:root{--sky: #87ceeb;--grass: #6daa5e;--earth: #8b6f47;--lantern: #ffa040;--cream: #fdf6e3;--warm-white: #fef9ef;--text: #3e3229;--text-soft: #6b5d50;--text-muted: #a0937e;--panel-bg: rgba(253, 246, 227, .95);--border: rgba(139, 111, 71, .2);--border-strong: rgba(139, 111, 71, .35);--accent: #e8816d;--accent-soft: #f0a58e;--font-display: "Quicksand", sans-serif;--font-body: "Nunito", sans-serif}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden;background:var(--sky);color:var(--text);font-family:var(--font-body);-webkit-font-smoothing:antialiased}#app{width:100%;height:100%;position:relative}#timeline-canvas{width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:1}.theme-toggle{position:fixed;top:14px;right:24px;z-index:20;padding:6px 16px;background:#ffffff1f;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.2);border-radius:20px;color:#ffffffd9;font-family:var(--font-display);font-size:11px;font-weight:600;letter-spacing:.08em;cursor:pointer;transition:all .3s ease;pointer-events:auto}.theme-toggle:hover{background:#fff3;border-color:#ffffff59;transform:translateY(-1px)}.top-bar{position:fixed;top:0;left:0;right:0;z-index:10;display:flex;justify-content:center;padding:16px 24px;pointer-events:none}.top-bar-title{font-family:var(--font-display);font-size:14px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--warm-white);text-shadow:0 1px 4px rgba(0,0,0,.15)}.year-display{position:fixed;left:24px;top:50%;transform:translateY(-50%);z-index:10;pointer-events:none}.year-value{font-family:var(--font-display);font-size:48px;font-weight:700;color:var(--warm-white);line-height:1;text-shadow:0 2px 8px rgba(0,0,0,.15);transition:all .5s 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ease;box-shadow:0 3px 12px #e8816d59}.explore-btn:hover{background:var(--accent-soft);transform:translateY(-1px);box-shadow:0 5px 16px #e8816d66}.swipe-hint{position:fixed;bottom:16px;left:50%;transform:translate(-50%);z-index:10;display:none;font-family:var(--font-body);font-size:12px;color:#ffffff80;animation:fadeInOut 3s ease infinite}.keyboard-hint{position:fixed;bottom:16px;left:50%;transform:translate(-50%);z-index:10;display:flex;gap:18px;font-family:var(--font-body);font-size:11px;color:#fff6}@keyframes fadeInOut{0%,to{opacity:.2}50%{opacity:.6}}.detail-room{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;pointer-events:none;opacity:0;transition:opacity .5s 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72px}.detail-section{margin-bottom:36px}.detail-section-label{font-family:var(--font-display);font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;display:flex;align-items:center;gap:10px}.detail-section-label:after{content:"";flex:1;height:1px;background:var(--border)}.detail-description{font-size:15px;line-height:1.85;color:var(--text);font-weight:400}.specs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}.spec-card{background:#8b6f470f;border:1px solid var(--border);border-radius:10px;padding:14px 16px;transition:background 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14px;font-size:12px;font-style:italic;color:var(--text-soft);background:#8b6f470a}.facts-list{display:flex;flex-direction:column;gap:0}.fact-item{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--border);font-size:14px;line-height:1.7;color:var(--text)}.fact-item:last-child{border-bottom:none}.fact-icon{color:var(--accent);font-size:8px;margin-top:7px;flex-shrink:0}.culture-text{font-size:15px;font-style:italic;line-height:1.85;color:var(--text-soft);padding-left:18px;border-left:2px solid var(--accent-soft)}.loading-screen{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:linear-gradient(180deg,#87ceeb,#b8e0f0,#fce4c8);display:flex;align-items:center;justify-content:center;transition:opacity 1s ease,visibility 1s}.loading-screen.hidden{opacity:0;visibility:hidden;pointer-events:none}.loading-content{text-align:center}.loading-spinner{width:36px;height:36px;margin:0 auto 16px;border:2.5px solid 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60px}.specs-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 769px){.swipe-hint{display:none}}.theme-city-drive{--sky: #050510;--grass: #1a1a2e;--earth: #2a2a3e;--lantern: #ff3344;--cream: #e8e0f0;--warm-white: #e8e0f0;--text: #e0dce8;--text-soft: #a0a0b8;--text-muted: #6a6a80;--panel-bg: rgba(18, 16, 30, .95);--border: rgba(120, 100, 160, .2);--border-strong: rgba(120, 100, 160, .4);--accent: #ff3344;--accent-soft: #ff6677;--font-display: "Quicksand", sans-serif;--font-body: "Nunito", sans-serif}.theme-city-drive body{background:var(--sky)}.theme-city-drive .loading-screen{background:linear-gradient(180deg,#050510,#0a0a25,#1a1520)}.theme-city-drive .loading-spinner{border-color:#64508c40;border-top-color:var(--accent)}.theme-city-drive .detail-room-backdrop{background:#05051099}.theme-city-drive .detail-container{scrollbar-color:var(--accent) transparent}.theme-city-drive .detail-container::-webkit-scrollbar-thumb{background:var(--accent)}.theme-city-drive 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