:root{--paper:#f5f3ed;--ink:#222d2a;--muted:#626963;--line:#d9dcd2;--accent:#bc5035;--chatgpt:#287766;--gemini:#4778b8;--grok:#a25b3c;--claude:#867392;--white:#fffefa;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;scroll-behavior:smooth}
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@media(max-width:1000px){.wrap{padding-inline:28px}.hero-grid{gap:35px;grid-template-columns:1fr 240px}h1{font-size:64px}.hero-aside{padding-left:24px}.hero-number{font-size:68px}.section-heading h2{font-size:35px}.section-heading>p{max-width:280px}.chart-layout{grid-template-columns:minmax(0,1fr) 210px}.event-panel{padding:24px 16px}.chart-main{padding:20px 12px 15px}.chart-controls,.chart-topline,.milestone-browser{padding-inline:20px}.pipeline li{padding-right:18px}.pipeline li+li{padding-left:18px}.pipeline h3{font-size:12px}.notes-grid{gap:25px}}
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@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*{transition:none!important}}

/* Dedicated explorer: generous plotting space and controls that stay readable. */
.site-header nav a[aria-current=page]{color:var(--accent);border-bottom:1px solid var(--accent);padding-bottom:6px}
.explorer-invite{display:flex;align-items:center;justify-content:space-between;gap:40px;padding-block:60px}
.explorer-invite h2{font-size:38px;letter-spacing:-1.2px;margin-top:15px}.explorer-invite p{font-size:13px;line-height:1.8;max-width:550px;color:var(--muted)}
.explorer-launch{display:flex;align-items:center;gap:35px;flex-shrink:0;background:var(--ink);color:var(--white);padding:20px 26px;border-radius:4px;text-decoration:none;font-size:13px}.explorer-launch:hover{background:#364d40;color:var(--white)}
.explorer-page .wrap{max-width:1640px}.explorer-page .explore-section{padding-top:42px}.explorer-page .section-heading h1{font-size:48px;letter-spacing:-1.5px;margin-top:12px}.explorer-page .section-heading{margin-bottom:26px}.explorer-page .section-heading>p{max-width:420px;font-size:14px}
.explorer-page .date-note p{font-size:12px}.explorer-page .chart-layout{grid-template-columns:minmax(0,1fr) 280px}.explorer-page .chart-topline h3{font-size:19px}.explorer-page .chart-topline p{font-size:12px}.explorer-page .platform-controls button{font-size:12px;padding:10px 14px}.explorer-page .platform-controls button strong{font-size:11px}.explorer-page select,.explorer-page .segmented button{font-size:12px}
.chart-actions{display:flex;align-items:center;gap:20px}.chart-actions button,.explorer-toolbar button{border:1px solid #cbd0c5;background:var(--white);border-radius:4px;padding:9px 12px;font-size:12px}.chart-actions button:hover,.explorer-toolbar button:hover:not(:disabled){background:#eaece3}.explorer-toolbar button:disabled{opacity:.35;cursor:default}
.explorer-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;padding:18px 28px 10px}.range-picker{display:flex;gap:12px}.range-picker label{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:7px}.zoom-controls{display:flex;align-items:center;gap:6px}.zoom-controls button{min-width:36px;font-size:17px;line-height:1;padding:9px}.zoom-controls output{font-size:12px;min-width:205px;text-align:center;padding-inline:5px}.explorer-help{font-size:11px;color:var(--muted);line-height:1.7;margin:0;padding:5px 28px 14px;border-bottom:1px solid var(--line)}kbd{font:10px monospace;border:1px solid var(--line);border-radius:3px;padding:2px 4px}
.basis-picker{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}
.explorer-page .plot{min-width:620px}.explorer-page .plot text{font-size:12px}.explorer-page .plot .axis-heading{font-size:10px}.explorer-page .chart-description,.explorer-page .chart-hint{font-size:10px}.explorer-page .event-panel p{font-size:13px;line-height:1.7}.explorer-page .event-panel .event-source{font-size:12px}.explorer-page .month-readout{font-size:12px}.explorer-page .event-chip{flex-basis:195px}.explorer-page .event-chip strong{font-size:12px}.explorer-page .event-chip time{font-size:11px}.explorer-page .timeline-scope{font-size:11px}.explorer-page .data-table summary{font-size:13px}
body.chart-expanded{overflow:hidden}.chart-card.is-expanded{position:fixed;inset:14px;z-index:100;overflow:auto;border-color:#b8c3b0;box-shadow:0 0 0 30px #222d2a99}.is-expanded .chart-topline{position:sticky;top:0;z-index:2;background:var(--white);border-bottom:1px solid var(--line)}.is-expanded .chart-layout{grid-template-columns:minmax(0,1fr) 290px}.is-expanded .chart-main{padding-inline:28px}.is-expanded .event-panel{font-size:14px}
@media(max-width:1000px){.explorer-page .chart-layout{grid-template-columns:1fr}.explorer-page .event-panel{border-left:0;border-top:1px solid var(--line);min-height:0;padding:24px}.explorer-page .event-panel p{max-width:700px}.explorer-page .event-panel .event-date{margin-top:16px}.explorer-page .event-panel h4{font-size:26px}.explorer-page .event-source{margin-top:15px}.explorer-invite{gap:25px}.explorer-launch{padding:18px;font-size:12px}.explorer-toolbar{gap:12px}.zoom-controls{order:3;width:100%;justify-content:center}.explorer-toolbar>button{margin-left:auto}}
@media(max-width:760px){.explorer-invite{display:block;padding-block:40px}.explorer-invite h2{font-size:32px}.explorer-launch{display:inline-flex;margin-top:15px}.explorer-page .section-heading h1{font-size:38px}.explorer-page .section-heading>p{font-size:13px}.chart-actions{gap:12px;flex-wrap:wrap;justify-content:flex-end}.chart-actions button{font-size:11px;padding:8px}.explorer-page .chart-topline h3{font-size:16px}.explorer-page .chart-topline p{font-size:10px}.explorer-page .download{font-size:10px}.explorer-toolbar{padding-inline:16px}.explorer-help{padding-inline:16px;font-size:11px}.zoom-controls output{min-width:0;flex:1;font-size:11px}.range-picker{gap:9px}.range-picker label{font-size:11px}.explorer-page .range-picker select{font-size:11px;max-width:113px;padding-right:12px}.explorer-toolbar>button{font-size:11px;padding:8px}.chart-card.is-expanded{inset:0;border-radius:0}.explorer-page .is-expanded .chart-topline{padding:16px}.explorer-page .chart-description{font-size:8px}.explorer-page .chart-hint{font-size:10px}.explorer-page .plot{min-width:580px}}

.snapshot-notice{font-size:12px;line-height:1.6;padding:12px 16px;border-left:2px solid var(--accent);background:#ece8dc;color:#65533f;margin:0 0 22px}