:root{--bg:#0f1117;--card:#151a24;--text:#e8eef7;--muted:#a9b4c2;--link:#8ab4ff;--accent:#7dd3fc}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,'Apple Color Emoji','Segoe UI Emoji';background:var(--bg);color:var(--text)}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:980px;margin:0 auto;padding:24px}
.nav{display:flex;gap:14px;flex-wrap:wrap;margin:8px 0 20px}
.nav a{padding:8px 12px;border-radius:12px;background:var(--card);border:1px solid #222a3b}
.card{background:var(--card);border:1px solid #222a3b;border-radius:16px;padding:20px;margin:16px 0;box-shadow:0 10px 30px rgba(0,0,0,.25)}
h1,h2{line-height:1.2;margin:12px 0 10px}
h1{font-size:28px} h2{font-size:20px}
small,.muted{color:var(--muted)}
footer{margin:40px 0 10px;color:var(--muted);font-size:13px}
.btn{display:inline-block;padding:10px 14px;border-radius:10px;background:var(--accent);color:#0b1321;font-weight:600;border:0}
.list{margin:0;padding-left:20px}
pre.code{overflow:auto;background:#0f1422;border:1px solid #222a3b;border-radius:12px;padding:14px}
kbd{background:#222a3b;border:1px solid #2d3650;border-bottom-width:2px;border-radius:6px;padding:2px 6px;color:#c9d4e3}
.badge{display:inline-block;padding:3px 8px;border:1px solid #2d3650;border-radius:999px;color:#b8c2cf;font-size:12px}
.grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:720px){.grid{grid-template-columns:1fr 1fr}}