:root{color-scheme:light dark;--bg:#0f172a;--card:#1e293b;--fg:#e2e8f0;--muted:#94a3b8;--accent:#2563eb;--accent-hover:#1d4ed8}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg)}body,html,main{min-height:100vh}main{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.25rem;padding:2rem}.card{background:var(--card);border:1px solid rgba(148,163,184,.15);border-radius:16px;padding:2.5rem;width:100%;max-width:440px;box-shadow:0 20px 40px rgba(0,0,0,.35)}h1{margin:0 0 .5rem;font-size:1.75rem}p{color:var(--muted);margin:.25rem 0}.info{list-style:none;padding:0;margin:1.5rem 0;display:grid;grid-gap:.5rem;gap:.5rem}.info li{display:flex;justify-content:space-between;gap:1rem;padding:.6rem .85rem;background:rgba(15,23,42,.6);border-radius:8px}.info b{color:var(--muted);font-weight:500}button{font:inherit;cursor:pointer;border:none;border-radius:10px;padding:.75rem 1.25rem;background:var(--accent);color:white;font-weight:600;transition:background .15s ease}button:hover{background:var(--accent-hover)}button.secondary{background:transparent;border:1px solid rgba(148,163,184,.4);color:var(--fg)}button.secondary:hover{background:rgba(148,163,184,.1)}a.link{display:inline-block;margin-top:.5rem;color:var(--accent);text-decoration:none;font-weight:600}a.link:hover{text-decoration:underline}