:root{--bg:#fff;--ink:#0f172a;--muted:#475569;--accent:#0ea5e9;--accent-2:#6366f1;--line:#e2e8f0}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;color:var(--ink);background:var(--bg);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";overflow:hidden}.shell{position:relative;height:100%;display:grid;grid-template-columns:260px 1fr 96px;grid-template-rows:64px minmax(0,1fr) 0px;grid-template-areas:"hdr hdr hdr" "rail content controls" "footer footer footer"}header{grid-area:hdr;display:flex;align-items:center;justify-content:center;position:sticky;top:0;height:64px;border-bottom:1px solid var(--line);background:#fff;z-index:10}footer{grid-area:footer;display:flex;align-items:center;justify-content:center;gap:10px;height:40px;min-height:40px;padding:.4rem;font-size:.9rem;color:var(--muted);border-top:1px solid var(--line);background:#fff;position:fixed;left:0;right:0;bottom:0;z-index:1000}.search{width:min(720px,92vw);position:relative}.search input{width:100%;padding:.8rem 2.5rem .8rem 1rem;border-radius:999px;border:1px solid var(--line);outline:none;font-size:1rem}.search .clear-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:999px;border:1px solid #e2e8f0;background:#fff;color:#334155;font-size:18px;line-height:24px;padding:0;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 1px 4px #0206170f}.search .clear-btn:hover{background:#f8fafc}.suggestions{position:absolute;top:48px;left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:12px;max-height:50vh;overflow:auto;box-shadow:0 12px 30px #0206171f;z-index:20}.suggestions li{padding:.65rem .85rem;border-bottom:1px solid #f1f5f9;cursor:pointer}.suggestions li:hover{background:#f8fafc}.rail{grid-area:rail;position:relative;border-right:1px solid var(--line);overflow:visible;z-index:1;background:#fff;-webkit-user-select:none;user-select:none}.timeline-line{position:absolute;left:50%;top:0;bottom:0;width:4px;transform:translate(-50%);background:linear-gradient(to bottom,#0000,#94a3b8a6,#0000),linear-gradient(#e5e7eb,#e5e7eb);opacity:.98}.tl-track{position:absolute;top:0;right:0;bottom:0;left:0}.tl-node{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(1);transform-origin:center;width:18px;height:18px;border:none;background:none;padding:0;cursor:pointer;transition:transform .22s ease,opacity .22s ease;-webkit-user-select:none;user-select:none}.tl-dot{display:block;width:100%;height:100%;border-radius:999px;border:3px solid #6b7280;background:#fff;box-shadow:0 2px 10px #0206171f}.tl-dot[data-active=true]{border-color:#6366f1;background:#eef2ff;box-shadow:0 6px 18px #6366f140}.tl-label{position:absolute;left:calc(50% + 18px);top:50%;transform:translateY(-50%);display:flex;gap:.35rem;align-items:center;white-space:nowrap;background:#fff;border:1px solid #e2e8f0;border-radius:10px;padding:.16rem .5rem;box-shadow:0 6px 18px #0206170f;z-index:2;-webkit-user-select:none;user-select:none}.tl-label-title{font-size:.78rem;color:#0f172a;font-weight:600}.tl-label-year{font-size:.72rem;color:#475569}.content{grid-area:content;position:relative;min-height:0;height:100%;overflow-y:auto;overscroll-behavior:contain;scroll-snap-type:y mandatory;scroll-behavior:smooth;scrollbar-gutter:stable both-edges;scroll-padding-top:64px;scroll-padding-bottom:40px;background:transparent;touch-action:pan-y}section.event{min-height:100%;display:grid;place-items:center;scroll-snap-align:center;scroll-snap-stop:always;padding:0 1rem}.card{width:min(960px,92vw);background:#ffffffeb;border:1px solid var(--line);border-radius:20px;padding:clamp(18px,2.5vw,32px);box-shadow:0 12px 30px #0206170f;position:relative}.period-badge{position:absolute;right:16px;top:12px;background:var(--ink);color:#fff;padding:.35rem .6rem;border-radius:999px;font-size:.8rem}.card h2{padding-right:96px}.meta{color:var(--muted);margin-bottom:.5rem}.card-active{transform:scale(1.02);box-shadow:0 18px 40px #0206171f;transition:transform .25s ease,box-shadow .25s ease}.controls{grid-area:controls;display:flex;align-items:center;justify-content:center;border-left:1px solid var(--line);background:#fff;z-index:5}.controls .slider-wrap{writing-mode:bt-lr;transform:rotate(-90deg);width:240px;-webkit-user-select:none;user-select:none}.controls input[type=range]{width:100%}.controls .slider-label{margin-top:8px;text-align:center;font-size:.75rem;color:#475569}.bg-words{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:0;color:#0f172a;opacity:.06;font-weight:800;font-size:clamp(48px,12vw,160px);line-height:.95;word-break:break-word;-webkit-hyphens:auto;hyphens:auto;padding:6vh 6vw;text-transform:uppercase}@media (max-width: 768px){.shell{grid-template-columns:1fr;grid-template-rows:64px auto minmax(0,1fr) 0px;grid-template-areas:"hdr" "rail" "content" "footer"}.rail{grid-area:rail;height:84px;border-right:none;border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:2;touch-action:none;-webkit-user-select:none;user-select:none}.timeline-line{left:0;right:0;top:50%;height:4px;width:auto;bottom:auto;transform:translateY(-50%);background:linear-gradient(to right,#0000,#94a3b8a6,#0000),linear-gradient(90deg,#e5e7eb,#e5e7eb)}.tl-node{left:50%;top:50%}.tl-label{left:50%;top:calc(50% + 18px);transform:translate(-50%);white-space:nowrap}.tl-node[data-active=true]{z-index:30}.tl-node[data-active=true] .tl-label{z-index:35}.controls{position:fixed;left:0;right:0;bottom:40px;height:56px;border-left:none;border-top:1px solid var(--line);background:#fff;z-index:900;display:flex;align-items:center;justify-content:center;box-shadow:0 -6px 18px #0206170a}.controls .slider-wrap{transform:none;writing-mode:horizontal-tb;width:min(560px,92vw);display:flex;flex-direction:column;align-items:center;gap:6px}.controls .slider-label{margin:0;font-size:.78rem;color:#475569}.controls input[type=range]{width:100%}.content{scroll-padding-bottom:104px}section.event{padding:0 1rem}}