/* The Build, round 3 · Variant A, Case Board + Brain · shared system (evolved from round 2 Wayne Forensics)
   black glass, steel white, amber the only warm light */
:root{
  --bg:#020304; --ink:#05070a; --glass:#0a0e12; --gun:#161b21; --gun2:#262d36;
  --steel:#6f7b88; --steel2:#9aa6b2; --cold:#d6dee6; --white:#f1f5f8;
  --amber:#FF3300; --lcd:#FF8300; --hot:#FF7826; --amberA:rgba(255,131,0,.55); --amberG:rgba(255,90,20,.35);
  --fault:#FF3B30;
  --mono:'IBM Plex Mono',ui-monospace,monospace; --sans:'Rajdhani',system-ui,sans-serif; --serif:'Playfair Display',Georgia,serif;
  --ease:cubic-bezier(.22,.8,.18,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg);overflow:hidden;color:var(--cold)}
body{font-family:var(--sans);-webkit-font-smoothing:antialiased;cursor:default}
a{color:inherit;text-decoration:none}
#stage{position:absolute;left:50%;top:50%;transform-origin:0 0;overflow:hidden;width:1920px;height:1080px;
  background:
    radial-gradient(1300px 820px at 50% 44%, rgba(38,50,62,.36), transparent 64%),
    radial-gradient(1000px 520px at 50% 115%, rgba(255,51,0,.065), transparent 70%),
    linear-gradient(180deg,#05070a 0%,#020304 62%,#010101 100%);}
#world{position:absolute;inset:0;transform-origin:0 0;will-change:transform,opacity,filter}

/* glass atmosphere */
.fx-rain{position:absolute;inset:0;width:100%;height:100%;z-index:40;pointer-events:none}
.fx-bokeh{position:absolute;inset:0;z-index:0;pointer-events:none;filter:blur(40px);opacity:.6;
  background:radial-gradient(70px 70px at 10% 90%,rgba(255,51,0,.22),transparent 70%),radial-gradient(48px 48px at 15% 87%,rgba(255,51,0,.14),transparent 70%),
  radial-gradient(110px 110px at 90% 12%,rgba(160,190,220,.10),transparent 70%),radial-gradient(80px 80px at 78% 94%,rgba(255,120,38,.10),transparent 70%)}
.fx-scan{position:absolute;inset:0;z-index:41;pointer-events:none;opacity:.32;background:repeating-linear-gradient(0deg, rgba(255,255,255,.012) 0 1px, transparent 1px 3px)}
.fx-vig{position:absolute;inset:0;z-index:42;pointer-events:none;background:radial-gradient(ellipse at 50% 50%, transparent 60%, rgba(0,0,0,.6) 100%)}
.fx-grain{position:absolute;inset:-50%;z-index:43;pointer-events:none;opacity:.065;mix-blend-mode:screen;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-3%)}60%{transform:translate(-2%,-1%)}80%{transform:translate(3%,3%)}100%{transform:translate(0,0)}}
body.paused *{animation-play-state:paused!important}

/* type */
.wordmark{display:block;font-family:var(--serif);font-weight:500;color:var(--amber);font-size:74px;letter-spacing:-.005em;line-height:.92;white-space:nowrap;cursor:pointer;
  text-shadow:0 0 1px rgba(255,51,0,.9),0 0 26px rgba(255,51,0,.42),0 0 70px rgba(255,51,0,.18)}
.eyebrow{font-family:var(--sans);font-weight:500;font-size:13px;letter-spacing:.42em;text-transform:uppercase;color:var(--steel)}
.eyebrow b{color:var(--lcd);font-weight:500}
.mono{font-family:var(--mono)}
.ctx{font-family:var(--mono);font-size:11.5px;color:var(--steel);letter-spacing:.03em;line-height:1.6}
.ctx em{font-style:normal;color:var(--cold)}
.ctx b{font-weight:400;color:var(--lcd)}
.ex{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel);opacity:.85}
.ex:before{content:'';display:inline-block;width:5px;height:5px;border-radius:50%;border:1px solid var(--steel);margin-right:7px;vertical-align:1px}
.amber{color:var(--lcd)} .white{color:var(--white)} .steel{color:var(--steel2)}
.big{font-family:var(--sans);font-weight:300;color:var(--white);line-height:.95;letter-spacing:.005em}
.big.am{color:var(--lcd);text-shadow:0 0 30px rgba(255,131,0,.45)}
.eq{font-family:var(--serif);font-style:italic;font-size:26px;color:var(--white);letter-spacing:.01em}
.eq .s{font-family:var(--mono);font-style:normal;font-size:13px;color:var(--steel);margin-left:14px;letter-spacing:.06em}
.tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--steel2)}
.tag i{width:6px;height:6px;border-radius:50%;background:var(--steel2)}
.tag.live i{background:var(--lcd);box-shadow:0 0 10px var(--lcd);animation:pulse 2.4s ease-in-out infinite}
.tag.bench i{background:transparent;border:1px solid var(--lcd)}
.tag.next i{background:transparent;border:1px dashed var(--steel2)}
@keyframes pulse{50%{opacity:.25}}
.hair{height:1px;background:linear-gradient(90deg,rgba(154,166,178,.32),rgba(154,166,178,0))}
.hairc{height:1px;background:linear-gradient(90deg,transparent,rgba(154,166,178,.26),transparent)}
.pool{position:absolute;pointer-events:none;border-radius:50%;background:radial-gradient(closest-side,rgba(120,140,160,.10),transparent)}
.pool.am{background:radial-gradient(closest-side,rgba(255,110,30,.12),transparent)}

/* chrome shared by every section */
.chrome{position:absolute;left:64px;right:64px;top:34px;display:flex;justify-content:space-between;align-items:flex-start;z-index:30}
.chrome .home{display:flex;flex-direction:row;align-items:baseline;gap:40px}
.backlink{display:inline-flex;align-items:center;gap:12px;font-family:var(--mono);font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--steel2);cursor:pointer;transition:color .3s}
.backlink .k{font-size:10px;letter-spacing:.1em;color:var(--steel);border-bottom:1px solid rgba(154,166,178,.35);padding-bottom:1px}
.backlink:hover{color:var(--white)}
.backlink svg{width:22px;height:10px;stroke:currentColor;fill:none;stroke-width:1.2;transition:transform .4s var(--ease)}
.backlink:hover svg{transform:translateX(-4px)}
.chrome .file{text-align:right}
.chrome .file .no{font-family:var(--mono);font-size:11px;letter-spacing:.32em;color:var(--steel);text-transform:uppercase}
.chrome .file .no b{color:var(--lcd);font-weight:400}
.chrome .file .clock{font-family:var(--mono);font-weight:300;font-size:22px;color:var(--white);letter-spacing:.06em;margin-top:6px}
.chrome .file .keys{margin-top:10px;justify-content:flex-end}
.chrome .file .clock span{color:var(--steel)}
.keys{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--steel);opacity:.7;display:flex;gap:16px}
.keys b{color:var(--steel2);font-weight:400}
.ctas{position:absolute;right:64px;bottom:24px;z-index:39;display:flex;gap:28px;align-items:baseline}

/* ---------- the section rail (Jarvis): HUD and 1 to 9 along the bottom, current file in amber ---------- */
.srail{position:absolute;left:64px;bottom:22px;z-index:39;display:flex;align-items:flex-end;padding-top:0}
.srail:before{content:'';position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,rgba(154,166,178,.34),rgba(154,166,178,.14) 70%,rgba(154,166,178,0))}
.srail a{position:relative;display:flex;align-items:baseline;gap:7px;padding:13px 12px 0 0;margin-right:10px;cursor:pointer;white-space:nowrap}
.srail a:before{content:'';position:absolute;left:0;top:-3px;width:1px;height:7px;background:rgba(154,166,178,.5);transition:background .3s,height .3s}
.srail a .n{font-family:var(--mono);font-size:10px;color:var(--steel);letter-spacing:.08em;transition:color .3s}
.srail a .t{font-family:var(--sans);font-weight:500;font-size:12px;letter-spacing:.17em;text-transform:uppercase;color:var(--steel);transition:color .3s,text-shadow .3s}
.srail a:hover .t{color:var(--white)} .srail a:hover .n{color:var(--steel2)} .srail a:hover:before{background:var(--cold);height:9px}
.srail a.on{cursor:default}
.srail a.on .n{color:var(--lcd)}
.srail a.on .t{color:var(--white);text-shadow:0 0 14px rgba(255,255,255,.18)}
.srail a.on:before{background:var(--lcd);box-shadow:0 0 8px var(--lcd);height:9px;top:-4px}
.srail .cur{position:absolute;top:-1px;height:2px;left:0;width:0;background:linear-gradient(90deg,var(--lcd),rgba(255,131,0,.15));box-shadow:0 0 12px rgba(255,131,0,.55);transition:left .6s var(--ease),width .6s var(--ease);pointer-events:none}
.srail a.hint .t{color:var(--cold)}
.cta{font-family:var(--sans);font-weight:500;font-size:13px;letter-spacing:.3em;text-transform:uppercase;color:var(--lcd);text-shadow:0 0 14px rgba(255,90,20,.5);border-bottom:1px solid rgba(255,131,0,.45);padding-bottom:2px;cursor:pointer}
.cta2{font-family:var(--sans);font-weight:500;font-size:13px;letter-spacing:.3em;text-transform:uppercase;color:var(--steel2);cursor:pointer}
.partner{font-family:var(--mono);font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--steel);cursor:pointer}
.partner b{color:var(--lcd);font-weight:400}
#pausedFlag{position:absolute;left:50%;top:12px;transform:translateX(-50%);z-index:60;font-family:var(--mono);font-size:10px;letter-spacing:.4em;color:var(--lcd);opacity:0;transition:opacity .3s;text-transform:uppercase}
body.paused #pausedFlag{opacity:.9}

/* section layout: rail + pane */
.rail{position:absolute;left:64px;top:156px;width:470px;bottom:96px;z-index:20;display:flex;flex-direction:column}
.rail .fileno{font-family:var(--mono);font-size:11px;letter-spacing:.34em;color:var(--steel);text-transform:uppercase}
.rail .fileno b{color:var(--lcd);font-weight:400}
.rail h1{font-family:var(--sans);font-weight:300;font-size:58px;line-height:.98;color:var(--white);letter-spacing:.01em;margin-top:16px}
.rail h1 i{font-style:normal;color:var(--lcd);text-shadow:0 0 30px rgba(255,131,0,.35)}
.rail .lede{font-family:var(--sans);font-weight:400;font-size:19px;line-height:1.38;color:var(--steel2);margin-top:18px;letter-spacing:.015em;max-width:440px}
.steps{margin-top:34px;display:flex;flex-direction:column;gap:2px;position:relative}
.steps .st{display:grid;grid-template-columns:44px 1fr;align-items:baseline;padding:9px 0;cursor:pointer;position:relative;transition:opacity .4s}
.steps .st .n{font-family:var(--mono);font-size:11px;color:var(--steel);letter-spacing:.12em}
.steps .st .t{font-family:var(--sans);font-weight:500;font-size:16px;letter-spacing:.16em;text-transform:uppercase;color:var(--steel);transition:color .4s}
.steps .st:hover .t{color:var(--cold)}
.steps .st.on .t{color:var(--white)}
.steps .st.on .n{color:var(--lcd)}
.steps .st .bar{position:absolute;left:44px;right:0;bottom:2px;height:1px;background:rgba(154,166,178,.12);overflow:hidden}
.steps .st .bar i{position:absolute;left:0;top:0;bottom:0;width:0;background:linear-gradient(90deg,rgba(255,131,0,.2),var(--lcd))}
.rail .foot{margin-top:auto}
.pane{position:absolute;left:600px;right:64px;top:150px;bottom:96px;z-index:20}
.step{position:absolute;inset:0;opacity:0;visibility:hidden;transform:translateY(14px) scale(.985);filter:blur(6px);transition:opacity .7s var(--ease),transform .9s var(--ease),filter .7s var(--ease),visibility 0s .7s}
.step.on{opacity:1;visibility:visible;transform:none;filter:none;transition:opacity .8s var(--ease) .12s,transform 1s var(--ease) .12s,filter .8s var(--ease) .12s,visibility 0s}
.step .head{position:absolute;left:0;top:0;right:0}
.step .head .k{font-family:var(--mono);font-size:11px;letter-spacing:.3em;color:var(--steel);text-transform:uppercase}
.step .head .k b{color:var(--lcd);font-weight:400}
.step .head h2{font-family:var(--sans);font-weight:300;font-size:40px;line-height:1.05;color:var(--white);margin-top:10px;letter-spacing:.01em;max-width:1100px}
.step .head h2 i{font-style:normal;color:var(--lcd)}
.step .head p{font-family:var(--sans);font-size:18px;line-height:1.4;color:var(--steel2);margin-top:10px;max-width:980px;letter-spacing:.015em}
canvas.cv{position:absolute;display:block}
.reveal>*{opacity:0;transform:translateY(8px);transition:opacity .7s var(--ease),transform .8s var(--ease)}
.step.on .reveal>*{opacity:1;transform:none}
.step.on .reveal>*:nth-child(2){transition-delay:.15s}.step.on .reveal>*:nth-child(3){transition-delay:.3s}.step.on .reveal>*:nth-child(4){transition-delay:.45s}
.step.on .reveal>*:nth-child(5){transition-delay:.6s}.step.on .reveal>*:nth-child(6){transition-delay:.75s}.step.on .reveal>*:nth-child(7){transition-delay:.9s}.step.on .reveal>*:nth-child(8){transition-delay:1.05s}
.step.on .reveal>*:nth-child(n+9){transition-delay:1.2s}
.abs{position:absolute}

/* shared: row of facts (number + context), no boxes */
.facts{display:flex;gap:56px}
.fact .v{font-family:var(--sans);font-weight:300;font-size:46px;line-height:1;color:var(--white)}
.fact .v small{font-size:18px;color:var(--steel2);margin-left:4px;letter-spacing:.1em}
.fact .v.am{color:var(--lcd);text-shadow:0 0 24px rgba(255,131,0,.4)}
.fact .l{font-family:var(--mono);font-size:11px;color:var(--steel);margin-top:8px;line-height:1.5;max-width:230px}

/* bytes */
.bytes{font-family:var(--mono);font-size:22px;letter-spacing:.06em;color:var(--steel2);line-height:1.6;word-spacing:.18em}
.bytes span{transition:color .3s,text-shadow .3s}
.bytes .on{color:var(--white)} .bytes .hot{color:var(--lcd);text-shadow:0 0 12px rgba(255,131,0,.6)} .bytes .bad{color:var(--fault);text-shadow:0 0 12px rgba(255,59,48,.5)}

/* list rows without boxes */
.rows .r{display:grid;align-items:baseline;padding:10px 0;position:relative}
.rows .r:after{content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,rgba(154,166,178,.18),rgba(154,166,178,0) 80%)}

/* ======= portrait (1080 x 1920) ======= */
.P .chrome{left:56px;right:56px;top:44px}
.P .chrome .home{flex-direction:column;gap:14px}
.P .chrome .file .keys{display:none}
.P .wordmark{font-size:70px}
.P .srail{left:56px;bottom:26px}
.P .srail a{margin-right:6px;padding-right:12px}
.P .srail a .t{display:none}
.P .srail a.on .t{display:inline}
.P .ctas{left:56px;right:auto;bottom:74px}
.P .rail{left:56px;right:56px;width:auto;top:236px;bottom:auto;height:auto}
.P .rail h1{font-size:54px;max-width:900px}
.P .rail .lede{font-size:18px;max-width:none}
.P .rail .foot{display:none}
.P .steps{flex-direction:row;flex-wrap:wrap;gap:0 24px;margin-top:22px}
.P .steps .st{grid-template-columns:30px auto;padding:6px 0}
.P .steps .st .t{font-size:13px;letter-spacing:.12em}
.P .steps .st .bar{left:30px}
.P .pane{left:56px;right:56px;top:640px;bottom:130px}
.P .step .head h2{font-size:34px}
.P .step .head p{font-size:16.5px}

.P .facts{gap:36px;flex-wrap:wrap}

/* step visual areas */
.vis{position:absolute;left:0;right:0;top:186px;bottom:0}
.vis canvas.cv,.fill{position:absolute;left:0;top:0;width:100%;height:100%}
.P .vis{top:200px}
.split{position:absolute;left:0;right:0;top:186px;bottom:0;display:grid;grid-template-columns:1fr 1fr;gap:64px}
.split.w3{grid-template-columns:1.25fr 1fr}
.P .split{grid-template-columns:1fr!important;grid-template-rows:auto;gap:30px;top:200px;align-content:start}
.split>div{position:relative;min-height:0}
.lbl{font-family:var(--mono);font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--steel)}
.lbl b{color:var(--lcd);font-weight:400}
.say{font-family:var(--sans);font-size:17px;line-height:1.42;color:var(--cold);letter-spacing:.015em}
.say i{font-style:normal;color:var(--lcd)}
.note{font-family:var(--mono);font-size:10.5px;color:var(--steel);line-height:1.55;letter-spacing:.02em}
.sym{font-family:var(--serif);font-style:italic;color:var(--white)}
.chip{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--steel2)}
.foot .ctx{max-width:440px}

/* E39 Touring mount (shared model from ../shared/e39-touring) */
.e39-mount{position:relative}
.e39-mount.pending{min-height:120px}
.e39-mount.pending:after{content:'E39 Touring · line drawing mounts here';position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);white-space:nowrap;font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--steel);opacity:.55}
.rail .e39-mount{height:auto!important;margin-top:22px;margin-left:-8px;margin-right:-8px}
.rail.t1 .steps{margin-top:24px}.rail.t1 .steps .st{padding:7px 0}.rail.t1 .e39-mount{margin-top:12px}
.rail.t2 .lede{font-size:17px;margin-top:12px}.rail.t2 h1{font-size:52px}
.rail.t3 .steps .st{padding:5px 0}.rail.t3 .e39-mount{margin-left:30px;margin-right:30px}
.rail .e39-cap{font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--steel);margin-top:8px;text-align:center}
.P .rail .e39-mount{display:none}

/* brain cluster labels (brain.js, adapted from Jarvis core3d) */
.coretags{position:absolute;inset:0;pointer-events:none}
.ctag{position:absolute;left:0;top:0;white-space:nowrap;will-change:transform;transition:opacity .5s,color .4s}
.ctag.eng{font-family:var(--sans);font-weight:500;font-size:12px;letter-spacing:.32em;color:var(--cold);text-transform:uppercase}
.ctag.eng small{display:block;font-family:var(--mono);font-weight:400;font-size:9px;letter-spacing:.14em;color:var(--steel);text-transform:none;margin-top:1px}
.ctag.eng.hans{color:var(--lcd);text-shadow:0 0 12px rgba(255,131,0,.55)}
.ctag.eng.on{color:var(--white);text-shadow:0 0 14px rgba(241,245,248,.6)}
.ctag.eng.hans.on{color:#ffd0a0;text-shadow:0 0 18px var(--lcd)}
.ctag.src{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;color:var(--steel);text-align:center;text-transform:none}
.ctag.src .sn{display:block;font-family:var(--sans);font-weight:300;font-size:21px;letter-spacing:.04em;color:var(--steel2);line-height:1.05}
.ctag.src.on{color:var(--lcd)}
.ctag.src.on .sn{color:var(--white);text-shadow:0 0 16px var(--lcd)}
.glcanvas{-webkit-mask-image:radial-gradient(closest-side,#000 74%,transparent 100%);mask-image:radial-gradient(closest-side,#000 74%,transparent 100%)}
#coreHost .glcanvas{-webkit-mask-image:radial-gradient(ellipse 50% 50% at 50% 50%,#000 70%,transparent 100%);mask-image:radial-gradient(ellipse 50% 50% at 50% 50%,#000 70%,transparent 100%)}

/* phone-light mode (TB.lite): no layer promotion, grain at screen size */
.lite #world{will-change:auto}
.lite .fx-grain{inset:0;animation:none}

/* pin the page to the screen: the unscaled stage box must never widen a phone's layout viewport (it did, to 612px, and the board was cropped) */
body{position:fixed;inset:0;overflow:hidden}

/* iOS text autosizing inflated the small type inside the zoomed stage and it spilled over everything */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}

/* screen-shaped pages in landscape sit inside a margin: the page behind carries the same night, so the stage has no visible edge */
html.adapt,html.adapt body{background:radial-gradient(70% 80% at 50% 46%, rgba(38,50,62,.30), transparent 70%),linear-gradient(180deg,#05070a 0%,#020304 62%,#010101 100%)}
html.adapt #stage{background:transparent}
html.adapt .fx-vig{background:radial-gradient(ellipse at 50% 50%, transparent 70%, rgba(0,0,0,.25) 100%)}
html.adapt .fx-scan,html.adapt .fx-grain,html.adapt .fx-vig{display:none}