:root{--bg:#05070d;--panel:#0c111c;--line:#1b2536;--fg:#e8eef8;--dim:#93a0b5;--cyan:#22D3EE;--pink:#F472B6;--accent:var(--cyan)}
:root[data-theme="light"]{--bg:#f4f7fb;--panel:#ffffff;--line:#d9e1ec;--fg:#0b1220;--dim:#4a566b}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 Inter,system-ui,sans-serif;min-height:100vh;overflow-x:hidden}
.grid-bg{position:fixed;inset:0;z-index:-1;background:
 radial-gradient(900px 500px at 15% -10%,rgba(34,211,238,.18),transparent 60%),
 radial-gradient(800px 500px at 100% 0%,rgba(244,114,182,.14),transparent 60%),
 linear-gradient(rgba(34,211,238,.06) 1px,transparent 1px) 0 0/48px 48px,
 linear-gradient(90deg,rgba(34,211,238,.06) 1px,transparent 1px) 0 0/48px 48px,var(--bg)}
a{color:var(--cyan)}
.top{display:flex;align-items:center;justify-content:space-between;max-width:1080px;margin:0 auto;padding:22px 16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);text-decoration:none;font:800 20px 'Exo 2',sans-serif;letter-spacing:.02em}
.brand i{width:14px;height:14px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#ffd2a6,#f97316 60%,#7c2d12);box-shadow:0 0 14px #f97316}
.top nav{display:flex;gap:18px}.top nav a{color:var(--dim);text-decoration:none;font-weight:500}.top nav a:hover{color:var(--fg)}
main{max-width:1080px;margin:0 auto;padding:0 16px 64px}
.hero{padding:56px 0 40px}
.kicker{margin:0 0 10px;color:var(--pink);font:600 13px Inter,sans-serif;letter-spacing:.14em;text-transform:uppercase}
h1{margin:0;font:800 clamp(38px,7vw,76px)/1.04 'Exo 2',sans-serif;background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:720px;font-size:19px;color:var(--dim);margin:20px 0 0}
.discs{display:flex;gap:16px;margin-top:36px}
.discs span{width:54px;height:54px;border-radius:50%;border:4px solid var(--c);box-shadow:0 0 22px -2px var(--c),inset 0 0 14px -4px var(--c);animation:glow 3s ease-in-out infinite}
.discs span:nth-child(2){animation-delay:.4s}.discs span:nth-child(3){animation-delay:.8s}.discs span:nth-child(4){animation-delay:1.2s}.discs span:nth-child(5){animation-delay:1.6s}
@keyframes glow{50%{transform:translateY(-6px);box-shadow:0 0 34px 2px var(--c),inset 0 0 18px -2px var(--c)}}
@media (prefers-reduced-motion:reduce){.discs span{animation:none}}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.cards article,.note{background:color-mix(in srgb,var(--panel) 88%,transparent);border:1px solid var(--line);border-radius:18px;padding:24px}
.cards article:nth-child(1){box-shadow:inset 0 2px 0 var(--cyan)}.cards article:nth-child(2){box-shadow:inset 0 2px 0 var(--pink)}.cards article:nth-child(3){box-shadow:inset 0 2px 0 #34D399}
h2{font:700 21px 'Exo 2',sans-serif;margin:0 0 8px}
.cards p,.note p{margin:0;color:var(--dim)}
.note{margin-top:16px}
.doc{max-width:760px;padding-top:40px}
.doc h1{font-size:clamp(34px,6vw,54px)}
.doc h2{margin:38px 0 8px;color:var(--fg)}
.doc p,.doc li{color:var(--dim)}.doc b{color:var(--fg)}
.doc ul{padding-left:22px}.doc li{margin:6px 0}
footer{max-width:1080px;margin:0 auto;padding:24px 16px 40px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:20px;color:var(--dim);font-size:14px}
footer a{color:var(--dim)}