.stratum-wrap{font-family:var(--font-sans)}.stratum-loading{text-align:center;color:var(--fg-mute);font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;padding:200px 40px;font-size:14px}.stratum-container{max-width:1320px;margin:0 auto;padding:0 40px 120px}.stratum-label{font-family:var(--font-mono);font-size:var(--notebook-text-small);text-transform:uppercase;letter-spacing:.16em;color:var(--fg-mute);margin-bottom:6px}.stratum-ribbon{max-width:1320px;margin:48px auto 40px;padding:0 40px}.stratum-ribbon-meta{justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:14px;display:flex}.stratum-ribbon-label{font-family:var(--font-mono);font-size:var(--notebook-text-small);letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:600}.stratum-ribbon-count{font-family:var(--font-mono);font-size:var(--notebook-text-small);letter-spacing:.12em;color:var(--fg-mute);text-transform:uppercase}.stratum-ribbon-bar{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);background:linear-gradient(180deg, transparent, color-mix(in oklab, var(--bg-2) 80%, transparent), transparent);cursor:pointer;height:44px;margin-bottom:36px;position:relative}.stratum-ribbon-bar:hover{background:linear-gradient(180deg, transparent, color-mix(in oklab, var(--accent) 6%, var(--bg-2)), transparent)}.stratum-ribbon-ticks{pointer-events:none;position:absolute;inset:0}.stratum-ribbon-tick{border-left:1px dashed var(--rule);position:absolute;top:0;bottom:0}.stratum-ribbon-tick span{font-family:var(--font-mono);font-size:var(--notebook-text-small);color:var(--fg-mute);letter-spacing:.08em;position:absolute;bottom:-18px;left:4px}.stratum-ribbon-marker{background:var(--accent);width:3px;box-shadow:0 0 12px color-mix(in oklab, var(--accent) 70%, transparent);pointer-events:none;position:absolute;top:-6px;bottom:-6px;transform:translate(-50%)}.stratum-ribbon-marker:before,.stratum-ribbon-marker:after{content:"";background:var(--accent);width:10px;height:10px;position:absolute;left:50%;transform:translate(-50%)rotate(45deg)}.stratum-ribbon-marker:before{top:-8px}.stratum-ribbon-marker:after{bottom:-8px}.stratum-ribbon-marker-label{font-family:var(--font-display);letter-spacing:-.01em;white-space:nowrap;color:var(--accent);font-feature-settings:"tnum";font-size:18px;font-weight:600;position:absolute;top:calc(100% + 14px);left:50%;transform:translate(-50%)}.stratum-ribbon-nav{flex-wrap:wrap;align-items:center;gap:12px;margin-top:28px;display:flex}.stratum-nav-btn{background:var(--bg-2);border:1px solid var(--rule);color:var(--fg-2);font-family:var(--font-mono);font-size:var(--notebook-text-meta);letter-spacing:.08em;cursor:pointer;border-radius:4px;padding:8px 14px;transition:color .15s,border-color .15s}.stratum-nav-btn:hover:not(:disabled){color:var(--accent);border-color:color-mix(in oklab, var(--accent) 40%, var(--rule))}.stratum-nav-btn:disabled{opacity:.35;cursor:not-allowed}.stratum-jump{flex:1;gap:6px;min-width:260px;max-width:480px;display:flex}.stratum-jump-input{background:var(--bg-2);border:1px solid var(--rule);color:var(--fg);font-family:var(--font-mono);border-radius:4px;outline:none;flex:1;padding:8px 12px;font-size:14px;transition:border-color .15s}.stratum-jump-input:focus{border-color:var(--accent)}.stratum-jump-input::placeholder{color:var(--fg-mute);letter-spacing:.04em}.stratum-jump-btn{background:var(--accent);color:var(--bg);font-family:var(--font-mono);font-size:var(--notebook-text-meta);letter-spacing:.12em;text-transform:uppercase;cursor:pointer;border:0;border-radius:4px;padding:8px 16px;font-weight:700}.stratum-head{flex-wrap:wrap;align-items:flex-end;gap:48px;margin:36px 0 32px;display:flex}.stratum-head-col{min-width:140px}.stratum-head-era{flex:2}.stratum-year{font-family:var(--font-display);letter-spacing:-.03em;color:var(--fg);font-feature-settings:"tnum";margin:0;font-size:clamp(56px,8vw,96px);font-weight:600;line-height:1}.stratum-docbars{gap:2px;display:flex}.stratum-docbars span{background:var(--rule);border-radius:1px;width:8px;height:18px}.stratum-docbars span.on{background:var(--accent)}.stratum-doc-text{text-transform:capitalize;color:var(--fg);font-size:14px;font-family:var(--font-mono);letter-spacing:.04em}.stratum-era{color:var(--fg-2);max-width:60ch;margin:0;font-size:14px;line-height:1.6}.stratum-stats{background:var(--bg-2);border:1px solid var(--rule);border-radius:10px;grid-template-columns:repeat(3,1fr);gap:24px;margin:32px 0 48px;padding:24px;display:grid}@media (max-width:920px){.stratum-stats{grid-template-columns:1fr}}.stratum-stat{min-width:0}.stratum-num{font-family:var(--font-display);letter-spacing:-.02em;color:var(--fg);font-size:40px;font-weight:600;line-height:1}.stratum-stat-unit{font-size:var(--notebook-text-meta);color:var(--fg-mute);font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase}.stratum-cats{flex-wrap:wrap;gap:5px;margin-top:12px;display:flex}.stratum-cat-chip{font-family:var(--font-mono);font-size:var(--notebook-text-small);text-transform:uppercase;letter-spacing:.06em;border:1px solid;border-radius:4px;align-items:center;gap:6px;padding:3px 8px;display:inline-flex}.stratum-cat-chip b{margin-left:2px;font-weight:700}.stratum-cat-dot{border-radius:50%;width:5px;height:5px}.stratum-cert-chart{flex-direction:column;gap:6px;margin-top:8px;display:flex}.stratum-cert-row{font-family:var(--font-mono);font-size:var(--notebook-text-small);grid-template-columns:90px 1fr 32px;align-items:center;gap:8px;display:grid}.stratum-cert-name{color:var(--fg-mute);text-transform:uppercase;letter-spacing:.08em}.stratum-cert-bar{background:var(--rule);border-radius:2px;height:6px;overflow:hidden}.stratum-cert-fill{height:100%;transition:width .4s cubic-bezier(.2,.8,.2,1);display:block}.stratum-cert-fill.stratum-cert-confirmed{background:#5dc879;background:lab(72.9029% -45.1402 29.5956)}.stratum-cert-fill.stratum-cert-probable{background:#00c1eb;background:lab(71.7145% -33.4504 -35.1711)}.stratum-cert-fill.stratum-cert-approximate,.stratum-cert-fill.stratum-cert-traditional{background:#e6ac3d;background:lab(74.5248% 14.3487 62.5064)}.stratum-cert-fill.stratum-cert-legendary{background:#ff6c8b;background:lab(65.4352% 58.785 13.2858)}.stratum-cert-num{text-align:right;color:var(--fg);font-weight:600}.stratum-source-bar{border-radius:2px;height:8px;margin-top:8px;display:flex;overflow:hidden}.stratum-source-legend{font-size:var(--notebook-text-small);color:var(--fg-mute);font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;justify-content:space-between;margin-top:6px;display:flex}.stratum-events{margin-top:8px}.stratum-events-head{align-items:baseline;gap:20px;margin-bottom:20px;display:flex}.stratum-events-head h2{font-family:var(--font-display);letter-spacing:-.01em;color:var(--fg);margin:0;font-size:22px;font-weight:600}.stratum-events-count{color:var(--fg-mute);font-weight:400;font-family:var(--font-mono);font-size:14px}.stratum-sort{background:var(--bg-2);border:1px solid var(--rule);border-radius:6px;gap:2px;margin-left:auto;padding:2px;display:flex}.stratum-sort button{color:var(--fg-mute);font-family:var(--font-mono);font-size:var(--notebook-text-small);text-transform:uppercase;letter-spacing:.1em;cursor:pointer;background:0 0;border:0;border-radius:4px;padding:4px 10px}.stratum-sort button.on{background:var(--fg);color:var(--bg)}.stratum-grid{grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px;display:grid}.stratum-card{background:var(--card);border:1px solid var(--rule);border-radius:10px;padding:0;transition:border-color .18s,transform .18s;position:relative}.stratum-card:hover{border-color:color-mix(in oklab, var(--accent) 45%, var(--rule));transform:translateY(-1px)}.stratum-card-open{width:100%;color:inherit;text-align:left;cursor:pointer;font:inherit;background:0 0;border:0;padding:18px 20px 16px 24px}.stratum-card-rail{border-radius:0 3px 3px 0;width:3px;position:absolute;top:16px;bottom:16px;left:0}.stratum-card-head{font-family:var(--font-mono);font-size:var(--notebook-text-small);color:var(--fg-mute);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;margin-bottom:10px;display:flex}.stratum-card-id{color:var(--accent);opacity:.9}.stratum-card-cat{font-weight:600}.stratum-card-title{font-family:var(--font-display);letter-spacing:-.01em;color:var(--fg);margin:0 0 6px;font-size:16px;font-weight:600;line-height:1.3}.stratum-card-region{font-family:var(--font-mono);font-size:var(--notebook-text-meta);color:var(--fg-mute);margin-bottom:10px}.stratum-card-desc{color:var(--fg-2);-webkit-box-orient:vertical;margin:0 0 14px;font-size:14px;line-height:1.6;overflow:hidden}.stratum-card-foot{border-top:1px dashed var(--rule);gap:16px;padding-top:12px;display:flex}.stratum-measure{flex:1}.stratum-measure-label{font-family:var(--font-mono);font-size:var(--notebook-text-small);text-transform:uppercase;letter-spacing:.14em;color:var(--fg-mute);margin-bottom:4px}.stratum-measure-bars{gap:2px;margin-bottom:3px;display:flex}.stratum-measure-bars span{background:var(--rule);border-radius:1px;width:100%;height:4px}.stratum-measure-bars span.on{background:var(--accent)}.stratum-measure-val{font-family:var(--font-mono);font-size:var(--notebook-text-small);color:var(--fg);letter-spacing:.04em}.stratum-card-expand{border-top:1px dashed var(--rule);padding:14px 20px 16px 24px}.stratum-kf-list{flex-wrap:wrap;gap:4px;margin-top:4px;display:flex}.stratum-kf{font-size:var(--notebook-text-meta);background:var(--bg);border:1px solid var(--rule);color:var(--fg);font-family:var(--font-sans);border-radius:3px;padding:2px 8px}.stratum-src-list{font-size:var(--notebook-text-meta);margin:6px 0 0;padding:0;list-style:none}.stratum-src-list li{color:var(--fg-2);grid-template-columns:auto 1fr;align-items:baseline;gap:10px;padding:4px 0;display:grid}.stratum-src-type{font-family:var(--font-mono);font-size:var(--notebook-text-micro);background:var(--bg);border:1px solid var(--rule);text-transform:uppercase;letter-spacing:.06em;border-radius:3px;padding:2px 6px}.stratum-src-type.c{color:var(--accent);border-color:color-mix(in oklab, var(--accent) 40%, var(--rule))}.stratum-src-name{line-height:1.4}.stratum-dissent{grid-template-columns:1fr 1fr;gap:16px;margin-top:48px;display:grid}@media (max-width:820px){.stratum-dissent{grid-template-columns:1fr}}.stratum-dissent-card{border:1px solid var(--rule);background:var(--bg-2);border-radius:10px;padding:20px}.stratum-dissent-card p{color:var(--fg-2);margin:8px 0 0;font-size:14px;line-height:1.65}.stratum-empty{text-align:center;max-width:480px;font-family:var(--font-sans);color:var(--fg-2);margin:120px auto}.stratum-empty p:first-child{font-family:var(--font-display);color:var(--fg);margin:0 0 8px;font-size:22px}.stratum-empty-hint{color:var(--fg-mute);margin:0;font-size:14px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}