:root{--bg:#0b1020;--fg:#e5e7eb;--muted:#9ca3af;--brand:#6366f1;--brand2:#06b6d4}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,Arial;background:#0b1020;color:var(--fg)}.container{max-width:1100px;margin:0 auto;padding:28px}.nav{display:flex;justify-content:space-between;align-items:center}.btn{display:inline-block;padding:12px 18px;border-radius:12px;background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff}.btn.out{background:transparent;border:1px solid #374151;color:#e5e7eb}.foot{padding:18px 0;color:#9aa3b2;border-top:1px solid #2b2f44;margin-top:18px}