:root{--bg:#0b0f0e;--card:#121816;--ink:#eef2ee;--ink2:#a9b4ae;--gr:#6fbd44;--go:#e3c27c;--line:rgba(255,255,255,.12)}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--ink);font-family:Figtree,system-ui,sans-serif;overflow-x:hidden}
a{color:inherit}
.top{display:flex;align-items:center;gap:14px;padding:14px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#0b0f0eee;backdrop-filter:blur(8px);z-index:5;min-width:0}
.crumbs{display:flex;gap:8px;font-size:14px;color:var(--ink2);min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.crumbs a{text-decoration:none}
main{max-width:1240px;margin:0 auto;padding:0 16px 40px}
.intro{padding:34px 0 10px}.eb{color:var(--gr);text-transform:uppercase;letter-spacing:.12em;font-size:12px;margin:0}
h1{font-size:clamp(2rem,5.4vw,3.6rem);line-height:1.04;margin:.25em 0 .3em;font-weight:600}h1 b{color:var(--gr);font-weight:600}
.lede{color:var(--ink2);max-width:680px;font-size:1.1rem;line-height:1.55;margin:0}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0 16px}
.b{appearance:none;border:1px solid var(--line);background:#ffffff0b;color:var(--ink);border-radius:99px;min-height:44px;padding:0 16px;font:500 15px Figtree,sans-serif;cursor:pointer;display:inline-flex;align-items:center;text-decoration:none;max-width:100%}
.b[aria-pressed=true],.b[aria-selected=true]{background:#fff;color:#111}.b.pri{background:var(--gr);color:#0b120a;border-color:var(--gr);font-weight:600}
.b:focus-visible,.hs:focus-visible,.touch:focus-visible{outline:2px solid var(--go);outline-offset:2px}
.stage{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px;align-items:start}
.dev{position:relative;perspective:1400px;transform-style:preserve-3d;padding:30px 10px 40px;min-width:0}
.layer{position:relative;border-radius:14px;transition:transform .7s cubic-bezier(.2,.7,.2,1),box-shadow .3s,border-color .3s,opacity .3s;border:1px solid var(--line);background:#141b19}
.layer span{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink2)}
.sensor{height:34px;width:42%;margin:0 auto -1px;border-radius:12px 12px 4px 4px;background:linear-gradient(#1d2523,#121816)}
.sensor::before{content:"";position:absolute;left:18px;top:50%;width:12px;height:12px;border-radius:50%;transform:translateY(-50%);background:radial-gradient(#3b4,#062);box-shadow:0 0 10px #6fbd44aa}
.screen{aspect-ratio:16/9;background:#000;border:10px solid #1a201e;border-radius:16px;overflow:visible}
.screen video{width:100%;height:100%;object-fit:cover;display:block;border-radius:6px;background:#000}
.cpu{height:64px;width:70%;margin:-2px auto 0;border-radius:4px 4px 12px 12px;background:repeating-linear-gradient(90deg,#141b19 0 14px,#18201e 14px 16px)}
.net{height:30px;width:40%;margin:10px auto 0;background:#101614}
.net::after{content:"";position:absolute;left:-40%;right:-40%;top:50%;height:2px;background:linear-gradient(90deg,transparent,#6fbd4466,transparent)}
.dev.ex .sensor{transform:translateY(-26px) translateZ(60px) rotateX(8deg)}.dev.ex .screen{transform:translateZ(0)}.dev.ex .cpu{transform:translateY(26px) translateZ(-60px) rotateX(-8deg)}.dev.ex .net{transform:translateY(46px) translateZ(-110px)}
.layer.hi{border-color:var(--gr);box-shadow:0 0 0 2px #6fbd4455,0 0 40px #6fbd4433}
.dev.fail .sensor{opacity:.35;border-color:#f0b35c}.dev.fail .net{opacity:.35;border-color:#f0b35c}
.touch{position:absolute;inset:0;border:0;border-radius:6px;background:radial-gradient(ellipse at center,#0008,#000c);color:#fff;display:grid;place-content:center;gap:6px;cursor:pointer;font:inherit;text-align:center}
.touch i{width:64px;height:64px;margin:0 auto 6px;border-radius:50%;border:2px solid var(--gr);box-shadow:0 0 0 0 #6fbd4488;animation:pulse 1.8s infinite}
.touch b{font-size:1.25rem}.touch small{color:var(--ink2)}.touch[hidden]{display:none}
@keyframes pulse{70%{box-shadow:0 0 0 22px #6fbd4400}100%{box-shadow:0 0 0 0 #6fbd4400}}
@media (prefers-reduced-motion:reduce){.touch i{animation:none}.layer{transition:none}}
.hs{position:absolute;width:40px;height:40px;margin:-20px 0 0 -20px;border-radius:50%;border:2px solid #fff;background:var(--gr);color:#0b120a;font:700 15px Figtree,sans-serif;cursor:pointer;display:none;z-index:2}
.on .hs{display:block}
.side{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;min-width:0}
.meta{margin:0;color:var(--gr);font-size:12px;letter-spacing:.1em;text-transform:uppercase}.side h2{font-size:1.7rem;margin:.2em 0}.prom{color:var(--ink2);margin:0 0 12px;line-height:1.5}
.ctl{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 12px}
.flow{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:4px;counter-reset:f}
.flow li{display:grid;grid-template-columns:26px minmax(0,1fr);gap:8px;padding:6px 8px;border-radius:10px;opacity:.45;transition:opacity .2s,background .2s;font-size:14px;line-height:1.35}
.flow li::before{counter-increment:f;content:counter(f,decimal-leading-zero);color:var(--ink2);font-variant-numeric:tabular-nums}
.flow li.on{opacity:1;background:#6fbd441f}.flow li.done{opacity:.85}
.flow b{display:block;font-weight:600}
.info{font-size:14px;line-height:1.5;color:var(--ink2)}.info b{color:var(--ink)}.info:empty{display:none}
.cap{min-height:1.2em;color:#fff;font-size:15px;line-height:1.45;margin:12px 0}
.foot{color:var(--ink2);font-size:13px;margin-top:22px;line-height:1.5}
@media (max-width:900px){.stage{grid-template-columns:minmax(0,1fr)}.layer span{display:none}}