:root{
  --bg:#f4f9fb; --surface:#fff; --ink:#0b1b2b; --muted:#4d6275; --line:#d5e3ea;
  --accent:#0a8f6e; --glow1:rgba(79,227,181,.22); --glow2:rgba(143,195,217,.35);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    --bg:#0b1b2b; --surface:#102538; --ink:#eaf4f8; --muted:#94aec0; --line:#1e3850;
    --accent:#4fe3b5; --glow1:rgba(79,227,181,.16); --glow2:rgba(70,130,170,.30);
  }
}
:root[data-theme=dark]{
  --bg:#0b1b2b; --surface:#102538; --ink:#eaf4f8; --muted:#94aec0; --line:#1e3850;
  --accent:#4fe3b5; --glow1:rgba(79,227,181,.16); --glow2:rgba(70,130,170,.30);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{position:relative;margin:0;overflow-x:hidden;background:var(--bg);color:var(--ink);font:17px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.top{display:flex;align-items:center;justify-content:space-between;padding:20px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:.02em;font-size:1.15rem}
.brand svg{width:28px;height:28px}
nav a{margin-left:20px;text-decoration:none;color:var(--muted);font-size:.95rem}
nav a:hover{color:var(--ink)}
.hero{padding:72px 0 88px}
body::before{content:"";position:absolute;inset:0 0 auto;height:90vh;z-index:-1;pointer-events:none;
  background:radial-gradient(60% 50% at 30% 30%,var(--glow1),transparent 70%),radial-gradient(50% 60% at 75% 20%,var(--glow2),transparent 70%)}
.eyebrow{color:var(--accent);font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:.78rem}
h1{font-size:clamp(2.2rem,6vw,3.8rem);line-height:1.08;margin:14px 0 18px;letter-spacing:-.02em;max-width:16ch}
.lede{color:var(--muted);font-size:1.15rem;max-width:56ch;margin:0}
section{padding:48px 0}
h2{font-size:1.6rem;margin:0 0 8px;letter-spacing:-.01em}
.sub{color:var(--muted);margin:0 0 28px;max-width:60ch}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;text-decoration:none;transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-2px);border-color:var(--accent)}
.card h3{margin:0 0 6px;font-size:1.1rem}
.card p{margin:0 0 12px;color:var(--muted);font-size:.95rem}
.card .host{color:var(--accent);font-size:.85rem;font-weight:600}
.pillars{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.pillars h3{margin:0 0 6px;font-size:1rem}
.pillars p{margin:0;color:var(--muted);font-size:.95rem}
footer{border-top:1px solid var(--line);margin-top:32px;padding:28px 0 40px;color:var(--muted);font-size:.9rem;display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between}
footer a{color:var(--muted)}
.prose{max-width:68ch;padding:32px 0 56px}
.prose h1{font-size:2rem;max-width:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}