:root{font-family:Inter,system-ui,sans-serif;color:#1f2937;background:#f8fafc}body{margin:0}.page{min-height:100vh;display:grid;place-items:center;padding:2rem}.card{background:#fff;border-radius:16px;box-shadow:0 10px 30px #00000014;padding:2rem;max-width:760px;width:100%}.hero h1{font-size:clamp(2rem,5vw,4rem);margin:.25rem 0 1rem}.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;color:#6b7280}button{border:0;background:#111827;color:#fff;padding:.9rem 1.2rem;border-radius:10px;cursor:pointer}pre{background:#0f172a;color:#e2e8f0;padding:1rem;border-radius:12px;overflow:auto;margin-top:1rem}code{background:#f1f5f9;padding:.15rem .35rem;border-radius:6px}