/* ===================================
   The Oddity — Daily Trivia Game
   Refined, engaging, delightful
   =================================== */

/* Dark theme (default) */
:root,
[data-theme="dark"] {
    --color-bg: #0a0a0f;
    --color-bg-card: #12121a;
    --color-bg-hover: #1a1a25;
    --color-text: #f5f5f7;
    --color-text-muted: #9898a8;
    --color-text-subtle: #686878;
    --color-accent: #a78bfa;
    --color-accent-glow: rgba(167, 139, 250, 0.25);
    --color-accent-soft: rgba(167, 139, 250, 0.1);
    --color-correct: #34d399;
    --color-correct-glow: rgba(52, 211, 153, 0.2);
    --color-wrong: #f87171;
    --color-wrong-glow: rgba(248, 113, 113, 0.2);
    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-hover: rgba(255, 255, 255, 0.12);
    --color-gold: #fbbf24;
    
    --font-main: 'Space Grotesk', -apple-system, sans-serif;
    --font-display: 'Fraunces', Georgia, serif;
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    --shadow-glow: 0 0 60px var(--color-accent-glow);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
}

/* Light theme */
[data-theme="light"] {
    --color-bg: #f5f5f7;
    --color-bg-card: #ffffff;
    --color-bg-hover: #f0f0f2;
    --color-text: #1a1a2e;
    --color-text-muted: #6b6b80;
    --color-text-subtle: #9898a8;
    --color-accent: #7c3aed;
    --color-accent-glow: rgba(124, 58, 237, 0.2);
    --color-accent-soft: rgba(124, 58, 237, 0.08);
    --color-correct: #059669;
    --color-correct-glow: rgba(5, 150, 105, 0.15);
    --color-wrong: #dc2626;
    --color-wrong-glow: rgba(220, 38, 38, 0.15);
    --color-border: rgba(0, 0, 0, 0.08);
    --color-border-hover: rgba(0, 0, 0, 0.15);
    --color-gold: #d97706;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08);
}

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

html, body {
    height: 100%;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background-image: 
        radial-gradient(ellipse at 50% 0%, rgba(167, 139, 250, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 0% 100%, rgba(52, 211, 153, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 100% 100%, rgba(251, 191, 36, 0.04) 0%, transparent 50%);
}

.container {
    width: 100%;
    max-width: 440px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Header */
.header {
    text-align: center;
    padding-top: 8px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 6px;
}

.logo-icon {
    font-size: 1.75rem;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-4px) rotate(5deg); }
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

/* Cards */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 32px 28px;
    text-align: center;
    box-shadow: var(--shadow-card);
}

/* Screens */
.screen {
    display: none;
}

.screen.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Start Screen */
.intro-card h1 {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--color-accent), #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-text {
    color: var(--color-text-muted);
    margin-bottom: 24px;
    font-size: 1rem;
    line-height: 1.7;
}

.daily-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.daily-badge {
    background: linear-gradient(135deg, var(--color-accent), #8b5cf6);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

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

/* Streak Display */
.streak-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 24px;
    padding: 12px 20px;
    background: var(--color-accent-soft);
    border-radius: var(--radius-md);
    border: 1px solid rgba(167, 139, 250, 0.2);
}

.streak-fire {
    font-size: 1.25rem;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.streak-count {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

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

.intro-note {
    margin-top: 16px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    opacity: 0.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px 36px;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), #8b5cf6);
    color: white;
    width: 100%;
    box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--color-accent-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--color-bg-hover);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg-card);
    border-color: var(--color-accent);
}

.btn-arrow {
    transition: transform 0.25s ease;
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* Progress Bar */
.progress-bar {
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    margin-bottom: 16px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), #ec4899);
    border-radius: 2px;
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.question-count {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

/* Question Card */
.question-label {
    font-size: 0.8rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 20px;
    font-weight: 600;
}

.question-text {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 400;
    line-height: 1.5;
    margin-bottom: 32px;
    min-height: 100px;
}

.answer-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.btn-answer {
    flex-direction: column;
    padding: 24px 16px;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    color: var(--color-text);
    border-radius: var(--radius-lg);
}

.btn-answer:hover {
    border-color: var(--color-accent);
    background: var(--color-bg-hover);
}

.btn-answer[data-answer="real"]:hover {
    border-color: var(--color-correct);
    background: var(--color-correct-glow);
}

.btn-answer[data-answer="fake"]:hover {
    border-color: var(--color-wrong);
    background: var(--color-wrong-glow);
}

.answer-emoji {
    font-size: 1.75rem;
    margin-bottom: 4px;
}

.answer-hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* Result Card */
.result-card.correct {
    border-color: var(--color-correct);
    box-shadow: 0 0 40px var(--color-correct-glow);
}

.result-card.wrong {
    border-color: var(--color-wrong);
    box-shadow: 0 0 40px var(--color-wrong-glow);
}

.result-icon {
    font-size: 3.5rem;
    margin-bottom: 8px;
}

.result-verdict {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.result-card.correct .result-verdict { color: var(--color-correct); }
.result-card.wrong .result-verdict { color: var(--color-wrong); }

.result-answer {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.result-explanation {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 28px;
    line-height: 1.7;
}

/* Final Screen */
.final-icon {
    font-size: 4rem;
    margin-bottom: 12px;
}

.final-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.final-score {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
}

.score-number {
    font-family: var(--font-display);
    font-size: 4.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent), #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.score-label {
    font-size: 1.25rem;
    color: var(--color-text-muted);
}

.score-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    margin-bottom: 20px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-correct), var(--color-accent));
    border-radius: 4px;
    transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Streak Update */
.streak-update {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.1), rgba(251, 191, 36, 0.05));
    border: 1px solid rgba(251, 191, 36, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    color: var(--color-gold);
    font-weight: 600;
}

/* Share Section */
.share-section {
    margin-bottom: 24px;
}

.share-section p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

.share-preview {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 16px;
    font-size: 1.5rem;
    letter-spacing: 0.15em;
    margin-bottom: 12px;
    user-select: all;
    border: 1px solid var(--color-border);
}

/* Stats Section */
.stats-section {
    padding: 20px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 24px;
}

.stats-section h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
}

/* Next Game */
.next-game {
    margin-bottom: 24px;
}

.next-game p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.countdown {
    font-family: var(--font-main);
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent), #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.05em;
}

/* Username Section */
.username-section {
    padding: 20px 0;
    border-top: 1px solid var(--color-border);
    margin-bottom: 20px;
}

.username-section > p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

.username-input-group {
    display: flex;
    gap: 8px;
}

.username-input-group input {
    flex: 1;
    padding: 12px 16px;
    font-family: var(--font-main);
    font-size: 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    outline: none;
    transition: border-color 0.2s ease;
}

.username-input-group input:focus {
    border-color: var(--color-accent);
}

.username-input-group input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.6;
}

.btn-small {
    padding: 12px 20px;
    font-size: 0.9rem;
    background: var(--color-accent);
    color: white;
    border-radius: var(--radius-md);
}

.btn-small:hover {
    background: #8b5cf6;
}

.username-error {
    font-size: 0.8rem;
    color: var(--color-wrong);
    margin-top: 8px;
    min-height: 1.2em;
}

/* Leaderboard Section */
.leaderboard-section {
    padding: 20px 0;
    border-top: 1px solid var(--color-border);
    margin-bottom: 20px;
}

.leaderboard-section h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    text-align: center;
}

.leaderboard {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.leaderboard-loading {
    padding: 24px;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.leaderboard-row {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    transition: background 0.2s ease;
}

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

.leaderboard-row:hover {
    background: var(--color-bg-hover);
}

.leaderboard-row.is-you {
    background: var(--color-accent-soft);
}

.leaderboard-rank {
    width: 32px;
    font-weight: 700;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.leaderboard-rank.gold { color: #fbbf24; }
.leaderboard-rank.silver { color: #9ca3af; }
.leaderboard-rank.bronze { color: #d97706; }

.leaderboard-name {
    flex: 1;
    font-weight: 500;
    color: var(--color-text);
}

.leaderboard-name.is-you::after {
    content: ' (you)';
    color: var(--color-accent);
    font-weight: 400;
    font-size: 0.85em;
}

.leaderboard-streak {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--color-gold);
    font-weight: 600;
}

.leaderboard-streak .fire {
    font-size: 0.9em;
}

.player-rank {
    margin-top: 12px;
    padding: 12px 16px;
    background: var(--color-accent-soft);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.player-rank strong {
    color: var(--color-accent);
}

.leaderboard-empty {
    padding: 24px;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Ad Container */
.ad-container {
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.ad-placeholder {
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Footer */
.footer {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: var(--color-text-muted);
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--color-accent);
}

.footer-sep {
    margin: 0 10px;
    opacity: 0.4;
}

/* Legal Pages */
.legal-content {
    padding: 24px 0;
}

.legal-content .card {
    text-align: left;
}

.legal-content h1 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--color-accent), #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.legal-content h2 {
    font-size: 1.15rem;
    margin-top: 24px;
    margin-bottom: 12px;
    color: var(--color-text);
}

.legal-content h3 {
    font-size: 1rem;
    margin-top: 16px;
    margin-bottom: 8px;
    color: var(--color-text-muted);
}

.legal-content p,
.legal-content li {
    color: var(--color-text-muted);
    line-height: 1.7;
}

.legal-content ul {
    margin: 12px 0;
    padding-left: 20px;
}

.legal-content li {
    margin-bottom: 6px;
}

.legal-content a {
    color: var(--color-accent);
}

.legal-date {
    font-size: 0.8rem;
    opacity: 0.6;
}

.back-link {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

/* Settings Button */
.settings-btn {
    position: absolute;
    top: 0;
    right: 0;
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 8px;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.settings-btn:hover {
    opacity: 1;
}

/* Settings Modal */
.settings-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.settings-modal.show {
    opacity: 1;
    visibility: visible;
}

.settings-content {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 28px;
    max-width: 360px;
    width: 100%;
    transform: translateY(20px);
    transition: transform 0.2s ease;
}

.settings-modal.show .settings-content {
    transform: translateY(0);
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.settings-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
}

.settings-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: 4px;
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
}

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

.settings-label {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.settings-label span {
    font-weight: 500;
}

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

/* Toggle Switch */
.toggle {
    position: relative;
    width: 52px;
    height: 28px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 28px;
    transition: background 0.2s ease;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: var(--color-text-muted);
    border-radius: 50%;
    transition: transform 0.2s ease, background 0.2s ease;
}

.toggle input:checked + .toggle-slider {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(24px);
    background: white;
}

/* Theme Picker */
.theme-picker {
    display: flex;
    gap: 8px;
}

.theme-btn {
    padding: 8px 14px;
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.theme-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.theme-btn:hover:not(.active) {
    border-color: var(--color-accent);
}

/* Achievement Toast */
.achievement-toast {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: linear-gradient(135deg, var(--color-accent), #8b5cf6);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 8px 32px var(--color-accent-glow);
    z-index: 2000;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.achievement-toast.show {
    transform: translateX(-50%) translateY(0);
}

.achievement-toast-icon {
    font-size: 2rem;
}

.achievement-toast-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.achievement-toast-name {
    font-weight: 700;
    font-size: 1.1rem;
}

/* Achievements Grid (for modal/page) */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 16px;
}

.achievement-item {
    text-align: center;
    padding: 16px 8px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.achievement-item.locked {
    opacity: 0.4;
    filter: grayscale(1);
}

.achievement-item .icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

.achievement-item .name {
    font-size: 0.75rem;
    font-weight: 600;
}

/* Mobile */
@media (max-width: 480px) {
    body {
        padding: 16px;
        align-items: flex-start;
        padding-top: 24px;
    }
    
    .card {
        padding: 28px 22px;
        border-radius: var(--radius-lg);
    }
    
    .intro-card h1 {
        font-size: 1.875rem;
    }
    
    .question-text {
        font-size: 1.2rem;
    }
    
    .btn-answer {
        padding: 20px 12px;
    }
    
    .score-number {
        font-size: 3.5rem;
    }
    
    .stats-grid {
        gap: 8px;
    }
}