/* YFW Main Styles */

:root {
    /* Colors - Light Mode */
    --color-primary: #FFD93D;
    --color-primary-dark: #E6A700;
    --color-accent: #FF6B6B;
    --color-success: #4CAF50;
    --color-bg: #FFF9E6;
    --color-bg-secondary: #FFF5D6;
    --color-text: #333;
    --color-text-light: #666;
    --color-card-bg: #fff;
    --color-border: #ddd;
    --color-border-light: #eee;

    /* Category Colors */
    --cat-reflexes: #E74C3C;
    --cat-speed: #3498DB;
    --cat-memory: #9B59B6;
    --cat-strategy: #1ABC9C;
    --cat-words: #27AE60;
    --cat-perception: #F39C12;

    /* Typography */
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing & Sizing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    /* Shadows */
    --shadow-card: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-card-hover: 0 8px 20px rgba(0, 0, 0, 0.15);

    /* Focus */
    --focus-ring: 0 0 0 3px rgba(74, 144, 217, 0.5);
}

/* Dark Mode */
[data-theme="dark"] {
    --color-primary: #FFD93D;
    --color-primary-dark: #FFC107;
    --color-accent: #FF6B6B;
    --color-success: #66BB6A;
    --color-bg: #1a1a2e;
    --color-bg-secondary: #16213e;
    --color-text: #eee;
    --color-text-light: #aaa;
    --color-card-bg: #0f0f23;
    --color-border: #333;
    --color-border-light: #2a2a4a;

    /* Adjusted category colors for dark mode - slightly brighter */
    --cat-reflexes: #FF6B6B;
    --cat-speed: #5DADE2;
    --cat-memory: #BB8FCE;
    --cat-strategy: #48C9B0;
    --cat-words: #58D68D;
    --cat-perception: #F5B041;

    --shadow-card: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 8px 20px rgba(0, 0, 0, 0.4);
}

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

/* Skip Link (Accessibility) */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-text);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    z-index: 1000;
    text-decoration: none;
    font-weight: 600;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 1rem;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 0.5rem;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

/* Theme Toggle */
.theme-toggle {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.05);
}

.theme-toggle:active {
    transform: translateY(-50%) scale(0.95);
}

.theme-icon {
    font-size: 1.4rem;
    line-height: 1;
}

/* Show moon in light mode, sun in dark mode */
.theme-icon-dark {
    display: none;
}

[data-theme="dark"] .theme-icon-light {
    display: none;
}

[data-theme="dark"] .theme-icon-dark {
    display: block;
}

[data-theme="dark"] .theme-toggle {
    background: rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.5);
}

/* Progress Section */
.progress-section {
    background: var(--color-bg-secondary);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--color-border-light);
}

.progress-container {
    max-width: 400px;
    margin: 0 auto;
}

.progress-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--color-text);
}

.progress-emoji {
    font-size: 1.1rem;
}

.progress-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: 4px;
    transition: width 0.5s ease-out;
}

[data-theme="dark"] .progress-fill {
    background: linear-gradient(90deg, var(--color-primary) 0%, #FFB300 100%);
}

.logo {
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.2));
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.1) rotate(-5deg);
}

.header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.5);
}

.tagline {
    font-size: 1.1rem;
    color: var(--color-text-light);
    font-style: italic;
}

/* Main Content */
.main {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.games-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-text);
    border-bottom: 3px solid var(--color-primary);
    padding-bottom: 0.5rem;
    display: inline-block;
}

/* Filter Container */
.filter-container {
    margin-bottom: 1.5rem;
}

.search-container {
    margin-bottom: 1rem;
}

#game-search {
    width: 100%;
    max-width: 400px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: var(--font-main);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-card-bg);
    color: var(--color-text);
    transition: border-color 0.2s, box-shadow 0.2s;
}

#game-search:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 217, 61, 0.3);
}

#game-search::placeholder {
    color: var(--color-text-light);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-family: var(--font-main);
    background: var(--color-card-bg);
    border: 2px solid var(--color-border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.filter-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-bg);
}

.filter-btn.active {
    background: var(--color-primary);
    border-color: var(--color-text);
    font-weight: 600;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.15);
}

.filter-btn.active::before {
    content: '✓';
    margin-right: 0.25rem;
    font-size: 0.8rem;
}

.filter-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.filter-emoji {
    font-size: 1.1rem;
}

.filter-label {
    color: var(--color-text);
}

.filter-count {
    font-size: 0.8rem;
    color: var(--color-text-light);
    font-weight: 400;
}

.filter-btn.active .filter-count {
    color: var(--color-text);
}

/* Results count */
.results-count {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Game Card */
.game-card {
    background: var(--color-card-bg);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-card);
    transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
    outline: none;
    border-left: 4px solid transparent;
}

/* Category color borders */
.game-card[data-category="reflexes"] { border-left-color: var(--cat-reflexes); }
.game-card[data-category="speed"] { border-left-color: var(--cat-speed); }
.game-card[data-category="memory"] { border-left-color: var(--cat-memory); }
.game-card[data-category="strategy"] { border-left-color: var(--cat-strategy); }
.game-card[data-category="words"] { border-left-color: var(--cat-words); }
.game-card[data-category="perception"] { border-left-color: var(--cat-perception); }

/* Unplayed games */
.game-card.unplayed {
    opacity: 0.85;
}

.game-card.unplayed:hover {
    opacity: 1;
}

.game-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.game-card:active {
    transform: translateY(-2px) scale(0.98);
}

.game-card:focus-visible {
    box-shadow: var(--focus-ring), var(--shadow-card);
}

.game-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.game-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

/* NEW Badge */
.new-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--color-accent);
    color: white;
    border-radius: 4px;
    flex-shrink: 0;
}

/* Category Pill */
.category-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.6rem;
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 12px;
    color: var(--color-text-light);
}

.category-pill[data-category="reflexes"] { background: rgba(231, 76, 60, 0.1); color: #c0392b; }
.category-pill[data-category="speed"] { background: rgba(52, 152, 219, 0.1); color: #2980b9; }
.category-pill[data-category="memory"] { background: rgba(155, 89, 182, 0.1); color: #8e44ad; }
.category-pill[data-category="strategy"] { background: rgba(26, 188, 156, 0.1); color: #16a085; }
.category-pill[data-category="words"] { background: rgba(39, 174, 96, 0.1); color: #1e8449; }
.category-pill[data-category="perception"] { background: rgba(243, 156, 18, 0.1); color: #d68910; }

.category-emoji {
    font-size: 0.9rem;
}

.category-label {
    font-weight: 500;
}

.game-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.game-card .best-score {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border-light);
    font-size: 0.9rem;
    color: var(--color-primary-dark);
    font-weight: 600;
}

.game-card .best-score.unplayed-text {
    color: var(--color-text-light);
    font-weight: 400;
    font-style: italic;
}

/* Recently Played Section */
.recent-section {
    margin-bottom: 2rem;
}

.recent-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.recent-games {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}

.recent-games::-webkit-scrollbar {
    height: 4px;
}

.recent-games::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 2px;
}

.recent-games::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 2px;
}

.recent-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem 1rem;
    min-width: 100px;
    background: var(--color-card-bg);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-card);
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, box-shadow 0.2s;
    border-left: 3px solid transparent;
    flex-shrink: 0;
}

.recent-card[data-category="reflexes"] { border-left-color: var(--cat-reflexes); }
.recent-card[data-category="speed"] { border-left-color: var(--cat-speed); }
.recent-card[data-category="memory"] { border-left-color: var(--cat-memory); }
.recent-card[data-category="strategy"] { border-left-color: var(--cat-strategy); }
.recent-card[data-category="words"] { border-left-color: var(--cat-words); }
.recent-card[data-category="perception"] { border-left-color: var(--cat-perception); }

.recent-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
}

.recent-card:active {
    transform: scale(0.98);
}

.recent-emoji {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.recent-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    text-align: center;
    white-space: nowrap;
}

.recent-score {
    font-size: 0.75rem;
    color: var(--color-primary-dark);
    margin-top: 0.25rem;
}

/* Coming Soon / No Results State */
.coming-soon,
.no-results {
    background: var(--color-card-bg);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-card);
    grid-column: 1 / -1;
}

.coming-soon p,
.no-results p {
    font-size: 1.25rem;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.coming-soon .subtext,
.no-results .subtext {
    font-size: 1rem;
    color: var(--color-text-light);
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 1.25rem 1rem;
    font-size: 0.9rem;
}

[data-theme="dark"] .footer {
    background: #0a0a14;
}

.footer-links {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin: 0 0.75rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.footer-links a:active {
    transform: scale(0.95);
}

.footer-links a:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

.footer p {
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   Control Instructions System
   Used across all games for consistent UI
   ======================================== */

/* Control Pill - displays a key binding with label */
.control-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(128, 128, 128, 0.1);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--color-text-light);
    white-space: nowrap;
}

/* Keyboard key indicator */
.control-pill .key {
    display: inline-block;
    padding: 2px 8px;
    min-width: 24px;
    text-align: center;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-bottom-width: 2px;
    border-radius: 4px;
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--color-text);
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

/* Color variants for different control types */
.control-pill.movement .key {
    background: #E3F2FD;
    border-color: #90CAF9;
    color: #1565C0;
}

.control-pill.action .key {
    background: #E8F5E9;
    border-color: #A5D6A7;
    color: #2E7D32;
}

.control-pill.special .key {
    background: #FFF3E0;
    border-color: #FFCC80;
    color: #E65100;
}

/* Touch gesture indicator */
.control-pill .touch {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--color-primary, #FFD93D);
    border-radius: 50%;
    position: relative;
}

.control-pill .touch::after {
    content: '';
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
}

/* Two-finger touch indicator */
.control-pill .touch.two-finger {
    width: 32px;
}

.control-pill .touch.two-finger::before {
    content: '';
    position: absolute;
    left: 4px;
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
}

.control-pill .touch.two-finger::after {
    position: absolute;
    right: 4px;
}

/* Swipe indicator */
.control-pill .swipe {
    display: inline-block;
    width: 20px;
    height: 20px;
    position: relative;
}

.control-pill .swipe::before {
    content: '↔';
    font-size: 1rem;
    color: var(--color-primary-dark, #E6A700);
}

/* Controls container layouts */
.controls-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin: 0.75rem 0;
}

.controls-block {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    margin: 1rem 0;
}

.controls-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

/* Responsive visibility for device-specific controls */
.desktop-only {
    display: inline-flex;
}

.mobile-only {
    display: none;
}

@media (hover: none) and (pointer: coarse) {
    .desktop-only {
        display: none;
    }
    .mobile-only {
        display: inline-flex;
    }
}

/* Help button for complex games */
.help-btn {
    position: fixed;
    bottom: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.1);
    color: #666;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 100;
    transition: all 0.15s;
    font-family: var(--font-main);
}

.help-btn:hover {
    background: rgba(0, 0, 0, 0.15);
    transform: scale(1.05);
}

.help-btn:active {
    transform: scale(0.95);
}

/* Controls panel overlay */
.controls-panel {
    position: fixed;
    bottom: 60px;
    right: 15px;
    background: var(--color-card-bg);
    border-radius: var(--radius-md, 12px);
    padding: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 99;
    min-width: 200px;
    max-width: 280px;
}

.controls-panel.hidden {
    display: none;
}

.controls-panel h3 {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.controls-panel .controls-section {
    margin-bottom: 0.75rem;
}

.controls-panel .controls-section:last-child {
    margin-bottom: 0;
}

.controls-panel .controls-section h4 {
    font-size: 0.75rem;
    color: #999;
    margin-bottom: 0.25rem;
    font-weight: normal;
}

.controls-panel .controls-row {
    justify-content: flex-start;
}

/* ========================================
   End Control Instructions System
   ======================================== */

/* Share Button (used across all games) */
.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-main);
    color: var(--color-text);
    background: var(--color-card-bg);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    margin-top: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.share-btn .share-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.share-btn:active {
    transform: translateY(0) scale(0.97);
}

.share-btn.copied {
    background: linear-gradient(135deg, var(--color-success) 0%, #66BB6A 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.4);
}

.share-btn.copied .share-icon {
    display: none;
}

/* ========================================
   How to Play Section (SEO Content)
   ======================================== */

/* For games with fixed containers, make content scrollable */
.game-container.state-idle .content {
    overflow-y: auto;
    max-height: 100vh;
    padding-bottom: 5rem;
}

.how-to-play {
    background: var(--color-bg-secondary, #FFF5D6);
    border-radius: var(--radius-md, 12px);
    padding: 1.5rem;
    margin: 1.5rem auto 0;
    max-width: 500px;
    text-align: left;
}

.how-to-play h2 {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.how-to-play h2::before {
    content: '📖';
}

.how-to-play p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.how-to-play ol,
.how-to-play ul {
    font-size: 0.9rem;
    color: var(--color-text-light);
    padding-left: 1.25rem;
    margin-bottom: 0.75rem;
}

.how-to-play li {
    margin-bottom: 0.35rem;
}

.how-to-play h3 {
    font-size: 0.95rem;
    color: var(--color-text);
    margin: 1rem 0 0.5rem;
}

.how-to-play .fun-fact {
    background: rgba(255, 217, 61, 0.2);
    border-left: 3px solid var(--color-primary);
    padding: 0.75rem;
    border-radius: 0 var(--radius-sm, 8px) var(--radius-sm, 8px) 0;
    margin-top: 1rem;
}

.how-to-play .fun-fact p {
    margin: 0;
    font-style: italic;
}

/* Dark mode styling for how-to-play */
[data-theme="dark"] .how-to-play {
    background: var(--color-bg-secondary);
}

/* Hide during gameplay - cover all game states */
.state-playing .how-to-play,
.state-drawing .how-to-play,
.state-waiting .how-to-play,
.state-result .how-to-play,
.state-showing .how-to-play,
.state-input .how-to-play,
.state-gameover .how-to-play,
.state-countdown .how-to-play,
.state-guessing .how-to-play,
.state-tracing .how-to-play,
.state-active .how-to-play,
.state-feedback .how-to-play {
    display: none;
}

/* ========================================
   Related Games Section
   ======================================== */

.related-games {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border-light);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.related-games h3 {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
    text-align: center;
}

.related-games-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.related-game-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    background: var(--color-card-bg);
    border-radius: 20px;
    text-decoration: none;
    color: var(--color-text);
    font-size: 0.85rem;
    transition: all 0.2s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.related-game-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 8px rgba(0,0,0,0.15);
}

.related-game-emoji {
    font-size: 1rem;
}

/* Hide during gameplay - cover all game states */
.state-playing .related-games,
.state-drawing .related-games,
.state-waiting .related-games,
.state-result .related-games,
.state-showing .related-games,
.state-input .related-games,
.state-gameover .related-games,
.state-countdown .related-games,
.state-guessing .related-games,
.state-tracing .related-games,
.state-active .related-games,
.state-feedback .related-games {
    display: none;
}

/* ========================================
   Challenge System
   ======================================== */

/* Challenge Banner - shown before game when arriving via challenge link */
.challenge-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    animation: challenge-pulse 2s ease-in-out infinite;
}

@keyframes challenge-pulse {
    0%, 100% { box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15); }
    50% { box-shadow: 0 4px 16px rgba(255, 217, 61, 0.4); }
}

.challenge-banner .challenge-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text);
    opacity: 0.8;
    margin-bottom: 0.25rem;
}

.challenge-banner .challenge-target {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

/* Challenge Result - shown after game completion */
.challenge-result {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-top: 0.75rem;
    text-align: center;
}

.challenge-result.beaten {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.15) 0%, rgba(102, 187, 106, 0.15) 100%);
    border: 2px solid var(--color-success);
}

.challenge-result.not-beaten {
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
}

.challenge-result .result-emoji {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.challenge-result .result-message {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.challenge-result.beaten .result-message {
    color: var(--color-success);
}

.challenge-result .result-comparison {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Hide challenge banner during gameplay - cover all game states */
.state-playing .challenge-banner,
.state-drawing .challenge-banner,
.state-waiting .challenge-banner,
.state-result .challenge-banner,
.state-showing .challenge-banner,
.state-input .challenge-banner,
.state-gameover .challenge-banner,
.state-countdown .challenge-banner,
.state-guessing .challenge-banner,
.state-tracing .challenge-banner,
.state-active .challenge-banner,
.state-feedback .challenge-banner,
.state-ready .challenge-banner,
.state-too-early .challenge-banner {
    display: none;
}

/* ========================================
   PWA Install Banner
   ======================================== */

.install-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-card-bg);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.install-banner.visible {
    transform: translateY(0);
}

.install-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.install-logo {
    flex-shrink: 0;
    border-radius: 8px;
}

.install-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.install-text strong {
    font-size: 1rem;
    color: var(--color-text);
}

.install-text span {
    font-size: 0.85rem;
    color: var(--color-text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.install-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.install-btn {
    padding: 0.6rem 1.25rem;
    background: var(--color-primary);
    color: var(--color-text);
    border: none;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-main);
    cursor: pointer;
    transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
}

.install-btn:hover {
    background: var(--color-primary-dark);
    transform: scale(1.02);
}

.install-btn:active {
    transform: scale(0.98);
}

.install-dismiss {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--color-text-light);
    cursor: pointer;
    transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
}

.install-dismiss:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--color-text);
}

[data-theme="dark"] .install-dismiss:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 600px) {
    .header {
        padding: 1.5rem 1rem;
    }

    .header-top {
        flex-direction: row;
    }

    .logo-container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .theme-toggle {
        position: absolute;
        right: 0;
        top: 50%;
        width: 40px;
        height: 40px;
    }

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

    .header h1 {
        font-size: 1.5rem;
    }

    .progress-section {
        padding: 0.75rem 1rem;
    }

    .progress-text {
        font-size: 0.85rem;
    }

    .main {
        padding: 1rem;
    }

    #game-search {
        max-width: 100%;
    }

    .filter-buttons {
        gap: 0.4rem;
    }

    .filter-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.85rem;
    }

    .filter-label,
    .filter-count {
        display: none;
    }

    .filter-btn .filter-emoji {
        font-size: 1.2rem;
    }

    .filter-btn.active::before {
        display: none;
    }

    .games-grid {
        grid-template-columns: 1fr;
    }

    .game-card {
        padding: 1.25rem;
    }

    .category-pill {
        font-size: 0.75rem;
        padding: 0.2rem 0.5rem;
    }

    .share-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .share-btn .share-icon {
        width: 16px;
        height: 16px;
    }
}

/* ==========================================================================
   Consent Banner
   ========================================================================== */

.consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-card-bg);
    border-top: 1px solid var(--color-border);
    padding: 1rem;
    z-index: 10000;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    transform: translateY(100%);
    transition: transform 0.3s ease;
    visibility: hidden;
}

.consent-banner.show {
    transform: translateY(0);
    visibility: visible;
}

.consent-banner-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.consent-banner p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-text);
    flex: 1;
    min-width: 200px;
}

.consent-banner a {
    color: #996515;
    text-decoration: underline;
}

[data-theme="dark"] .consent-banner a {
    color: #d4a84b;
}

.consent-banner-buttons {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.consent-banner button {
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: transform 0.1s, opacity 0.2s;
}

.consent-banner button:hover {
    opacity: 0.9;
}

.consent-banner button:active {
    transform: scale(0.98);
}

.consent-banner button:focus-visible {
    outline: var(--focus-ring);
    outline-offset: 2px;
}

.consent-banner .consent-accept {
    background: var(--color-primary);
    color: #000;
}

.consent-banner .consent-reject {
    background: var(--color-bg-secondary);
    color: var(--color-text);
    border: 2px solid var(--color-text-light);
}

@media (max-width: 600px) {
    .consent-banner {
        padding: 0.875rem;
    }

    .consent-banner-content {
        flex-direction: column;
        align-items: stretch;
    }

    .consent-banner p {
        font-size: 0.875rem;
        text-align: center;
    }

    .consent-banner-buttons {
        justify-content: center;
    }
}

/* About/how-to-play section on game pages (crawlable content) */
.game-about {
    max-width: 640px;
    margin: 2rem auto 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--card-bg, #fff);
    border-radius: var(--radius-lg, 12px);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.08));
    text-align: left;
}
.game-about h2 {
    font-size: 1.15rem;
    margin: 0 0 0.5rem;
}
.game-about h3 {
    font-size: 1rem;
    margin: 1rem 0 0.35rem;
}
.game-about p {
    margin: 0;
    line-height: 1.55;
}
.game-about ul {
    margin: 0.25rem 0 0;
    padding-left: 1.25rem;
    line-height: 1.55;
}

/* Ad container: reserved, clearly separated from gameplay */
.ad-slot {
    width: min(100%, 728px);
    max-width: 728px;
    margin: 1.5rem auto;
    min-height: 90px;
    text-align: center;
}

/* Fullscreen games ship a fixed, viewport-filling .game-container plus
   in-flow content (.game-about and friends). Give the game the first
   viewport, let the page scroll to the content whenever a round is not
   in progress, and lock scrolling again during play. Specificity of the
   :has() selectors beats each game's plain html/body overflow rule. */
html:has(.game-container),
body:has(.game-container) {
    overflow-y: auto;
    overflow-x: hidden;
    height: auto;
}
html:has(.game-container.state-playing),
body:has(.game-container.state-playing) {
    overflow: hidden;
}
.game-about {
    position: relative;
    z-index: 60;
    background: #fffdf5;
}
/* Only pages whose game container is fixed need the first viewport
   reserved; main.js stamps this class after a computed-style check. */
html.yfw-fixed-game .game-about {
    margin-top: 100vh;
    margin-top: 100dvh;
}
.game-about ~ section:not(#consent-banner),
.game-about ~ nav {
    position: relative;
    z-index: 60;
    background: #fffdf5;
    max-width: 640px;
    margin: 1rem auto;
    border-radius: 12px;
    padding: 1rem 1.5rem;
}