:root{--bg:#f4faf9;--card:#fff;--ink:#16302f;--muted:#587170;--accent:#e8613c;--accent2:#1e7f84;--line:#d6e6e4}
@media(prefers-color-scheme:dark){:root{--bg:#0e1f21;--card:#14292c;--ink:#e6f2f0;--muted:#97b3b0;--accent:#ff8a63;--accent2:#5cc4c8;--line:#244043}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent2)}
header{background:linear-gradient(135deg,#1e7f84,#0e4d58);color:#fff}
header .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding:18px 20px}
header a{color:#fff;text-decoration:none}
.brand{font-weight:700;font-size:1.15rem}
nav a{margin-left:18px;opacity:.9}nav a:hover{opacity:1;text-decoration:underline}
.wrap{max-width:820px;margin:0 auto;padding:0 20px}
.hero{text-align:center;padding:64px 0 48px}
.hero h1{font-size:clamp(2rem,6vw,3rem);margin:0 0 12px}
.hero p{color:var(--muted);max-width:560px;margin:0 auto 28px}
.btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 24px;border-radius:999px;background:var(--accent);color:#fff;text-decoration:none;font-weight:600}
.btn.alt{background:transparent;color:var(--accent2);border:2px solid var(--accent2)}
main.doc{background:var(--card);border:1px solid var(--line);border-radius:16px;margin:32px auto;padding:32px 28px}
.doc h1{margin-top:0}
.doc h2{margin-top:2em;font-size:1.25rem;color:var(--accent2)}
.meta{color:var(--muted);font-size:.9rem}
.doc li{margin:.3em 0}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--bg)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-bottom:40px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
.card h3{margin-top:0}
footer{text-align:center;color:var(--muted);font-size:.9rem;padding:32px 20px 48px}
@media(max-width:560px){main.doc{padding:22px 16px;margin:16px 12px;border-radius:12px}nav a{margin:0 12px 0 0}}