:root{color-scheme:dark light;--bg:#0f1115;--card:#171a21;--fg:#f3f4f6;--muted:#a1a6b3;--accent:#5865F2;--ok:#22c55e;--warn:#f59e0b}
@media (prefers-color-scheme: light){:root{--bg:#f6f7fb;--card:#fff;--fg:#111;--muted:#555}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}
.card{background:var(--card);border-radius:16px;padding:32px 28px;max-width:520px;width:100%;box-shadow:0 10px 40px rgba(0,0,0,.25)}
h1{font-size:clamp(22px,4vw,28px);margin:0 0 12px}p{margin:0 0 14px}.muted{color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;padding:14px 22px;border-radius:10px;margin:8px 0 18px}
.warn{background:rgba(245,158,11,.12);border-left:4px solid var(--warn);padding:10px 14px;border-radius:6px}
ol{padding-left:20px}li{margin-bottom:8px}