@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Roboto+Mono:wght@300;400;700&family=Outfit:wght@300;400;600;800&family=Shippori+Mincho:wght@400;700;800&family=Noto+Serif+JP:wght@300;400;600;900&display=swap');

:root {
    /* Default Theme (Coral Rose) - Fallback */
    --accent-rgb: 255, 107, 129;
    --accent-color: #FF6B81;
    --accent-secondary: #E84A5F;
    --accent-dim: #99424F;
    --bg-color: #0a0608;
    --text-color: #FFF0F3;
    --text-muted: #FFB8C1;

    /* Derived Colors (Default) */
    --glass-bg: rgba(var(--accent-rgb), 0.08);
    --glass-border: rgba(var(--accent-rgb), 0.25);
    --accent-glow: rgba(var(--accent-rgb), 0.6);
}

/* --- Subject Themes --- */

/* English: Purple/Indigo */
body[data-subject="english"] {
    --accent-rgb: 99, 102, 241;
    --accent-color: #6366f1;
    --accent-secondary: #4f46e5;
    --accent-dim: #4338ca;
    --bg-color: #0f172a;
    /* Dark Slate */
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
}

/* Math: Cyan/Blue */
body[data-subject="math"] {
    --accent-rgb: 6, 182, 212;
    --accent-color: #06b6d4;
    --accent-secondary: #0891b2;
    --accent-dim: #155e75;
    --bg-color: #082f49;
    /* Dark Blue */
    --text-color: #ecfeff;
    --text-muted: #67e8f9;
}

/* --- SVG & Math Support --- */
.diagram-svg {
    display: block;
    margin: 10px auto;
    max-width: 100%;
    height: auto;
}

.math-svg {
    vertical-align: middle;
    display: inline-block;
}

.option-btn svg,
.choice-btn svg {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

/* Science: Emerald/Green */
body[data-subject="science"] {
    --accent-rgb: 16, 185, 129;
    --accent-color: #10b981;
    --accent-secondary: #059669;
    --accent-dim: #065f46;
    --bg-color: #022c22;
    /* Dark Green */
    --text-color: #ecfdf5;
    --text-muted: #6ee7b7;
}

/* Japanese: Fuji Purple + Tatami Green (和風) */
body[data-subject="japanese"] {
    --accent-rgb: 139, 108, 181;
    --accent-color: #8B6CB5;
    --accent-secondary: #8C9B4A;
    --accent-dim: #5C4280;
    --bg-color: #130e1f;
    /* 深い藤紺 */
    --text-color: #f3eeff;
    --text-muted: #b8a8d8;
}

/* Kobun (Classical Japanese) Theme */
body[data-subject="japanese"][data-theme="kobun"] {
    --accent-rgb: 139, 108, 181;
    /* 藤色 - Fuji Purple */
    --accent-color: #8B6CB5;
    --accent-secondary: #8C9B4A;
    /* 畳色 - Tatami Green */
    --accent-dim: #5C4280;
    --bg-color: #fdfcf0;
    /* Washi Paper White */
    --text-color: #27221f;
    /* Ink Black - Sumi-iro */
    --text-muted: #5e524d;
    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(139, 108, 181, 0.25);
    --accent-glow: rgba(139, 108, 181, 0.2);
}

body[data-subject="japanese"][data-theme="kobun"] #matrix-canvas {
    opacity: 0.15;
}

body[data-subject="japanese"][data-theme="kobun"] .ambient-bg {
    background: radial-gradient(circle at center, transparent 0%, rgba(253, 252, 240, 0.8) 100%),
        url('https://www.transparenttextures.com/patterns/natural-paper.png');
}

body[data-subject="japanese"][data-theme="kobun"] .question-text,
body[data-subject="japanese"][data-theme="kobun"] .sentence,
body[data-subject="japanese"][data-theme="kobun"] .exp-sentence {
    font-family: 'Shippori Mincho', 'Noto Serif JP', serif;
    font-weight: 600;
    line-height: 2;
}

body[data-subject="japanese"][data-theme="kobun"] .logo {
    font-family: 'Shippori Mincho', serif;
    font-weight: 800;
    text-shadow: none;
    letter-spacing: 4px;
}

body[data-subject="japanese"][data-theme="kobun"] .btn-primary,
body[data-subject="japanese"][data-theme="kobun"] .next-btn {
    font-family: 'Shippori Mincho', serif;
    font-weight: 700;
    box-shadow: none;
    border-radius: 4px;
}

/* Social: Amber/Orange/Gold */
body[data-subject="social"] {
    --accent-rgb: 245, 158, 11;
    --accent-color: #f59e0b;
    --accent-secondary: #d97706;
    --accent-dim: #92400e;
    --bg-color: #291d0a;
    /* Dark Brown */
    --text-color: #fffbeb;
    --text-muted: #fcd34d;
}

/* Re-calculate derived variables for attributes */
body[data-subject] {
    --glass-bg: rgba(var(--accent-rgb), 0.08);
    --glass-border: rgba(var(--accent-rgb), 0.25);
    --accent-glow: rgba(var(--accent-rgb), 0.6);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body,
html {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100vh;
    overflow-x: hidden;
    font-family: 'Outfit', 'Roboto Mono', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Background Effects */
#matrix-canvas,
#particles-canvas,
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

#matrix-canvas {
    opacity: 0.3;
}

#particles-canvas {
    z-index: 100;
}

.container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: 20px;
    background: radial-gradient(circle at center, transparent 0%, var(--bg-color) 120%);
}

/* Glassmorphism Panels */
.glass-panel,
.header-panel,
.question-card,
.quiz-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    border-radius: 16px;
    /* Removed overflow: hidden; to prevent explanation content from being cut off when animating */
}

/* --- Optimized Layouts --- */
.container {
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

/* Header Panel & Stats */
.header-panel {
    background: var(--glass-bg);
    /* Ensure glass background */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 30px;
    max-width: 1200px;
    margin: 60px auto 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    border-radius: 24px;
    text-align: center;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--accent-color);
    text-shadow: 0 0 20px var(--accent-glow);
    letter-spacing: 3px;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.stats {
    display: flex;
    justify-content: space-around;
    font-family: 'Orbitron', sans-serif;
    margin-top: 20px;
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -50%;
    /* Approximate spacing */
    top: 20%;
    height: 60%;
    width: 1px;
    background: rgba(255, 255, 255, 0.2);
    display: none;
    /* Hidden by default similar to vocab app logic, or adjust */
}

/* Add separators if needed, typically flex gap handles spacing */

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-color);
    text-shadow: 0 0 15px var(--accent-glow);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

/* Question/Quiz Card */
.question-card,
.quiz-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 30px;
    max-width: 1200px;
    margin: 0 auto 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.question-card:hover,
.quiz-card:hover {
    box-shadow: 0 6px 30px var(--accent-glow);
    border-color: var(--accent-color);
}

.question-text {
    font-size: 1.5rem;
    line-height: 1.7;
    margin: 20px 0 30px 0;
    color: var(--text-color);
    text-align: center;
    font-weight: 500;
}

/* Question Blank */
.blank {
    display: inline-block;
    min-width: 80px;
    border-bottom: 3px solid var(--accent-color);
    margin: 0 4px;
    transition: all 0.3s;
    box-shadow: 0 2px 0 var(--accent-glow);
}

.target-word {
    text-decoration: underline;
    text-decoration-thickness: 3px;
    text-underline-offset: 4px;
    color: var(--accent-color);
    font-weight: 700;
}

.sentence {
    font-size: 1.5rem;
    line-height: 1.8;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-color);
}

/* Options / Choices */
.options-grid,
.choices {
    display: grid;
    gap: 15px;
}

.option-btn,
.choice-btn {
    background: rgba(var(--accent-rgb), 0.05);
    border: 2px solid var(--glass-border);
    padding: 16px 20px;
    border-radius: 12px;
    color: var(--text-color);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 15px;
    font-family: inherit;
}

.choice-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-muted);
    border-radius: 50%;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.choice-btn:hover .choice-radio {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
}

.choice-btn.selected .choice-radio {
    border-color: var(--accent-color);
    background: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
}

.option-btn:hover,
.choice-btn:hover {
    background: rgba(var(--accent-rgb), 0.1);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateX(5px);
}

.option-btn.correct,
.choice-btn.selected {
    background: rgba(var(--accent-rgb), 0.2);
    border-color: var(--accent-color);
    box-shadow: 0 0 25px var(--accent-glow);
}

.option-btn.wrong {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    box-shadow: none;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    text-decoration: none;
    display: inline-block;
}

.btn-primary,
.next-btn,
.action-btn {
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.15), rgba(var(--accent-rgb), 0.1));
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.2);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
    text-align: center;
}

.btn-primary:hover,
.next-btn:hover,
.action-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 0 30px var(--accent-glow);
    transform: translateY(-2px);
}

/* Logo Display (Fixed top left) */
#logo-display {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 150;
    background: rgba(var(--accent-rgb), 0.12);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(var(--accent-rgb), 0.3);
    border-radius: 12px;
    padding: 8px 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

#logo-display:hover {
    background: rgba(var(--accent-rgb), 0.18);
    border-color: rgba(var(--accent-rgb), 0.5);
    box-shadow: 0 4px 30px rgba(var(--accent-rgb), 0.4);
}

#logo-display img {
    height: 35px;
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

/* Home Button (Fixed top right) */
.home-btn,
.back-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    background: rgba(var(--accent-rgb), 0.1);
    border: 2px solid rgba(var(--accent-rgb), 0.3);
    border-radius: 25px;
    color: var(--accent-color);
    text-decoration: none;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
    transition: all 0.3s ease;
    z-index: 150;
    display: flex;
    align-items: center;
    gap: 8px;
}

.home-btn:hover,
.back-btn:hover {
    background: rgba(var(--accent-rgb), 0.2);
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

/* Side Navigation Container */
.side-nav {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
    z-index: 150;
}

/* Base styles for buttons in the side nav */
.side-nav .home-btn,
.side-nav .resource-btn {
    position: static;
    /* Overriding fixed in home-btn */
    width: fit-content;
}

.resource-btn {
    padding: 8px 16px;
    background: rgba(var(--accent-rgb), 0.08);
    border: 1px solid rgba(var(--accent-rgb), 0.25);
    border-radius: 20px;
    color: var(--accent-color);
    text-decoration: none;
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.resource-btn:hover {
    background: rgba(var(--accent-rgb), 0.15);
    border-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateX(-5px);
}

.resource-btn .icon {
    font-size: 1.1rem;
}

/* Explanations (Enhanced from Cube Level 1) */
.explanation-section {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
    background: rgba(var(--accent-rgb), 0.05);
    border-radius: 12px;
    margin-top: 0;
    border: 1px solid transparent;
}

.explanation-section.show {
    max-height: 2000px;
    /* Increased to accommodate long content */
    margin-top: 30px;
    padding: 24px;
    border-color: rgba(var(--accent-rgb), 0.3);
}

.exp-title {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.exp-sentence {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 500;
}

.exp-translation {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* Grammar Pattern Box */
.grammar-pattern {
    background: rgba(var(--accent-rgb), 0.15);
    border-left: 3px solid var(--accent-color);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.grammar-pattern-title {
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 4px;
}

.grammar-pattern-text {
    color: var(--text-muted);
}

/* Wrong Options Section */
.wrong-options-title {
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 16px;
    font-size: 1rem;
}

.wrong-option-item {
    margin-bottom: 16px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border-left: 3px solid var(--accent-color);
}

.wrong-word {
    font-weight: 700;
    color: var(--accent-color);
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.wrong-meaning {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.wrong-example {
    font-style: italic;
    color: #e5e7eb;
    margin-bottom: 4px;
}

.wrong-example-translation {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Result Indicators (Correct/Wrong) used in Explanation */
.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.result-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 0;
    padding: 12px 24px;
    border-radius: 20px;
    animation: popIn 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.result-indicator.correct {
    background: rgba(16, 185, 129, 0.2);
    border: 2px solid #10b981;
    color: #10b981;
    flex-direction: column;
    align-items: flex-start;
}

.result-indicator.wrong {
    background: rgba(239, 68, 68, 0.2);
    border: 2px solid #ef4444;
    color: #ef4444;
}

.streak-text {
    font-size: 1rem;
    margin-top: 4px;
    opacity: 0.9;
    color: #fff;
}

.praise-message {
    font-size: 1.2rem;
    /* Adjusted size */
    margin-top: 8px;
    font-weight: 900;
    text-shadow: 0 0 10px currentColor;
    animation: glow 1s ease-in-out infinite alternate;
}

.praise-pop {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--accent-color);
    text-shadow: 0 0 15px var(--accent-glow);
    margin-top: 10px;
    animation: praisePop 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    display: block;
}

@keyframes praisePop {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Animations */
@keyframes glow {
    from {
        text-shadow: 0 0 10px currentColor;
    }

    to {
        text-shadow: 0 0 20px currentColor, 0 0 30px currentColor;
    }
}

@keyframes popIn {
    0% {
        transform: scale(0);
    }

    80% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Nav Buttons in Explanation */
.nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    gap: 16px;
}

.result-screen,
.final-score,
.final-view {
    text-align: center;
    padding: 40px;
    display: none;
    animation: fadeIn 0.5s;
}

/* Rankings */
.ranking-section {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(var(--accent-rgb), 0.3);
    animation: fadeIn 0.8s ease-out;
}

.ranking-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-bottom: 25px;
    text-shadow: 0 0 15px var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.ranking-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.ranking-table th {
    padding: 12px;
    text-align: left;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--glass-border);
}

.ranking-table td {
    padding: 15px 12px;
    border-bottom: 1px solid rgba(var(--accent-rgb), 0.1);
    font-size: 1rem;
}

.rank-num {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    color: var(--text-muted);
}

.rank-1 .rank-num { color: #ffd700; text-shadow: 0 0 10px rgba(255, 215, 0, 0.5); font-size: 1.4rem; }
.rank-2 .rank-num { color: #c0c0c0; text-shadow: 0 0 10px rgba(192, 192, 192, 0.5); font-size: 1.2rem; }
.rank-3 .rank-num { color: #cd7f32; text-shadow: 0 0 10px rgba(205, 127, 50, 0.5); font-size: 1.1rem; }

.rank-name {
    font-weight: 600;
}

.rank-time {
    font-family: 'Roboto Mono', monospace;
    color: var(--accent-color);
    text-align: right;
    font-weight: 700;
}

/* Submission Form */
.score-submission {
    background: rgba(var(--accent-rgb), 0.1);
    border: 1px solid var(--accent-color);
    padding: 25px;
    border-radius: 16px;
    margin-bottom: 30px;
    box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.2);
}

.submission-label {
    display: block;
    margin-bottom: 15px;
    font-weight: 600;
    font-size: 1.1rem;
}

.input-group {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.name-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 12px 15px;
    color: #fff;
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    transition: all 0.3s;
}

.name-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
    background: rgba(0, 0, 0, 0.5);
}

.submit-btn {
    padding: 12px 25px;
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    border-radius: 8px;
    font-weight: 800;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    transition: all 0.3s;
}

.submit-btn:hover:not(:disabled) {
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

.submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.result-view {
    display: none;
    margin-top: 20px;
}

.q-blank {
    border-bottom: 2px solid var(--accent-color);
    padding: 0 10px;
    color: var(--accent-color);
    font-weight: 700;
}

.final-score-display {
    font-size: 3.5rem;
    text-align: center;
    color: var(--accent-color);
    margin: 20px 0;
    font-family: 'Orbitron', sans-serif;
    text-shadow: 0 0 20px var(--accent-glow);
}

.result-icon {
    font-size: 4rem;
    margin: 20px 0;
    animation: bounce 1s infinite alternate;
}

.result-score {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    color: var(--accent-color);
    margin: 20px 0;
    text-shadow: 0 0 20px var(--accent-glow);
}

.result-message {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

@keyframes bounce {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(-15px);
    }
}

/* --- Transitions --- */
.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

.slide-up {
    animation: slideUp 0.5s ease-out forwards;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 640px) {
    .header-panel {
        padding: 20px;
        margin-top: 80px;
    }

    .stat-value {
        font-size: 1.8rem;
    }

    .question-text {
        font-size: 1.2rem;
    }

    .home-btn {
        top: 15px;
        right: 15px;
        padding: 8px 16px;
        font-size: 0.8rem;
    }

    #logo-display {
        top: 15px;
        left: 15px;
    }
}

/* =========================================
   Utility Components (Textarea, Toast, etc.)
   ========================================= */

/* Header (Simple text-based header) */
header.simple-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #333;
}

header.simple-header h1 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--accent-color);
    /* Was #5B8DBE */
    text-shadow: none;
}

header.simple-header .back-link {
    color: #9BA7B4;
    text-decoration: none;
    font-size: 0.9rem;
}

header.simple-header .back-link:hover {
    color: var(--text-color);
}

/* Tools Container (Plain layout) */
.tools-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Code Editor / Textarea */
textarea.code-editor {
    flex: 1;
    background: #1A2332;
    color: #A8E6CF;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 15px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    resize: none;
}

textarea.code-editor:focus {
    outline: 2px solid var(--accent-color);
}

/* Actions Row */
.actions-row {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #2ECC71;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: 1000;
}

.toast.show {
    opacity: 1;
}