/* PIOS site, using the Wavefunction visual language from BareMetalJSTools.
   Theme palette: MIT, Copyright (c) 2026 Will Eastbury.
   Bundled fonts are SIL Open Font License. */
@font-face{font-family:WavefunctionSans;src:url("assets/fonts/Wavefunction-Sans.woff2") format("woff2");font-display:swap}
@font-face{font-family:WavefunctionSerif;src:url("assets/fonts/Wavefunction-Serif.woff2") format("woff2");font-display:swap}
@font-face{font-family:WavefunctionCurly;src:url("assets/fonts/Wavefunction-Curly.woff2") format("woff2");font-display:swap}
@font-face{font-family:BareMetalMono;src:url("assets/fonts/BareMetalMono.woff2") format("woff2");font-display:swap}

:root{
  --bg:#0f172a;--bg-deep:#020617;--surface:#1e293b;--surface-2:#273449;
  --text:#f1f5f9;--muted:#94a3b8;--line:#334155;--primary:#6366f1;
  --primary-2:#818cf8;--cyan:#06b6d4;--green:#10b981;--amber:#f59e0b;
  --danger:#ef4444;--shadow:0 2px 6px rgba(0,0,0,.3),0 20px 60px rgba(0,0,0,.45);
  --sans:WavefunctionSans,Inter,system-ui,sans-serif;
  --serif:WavefunctionSerif,Georgia,serif;
  --mono:BareMetalMono,SFMono-Regular,Consolas,monospace;
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--text);font:400 17px/1.65 var(--sans);overflow-x:hidden}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
code{font:400 .88em var(--mono);color:#a5f3fc}
.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
.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-link{position:fixed;top:-80px;left:16px;z-index:100;padding:10px 16px;background:#fff;color:#020617;border-radius:0 0 8px 8px}
.skip-link:focus{top:0}

.site-header{height:72px;position:fixed;inset:0 0 auto;z-index:50;display:flex;align-items:center;padding:0 max(20px,calc((100vw - var(--max))/2));background:rgba(2,6,23,.78);border-bottom:1px solid rgba(148,163,184,.12);backdrop-filter:blur(18px)}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.12em;text-decoration:none}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid rgba(129,140,248,.7);border-radius:9px;background:linear-gradient(135deg,#6366f1,#06b6d4);box-shadow:0 0 28px rgba(99,102,241,.4);font:700 19px var(--serif)}
nav{margin-left:auto;display:flex;align-items:center;gap:28px}
nav a{text-decoration:none;color:#cbd5e1;font-size:.9rem;transition:color .2s}
nav a:hover,nav a.active{color:#fff}
.nav-github{padding:8px 14px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.03)}
.nav-toggle{display:none;margin-left:auto;border:0;background:none;padding:10px}
.nav-toggle span:not(.sr-only){display:block;width:24px;height:2px;margin:5px;background:#fff}

.hero{position:relative;min-height:780px;padding:150px 0 90px;background:radial-gradient(circle at 78% 16%,rgba(99,102,241,.15),transparent 32%),linear-gradient(180deg,var(--bg-deep),var(--bg));overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(148,163,184,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.035) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent 78%)}
.hero-glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.16}
.hero-glow-a{width:480px;height:480px;background:#6366f1;right:-100px;top:50px}
.hero-glow-b{width:300px;height:300px;background:#06b6d4;left:-120px;bottom:20px}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:.9fr 1.25fr;gap:68px;align-items:center}
.hero-grid>*{min-width:0}
.eyebrow{margin:0 0 18px;color:#a5b4fc;font:700 .76rem/1.2 var(--mono);letter-spacing:.15em;text-transform:uppercase}
.pulse{display:inline-block;width:7px;height:7px;margin-right:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(16,185,129,.12)}
h1,h2,h3,p{margin-top:0}
h1{font:600 clamp(3.5rem,7vw,6.8rem)/.91 var(--serif);letter-spacing:-.055em;margin-bottom:28px}
h1 span{color:transparent;background:linear-gradient(100deg,#a5b4fc,#67e8f9);background-clip:text}
.hero-lede{max-width:620px;color:#cbd5e1;font-size:1.13rem}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 19px;border:1px solid transparent;border-radius:9px;font-weight:700;text-decoration:none;transition:transform .18s,box-shadow .18s,background .18s}
.button:hover{transform:translateY(-2px)}
.button-primary{background:linear-gradient(135deg,var(--primary),#4f46e5);box-shadow:0 10px 32px rgba(99,102,241,.28)}
.button-ghost{border-color:var(--line);background:rgba(255,255,255,.025)}
.button-light{background:#fff;color:#111827}
.button-outline-light{border-color:rgba(255,255,255,.45)}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);margin:52px 0 0;padding-top:25px;border-top:1px solid var(--line)}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats dt{font:700 1.4rem var(--mono);color:#fff}
.hero-stats dd{margin:3px 0 0;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em}
.hero-visual,.terminal-chrome{min-width:0;max-width:100%}
.terminal-chrome{padding:8px;border:1px solid rgba(99,102,241,.45);border-radius:14px;background:#020617;box-shadow:var(--shadow),0 0 80px rgba(99,102,241,.12);transform:perspective(1500px) rotateY(-2deg)}
.terminal-bar{height:32px;display:flex;align-items:center;gap:6px;padding:0 8px;color:#64748b;font:600 .6rem var(--mono);letter-spacing:.1em}
.terminal-bar span{width:8px;height:8px;border-radius:50%;background:#475569}
.terminal-bar span:first-child{background:#ef4444}.terminal-bar span:nth-child(2){background:#f59e0b}.terminal-bar span:nth-child(3){background:#10b981}
.terminal-bar strong{margin-left:auto}
.terminal-chrome img{border:1px solid #164e63;border-radius:5px}
.visual-caption{text-align:center;margin:13px 0 0;color:#64748b;font:.68rem var(--mono);text-transform:uppercase;letter-spacing:.08em}
.visual-caption span{color:#22d3ee}

.proof-strip{background:#111b31;border-block:1px solid var(--line)}
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.proof-grid div{padding:24px 20px;border-right:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;column-gap:12px}
.proof-grid div:last-child{border:0}
.proof-grid span{grid-row:1/3;color:#4f46e5;font:700 .72rem var(--mono)}
.proof-grid strong{font-size:.88rem}.proof-grid small{color:var(--muted)}

.section{padding:110px 0}
.section-alt{background:var(--bg-deep);border-block:1px solid rgba(148,163,184,.1)}
.section-heading{max-width:760px;margin-bottom:54px}
.section-heading h2,.closing h2{font:600 clamp(2.5rem,5vw,4.7rem)/1 var(--serif);letter-spacing:-.04em;margin-bottom:22px}
.section-heading>p:last-child{color:var(--muted);font-size:1.08rem}
.fabric{display:grid;grid-template-columns:220px 120px 240px 1fr;align-items:center;gap:22px}
.fabric-node{padding:22px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(145deg,var(--surface),rgba(30,41,59,.55));box-shadow:var(--shadow)}
.fabric-node h3{margin-bottom:4px}.fabric-node p{margin-bottom:14px;color:var(--muted);font-size:.85rem}
.node-kicker,.gpu span{color:#818cf8;font:700 .64rem var(--mono);letter-spacing:.13em}
.fabric-link{display:flex;align-items:center;gap:8px;color:var(--muted);font:600 .64rem var(--mono)}
.fabric-link span{height:1px;flex:1;background:linear-gradient(90deg,var(--primary),var(--cyan));box-shadow:0 0 8px var(--primary)}
.fabric-switch{border-color:rgba(6,182,212,.45)}
.gpu-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.gpu{padding:15px;box-shadow:none}.gpu strong,.gpu small{display:block}.gpu strong{font-size:.82rem;margin:4px 0}.gpu small{color:var(--green);font-size:.68rem}.gpu-alt small{color:var(--amber)}
.callout{display:flex;justify-content:space-between;gap:30px;align-items:center;margin-top:42px;padding:25px 28px;border-left:3px solid var(--cyan);background:rgba(6,182,212,.06)}
.callout p{max-width:850px;margin:0;color:#cbd5e1}.callout a{white-space:nowrap;color:#67e8f9;text-decoration:none;font-weight:700}

.architecture-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:42px}
.core-card{display:flex;gap:17px;padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.core-card h3{font-size:1rem;margin-bottom:7px}.core-card p{margin:0;color:var(--muted);font-size:.82rem}
.core-number{font:700 2.1rem var(--mono);color:#64748b}.core-zero{border-color:rgba(99,102,241,.55);background:linear-gradient(145deg,rgba(99,102,241,.17),var(--surface))}.core-zero .core-number{color:#a5b4fc}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-grid article{padding:28px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(30,41,59,.32),transparent)}
.feature-icon{font:400 2rem var(--serif);color:#67e8f9}.feature-grid h3{margin:16px 0 9px}.feature-grid p{color:var(--muted);font-size:.88rem}

.platform-table{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
table{width:100%;border-collapse:collapse;min-width:800px}
th,td{text-align:left;padding:18px 20px;border-bottom:1px solid var(--line)}
th{color:#94a3b8;font:700 .68rem var(--mono);letter-spacing:.1em;text-transform:uppercase}
td{font-size:.87rem;color:#cbd5e1}tbody tr:last-child td{border:0}tbody tr:hover{background:rgba(148,163,184,.04)}
.status{display:inline-block;padding:4px 8px;border-radius:999px;font:700 .64rem var(--mono);text-transform:uppercase}
.status.live{color:#6ee7b7;background:rgba(16,185,129,.12)}.status.supported{color:#67e8f9;background:rgba(6,182,212,.12)}.status.building{color:#fcd34d;background:rgba(245,158,11,.12)}

.docs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.docs-grid a{position:relative;min-height:235px;padding:28px;border:1px solid var(--line);border-radius:12px;background:var(--surface);text-decoration:none;transition:transform .18s,border-color .18s}
.docs-grid a:hover{transform:translateY(-3px);border-color:#6366f1}
.docs-grid span{position:absolute;right:22px;top:18px;color:#475569;font:700 2.2rem var(--mono)}
.docs-grid h3{margin-top:50px}.docs-grid p{color:var(--muted);font-size:.88rem}.docs-grid b{color:#a5b4fc;font-size:.78rem}

.roadmap-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:start}
.roadmap-list{list-style:none;margin:0;padding:0}
.roadmap-list li{position:relative;display:flex;gap:20px;padding:0 0 35px}
.roadmap-list li::before{content:"";position:absolute;left:7px;top:17px;bottom:0;width:1px;background:var(--line)}
.roadmap-list li:last-child::before{display:none}
.roadmap-list li>span{z-index:1;width:15px;height:15px;border:2px solid #64748b;border-radius:50%;background:var(--bg)}
.roadmap-list small,.roadmap-list strong{display:block}.roadmap-list small{color:#64748b;font:700 .61rem var(--mono);letter-spacing:.12em}.roadmap-list strong{margin-top:5px}
.roadmap-list .done>span{border-color:var(--green);background:var(--green)}.roadmap-list .done small{color:#6ee7b7}
.roadmap-list .active>span{border-color:#818cf8;box-shadow:0 0 0 6px rgba(99,102,241,.15)}.roadmap-list .active small{color:#a5b4fc}

.closing{padding:100px 0;text-align:center;background:linear-gradient(135deg,#4338ca,#0891b2);position:relative;overflow:hidden}
.closing::before{content:"ψ";position:absolute;font:500 25rem var(--serif);color:rgba(255,255,255,.05);left:5%;top:-150px}
.closing .container{position:relative}.script{font:400 2rem WavefunctionCurly,cursive;margin-bottom:10px}.closing h2{margin-bottom:30px}.closing .hero-actions{justify-content:center}
footer{padding:38px 0;background:var(--bg-deep);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:30px;align-items:center}
.footer-grid strong{letter-spacing:.15em}.footer-grid p{margin:2px 0;color:#64748b;font-size:.78rem}.footer-grid div:nth-child(2){display:flex;gap:20px}.footer-grid a{color:#94a3b8;text-decoration:none;font-size:.78rem}.footer-grid>p{text-align:right}

@media(max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:50px}.hero-copy{max-width:760px}.fabric{grid-template-columns:1fr}.fabric-link{height:45px;flex-direction:column}.fabric-link span{width:1px}.architecture-grid{grid-template-columns:repeat(2,1fr)}.roadmap-grid{gap:50px}
}
@media(max-width:760px){
  body{font-size:16px}.container{width:min(100% - 28px,var(--max))}
  .nav-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center}.site-header nav{display:none;position:absolute;top:72px;left:0;right:0;margin:0;padding:18px 24px;background:#020617;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:4px}.site-header nav.open{display:flex}.site-header nav a{padding:10px}
  .hero{padding-top:120px}.hero-lede{overflow-wrap:anywhere}.hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.terminal-chrome{transform:none;width:100%}
  .proof-grid{grid-template-columns:repeat(2,1fr)}.proof-grid div:nth-child(2){border-right:0}.proof-grid div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .section{padding:75px 0}.gpu-grid,.feature-grid,.docs-grid,.roadmap-grid{grid-template-columns:1fr}.architecture-grid{grid-template-columns:1fr}
  .callout{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr;text-align:center}.footer-grid div:nth-child(2){justify-content:center}.footer-grid>p{text-align:center}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.docs-grid a{transition:none}}