:root{--ink:#111111;--paper:#ffffff;--muted:#5b5b5b;--line:#e6e6e6;--amber:#FFDC00;--amber-ink:#111;--card:#f7f7f5;--maxw:1080px}
@media (prefers-color-scheme:dark){:root{--ink:#f2f2f2;--paper:#0f0f0f;--muted:#a3a3a3;--line:#262626;--card:#181818}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;font-feature-settings:"tnum","lnum";color:var(--ink);background:var(--paper);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
header.top{background:#111;color:#fff}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:20px;letter-spacing:-.01em}
.brand .mark{width:28px;height:28px;border-radius:7px;background:var(--amber);display:grid;place-items:center}
.brand .mark svg{width:18px;height:18px}
nav.main{display:flex;gap:18px;align-items:center;font-size:14px}
nav.main a{color:#ddd;text-decoration:none}nav.main a:hover{color:#fff}
nav.main .lang{border:1px solid #333;border-radius:999px;padding:4px 10px;color:#fff}
@media (max-width:640px){nav.main a:not(.lang){display:none}.cta .btn{font-size:14px;padding:10px 14px}}
.hero{padding:72px 0 56px;border-bottom:1px solid var(--line)}
.eyebrow{display:inline-block;background:var(--amber);color:var(--amber-ink);font-weight:700;font-size:12px;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px}
h1{font-size:clamp(34px,5.2vw,56px);line-height:1.05;letter-spacing:-.02em;margin:18px 0 16px;max-width:16ch}
.lead{font-size:clamp(17px,2vw,21px);color:var(--muted);max-width:60ch;margin:0 0 28px}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:10px;border:1.5px solid var(--ink);border-radius:12px;padding:10px 16px;text-decoration:none;font-weight:600;font-size:15px;opacity:.55;cursor:default}
.badge small{display:block;font-weight:400;font-size:11px;color:var(--muted);line-height:1.1}
.btn{display:inline-block;background:var(--amber);color:#111;font-weight:700;padding:12px 18px;border-radius:12px;text-decoration:none}
.btn.ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink)}
section{padding:56px 0}
h2{font-size:clamp(24px,3vw,32px);letter-spacing:-.015em;margin:0 0 8px}
.sub{color:var(--muted);margin:0 0 28px;max-width:60ch}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
.card h3{margin:10px 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:15px}
.ico{width:36px;height:36px;border-radius:10px;background:var(--amber);display:grid;place-items:center}
.ico svg{width:20px;height:20px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:6px 12px;font-size:14px}
.note{font-size:13px;color:var(--muted);margin-top:14px}
.split{display:grid;gap:28px;grid-template-columns:1.1fr 1fr;align-items:center}
@media (max-width:800px){.split{grid-template-columns:1fr}}
.list{margin:0;padding-left:20px;color:var(--muted)}
.list li{margin:6px 0}
.list strong{color:var(--ink)}
footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center}
footer nav{display:flex;flex-wrap:wrap;gap:16px}
footer a{color:var(--muted);text-decoration:none}footer a:hover{color:var(--ink)}
.doc{max-width:760px;margin:0 auto;padding:48px 20px 72px}
.doc h1{font-size:clamp(28px,4vw,40px);max-width:none}
.doc h2{font-size:22px;margin:36px 0 10px}
.doc h3{font-size:17px;margin:24px 0 6px}
.doc p,.doc li{font-size:16px}
.doc table{width:100%;border-collapse:collapse;font-size:14px;margin:12px 0 20px;display:block;overflow-x:auto}
.doc th,.doc td{border:1px solid var(--line);padding:8px 10px;vertical-align:top;text-align:left}
.doc th{background:var(--card)}
.doc .meta{color:var(--muted);font-size:14px}
.doc code{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:1px 5px;font-size:.92em}
.callout{background:var(--card);border-left:4px solid var(--amber);padding:12px 16px;border-radius:0 12px 12px 0;margin:16px 0}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:var(--amber);padding:8px;z-index:9}