:root{color-scheme:dark;--bg:#070B14;--card:#111A2B;--text:#F3F5FA;--muted:#8A94A8;--primary:#6C4DFF;--blue:#4FA3FF;--border:#1F2A44}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,Segoe UI,Roboto,sans-serif;padding:0 16px}
main{max-width:760px;margin:0 auto;padding-block:48px 80px}header{display:flex;align-items:center;gap:12px;margin-bottom:32px}
.logo{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--blue),var(--primary),#B36BFF);display:grid;place-items:center;font-weight:800}
h1{font-size:30px;margin:0 0 8px}h2{font-size:20px;margin:32px 0 8px}p,li{color:#D5DAE6}.muted{color:var(--muted);font-size:14px}
a{color:#9D8CFF}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;margin:16px 0}
nav a{margin-right:16px}code{background:#18233A;padding:2px 6px;border-radius:6px}
.btn{display:inline-block;background:linear-gradient(90deg,#5B8CFF,#6C4DFF);color:#fff;padding:12px 20px;border-radius:12px;text-decoration:none;font-weight:600}