:root{font-family:"Avenir Next",Avenir,system-ui,sans-serif;color-scheme:light;--page:#f4f2f8;--surface:#fff;--ink:#251d3d;--muted:#6b647a;--line:#e1dce9;--accent:#642bd2;--tint:#f1ebfc;--green:#147257;--amber:#95580b;--ambg:#fff4df;--greenbg:#e6f5ef;--shadow:0 18px 50px #27114808;color:var(--ink);background:var(--page)}
:root[data-theme=dark]{color-scheme:dark;--page:#171322;--surface:#211b30;--ink:#eeeaf6;--muted:#b6aec7;--line:#40364f;--accent:#c6a4ff;--tint:#35254d;--green:#88ddba;--amber:#efbe79;--ambg:#3f3020;--greenbg:#1d3b32;--shadow:none}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:1120px;margin:auto;padding:30px}header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:42px}h1{font-size:clamp(24px,3vw,34px);font-weight:550;letter-spacing:-1.1px;margin:10px 0 0}h2{font-size:27px;font-weight:550;margin:5px 0}h3{margin:0;font-weight:550}p{line-height:1.65}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:750;color:var(--accent)}main{padding-top:8px}.demo{display:flex;gap:14px;align-items:center;border:1px solid var(--line);border-radius:6px;padding:12px 16px;color:var(--muted);font-size:12px}.demo strong{color:var(--accent);white-space:nowrap}.concepts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:24px 0 18px}button,select{font:inherit;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:10px 13px;cursor:pointer;min-height:42px}button:hover{border-color:var(--accent)}button:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.concepts button{text-align:left;padding:17px;font-size:15px}.concepts b{color:var(--muted);font-size:11px;margin-right:9px}.concepts small{display:block;margin-top:6px;margin-left:26px;color:var(--muted);font-size:11px}.concepts [aria-pressed=true]{background:var(--tint);border-color:var(--accent);box-shadow:inset 0 -2px var(--accent)}label{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:10px}select{font-size:12px}.workbench{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:18px;color:var(--muted);font-size:12px}.surface{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:28px;box-shadow:var(--shadow);border-top:3px solid var(--accent)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.segmented{display:flex;background:var(--page);padding:3px;border-radius:7px;border:1px solid var(--line)}.segmented button{border:0;background:none;font-size:13px}.segmented [aria-pressed=true]{background:var(--accent);color:var(--surface)}.route-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin:26px 0 20px}.route-head h3{font-size:16px}.route-head>span{font-size:11px;color:var(--muted)}.journeys{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 20px}.journeys button{font-size:13px;min-width:86px}.journeys [aria-pressed=true]{border-color:var(--accent);color:var(--accent);background:var(--tint)}.journey-summary{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:22px 0}.journey-summary h3{font-size:19px}.badge{display:inline-block;font-size:11px;padding:6px 9px;border-radius:4px;white-space:nowrap;background:var(--ambg);color:var(--amber)}.badge.done{background:var(--greenbg);color:var(--green)}.badge.quiet{background:var(--page);color:var(--muted)}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums;text-align:left}caption{text-align:left;font-size:12px;color:var(--muted);padding-bottom:12px}th{font-size:11px;color:var(--muted);font-weight:550;padding:11px;background:var(--page)}td{padding:18px 11px;border-bottom:1px solid var(--line);font-size:14px}thead tr:first-child th[colspan]{text-align:center;border-bottom:1px solid var(--line)}.group-start{border-left:1px solid var(--line)}td.stop{min-width:175px;font-weight:600}td.stop span{display:block;font-size:10px;color:var(--muted);font-weight:450;margin:7px 0 0 20px}.stop i{display:inline-block;height:9px;width:9px;border:2px solid var(--accent);border-radius:50%;margin-right:10px}.time{font-size:19px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}.time small{display:block;font-family:inherit;font-size:10px;font-weight:500;margin-top:5px}.observed-time{color:var(--green)}.predicted-time{color:var(--accent)}.scheduled-time{color:var(--muted)}.muted{color:var(--muted)}.legend{display:flex;gap:20px;flex-wrap:wrap;padding-top:0;margin-top:25px;font-size:10px;color:var(--muted)}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:6px}.observed{background:var(--green)}.predicted{border:1.5px solid var(--accent)}.scheduled{background:var(--muted)}.feed-note{font-size:11px;color:var(--muted);margin:18px 0 0}.design-note{display:grid;grid-template-columns:230px 1fr;gap:28px;padding:27px 4px}.design-note h3{font-size:18px;margin-top:8px}.design-note p{font-size:13px;color:var(--muted);margin:0}.evidence{border-top:1px solid var(--line);padding:18px 4px;font-size:12px;color:var(--muted)}summary{cursor:pointer;color:var(--ink);min-height:30px}footer{font-size:10px;color:var(--muted);padding-top:8px;padding-bottom:30px}.next-card{border:1px solid var(--line);border-radius:8px;overflow:hidden}.next-top{padding:18px 22px;background:var(--tint);display:flex;justify-content:space-between;align-items:center;gap:12px}.next-top strong{font-size:14px}.big-times{display:grid;grid-template-columns:1fr 40px 1fr;gap:12px;padding:26px 22px;align-items:center}.big-times .time{font-size:42px;letter-spacing:-1px;display:block;margin:9px 0}.big-times .time small{font-size:11px;letter-spacing:0}.big-times p{font-size:12px;margin:0}.big-times h3{font-size:13px}.arrow{color:var(--accent);font-size:26px}.later{margin:22px 0 0;display:flex;gap:10px;flex-wrap:wrap;align-items:center;font-size:12px;color:var(--muted)}.later span{padding:9px 13px;background:var(--page);border-radius:5px}.board td{vertical-align:top}.board .current{background:var(--tint)}.board .time{font-size:20px}.board .plan{display:block;margin-top:8px;font-size:10px;color:var(--muted)}.board th{white-space:nowrap}.sample-bounds{margin:14px 0;color:var(--muted);font-size:11px}
@media(max-width:680px){header,main,footer{padding:20px 16px}header{align-items:start;flex-direction:column;gap:16px}header label{align-self:flex-end}main{padding-top:0}.demo{align-items:start;flex-direction:column;gap:5px}.concepts{gap:6px}.concepts button{padding:12px 8px;font-size:12px}.concepts b{display:block;margin-bottom:5px}.concepts small{margin-left:0;font-size:9px}.workbench{align-items:start;flex-direction:column;gap:8px}.surface{padding:18px 14px}.route-head{align-items:start;flex-direction:column}.section-head{align-items:start;flex-direction:column}.route-head h3{font-size:14px}.journey-summary{align-items:start;flex-direction:column}.design-note{grid-template-columns:1fr;gap:14px}.legend{gap:12px}.big-times{padding:22px 14px;grid-template-columns:1fr 18px 1fr;gap:9px}.big-times .time{font-size:32px}.next-top{padding:14px}.next-top strong{font-size:12px}.detail-table{min-width:590px}.board{min-width:470px}.table-scroll{border-right:1px solid var(--line)}.journeys button{min-width:65px}h1{font-size:27px}}

@media(max-width:680px){.board{min-width:0;table-layout:fixed}.board th,.board td{padding:13px 6px}.board th{white-space:normal;font-size:10px}.board .badge{white-space:normal;line-height:1.5;font-size:10px;padding:5px 7px}.board .plan{font-size:9px}.board .time{font-size:20px}}
/* Session board variations: all retain the complete selected session. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.board{min-width:0;table-layout:fixed}.board td{padding-top:20px;padding-bottom:20px}.plain-status{font-size:12px;color:var(--muted)}.current .plain-status{color:var(--accent)}.board .plan{font-size:11px;margin-top:9px}.planned-col{color:var(--muted);font-size:18px;font-variant-numeric:tabular-nums}.variant-paired th[colspan]{text-align:left}.variant-paired .time{font-size:20px}.variant-minimal .time{font-size:24px}.variant-minimal .time small{display:inline;margin-left:9px;font-size:10px;font-weight:500}.inline-status{display:block;margin-top:9px;font-size:10px;color:var(--accent)}
@media(max-width:680px){.board td{padding:17px 6px}.board .plan{font-size:10px}.plain-status{font-size:11px}.variant-paired .time,.planned-col{font-size:16px}.variant-paired th{font-size:9px}.variant-paired .time small{font-size:9px}.variant-minimal .time{font-size:22px}.variant-minimal .time small{display:block;margin:5px 0 0}.concepts small{line-height:1.5}}

.variant-minimal .scheduled-primary{color:var(--ink)}.variant-minimal .scheduled-primary small{color:var(--muted)}.variant-minimal .live-secondary{display:block;font-size:13px;font-weight:500;margin-top:9px;font-variant-numeric:tabular-nums}

.source-note{font-size:.8rem;line-height:1.65;margin:18px 0 0;color:var(--muted)}.source-note a{color:var(--accent);text-underline-offset:3px}

.demo + .surface{margin-top:20px}.back-link{color:var(--accent);font-size:12px;display:inline-block;margin-bottom:15px}

.day-heading{font-size:18px;margin:22px 0 16px}.history-day{margin-top:32px;padding-top:12px;border-top:1px solid var(--line)}