:root{
 color-scheme:light;
 --bg:#fff;--paper:#faf7f1;--ink:#1b1b1b;--muted:#4f5157;--faint:#6b6e74;--line:#e6e2da;--track:#e7e3dc;
 --orange:#e2832b;--orange-ink:#b45309;--brown:#7a5434;--beige:#efe8dc;--accent:#2563eb;--warm:#ea580c;
 --serif:ui-serif,"New York","Iowan Old Style","Charter","Source Serif Pro",Georgia,serif;
 --sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif;
 --display:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;padding:0}
button,input,a,summary{touch-action:manipulation}
:focus-visible{outline:2px solid var(--orange-ink);outline-offset:3px;border-radius:6px}
p{margin:0}
[hidden]{display:none!important}
.muted{color:var(--muted)}
.fine{font-size:12px;color:var(--faint)}
.warn{color:var(--orange-ink)}
.label{font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--faint);margin:0}
.label.small{font-size:10px}

/* Masthead */
.top{max-width:1240px;margin:auto;padding:22px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.top-links{display:flex;align-items:center;gap:20px}
body[data-view=home] .top{border-bottom:none;padding-bottom:16px}
@media(max-width:600px){.top-links{gap:12px}.top-links .text-btn{font-size:10px;letter-spacing:.06em}}
.brand{display:flex;align-items:center;gap:12px}
.mark{width:34px;height:34px;color:var(--ink);flex:none}
.mark .wave{stroke:var(--orange)}
.wordmark{font:700 25px/1 var(--serif);letter-spacing:-.005em}
.wordmark.small{font-size:16px}
.text-btn{font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);padding:8px 2px;border-bottom:2px solid transparent}
.text-btn:hover{border-color:var(--orange)}
#proposals-open .count{margin-left:6px;color:var(--orange-ink)}
#proposals-open .count:empty{display:none}

/* Sticky reading bar */
.readbar{position:fixed;inset:0 0 auto 0;z-index:20;height:64px;display:flex;align-items:center;gap:18px;padding:0 28px;background:#fff;border-bottom:1px solid var(--line);transform:translateY(-100%);transition:transform .25s ease;box-shadow:0 6px 18px -14px rgba(0,0,0,.3)}
.readbar:not(.on){box-shadow:none}
.readbar.on{transform:none}
.readbar .mark{width:28px;height:28px}
.readbar a{display:flex;padding-right:18px;border-right:1px solid var(--line);height:36px;align-items:center}
#readbar-title{font:700 19px/1.2 var(--serif);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#read-progress{position:absolute;left:0;bottom:-1px;height:3px;width:calc(var(--read,0)*100%);background:var(--orange)}

main{max-width:1240px;margin:auto;padding:0 32px}

/* The lab: a small world of AI agents above the status line; pointing at an agent shows a card with their role. */
.lab-intro{margin:0;max-width:40em;font:400 clamp(16px,1.35vw,19px)/1.5 var(--serif);color:var(--ink);text-wrap:pretty}
.lab-intro .spark{color:#7c3aed;vertical-align:-1px;margin-right:8px}
/* The lab picture runs edge to edge under the masthead, like a magazine's lead photograph; the intro and the status
   line sit under it as its caption. */
.lab-caption{max-width:860px;margin:16px auto 0;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px}
body[data-view=article] .lab-caption{display:none}
.lab-wrap{position:relative;width:100vw;margin-left:calc(50% - 50vw)}
.lab-anim{display:block;width:100%;height:auto;aspect-ratio:1300/320}
@media(max-width:600px){.lab-anim{aspect-ratio:560/320}}
body[data-view=article] .lab-wrap{display:none}
.lab-tip{position:absolute;transform:translate(-50%,-100%);background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:12px;line-height:1.4;color:var(--muted);box-shadow:0 8px 20px -12px rgba(0,0,0,.4);pointer-events:none;white-space:nowrap;z-index:5}
.lab-tip strong{color:var(--ink)}.lab-tip .tip-kind{color:#7c3aed}
.lab-latest{margin:0 0 12px;font-size:12px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--brown)}
.featured .card-media{transition:box-shadow .6s}
.featured.fresh .card-media{box-shadow:0 0 0 3px rgba(234,88,12,.5),0 0 26px rgba(234,88,12,.35)}
/* The lab panel: progress now, the next investigation and sending a command. Always on under the lab picture; two
   columns on wide screens, stacked on phones. */
.lab-panel{width:100%;text-align:left;margin:4px 0 0;border:1px solid var(--line);border-radius:14px;background:var(--paper);overflow:hidden}
.lab-summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;padding:12px 16px;font-size:15px}
.lab-summary::-webkit-details-marker{display:none}
.lab-summary strong{color:var(--ink);font-weight:600}
.lab-summary::after{content:"+";margin-left:auto;color:var(--faint);font-size:16px}
.lab-panel[open] .lab-summary{border-bottom:1px solid var(--line)}
.lab-panel[open] .lab-summary::after{content:"–"}
.lab-body{display:grid;grid-template-columns:1fr 1fr}
.lab-body>div,.lab-body>form{padding:16px 18px}
.lab-now{border-bottom:1px solid var(--line)}
.lab-next{border-bottom:1px solid var(--line);border-left:1px solid var(--line)}
.lab-tell{grid-column:1/-1}
#bench{grid-column:1/-1;border-top:1px solid var(--line)}
.lab-panel .label.small{margin:0 0 8px}
.lab-panel .fine:empty{display:none}
/* Now: status in one glance. */
.now-line{display:flex;align-items:center;gap:8px;font-size:15px}
.now-line strong{color:var(--ink);font-weight:600}
.now-when{color:var(--faint);font-size:13px}
.now-when:not(:empty)::before{content:"·";margin-right:6px;color:var(--faint)}
.now-sub{margin-top:6px;font-size:14px;color:var(--muted)}
.now-sub:empty{display:none}
.now-q{margin-top:4px;font:500 16px/1.4 var(--serif);color:var(--ink)}
.now-q:empty{display:none}
.lab-now .steps{margin:12px 0 4px}
.lab-now .fine{margin-top:8px}
/* Next: the investigation the planner would pick, with a one-tap pick and the rest behind a disclosure. */
.next-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px}
.next-q{font:500 16px/1.4 var(--serif);color:var(--ink)}
.next-q:empty{display:none}
.next-act:empty{display:none}
.next-more{margin:10px 0 0;padding:0!important}
.next-more>summary{list-style:none;cursor:pointer;font:600 13px var(--sans);color:var(--orange-ink);padding:4px 0}
.next-more>summary::-webkit-details-marker{display:none}
.next-more>summary::after{content:"+";margin-left:8px;color:var(--faint)}
.next-more[open]>summary::after{content:"–"}
.next-more .items{margin:6px 0 0}
.lab-next .fine{margin-top:12px}
.up-later{color:var(--faint);font-size:13px}
.up-later-li{grid-template-columns:1fr!important;color:var(--faint)}
/* Tell the lab: one note, a type and a single Send. */
.lab-tell textarea{display:block;width:100%;box-sizing:border-box;margin:0 0 10px;padding:10px 12px;font:15px/1.45 var(--sans);color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:10px;resize:vertical;min-height:2.6em}
.lab-tell textarea:focus{outline:2px solid var(--orange-ink);outline-offset:-1px}
.tell-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tell-as{display:inline-flex;align-items:center;gap:8px;font:600 12px var(--sans);color:var(--faint)}
.tell-as select{font:500 14px var(--sans);color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:8px;padding:7px 10px;min-height:36px}
.tell-as select:focus-visible{outline:2px solid var(--orange-ink);outline-offset:2px}
.pill.send{background:var(--orange-ink);color:#fff;border-color:var(--orange-ink);min-height:36px;padding:8px 20px}
.pill.send:hover:not(:disabled){background:#92400e;border-color:#92400e}
.pill.send:disabled{background:#f1ede6;color:var(--faint);border-color:var(--line)}
.lab-tell .fine{margin-top:10px}
/* The notes you have sent, kept in this browser until the run replies. */
.guide-notes{list-style:none;margin:12px 0 0;padding:0}
.guide-notes li{display:flex;align-items:center;gap:10px;padding:8px 0;border-top:1px solid var(--line);font-size:14px}
.guide-notes .note-text{flex:1;color:var(--ink)}
.guide-notes .state{color:var(--orange-ink)}
.note-drop{min-width:24px;min-height:24px;color:var(--faint);font-size:16px;line-height:1}
/* Preview the lab's states: kept available but secondary. */
.lab-preview>summary{list-style:none;cursor:pointer;font:600 13px var(--sans);color:var(--orange-ink);padding:2px 0;display:none}
.lab-preview>summary::-webkit-details-marker{display:none}
.lab-preview>summary::after{content:"+";margin-left:8px;color:var(--faint)}
.lab-preview[open]>summary::after{content:"–"}
.lab-try{margin:0}
.lab-states{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 6px}
.lab-states .chip{font-size:12px;padding:6px 11px;min-height:28px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--muted)}
.lab-states .chip[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
/* Status dot */
.pulse{width:8px;height:8px;border-radius:50%;background:var(--faint);flex:none}
.lab-panel[data-state=idle] .pulse{background:#22a05a}
.lab-panel[data-state=active] .pulse{background:var(--warm);animation:pulse 1.6s ease-out infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(234,88,12,.5)}100%{box-shadow:0 0 0 9px rgba(234,88,12,0)}}
.steps{list-style:none;display:flex;padding:0;margin:14px auto 4px;max-width:620px}
.steps li{flex:1;font-size:11px;color:var(--faint);position:relative;padding-top:18px;text-align:center}
.steps li::before{content:"";position:absolute;top:3px;left:50%;width:9px;height:9px;margin-left:-4.5px;border-radius:50%;background:var(--track);z-index:1}
.steps li::after{content:"";position:absolute;top:7px;left:-50%;width:100%;height:1px;background:var(--track)}
.steps li:first-child::after{display:none}
.steps li.done{color:var(--muted)}.steps li.done::before{background:var(--ink)}
.steps li.active{color:var(--ink);font-weight:600}.steps li.active::before{background:var(--warm);animation:pulse 1.6s ease-out infinite}
#bench ul{margin:6px 0 0;padding:0;list-style:none;font-size:13px;color:var(--muted)}

/* Article head */
.hero{padding:40px 0 8px}
.hero-head{max-width:860px;margin:0 auto 34px;text-align:center}
.category{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--muted);padding-bottom:5px;border-bottom:2px solid var(--orange);margin-bottom:18px}
h1{font:700 clamp(34px,4.6vw,58px)/1.08 var(--serif);letter-spacing:-.015em;margin:0 0 18px;white-space:pre-line;text-wrap:balance}
/* Under the title: one line on why it matters, then when the guide was published or last updated. */
.dek{font:400 clamp(17px,1.5vw,20px)/1.5 var(--serif);color:var(--muted);max-width:52ch;margin:0 auto 14px;text-wrap:pretty}
.dateline{margin:0;font-size:13px;color:var(--faint);letter-spacing:.01em}
.dek a{color:inherit;text-decoration:underline;text-decoration-color:rgba(122,84,52,.4);text-underline-offset:3px}
.dek a:hover{color:var(--ink)}
.dek:empty,.dateline:empty{display:none}
.hero>.byline{margin:34px auto 0;padding-top:18px;border-top:1px solid var(--line);max-width:760px}
/* One quiet line under the guide: its status and how to ask. */
.byline{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px 10px;font-size:13px;color:var(--faint)}
.byline .sep::before{content:"·";color:var(--faint)}
.byline a{color:var(--muted);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
.byline a:hover{color:var(--ink)}
.byline .archive-btn{font:inherit;color:var(--faint);text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:2px 10px}
.byline .archive-btn:hover{color:var(--ink);border-color:var(--muted)}
.byline .sep[hidden],.byline .archive-btn[hidden]{display:none}
.tag{letter-spacing:.04em;text-transform:none;font-size:12px;padding:3px 10px;border-radius:999px;background:#eef8f2;color:#0b7a4e}
.tag:empty{display:none}
.tag[data-status=example]{background:#f1efe9;color:var(--muted)}
.tag[data-status=unverified],.tag[data-status=needs_review],.tag[data-status=failed]{background:#fdf1e6;color:#9a3d0a}

/* The interactive figure */
.workspace{margin:0 calc(50% - 50vw + 32px);max-width:none;background:var(--bg)}
@media (min-width:1304px){.workspace{margin:0 -32px}}
/* One box holds the scene, its subtitle and the playback bar, like a video with subtitles. */
.viewer{position:relative;background:linear-gradient(180deg,#fbf8f1 0%,#f3eee3 100%)}
.stage{position:relative;height:clamp(260px,calc(100svh - 360px),580px)}
#universe{position:absolute;inset:0;width:100%;height:100%;display:block}
.stage-note{position:absolute;left:20px;top:16px;font-size:12px;color:var(--muted);background:rgba(255,255,255,.85);padding:4px 11px;border-radius:999px}
.stage-note.right{left:auto;right:20px}
.stage-note:empty{display:none}
.stage-note strong{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}
.poster{position:absolute;inset:0;cursor:pointer}

.captions{max-width:900px;margin:0 auto;padding:6px 32px 18px;text-align:center;min-height:112px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}
.chapter-label{font-size:13px;font-weight:600;letter-spacing:.01em;color:var(--faint)}
.chapter-label:empty{display:none}
.caption-line{font:500 clamp(21px,2vw,27px)/1.4 var(--serif);max-width:44ch;text-wrap:balance;white-space:pre-line;color:var(--ink);min-height:2.9em}
.workspace.ended .captions{background:rgba(239,232,220,.92);border-radius:16px;margin:0 auto 18px;padding:22px 32px 24px;max-width:860px}
.workspace.ended .chapter-label{color:var(--brown)}
.workspace.ended .caption-line{font-weight:700}
.try-hint{font-size:14px;color:var(--brown);max-width:60ch}
.try-hint:empty{display:none}
.caption-line.enter{animation:caption-in .35s ease-out}
@keyframes caption-in{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

.scrub{position:relative;height:18px;cursor:pointer;touch-action:none;z-index:2}
.scrub::before{content:"";position:absolute;left:12px;right:12px;top:7px;height:4px;border-radius:4px;background:var(--track)}
.scrub .fill{position:absolute;left:12px;top:7px;height:4px;border-radius:4px;width:calc(var(--p,0)*(100% - 24px));background:var(--orange)}
.scrub .fill::after{content:"";position:absolute;right:-7px;top:-5px;width:14px;height:14px;border-radius:50%;background:var(--orange);box-shadow:0 1px 4px rgba(0,0,0,.25);opacity:0;transition:opacity .2s}
.scrub:hover .fill::after,.scrub:focus-visible .fill::after,.workspace.is-playing .scrub .fill::after{opacity:1}
.scrub:hover::before,.scrub:hover .fill{top:6px;height:6px}
#ticks [data-beat]{position:absolute;top:-3px;width:24px;height:24px;margin-left:-12px}
#ticks [data-beat]::before{content:"";position:absolute;left:10.5px;top:6px;width:3px;height:12px;border-radius:2px;background:var(--faint)}
#ticks [data-beat].passed::before{background:var(--brown)}
/* Play, timeline, time and restart share one bar at the bottom of the player. */
.bar{display:flex;align-items:center;gap:10px;padding:2px 18px 14px}
.bar .scrub{flex:1}
.bar .round.quiet{width:32px;height:32px}
.round{width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;flex:none;transition:background .2s,transform .2s}
.round:hover{background:var(--orange-ink)}
.round:active{transform:scale(.94)}
.round.quiet{background:transparent;color:var(--muted);font-size:18px}
.round.quiet:hover{background:#f3f0ea;color:var(--ink)}
.round .icon{width:0;height:0;border-left:12px solid currentColor;border-top:7.5px solid transparent;border-bottom:7.5px solid transparent;margin-left:3px}
.round.is-playing .icon{width:12px;height:14px;border:0;margin:0;border-left:4px solid currentColor;border-right:4px solid currentColor}
.time{font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums}
.workspace:not(.started) #play{width:auto;padding:0 20px 0 16px;border-radius:999px;gap:10px;display:flex;align-items:center;background:var(--orange-ink)}
.workspace:not(.started) #play::after{content:"Play";font-weight:600;font-size:15px}
.workspace:not(.started) #reset{display:none}
/* Sliders sit inside the player, under the captions, only while exploring. */
.controls{display:none;grid-template-columns:1fr 1fr;gap:28px 40px;max-width:760px;margin:0 auto;padding:2px 32px 16px}
.workspace.exploring .controls{display:grid}
.workspace[data-controls=none] #explore{display:none}
#explore[aria-pressed=true]{background:#efe9df;color:var(--ink)}
#sound .off{display:none}#sound[aria-pressed=false] .waves{display:none}#sound[aria-pressed=false] .off{display:inline}
.workspace[data-controls=first] .controls,.workspace[data-controls=second] .controls{grid-template-columns:1fr;max-width:520px}
.workspace[data-controls=none] .controls{display:none}
.control{display:block;font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.control-head{display:flex;justify-content:space-between}
.control small{display:block;font-size:12px;color:var(--faint);font-weight:400;letter-spacing:0;text-transform:none;margin-top:2px}
output{color:var(--ink);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:0;text-transform:none}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:24px;background:transparent;margin:6px 0 0;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:3px;border-radius:3px;background:var(--track)}
input[type=range]::-moz-range-track{height:3px;border-radius:3px;background:var(--track)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;margin-top:-7.5px;border-radius:50%;background:#fff;border:2px solid var(--orange);box-shadow:0 2px 6px rgba(0,0,0,.15);transition:transform .15s}
input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid var(--orange)}
input[type=range]:active::-webkit-slider-thumb{transform:scale(1.15)}
input[type=range]:disabled{opacity:.4;cursor:default}

.pill{font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff}
.pill:hover:not(:disabled){border-color:var(--ink)}
.pill:disabled{color:var(--faint);cursor:default}

/* Section heads */
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:26px;padding-bottom:12px;border-bottom:1px solid var(--ink)}
.section-head h2{font:700 30px/1.15 var(--serif);letter-spacing:-.01em;margin:0}
.section-head .muted{font-size:13px;white-space:nowrap}

/* The featured investigation: a large preview beside its title */
.card{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:48px;align-items:start}
.card-media{position:relative;aspect-ratio:16/9;background:linear-gradient(180deg,#fbf8f1,#f2ece1);overflow:hidden}
.thumb{position:absolute;inset:0;width:100%;height:100%}
.mini-play{position:absolute;left:16px;bottom:16px;width:40px;height:40px;border-radius:50%;background:var(--ink);transition:transform .2s,background .2s}
.mini-play::after{content:"";position:absolute;left:16px;top:13px;border-left:11px solid #fff;border-top:7px solid transparent;border-bottom:7px solid transparent}
.card:hover .mini-play{transform:scale(1.08);background:var(--orange-ink)}
.card-body{display:flex;flex-direction:column;gap:12px;padding-top:4px}
.card-cat{align-self:flex-start;font-size:10.5px;font-weight:600;letter-spacing:.3em;text-transform:uppercase;color:var(--muted);padding-bottom:4px;border-bottom:2px solid var(--orange)}
.card h3{font:700 clamp(30px,3.4vw,46px)/1.18 var(--serif);letter-spacing:-.01em;margin:0}
.card:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;margin-top:6px}
.card-go{font-size:17px;font-weight:700;color:var(--ink)}
.card-go::before{content:"›";color:var(--orange);font-weight:700;margin-right:12px}
.card:hover .card-go{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.card-date{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font:12px var(--serif);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.card-excerpt{font:italic 400 clamp(17px,1.4vw,20px)/1.7 var(--serif);color:var(--muted)}
.badge{font-size:11px;font-weight:600;letter-spacing:.06em;padding:2px 9px;border-radius:999px}
.badge:empty{display:none}
.badge[data-kind=new]{background:#fdf1e6;color:#b4520f}
.badge[data-kind=now]{background:var(--ink);color:#fff}
.badge[data-kind=seen]{background:#f1efe9;color:var(--muted)}
.badge[data-kind=updated]{background:#f3ece0;color:var(--brown)}
.thumb-updated{position:absolute;top:8px;right:8px;z-index:1;font:600 10px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;padding:3px 7px;border-radius:999px;background:rgba(20,23,28,.72);color:#fff}

/* Up next: questions open for tomorrow's run */
.items{list-style:none;margin:18px 0 0;padding:0}
.items li{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;padding:9px 4px;font:400 16px/1.4 var(--serif);color:var(--muted)}
.items li+li{border-top:1px solid #f0ece5}
.state{font:600 12px var(--sans);white-space:nowrap}
.state.pill{padding:5px 12px}
.state.pick{border-color:var(--orange);color:var(--brown)}
.state.picked{color:var(--orange-ink)}
.state.wait{color:var(--faint)}

/* How the lab checked this */
.behind{margin:56px auto 0;max-width:1100px;border-top:1px solid var(--ink)}
.behind>summary{list-style:none;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:22px 0;cursor:pointer;font:700 20px var(--serif)}
.behind>summary::-webkit-details-marker{display:none}
.behind>summary>span:first-child::after{content:"+";margin-left:10px;color:var(--orange-ink);font-family:var(--sans);font-weight:400}
.behind[open]>summary>span:first-child::after{content:"–"}
.chips{font:400 13px var(--sans);color:var(--muted)}
.behind-body{padding-bottom:34px;font-size:15px;color:#3a3c40}
.behind h3{font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--faint);margin:28px 0 10px}
.research-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.research-grid h3:first-child{margin-top:0}
.research-grid p{white-space:pre-line;font-family:var(--serif);font-size:16px;line-height:1.6}
.research-grid ul{padding-left:18px;margin:0}
.checks{list-style:none;padding:0!important}
.checks li{padding-left:22px;position:relative;margin-bottom:5px}
.checks li::before{content:"";position:absolute;left:2px;top:7px;width:9px;height:5px;border-left:2px solid #16a34a;border-bottom:2px solid #16a34a;transform:rotate(-45deg)}
.checks li.fail::before{border-color:#dc2626}
#illustration-note{font-family:var(--serif);font-size:16px}
.provenance{font-size:14px;color:#9a3d0a;background:#fdf1e6;border-radius:8px;padding:10px 12px;margin:0 0 12px}
.provenance:empty{display:none}
.sources{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.sources a{font:600 16px var(--serif);color:var(--ink);text-decoration:underline;text-decoration-color:var(--orange);text-underline-offset:4px}
.sources small{display:block;color:var(--muted);margin-top:4px;font-size:13px}
.history{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}
.revision{display:grid;grid-template-columns:120px 1fr;gap:14px;border:1px solid var(--line);border-radius:6px;padding:12px}
.revision img{width:120px;height:90px;object-fit:cover;border-radius:4px;background:var(--paper)}
.revision h4{margin:0 0 4px;font-size:13px}
.revision p{font-size:12px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.behind-foot{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-top:26px}
.behind-foot summary{font-size:12px;color:var(--muted);cursor:pointer}
#record{max-height:360px;overflow:auto;font-size:11px;background:var(--paper);border-radius:6px;padding:14px;margin-top:10px;max-width:calc(100vw - 64px)}

/* Proposals sheet */
.sheet{width:min(720px,calc(100vw - 32px));max-height:min(820px,calc(100vh - 48px));border:0;border-radius:14px;padding:0;box-shadow:0 30px 80px -20px rgba(0,0,0,.45);color:var(--ink);background:#fff}
.sheet::backdrop{background:rgba(20,20,20,.35);backdrop-filter:blur(3px)}
.sheet-head{position:sticky;top:0;background:#fff;display:flex;justify-content:space-between;gap:16px;padding:22px 24px 14px;border-bottom:1px solid var(--line)}
.sheet-head h2{font:700 24px/1.2 var(--serif);margin:0 0 4px}
.sheet-head .muted{font-size:13px;max-width:52ch}
.proposals{padding:16px 24px 24px;display:flex;flex-direction:column;gap:12px}
.proposal{border:1px solid var(--line);border-radius:10px;padding:16px 18px}
.proposal header{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 10px;margin-bottom:8px}
.proposal h3{font:700 18px/1.3 var(--serif);margin:0;flex:1 1 260px}
.proposal .meta{font-size:12px;color:var(--faint)}
.proposal p{font-size:14px;margin:6px 0 0}
.proposal p b{font-weight:600}
.proposal .why{color:var(--muted)}
.proposal .evidence{font-size:12px;margin-top:8px;display:flex;flex-wrap:wrap;gap:4px 12px}
.proposal .evidence a{color:var(--muted);text-decoration:underline;text-underline-offset:2px}
.proposal .actions{display:flex;gap:8px;margin-top:12px;align-items:center}
.proposal .approve{border-color:#16a34a;color:#15803d}
.proposal .status{font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:#f1efe9;color:var(--muted)}
.proposal .status[data-status=approved]{background:#ecfdf3;color:#15803d}
.empty{font-size:14px;color:var(--muted);padding:12px 0}

footer{max-width:1240px;margin:90px auto 0;padding:28px 32px 44px;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--faint);border-top:1px solid var(--line)}

@media (max-width:900px){
 .research-grid{grid-template-columns:1fr}
 .card{grid-template-columns:1fr;gap:18px}
}
@media (max-width:560px){
 .top{padding:14px 18px}
 .lab-body{grid-template-columns:1fr}
 .lab-next{border-left:0}
 .lab-caption{margin-top:14px}
 .lab-intro{font-size:16px}
 .mark{width:28px;height:28px}
 .wordmark{font-size:20px}
 main{padding:0 18px}
 .readbar{height:56px;padding:0 16px;gap:12px}
 #readbar-title{font-size:16px}
 .hero{padding-top:26px}
 h1{font-size:32px}
 .workspace{margin:0 -18px}
 .stage{height:auto;aspect-ratio:4/5}
 .stage-note{left:12px}
 .stage-note.right{left:12px;right:auto;top:44px}
 .captions{padding:4px 18px 16px;min-height:140px}
 .caption-line{font-size:21px;min-height:4.35em}
 .bar{padding:2px 10px 12px;gap:6px}
 .time{min-width:0}
 .controls{grid-template-columns:1fr;gap:14px;padding:2px 18px 14px}
 .steps li{font-size:0}
 .steps li.active{font-size:11px}
 .history{grid-template-columns:1fr}
 .revision{grid-template-columns:90px 1fr}.revision img{width:90px;height:70px}
 footer{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
 *,*::before,*::after{transition:none!important;animation:none!important}
 html{scroll-behavior:auto}
}

/* Views: the home index and individual investigation pages. */
body[data-view=home] .hero,body[data-view=home] .behind,body[data-view=home] #more,body[data-view=home] .readbar{display:none}
body[data-view=article] #home{display:none}
/* An investigation opens on its own heading: no site header or lab status above it. */
body[data-view=article] .top,body[data-view=article] #lab{display:none}
body[data-view=article] .hero{padding-top:48px}
/* Guide pages: a quiet way home above the heading, as the masthead is hidden there (and in the installed app). */
main{position:relative}
.home-link{display:none}
body[data-view=article] .home-link{display:inline-block;position:absolute;top:10px;padding:6px 0;font-size:13px;color:var(--muted)}
.home-link:hover{color:var(--ink)}
/* A guide still being published shows only its heading and the line under it. */
body[data-pending] .category,body[data-pending] .workspace,body[data-pending] .byline,body[data-pending] .behind{display:none}
.home{margin:36px auto 0;max-width:1100px}
.featured{margin-bottom:76px}
.more{margin:56px auto 0;max-width:1100px}
/* Grid cards stay quiet: a framed picture that eases in on hover, a small topic line and the title; the whole card
   is the link, so no play button. */
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:44px 28px}
.thumb-card{display:flex;flex-direction:column;gap:8px}
.thumb-card .card-media{aspect-ratio:16/10;border-radius:6px;margin-bottom:6px}
.thumb-card .card-media::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(20,23,28,.08);pointer-events:none}
.thumb-card .thumb{transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.thumb-card:hover .thumb{transform:scale(1.04)}
.thumb-card .card-cat{border-bottom:none;padding-bottom:0;font-size:10px;letter-spacing:.22em;color:var(--faint)}
.thumb-card h3{font:700 19px/1.3 var(--serif);margin:0;text-wrap:pretty}
.thumb-card:hover h3{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
@media (prefers-reduced-motion:reduce){.thumb-card .thumb{transition:none}.thumb-card:hover .thumb{transform:none}}

/* Drafts: owner review only; the checking story and path do not apply. */
#run-banner[data-status=draft]{background:#fdf2e3;color:#9a4b0b}
.draft-note{display:none}
body[data-draft=yes] .draft-note:not(:empty){display:block;max-width:760px;margin:14px auto 0;padding:0 24px;font-size:13px;line-height:1.5;color:var(--muted);text-align:center}

/* Home: every investigation in one grid under the featured one, then the questions open for tomorrow; request
   buttons only while the daily run is on. */
.drafts-shelf{margin-top:56px}
.drafts-shelf .chapter-title{margin-bottom:8px}
.drafts-note{margin:0 0 24px;font-size:14px;color:var(--muted);max-width:60ch}
.archived-shelf{margin-top:56px;border-top:1px solid var(--line);padding-top:28px}
.archived-shelf>summary{list-style:none;cursor:pointer;display:inline-block;margin-bottom:8px}
.archived-shelf>summary::-webkit-details-marker{display:none}
.archived-shelf>summary .chapter-title{display:inline-flex;margin:0}
.archived-shelf>summary:hover .chapter-title{color:var(--brown)}
.archived-shelf[open]>summary{margin-bottom:16px}
.up-later{margin:12px 4px 0;font-size:13px;color:var(--faint)}
/* Phones: the grid becomes a list, a small picture beside each title. */
@media (max-width:600px){.gallery .thumbs{grid-template-columns:1fr;gap:18px}
 .gallery .thumb-card{display:grid;grid-template-columns:128px 1fr;grid-template-rows:auto 1fr;column-gap:14px;row-gap:8px;align-items:start}
 .gallery .thumb-card .card-media{grid-row:1/3;margin-bottom:0}
 .gallery .thumb-card .card-cat{justify-self:start;font-size:9.5px;letter-spacing:.2em}
 .gallery .thumb-card h3{font-size:16px}}
.chapter-title{display:flex;align-items:baseline;gap:14px;font:700 24px/1.2 var(--serif);margin:0 0 20px}
.chapter-title span{font:600 11px var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--faint)}
.talk{display:none}
body[data-paused=no] .talk{display:contents}
.foot-links{display:flex;gap:18px}
.foot-links a,.foot-links button{color:var(--muted);font-size:13px}
.foot-links a:hover,.foot-links button:hover{color:var(--ink)}
.notify-panel{max-width:1240px;margin:-26px auto 40px;padding:0 32px;font-size:13px;color:var(--muted)}
.notify-panel p{margin:0 0 8px}
.notify-panel textarea{display:block;width:100%;margin:0 0 8px;padding:9px 11px;font:16px/1.4 ui-monospace,Menlo,monospace;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;resize:none;word-break:break-all}
body[data-draft=yes] .behind{display:none}