/* Before the Implant — design tokens. Sibling of itsthemedium.com: bone on near-black,
   one hot accent. Here the near-black is cool (deep water / inner ear), the accent is signal cyan,
   and the failure colour is hot coral. Status is never colour-alone: every status has a glyph + word. */
:root{
  --bg:#090b10; --bg2:#10141c; --bg3:#161c26;
  --bone:#ece7dc; --dim:#aea89b; --faint:#746e63; --rule:#262c38;
  --signal:#5fdcff; --signal-dk:#1c7fa0; --hot:#ff5c3f; --hot-dk:#a9321d;
  --amber:#f2b85c; --ok:#63d394;
  --serif:"Fraunces","Iowan Old Style",Georgia,serif;
  --sans:"Archivo",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --head-h:60px; --gutter:clamp(18px,6vw,96px); --maxw:1180px;
}
*{box-sizing:border-box}
html{background:var(--bg);-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--head-h) + 12px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--bone);font-family:var(--sans);font-size:16.5px;line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
::selection{background:var(--signal-dk);color:#fff}
a{color:inherit;text-decoration-color:var(--faint);text-underline-offset:3px}
a:hover{text-decoration-color:var(--signal)}
button{font-family:inherit;color:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:3px}
.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}
.skip{position:fixed;left:12px;top:-70px;z-index:400;background:var(--bone);color:#0a0c10;padding:10px 14px;border-radius:6px;font-weight:600;text-decoration:none}
.skip:focus{top:12px}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.015em;line-height:1.08;margin:0 0 .5em;font-variation-settings:"opsz" 144}
h1{font-size:clamp(40px,7.2vw,96px);font-weight:700}
h2{font-size:clamp(30px,4.6vw,58px)}
h3{font-size:clamp(21px,2.2vw,27px);font-variation-settings:"opsz" 48}
h1 em,h2 em,.hot-em{font-style:italic;color:var(--signal)}
.hot{color:var(--hot)}
p{margin:0 0 1em}
.lede{font-size:clamp(18px,1.6vw,22px);line-height:1.5;color:var(--bone);max-width:38em}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);margin:0 0 18px}
.eyebrow b{color:var(--signal);font-weight:500}
.mono{font-family:var(--mono)}
.muted{color:var(--dim)}
.small{font-size:14px}
.num{font-variant-numeric:tabular-nums}

/* fixed layers */
#gl{position:fixed;inset:0;z-index:0;background:
  radial-gradient(110% 80% at 70% 15%, #0f1f2c 0%, rgba(15,31,44,0) 55%),
  radial-gradient(80% 60% at 10% 90%, #121018 0%, rgba(18,16,24,0) 60%), var(--bg)}
#gl canvas{display:block;width:100%;height:100%}
.vignette{position:fixed;inset:0;z-index:1;pointer-events:none;background:radial-gradient(120% 100% at 50% 40%, rgba(0,0,0,0) 50%, rgba(0,0,0,.6) 100%)}
.grain{position:fixed;inset:-50%;z-index:2;pointer-events:none;opacity:.045;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 9s steps(6) infinite}
@keyframes grain{0%,100%{transform:translate(0,0)}20%{transform:translate(-4%,3%)}40%{transform:translate(3%,-4%)}60%{transform:translate(-3%,-2%)}80%{transform:translate(4%,3%)}}
@media (prefers-reduced-motion:reduce){.grain{animation:none}}

/* header */
header.bar{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--head-h);border-bottom:1px solid transparent;
  background:linear-gradient(rgba(9,11,16,.95),rgba(9,11,16,.6) 70%,rgba(9,11,16,0));transition:background .4s,border-color .4s}
header.bar.solid{background:rgba(9,11,16,.92);border-color:var(--rule);backdrop-filter:blur(10px)}
.bar-in{max-width:1440px;margin:0 auto;height:100%;padding:0 clamp(14px,2.4vw,32px);display:flex;align-items:center;gap:16px}
.wordmark{font-family:var(--serif);font-weight:700;font-size:20px;text-decoration:none;letter-spacing:-.01em;white-space:nowrap;display:flex;align-items:center;gap:10px}
.wordmark svg{width:26px;height:26px;flex:none}
.wordmark em{font-style:italic;color:var(--signal)}
.live-chip{font-family:var(--mono);font-size:11.5px;color:var(--dim);border:1px solid var(--rule);border-radius:999px;padding:4px 10px;white-space:nowrap;display:flex;gap:8px;align-items:center}
.live-chip .dot{width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 0 rgba(242,184,92,.6);animation:pulse 1.8s infinite}
.live-chip.ok .dot{background:var(--ok);animation:none}
.live-chip.off .dot{background:var(--faint);animation:none}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(242,184,92,.6)}100%{box-shadow:0 0 0 9px rgba(242,184,92,0)}}
@media (prefers-reduced-motion:reduce){.live-chip .dot{animation:none}}
nav.chapters{margin-left:auto;display:flex;gap:4px}
nav.chapters a{font-size:13.5px;text-decoration:none;color:var(--dim);padding:7px 10px;border-radius:6px;white-space:nowrap}
nav.chapters a:hover,nav.chapters a[aria-current="true"]{color:var(--bone);background:var(--bg3)}
.menu-btn{margin-left:auto;display:none;background:var(--bg3);border:1px solid var(--rule);border-radius:6px;padding:8px 12px;font-size:14px;cursor:pointer}
@media (max-width:980px){nav.chapters{display:none;position:absolute;top:var(--head-h);left:0;right:0;flex-direction:column;background:var(--bg2);border-bottom:1px solid var(--rule);padding:10px}nav.chapters.open{display:flex}.menu-btn{display:block}.live-chip span.t{display:none}}

/* layout */
main{position:relative;z-index:3}
section{position:relative;padding:clamp(72px,10vw,140px) var(--gutter)}
.wrap{max-width:var(--maxw);margin:0 auto}
.narrow{max-width:760px}
.chapter{min-height:100vh;display:flex;align-items:center}
.chapter .wrap{width:100%}
.panel{background:rgba(16,20,28,.72);backdrop-filter:blur(8px);border:1px solid var(--rule);border-radius:14px;padding:clamp(20px,3vw,36px)}
.glass{background:linear-gradient(180deg,rgba(9,11,16,.0),rgba(9,11,16,.85) 20%,rgba(9,11,16,.85) 80%,rgba(9,11,16,0))}
.solid-bg{background:var(--bg)}
.grid{display:grid;gap:clamp(16px,2.5vw,32px)}
.g2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
hr.rule{border:0;border-top:1px solid var(--rule);margin:48px 0}

/* story photos: photos stay photos (no WebGL over faces), gentle fade only */
.story{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(16px,2.5vw,32px);align-items:start}
.story .panel:first-of-type{grid-column:2}
.photo{margin:0;position:relative}
.photo img{display:block;width:100%;height:auto;border-radius:16px;box-shadow:0 30px 80px rgba(0,0,0,.55);background:var(--bg3)}
.photo figcaption{font-family:var(--mono);font-size:12px;color:var(--dim);margin-top:10px;letter-spacing:.06em}
.photo-wide{grid-column:1;grid-row:1}
.why{grid-column:1/-1;display:grid;grid-template-columns:minmax(200px,1fr) 2fr;gap:clamp(16px,2.5vw,32px);align-items:center}
.photo-tall{max-width:360px}
@media (max-width:900px){.story{grid-template-columns:1fr}.story .panel:first-of-type,.photo-wide,.why{grid-column:1}.why{grid-template-columns:1fr}.photo-tall{max-width:70vw}}

/* story chapters */
.story-q{font-family:var(--serif);font-variation-settings:"opsz" 72;font-size:clamp(20px,2vw,26px);line-height:1.4}
.music-line{font-size:clamp(34px,6vw,84px);font-style:italic;font-weight:500;max-width:14em;text-shadow:0 2px 30px rgba(9,11,16,.9)}
#born h2{max-width:12em}
.dance{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(16px,3vw,40px);align-items:center}
.video-fig{margin:0;display:contents}
.video-box{position:relative;border-radius:16px;overflow:hidden;background:var(--bg3);box-shadow:0 30px 80px rgba(0,0,0,.6);aspect-ratio:16/9}
.video-box video{display:block;width:100%;height:100%;object-fit:cover}
.video-box video::cue{background:rgba(9,11,16,.85);color:var(--bone);font-family:var(--sans);font-size:clamp(14px,1.6vw,20px)}
.video-ctl{position:absolute;left:0;right:0;bottom:0;display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:12px;background:linear-gradient(transparent,rgba(9,11,16,.85))}
.vbtn{background:var(--bone);color:#0a0c10;border:0;border-radius:999px;padding:8px 14px;font-weight:600;font-size:14px;cursor:pointer}
.vbtn[aria-pressed="true"]{background:var(--signal)}
.vnote{font-size:12px;color:var(--bone);margin-left:auto}
@media (max-width:900px){.dance{grid-template-columns:1fr}.vnote{margin-left:0;width:100%}}

/* film slot (hidden until the file exists) */
.film{margin:36px 0 0;max-width:820px}
.film .video-box{aspect-ratio:16/9}

/* for Graham */
.ladder{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:0;counter-reset:l}
.ladder li{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:16px 0;border-top:1px solid var(--rule);position:relative}
.ladder li::before{counter-increment:l;content:counter(l);font-family:var(--serif);font-size:28px;line-height:1;color:var(--faint)}
.ladder li.here::before{color:var(--signal)}
.ladder li.here{background:linear-gradient(90deg,rgba(95,220,255,.08),transparent 60%)}
.ladder li.here b::after{content:" ← we are here";font-family:var(--mono);font-size:12px;color:var(--signal);font-weight:500;letter-spacing:.08em}
.ladder b{display:block;font-family:var(--serif);font-size:19px;font-weight:600}
.ladder p{margin:4px 0 0;color:var(--dim);font-size:15px}
.ladder .pct{font-family:var(--mono);font-size:12.5px;color:var(--bone);margin-top:6px;display:block}
.dir-wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.5vw,32px);align-items:start}
@media (max-width:900px){.dir-wrap{grid-template-columns:1fr}}
.dir-read{min-height:4.5em;font-size:15px;color:var(--bone)}
.kv{display:grid;grid-template-columns:1fr auto auto;gap:6px 14px;align-items:center;font-size:14.5px;margin:12px 0}
.kv .v{font-family:var(--mono);text-align:right}
.kv .worse{color:var(--hot)}

/* hero */
#hero{min-height:100vh;display:flex;align-items:flex-end;padding-bottom:12vh}
#hero .wrap{max-width:1180px}
.hero-text{max-width:820px;text-shadow:0 2px 24px rgba(9,11,16,.9)}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--bone);color:#0a0c10;border:0;border-radius:999px;padding:12px 20px;font-weight:600;font-size:15px;text-decoration:none;cursor:pointer}
.btn.ghost{background:transparent;color:var(--bone);border:1px solid var(--dim)}
.btn:hover{filter:brightness(1.08)}
.scroll-hint{position:absolute;left:var(--gutter);bottom:4vh;font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}
.scroll-hint .ln{display:inline-block;width:38px;height:1px;background:var(--dim);vertical-align:middle;margin-right:10px;transform-origin:left;animation:ln 2.2s ease-in-out infinite}
@keyframes ln{0%,100%{transform:scaleX(.4)}50%{transform:scaleX(1)}}
@media (prefers-reduced-motion:reduce){.scroll-hint .ln{animation:none}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:18px;margin:28px 0}
.stat{border-top:2px solid var(--rule);padding-top:12px}
.stat .v{font-family:var(--serif);font-size:clamp(34px,4vw,54px);line-height:1;font-weight:600;letter-spacing:-.02em}
.stat .v.sig{color:var(--signal)}.stat .v.hot{color:var(--hot)}
.stat .l{font-size:13.5px;color:var(--dim);margin-top:8px}

/* status chips (glyph + word, never colour only) */
.status{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px;border:1px solid var(--rule);color:var(--bone)}
.status::before{content:attr(data-glyph);font-weight:700}
.status[data-status="baseline"]{border-color:var(--signal);color:var(--signal)}
.status[data-status="advance"]{border-color:var(--ok);color:var(--ok)}
.status[data-status="null"],.status[data-status="fail"]{border-color:var(--hot);color:var(--hot)}
.status[data-status="running"]{border-color:var(--amber);color:var(--amber)}
.status[data-status="running"]::before{animation:blink 1.1s steps(2) infinite}
@keyframes blink{50%{opacity:.25}}
@media (prefers-reduced-motion:reduce){.status[data-status="running"]::before{animation:none}}
.status[data-status="pending"]{border-color:var(--dim);color:var(--dim)}

/* scorecard */
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--rule);vertical-align:top}
th{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);font-weight:500}
td.num,th.num{text-align:right;font-family:var(--mono);font-size:14px}
tr.fail td{background:rgba(255,92,63,.1)}
tr.fail td:first-child{border-left:4px solid var(--hot);font-weight:600}
tr.fail .status{font-size:12px}
tr.info td{color:var(--dim)}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.explain-btn{background:transparent;border:1px solid var(--rule);border-radius:999px;padding:4px 10px;font-size:12.5px;cursor:pointer;color:var(--dim);white-space:nowrap}
.explain-btn:hover{color:var(--bone);border-color:var(--dim)}
.explain-out{grid-column:1/-1;background:var(--bg3);border-left:3px solid var(--signal);padding:12px 14px;border-radius:0 8px 8px 0;font-size:15px;margin:6px 0 0}
.explain-out.err{border-left-color:var(--hot)}

/* level toggle */
.toggle{display:inline-flex;border:1px solid var(--rule);border-radius:999px;padding:3px;gap:2px;background:var(--bg2)}
.toggle button{background:transparent;border:0;border-radius:999px;padding:6px 14px;font-size:13.5px;cursor:pointer;color:var(--dim)}
.toggle button[aria-pressed="true"]{background:var(--bone);color:#0a0c10;font-weight:600}

/* wall section */
#wall .big{font-family:var(--serif);font-size:clamp(64px,16vw,220px);line-height:.9;font-weight:700;letter-spacing:-.04em;color:var(--hot);margin:0 0 20px}
#wall .big small{font-size:.32em;letter-spacing:0;color:var(--bone);font-weight:500;font-style:italic}
.slider-box{margin-top:28px}
.slider-box input[type=range]{width:100%;accent-color:var(--signal);height:32px}
.slider-read{display:flex;flex-wrap:wrap;gap:28px;margin-top:10px;font-family:var(--mono);font-size:14px}
.slider-read b{font-size:28px;display:block;font-family:var(--serif);font-weight:600;letter-spacing:-.02em}

/* charts */
.chart{width:100%;position:relative}
.chart svg{width:100%;height:auto;display:block;overflow:visible}
.chart .axis text{fill:var(--dim);font-family:var(--mono);font-size:11px}
.chart .axis line,.chart .axis path{stroke:var(--rule)}
.chart .grid line{stroke:var(--rule);stroke-dasharray:2 4}
.chart .lbl{fill:var(--bone);font-family:var(--mono);font-size:12px}
.chart .lbl.dim{fill:var(--dim)}
.chart .req{stroke:var(--hot);stroke-width:1.5;stroke-dasharray:6 4}
.chart .req-l{fill:var(--hot);font-family:var(--mono);font-size:12px;font-weight:600}
.legend{display:flex;flex-wrap:wrap;gap:16px;font-size:13.5px;color:var(--dim);margin:10px 0 0}
.legend i{display:inline-block;width:18px;height:3px;vertical-align:middle;margin-right:7px;border-radius:2px}
.legend i.dash{background:repeating-linear-gradient(90deg,currentColor 0 5px,transparent 5px 9px)}
.tip{position:absolute;pointer-events:none;background:var(--bg3);border:1px solid var(--rule);border-radius:8px;padding:8px 10px;font-family:var(--mono);font-size:12.5px;color:var(--bone);transform:translate(-50%,-110%);white-space:nowrap;opacity:0;transition:opacity .12s}
.tip.on{opacity:1}
details{border:1px solid var(--rule);border-radius:10px;padding:0 16px;margin-top:14px;background:var(--bg2)}
summary{cursor:pointer;padding:12px 0;font-weight:600}
details[open] summary{border-bottom:1px solid var(--rule);margin-bottom:10px}

/* generations */
.tree{margin:28px 0 8px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.tree svg{width:100%;min-width:720px;height:auto;display:block}
.tree-hint{display:none;font-family:var(--mono);font-size:12px;color:var(--dim);margin:-4px 0 12px}
@media (max-width:760px){.tree-hint{display:block}}
.tree .trunk{stroke:var(--dim);stroke-width:3;fill:none}
.tree .dead{stroke:var(--hot);stroke-width:2.5;fill:none;stroke-dasharray:7 5}
.tree .live{stroke:var(--amber);stroke-width:2.5;fill:none;stroke-dasharray:4 4}
.tree .pend{stroke:var(--faint);stroke-width:2;fill:none;stroke-dasharray:2 6}
.tree .node{fill:var(--bg);stroke:var(--dim);stroke-width:2.5}
.tree .node.baseline{fill:var(--signal);stroke:var(--signal)}
.tree .node.advance{fill:var(--ok);stroke:var(--ok)}
.tree .node.null,.tree .node.fail{fill:var(--bg);stroke:var(--hot)}
.tree .node.running{fill:var(--amber);stroke:var(--amber)}
.tree .x{stroke:var(--hot);stroke-width:2.5}
.tree text{font-family:var(--mono);font-size:12px;fill:var(--bone)}
.tree text.dim{fill:var(--dim);font-size:11px}
.tree .running-ring{fill:none;stroke:var(--amber);stroke-width:2;transform-origin:center;transform-box:fill-box;animation:ring 1.6s ease-out infinite}
@keyframes ring{0%{transform:scale(1);opacity:.9}100%{transform:scale(2.4);opacity:0}}
@media (prefers-reduced-motion:reduce){.tree .running-ring{animation:none;opacity:.6}}
.gen-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px;margin-top:28px}
.gen{border:1px solid var(--rule);border-radius:14px;padding:20px;background:var(--bg2);display:flex;flex-direction:column;gap:10px;position:relative}
.gen[data-status="baseline"]{border-color:var(--signal-dk)}
.gen[data-status="running"]{border-color:var(--amber);background:linear-gradient(180deg,rgba(242,184,92,.08),var(--bg2) 60%)}
.gen[data-status="running"]::after{content:"";position:absolute;inset:-1px;border-radius:14px;border:1px solid var(--amber);opacity:.5;animation:ring2 2.4s ease-out infinite;pointer-events:none}
@keyframes ring2{0%{transform:scale(1);opacity:.6}100%{transform:scale(1.03);opacity:0}}
@media (prefers-reduced-motion:reduce){.gen[data-status="running"]::after{animation:none;opacity:.5}}
.gen h3{margin:0;display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.gen .change{color:var(--bone);font-size:15.5px}
.gen dl{margin:0;display:grid;grid-template-columns:1fr auto;gap:4px 14px;font-size:14px}
.gen dt{color:var(--dim)}.gen dd{margin:0;font-family:var(--mono);text-align:right;font-size:13px}
.gen .note{font-size:14px;color:var(--dim);border-top:1px solid var(--rule);padding-top:10px;margin:0}
.gen .eta{font-family:var(--mono);font-size:12.5px;color:var(--amber)}
.gen .acts{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}
.gen .acts a{font-size:13px;color:var(--dim)}

/* electrodes */
.electrodes{display:grid;grid-template-columns:repeat(22,1fr);gap:4px;margin:18px 0 8px;height:120px;align-items:end}
.electrodes i{display:block;background:var(--rule);border-radius:3px 3px 0 0;height:30%;transition:height .25s,background .25s}
.electrodes i.on{background:var(--signal);height:100%}
.electrodes-cap{font-family:var(--mono);font-size:12.5px;color:var(--dim)}

/* latency strip */
.latency{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;font-family:var(--mono);font-size:13px;margin-top:18px}
.latency .bar{height:14px;background:var(--rule);border-radius:7px;position:relative;overflow:hidden}
.latency .bar i{position:absolute;left:0;top:0;bottom:0;background:var(--signal);border-radius:7px}

/* ask */
.ask-form{display:flex;gap:10px;margin-top:18px}
.ask-form input{flex:1;background:var(--bg3);border:1px solid var(--rule);color:var(--bone);border-radius:999px;padding:14px 18px;font-size:16px;font-family:inherit;min-width:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{background:transparent;border:1px solid var(--rule);border-radius:999px;padding:7px 13px;font-size:13.5px;cursor:pointer;color:var(--dim);text-align:left}
.chip:hover{color:var(--bone);border-color:var(--dim)}
.answer{margin-top:22px;display:none}
.answer.on{display:block}
.steps{list-style:none;padding:0;margin:0 0 16px;display:grid;gap:6px}
.steps li{font-family:var(--mono);font-size:12.5px;color:var(--dim);display:grid;grid-template-columns:auto 1fr;gap:10px;border-left:2px solid var(--rule);padding:4px 0 4px 12px}
.steps li b{color:var(--signal);font-weight:500}
.steps li span{word-break:break-word}
.answer-text{background:var(--bg2);border:1px solid var(--rule);border-radius:12px;padding:20px 22px;font-size:16.5px;line-height:1.65}
.answer-text p:last-child{margin:0}
.thinking{font-family:var(--mono);font-size:13px;color:var(--amber);display:flex;gap:10px;align-items:center}
.thinking i{width:8px;height:8px;border-radius:50%;background:var(--amber);animation:blink 1s steps(2) infinite}
@media (prefers-reduced-motion:reduce){.thinking i{animation:none}}
.err{color:var(--hot)}
.ai-only[hidden]{display:none!important}
.ai-off{font-family:var(--mono);font-size:13px;color:var(--dim);border:1px dashed var(--rule);padding:12px 14px;border-radius:8px}

/* changelog */
.log{counter-reset:n;list-style:none;padding:0;margin:0;display:grid;gap:18px}
.log li{display:grid;grid-template-columns:48px 1fr;gap:16px;border-top:1px solid var(--rule);padding-top:16px}
.log li::before{counter-increment:n;content:counter(n,decimal-leading-zero);font-family:var(--mono);color:var(--dim);font-size:14px;padding-top:4px}
.log .ey{font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--signal);margin-bottom:4px}
.log b{font-size:17px;display:block;margin-bottom:4px;font-family:var(--serif);font-weight:600;letter-spacing:-.01em}
.log p{margin:0;color:var(--dim);font-size:15px}

/* cards */
.card{border:1px solid var(--rule);border-radius:14px;padding:22px;background:var(--bg2)}
.card h3{margin-top:0}
.card.warn{border-color:var(--hot-dk);background:linear-gradient(180deg,rgba(255,92,63,.08),var(--bg2))}
.quote{border-left:3px solid var(--signal);padding:4px 0 4px 18px;margin:18px 0;font-family:var(--serif);font-size:19px;font-style:italic;color:var(--bone);font-variation-settings:"opsz" 48}
.quote cite{display:block;font-style:normal;font-family:var(--mono);font-size:12.5px;color:var(--dim);margin-top:8px}
ul.plain{padding-left:1.2em}
ul.plain li{margin-bottom:.5em}
.files{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.files li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--rule);padding:10px 0;font-size:15px}
.files .mono{color:var(--dim);font-size:12.5px}
pre{background:var(--bg3);border:1px solid var(--rule);border-radius:10px;padding:14px;overflow:auto;font-family:var(--mono);font-size:13px;line-height:1.5}

footer{position:relative;z-index:3;padding:60px var(--gutter) 80px;border-top:1px solid var(--rule);background:var(--bg);color:var(--dim);font-size:14px}
footer .wrap{display:grid;gap:22px}
footer .disc{max-width:70em}
footer nav{display:flex;flex-wrap:wrap;gap:14px}
footer nav a{color:var(--dim)}

/* reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}
@media (max-width:600px){section{padding-left:18px;padding-right:18px}.ask-form{flex-direction:column}.gen dl{grid-template-columns:1fr}.gen dd{text-align:left}h1{font-size:clamp(36px,11vw,60px)}.electrodes{height:80px}}

/* Graham's clip is portrait (406x720): show it whole, never cropped */
.video-box.portrait{aspect-ratio:9/16;width:min(100%,460px);height:auto;max-height:none;margin-inline:auto}
.video-box.portrait video{object-fit:contain;background:#000}
.dance{grid-template-columns:minmax(0,auto) 1fr}
.vbtn-sound{font-size:16px;padding:12px 20px;background:var(--signal);color:#0a0c10;box-shadow:0 0 0 0 rgba(94,200,255,.6);animation:snd-pulse 2.2s ease-out infinite}
.vbtn-sound.is-on{animation:none;background:var(--bone)}
@keyframes snd-pulse{0%{box-shadow:0 0 0 0 rgba(94,200,255,.55)}70%{box-shadow:0 0 0 14px rgba(94,200,255,0)}100%{box-shadow:0 0 0 0 rgba(94,200,255,0)}}
@media (prefers-reduced-motion:reduce){.vbtn-sound{animation:none}}
@media (max-width:900px){.dance{grid-template-columns:1fr}.video-box.portrait{width:100%}}

/* ===================== editorial pass (round 2) =====================
   No cards, pills, chips, glass or shadows. Hairlines, numbered columns, type set over the wave
   with a soft local scrim. One oscilloscope rule runs the whole way down. */
[hidden]{display:none!important}
.table-wrap{position:relative}
*,*::before,*::after{border-radius:0!important;box-shadow:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
.electrodes i{border-radius:0!important}
.panel{background:none;border:0;padding:0;position:relative}
.chapter .panel::before,.story-panel::before{content:"";position:absolute;inset:-28px -32px;background:radial-gradient(60% 60% at 40% 50%,rgba(9,11,16,.78),rgba(9,11,16,.55) 60%,rgba(9,11,16,0) 100%);z-index:-1;pointer-events:none}
.hero-text{position:relative}
.hero-text::before{content:"";position:absolute;inset:-40px -48px;background:radial-gradient(60% 70% at 35% 60%,rgba(9,11,16,.8),rgba(9,11,16,.5) 55%,rgba(9,11,16,0) 100%);z-index:-1}
.photo img{box-shadow:none!important}
.video-box{box-shadow:none!important}
.video-box.portrait{aspect-ratio:9/16;max-height:82vh;width:auto;margin:0 auto;background:#000}
.video-box.portrait video{object-fit:contain;height:100%;width:100%}
.video-ctl.below{position:static;background:none;padding:14px 0 0;gap:18px;justify-content:center}
.vbtn{background:none;color:var(--bone);border:0;border-bottom:1px solid var(--bone);padding:10px 0;min-height:44px;font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:-.01em;animation:none!important}
.vbtn-sound{background:none!important;color:var(--signal)!important;border-bottom-color:var(--signal);font-size:22px}
.vbtn[aria-pressed="true"]{background:none;color:var(--bone)}
.vnote{width:100%;text-align:center;margin:4px 0 0}
.video-fig{display:block}
.dance{display:grid;grid-template-columns:minmax(260px,420px) 1fr;gap:clamp(20px,4vw,56px);align-items:center}
@media (max-width:900px){.dance{grid-template-columns:1fr}.video-box.portrait{max-height:78vh}}
.btn{background:none;color:var(--bone);border:0;border-bottom:1px solid var(--bone);padding:10px 0;font-family:var(--serif);font-size:19px;font-weight:600;min-height:44px}
.btn.ghost{border:0;border-bottom:1px solid var(--signal);color:var(--signal)}
.ctas{gap:28px}
.hero-ask{margin-top:26px;max-width:560px}
.hero-ask label{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin-bottom:8px}
.hero-ask-row{display:flex;border-bottom:1px solid var(--bone)}
.hero-ask-row input{flex:1;min-width:0;background:none;border:0;color:var(--bone);font:inherit;font-size:17px;padding:10px 0}
.hero-ask-row input::placeholder{color:var(--faint)}
.hero-ask-row button{background:none;border:0;color:var(--signal);font-family:var(--serif);font-size:19px;font-weight:600;padding:10px 0 10px 14px;min-height:44px;cursor:pointer}
.clarity{position:absolute;right:var(--gutter);bottom:4vh;margin:0;text-align:right;color:var(--dim);font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.clarity b{display:block;font-family:var(--serif);font-size:28px;letter-spacing:-.02em;color:var(--signal);font-variant-numeric:tabular-nums;text-transform:none;letter-spacing:0}
@media (max-width:700px){.clarity{display:none}}
.stats.figures,.stats{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);margin:32px 0}
.stat{flex:1 1 180px;border:0;border-right:1px solid var(--rule);padding:18px 20px 18px 0;margin-right:20px}
.stat:last-child{border-right:0}
.stat .v{font-size:clamp(30px,3.4vw,46px)}
#model-stats .stat{flex:1 1 150px}
.cols3,.cols2{display:grid;gap:0 clamp(20px,3vw,44px);border-top:1px solid var(--rule)}
.cols3{grid-template-columns:repeat(3,1fr)}.cols2{grid-template-columns:repeat(2,1fr)}
@media (max-width:860px){.cols3,.cols2{grid-template-columns:1fr}}
.col{padding:22px 0 26px;border-bottom:1px solid var(--rule);position:relative}
.numbered{counter-reset:c}
.numbered .col::before{counter-increment:c;content:counter(c,decimal-leading-zero);display:block;font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--signal);margin-bottom:10px}
.card{border:0;border-top:1px solid var(--rule);background:none;padding:22px 0 0}
.card.warn{background:none;border-top:1px solid var(--hot-dk)}
.gen{border:0;border-top:1px solid var(--rule);background:none;padding:18px 0 22px}
.gen[data-status="running"]{background:none;border-top-color:var(--amber)}
.gen[data-status="running"]::after{display:none}
.gen[data-status="baseline"]{border-top-color:var(--signal)}
.gen-cards{gap:0 clamp(16px,3vw,40px)}
.status{border:0;padding:0;font-family:var(--serif);font-variant:small-caps;text-transform:lowercase;font-size:15px;letter-spacing:.04em}
.chip{border:0;border-bottom:1px solid var(--rule);padding:10px 0;min-height:44px;font-family:var(--serif);font-size:17px;color:var(--bone);background:none}
.chips{flex-direction:column;align-items:flex-start;gap:0}
.chip:hover{border-bottom-color:var(--signal);color:var(--signal)}
.ask-form{border-bottom:1px solid var(--bone)}
.ask-form input{background:none;border:0;padding:12px 0;font-size:18px}
.ask-form .btn{padding:10px 0 10px 14px}
@media (max-width:600px){.ask-form{flex-direction:row}}
.answer-text{border:0;border-left:1px solid var(--signal);padding:4px 0 4px 22px;background:none}
.steps li{border-left:1px solid var(--rule);grid-template-columns:1fr;font-family:var(--sans);font-size:14px;color:var(--dim)}
.steps li::before{content:"looked up ";color:var(--faint)}
.footnote{font-family:var(--mono);font-size:12.5px;color:var(--dim);border-top:1px solid var(--rule);padding-top:10px;margin-top:14px}
.explain-btn{border:0;border-bottom:1px solid var(--dim);padding:10px 0;min-height:44px;font-family:var(--serif);font-size:16px;color:var(--bone);background:none}
.explain-btn:hover{border-bottom-color:var(--signal);color:var(--signal)}
.explain-out{background:none;border-left:1px solid var(--signal);padding:10px 0 10px 18px}
.toggle{border:0;background:none;padding:0;gap:18px}
.toggle button{border:0;border-bottom:1px solid transparent;padding:8px 0;min-height:44px;font-family:var(--serif);font-size:17px;color:var(--dim);background:none}
.toggle button[aria-pressed="true"]{background:none;color:var(--signal);border-bottom-color:var(--signal);font-weight:600}
details{border:0;border-top:1px solid var(--rule);background:none;padding:0}
.ai-off{border:0;border-top:1px solid var(--rule);padding:12px 0}
.live-chip{border:0;padding:0}
.menu-btn{background:none;border:0;border-bottom:1px solid var(--bone);padding:8px 0}
nav.chapters a[aria-current="true"],nav.chapters a:hover{background:none;color:var(--signal)}
.tip{border:1px solid var(--rule)}
.latency .bar,.latency .bar i{border-radius:0!important}
pre{border:0;border-left:1px solid var(--rule)}
.kv{grid-template-columns:1fr auto;gap:2px 18px;align-items:baseline;margin:14px 0}
.kv>span:first-child,.kv>span:nth-child(3n+1){grid-column:1}
.kv .v{grid-column:1;text-align:left;font-size:20px;font-family:var(--serif);font-variant-numeric:tabular-nums;margin-bottom:10px}
.kv .explain-btn,.kv .kv-empty{grid-column:2;grid-row:span 2;align-self:center}
/* model stats: don't collide at wide widths */
#model-stats .stat .v{font-size:clamp(26px,2.6vw,40px);white-space:nowrap}
/* oscilloscope rule between sections */
section.solid-bg{border-top:0;position:relative}
section.solid-bg::before{content:"";position:absolute;left:var(--gutter);right:var(--gutter);top:0;height:14px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='14' viewBox='0 0 48 14'%3E%3Cpath d='M0 7 Q6 1 12 7 T24 7 T36 7 T48 7' fill='none' stroke='%235fdcff' stroke-opacity='.55' stroke-width='1'/%3E%3C/svg%3E") repeat-x left center;opacity:.9}
section.solid-bg{padding-top:clamp(56px,7vw,96px)}
/* chapters: content height on phones, no screen-tall gaps */
@media (max-width:760px){.chapter{min-height:0;padding-top:64px;padding-bottom:64px}#hero{min-height:88vh}#born{min-height:88vh}}
/* scorecard stacked on phones */
@media (max-width:700px){
  #score-table thead{display:none}
  #score-table,#score-table tbody,#score-table tr,#score-table td{display:block;width:100%}
  #score-table tr{border-top:1px solid var(--rule);padding:12px 0}
  #score-table tr.fail{border-left:3px solid var(--hot);padding-left:10px}
  #score-table td{border:0;padding:3px 0;text-align:left!important}
  #score-table td[data-l]::before{content:attr(data-l);display:inline-block;width:84px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
  #score-table tr.explain-row td{padding:8px 0 0}
}
/* persistent Ask entry on phones */
.ask-fab{display:none}
@media (max-width:760px){.ask-fab{display:block;position:fixed;right:14px;bottom:14px;z-index:90;background:var(--bg);color:var(--signal);border:1px solid var(--signal);padding:12px 16px;font-family:var(--serif);font-weight:600;font-size:16px;text-decoration:none;min-height:44px}}
h3.sub{font-family:var(--serif);font-size:20px;font-weight:600;margin:26px 0 8px;padding-top:12px;border-top:1px solid var(--rule)}
.ratio{margin:14px 0 6px;font-size:13.5px}
.ratio-row{display:grid;grid-template-columns:48px 1fr auto;gap:10px;align-items:center;margin:4px 0}
.ratio-row.gap{margin-top:14px}
.ratio-row i{display:block;height:8px;width:var(--w);background:var(--dim)}
.ratio-row i.sig{background:var(--signal)}.ratio-row i.goal{background:none;border:1px dashed var(--hot);height:6px}
.researchers summary{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);font-weight:500}
h3.sub.first{border-top:0;padding-top:0;margin-top:8px}
.tech{font-size:11.5px;color:var(--faint);letter-spacing:.02em}.checks li{margin-bottom:.4em}
/* ===== spacing pass: no dead bands; deliberate full-screen pauses only where the wave performs ===== */
section{padding-top:clamp(48px,6vw,88px);padding-bottom:clamp(48px,6vw,88px)}
section.solid-bg{padding-top:clamp(48px,6vw,88px)}
.chapter{min-height:0}
#hero{min-height:92vh;padding-bottom:9vh}
#born,#music,#wall{min-height:100vh}
#tests,#crowd,#model,#dancing{min-height:0}
@media (max-width:760px){.chapter{min-height:0;padding-top:48px;padding-bottom:48px}#hero{min-height:88vh}#born,#music{min-height:82vh}#wall{min-height:0}}
.story{align-items:start}
.why{margin-top:8px}
.gen-cards{margin-top:16px}
hr.rule{margin:32px 0}
/* the wave is the spine: solid sections become translucent so it shows through, text keeps a local scrim */
section.solid-bg{background:rgba(9,11,16,.62)}
section.solid-bg .wrap{position:relative}
section.solid-bg .wrap::before{content:"";position:absolute;inset:-24px -32px;background:radial-gradient(70% 70% at 50% 50%,rgba(9,11,16,.72),rgba(9,11,16,.45) 60%,rgba(9,11,16,0));z-index:-1;pointer-events:none}
footer{background:rgba(9,11,16,.8)}
.wave-key{font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;color:var(--signal);margin:14px 0 0;max-width:34em}
#gl{opacity:1!important}
section#implant{background:rgba(9,11,16,.7)}
.film .video-box{aspect-ratio:16/9;max-width:820px}
/* model chapter: single column now that the electrode widget lives in the implant chapter */
#model .grid.g2{grid-template-columns:1fr;max-width:780px}
#model .latency{max-width:520px}
section#implant{padding-top:clamp(40px,5vw,64px)!important}
#model{padding-bottom:clamp(32px,4vw,56px)}
#music{min-height:80vh}
@media (max-width:900px){#music{min-height:70vh}#born{min-height:85vh}}
section.solid-bg{background:rgba(9,11,16,.42)}
section.solid-bg .wrap::before{background:radial-gradient(70% 70% at 50% 50%,rgba(9,11,16,.78),rgba(9,11,16,.5) 60%,rgba(9,11,16,0))}

/* dad's photo + 'Why this exists' now follows Graham's clip (owner order) */
.after-dance{margin-top:clamp(32px,5vw,64px)}