:root{--ground:#EDF2EF;--surface:#fff;--ink:#16201C;--muted:#6B7771;--line:#D3DCD7;--accent:#2F5BEA;--hero:#16201C;--onhero:#F3F7F4;--gold:#E9A21A}
@media (prefers-color-scheme:dark){:root{--ground:#0D1210;--surface:#161D1A;--ink:#E8EFEB;--muted:#86928C;--line:#2B3531;--accent:#86A2FF;--hero:#1C2A24}}
*{box-sizing:border-box}body{margin:0;background:var(--ground);color:var(--ink);font:400 16px/1.65 "Sora",system-ui,sans-serif}
a{color:var(--accent)}main{max-width:720px;margin:0 auto;padding:32px 20px 64px}
.hero{background:var(--hero);color:var(--onhero);border-radius:28px;padding:36px 28px;display:grid;gap:18px}
.hero h1{margin:0;font-size:44px;line-height:1.05;letter-spacing:-1px}.hero p{margin:0;color:#9DAAA3;max-width:34ch}
.grid{display:grid;grid-template-columns:repeat(3,22px);gap:6px}.grid span{width:22px;height:22px;border-radius:6px;background:#E8EFEB}.grid span.d{background:#5B6B63}.grid span.a{background:#4E7BFF}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;padding:14px 22px;border-radius:999px;width:max-content}
.card{background:var(--surface);border-radius:20px;padding:24px;margin-top:16px}
h2{font-size:20px;margin:28px 0 8px}footer{color:var(--muted);font-size:13px;margin-top:40px}
ul{padding-left:20px}