:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #1a1a2e;--bg-card-hover: #22223a;--text-primary: #e8e8f0;--text-secondary: #9898b0;--text-muted: #686880;--border-color: #2a2a40;--timeline-line: #2a2a40}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}::selection{background-color:#8b5cf64d;color:#fff}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app{min-height:100vh;position:relative}.header{position:relative;padding:80px 24px 60px;text-align:center;overflow:hidden}.header:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(139,92,246,.08) 0%,transparent 70%);pointer-events:none}.header-content{position:relative;z-index:1;max-width:800px;margin:0 auto}.header h1{font-family:Playfair Display,Georgia,serif;font-size:clamp(2.2rem,5vw,3.8rem);font-weight:700;line-height:1.15;color:#fff;margin-bottom:16px;letter-spacing:-.02em}.header h1 span{background:linear-gradient(135deg,#8b5cf6,#ec4899,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{font-size:clamp(1rem,2vw,1.15rem);color:var(--text-secondary);max-width:600px;margin:0 auto;line-height:1.7}.stats{display:flex;justify-content:center;gap:40px;margin-top:32px}.stat{text-align:center}.stat-number{font-size:1.8rem;font-weight:700;color:#fff;font-family:Playfair Display,Georgia,serif}.stat-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-top:2px}.filters-section{position:sticky;top:0;z-index:100;background:#0a0a0fd9;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);padding:16px 24px}.filters-inner{max-width:1100px;margin:0 auto;display:flex;flex-direction:column;gap:12px}.search-row{display:flex;align-items:center;gap:12px}.search-input{flex:1;background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;padding:10px 16px;color:var(--text-primary);font-size:.9rem;font-family:inherit;outline:none;transition:border-color .2s}.search-input::placeholder{color:var(--text-muted)}.search-input:focus{border-color:#8b5cf6}.result-count{font-size:.8rem;color:var(--text-muted);white-space:nowrap}.category-filters{display:flex;flex-wrap:wrap;gap:6px}.filter-btn{padding:5px 14px;border-radius:20px;border:1px solid var(--border-color);background:transparent;color:var(--text-secondary);font-size:.78rem;font-family:inherit;cursor:pointer;transition:all .2s;white-space:nowrap}.filter-btn:hover{border-color:var(--text-muted);color:var(--text-primary)}.filter-btn.active{border-color:transparent;color:#fff}.timeline-container{max-width:900px;margin:0 auto;padding:60px 24px 100px;position:relative}.timeline-line{position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,transparent,var(--timeline-line) 60px,var(--timeline-line) calc(100% - 60px),transparent);transform:translate(-50%)}.era-marker{position:relative;z-index:2;text-align:center;padding:24px 0 32px}.era-marker-inner{display:inline-flex;align-items:center;gap:12px;padding:8px 24px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:24px}.era-marker-line{width:20px;height:1px;background:var(--text-muted)}.era-marker h3{font-family:Playfair Display,Georgia,serif;font-size:.95rem;font-weight:400;font-style:italic;color:var(--text-secondary);letter-spacing:.02em}.timeline-entry{position:relative;display:flex;align-items:flex-start;margin-bottom:8px;opacity:0;transform:translateY(20px);animation:fadeInUp .5s ease forwards}@keyframes fadeInUp{to{opacity:1;transform:translateY(0)}}.timeline-entry.left{flex-direction:row}.timeline-entry.right{flex-direction:row-reverse}.timeline-entry .year-marker{width:50%;display:flex;align-items:flex-start;padding-top:24px}.timeline-entry.left .year-marker{justify-content:flex-end;padding-right:32px}.timeline-entry.right .year-marker{justify-content:flex-start;padding-left:32px}.year-text{font-family:Playfair Display,Georgia,serif;font-size:1.1rem;font-weight:700;color:var(--text-muted);white-space:nowrap}.timeline-entry .card-side{width:50%}.timeline-entry.left .card-side{padding-right:32px;display:flex;justify-content:flex-end}.timeline-entry.right .card-side{padding-left:32px;display:flex;justify-content:flex-start}.timeline-dot-wrapper{position:absolute;left:50%;top:24px;transform:translate(-50%);z-index:3}.timeline-dot{width:14px;height:14px;border-radius:50%;border:3px solid var(--bg-primary);transition:transform .2s,box-shadow .2s}.timeline-entry:hover .timeline-dot{transform:scale(1.3)}.theory-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;padding:20px 24px;max-width:380px;width:100%;cursor:pointer;transition:all .25s ease;position:relative;overflow:hidden}.theory-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;opacity:.7;transition:opacity .25s}.theory-card:hover{background:var(--bg-card-hover);border-color:#ffffff14;transform:translateY(-2px);box-shadow:0 8px 32px #0000004d}.theory-card:hover:before{opacity:1}.card-header{margin-bottom:8px}.card-category{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600;margin-bottom:6px;display:inline-block}.card-title{font-family:Playfair Display,Georgia,serif;font-size:1.15rem;font-weight:700;color:#fff;line-height:1.3;margin-bottom:4px}.card-author{font-size:.85rem;color:var(--text-secondary);font-style:italic}.card-description{font-size:.85rem;color:var(--text-secondary);line-height:1.65;margin-top:12px;max-height:0;overflow:hidden;transition:max-height .4s ease,margin-top .4s ease,opacity .3s ease;opacity:0}.theory-card.expanded .card-description{max-height:400px;opacity:1}.card-source-link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:6px 12px;font-size:.78rem;font-weight:500;color:var(--link-color, #8b5cf6);background:#ffffff0a;border:1px solid rgba(255,255,255,.08);border-radius:6px;text-decoration:none;transition:all .2s;cursor:pointer}.card-source-link:hover{background:#ffffff14;border-color:var(--link-color, #8b5cf6);color:#fff}.card-expand-hint{font-size:.72rem;color:var(--text-muted);margin-top:8px;transition:opacity .2s}.theory-card.expanded .card-expand-hint{opacity:0}@media(max-width:768px){.timeline-line{left:24px}.timeline-entry{flex-direction:column!important;padding-left:52px}.timeline-entry .year-marker{width:100%;padding:0 0 4px!important;justify-content:flex-start!important}.timeline-entry .card-side{width:100%;padding:0!important;justify-content:flex-start!important}.timeline-dot-wrapper{left:24px}.theory-card{max-width:100%}.header{padding:48px 20px 40px}.stats{gap:24px}.era-marker{text-align:left;padding-left:0}}.footer{text-align:center;padding:40px 24px 60px;border-top:1px solid var(--border-color)}.footer p{font-size:.82rem;color:var(--text-muted);line-height:1.8}.footer a{color:var(--text-secondary);text-decoration:none;border-bottom:1px solid var(--border-color);transition:color .2s,border-color .2s}.footer a:hover{color:#8b5cf6;border-color:#8b5cf6}.empty-state{text-align:center;padding:80px 24px;color:var(--text-muted)}.empty-state p{font-size:1.1rem;margin-bottom:8px}.empty-state span{font-size:.85rem}