*{box-sizing:border-box}body{color:#e2e8f0;background:#0f172a;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}#app{place-items:center;min-height:100svh;padding:1rem;display:grid}.landing{background:#111827;border:1px solid #374151;border-radius:14px;width:min(680px,100%);padding:1.25rem}h1{margin:0 0 .75rem;font-size:clamp(1.7rem,5vw,2.4rem)}.intro{color:#d1d5db;margin:0}.actions{gap:.65rem;margin-top:1rem;display:grid}.button{border-radius:10px;justify-content:center;align-items:center;width:100%;min-height:48px;padding:.7rem 1rem;font-weight:600;text-decoration:none;display:inline-flex}.button.primary{color:#fff;background:#2563eb}.button.secondary{color:#bfdbfe;background:#1f2937;border:1px solid #374151}.hint{color:#93c5fd;margin:1rem 0 .4rem}.marker-link{color:#bfdbfe}@media (width>=700px){#app,.landing{padding:1.5rem}.actions{grid-template-columns:repeat(2,minmax(0,1fr))}}