/* ==================== CSS VARIABLES - THEMES ==================== */


:root,
[data-theme="basic"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-glass: rgba(255, 255, 255, 0.85);
    --bg-glass-dark: rgba(245, 245, 245, 0.95);
    
    --color-primary: #7ef29c;
    --color-primary-dark: #3ea66a;
    --color-primary-light: #b8f5c9;
    --color-accent: #2dd573;
    
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #8a8a9a;
    --text-on-primary: #1a1a2e;
    
    --border-color: rgba(126, 242, 156, 0.5);
    --border-color-strong: rgba(126, 242, 156, 0.8);
    
    --shadow-sm: 0 2px 8px rgba(62, 166, 106, 0.15);
    --shadow-md: 0 4px 20px rgba(62, 166, 106, 0.2);
    --shadow-lg: 0 8px 40px rgba(62, 166, 106, 0.25);
    --shadow-glow: 0 0 30px rgba(126, 242, 156, 0.4);
    
    --font-title: 'FredokaOne', 'Segoe UI', sans-serif;
    --font-body: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    --btn-gradient: linear-gradient(135deg, #7ef29c 0%, #3ea66a 100%);
    --btn-hover-gradient: linear-gradient(135deg, #8ff5aa 0%, #4db878 100%);
    
    --grid-color: rgba(126, 242, 156, 0.15);
}


[data-theme="dark"] {
    --bg-primary: #0a0a0f;
    --bg-secondary: #121218;
    --bg-glass: rgba(18, 18, 24, 0.85);
    --bg-glass-dark: rgba(10, 10, 15, 0.95);
    
    --color-primary: #ffffff;
    --color-primary-dark: #e0e0e0;
    --color-primary-light: #f5f5f5;
    --color-accent: #ffffff;
    
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #707070;
    --text-on-primary: #0a0a0f;
    
    --border-color: rgba(255, 255, 255, 0.2);
    --border-color-strong: rgba(255, 255, 255, 0.4);
    
    --shadow-sm: 0 2px 8px rgba(255, 255, 255, 0.1);
    --shadow-md: 0 4px 20px rgba(255, 255, 255, 0.15);
    --shadow-lg: 0 8px 40px rgba(255, 255, 255, 0.2);
    --shadow-glow: 0 0 30px rgba(255, 255, 255, 0.3);
    
    --font-title: 'FredokaOne', 'Segoe UI', sans-serif;
    --font-body: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    --btn-gradient: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
    --btn-hover-gradient: linear-gradient(135deg, #f5f5f5 0%, #d0d0d0 100%);
    
    --grid-color: rgba(255, 255, 255, 0.08);
}


[data-theme="pixel"] {
    --bg-primary: #1a1c2c;
    --bg-secondary: #262b44;
    --bg-glass: rgba(26, 28, 44, 0.85);
    --bg-glass-dark: rgba(26, 28, 44, 0.95);
    
    --color-primary: #f4d35e;
    --color-primary-dark: #ee964b;
    --color-primary-light: #ffe66d;
    --color-accent: #e8a87c;
    
    --text-primary: #fffff0;
    --text-secondary: #c7cfcc;
    --text-muted: #8b9bb4;
    --text-on-primary: #1a1c2c;
    
    --border-color: rgba(244, 211, 94, 0.4);
    --border-color-strong: rgba(244, 211, 94, 0.6);
    
    --shadow-sm: 0 4px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 6px 0 rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 0 rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(244, 211, 94, 0.4);
    
    --font-title: 'ContraPhobotech', 'Monocraft', 'PixeloidSans', monospace;
    --font-body: 'Monocraft', 'PixeloidSans', 'Courier New', monospace;
    --font-pixel: 'ContraPhobotech', 'Monocraft', 'PixeloidSans', monospace;
    
    --btn-gradient: linear-gradient(180deg, #f4d35e 0%, #ee964b 100%);
    --btn-hover-gradient: linear-gradient(180deg, #ffe66d 0%, #f4a858 100%);
}


[data-theme="flow"] {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-glass: rgba(22, 27, 34, 0.85);
    --bg-glass-dark: rgba(13, 17, 23, 0.95);
    
    --color-primary: #00ff41;
    --color-primary-dark: #00cc33;
    --color-primary-light: #33ff66;
    --color-accent: #39ff14;
    
    --text-primary: #00ff41;
    --text-secondary: #8b949e;
    --text-muted: #484f58;
    --text-on-primary: #0d1117;
    
    --border-color: rgba(0, 255, 65, 0.3);
    --border-color-strong: rgba(0, 255, 65, 0.5);
    
    --shadow-sm: 0 0 10px rgba(0, 255, 65, 0.2);
    --shadow-md: 0 0 20px rgba(0, 255, 65, 0.3);
    --shadow-lg: 0 0 40px rgba(0, 255, 65, 0.4);
    --shadow-glow: 0 0 40px rgba(0, 255, 65, 0.5);
    
    --font-title: 'Monocraft', 'PixeloidSans', 'Courier New', monospace;
    --font-body: 'Monocraft', 'PixeloidSans', 'Consolas', monospace;
    
    --btn-gradient: linear-gradient(135deg, #00ff41 0%, #00cc33 100%);
    --btn-hover-gradient: linear-gradient(135deg, #33ff66 0%, #00ff41 100%);
}

/* ==================== BASE STYLES ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background 0.5s ease, color 0.5s ease;
}

.hidden {
    display: none !important;
}


.avatar-file-input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    border: 0;
    opacity: 0;
}

/* ==================== BACKGROUND CONTAINER ==================== */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.bg-basic,
.bg-dark,
.bg-pixel,
.bg-flow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

[data-theme="basic"] .bg-basic,
[data-theme="dark"] .bg-dark,
[data-theme="pixel"] .bg-pixel,
[data-theme="flow"] .bg-flow {
    opacity: 1;
    visibility: visible;
}

/* ==================== BASIC STYLE BACKGROUND ==================== */
.bg-basic {
    background: #ffffff;
}

.bg-basic .grid-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, rgba(126, 242, 156, 0.1) 1px, transparent 1px),
        linear-gradient(rgba(126, 242, 156, 0.1) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridPulse 4s ease-in-out infinite;
}

.shooting-stars-basic {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shooting-stars-basic .star {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
    opacity: 0;
    box-shadow: 0 0 10px 3px rgba(126, 242, 156, 0.8);
}

.shooting-stars-basic .star:nth-child(1) { top: 10%; left: -5%; animation: shootStar 7s linear infinite 0s; }
.shooting-stars-basic .star:nth-child(2) { top: 25%; left: -5%; animation: shootStar 9s linear infinite 1s; }
.shooting-stars-basic .star:nth-child(3) { top: 40%; left: -5%; animation: shootStar 8s linear infinite 2s; }
.shooting-stars-basic .star:nth-child(4) { top: 55%; left: -5%; animation: shootStar 10s linear infinite 3s; }
.shooting-stars-basic .star:nth-child(5) { top: 70%; left: -5%; animation: shootStar 7s linear infinite 4s; }
.shooting-stars-basic .star:nth-child(6) { top: 20%; left: -5%; animation: shootStar 9s linear infinite 5s; }
.shooting-stars-basic .star:nth-child(7) { top: 50%; left: -5%; animation: shootStar 8s linear infinite 6s; }
.shooting-stars-basic .star:nth-child(8) { top: 80%; left: -5%; animation: shootStar 10s linear infinite 2.5s; }
.shooting-stars-basic .star:nth-child(9) { top: 35%; left: -5%; animation: shootStar 7s linear infinite 4.5s; }

@keyframes shootStar {
    0% { transform: translateX(0) translateY(0); opacity: 0; }
    5% { opacity: 1; }
    80% { opacity: 0.8; }
    100% { transform: translateX(110vw) translateY(20vh); opacity: 0; }
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* ==================== DARK STYLE BACKGROUND ==================== */
.bg-dark {
    background: #0a0a0f;
}

.bg-dark .grid-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridPulse 4s ease-in-out infinite;
}

.bg-dark .grid-lines {
    position: absolute;
    width: 100%;
    height: 100%;
}

.grid-line {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
}

.grid-line.horizontal {
    width: 200%;
    height: 1px;
    left: -50%;
    animation: moveHorizontal 20s linear infinite;
}

.grid-line.horizontal:nth-child(1) { top: 20%; animation-delay: 0s; }
.grid-line.horizontal:nth-child(2) { top: 50%; animation-delay: -7s; }
.grid-line.horizontal:nth-child(3) { top: 80%; animation-delay: -14s; }

.grid-line.vertical {
    width: 1px;
    height: 200%;
    top: -50%;
    animation: moveVertical 15s linear infinite;
}

.grid-line.vertical:nth-child(4) { left: 20%; animation-delay: 0s; }
.grid-line.vertical:nth-child(5) { left: 50%; animation-delay: -5s; }
.grid-line.vertical:nth-child(6) { left: 80%; animation-delay: -10s; }

@keyframes moveHorizontal {
    0% { transform: translateX(-25%); opacity: 0.3; }
    50% { opacity: 0.8; }
    100% { transform: translateX(25%); opacity: 0.3; }
}

@keyframes moveVertical {
    0% { transform: translateY(-25%); opacity: 0.3; }
    50% { opacity: 0.8; }
    100% { transform: translateY(25%); opacity: 0.3; }
}

/* ==================== PIXEL STYLE BACKGROUND ==================== */
.bg-pixel {
    background: #1a1c2c;
}

.bg-pixel .bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    image-rendering: pixelated;
    transform: scale(1.02);
    filter: blur(2.3px) brightness(0.64) saturate(0.9);
}

.bg-pixel .bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(12, 14, 24, 0.28) 0%,
        rgba(16, 18, 30, 0.16) 45%,
        rgba(12, 14, 24, 0.35) 78%,
        rgba(8, 10, 18, 0.62) 100%
    );
}

/* ==================== FLOW STYLE BACKGROUND ==================== */
.bg-flow {
    background: #0d1117;
}

/* ==================== BLUR OVERLAY ==================== */
.blur-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
}

.blur-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* ==================== HEADER ==================== */
.global-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    background: var(--bg-glass);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background 0.3s ease, border-color 0.3s ease;
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-link {
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-title);
    font-size: 1.8rem;
    color: var(--color-primary);
    text-shadow: var(--shadow-glow);
    transition: color 0.3s ease;
}

[data-theme="basic"] .logo-text,
[data-theme="dark"] .logo-text {
    font-size: 2.25rem;
}

[data-theme="flow"] .logo-text {
    font-size: 2.05rem;
}

[data-theme="pixel"] .logo-text {
    font-size: clamp(1.15rem, 4vw, 1.58rem);
}


.hamburger-btn {
    width: 48px;
    height: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    background: var(--bg-glass-dark);
    border: 2px solid var(--border-color-strong);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.hamburger-btn:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.hamburger-line {
    width: 22px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.2s ease;
}

.hamburger-btn:hover .hamburger-line {
    background: var(--color-primary);
}


.user-icon-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.user-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-glass-dark);
    border: 2px solid var(--border-color-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: all 0.2s ease;
}

.user-icon:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.user-icon-text {
    font-size: 20px;
    font-weight: bold;
    color: var(--text-muted);
}

.user-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


.auth-buttons {
    display: flex;
    gap: 10px;
}

/* ==================== BUTTONS ==================== */
.btn {
    padding: 12px 24px;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--btn-gradient);
    color: var(--text-on-primary);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--btn-hover-gradient);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-ghost {
    background: var(--bg-glass-dark);
    color: var(--text-primary);
    border: 2px solid var(--border-color-strong);
}

.btn-ghost:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    transform: translateY(-2px);
}

[data-theme="dark"] .btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

[data-theme="pixel"] .btn-secondary {
    border-radius: 0;
    border-width: 3px;
    box-shadow: 3px 3px 0 var(--border-color);
}

[data-theme="flow"] .btn-secondary {
    background: rgba(0, 255, 65, 0.1);
    border-color: rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .btn-secondary:hover {
    background: rgba(0, 255, 65, 0.2);
    border-color: rgba(0, 255, 65, 0.6);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 100%);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

.btn-result {
    background: linear-gradient(135deg, #f4d35e 0%, #ee964b 100%);
    color: #1a1a2e;
    font-size: 16px;
    padding: 14px 30px;
    box-shadow: 0 0 20px rgba(244, 211, 94, 0.4);
}

.btn-result:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(244, 211, 94, 0.6);
}

.btn-start {
    font-size: 18px;
    padding: 18px 45px;
    margin-top: 30px;
    animation: pulse 2s infinite;
}



@keyframes pulse {
    0%, 100% { box-shadow: var(--shadow-sm); }
    50% { box-shadow: var(--shadow-md), var(--shadow-glow); }
}

.btn-small {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
}

.btn-apply {
    width: 100%;
    padding: 14px;
    margin-top: 20px;
}

.mini-btn {
    padding: 10px 16px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    background: var(--bg-glass-dark);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.mini-btn:hover {
    border-color: var(--color-primary);
}


[data-theme="pixel"] .btn {
    border-radius: 0;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    font-size: 14px;
    line-height: 1.2;
}

[data-theme="pixel"] .btn:hover {
    transform: translateY(-4px);
}

[data-theme="pixel"] .btn:active {
    transform: translateY(0);
    box-shadow: none;
}


[data-theme="flow"] .btn {
    text-shadow: 0 0 10px var(--color-primary);
}


[data-theme="pixel"] .hamburger-btn,
[data-theme="pixel"] .user-icon,
[data-theme="pixel"] .menu-item,
[data-theme="pixel"] .modal,
[data-theme="pixel"] .side-panel,
[data-theme="pixel"] .container,
[data-theme="pixel"] .feature-card,
[data-theme="pixel"] .material-input,
[data-theme="pixel"] .info-box,
[data-theme="pixel"] .progress-bar,
[data-theme="pixel"] .flashcard-face,
[data-theme="pixel"] .option,
[data-theme="pixel"] .matching-item,
[data-theme="pixel"] .material-card,
[data-theme="pixel"] .toast,
[data-theme="pixel"] .form-input,
[data-theme="pixel"] .search-input,
[data-theme="pixel"] .mini-btn {
    border-radius: 0 !important;
}

[data-theme="pixel"] .main-title {
    text-shadow: 4px 4px 0 rgba(0,0,0,0.3);
    -webkit-text-stroke: 2px rgba(0,0,0,0.2);
}

.action-card-assistant {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at top right, rgba(72, 187, 120, 0.2), transparent 42%),
        linear-gradient(145deg, rgba(15, 23, 42, 0.92), rgba(30, 41, 59, 0.86));
    color: #f8fafc;
}

.action-card-assistant h3,
.action-card-assistant p {
    color: inherit;
}

.assistant-entry-section {
    margin-top: 8px;
}

.assistant-entry-window {
    --aew-border: rgba(148, 163, 184, 0.2);
    --aew-bg:
        radial-gradient(circle at top left, rgba(251, 191, 36, 0.16), transparent 36%),
        radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.16), transparent 34%),
        linear-gradient(145deg, rgba(15, 23, 42, 0.96), rgba(17, 24, 39, 0.92));
    --aew-shadow: 0 30px 70px rgba(15, 23, 42, 0.22);
    --aew-hover-border: rgba(34, 197, 94, 0.34);
    --aew-hover-shadow: 0 34px 80px rgba(15, 23, 42, 0.28);
    --aew-badge-bg: rgba(15, 118, 110, 0.22);
    --aew-badge-border: rgba(45, 212, 191, 0.28);
    --aew-badge-color: #d5fff7;
    --aew-title-color: #f8fafc;
    --aew-text-color: rgba(226, 232, 240, 0.88);
    --aew-tag-border: rgba(148, 163, 184, 0.18);
    --aew-tag-bg: rgba(255, 255, 255, 0.06);
    --aew-tag-color: #e2e8f0;
    --aew-preview-border: rgba(148, 163, 184, 0.18);
    --aew-preview-bg: rgba(255, 255, 255, 0.06);
    --aew-preview-header-border: rgba(148, 163, 184, 0.14);
    --aew-preview-dot: rgba(226, 232, 240, 0.72);
    --aew-preview-card-bg:
        radial-gradient(circle at top right, rgba(34, 197, 94, 0.12), transparent 44%),
        rgba(15, 23, 42, 0.72);
    --aew-preview-card-border: rgba(148, 163, 184, 0.16);
    --aew-preview-card-color: #f8fafc;
    --aew-preview-card-text: rgba(226, 232, 240, 0.78);
    --aew-preview-label: rgba(148, 163, 184, 0.9);
    --aew-mini-bg: rgba(15, 23, 42, 0.58);
    --aew-mini-border: rgba(148, 163, 184, 0.14);
    --aew-mini-color: #e2e8f0;
    --aew-neon-1: rgba(56, 189, 248, 0.42);
    --aew-neon-2: rgba(34, 197, 94, 0.38);
    --aew-neon-3: rgba(168, 85, 247, 0.34);
    --aew-overlay-1: rgba(255, 255, 255, 0.1);
    --aew-overlay-2: rgba(148, 163, 184, 0.08);
    --aew-overlay-3: rgba(255, 255, 255, 0.04);
    --aew-overlay-opacity: 0.44;
    --aew-btn-bg-start: rgba(34, 197, 94, 0.9);
    --aew-btn-bg-end: rgba(16, 185, 129, 0.92);
    --aew-btn-border: rgba(167, 243, 208, 0.6);
    --aew-btn-color: #ecfff5;
    --aew-btn-glow: rgba(16, 185, 129, 0.44);
    --aew-btn-sheen: rgba(255, 255, 255, 0.78);
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: 26px;
    padding: 28px;
    border-radius: 30px;
    border: 1px solid var(--aew-border);
    background: var(--aew-bg);
    box-shadow: var(--aew-shadow);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    isolation: isolate;
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.assistant-entry-window::before {
    content: "";
    position: absolute;
    inset: -28%;
    background:
        conic-gradient(
            from 0deg at 50% 50%,
            transparent 0deg,
            var(--aew-neon-1) 72deg,
            transparent 124deg,
            var(--aew-neon-2) 198deg,
            transparent 250deg,
            var(--aew-neon-3) 330deg,
            transparent 360deg
        );
    filter: blur(44px);
    opacity: 0.42;
    pointer-events: none;
    animation: assistantEntryAura 15s linear infinite;
    z-index: 0;
}

.assistant-entry-window::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 14% 20%, var(--aew-overlay-1), transparent 40%),
        radial-gradient(circle at 84% 82%, var(--aew-overlay-2), transparent 46%),
        linear-gradient(122deg, transparent 0%, var(--aew-overlay-3) 48%, transparent 76%);
    opacity: var(--aew-overlay-opacity);
    pointer-events: none;
    mask-image: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.96) 18%, rgba(0, 0, 0, 0.96) 86%, transparent 100%);
    animation: assistantEntryScan 9s ease-in-out infinite;
    z-index: 0;
}

.assistant-entry-window:hover {
    transform: translateY(-2px);
    border-color: var(--aew-hover-border);
    box-shadow: var(--aew-hover-shadow);
}

.assistant-entry-copy {
    display: flex;
    flex-direction: column;
    gap: 18px;
    justify-content: flex-start;
    padding-top: 4px;
    position: relative;
    z-index: 1;
}

.assistant-entry-badge {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--aew-badge-bg);
    border: 1px solid var(--aew-badge-border);
    color: var(--aew-badge-color);
    font-family: 'Monocraft', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.assistant-entry-title {
    margin: 0;
    color: var(--aew-title-color);
    font-size: clamp(1.85rem, 3vw, 2.7rem);
    line-height: 1.08;
}

.assistant-entry-text {
    margin: 0;
    max-width: 680px;
    color: var(--aew-text-color);
    font-size: 1.02rem;
    line-height: 1.7;
}

.assistant-entry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.assistant-entry-tag {
    display: inline-flex;
    align-items: center;
    padding: 9px 12px;
    border-radius: 14px;
    border: 1px solid var(--aew-tag-border);
    background: var(--aew-tag-bg);
    color: var(--aew-tag-color);
    font-size: 0.92rem;
}

.assistant-entry-btn {
    align-self: flex-start;
    min-width: 196px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--aew-btn-border);
    background: linear-gradient(95deg, var(--aew-btn-bg-start), var(--aew-btn-bg-end));
    color: var(--aew-btn-color);
    box-shadow: 0 0 20px var(--aew-btn-glow), 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.26);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.assistant-entry-btn::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        110deg,
        transparent 0%,
        transparent 40%,
        var(--aew-btn-sheen) 50%,
        transparent 60%,
        transparent 100%
    );
    transform: translateX(-140%);
    animation: assistantEntryButtonSweep 2.8s linear infinite;
    pointer-events: none;
}

.assistant-entry-btn:hover {
    transform: translateY(-1px) scale(1.01);
    filter: saturate(1.08);
    box-shadow: 0 0 26px var(--aew-btn-glow), 0 0 0 1px rgba(255, 255, 255, 0.18) inset;
}

.assistant-entry-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.assistant-entry-preview-window {
    width: 100%;
    max-width: 420px;
    border-radius: 24px;
    border: 1px solid var(--aew-preview-border);
    background: var(--aew-preview-bg);
    backdrop-filter: blur(16px);
    overflow: hidden;
}

.assistant-entry-preview-header {
    display: flex;
    gap: 8px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--aew-preview-header-border);
}

.assistant-entry-preview-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--aew-preview-dot);
}

.assistant-entry-preview-body {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px;
}

.assistant-entry-preview-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px;
    border-radius: 20px;
    background: var(--aew-preview-card-bg);
    border: 1px solid var(--aew-preview-card-border);
    color: var(--aew-preview-card-color);
}

.assistant-entry-preview-card p {
    margin: 0;
    color: var(--aew-preview-card-text);
    line-height: 1.5;
    font-size: 0.94rem;
}

.assistant-entry-preview-label {
    color: var(--aew-preview-label);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.assistant-entry-preview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.assistant-entry-mini-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 15px;
    border-radius: 18px;
    background: var(--aew-mini-bg);
    border: 1px solid var(--aew-mini-border);
    color: var(--aew-mini-color);
    min-height: 96px;
}

.assistant-entry-mini-icon {
    font-size: 1.1rem;
}

[data-theme="basic"] .assistant-entry-window {
    --aew-border: rgba(30, 64, 175, 0.24);
    --aew-bg:
        radial-gradient(circle at 12% 12%, rgba(56, 189, 248, 0.26), transparent 40%),
        radial-gradient(circle at 78% 20%, rgba(59, 130, 246, 0.2), transparent 44%),
        radial-gradient(circle at 84% 86%, rgba(16, 185, 129, 0.14), transparent 42%),
        linear-gradient(150deg, rgba(255, 255, 255, 0.99), rgba(244, 250, 255, 0.98));
    --aew-shadow: 0 22px 52px rgba(30, 64, 175, 0.16);
    --aew-hover-border: rgba(37, 99, 235, 0.4);
    --aew-hover-shadow: 0 26px 58px rgba(30, 64, 175, 0.2);
    --aew-badge-bg: rgba(37, 99, 235, 0.12);
    --aew-badge-border: rgba(37, 99, 235, 0.28);
    --aew-badge-color: #0f2d62;
    --aew-title-color: #102750;
    --aew-text-color: rgba(25, 54, 101, 0.88);
    --aew-tag-border: rgba(37, 99, 235, 0.22);
    --aew-tag-bg: rgba(255, 255, 255, 0.86);
    --aew-tag-color: #173f80;
    --aew-preview-border: rgba(37, 99, 235, 0.18);
    --aew-preview-bg: rgba(255, 255, 255, 0.84);
    --aew-preview-header-border: rgba(37, 99, 235, 0.14);
    --aew-preview-dot: rgba(21, 73, 153, 0.52);
    --aew-preview-card-bg:
        radial-gradient(circle at top right, rgba(14, 165, 233, 0.14), transparent 46%),
        rgba(255, 255, 255, 0.9);
    --aew-preview-card-border: rgba(37, 99, 235, 0.16);
    --aew-preview-card-color: #122a54;
    --aew-preview-card-text: rgba(18, 42, 84, 0.8);
    --aew-preview-label: rgba(29, 78, 160, 0.74);
    --aew-mini-bg: rgba(248, 252, 255, 0.92);
    --aew-mini-border: rgba(37, 99, 235, 0.14);
    --aew-mini-color: #184286;
    --aew-neon-1: rgba(56, 189, 248, 0.3);
    --aew-neon-2: rgba(37, 99, 235, 0.24);
    --aew-neon-3: rgba(16, 185, 129, 0.18);
    --aew-overlay-1: rgba(56, 189, 248, 0.16);
    --aew-overlay-2: rgba(37, 99, 235, 0.1);
    --aew-overlay-3: rgba(255, 255, 255, 0.22);
    --aew-overlay-opacity: 0.48;
    --aew-btn-bg-start: rgba(29, 78, 216, 0.94);
    --aew-btn-bg-end: rgba(14, 116, 144, 0.92);
    --aew-btn-border: rgba(191, 219, 254, 0.76);
    --aew-btn-color: #f7fbff;
    --aew-btn-glow: rgba(37, 99, 235, 0.28);
    --aew-btn-sheen: rgba(255, 255, 255, 0.65);
}

[data-theme="dark"] .assistant-entry-window {
    --aew-border: rgba(99, 102, 241, 0.28);
    --aew-bg:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.12), transparent 44%),
        radial-gradient(circle at 72% 36%, rgba(99, 102, 241, 0.12), transparent 42%),
        radial-gradient(circle at bottom right, rgba(16, 185, 129, 0.08), transparent 46%),
        linear-gradient(145deg, rgba(5, 8, 16, 0.98), rgba(10, 14, 26, 0.97));
    --aew-shadow: 0 34px 82px rgba(2, 6, 23, 0.62);
    --aew-hover-border: rgba(129, 140, 248, 0.45);
    --aew-hover-shadow: 0 34px 84px rgba(15, 23, 42, 0.56);
    --aew-badge-bg: rgba(99, 102, 241, 0.18);
    --aew-badge-border: rgba(129, 140, 248, 0.34);
    --aew-badge-color: #d6dcff;
    --aew-title-color: #edf2ff;
    --aew-text-color: rgba(200, 212, 236, 0.84);
    --aew-tag-border: rgba(129, 140, 248, 0.22);
    --aew-tag-bg: rgba(15, 23, 42, 0.54);
    --aew-tag-color: #dce5ff;
    --aew-preview-border: rgba(129, 140, 248, 0.2);
    --aew-preview-bg: rgba(10, 14, 26, 0.66);
    --aew-preview-header-border: rgba(129, 140, 248, 0.16);
    --aew-preview-dot: rgba(203, 213, 225, 0.7);
    --aew-preview-card-bg:
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.1), transparent 46%),
        rgba(8, 12, 24, 0.8);
    --aew-preview-card-border: rgba(129, 140, 248, 0.18);
    --aew-preview-card-color: #f3f6ff;
    --aew-preview-card-text: rgba(214, 223, 241, 0.78);
    --aew-preview-label: rgba(173, 187, 214, 0.84);
    --aew-mini-bg: rgba(8, 12, 24, 0.74);
    --aew-mini-border: rgba(129, 140, 248, 0.14);
    --aew-mini-color: #dce5ff;
    --aew-neon-1: rgba(129, 140, 248, 0.28);
    --aew-neon-2: rgba(59, 130, 246, 0.22);
    --aew-neon-3: rgba(16, 185, 129, 0.16);
    --aew-overlay-1: rgba(129, 140, 248, 0.2);
    --aew-overlay-2: rgba(59, 130, 246, 0.12);
    --aew-overlay-3: rgba(5, 8, 16, 0.3);
    --aew-overlay-opacity: 0.38;
    --aew-btn-bg-start: rgba(99, 102, 241, 0.9);
    --aew-btn-bg-end: rgba(79, 70, 229, 0.92);
    --aew-btn-border: rgba(199, 210, 254, 0.62);
    --aew-btn-color: #f2f5ff;
    --aew-btn-glow: rgba(99, 102, 241, 0.4);
    --aew-btn-sheen: rgba(224, 231, 255, 0.72);
}

[data-theme="pixel"] .assistant-entry-window {
    --aew-border: rgba(244, 211, 94, 0.65);
    --aew-bg:
        linear-gradient(145deg, rgba(21, 26, 46, 0.96), rgba(29, 37, 65, 0.94));
    --aew-shadow: 8px 8px 0 rgba(9, 12, 22, 0.78);
    --aew-hover-border: rgba(255, 230, 109, 0.92);
    --aew-hover-shadow: 10px 10px 0 rgba(9, 12, 22, 0.88);
    --aew-badge-bg: rgba(244, 211, 94, 0.2);
    --aew-badge-border: rgba(255, 230, 109, 0.5);
    --aew-badge-color: #fff2bb;
    --aew-title-color: #f5f8ff;
    --aew-text-color: rgba(218, 231, 255, 0.86);
    --aew-tag-border: rgba(244, 211, 94, 0.4);
    --aew-tag-bg: rgba(12, 18, 34, 0.74);
    --aew-tag-color: #ffe89b;
    --aew-preview-border: rgba(244, 211, 94, 0.42);
    --aew-preview-bg: rgba(12, 18, 34, 0.72);
    --aew-preview-header-border: rgba(244, 211, 94, 0.35);
    --aew-preview-dot: rgba(255, 230, 109, 0.76);
    --aew-preview-card-bg:
        radial-gradient(circle at top right, rgba(79, 70, 229, 0.22), transparent 44%),
        rgba(11, 16, 32, 0.82);
    --aew-preview-card-border: rgba(244, 211, 94, 0.35);
    --aew-preview-card-color: #f8fbff;
    --aew-preview-card-text: rgba(219, 231, 255, 0.78);
    --aew-preview-label: rgba(255, 230, 109, 0.8);
    --aew-mini-bg: rgba(13, 18, 34, 0.72);
    --aew-mini-border: rgba(244, 211, 94, 0.3);
    --aew-mini-color: #f2f6ff;
    --aew-neon-1: rgba(255, 230, 109, 0.38);
    --aew-neon-2: rgba(79, 70, 229, 0.3);
    --aew-neon-3: rgba(56, 189, 248, 0.28);
    --aew-overlay-1: rgba(255, 230, 109, 0.2);
    --aew-overlay-2: rgba(79, 70, 229, 0.12);
    --aew-overlay-3: rgba(10, 15, 28, 0.28);
    --aew-overlay-opacity: 0.44;
    --aew-btn-bg-start: rgba(244, 211, 94, 0.88);
    --aew-btn-bg-end: rgba(245, 158, 11, 0.9);
    --aew-btn-border: rgba(255, 237, 167, 0.8);
    --aew-btn-color: #22160b;
    --aew-btn-glow: rgba(245, 158, 11, 0.45);
    --aew-btn-sheen: rgba(255, 248, 220, 0.75);
}

[data-theme="flow"] .assistant-entry-window {
    --aew-border: rgba(0, 255, 65, 0.42);
    --aew-bg:
        radial-gradient(circle at top left, rgba(0, 255, 65, 0.16), transparent 42%),
        radial-gradient(circle at bottom right, rgba(0, 255, 65, 0.12), transparent 45%),
        linear-gradient(145deg, rgba(4, 17, 10, 0.96), rgba(6, 24, 14, 0.95));
    --aew-shadow: 0 0 24px rgba(0, 255, 65, 0.24), 0 28px 72px rgba(0, 0, 0, 0.52);
    --aew-hover-border: rgba(0, 255, 65, 0.74);
    --aew-hover-shadow: 0 0 32px rgba(0, 255, 65, 0.3), 0 32px 82px rgba(0, 0, 0, 0.58);
    --aew-badge-bg: rgba(0, 255, 65, 0.18);
    --aew-badge-border: rgba(0, 255, 65, 0.4);
    --aew-badge-color: #d6ffe0;
    --aew-title-color: #e9ffef;
    --aew-text-color: rgba(194, 255, 210, 0.82);
    --aew-tag-border: rgba(0, 255, 65, 0.32);
    --aew-tag-bg: rgba(5, 28, 13, 0.62);
    --aew-tag-color: #d1ffdb;
    --aew-preview-border: rgba(0, 255, 65, 0.26);
    --aew-preview-bg: rgba(6, 30, 14, 0.6);
    --aew-preview-header-border: rgba(0, 255, 65, 0.22);
    --aew-preview-dot: rgba(146, 255, 173, 0.72);
    --aew-preview-card-bg:
        radial-gradient(circle at top right, rgba(0, 255, 65, 0.15), transparent 46%),
        rgba(5, 24, 12, 0.74);
    --aew-preview-card-border: rgba(0, 255, 65, 0.24);
    --aew-preview-card-color: #e8ffed;
    --aew-preview-card-text: rgba(197, 255, 212, 0.76);
    --aew-preview-label: rgba(148, 255, 173, 0.84);
    --aew-mini-bg: rgba(5, 24, 12, 0.68);
    --aew-mini-border: rgba(0, 255, 65, 0.2);
    --aew-mini-color: #d1ffdb;
    --aew-neon-1: rgba(0, 255, 65, 0.48);
    --aew-neon-2: rgba(45, 212, 191, 0.36);
    --aew-neon-3: rgba(16, 185, 129, 0.26);
    --aew-overlay-1: rgba(0, 255, 65, 0.22);
    --aew-overlay-2: rgba(45, 212, 191, 0.14);
    --aew-overlay-3: rgba(2, 16, 8, 0.28);
    --aew-overlay-opacity: 0.42;
    --aew-btn-bg-start: rgba(0, 255, 65, 0.84);
    --aew-btn-bg-end: rgba(5, 150, 64, 0.92);
    --aew-btn-border: rgba(134, 239, 172, 0.72);
    --aew-btn-color: #03150a;
    --aew-btn-glow: rgba(0, 255, 65, 0.42);
    --aew-btn-sheen: rgba(220, 252, 231, 0.7);
}

@keyframes assistantEntryAura {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.08); }
    100% { transform: rotate(360deg) scale(1); }
}

@keyframes assistantEntryScan {
    0%, 100% { transform: translate3d(-2%, 0, 0); opacity: 0.26; }
    50% { transform: translate3d(2%, -1.5%, 0); opacity: 0.42; }
}

@keyframes assistantEntryButtonSweep {
    0% { transform: translateX(-140%); }
    100% { transform: translateX(170%); }
}

@media (prefers-reduced-motion: reduce) {
    .assistant-entry-window::before,
    .assistant-entry-window::after,
    .assistant-entry-btn::before {
        animation: none !important;
    }
}

.assistant-shell {
    max-width: 1480px;
    margin: 0 auto;
    padding: 24px 20px 40px;
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr) 300px;
    gap: 18px;
    align-items: start;
}

.assistant-sidebar,
.assistant-main-column,
.assistant-insights {
    min-width: 0;
}

.assistant-sidebar,
.assistant-insights,
.assistant-panel {
    border-radius: 28px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    background:
        linear-gradient(180deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.82)),
        radial-gradient(circle at top left, rgba(34, 197, 94, 0.14), transparent 38%);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
}

.assistant-sidebar {
    position: sticky;
    top: 20px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.assistant-sidebar-top {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.assistant-sidebar-title-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.assistant-sidebar-title-group .page-title {
    margin: 0;
}

.assistant-new-session-btn {
    width: 100%;
}

.assistant-sidebar-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 0;
}

.assistant-panel-label {
    color: rgba(148, 163, 184, 0.92);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.assistant-session-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 72vh;
    overflow-y: auto;
    padding-right: 4px;
}

.assistant-session-item {
    width: 100%;
    text-align: left;
    padding: 14px;
    border-radius: 18px;
    border: 1px solid rgba(148, 163, 184, 0.14);
    background: rgba(255, 255, 255, 0.04);
    color: #e2e8f0;
    cursor: pointer;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.assistant-session-item:hover {
    transform: translateY(-1px);
    border-color: rgba(45, 212, 191, 0.26);
    background: rgba(255, 255, 255, 0.08);
}

.assistant-session-item.active {
    border-color: rgba(34, 197, 94, 0.34);
    background: linear-gradient(145deg, rgba(16, 185, 129, 0.14), rgba(34, 197, 94, 0.08));
}

.assistant-session-item-title {
    font-weight: 600;
    line-height: 1.35;
    color: #f8fafc;
}

.assistant-session-item-meta {
    margin-top: 8px;
    color: rgba(148, 163, 184, 0.92);
    font-size: 0.84rem;
    line-height: 1.4;
}

.assistant-main-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.assistant-page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 4px 4px 0;
}

.assistant-page-header .page-title {
    margin: 8px 0 0;
}

.assistant-session-meta {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(226, 232, 240, 0.9);
    font-size: 0.84rem;
}

.assistant-subtitle {
    margin: 10px 0 0;
    color: var(--text-secondary);
    max-width: 760px;
    line-height: 1.65;
}

.assistant-control-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.assistant-control-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 18px;
    border-radius: 20px;
    border: 1px solid rgba(148, 163, 184, 0.14);
    background: rgba(255, 255, 255, 0.05);
    color: #f8fafc;
    font: inherit;
    cursor: pointer;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.assistant-control-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(45, 212, 191, 0.28);
    background: rgba(255, 255, 255, 0.08);
}

.assistant-control-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 14px;
    background: rgba(16, 185, 129, 0.16);
    font-size: 1rem;
}

.assistant-panel {
    display: flex;
    flex-direction: column;
    min-height: 72vh;
    gap: 16px;
    padding: 18px;
}

.assistant-messages {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 420px;
    max-height: 72vh;
    overflow-y: auto;
    padding-right: 4px;
}

.assistant-message {
    display: flex;
}

.assistant-message-user {
    justify-content: flex-end;
}

.assistant-message-assistant {
    justify-content: flex-start;
}

.assistant-bubble {
    max-width: min(760px, 90%);
    padding: 14px 16px;
    border-radius: 22px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
}

.assistant-message-user .assistant-bubble {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.22), rgba(16, 185, 129, 0.18));
}

.assistant-message-title {
    font-family: 'FredokaOne', sans-serif;
    font-size: 1rem;
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}

.assistant-message-text {
    white-space: pre-wrap;
    line-height: 1.55;
    color: var(--text-primary);
}

.assistant-action-row,
.assistant-citation-row,
.assistant-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.assistant-action-row,
.assistant-citation-row {
    margin-top: 12px;
}

.assistant-action-btn,
.assistant-chip {
    border: 1px solid rgba(148, 163, 184, 0.24);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-radius: 999px;
    padding: 10px 14px;
    font: inherit;
    cursor: pointer;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.assistant-action-btn:hover,
.assistant-chip:hover {
    transform: translateY(-1px);
    border-color: rgba(34, 197, 94, 0.45);
    background: rgba(34, 197, 94, 0.14);
}

.assistant-citation-pill {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.12);
    color: var(--text-secondary);
    font-size: 0.84rem;
}

.assistant-composer {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    align-items: end;
}

.assistant-input {
    width: 100%;
    min-height: 88px;
    resize: vertical;
    border-radius: 18px;
    border: 1px solid rgba(148, 163, 184, 0.22);
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-primary);
    padding: 14px 16px;
    font: inherit;
    line-height: 1.5;
}

.assistant-input:focus {
    outline: none;
    border-color: rgba(34, 197, 94, 0.52);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.16);
}

.assistant-send-btn {
    min-width: 120px;
    height: 52px;
}

.assistant-insights {
    position: sticky;
    top: 20px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.assistant-context-card {
    padding: 16px;
    border-radius: 22px;
    border: 1px solid rgba(148, 163, 184, 0.12);
    background: rgba(255, 255, 255, 0.05);
}

.assistant-context-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
}

.assistant-context-item {
    padding: 12px 13px;
    border-radius: 16px;
    background: rgba(15, 23, 42, 0.62);
    border: 1px solid rgba(148, 163, 184, 0.12);
    color: #e2e8f0;
    line-height: 1.5;
    font-size: 0.94rem;
}

.assistant-context-item strong {
    display: block;
    margin-bottom: 4px;
    color: #f8fafc;
    font-size: 0.84rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.assistant-empty-state {
    color: rgba(148, 163, 184, 0.92);
}

@media (max-width: 1260px) {
    .assistant-shell {
        grid-template-columns: 260px minmax(0, 1fr);
    }

    .assistant-insights {
        position: static;
        grid-column: 1 / -1;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 940px) {
    .assistant-entry-window {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 22px;
    }

    .assistant-shell {
        grid-template-columns: 1fr;
    }

    .assistant-sidebar {
        position: static;
    }

    .assistant-control-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .assistant-insights {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 820px) {
    .assistant-entry-preview {
        display: none;
    }

    .assistant-entry-window {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .assistant-shell {
        padding: 16px 12px 28px;
    }

    .assistant-sidebar,
    .assistant-insights,
    .assistant-panel {
        min-height: 72vh;
        padding: 14px;
        border-radius: 20px;
    }

    .assistant-control-grid,
    .assistant-entry-preview-grid {
        grid-template-columns: 1fr;
    }

    .assistant-bubble {
        max-width: 100%;
    }

    .assistant-composer {
        grid-template-columns: 1fr;
    }

    .assistant-send-btn {
        width: 100%;
    }

    .assistant-entry-window {
        padding: 18px;
    }

    .assistant-entry-copy {
        gap: 12px;
        padding-top: 0;
    }

    .assistant-entry-title {
        font-size: clamp(1.45rem, 7.4vw, 1.9rem);
        line-height: 1.18;
    }

    .assistant-entry-text {
        font-size: 0.94rem;
        line-height: 1.55;
    }

    .assistant-entry-tags {
        gap: 8px;
    }

    .assistant-entry-tag {
        font-size: 0.82rem;
        padding: 7px 10px;
    }

    .assistant-entry-btn {
        width: 100%;
        min-width: 0;
    }
}

/* Keep pixel style but use a cyrillic-friendly stack for heading text. */
[data-theme="pixel"] .page-title,
[data-theme="pixel"] .section-title,
[data-theme="pixel"] .modal-title,
[data-theme="pixel"] .ai-page-title {
    font-family: 'PixeloidSans', 'Monocraft', 'Segoe UI', sans-serif;
    letter-spacing: 0.01em;
    line-height: 1.25;
}

[data-theme="pixel"] .page-title {
    font-size: 1.72rem;
}

[data-theme="pixel"] .section-title {
    font-size: 1.38rem;
}

[data-theme="pixel"] .modal-title {
    font-size: 1.62rem;
}

[data-theme="pixel"] .flashcard {
    border-radius: 0;
}

[data-theme="pixel"] .modal-close-btn,
[data-theme="pixel"] .back-btn,
[data-theme="pixel"] .close-panel-btn {
    border-radius: 0 !important;
}


[data-theme="flow"] .hamburger-btn:hover,
[data-theme="flow"] .user-icon:hover,
[data-theme="flow"] .menu-item:hover,
[data-theme="flow"] .feature-card:hover {
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .main-title {
    animation: textGlow 2s ease-in-out infinite alternate;
}

@keyframes textGlow {
    from { text-shadow: 0 0 20px rgba(0, 255, 65, 0.5), 0 0 40px rgba(0, 255, 65, 0.3); }
    to { text-shadow: 0 0 30px rgba(0, 255, 65, 0.8), 0 0 60px rgba(0, 255, 65, 0.5); }
}

[data-theme="flow"] .container,
[data-theme="flow"] .modal,
[data-theme="flow"] .side-panel {
    border-color: rgba(0, 255, 65, 0.4);
}

[data-theme="flow"] .form-input:focus,
[data-theme="flow"] .material-input:focus,
[data-theme="flow"] .search-input:focus {
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

/* ==================== SIDE PANELS ==================== */
.side-panel {
    position: fixed;
    top: 0;
    width: 320px;
    height: 100%;
    background: var(--bg-glass-dark);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--border-color);
    z-index: 1001;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.side-panel-left {
    left: 0;
    transform: translateX(-100%);
    border-radius: 0 16px 16px 0;
}

.side-panel-left.active {
    transform: translateX(0);
}

.side-panel-right {
    right: 0;
    transform: translateX(100%);
    border-radius: 16px 0 0 16px;
}

.side-panel-right.active {
    transform: translateX(0);
}

.side-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.panel-title {
    font-weight: 600;
    font-size: 18px;
    color: var(--text-primary);
}

.side-panel-header-right {
    justify-content: flex-end;
}

.close-panel-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.close-panel-btn svg {
    width: 22px;
    height: 22px;
    fill: var(--text-primary);
    transition: all 0.2s ease;
}

.close-panel-btn:hover {
    border-color: var(--color-primary);
}

.close-panel-btn:hover svg {
    fill: var(--color-primary);
}

.side-panel-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.side-panel-content-right {
    display: flex;
    flex-direction: column;
    align-items: center;
}


.user-profile-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 0;
    gap: 12px;
    width: 100%;
}

.user-profile-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 3px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.profile-placeholder {
    font-size: 40px;
    font-weight: bold;
    color: var(--text-muted);
}

.profile-avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-username {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}


.menu-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.menu-item:hover {
    border-color: var(--color-primary);
    transform: translateX(4px);
}

.menu-item-danger:hover {
    border-color: #ff6b6b;
}

.menu-icon {
    font-size: 22px;
    width: 30px;
    text-align: center;
}

.menu-text {
    flex: 1;
    font-weight: 500;
    font-size: 15px;
    color: var(--text-primary);
}

.menu-arrow {
    font-size: 20px;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.menu-item:hover .menu-arrow {
    color: var(--color-primary);
    transform: translateX(3px);
}

/* ==================== MAIN CONTENT / LANDING ==================== */
.main-content {
    position: relative;
    z-index: 1;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 70px;
}

.center-content {
    text-align: center;
    padding: 20px;
}

.title-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    font-size: clamp(4rem, 15vw, 10rem); 
    -webkit-tap-highlight-color: transparent;
}

.main-title {
    font-family: var(--font-title);
    font-size: clamp(4rem, 15vw, 10rem);
    color: var(--text-primary);
    text-shadow: var(--shadow-glow);
    letter-spacing: 0.05em;
    transition: all 0.5s ease;
}


[data-theme="flow"] .title-wrapper {
    background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
    padding: 25px 50px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: inset 0 0 50px rgba(0, 255, 65, 0.05), var(--shadow-lg);
}

.title-cursor {
    display: none;
}

[data-theme="flow"] .title-cursor {
    display: inline-block;
    width: 0.15em;
    height: 1em;
    background: var(--color-primary);
    margin-left: 0.06em;
    animation: cursorBlink 1s step-end infinite;
    box-shadow: 0 0 20px var(--color-primary), 0 0 40px var(--color-primary);
    vertical-align: baseline;
    position: relative;
    top: 0.05em;
}

@keyframes cursorBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* ==================== PAGE CONTENT ==================== */
.page-content {
    position: relative;
    z-index: auto;
    min-height: 100vh;
    padding: 90px 20px 30px;
    overflow-y: auto;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    padding: 30px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.page-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.back-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-glass-dark);
    border: 2px solid var(--border-color);
    color: var(--color-primary);
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-btn:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.page-title {
    font-family: var(--font-title);
    font-size: 1.6rem;
    color: var(--color-primary);
    flex: 1;
}

/* ==================== FEATURE GRID ==================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.feature-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 25px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.feature-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ==================== INPUT SECTION ==================== */
.material-input {
    width: 100%;
    min-height: 200px;
    padding: 15px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    line-height: 1.6;
    transition: all 0.2s ease;
}

.material-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(126, 242, 156, 0.2);
}

.material-input::placeholder {
    color: var(--text-muted);
}

.input-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
}

.info-box {
    background: rgba(126, 242, 156, 0.1);
    border-left: 4px solid var(--color-primary);
    border-radius: 8px;
    padding: 12px 15px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

[data-theme="dark"] .info-box {
    background: rgba(255, 255, 255, 0.05);
    border-left-color: var(--color-primary);
}

[data-theme="flow"] .info-box {
    background: rgba(0, 255, 65, 0.1);
}

.button-group {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.error-message {
    background: rgba(255, 107, 107, 0.15);
    border: 1px solid rgba(255, 107, 107, 0.5);
    border-radius: 8px;
    padding: 12px;
    color: #ff6b6b;
    margin-top: 15px;
    text-align: center;
}

/* ==================== LEARNING SECTION ==================== */
.progress-container {
    margin-bottom: 25px;
}

.progress-bar {
    width: 100%;
    height: 25px;
    background: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-fill {
    height: 100%;
    background: var(--btn-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-on-primary);
    font-weight: bold;
    font-size: 0.85rem;
    transition: width 0.5s ease;
}

.score-board {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.score-item {
    background: linear-gradient(135deg, rgba(126, 242, 156, 0.2) 0%, rgba(62, 166, 106, 0.3) 100%);
    padding: 12px 20px;
    border-radius: 12px;
    text-align: center;
    min-width: 90px;
}

[data-theme="dark"] .score-item {
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.2) 100%);
}

[data-theme="pixel"] .score-item {
    background: linear-gradient(135deg, rgba(244, 211, 94, 0.2) 0%, rgba(238, 150, 75, 0.3) 100%);
    border-radius: 0;
}

[data-theme="flow"] .score-item {
    background: linear-gradient(135deg, rgba(0, 255, 65, 0.1) 0%, rgba(0, 204, 51, 0.2) 100%);
}

.score-value {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--text-primary);
}

.score-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}


.learning-module {
    display: none;
    animation: fadeIn 0.5s ease;
}

.learning-module.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}


.card-counter {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 15px;
    font-size: 1rem;
}


#flashcardContainer {
    perspective: 1000px;
    margin-bottom: 20px;
}

.flashcard-wrapper {
    display: flex;
    justify-content: center;
}

.flashcard {
    width: 100%;
    max-width: 500px;
    min-height: 220px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s;
    cursor: pointer;
}

.flashcard.flipped {
    transform: rotateY(180deg);
}

.flashcard-face {
    position: absolute;
    width: 100%;
    height: 100%;
    min-height: 220px;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    border-radius: 16px;
    text-align: center;
}

.flashcard-front {
    background: var(--btn-gradient);
    color: var(--text-on-primary);
}

.flashcard-back {
    background: var(--bg-secondary);
    border: 3px solid var(--color-primary);
    color: var(--color-primary);
    transform: rotateY(180deg);
}

.flashcard-question {
    font-size: 1.2rem;
    line-height: 1.5;
}

.flashcard-answer {
    font-size: 1.5rem;
    font-weight: bold;
}

.flashcard-hint {
    font-size: 0.85rem;
    opacity: 0.7;
    margin-top: 15px;
}


.flashcard-scoring {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.score-btn {
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    color: white;
}

.score-btn.knew {
    background: #28a745;
}

.score-btn.knew:hover {
    background: #218838;
    transform: translateY(-2px);
}

.score-btn.didnt-know {
    background: linear-gradient(135deg, #d86f6f, #a83f3f);
}

.score-btn.didnt-know:hover {
    background: linear-gradient(135deg, #e08080, #b84f4f);
    transform: translateY(-2px);
}


.navigation-btns {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.nav-btn {
    padding: 10px 20px;
    background: var(--bg-glass-dark);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}


.question-box {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
}

.question-box h3 {
    color: var(--color-primary);
    margin-bottom: 10px;
    font-size: 1rem;
}

.question-text {
    font-size: 1rem;
    margin-bottom: 15px;
    line-height: 1.5;
}

.options {
    display: grid;
    gap: 10px;
}

.option {
    padding: 14px 18px;
    background: var(--bg-glass-dark);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    line-height: 1.4;
}

.option:hover {
    border-color: var(--color-primary);
}

.option.correct {
    background: rgba(40, 167, 69, 0.2);
    border-color: #28a745;
}

.option.incorrect {
    background: rgba(255, 107, 107, 0.2);
    border-color: #ff6b6b;
}

.option.disabled {
    pointer-events: none;
}


.matching-container h3 {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.matched-pairs {
    margin-bottom: 20px;
}

.matched-pair {
    display: flex;
    background: rgba(40, 167, 69, 0.15);
    border-radius: 8px;
    margin-bottom: 10px;
    overflow: hidden;
    animation: slideDown 0.3s ease;
    border: 1px solid rgba(40, 167, 69, 0.4);
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.matched-pair .question-side,
.matched-pair .answer-side {
    flex: 1;
    padding: 12px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.matched-pair .question-side {
    background: rgba(40, 167, 69, 0.1);
    border-right: 3px solid #28a745;
}

.matching-game {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.matching-column {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.matching-column h4 {
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.matching-item {
    padding: 14px;
    background: var(--bg-glass-dark);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    line-height: 1.4;
}

.matching-item:hover {
    border-color: var(--color-primary);
}

.matching-item.selected {
    background: linear-gradient(135deg, rgba(126, 242, 156, 0.3) 0%, rgba(62, 166, 106, 0.4) 100%);
    border-color: var(--color-primary);
}

[data-theme="dark"] .matching-item.selected {
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0.3) 100%);
}

[data-theme="flow"] .matching-item.selected {
    background: linear-gradient(135deg, rgba(0, 255, 65, 0.2) 0%, rgba(0, 204, 51, 0.3) 100%);
}

.matching-item.wrong {
    animation: shake 0.5s;
    background: rgba(255, 107, 107, 0.2);
    border-color: #ff6b6b;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}


.completion-screen {
    text-align: center;
    padding: 30px 20px;
}

.trophy {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.completion-screen h2 {
    color: var(--color-primary);
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.completion-screen > p {
    color: var(--text-muted);
    margin-bottom: 25px;
}

.section-results h3 {
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 15px;
}

.section-result-item {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.section-result-item .section-icon {
    font-size: 1.8rem;
    width: 50px;
    text-align: center;
}

.section-result-item .section-info {
    flex: 1;
}

.section-result-item .section-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.section-result-item .section-score {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.section-result-item .section-percent {
    font-size: 1.4rem;
    font-weight: bold;
    min-width: 60px;
    text-align: right;
}

.section-percent.excellent { color: #28a745; }
.section-percent.good { color: var(--color-primary); }
.section-percent.average { color: #ffc107; }
.section-percent.poor { color: #dc3545; }

.section-progress {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 8px;
}

.section-progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.section-progress-fill.excellent { background: #28a745; }
.section-progress-fill.good { background: var(--color-primary); }
.section-progress-fill.average { background: #ffc107; }
.section-progress-fill.poor { background: #dc3545; }


.module-navigation {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 25px;
    flex-wrap: wrap;
}

.finish-row {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

/* ==================== LIBRARY & FAVORITES ==================== */
.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.search-input {
    flex: 1;
    padding: 14px 18px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    transition: all 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    padding: 14px 20px;
    background: var(--btn-gradient);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.2s ease;
}

.search-btn:hover {
    transform: translateY(-2px);
}

.library-grid,
.favorites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
}

.material-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.2s ease;
}

.material-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

.material-card-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 8px;
}

.material-card-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.material-card-actions {
    display: flex;
    gap: 10px;
}

.card-action-btn {
    padding: 8px 14px;
    background: var(--bg-glass-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.card-action-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.card-action-btn.favorite-active {
    background: rgba(244, 211, 94, 0.2);
    border-color: #f4d35e;
    color: #f4d35e;
}


.empty-state {
    text-align: center;
    padding: 50px 20px;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ==================== MODALS ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 20px;
    pointer-events: none;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal {
    background: var(--bg-glass-dark);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 30px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-small {
    max-width: 380px;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 18px;
    transition: all 0.2s ease;
}

.modal-close-btn:hover {
    border-color: #ff6b6b;
    color: #ff6b6b;
}

.modal-title {
    font-family: var(--font-title);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 25px;
    text-align: center;
}


.style-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.style-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.style-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.style-card.selected {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.style-preview {
    width: 100%;
    height: 80px;
    border-radius: 8px;
    margin-bottom: 10px;
    overflow: hidden;
}

.style-preview-basic {
    background: #ffffff;
}

.style-preview-basic .preview-grid {
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, rgba(126, 242, 156, 0.2) 1px, transparent 1px),
        linear-gradient(rgba(126, 242, 156, 0.2) 1px, transparent 1px);
    background-size: 15px 15px;
}

.style-preview-dark {
    background: #0a0a0f;
}

.style-preview-dark .preview-grid {
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, rgba(255,255,255,0.15) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,0.15) 1px, transparent 1px);
    background-size: 15px 15px;
}

.style-preview-pixel {
    position: relative;
    background: #1a1c2c;
}

.style-preview-pixel::before {
    content: "";
    position: absolute;
    inset: -6%;
    background: url('images/pixelbg.png') center / cover no-repeat;
    image-rendering: pixelated;
    filter: blur(1.1px) brightness(0.72) saturate(0.9);
    transform: scale(1.04);
}

.style-preview-pixel::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(12, 14, 24, 0.28) 0%,
        rgba(16, 18, 30, 0.16) 45%,
        rgba(12, 14, 24, 0.35) 78%,
        rgba(8, 10, 18, 0.62) 100%
    );
}

.style-preview-flow {
    background: #0d1117;
}

.style-preview-flow .preview-matrix {
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 8px,
        rgba(0, 255, 65, 0.15) 8px,
        rgba(0, 255, 65, 0.15) 16px
    );
}

.style-name {
    display: block;
    text-align: center;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}


.lang-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lang-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 20px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    text-align: left;
    font-family: var(--font-body);
    color: var(--text-primary);
}

.lang-card:hover {
    border-color: var(--color-primary);
    transform: translateX(4px);
}

.lang-card.active {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.lang-flag {
    font-size: 28px;
}

.lang-name {
    font-size: 16px;
    font-weight: 500;
}


#faqModal .modal {
    max-width: 760px;
    padding: 28px;
    border: 1px solid rgba(120, 140, 170, 0.35);
    background:
        radial-gradient(120% 120% at 0% 0%, rgba(126, 242, 156, 0.14) 0%, rgba(126, 242, 156, 0) 46%),
        radial-gradient(100% 120% at 100% 0%, rgba(78, 138, 255, 0.12) 0%, rgba(78, 138, 255, 0) 44%),
        var(--bg-glass-dark);
}

#faqModal .modal-title {
    margin-bottom: 18px;
    letter-spacing: 0.02em;
}

#faqModal .faq-tabs {
    gap: 10px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

#faqModal .faq-tab {
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
}

#faqModal .faq-tab:hover {
    color: var(--text-primary);
    border-color: rgba(126, 242, 156, 0.7);
}

#faqModal .faq-tab.active {
    background: var(--btn-gradient);
    border-color: transparent;
    color: var(--text-on-primary);
    box-shadow: 0 8px 20px rgba(17, 115, 68, 0.22);
}

#faqModal .faq-content,
#faqModal .guide-content {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

#faqModal .faq-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 14px 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

#faqModal .faq-item.open {
    border-color: rgba(126, 242, 156, 0.65);
    box-shadow: 0 6px 18px rgba(17, 115, 68, 0.15);
}

#faqModal .faq-question {
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.99rem;
    margin: 0;
    line-height: 1.45;
}

#faqModal .faq-toggle::before {
    content: '+';
    font-weight: 800;
    color: var(--color-primary);
    font-size: 1.15rem;
}

#faqModal .faq-item.open .faq-toggle::before {
    content: '-';
}

#faqModal .faq-answer {
    display: none;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
    color: var(--text-primary);
    font-size: 0.94rem;
    line-height: 1.62;
    white-space: pre-line;
}

#faqModal .faq-item.open .faq-answer {
    display: block;
}

[data-theme="dark"] #faqModal .modal {
    border-color: rgba(255, 255, 255, 0.18);
    background:
        radial-gradient(120% 120% at 0% 0%, rgba(128, 198, 255, 0.09) 0%, rgba(128, 198, 255, 0) 50%),
        radial-gradient(110% 130% at 100% 0%, rgba(39, 174, 96, 0.1) 0%, rgba(39, 174, 96, 0) 46%),
        rgba(13, 16, 24, 0.95);
}

[data-theme="dark"] #faqModal .faq-item {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.14);
}

[data-theme="dark"] #faqModal .faq-item.open {
    border-color: rgba(126, 242, 156, 0.75);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.32);
}

[data-theme="pixel"] #faqModal .modal {
    border-radius: 0;
    border: 4px solid #263047;
    background:
        linear-gradient(180deg, rgba(26, 32, 50, 0.96) 0%, rgba(21, 26, 42, 0.98) 100%);
    box-shadow: 7px 7px 0 rgba(8, 10, 18, 0.8);
}

[data-theme="pixel"] #faqModal .faq-tabs {
    border-bottom-color: rgba(244, 211, 94, 0.35);
}

[data-theme="pixel"] #faqModal .faq-tab {
    border-radius: 0;
    border-width: 2px;
    text-transform: none;
    letter-spacing: 0.01em;
    font-size: 0.9rem;
    font-family: var(--font-body);
}

[data-theme="pixel"] #faqModal .faq-tab.active {
    box-shadow: 3px 3px 0 rgba(14, 16, 24, 0.85);
}

[data-theme="pixel"] #faqModal .faq-item {
    border-radius: 0;
    border: 3px solid #31405f;
    background: rgba(17, 21, 35, 0.95);
    box-shadow: 3px 3px 0 rgba(10, 12, 18, 0.75);
}

[data-theme="pixel"] #faqModal .faq-item.open {
    border-color: #7ef29c;
    box-shadow: 4px 4px 0 rgba(10, 12, 18, 0.9);
}

[data-theme="pixel"] #faqModal .faq-question {
    font-family: var(--font-body);
    font-size: 0.84rem;
    letter-spacing: 0;
    color: #f0f5ff;
}

[data-theme="pixel"] #faqModal .faq-answer {
    font-family: var(--font-body);
    color: #dce5ff;
    border-top-color: rgba(126, 242, 156, 0.35);
}

[data-theme="flow"] #faqModal .modal {
    border-color: rgba(0, 255, 65, 0.5);
    background:
        linear-gradient(135deg, rgba(3, 20, 10, 0.95) 0%, rgba(7, 26, 15, 0.96) 100%);
    box-shadow:
        inset 0 0 35px rgba(0, 255, 65, 0.08),
        0 0 26px rgba(0, 255, 65, 0.24);
}

[data-theme="flow"] #faqModal .faq-tabs {
    border-bottom-color: rgba(0, 255, 65, 0.4);
}

[data-theme="flow"] #faqModal .faq-tab {
    border-color: rgba(0, 255, 65, 0.45);
    background: rgba(0, 255, 65, 0.08);
    color: #b8ffc8;
    font-family: var(--font-body);
    letter-spacing: 0;
    border-radius: 10px;
    padding: 10px 18px;
}

[data-theme="flow"] #faqModal .faq-tab.active {
    background: rgba(0, 255, 65, 0.85);
    color: #03110a;
    box-shadow: 0 0 16px rgba(0, 255, 65, 0.42);
}

[data-theme="flow"] #faqModal .faq-item {
    border-color: rgba(0, 255, 65, 0.35);
    background: rgba(0, 28, 10, 0.72);
}

[data-theme="flow"] #faqModal .faq-item.open {
    border-color: rgba(0, 255, 65, 0.7);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.18);
}

[data-theme="flow"] #faqModal .faq-question {
    color: #d7ffe1;
    font-family: var(--font-body);
    letter-spacing: 0;
}

[data-theme="flow"] #faqModal .faq-answer {
    color: #ceffd9;
    border-top-color: rgba(0, 255, 65, 0.3);
    font-family: var(--font-body);
}


.auth-modal {
    max-width: 400px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-input {
    padding: 14px 18px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.auth-switch {
    text-align: center;
    margin-top: 15px;
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-switch-link {
    color: var(--color-primary);
    cursor: pointer;
    font-weight: 600;
}

.auth-switch-link:hover {
    text-decoration: underline;
}
.auth-hint{
    margin: 0;
    margin-bottom: 15px; 
    font-size: 14px; 
    color: #666; 
    text-align: left;
}

.auth-modal .form-select.is-none-selected {
    background-color: rgba(140, 146, 158, 0.2);
    border-color: rgba(140, 146, 158, 0.5);
    color: #6a7280;
}

.auth-modal .form-select option[disabled],
.auth-modal .form-select option[value="none"] {
    color: #838b98;
    background: #edf0f4;
}

[data-theme="dark"] .auth-modal .form-select.is-none-selected {
    background-color: rgba(130, 138, 152, 0.2);
    border-color: rgba(130, 138, 152, 0.45);
    color: #9aa3b3;
}

[data-theme="dark"] .auth-modal .form-select option[disabled],
[data-theme="dark"] .auth-modal .form-select option[value="none"] {
    color: #9aa3b3;
    background: #141b28;
}

[data-theme="pixel"] .auth-modal .form-select.is-none-selected {
    background-color: rgba(140, 148, 168, 0.18);
    border-color: rgba(140, 148, 168, 0.55);
    color: #c4ccdf;
}

[data-theme="flow"] .auth-modal .form-select.is-none-selected {
    background-color: rgba(136, 150, 132, 0.14);
    border-color: rgba(136, 150, 132, 0.4);
    color: #b5c3b1;
}

.profile-modal {
    max-width: 400px;
}

.profile-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.profile-avatar-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.profile-avatar-large {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 3px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.avatar-placeholder {
    font-size: 44px;
    font-weight: bold;
    color: var(--text-muted);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-info {
    width: 100%;
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 18px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.info-value {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}


.module-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 25px;
}

.module-option {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 16px 18px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.module-option:hover {
    border-color: var(--color-primary);
}

.module-option input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

.option-icon {
    font-size: 1.5rem;
}

.option-text {
    flex: 1;
    font-weight: 500;
}

.modal-buttons {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* ==================== TOAST NOTIFICATIONS ==================== */
.toast-container {
    position: fixed;
    top: 90px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-glass-dark);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    min-width: 300px;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    transform: translateX(120%);
    animation: toastSlideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
    position: relative;
    overflow: hidden;
}

.toast.toast-out {
    animation: toastSlideOut 0.3s ease forwards;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-icon {
    font-size: 1.3em;
    flex-shrink: 0;
}

.toast-message {
    color: var(--text-primary);
    font-size: 0.95em;
    line-height: 1.4;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--color-primary);
    animation: toastProgress 5s linear forwards;
}

.toast.success { border-color: rgba(40, 167, 69, 0.6); }
.toast.success .toast-icon { color: #28a745; }
.toast.success .toast-progress { background: #28a745; }

.toast.error { border-color: rgba(220, 53, 69, 0.6); }
.toast.error .toast-icon { color: #dc3545; }
.toast.error .toast-progress { background: #dc3545; }

.toast.warning { border-color: rgba(255, 193, 7, 0.6); }
.toast.warning .toast-icon { color: #ffc107; }
.toast.warning .toast-progress { background: #ffc107; }

[data-theme="basic"] .toast {
    background: rgba(250, 254, 251, 0.92);
    border-color: rgba(76, 175, 80, 0.3);
    box-shadow: 0 18px 30px rgba(28, 72, 46, 0.18);
}

[data-theme="basic"] .toast-message {
    color: #1f2a20;
}

[data-theme="dark"] .toast {
    background: rgba(11, 15, 24, 0.94);
    border-color: rgba(164, 191, 255, 0.35);
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.45);
}

[data-theme="dark"] .toast-message {
    color: #e9f0ff;
}

[data-theme="dark"] .toast.success {
    border-color: rgba(70, 210, 125, 0.55);
}

[data-theme="dark"] .toast.error {
    border-color: rgba(255, 114, 114, 0.55);
}

[data-theme="dark"] .toast.warning {
    border-color: rgba(255, 211, 110, 0.55);
}

[data-theme="pixel"] .toast {
    background: #1d2027;
    border: 3px solid #4b515d;
    border-radius: 0;
    box-shadow:
        0 0 0 2px #10131a,
        4px 4px 0 rgba(10, 12, 18, 0.9);
    padding: 12px 14px 14px;
    image-rendering: pixelated;
    animation: toastSlideIn 0.25s steps(6, end) forwards;
}

[data-theme="pixel"] .toast-content {
    gap: 10px;
    align-items: flex-start;
}

[data-theme="pixel"] .toast-icon {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0;
    border: 2px solid #2a303d;
    background: #10151f;
    box-shadow: inset -2px -2px 0 rgba(0, 0, 0, 0.35);
    flex-shrink: 0;
}

[data-theme="pixel"] .toast-icon::before {
    content: 'i';
    font-family: var(--font-title);
    font-size: 0.72rem;
    line-height: 1;
    color: #7ec8ff;
    text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.65);
}

[data-theme="pixel"] .toast.success .toast-icon::before {
    content: '✓';
    color: #7ef29c;
}

[data-theme="pixel"] .toast.error .toast-icon::before {
    content: '✕';
    color: #ff9d9d;
}

[data-theme="pixel"] .toast.warning .toast-icon::before {
    content: '!';
    color: #ffe17e;
}

[data-theme="pixel"] .toast-message {
    font-family: 'PixeloidSans', 'Monocraft', 'Segoe UI', sans-serif;
    font-size: 1rem;
    line-height: 1.45;
    letter-spacing: 0.01em;
    color: #f2f6ff;
    text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.5);
}

[data-theme="pixel"] .toast.success .toast-message {
    color: #ffe86d;
}

[data-theme="pixel"] .toast.error .toast-message {
    color: #ffd0d0;
}

[data-theme="pixel"] .toast.warning .toast-message {
    color: #fff0be;
}

[data-theme="pixel"] .toast-progress {
    height: 4px;
    border-top: 1px solid rgba(0, 0, 0, 0.35);
}

[data-theme="flow"] .toast {
    background: rgba(2, 23, 10, 0.94);
    border-color: rgba(0, 255, 65, 0.45);
    box-shadow:
        inset 0 0 24px rgba(0, 255, 65, 0.1),
        0 0 20px rgba(0, 255, 65, 0.24);
}

[data-theme="flow"] .toast-message {
    color: #d3ffd9;
    font-family: var(--font-title);
    letter-spacing: 0.03em;
}

[data-theme="flow"] .toast.success {
    border-color: rgba(0, 255, 65, 0.62);
}

[data-theme="flow"] .toast.success .toast-icon {
    color: #7eff9c;
}

[data-theme="flow"] .toast.success .toast-progress {
    background: #7eff9c;
}

[data-theme="flow"] .toast.error {
    border-color: rgba(255, 77, 77, 0.65);
}

[data-theme="flow"] .toast.error .toast-icon {
    color: #ff6f6f;
}

[data-theme="flow"] .toast.error .toast-progress {
    background: #ff6f6f;
}

[data-theme="flow"] .toast.warning {
    border-color: rgba(255, 214, 84, 0.65);
}

[data-theme="flow"] .toast.warning .toast-icon {
    color: #ffd95a;
}

[data-theme="flow"] .toast.warning .toast-progress {
    background: #ffd95a;
}

@keyframes toastSlideIn {
    0% { transform: translateX(120%); opacity: 0; }
    100% { transform: translateX(0); opacity: 1; }
}

@keyframes toastSlideOut {
    0% { transform: translateX(0); opacity: 1; }
    100% { transform: translateX(120%); opacity: 0; }
}

@keyframes toastProgress {
    0% { width: 100%; }
    100% { width: 0%; }
}

/* ==================== LIBRARY TABS ==================== */
.library-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 15px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: transparent;
    border: 2px solid transparent;
    border-radius: 12px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.tab-btn.active {
    color: var(--color-primary);
    background: var(--bg-secondary);
    border-color: var(--color-primary);
}

.tab-icon {
    font-size: 1.1em;
}

.library-actions {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    align-items: stretch;
}

.library-actions .search-box {
    flex: 1;
    margin-bottom: 0;
}

.btn-upload {
    white-space: nowrap;
    padding: 14px 24px;
}

/* ==================== UPLOAD PAGE ==================== */
.upload-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238a8a9a' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    padding-right: 40px;
}

.upload-textarea {
    min-height: 250px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
}

/* ==================== QUICKLOOK MODAL ==================== */
.quicklook-modal {
    max-width: 600px;
}

.quicklook-header {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.quicklook-icon {
    width: 70px;
    height: 70px;
    background: var(--btn-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.quicklook-icon svg {
    width: 36px;
    height: 36px;
    fill: var(--text-on-primary);
}

.quicklook-info {
    flex: 1;
    min-width: 0;
}

.quicklook-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 10px;
    word-wrap: break-word;
}

.quicklook-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    color: var(--text-muted);
}

.meta-icon {
    font-size: 1em;
}

.category-badge {
    background: var(--bg-secondary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    color: var(--color-primary);
    border: 1px solid var(--border-color);
}

.quicklook-preview {
    margin-bottom: 20px;
}

.quicklook-preview h3 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.preview-list {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 15px;
    max-height: 250px;
    overflow-y: auto;
}

.preview-item {
    display: flex;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.preview-item:last-child {
    border-bottom: none;
}

.preview-number {
    color: var(--color-primary);
    font-weight: 600;
    min-width: 30px;
}

.preview-content {
    flex: 1;
}

.preview-question {
    color: var(--text-primary);
    margin-bottom: 4px;
    font-size: 14px;
}

.preview-answer {
    color: var(--text-muted);
    font-size: 13px;
}

.preview-more {
    text-align: center;
    padding: 15px;
    color: var(--text-muted);
    font-style: italic;
    font-size: 13px;
}

.quicklook-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* ==================== MATERIAL CARD ENHANCED ==================== */
.material-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.2s ease;
    cursor: pointer;
    position: relative;
}

.material-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.material-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.material-card-title {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0;
    flex: 1;
    padding-right: 10px;
}

.material-card-badge {
    font-size: 1.2rem;
}

.material-card-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.material-card-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.material-card-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.card-action-btn {
    padding: 8px 14px;
    background: var(--bg-glass-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s ease;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-action-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.card-action-btn.favorite-active {
    background: rgba(244, 211, 94, 0.2);
    border-color: #f4d35e;
    color: #f4d35e;
}

.card-action-btn.delete-btn:hover {
    border-color: #dc3545;
    color: #dc3545;
}


.modal-text {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

/* ==================== HOME PAGE ==================== */
.home-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.home-section {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    padding: 25px;
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-title);
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.action-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.action-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.action-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.action-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.action-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
}


.ent-section {
    background: linear-gradient(135deg, var(--bg-glass) 0%, rgba(126, 242, 156, 0.1) 100%);
    -webkit-tap-highlight-color: transparent;
}

[data-theme="dark"] .ent-section {
    background: linear-gradient(135deg, var(--bg-glass) 0%, rgba(255, 255, 255, 0.05) 100%);
}

.ent-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.ent-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ent-card:hover {
    border-color: var(--color-primary);
    transform: translateX(4px);
}

.ent-icon {
    font-size: 1.5rem;
}

.ent-card span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.ent-card-profile {
    border-color: var(--color-primary-dark);
}

.ent-card-full {
    grid-column: span 3;
    justify-content: center;
    background: var(--btn-gradient);
    box-shadow: var(--shadow-md);
}

.ent-card-full span {
    color: var(--text-on-primary);
    font-weight: 600;
}

.ent-card-full .ent-icon-svg svg {
    fill: var(--text-on-primary);
}


[data-theme="dark"] .ent-card-full {
    background: linear-gradient(135deg, #ffffff 0%, #d0d0d0 100%);
}

[data-theme="dark"] .ent-card-full .ent-icon-svg svg {
    fill: #0a0a0f;
}

[data-theme="pixel"] .ent-card-full {
    background: linear-gradient(180deg, #f4d35e 0%, #d4a543 100%);
    border: 3px solid #ee964b;
}

[data-theme="pixel"] .ent-card-full .ent-icon-svg svg {
    fill: #1a1c2c;
}

[data-theme="flow"] .ent-card-full {
    background: linear-gradient(135deg, #00ff41 0%, #00cc33 100%);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
}

[data-theme="flow"] .ent-card-full .ent-icon-svg svg {
    fill: #0a0a0f;
}

/* ==================== ENT SECTION DISABLED STATE ==================== */
.ent-disabled {
    position: relative;
    overflow: hidden;
}

.ent-disabled .ent-grid {
    filter: grayscale(100%) opacity(0.5);
    pointer-events: none;
}

.ent-disabled .section-title {
    filter: grayscale(100%) opacity(0.6);
}

.ent-development-banner {
    position: absolute;
    top: 50%;
    left: -30%;
    width: 160%;
    transform: translateY(-50%) rotate(-15deg);
    background: repeating-linear-gradient(
        45deg,
        rgba(128, 128, 128, 0.9),
        rgba(128, 128, 128, 0.9) 20px,
        rgba(100, 100, 100, 0.9) 20px,
        rgba(100, 100, 100, 0.9) 40px
    );
    color: white;
    text-align: center;
    padding: 12px 0;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    z-index: 10;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    user-select: none;
    -webkit-user-select: none;
}

@media (max-width: 768px) {
    .ent-development-banner {
        font-size: 0.95rem;
        letter-spacing: 2px;
        padding: 10px 0;
    }
}

@media (max-width: 480px) {
    .ent-development-banner {
        font-size: 0.8rem;
        letter-spacing: 1.4px;
        padding: 9px 0;
    }
}


[data-theme="dark"] .ent-development-banner {
    background: repeating-linear-gradient(
        45deg,
        rgba(60, 60, 70, 0.95),
        rgba(60, 60, 70, 0.95) 20px,
        rgba(45, 45, 55, 0.95) 20px,
        rgba(45, 45, 55, 0.95) 40px
    );
    color: rgba(255, 255, 255, 0.8);
}


[data-theme="flow"] .ent-development-banner {
    background: linear-gradient(90deg, 
        rgba(0, 40, 10, 0.9) 0%,
        rgba(0, 90, 20, 0.9) 50%,
        rgba(0, 40, 10, 0.9) 100%
    );
    color: #c8ffd8;
    text-shadow: 
        0 1px 0 rgba(0, 0, 0, 0.8),
        0 0 6px rgba(0, 255, 80, 0.6);
    animation: flow-banner-glitch 3s infinite;
    border-top: 1px solid rgba(0, 255, 65, 0.4);
    border-bottom: 1px solid rgba(0, 255, 65, 0.4);
}

[data-theme="flow"] .ent-development-banner::before {
    opacity: 0.45;
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent,
        rgba(0, 255, 65, 0.4),
        transparent
    );
    animation: flow-banner-scan 2s infinite;
}

@keyframes flow-banner-glitch {
    0%, 90%, 100% { 
        opacity: 1;
        transform: translateY(-50%) rotate(-15deg);
    }
    92% { 
        opacity: 0.8;
        transform: translateY(-50%) rotate(-15deg) translateX(2px);
    }
    94% { 
        opacity: 1;
        transform: translateY(-50%) rotate(-15deg) translateX(-2px);
    }
}

@keyframes flow-banner-scan {
    0% { left: -100%; }
    100% { left: 200%; }
}


[data-theme="pixel"] .ent-development-banner {
    background: #1a1c2c;
    border: 4px solid #f4d35e;
    color: #f4d35e;
    font-family: var(--font-pixel, monospace);
    image-rendering: pixelated;
    box-shadow: 
        4px 4px 0 #ee964b,
        inset 0 0 0 2px #1a1c2c;
}

[data-theme="pixel"] .ent-development-banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(45deg, transparent 45%, rgba(244, 211, 94, 0.3) 45%, rgba(244, 211, 94, 0.3) 55%, transparent 55%),
        linear-gradient(-45deg, transparent 45%, rgba(244, 211, 94, 0.3) 45%, rgba(244, 211, 94, 0.3) 55%, transparent 55%);
    background-size: 20px 20px;
    animation: pixel-crack 4s infinite;
    pointer-events: none;
}

@keyframes pixel-crack {
    0%, 100% { opacity: 0; }
    25% { opacity: 1; }
    50% { opacity: 0.5; }
    75% { opacity: 1; }
}

[data-theme="pixel"] .ent-disabled .ent-grid {
    filter: grayscale(80%) opacity(0.6) contrast(0.9);
}

/* ==================== LIBRARY FILTERS ==================== */
.library-filters {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.filter-tabs {
    display: flex;
    gap: 5px;
    background: var(--bg-secondary);
    padding: 5px;
    border-radius: 12px;
}

.filter-tab {
    padding: 10px 18px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.filter-tab:hover {
    color: var(--text-primary);
}

.filter-tab.active {
    background: var(--btn-gradient);
    color: var(--text-on-primary);
}

.subject-filter {
    margin-bottom: 15px;
}

.subject-filter select {
    max-width: 300px;
}

/* ==================== GUESS GAME PAGE ==================== */
.guess-game-container {
    max-width: 600px;
    margin: 0 auto;
}

.guess-start-screen,
.guess-play-screen,
.guess-result-screen {
    text-align: center;
    padding: 20px;
}

.guess-intro {
    margin-bottom: 30px;
}

.guess-intro-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

.guess-intro h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.guess-intro p {
    color: var(--text-secondary);
}

.guess-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 30px;
}

.guess-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.guess-stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.guess-stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.guess-level-indicator {
    display: inline-block;
    padding: 8px 16px;
    background: var(--color-primary-alpha, rgba(76, 175, 80, 0.1));
    border-radius: 20px;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 20px;
}

.guess-facts-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.guess-fact-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 20px 24px;
    position: relative;
    overflow: hidden;
}

.fact-level-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.guess-fact-text {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin: 0;
}


.fact-slide-in {
    animation: factSlideIn 0.5s ease-out forwards;
    opacity: 0;
    transform: translateY(-20px);
}

@keyframes factSlideIn {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}


.fact-level-1 {
    border-left: 4px solid #4CAF50;
}
.fact-level-2 {
    border-left: 4px solid #FF9800;
}
.fact-level-3 {
    border-left: 4px solid #f44336;
}


[data-theme="flow"] .guess-fact-card {
    background: rgba(0, 255, 65, 0.05);
    border: 1px solid rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .guess-fact-text.decrypting {
    font-family: 'Courier New', monospace;
    color: #00ff41;
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}

[data-theme="flow"] .fact-slide-in {
    animation: flowDecryptCard 0.8s ease-out forwards;
}

@keyframes flowDecryptCard {
    0% {
        opacity: 0;
        transform: scale(0.95);
        box-shadow: 0 0 30px rgba(0, 255, 65, 0.8), inset 0 0 20px rgba(0, 255, 65, 0.3);
    }
    50% {
        box-shadow: 0 0 50px rgba(0, 255, 65, 0.6), inset 0 0 30px rgba(0, 255, 65, 0.2);
    }
    100% {
        opacity: 1;
        transform: scale(1);
        box-shadow: 0 0 20px rgba(0, 255, 65, 0.2);
    }
}


[data-theme="pixel"] .guess-fact-card {
    border-radius: 0;
    border: 4px solid #1a1c2c;
    box-shadow: 4px 4px 0 #1a1c2c;
}

[data-theme="pixel"] .guess-fact-card.pixel-assembling {
    animation: pixelAssemble 0.8s steps(12) forwards;
}

@keyframes pixelAssemble {
    0% {
        clip-path: polygon(0 0, 100% 0, 100% 0%, 0 0%);
        opacity: 0.5;
    }
    8.33% {
        clip-path: polygon(0 0, 100% 0, 100% 8.33%, 0 8.33%);
    }
    16.66% {
        clip-path: polygon(0 0, 100% 0, 100% 16.66%, 0 16.66%);
    }
    25% {
        clip-path: polygon(0 0, 100% 0, 100% 25%, 0 25%);
    }
    33.33% {
        clip-path: polygon(0 0, 100% 0, 100% 33.33%, 0 33.33%);
    }
    41.66% {
        clip-path: polygon(0 0, 100% 0, 100% 41.66%, 0 41.66%);
    }
    50% {
        clip-path: polygon(0 0, 100% 0, 100% 50%, 0 50%);
        opacity: 0.75;
    }
    58.33% {
        clip-path: polygon(0 0, 100% 0, 100% 58.33%, 0 58.33%);
    }
    66.66% {
        clip-path: polygon(0 0, 100% 0, 100% 66.66%, 0 66.66%);
    }
    75% {
        clip-path: polygon(0 0, 100% 0, 100% 75%, 0 75%);
    }
    83.33% {
        clip-path: polygon(0 0, 100% 0, 100% 83.33%, 0 83.33%);
    }
    91.66% {
        clip-path: polygon(0 0, 100% 0, 100% 91.66%, 0 91.66%);
    }
    100% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
        opacity: 1;
    }
}


[data-theme="pixel"] .guess-fact-card.pixel-assembling::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, #f4d35e, transparent);
    animation: pixelScanline 0.8s steps(12) forwards;
}

@keyframes pixelScanline {
    0% { top: 0%; }
    100% { top: 100%; }
}


[data-theme="dark"] .guess-fact-card {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .fact-slide-in {
    animation: darkFactSlide 0.5s ease-out forwards;
}

@keyframes darkFactSlide {
    0% {
        opacity: 0;
        transform: translateY(-20px) scale(0.98);
        box-shadow: 0 -10px 30px rgba(255, 255, 255, 0.1);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        box-shadow: none;
    }
}

.guess-input-area {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.guess-input {
    flex: 1;
    text-align: center;
    font-size: 1.1rem;
}

.guess-hints {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.guess-result-icon {
    font-size: 5rem;
    margin-bottom: 16px;
}

.guess-result-title {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.guess-result-answer {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.guess-result-info {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.guess-result-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
}


[data-theme="pixel"] .guess-level-indicator {
    border-radius: 0;
    border: 4px solid var(--text-primary);
}

[data-theme="pixel"] .guess-stat-value {
    font-family: var(--font-pixel, 'Press Start 2P', monospace);
}

[data-theme="flow"] .guess-stat-value {
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}










.online-indicator {
    display: inline-block;
    margin-left: 8px;
    font-size: 0.8rem;
    vertical-align: middle;
}

/* ==================== CLASSROOM SECTION ==================== */
.classroom-section {
    margin-top: 2rem;
}

.classroom-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.classroom-stats {
    display: flex;
    gap: 1rem;
}

.recent-activity {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 12px;
}

.recent-activity h3 {
    margin: 0 0 1rem 0;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-primary);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
}

.activity-icon {
    font-size: 1.2rem;
}

.activity-content {
    flex: 1;
    font-size: 0.9rem;
}

.activity-time {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ==================== ACHIEVEMENTS ==================== */
.profile-achievements {
    margin-top: 2rem;
}

.profile-achievements h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
}

.achievement-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    text-align: center;
    transition: transform 0.2s ease;
}

.achievement-card:hover {
    transform: translateY(-2px);
}

.achievement-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.achievement-card.unlocked .achievement-icon {
    opacity: 1;
}

.achievement-card.locked .achievement-icon {
    opacity: 0.3;
}

.achievement-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.achievement-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.2;
}

/* ==================== PROFILE PAGE ==================== */
.profile-page-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.profile-details {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 20px;
}

.profile-field {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.profile-field:last-child {
    border-bottom: none;
}

.profile-field label {
    color: var(--text-muted);
    font-size: 14px;
}

.profile-field span {
    color: var(--text-primary);
    font-weight: 500;
}

.profile-field.editable select {
    max-width: 200px;
}

.profile-field-row {
    flex-wrap: wrap;
}

.profile-selects {
    display: flex;
    gap: 10px;
}

.profile-selects select {
    width: 80px;
}

.profile-stats {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 20px;
}

.profile-stats h3 {
    color: var(--color-primary);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.stat-card {
    background: var(--bg-glass-dark);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==================== AUTH STEPS ==================== */
.auth-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 25px;
}

.step {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--text-muted);
    font-size: 14px;
    transition: all 0.3s ease;
}

.step.active {
    background: var(--btn-gradient);
    border-color: var(--color-primary);
    color: var(--text-on-primary);
}

.step.completed {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--text-on-primary);
}

.step-line {
    width: 40px;
    height: 3px;
    background: var(--border-color);
}

/* ==================== MULTI-STEP FORM ==================== */
.form-step {
    animation: fadeIn 0.3s ease;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.step-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

/* ==================== UPLOAD TYPE MODAL ==================== */
.upload-type-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.upload-type-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.upload-type-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.upload-type-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.upload-type-card span {
    font-weight: 600;
    color: var(--text-primary);
}

/* ==================== SUBJECT ACTION MODAL ==================== */
.subject-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.subject-action-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.subject-action-card:hover {
    border-color: var(--color-primary);
    transform: translateX(4px);
}

.subject-action-card .action-icon {
    font-size: 1.8rem;
    margin-bottom: 0;
}

.subject-action-card span {
    font-weight: 600;
    color: var(--text-primary);
    display: block;
}

.subject-action-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
}

/* ==================== MATERIAL ACTION MODAL ==================== */
.material-actions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.material-action-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 25px 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.material-action-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.material-action-card .action-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.material-action-card span {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* ==================== FAQ TABS ==================== */
.faq-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.faq-tab {
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.faq-tab:hover {
    color: var(--text-primary);
}

.faq-tab.active {
    background: var(--btn-gradient);
    color: var(--text-on-primary);
}

.guide-content {
    display: flex;
    flex-direction: column;
    gap: 14px;
    line-height: 1.6;
}

.guide-step {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 0;
}

.guide-step h4 {
    color: var(--color-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.guide-step p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==================== MODAL LARGE ==================== */
.modal-large {
    max-width: 600px;
}

/* ==================== MODAL MEDIUM ==================== */
.modal-medium {
    max-width: 450px;
}

/* ==================== TEST DETAILS MODAL ==================== */
.test-details-modal {
    text-align: center;
}

.test-details-header {
    margin-bottom: 24px;
}

.test-details-category {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    background: var(--color-primary-alpha, rgba(76, 175, 80, 0.1));
    border-radius: 20px;
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.test-details-category svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    margin-right: 6px;
}

.test-details-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.test-details-author-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
    margin-bottom: 20px;
}

.test-author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    overflow: hidden;
}

.test-author-avatar.avatar-letter {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    font-weight: 700;
    font-size: 1.3rem;
}

.test-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.test-author-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.test-author-name {
    font-weight: 600;
    color: var(--text-primary);
}

.test-author-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.test-details-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 24px;
}

.test-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.test-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.test-stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.test-details-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.test-details-actions .btn-large {
    padding: 16px 24px;
    font-size: 1.1rem;
}

.test-detail-secondary-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.btn-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    padding: 0 !important;
    border-radius: 50% !important;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color) !important;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--text-secondary);
    transition: fill 0.2s ease;
}

.btn-icon:hover {
    border-color: var(--color-primary) !important;
    transform: scale(1.1);
    background: var(--color-primary-alpha, rgba(76, 175, 80, 0.1));
}

.btn-icon:hover svg {
    fill: var(--color-primary);
}

.btn-icon.active {
    background: var(--color-primary-alpha, rgba(76, 175, 80, 0.1));
    border-color: var(--color-primary) !important;
}

.btn-icon.active svg {
    fill: var(--color-primary);
}

#testDetailFavoriteBtn:hover svg,
#testDetailFavoriteBtn.active svg {
    fill: #ffc107;
}

#testDetailLikeBtn:hover svg,
#testDetailLikeBtn.active svg {
    fill: #ff6b81;
}

#testDetailFavoriteBtn.active {
    background: rgba(255, 193, 7, 0.15);
    border-color: #ffc107 !important;
}

#testDetailLikeBtn.active {
    background: rgba(255, 107, 129, 0.15);
    border-color: #ff6b81 !important;
}


[data-theme="dark"] .test-details-author-card {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="pixel"] .test-details-modal {
    border-radius: 0;
}

[data-theme="pixel"] .test-details-category {
    border-radius: 0;
    border: 2px solid var(--color-primary);
}

[data-theme="pixel"] .test-details-author-card {
    border-radius: 0;
    border: 2px solid var(--text-secondary);
}

[data-theme="flow"] .test-details-author-card {
    background: rgba(0, 255, 65, 0.05);
    border: 1px solid rgba(0, 255, 65, 0.2);
}

[data-theme="flow"] .test-stat-value {
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
}

/* ==================== EDITOR FORM ==================== */
.editor-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ==================== TEST EDITOR ==================== */
.test-questions {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 15px;
}

.test-question-item {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.test-question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.test-question-header h4 {
    color: var(--color-primary);
}

.test-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.test-option {
    display: flex;
    align-items: center;
    gap: 10px;
}

.test-option input[type="text"] {
    flex: 1;
}

.test-option input[type="radio"] {
    accent-color: var(--color-primary);
}

.profile-school {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==================== CLASSMATES PAGE ==================== */
.classmates-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.class-badge {
    display: flex;
    align-items: center;
    gap: 10px;
}

.class-school {
    font-weight: 500;
    color: var(--text-primary);
}

.class-name {
    background: var(--btn-gradient);
    color: var(--text-on-primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

.classmates-count {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.classmates-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.classmate-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.2s ease;
}

.classmate-item:hover {
    border-color: var(--color-primary);
}

.classmate-item.current-user {
    background: linear-gradient(135deg, rgba(126, 242, 156, 0.1) 0%, rgba(62, 166, 106, 0.15) 100%);
    border-color: var(--color-primary);
}

[data-theme="dark"] .classmate-item.current-user {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.1) 100%);
}

.classmate-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--btn-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--text-on-primary);
    overflow: hidden;
}

.classmate-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.classmate-info {
    flex: 1;
}

.classmate-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.you-badge {
    font-size: 0.75rem;
    font-weight: normal;
    color: var(--color-primary);
}

.classmate-subjects {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    
    * {
        box-sizing: border-box;
    }

    body {
        font-size: 14px;
        line-height: 1.4;
    }

    .container {
        padding: 15px;
        max-width: 100%;
    }

    .page-header {
        margin-bottom: 20px;
    }

    .page-title {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }

    .global-header {
        padding: 0 15px;
        height: 60px;
    }
    
    [data-theme="basic"] .logo-text,
    [data-theme="dark"] .logo-text {
        font-size: 1.9rem;
    }

    [data-theme="flow"] .logo-text {
        font-size: 1.7rem;
    }
    
    .side-panel {
        width: 100%;
        border-radius: 0;
    }
    
    .main-title {
        font-size: clamp(3rem, 18vw, 6rem);
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .btn-start {
        padding: 15px 35px;
        font-size: 16px;
    }
    
    .page-content {
        padding: 80px 15px 20px;
    }
    
    .container {
        padding: 20px;
        border-radius: 16px;
    }
    
    .page-header {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .page-title {
        font-size: 1.3rem;
    }
    
    .action-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .action-card {
        padding: 15px 20px;
        display: flex;
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 15px;
    }
    
    .action-card h3 {
        font-size: 1rem;
        margin-bottom: 2px;
    }
    
    .action-card p {
        font-size: 0.8rem;
    }
    
    .action-icon,
    .action-icon-svg {
        font-size: 2rem;
        margin-bottom: 0;
    }
    
    .action-icon-svg svg {
        width: 40px;
        height: 40px;
    }
    
    .action-card-content {
        flex: 1;
    }
    
    
    .ent-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .ent-card-full {
        grid-column: span 1;
        width: 100%;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .feature-card {
        padding: 18px 15px;
    }
    
    .feature-icon {
        font-size: 2.2rem;
    }
    
    .feature-title {
        font-size: 0.95rem;
    }
    
    .feature-desc {
        font-size: 0.8rem;
    }
    
    
    .library-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    
    .library-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .tab-btn {
        padding: 10px 15px;
        font-size: 13px;
        white-space: nowrap;
    }
    
    .library-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn-upload {
        width: 100%;
        justify-content: center;
    }
    
    
    .quicklook-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .quicklook-meta {
        justify-content: center;
    }
    
    .quicklook-actions {
        flex-direction: column;
    }
    
    .quicklook-actions .btn {
        width: 100%;
    }
    
    .matching-game {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .matched-pair {
        flex-direction: column;
    }
    
    .matched-pair .question-side {
        border-right: none;
        border-bottom: 3px solid #28a745;
    }
    
    .modal {
        padding: 25px 20px;
        margin: 10px;
        max-height: 85vh;
    }
    
    .modal-overlay {
        padding: 10px;
    }
    
    .style-grid {
        gap: 10px;
    }
    
    .style-preview {
        height: 60px;
    }
    
    .toast-container {
        right: 10px;
        left: 10px;
        top: 70px;
    }
    
    .toast {
        min-width: auto;
        max-width: none;
    }
    
    
    .input-actions {
        flex-direction: column;
    }
    
    .mini-btn {
        width: 100%;
        justify-content: center;
    }
    
    
    .material-card-actions {
        flex-direction: column;
    }
    
    .card-action-btn {
        width: 100%;
        justify-content: center;
    }
    
    
    .score-board {
        gap: 10px;
    }
    
    .score-item {
        padding: 10px 15px;
        min-width: 70px;
    }
    
    .score-value {
        font-size: 1.2rem;
    }
    
    
    .action-grid {
        grid-template-columns: 1fr;
    }
    
    .ent-grid {
        grid-template-columns: 1fr;
    }
    
    .ent-card-full {
        grid-column: span 1;
    }
    
    








    
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-field {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .profile-field.editable select {
        max-width: 100%;
        width: 100%;
    }
    
    .profile-selects {
        width: 100%;
    }
    
    .profile-selects select {
        flex: 1;
    }
    
    
    .auth-steps {
        transform: scale(0.9);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    
    .library-filters {
        flex-direction: column;
    }
    
    .filter-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    
    .material-actions-grid {
        grid-template-columns: 1fr;
    }
    
    
    .classmates-info {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .classmate-item {
        padding: 12px;
    }
    
    .classmate-avatar {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    
    .navigation-btns {
        flex-direction: row;
        gap: 10px;
    }
    
    .nav-btn {
        flex: 1;
        padding: 12px 15px;
        font-size: 13px;
    }
    
    .module-navigation {
        flex-direction: column;
        gap: 10px;
    }
    
    .module-navigation .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .page-header {
        margin-bottom: 15px;
    }

    .page-title {
        font-size: 1.3rem;
    }

    .global-header {
        height: 55px;
        padding: 0 10px;
    }

    




    
    .hamburger-btn,
    .user-icon {
        width: 42px;
        height: 42px;
    }
    
    [data-theme="basic"] .logo-text,
    [data-theme="dark"] .logo-text {
        font-size: 1.6rem;
    }

    [data-theme="flow"] .logo-text {
        font-size: 1.4rem;
    }
    
    .auth-buttons {
        gap: 5px;
    }
    
    .auth-buttons .btn {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .main-title {
        font-size: clamp(2.5rem, 20vw, 5rem);
    }
    
    .page-content {
        padding: 70px 10px 15px;
    }
    
    .container {
        padding: 15px;
    }
    
    .page-title {
        font-size: 1.1rem;
    }
    
    .back-btn {
        width: 38px;
        height: 38px;
        font-size: 18px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .modal-buttons {
        flex-direction: column;
    }
    
    .modal-buttons .btn {
        width: 100%;
    }
    
    .library-grid,
    .favorites-grid {
        grid-template-columns: 1fr;
    }

    
    .action-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .action-card {
        padding: 16px 12px;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 8px;
    }

    .action-icon-svg svg {
        width: 34px;
        height: 34px;
    }
    
    .material-card {
        padding: 15px;
    }
    
    .material-card-title {
        font-size: 0.95rem;
    }
    
    
    .flashcard-face {
        min-height: 180px;
        padding: 20px;
    }
    
    .flashcard-question {
        font-size: 1rem;
    }
    
    .flashcard-answer {
        font-size: 1.2rem;
    }
    
    .flashcard-scoring {
        gap: 10px;
    }
    
    .score-btn {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    
    .question-box {
        padding: 15px;
    }
    
    .option {
        padding: 12px 14px;
        font-size: 0.9rem;
    }
    
    
    .matching-item {
        padding: 12px;
        font-size: 0.85rem;
    }
    
    
    .upload-textarea {
        min-height: 200px;
    }
    
    
    .quicklook-icon {
        width: 60px;
        height: 60px;
        font-size: 1.6rem;
    }
    
    .quicklook-title {
        font-size: 1.1rem;
    }
    
    .preview-list {
        max-height: 200px;
        padding: 12px;
    }
    
    [data-theme="flow"] .title-wrapper {
        padding: 15px 25px;
    }
    
    [data-theme="flow"] .title-cursor {
        display: inline-block;
        width: 0.12em;
        margin-left: 0.04em;
        top: 0.02em;
    }
    
    
    .button-group {
        flex-direction: column;
    }
    
    .button-group .btn {
        width: 100%;
    }
}

/* ==================== SVG ICONS ==================== */

.menu-icon-svg {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.menu-icon-svg svg {
    width: 100%;
    height: 100%;
    fill: var(--text-primary);
    transition: fill 0.3s ease;
}

.menu-item:hover .menu-icon-svg svg {
    fill: var(--color-accent);
}


.action-icon-svg {
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-icon-svg svg {
    width: 48px;
    height: 48px;
    fill: var(--color-accent);
    transition: fill 0.3s ease, transform 0.3s ease;
}

.action-card:hover .action-icon-svg svg {
    transform: scale(1.1);
}


.ent-icon-svg {
    display: flex;
    align-items: center;
    justify-content: center;
}

.ent-icon-svg svg {
    width: 28px;
    height: 28px;
    fill: var(--color-accent);
    transition: fill 0.3s ease, transform 0.3s ease;
}

.ent-card:hover .ent-icon-svg svg {
    transform: scale(1.15);
}


[data-theme="dark"] .menu-icon-svg svg {
    fill: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .menu-item:hover .menu-icon-svg svg {
    fill: #ffffff;
}

[data-theme="pixel"] .menu-icon-svg svg {
    fill: var(--color-primary);
}

[data-theme="pixel"] .menu-item:hover .menu-icon-svg svg {
    fill: var(--color-primary-light);
    filter: drop-shadow(0 0 4px var(--color-primary));
}

[data-theme="flow"] .menu-icon-svg svg {
    fill: rgba(255, 255, 255, 0.85);
}

[data-theme="flow"] .menu-item:hover .menu-icon-svg svg {
    fill: var(--color-accent);
    filter: drop-shadow(0 0 6px var(--color-accent));
}


[data-theme="dark"] .action-icon-svg svg {
    fill: #ffffff;
}

[data-theme="pixel"] .action-icon-svg svg {
    fill: var(--color-primary);
    filter: drop-shadow(0 0 4px var(--color-primary));
}

[data-theme="flow"] .action-icon-svg svg {
    fill: var(--color-accent);
    filter: drop-shadow(0 0 6px var(--color-accent));
}


[data-theme="dark"] .ent-icon-svg svg {
    fill: #ffffff;
}

[data-theme="pixel"] .ent-icon-svg svg {
    fill: var(--color-primary);
    filter: drop-shadow(0 0 3px var(--color-primary));
}

[data-theme="flow"] .ent-icon-svg svg {
    fill: var(--color-accent);
    filter: drop-shadow(0 0 4px var(--color-accent));
}

/* ==================== LIBRARY SVG ICONS ==================== */
.material-badge-svg {
    display: flex;
    align-items: center;
    justify-content: center;
}

.material-badge-svg svg {
    width: 20px;
    height: 20px;
    fill: var(--color-accent);
}

.meta-item-svg {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.meta-item-svg svg {
    width: 14px;
    height: 14px;
    fill: var(--text-muted);
    flex-shrink: 0;
}

.meta-subject {
    color: var(--color-primary);
    font-weight: 500;
}

.meta-subject svg {
    fill: var(--color-primary);
}

.meta-likes {
    color: #ff6b81;
}

.meta-likes svg {
    fill: #ff6b81;
}

.meta-likes .like-count-value {
    font-weight: 600;
}

.action-btn-svg {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.action-btn-svg svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    flex-shrink: 0;
}

.favorite-active svg {
    fill: #ffc107;
}


.like-btn {
    display: flex;
    align-items: center;
    gap: 4px;
}

.like-btn .like-count {
    font-size: 0.85em;
    font-weight: 600;
}

.like-btn.liked {
    background: rgba(255, 107, 129, 0.15);
    border-color: #ff6b81;
    color: #ff6b81;
}

.like-btn.liked svg {
    fill: #ff6b81;
}

.like-btn:hover:not(.liked) {
    border-color: #ff6b81;
    color: #ff6b81;
}

.like-btn:hover:not(.liked) svg {
    fill: #ff6b81;
}


[data-theme="dark"] .like-btn.liked {
    background: rgba(255, 107, 129, 0.2);
}

[data-theme="pixel"] .like-btn.liked {
    box-shadow: 2px 2px 0 #ff6b81;
}

[data-theme="flow"] .like-btn.liked {
    box-shadow: 0 0 10px rgba(255, 107, 129, 0.4);
}

.delete-btn svg {
    fill: #ff4757;
}

/* ==================== DELETE AVATAR BUTTON ==================== */
.avatar-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.delete-avatar-btn {
    color: #ff4757 !important;
    border-color: rgba(255, 71, 87, 0.3) !important;
}

.delete-avatar-btn:hover {
    background: rgba(255, 71, 87, 0.1) !important;
    border-color: rgba(255, 71, 87, 0.5) !important;
}

/* ==================== PASSWORD TOGGLE ==================== */
.password-toggle-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 8px;
}

.password-toggle-checkbox {
    display: none;
}

.password-toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    user-select: none;
}

.password-toggle-icon {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    background: var(--bg-glass);
}

.password-toggle-icon svg {
    width: 16px;
    height: 16px;
    fill: var(--text-muted);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.password-toggle-checkbox:checked + .password-toggle-label .password-toggle-icon {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.password-toggle-checkbox:checked + .password-toggle-label .password-toggle-icon svg {
    opacity: 1;
    fill: var(--text-on-primary);
}


[data-theme="pixel"] .password-toggle-icon {
    border-radius: 0;
    box-shadow: var(--shadow-sm);
}

[data-theme="flow"] .password-toggle-icon {
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

/* ==================== SCORE BUTTONS ==================== */
.score-btn {
    transition: all 0.2s ease;
}

.score-btn:hover {
    transform: scale(1.05);
}

.score-btn:active {
    transform: scale(0.95);
}

/* ==================== ENHANCED MOBILE EXPERIENCE ==================== */
@media (max-width: 768px) {
    
    .btn {
        min-height: 44px;
        padding: 12px 20px;
        font-size: 16px;
    }

    
    .action-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .action-card {
        padding: 15px;
        min-height: auto;
    }

    .ent-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .ent-card-full {
        grid-column: span 1;
    }

    .ent-card {
        padding: 12px;
        min-height: 60px;
    }

    
    .modal {
        margin: 10px;
        max-height: calc(100vh - 20px);
        overflow-y: auto;
    }

    
    .form-input,
    .form-select,
    .material-input {
        font-size: 16px; 
        padding: 12px;
    }
    
    .btn-small {
        min-height: 38px;
        padding: 8px 16px;
    }
    
    
    .menu-item {
        min-height: 54px;
        padding: 14px 18px;
    }
    
    
    .form-input,
    .form-select,
    .material-input {
        min-height: 48px;
        font-size: 16px; 
    }
    
    
    .flashcard {
        touch-action: manipulation;
    }
    
    
    .avatar-buttons {
        flex-direction: column;
        gap: 8px;
    }
    
    .avatar-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    
    .password-toggle-wrapper {
        margin-top: 12px;
    }
    
    
    .ent-grid {
        gap: 10px;
    }
    
    .ent-card {
        padding: 12px;
        font-size: 0.85rem;
    }
    
    .ent-icon-svg svg {
        width: 24px;
        height: 24px;
    }
}


@media (max-width: 360px) {
    .global-header {
        height: 50px;
    }

    .container {
        padding: 8px;
    }

    
    body, html {
        overflow-x: hidden;
        width: 100%;
    }





    
    .hamburger-btn,
    .user-icon {
        width: 38px;
        height: 38px;
    }
    
    [data-theme="basic"] .logo-text,
    [data-theme="dark"] .logo-text {
        font-size: 1.35rem;
    }

    [data-theme="flow"] .logo-text {
        font-size: 1.2rem;
    }
    
    .main-title {
        font-size: clamp(2rem, 18vw, 4rem);
    }
    
    .home-container {
        padding: 10px;
    }
    
    .home-section {
        padding: 15px;
    }
    
    .section-title {
        font-size: 1.1rem;
    }
    
    .action-card {
        padding: 15px;
    }
    
    .action-icon-svg svg {
        width: 40px;
        height: 40px;
    }
    
    .action-card h3 {
        font-size: 0.9rem;
    }
    
    .action-card p {
        font-size: 0.75rem;
    }
}


@supports (padding-top: env(safe-area-inset-top)) {
    .global-header {
        padding-top: env(safe-area-inset-top);
        height: calc(55px + env(safe-area-inset-top));
    }
    
    .page-content {
        padding-top: calc(70px + env(safe-area-inset-top));
    }
    
    .main-content {
        padding-top: calc(70px + env(safe-area-inset-top));
    }
    
}

/* ==================== PIXEL STYLE MAIN TITLE FIX ==================== */
[data-theme="pixel"] .main-title {
    font-size: clamp(3rem, 10vw, 6rem);
}

/* ==================== FLOW STYLE TITLE CURSOR FIX ==================== */
[data-theme="flow"] .title-cursor {
    margin-left: 0.05em;
    width: 0.13em;
    font-size: inherit;
}

/* ==================== QUICK ACTION BUTTONS ==================== */
.quick-actions-section {
    padding: 20px;
    margin-bottom: 15px;
}

.quick-action-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 25px 15px;
    border-radius: 16px;
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.quick-action-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.quick-action-icon {
    font-size: 2rem;
}

.quick-action-learn {
    background: linear-gradient(135deg, rgba(126, 242, 156, 0.2) 0%, rgba(62, 166, 106, 0.3) 100%);
    border-color: rgba(126, 242, 156, 0.5);
    position: relative;
}


.beta-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 100%);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(255, 107, 107, 0.4);
}

[data-theme="dark"] .beta-badge {
    background: linear-gradient(135deg, #ff8080 0%, #ff6060 100%);
}

[data-theme="pixel"] .beta-badge {
    border-radius: 0;
    border: 2px solid #1a1c2c;
    box-shadow: 2px 2px 0 #1a1c2c;
}

[data-theme="flow"] .beta-badge {
    background: rgba(255, 100, 100, 0.9);
    box-shadow: 0 0 10px rgba(255, 100, 100, 0.6);
}

.quick-action-learn:hover {
    background: linear-gradient(135deg, rgba(126, 242, 156, 0.3) 0%, rgba(62, 166, 106, 0.4) 100%);
    border-color: var(--color-primary);
}

.quick-action-practice {
    background: linear-gradient(135deg, rgba(244, 211, 94, 0.2) 0%, rgba(238, 150, 75, 0.3) 100%);
    border-color: rgba(244, 211, 94, 0.5);
}

.quick-action-practice:hover {
    background: linear-gradient(135deg, rgba(244, 211, 94, 0.3) 0%, rgba(238, 150, 75, 0.4) 100%);
    border-color: #f4d35e;
}

.quick-action-realtest {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.2) 0%, rgba(238, 90, 90, 0.3) 100%);
    border-color: rgba(255, 107, 107, 0.5);
}

.quick-action-realtest:hover {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.3) 0%, rgba(238, 90, 90, 0.4) 100%);
    border-color: #ff6b6b;
}


[data-theme="dark"] .quick-action-learn {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.15) 100%);
}

[data-theme="dark"] .quick-action-practice {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.15) 100%);
}

[data-theme="dark"] .quick-action-realtest {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.15) 100%);
}

[data-theme="pixel"] .quick-action-btn {
    border-radius: 0;
}

[data-theme="flow"] .quick-action-btn:hover {
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
}

/* ==================== DISABLED ACTION CARD ==================== */
.action-card-disabled {
    opacity: 0.6;
    cursor: not-allowed;
    position: relative;
}

.action-card-disabled::after {
    content: '🔧';
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.2rem;
}

.action-card-disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--border-color);
}

/* ==================== TEST EDITOR STYLES ==================== */
.test-editor-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.visibility-options {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.visibility-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
    min-width: 150px;
}

.visibility-option:hover {
    border-color: var(--color-primary);
}

.visibility-option input[type="radio"] {
    accent-color: var(--color-primary);
    width: 18px;
    height: 18px;
}

.visibility-option input[type="radio"]:checked + .visibility-icon + span {
    color: var(--color-primary);
    font-weight: 600;
}

.visibility-icon {
    font-size: 1.3rem;
}

.test-questions-editor {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.test-questions-editor h3 {
    color: var(--color-primary);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

#testQuestionsList {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 15px;
}

.test-question-card {
    background: var(--bg-glass-dark);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.test-question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.test-question-header h4 {
    color: var(--color-primary);
    font-size: 1rem;
}

.test-question-delete {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid rgba(255, 107, 107, 0.3);
    background: transparent;
    color: #ff6b6b;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.test-question-delete:hover {
    background: rgba(255, 107, 107, 0.1);
    border-color: #ff6b6b;
}

.test-question-input {
    margin-bottom: 15px;
}

.test-question-input input {
    width: 100%;
}

.test-options-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.test-option-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.test-option-row input[type="radio"] {
    accent-color: var(--color-primary);
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.test-option-row input[type="text"] {
    flex: 1;
}

.test-option-row .option-label {
    min-width: 25px;
    font-weight: 600;
    color: var(--text-muted);
}

.btn-add-question {
    width: 100%;
    justify-content: center;
    margin-top: 10px;
}


[data-theme="pixel"] .test-question-card,
[data-theme="pixel"] .visibility-option,
[data-theme="pixel"] .test-questions-editor {
    border-radius: 0;
}

/* ==================== RESPONSIVE FOR NEW ELEMENTS ==================== */
@media (max-width: 768px) {
    .quick-action-buttons {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .quick-action-btn {
        flex-direction: row;
        padding: 15px 20px;
        justify-content: flex-start;
    }
    
    .quick-action-icon {
        font-size: 1.5rem;
    }
    
    .visibility-options {
        flex-direction: column;
    }
    
    .visibility-option {
        width: 100%;
    }
    
    .test-option-row {
        flex-wrap: wrap;
    }
    
    .test-option-row input[type="text"] {
        width: 100%;
        margin-top: 5px;
    }
}

@media (max-width: 480px) {
    .quick-action-btn {
        padding: 12px 15px;
    }
    
    
    .guess-stats {
        gap: 20px;
    }
    
    .guess-stat-value {
        font-size: 2rem;
    }
    
    .guess-facts-container {
        gap: 8px;
    }
    
    .guess-fact-card {
        padding: 15px;
    }
    
    .guess-fact-text {
        font-size: 0.95rem;
    }
    
    .fact-level-badge {
        font-size: 0.7rem;
    }
    
    .guess-input-area {
        flex-direction: column;
    }
    
    .guess-input {
        width: 100%;
    }
    
    .guess-hints {
        flex-direction: column;
    }
    
    .guess-result-actions {
        flex-direction: column;
    }
    
    
    .test-details-modal {
        padding: 20px;
    }
    
    .test-details-stats {
        gap: 20px;
    }
    
    .test-stat-value {
        font-size: 1.5rem;
    }
    
    .test-details-actions {
        gap: 10px;
    }
    
    
    .like-btn .like-count {
        font-size: 0.8em;
    }
}

/* ==================== TEST EDITOR PAGE ==================== */
.test-editor-container {
    max-width: 800px;
    margin: 0 auto;
    padding-bottom: 100px;
}

.test-editor-step {
    animation: fadeIn 0.3s ease;
}

.test-editor-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.step-title {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
    font-size: 1.3rem;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.1rem;
}

.form-input-large {
    font-size: 1.1rem;
    padding: 15px 20px;
}

.visibility-toggle {
    display: flex;
    gap: 15px;
}


.form-group-spaced {
    margin-bottom: 25px;
}

.test-editor-card .form-group-spaced {
    background: rgba(127, 127, 127, 0.06);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 14px;
}

.visibility-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    background: #ffffff;
    border: 3px solid #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    color: var(--text);
}

.visibility-btn:hover {
    border-color: #4CAF50;
    transform: translateY(-2px);
}

.visibility-btn.active {
    background: #e8f5e9;
    border-color: #4CAF50;
    color: #2e7d32;
}

.visibility-btn .visibility-icon {
    font-size: 1.5rem;
}


[data-theme="dark"] .visibility-btn {
    background: #1a1a2e;
    border-color: #444;
    color: #e0e0e0;
}

[data-theme="dark"] .visibility-btn:hover {
    border-color: #888;
}

[data-theme="dark"] .visibility-btn.active {
    background: rgba(76, 175, 80, 0.2);
    border-color: #4CAF50;
    color: #4CAF50;
}

[data-theme="dark"] .visibility-icon {
    opacity: 1;
}


.delete-question-btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(231, 76, 60, 0.1);
    border: 2px solid #e74c3c;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.delete-question-btn:hover {
    background: #e74c3c;
    color: white;
}

.delete-question-btn.hidden {
    display: none;
}


#testEditorStep2 .page-header {
    position: relative;
}


.btn-success {
    background: #27ae60;
    color: white;
    border: none;
}

.btn-success:hover {
    background: #219a52;
}

.btn-mark-correct {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-next {
    width: 100%;
    margin-top: 30px;
    padding: 18px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}


.question-editor-area {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    min-height: 400px;
}

.question-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.editor-stage-hint {
    margin: 0;
    padding: 12px 14px;
    border: 1px dashed var(--border-color);
    border-radius: 10px;
    background: rgba(127, 127, 127, 0.06);
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.45;
}

.editor-section-label {
    margin: 4px 2px -6px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.question-text-btn {
    width: 100%;
    padding: 25px 20px;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: left;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.question-text-btn:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.question-text-btn.has-content {
    color: var(--text);
    font-weight: 500;
}

.question-image-area {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.question-image-area.has-image {
    border-color: var(--border-color);
}

.question-image-area:hover {
    border-color: var(--primary);
}

.image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
}

.image-icon {
    font-size: 3rem;
    opacity: 0.5;
}

.question-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.answer-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.answer-option-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px 20px;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    text-align: left;
    transition: all 0.3s ease;
    color: var(--text);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.answer-option-btn:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.answer-option-btn.correct {
    background: rgba(46, 204, 113, 0.15);
    border-color: #27ae60;
    border-width: 2px;
}

.option-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    flex-shrink: 0;
}

.option-text {
    flex: 1;
    color: var(--text-secondary);
}

.answer-option-btn.has-content .option-text {
    color: var(--text);
}

.correct-indicator {
    color: #2ecc71;
    font-size: 1.3rem;
    font-weight: 700;
}

.btn-add-option {
    margin-top: 10px;
    width: fit-content;
}


.question-navigation {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 20px;
}

.question-nav-scroll {
    flex: 1;
    display: flex;
    gap: 10px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 5px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) transparent;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

.question-nav-scroll::-webkit-scrollbar {
    height: 6px;
}

.question-nav-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.question-nav-scroll::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}

.question-nav-btn {
    min-width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    cursor: pointer;
    font-weight: 600;
    color: var(--text);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.question-nav-btn:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.question-nav-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.4);
}

.question-nav-btn.completed {
    background: rgba(46, 204, 113, 0.2);
    border-color: #27ae60;
    color: #27ae60;
}

.question-nav-add {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.2rem;
    color: white;
    transition: all 0.3s ease;
}

.question-nav-add:hover {
    transform: scale(1.1);
}


.editor-actions {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px 20px;
    background: var(--card-bg);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
    z-index: 1200;
    pointer-events: auto;
}

.btn-save-test {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px;
    font-size: 1.1rem;
    position: relative;
    z-index: 1300;
    pointer-events: auto;
}


.edit-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 20px;
}

.edit-input-container {
    width: 100%;
    max-width: 600px;
    background: var(--card-bg);
    border-radius: 16px;
    padding: 20px;
    animation: slideUp 0.3s ease;
}

.edit-textarea {
    width: 100%;
    min-height: 150px;
    padding: 15px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 1.1rem;
    resize: none;
    background: var(--bg);
    color: var(--text);
}

.edit-textarea:focus {
    outline: none;
    border-color: var(--primary);
}


.edit-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 15px;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}


@media (max-width: 768px) {
    .test-editor-card {
        padding: 20px;
    }
    
    .visibility-toggle {
        flex-direction: column;
    }
    
    .question-editor-area {
        padding: 15px;
    }
    
    .question-text-btn {
        padding: 20px 15px;
        font-size: 1rem;
    }
    
    .answer-option-btn {
        padding: 15px;
    }
    
    .option-letter {
        width: 30px;
        height: 30px;
    }

    #testEditorStep2 .page-header {
        align-items: flex-start;
        padding-right: 52px;
    }

    #testEditorStep2 .page-title {
        font-size: 1.05rem;
        line-height: 1.25;
    }

    .delete-question-btn {
        right: 10px;
        width: 34px;
        height: 34px;
        font-size: 1rem;
    }

    .edit-actions {
        flex-wrap: wrap;
        gap: 8px;
    }

    .edit-actions .btn {
        flex: 1 1 calc(50% - 8px);
        min-width: 0;
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .edit-actions .btn-delete-option {
        flex: 0 0 auto;
        width: 42px;
        padding: 8px;
    }
}

@media (max-width: 480px) {
    #testEditorStep2 .page-title {
        font-size: 0.95rem;
    }

    .edit-actions .btn {
        flex: 1 1 100%;
    }

    .edit-actions .btn-delete-option {
        flex: 0 0 42px;
    }
}


.dark-theme .edit-overlay {
    background: rgba(0,0,0,0.85);
}

.dark-theme .question-text-btn,
.dark-theme .question-image-area,
.dark-theme .answer-option-btn {
    background: var(--bg);
}

/* ==================== THEME-SPECIFIC TEST EDITOR STYLES ==================== */


[data-theme="dark"] .test-editor-card .visibility-btn {
    background: #1a1a2e;
    border: 3px solid #555;
    color: #e0e0e0;
}

[data-theme="dark"] .test-editor-card .visibility-btn:hover {
    border-color: #888;
}

[data-theme="dark"] .test-editor-card .visibility-btn.active {
    background: rgba(76, 175, 80, 0.2);
    border-color: #4CAF50;
    color: #4CAF50;
}

.dark-theme .question-text-btn {
    background: #1a1a2e;
    border: 1px solid transparent;
    color: #888;
}

.dark-theme .question-text-btn:hover {
    border-color: var(--primary);
}

.dark-theme .question-text-btn.has-content {
    color: #fff;
}

.dark-theme .question-image-area {
    background: #1a1a2e;
    border: 1px solid transparent;
}

.dark-theme .answer-option-btn {
    background: #1a1a2e;
    border: 1px solid transparent;
    color: #ccc;
}

.dark-theme .answer-option-btn:hover {
    border-color: var(--primary);
}

.dark-theme .answer-option-btn.correct {
    background: rgba(39, 174, 96, 0.2);
    border-color: #27ae60;
}

.dark-theme .question-nav-btn {
    background: #1a1a2e;
    border: 1px solid transparent;
    color: #ccc;
}

.dark-theme .question-nav-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.dark-theme .question-nav-btn.completed {
    background: rgba(39, 174, 96, 0.3);
    border-color: #27ae60;
    color: #27ae60;
}


.pixel-theme .test-editor-card,
.pixel-theme .question-editor-area,
.pixel-theme .question-navigation,
.pixel-theme .edit-input-container {
    border-radius: 0;
    border: 4px solid var(--text);
}

.pixel-theme .visibility-btn,
[data-theme="pixel"] .visibility-btn {
    border-radius: 0;
    border: 4px solid #1a1c2c;
    background: var(--bg-secondary);
    color: var(--text-primary);
    box-shadow: 4px 4px 0 #1a1c2c;
    font-family: var(--font-pixel, 'Press Start 2P', monospace);
    font-size: 0.75rem;
}

.pixel-theme .visibility-btn:hover,
[data-theme="pixel"] .visibility-btn:hover {
    background: var(--card-bg);
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 #1a1c2c;
}

.pixel-theme .visibility-btn.active,
[data-theme="pixel"] .visibility-btn.active {
    background: #f4d35e;
    border-color: #ee964b;
    color: #1a1c2c;
    box-shadow: 4px 4px 0 #ee964b;
}

.pixel-theme .question-nav-btn,
.pixel-theme .question-nav-add,
.pixel-theme .answer-option-btn,
.pixel-theme .question-text-btn,
.pixel-theme .question-image-area {
    border-radius: 0;
    border: 4px solid var(--text);
}

.pixel-theme .question-nav-btn.active {
    background: #8b5cf6;
    border-color: #8b5cf6;
}

.pixel-theme .question-nav-btn.completed {
    background: #10b981;
    border-color: #10b981;
    color: white;
}


[data-theme="flow"] .visibility-btn {
    background: rgba(0, 255, 65, 0.05);
    border: 2px solid rgba(0, 255, 65, 0.3);
    color: var(--text);
}

[data-theme="flow"] .visibility-btn:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .visibility-btn.active {
    background: rgba(0, 255, 65, 0.15);
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
}

[data-theme="flow"] .question-text-btn,
[data-theme="flow"] .question-image-area,
[data-theme="flow"] .answer-option-btn {
    background: rgba(0, 255, 65, 0.05);
    border: 2px solid rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .question-text-btn:hover,
[data-theme="flow"] .question-image-area:hover,
[data-theme="flow"] .answer-option-btn:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .answer-option-btn.correct {
    background: rgba(0, 255, 65, 0.2);
    border-color: var(--color-primary);
}

[data-theme="flow"] .question-nav-btn {
    background: rgba(0, 255, 65, 0.05);
    border: 2px solid rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .question-nav-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #000;
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.5);
}

[data-theme="flow"] .question-nav-btn.completed {
    background: rgba(0, 255, 65, 0.3);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ==================== EXIT EDITOR MODAL FIX ==================== */
#exitEditorModal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    background: rgba(0,0,0,0.7);
    display: none;
    align-items: center;
    justify-content: center;
}

#exitEditorModal:not(.hidden) {
    display: flex !important;
}

#exitEditorModal .modal {
    position: relative;
    transform: none;
    margin: 20px;
    max-width: 400px;
    width: 90%;
    background: var(--card-bg);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

#exitEditorModal .modal-title {
    margin-bottom: 15px;
    color: var(--text);
}

#exitEditorModal .modal-text {
    color: var(--text-secondary);
    margin-bottom: 25px;
    line-height: 1.5;
}

#exitEditorModal .modal-buttons {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}


.btn-delete-option {
    background: transparent;
    border: 2px solid #e74c3c;
    color: #e74c3c;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-delete-option:hover {
    background: #e74c3c;
    color: white;
}

.btn-delete-option:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}


.library-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}



/* ==================== TEST TAKING PAGE STYLES ==================== */
.test-taking-page {
    min-height: 100vh;
    padding-bottom: 100px;
}

.test-question-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.test-question-number {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.test-question-text {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 25px;
    line-height: 1.6;
}

.test-question-image-wrap {
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg);
}

.test-question-image {
    display: block;
    width: 100%;
    max-height: 320px;
    object-fit: contain;
}

@media (max-width: 768px) {
    .test-question-image {
        max-height: 220px;
    }
}

.test-answers {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.test-answer-btn {
    width: 100%;
    padding: 18px 20px;
    background: var(--bg);
    border: 3px solid var(--border);
    border-radius: 12px;
    text-align: left;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text);
    transition: all 0.3s ease;
}

.test-answer-btn:hover:not(:disabled) {
    border-color: var(--primary);
    transform: translateX(5px);
}

.test-answer-btn.selected {
    border-color: var(--primary);
    background: var(--primary-light);
}

.test-answer-btn.correct {
    border-color: #27ae60;
    background: rgba(39, 174, 96, 0.15);
    color: #27ae60;
}

.test-answer-btn.incorrect {
    border-color: #e74c3c;
    background: rgba(231, 76, 60, 0.15);
    color: #e74c3c;
}

.test-answer-btn:disabled {
    cursor: default;
}

.test-navigation-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    overflow-x: auto;
    padding: 10px 0;
}

.test-nav-btn {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.test-nav-btn.current {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.test-nav-btn.answered {
    background: var(--primary-light);
    border-color: var(--primary);
}

.test-footer-actions {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px 20px;
    background: var(--card-bg);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    gap: 10px;
    z-index: 100;
}

.test-footer-actions .btn {
    flex: 1;
}

/* ==================== AI TEACHER STYLES ==================== */


.ai-material-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ai-material-option {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-secondary);
    width: 100%;
    text-align: left;
    color: var(--text-primary);
}

.ai-material-option:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.ai-option-icon {
    width: 30px;
    font-size: 1.45rem;
    line-height: 1;
    text-align: center;
    flex-shrink: 0;
}

.ai-option-name {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

.ai-option-desc {
    display: none;
}


.ai-material-textarea {
    width: 100%;
    height: 300px;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    resize: vertical;
    margin-bottom: 20px;
    font-family: inherit;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.ai-material-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.ai-material-url-input {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 0.95rem;
    font-family: inherit;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.ai-material-url-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.ai-material-url-help {
    margin: 10px 0 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}


.ai-history-mode-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    cursor: pointer;
    user-select: none;
}

.ai-history-mode-toggle input {
    display: none;
}

.ai-toggle-slider {
    position: relative;
    width: 50px;
    height: 26px;
    background: var(--border-color);
    border-radius: 13px;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.ai-toggle-slider::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.ai-history-mode-toggle input:checked + .ai-toggle-slider {
    background: var(--color-primary);
}

.ai-history-mode-toggle input:checked + .ai-toggle-slider::after {
    transform: translateX(24px);
}

.ai-toggle-label {
    font-weight: 600;
    color: var(--text-primary);
}


.ai-file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

.ai-file-upload-area.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.ai-upload-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
}

.ai-upload-text {
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.ai-selected-file {
    margin-top: 15px;
    font-weight: 600;
    color: var(--color-primary);
    width: 100%;
    max-width: 100%;
    padding: 10px 12px;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.03);
    line-height: 1.35;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
    box-sizing: border-box;
}

.ai-selected-file:empty {
    display: none;
}


.ai-count-options {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.ai-count-btn {
    width: 70px;
    height: 70px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--card-bg);
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.ai-count-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: scale(1.05);
}


.ai-loading-screen {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.ai-loading-screen.active {
    display: flex;
}

.ai-loading-content {
    text-align: center;
    color: white;
}

.ai-loader {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255,255,255,0.2);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: ai-spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes ai-spin {
    to { transform: rotate(360deg); }
}

.ai-loading-text {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.ai-loading-subtext {
    color: rgba(255,255,255,0.7);
}


.ai-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

.ai-center-content {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 100px);
}


.ai-page-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.ai-page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}


.ai-learn-plan-nav {
    margin-bottom: 20px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.ai-plan-list {
    display: flex;
    gap: 8px;
    padding: 5px 0;
}

.ai-plan-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
    color: var(--text-primary);
}

.ai-plan-item:hover {
    border-color: var(--color-primary);
}

.ai-plan-item.active {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.ai-plan-item.completed {
    border-color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
}

.ai-plan-item.partial {
    border-color: #f39c12;
    background: rgba(243, 156, 18, 0.12);
}

.ai-plan-item.missed {
    border-color: #e74c3c;
    background: rgba(231, 76, 60, 0.12);
}

.ai-plan-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 700;
}

.ai-plan-item.completed .ai-plan-number {
    background: #27ae60;
}

.ai-plan-item.partial .ai-plan-number {
    background: #f39c12;
}

.ai-plan-item.missed .ai-plan-number {
    background: #e74c3c;
}

.ai-plan-title {
    font-size: 0.9rem;
    font-weight: 500;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
}


.ai-learn-progress {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.ai-progress-bar {
    flex: 1;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.ai-progress-fill {
    height: 100%;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.ai-progress-text {
    font-weight: 600;
    color: var(--text-secondary);
}


.ai-learn-view-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.ai-view-tab {
    padding: 10px 20px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.ai-view-tab:hover {
    border-color: var(--color-primary);
}

.ai-view-tab.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
}


.ai-learn-content {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.ai-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.ai-content-text,
.ai-content-general {
    line-height: 1.8;
    color: var(--text-primary);
}

.ai-content-list {
    padding-left: 25px;
}

.ai-content-list li {
    margin-bottom: 10px;
}

.ai-content-summary {
    list-style: none;
    padding: 0;
}

.ai-content-summary li {
    position: relative;
    padding: 12px 15px 12px 35px;
    margin-bottom: 10px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 3px solid var(--color-primary);
}

.ai-content-summary li::before {
    content: "•";
    position: absolute;
    left: 15px;
    color: var(--color-primary);
    font-weight: bold;
}


.ai-content-timeline {
    position: relative;
    padding-left: 30px;
}

.ai-content-timeline::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--color-primary), #27ae60);
    border-radius: 2px;
}

.ai-timeline-item {
    position: relative;
    padding: 15px 20px;
    margin-bottom: 15px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.ai-timeline-item::before {
    content: "";
    position: absolute;
    left: -26px;
    top: 20px;
    width: 12px;
    height: 12px;
    background: var(--color-primary);
    border-radius: 50%;
    border: 3px solid var(--card-bg);
}

.ai-timeline-period {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.ai-timeline-event {
    color: var(--text-primary);
    line-height: 1.6;
}

.ai-no-content {
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
    padding: 20px;
}


.ai-learn-questions {
    margin-bottom: 25px;
}

.ai-learn-question-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.ai-learn-question-text {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.ai-learn-answers {
    display: grid;
    gap: 10px;
}

.ai-learn-answer-btn {
    padding: 15px 20px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.ai-learn-answer-btn:hover:not(:disabled) {
    border-color: var(--color-primary);
}

.ai-learn-answer-btn.correct {
    border-color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
}

.ai-learn-answer-btn.incorrect {
    border-color: #e74c3c;
    background: rgba(231, 76, 60, 0.1);
}

.ai-learn-explanation {
    margin-top: 15px;
    padding: 15px;
    background: rgba(231, 76, 60, 0.1);
    border-radius: 8px;
    border-left: 4px solid #e74c3c;
    color: #e74c3c;
}

.ai-all-answered {
    text-align: center;
    padding: 20px;
    color: #27ae60;
    font-weight: 600;
}

.ai-learn-navigation {
    display: flex;
    justify-content: space-between;
    gap: 15px;
}


.ai-complete-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 50px;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    max-width: 500px;
}

.ai-complete-icon {
    font-size: 4rem;
    display: block;
    margin-bottom: 20px;
}

.ai-complete-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.ai-complete-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.ai-complete-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}


.ai-flashcard-progress {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.ai-flashcard-container {
    perspective: 1000px;
    margin-bottom: 20px;
}

.ai-flashcard {
    width: 100%;
    max-width: 500px;
    height: 300px;
    margin: 0 auto;
    cursor: pointer;
    position: relative;
}

.ai-flashcard-inner {
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    position: relative;
}

.ai-flashcard.flipped .ai-flashcard-inner {
    transform: rotateY(180deg);
}

.ai-flashcard-front,
.ai-flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.ai-flashcard-front {
    background: linear-gradient(135deg, var(--color-primary), #7C3AED);
    color: white;
}

.ai-flashcard-back {
    background: var(--card-bg);
    transform: rotateY(180deg);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.ai-flashcard-front p,
.ai-flashcard-back p {
    font-size: 1.25rem;
    text-align: center;
    line-height: 1.6;
}

.ai-flashcard-hint {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.ai-flashcard-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.ai-score-btn {
    padding: 15px 40px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.ai-score-btn.knew {
    background: #27ae60;
    color: white;
}

.ai-score-btn.knew:hover {
    background: #219a52;
}

.ai-score-btn.didnt-know {
    background: #e74c3c;
    color: white;
}

.ai-score-btn.didnt-know:hover {
    background: #c0392b;
}


.ai-question-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 10px 0;
    margin-bottom: 20px;
    -webkit-overflow-scrolling: touch;
}

.ai-nav-btn {
    min-width: 40px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
    color: var(--text-primary);
}

.ai-nav-btn.active {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.ai-nav-btn.answered {
    background: var(--border-color);
}

.ai-nav-btn.correct {
    border-color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
}

.ai-nav-btn.incorrect {
    border-color: #e74c3c;
    background: rgba(231, 76, 60, 0.1);
}

.ai-question-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.ai-question-number {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.ai-question-text {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 25px;
    line-height: 1.6;
    color: var(--text-primary);
}

.ai-answers {
    display: grid;
    gap: 12px;
}

.ai-answer-btn {
    padding: 15px 20px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.ai-answer-btn:hover:not(:disabled) {
    border-color: var(--color-primary);
}

.ai-answer-btn.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.ai-answer-btn.correct {
    border-color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
}

.ai-answer-btn.incorrect {
    border-color: #e74c3c;
    background: rgba(231, 76, 60, 0.1);
}

.ai-answer-btn.hint-hidden {
    opacity: 0.4;
    text-decoration: line-through;
}

.ai-answer-btn:disabled {
    cursor: default;
}

.ai-explanation-container {
    display: none;
    margin-top: 20px;
    padding: 15px;
    background: rgba(231, 76, 60, 0.1);
    border-radius: 8px;
    border-left: 4px solid #e74c3c;
}

.ai-explanation-text {
    color: var(--text-primary);
    line-height: 1.6;
}

.ai-test-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.ai-test-navigation {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.ai-result-section {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.btn-hint {
    background: #f39c12;
    color: white;
}

.btn-hint:hover {
    background: #e67e22;
}

.btn-hint.used {
    background: var(--border-color);
    color: var(--text-secondary);
    cursor: not-allowed;
}

.btn-result {
    background: #27ae60;
    color: white;
    width: 100%;
}

.btn-result:hover {
    background: #219a52;
}


.ai-results-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    max-width: 600px;
    width: 100%;
}

.ai-results-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.ai-results-score {
    margin-bottom: 30px;
}

.ai-score-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.ai-score-percent {
    display: block;
    font-size: 1.5rem;
    color: #27ae60;
}

.ai-results-breakdown {
    display: none;
    margin-bottom: 30px;
    text-align: left;
}

.ai-results-list {
    max-height: 300px;
    overflow-y: auto;
}

.ai-result-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
}

.ai-result-item.correct {
    background: rgba(39, 174, 96, 0.1);
    border-color: rgba(39, 174, 96, 0.3);
}

.ai-result-item.incorrect {
    background: rgba(231, 76, 60, 0.1);
    border-color: rgba(231, 76, 60, 0.3);
}

.ai-result-number {
    font-weight: 600;
    min-width: 30px;
}

.ai-result-icon {
    font-size: 1.2rem;
}

.ai-result-item.correct .ai-result-icon {
    color: #27ae60;
}

.ai-result-item.incorrect .ai-result-icon {
    color: #e74c3c;
}

.ai-result-answer {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.ai-result-answer .user-answer {
    display: block;
    margin-bottom: 6px;
    padding-bottom: 6px;
    border-bottom: 1px dashed var(--border-color);
}

.ai-result-answer .correct-answer {
    display: block;
    color: #27ae60;
    font-weight: 500;
}


.ai-result-content {
    flex: 1;
}

.ai-result-question {
    color: var(--text-primary);
    margin-bottom: 10px;
}

.ai-result-answers {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ai-result-answers > div {
    padding: 8px 12px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .ai-result-answers > div {
    background: rgba(255, 255, 255, 0.05);
}

.ai-result-answers .user-ans {
    color: var(--text-primary) !important;
}

.ai-result-answers .correct-ans {
    color: #27ae60 !important;
}

.test-results-breakdown {
    display: grid;
    gap: 10px;
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 24px;
    text-align: left;
}

.test-results-breakdown.hidden {
    display: none !important;
}

.test-result-item {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
}

.test-result-item.correct {
    background: rgba(39, 174, 96, 0.1);
    border-color: rgba(39, 174, 96, 0.3);
}

.test-result-item.incorrect {
    background: rgba(231, 76, 60, 0.1);
    border-color: rgba(231, 76, 60, 0.3);
}

.test-result-question {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 8px;
}

.test-result-meta {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.45;
}

.ai-results-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}


@media (max-width: 768px) {
    .ai-material-options {
        gap: 10px;
    }
    
    .ai-flashcard {
        height: 250px;
    }
    
    .ai-flashcard-front p,
    .ai-flashcard-back p {
        font-size: 1rem;
    }
    
    .ai-flashcard-buttons {
        flex-direction: column;
    }
    
    .ai-score-btn {
        width: 100%;
    }
    
    .ai-test-navigation {
        flex-wrap: wrap;
    }
    
    .ai-complete-card {
        padding: 30px 20px;
    }
    
    .ai-results-card {
        padding: 30px 20px;
    }
    
    .ai-score-number {
        font-size: 2.5rem;
    }
    
    .ai-plan-title {
        display: none;
    }
    
    .ai-plan-item {
        padding: 8px 12px;
    }
    
    .ai-learn-view-tabs {
        gap: 5px;
    }
    
    .ai-view-tab {
        padding: 8px 12px;
        font-size: 0.85rem;
    }
    
    .ai-learn-navigation {
        flex-direction: column;
    }
    
    .ai-count-options {
        gap: 8px;
    }
    
    .ai-count-btn {
        width: 55px;
        height: 55px;
        font-size: 1.25rem;
    }
}


[data-theme="dark"] .ai-flashcard-front {
    background: linear-gradient(135deg, #2c3e50, #34495e);
}

[data-theme="dark"] .ai-loading-content {
    color: var(--text-primary);
}

[data-theme="dark"] .ai-selected-file {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

[data-theme="pixel"] .ai-material-option,
[data-theme="pixel"] .ai-plan-item,
[data-theme="pixel"] .ai-view-tab,
[data-theme="pixel"] .ai-learn-content,
[data-theme="pixel"] .ai-learn-question-card,
[data-theme="pixel"] .ai-question-card,
[data-theme="pixel"] .ai-complete-card,
[data-theme="pixel"] .ai-results-card,
[data-theme="pixel"] .ai-flashcard-front,
[data-theme="pixel"] .ai-flashcard-back,
[data-theme="pixel"] .ai-nav-btn,
[data-theme="pixel"] .ai-count-btn {
    border-radius: 0;
}

[data-theme="pixel"] .ai-selected-file {
    border-radius: 0;
    border-width: 2px;
    background: rgba(12, 16, 28, 0.92);
    color: #f4d35e;
    box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.45);
}

[data-theme="flow"] .ai-learn-content,
[data-theme="flow"] .ai-question-card,
[data-theme="flow"] .ai-complete-card,
[data-theme="flow"] .ai-results-card {
    border: 1px solid rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .ai-selected-file {
    background: rgba(0, 255, 65, 0.08);
    border-color: rgba(0, 255, 65, 0.45);
    color: #b8ffc8;
}

[data-theme="flow"] .ai-flashcard-front {
    background: linear-gradient(135deg, rgba(0, 255, 65, 0.3), rgba(0, 200, 50, 0.4));
    border: 1px solid rgba(0, 255, 65, 0.5);
}

/* ==================== AI TEACHER ENHANCED BUTTON STYLES ==================== */


.ai-test-content {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 5px;
    margin-bottom: 20px;
}


.ai-answer-btn,
.ai-learn-answer-btn {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 500;
}

.ai-answer-btn:hover:not(:disabled),
.ai-learn-answer-btn:hover:not(:disabled) {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
    transform: translateX(5px);
}

.ai-answer-btn.correct,
.ai-learn-answer-btn.correct {
    border-color: #27ae60 !important;
    background: rgba(39, 174, 96, 0.15) !important;
    color: #27ae60;
    font-weight: 600;
}

.ai-answer-btn.incorrect,
.ai-learn-answer-btn.incorrect {
    border-color: #e74c3c !important;
    background: rgba(231, 76, 60, 0.15) !important;
    color: #e74c3c;
}

.ai-answer-btn.selected:not(.correct):not(.incorrect) {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}


.ai-nav-btn {
    font-weight: 700;
    transition: all 0.2s ease;
}

.ai-nav-btn:hover {
    transform: scale(1.1);
    border-color: var(--color-primary);
}

.ai-nav-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.ai-nav-btn.correct {
    background: rgba(39, 174, 96, 0.2);
    border-color: #27ae60;
    color: #27ae60;
}

.ai-nav-btn.incorrect {
    background: rgba(231, 76, 60, 0.2);
    border-color: #e74c3c;
    color: #e74c3c;
}


.btn-hint {
    background: linear-gradient(135deg, #f39c12, #e67e22);
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(243, 156, 18, 0.3);
}

.btn-hint:hover:not(.used) {
    background: linear-gradient(135deg, #e67e22, #d35400);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.4);
}

.btn-hint.used {
    background: var(--border-color);
    color: var(--text-secondary);
    box-shadow: none;
}


.btn-result {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(39, 174, 96, 0.3);
}

.btn-result:hover {
    background: linear-gradient(135deg, #219a52, #27ae60);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.4);
}


.ai-score-btn {
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease;
}

.ai-score-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.ai-score-btn.knew {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
}

.ai-score-btn.knew:hover {
    background: linear-gradient(135deg, #219a52, #27ae60);
}

.ai-score-btn.didnt-know {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.ai-score-btn.didnt-know:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
}


.ai-view-tab {
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.ai-view-tab:hover:not(.active) {
    background: var(--bg-secondary);
    border-color: var(--color-primary);
}

.ai-view-tab.active {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
}


.ai-plan-item {
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.ai-plan-item:hover:not(.active) {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.ai-plan-item.active {
    box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.2);
}

.ai-plan-item.completed {
    background: rgba(39, 174, 96, 0.15);
}

.ai-plan-item.partial {
    background: rgba(243, 156, 18, 0.18);
}

.ai-plan-item.missed {
    background: rgba(231, 76, 60, 0.2);
}


.ai-count-btn {
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.ai-count-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}


.ai-results-actions .btn {
    padding: 15px 30px;
    font-weight: 600;
    font-size: 1rem;
}

.ai-results-actions .btn-primary {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
    box-shadow: 0 2px 8px rgba(39, 174, 96, 0.3);
}

.ai-results-actions .btn-primary:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, #219a52, #27ae60);
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.4);
}

.ai-results-actions .btn-secondary {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.3);
}

.ai-results-actions .btn-secondary:hover {
    background: linear-gradient(135deg, #2980b9, #2471a3);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
    color: white;
}

.ai-results-actions .btn-outline {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.ai-results-actions .btn-outline:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}


[data-theme="dark"] .ai-results-actions .btn-primary {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
}

[data-theme="dark"] .ai-results-actions .btn-secondary {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
}

[data-theme="dark"] .ai-results-actions .btn-secondary:hover {
    background: linear-gradient(135deg, #2980b9, #2471a3);
    color: white;
}

[data-theme="dark"] .ai-results-actions .btn-outline {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
}

[data-theme="dark"] .ai-results-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}


[data-theme="pixel"] .ai-results-actions .btn {
    border-radius: 0;
    box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.3);
}


[data-theme="flow"] .ai-results-actions .btn-primary {
    background: linear-gradient(135deg, rgba(0, 255, 65, 0.7), rgba(0, 200, 50, 0.8));
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.4);
    color: #0a0a0f;
}

[data-theme="flow"] .ai-results-actions .btn-secondary {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.8), rgba(41, 128, 185, 0.9));
    box-shadow: 0 0 15px rgba(52, 152, 219, 0.4);
    color: white;
}

[data-theme="flow"] .ai-results-actions .btn-outline {
    background: rgba(0, 255, 65, 0.1);
    border-color: rgba(0, 255, 65, 0.4);
}

[data-theme="flow"] .ai-results-actions .btn-outline:hover {
    background: rgba(0, 255, 65, 0.2);
    border-color: rgba(0, 255, 65, 0.6);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}


[data-theme="dark"] .ai-answer-btn,
[data-theme="dark"] .ai-learn-answer-btn {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .ai-answer-btn:hover:not(:disabled),
[data-theme="dark"] .ai-learn-answer-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-primary);
}

[data-theme="dark"] .ai-nav-btn {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .ai-nav-btn.active {
    background: var(--color-primary);
    color: #0a0a0f;
    border-color: var(--color-primary);
}

[data-theme="dark"] .ai-nav-btn.answered {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

[data-theme="dark"] .ai-nav-btn.correct {
    background: rgba(39, 174, 96, 0.3);
    border-color: #27ae60;
    color: #27ae60;
}

[data-theme="dark"] .ai-nav-btn.incorrect {
    background: rgba(231, 76, 60, 0.3);
    border-color: #e74c3c;
    color: #e74c3c;
}

[data-theme="dark"] .ai-plan-item.partial {
    background: rgba(243, 156, 18, 0.22);
    border-color: rgba(243, 156, 18, 0.65);
}

[data-theme="dark"] .ai-plan-item.missed {
    background: rgba(231, 76, 60, 0.22);
    border-color: rgba(231, 76, 60, 0.65);
}


[data-theme="dark"] .ai-answer-btn.selected:not(.correct):not(.incorrect) {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--color-primary);
    color: var(--text-primary);
}

[data-theme="dark"] .ai-test-content {
    background: rgba(255, 255, 255, 0.03);
}


[data-theme="pixel"] .ai-answer-btn,
[data-theme="pixel"] .ai-learn-answer-btn {
    border-width: 3px;
    box-shadow: 3px 3px 0 var(--border-color);
}

[data-theme="pixel"] .ai-answer-btn:hover:not(:disabled),
[data-theme="pixel"] .ai-learn-answer-btn:hover:not(:disabled) {
    box-shadow: 5px 5px 0 var(--color-primary);
}

[data-theme="pixel"] .ai-score-btn {
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.3);
}

[data-theme="pixel"] .btn-hint,
[data-theme="pixel"] .btn-result {
    box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.3);
}

[data-theme="pixel"] .ai-nav-btn.active {
    background: var(--color-primary);
    color: #1a1c2c;
    border-color: var(--color-primary);
    box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.4);
}

[data-theme="pixel"] .ai-nav-btn.answered {
    background: rgba(244, 211, 94, 0.3);
    border-color: #f4d35e;
}

[data-theme="pixel"] .ai-nav-btn {
    font-family: var(--font-title);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

[data-theme="pixel"] .ai-nav-btn.correct {
    background: #7ef29c;
    border-color: #7ef29c;
    color: #12182b;
    box-shadow: 3px 3px 0 rgba(16, 55, 32, 0.85);
}

[data-theme="pixel"] .ai-nav-btn.incorrect {
    background: #ff6f6f;
    border-color: #ff6f6f;
    color: #2a1010;
    box-shadow: 3px 3px 0 rgba(87, 25, 25, 0.9);
}

[data-theme="pixel"] .ai-plan-item.partial {
    border-color: #f4d35e;
    background: rgba(244, 211, 94, 0.28);
}

[data-theme="pixel"] .ai-plan-item.missed {
    border-color: #ff6f6f;
    background: rgba(255, 111, 111, 0.24);
}


[data-theme="flow"] .ai-answer-btn,
[data-theme="flow"] .ai-learn-answer-btn {
    border-color: rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .ai-answer-btn:hover:not(:disabled),
[data-theme="flow"] .ai-learn-answer-btn:hover:not(:disabled) {
    border-color: rgba(0, 255, 65, 0.7);
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .ai-answer-btn.correct,
[data-theme="flow"] .ai-learn-answer-btn.correct {
    border-color: rgba(0, 255, 65, 0.8);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
}

[data-theme="flow"] .ai-nav-btn {
    border-color: rgba(0, 255, 65, 0.3);
    background: rgba(0, 255, 65, 0.05);
    font-family: var(--font-title);
    letter-spacing: 0.04em;
}

[data-theme="flow"] .ai-nav-btn:hover {
    border-color: rgba(0, 255, 65, 0.6);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

[data-theme="flow"] .ai-nav-btn.active {
    background: rgba(0, 255, 65, 0.8);
    color: #0a0a0f;
    border-color: rgba(0, 255, 65, 0.9);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.5);
}

[data-theme="flow"] .ai-nav-btn.answered {
    background: rgba(0, 255, 65, 0.2);
    border-color: rgba(0, 255, 65, 0.5);
}

[data-theme="flow"] .ai-nav-btn.correct {
    background: rgba(0, 255, 65, 0.3);
    border-color: rgba(0, 255, 65, 0.7);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.4);
}

[data-theme="flow"] .ai-nav-btn.incorrect {
    background: rgba(231, 76, 60, 0.2);
    border-color: #e74c3c;
    box-shadow: 0 0 10px rgba(231, 76, 60, 0.4);
}

[data-theme="flow"] .ai-plan-item.partial {
    border-color: rgba(255, 199, 94, 0.65);
    background: rgba(255, 199, 94, 0.16);
    box-shadow: 0 0 10px rgba(255, 199, 94, 0.25);
}

[data-theme="flow"] .ai-plan-item.missed {
    border-color: rgba(255, 88, 88, 0.68);
    background: rgba(255, 88, 88, 0.16);
    box-shadow: 0 0 10px rgba(255, 88, 88, 0.25);
}

[data-theme="flow"] .ai-test-content {
    border: 1px solid rgba(0, 255, 65, 0.2);
}

[data-theme="flow"] .btn-hint {
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.8), rgba(230, 126, 34, 0.8));
    box-shadow: 0 0 15px rgba(243, 156, 18, 0.3);
}

[data-theme="flow"] .btn-result {
    background: linear-gradient(135deg, rgba(0, 255, 65, 0.6), rgba(0, 200, 50, 0.7));
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.3);
}

/* ==================== PERFORMANCE / DEVICE ADAPTATION ==================== */
.library-grid,
.favorites-grid,
.classmates-list {
    content-visibility: auto;
    contain-intrinsic-size: 1px 760px;
}

html.reduced-motion .shooting-stars-basic,
html.reduced-motion .grid-lines {
    display: none;
}

html.reduced-motion .bg-basic .grid-overlay,
html.reduced-motion .bg-dark .grid-overlay,
html.reduced-motion .bg-pixel .bg-image,
html.reduced-motion .grid-line {
    animation: none !important;
    transform: none !important;
    filter: none !important;
}

html.reduced-motion .blur-overlay,
html.reduced-motion .container,
html.reduced-motion .side-panel,
html.reduced-motion .modal {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

@media (prefers-reduced-motion: reduce) {
    .shooting-stars-basic,
    .grid-lines {
        display: none;
    }

    .bg-basic .grid-overlay,
    .bg-dark .grid-overlay,
    .bg-pixel .bg-image,
    .grid-line,
    .toast {
        animation: none !important;
        transition: none !important;
        transform: none !important;
        filter: none !important;
    }
}

@media (max-width: 900px), (hover: none), (pointer: coarse) {
    .library-grid,
    .favorites-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 12px;
    }

    .quicklook-actions {
        flex-wrap: wrap;
    }

    .quicklook-actions .btn {
        flex: 1 1 160px;
        min-width: 0;
    }

    .btn,
    .action-card,
    .menu-item,
    .subject-action-card,
    .material-action-card,
    .ai-count-btn,
    .ai-answer-btn,
    .ai-learn-answer-btn,
    .ai-nav-btn {
        transition: none !important;
    }

    .btn:hover,
    .action-card:hover,
    .quick-action-btn:hover,
    .ent-card:hover,
    .menu-item:hover,
    .subject-action-card:hover,
    .material-action-card:hover,
    .ai-count-btn:hover,
    .ai-answer-btn:hover,
    .ai-learn-answer-btn:hover,
    .ai-nav-btn:hover,
    .faq-tab:hover,
    .card-action-btn:hover,
    .test-question-delete:hover,
    .score-btn:hover {
        animation: none !important;
        transform: none !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
}