:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:light dark;background:#0b0d10;color:#e6e8eb}*{box-sizing:border-box}body{margin:0;min-height:100vh}.app{max-width:720px;margin:0 auto;padding:32px 20px}.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid #21262d;margin-bottom:24px}.brand{font-weight:600;color:inherit;text-decoration:none}.nav nav{display:flex;gap:12px}.nav nav a{color:#9aa4ad;text-decoration:none;padding:4px 8px;border-radius:6px}.nav nav a:hover{color:#e6e8eb}.nav nav a.active{color:#e6e8eb;background:#21262d}h1{margin:0 0 12px;font-size:22px}p{color:#9aa4ad;line-height:1.5}