/* Hub: the five demos and what a site can do. Tokens first, both themes. */
:root{
  --hal:#b79cff; --neo:#ff3d8b; --kep:#ff7a33; --kin:#f5b800; --str:#38c6ff;
  --spectrum:linear-gradient(90deg,#c9b6ff,#ff3d8b 30%,#ff7a33 55%,#ffd24a 75%,#4fd0ff);
  --display:'Unbounded',system-ui,sans-serif; --body:'Manrope',system-ui,sans-serif;
  --gut:clamp(16px,4vw,48px); --max:1180px;
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#070914; --bg2:#0c1024; --ink:#eef0ff; --muted:#a7aecf; --line:rgba(190,200,255,.16);
  --panel:rgba(20,24,50,.55); --btn-ink:#070914; --focus:#9cc2ff;
}
:root[data-theme="light"]{
  color-scheme:light;
  --bg:#f2f3f9; --bg2:#e6e8f3; --ink:#0e1230; --muted:#4a5175; --line:rgba(20,30,80,.14);
  --panel:rgba(255,255,255,.7); --btn-ink:#fff; --focus:#2457d6;
  --hal:#6b4fd8; --neo:#d1105f; --kep:#ad3c04; --kin:#7a5800; --str:#0574b0;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:8px;z-index:50;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:8px}
.skip:focus{left:12px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}

/* Bar */
.bar{position:absolute;inset:0 0 auto 0;z-index:5;display:flex;align-items:center;gap:24px;padding:18px var(--gut)}
.mark{display:flex;align-items:center;gap:10px;text-decoration:none;font:600 15px/1 var(--display);letter-spacing:.01em}
.nav{display:flex;gap:26px;margin-left:auto}
.nav a{text-decoration:none;font-weight:600;font-size:15px;color:var(--muted)}
.nav a:hover{color:var(--ink)}
.theme{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--panel);color:var(--ink);display:grid;place-items:center;cursor:pointer}
.theme svg{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
[data-theme="dark"] .theme .moon,[data-theme="light"] .theme .sun{display:none}
@media (max-width:760px){.nav{display:none}.theme{margin-left:auto}}

/* Hero */
.hero{position:relative;min-height:max(760px,100svh);display:grid;grid-template-rows:auto 1fr;overflow:hidden;
  background:radial-gradient(120% 70% at 50% 100%,var(--bg2),var(--bg) 70%)}
.hero-copy{position:relative;z-index:2;max-width:var(--max);width:100%;margin:0 auto;padding:clamp(96px,13vh,140px) var(--gut) 0;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:20px 56px;align-items:end}
.hero h1{font:700 clamp(38px,4.7vw,70px)/1 var(--display);letter-spacing:-.035em;margin:0;max-width:15ch;grid-row:span 2;text-wrap:balance}
.lede{max-width:46ch;margin:0;color:var(--muted);font-size:clamp(17px,1.3vw,19px)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:980px){.hero-copy{grid-template-columns:1fr}.hero h1{grid-row:auto}.lede{margin-top:6px}.hero-actions{margin-top:8px}}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:999px;font:700 15px/1 var(--body);text-decoration:none;border:1px solid var(--line);cursor:pointer}
.btn.primary{background:var(--ink);color:var(--btn-ink);border-color:transparent}
.btn.primary:hover{filter:brightness(1.1)}
.btn.ghost{background:var(--panel);color:var(--ink)}
.btn.small{min-height:44px;padding:0 18px;font-size:14px;background:var(--panel)}
.ring-wrap{position:relative;min-height:460px}
.ring{position:absolute;inset:-40px 0 0 0;width:100%;height:calc(100% + 40px);display:block;cursor:grab;touch-action:pan-y}
.ring.drag{cursor:grabbing}
.ring-ui{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);display:flex;align-items:center;gap:10px;z-index:3}
.ring-step{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--panel);color:var(--ink);display:grid;place-items:center;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.ring-step svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.ring-now{display:grid;justify-items:center;min-width:220px;padding:8px 18px;border-radius:16px;text-decoration:none;background:var(--panel);border:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.ring-name{font:600 18px/1.2 var(--display)}
.ring-what{font-size:13px;color:var(--muted)}
.no-webgl .ring{display:none}
.no-webgl .ring-wrap{min-height:120px}

/* Sections */
section h2{font:600 clamp(30px,4vw,52px)/1.05 var(--display);letter-spacing:-.03em;margin:0;max-width:20ch}
.sub{color:var(--muted);max-width:62ch;margin:18px 0 0}
.demos{padding:clamp(80px,10vw,140px) 0}
.demo-list{list-style:none;margin:56px 0 0;padding:0;display:grid;gap:clamp(48px,7vw,96px)}
.demo{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:center}
/* even rows mirror the columns so every picture sits in the wide one and all five line up */
.demo:nth-child(even){grid-template-columns:minmax(0,1fr) minmax(0,1.25fr)}
.demo:nth-child(even) .demo-shot{order:2}
.demo-shot{position:relative;display:block;border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:var(--bg2);border:1px solid var(--line)}
.demo-shot img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.demo-shot:hover img{transform:scale(1.025)}
.demo-shot::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--c)}
.demo[data-demo="halcyon"]{--c:var(--hal)} .demo[data-demo="neon-broth"]{--c:var(--neo)} .demo[data-demo="kepler-lines"]{--c:var(--kep)}
.demo[data-demo="kinetic"]{--c:var(--kin)} .demo[data-demo="strata"]{--c:var(--str)}
.demo h3{font:600 clamp(26px,2.8vw,36px)/1.1 var(--display);letter-spacing:-.02em;margin:0}
.demo h3 a{text-decoration:none}
.demo h3 a:hover{text-decoration:underline;text-decoration-color:var(--c);text-underline-offset:6px}
.demo-kind{margin:6px 0 14px;color:var(--c);font-weight:700}
.demo-text>p{max-width:52ch}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 22px}
.tags span{font-size:13px;font-weight:600;padding:5px 11px;border-radius:999px;border:1px solid var(--line);color:var(--muted)}
@media (max-width:820px){.demo,.demo:nth-child(even){grid-template-columns:1fr}.demo:nth-child(even) .demo-shot{order:0}}

/* Matrix */
.can{padding:clamp(80px,10vw,140px) 0;background:var(--bg2);border-block:1px solid var(--line)}
.matrix-scroll{margin-top:44px;overflow-x:auto;border-radius:14px;border:1px solid var(--line);background:var(--panel)}
.matrix{width:100%;min-width:720px;border-collapse:collapse;font-size:15px}
.matrix th,.matrix td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:center}
.matrix tbody tr:last-child th,.matrix tbody tr:last-child td{border-bottom:0}
.matrix thead th{font:600 13px/1.2 var(--display);letter-spacing:.01em;position:sticky;top:0}
.matrix thead th:first-child,.matrix tbody th{text-align:left;font:600 15px/1.35 var(--body);color:var(--ink)}
.matrix tbody th{position:sticky;left:0;background:var(--bg2);min-width:240px}
.matrix thead th:first-child{position:sticky;left:0;background:var(--bg2);z-index:1}
.matrix tbody tr:hover th,.matrix tbody tr:hover td{background:color-mix(in srgb,var(--ink) 4%,transparent)}
.c-hal{--c:var(--hal);color:var(--hal)} .c-neo{--c:var(--neo);color:var(--neo)} .c-kep{--c:var(--kep);color:var(--kep)}
.c-kin{--c:var(--kin);color:var(--kin)} .c-str{--c:var(--str);color:var(--str)}
.dot{display:inline-block;width:14px;height:14px;border-radius:50%;background:var(--c);box-shadow:0 0 0 4px color-mix(in srgb,var(--c) 22%,transparent),0 0 14px color-mix(in srgb,var(--c) 55%,transparent)}
.more-title{font:600 22px/1.2 var(--display);margin:64px 0 0}
.more{list-style:none;padding:0;margin:22px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:0 48px}
.more li{padding:16px 0;border-top:1px solid var(--line);color:var(--muted)}
.more strong{color:var(--ink)}

/* Steps: a real sequence, so numbered */
.how{padding:clamp(80px,10vw,140px) 0}
.steps{list-style:none;counter-reset:s;margin:48px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.steps li{counter-increment:s;position:relative;padding-top:58px}
.steps li::before{content:counter(s);position:absolute;top:0;left:0;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  font:600 16px/1 var(--display);border:1px solid var(--line);background:var(--panel)}
.steps li::after{content:"";position:absolute;top:20px;left:52px;right:-16px;height:1px;background:var(--line)}
.steps li:last-child::after{display:none}
.steps h3{font:600 18px/1.3 var(--display);margin:0 0 8px;letter-spacing:-.01em}
.steps p{margin:0;color:var(--muted);font-size:16px}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;row-gap:40px}.steps li:nth-child(2)::after{display:none}}
@media (max-width:540px){.steps{grid-template-columns:1fr}.steps li::after{display:none}}

/* Talk */
.talk{padding:clamp(70px,9vw,120px) 0;position:relative;overflow:hidden}
.talk::before{content:"";position:absolute;left:50%;top:0;width:min(900px,90vw);height:2px;transform:translateX(-50%);background:var(--spectrum)}
.talk-inner{text-align:center;display:grid;justify-items:center}
.talk h2{max-width:none}
.talk p{color:var(--muted);margin:16px 0 28px;max-width:46ch}

.foot{padding:36px 0 84px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.foot p{margin:6px 0;max-width:70ch}

.lost{min-height:100svh;display:grid;align-content:center;gap:8px}
.lost h1{font:700 clamp(32px,5vw,60px)/1.05 var(--display);letter-spacing:-.03em;margin:0}