:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5;color:#1f2937;background:#f9fafb}*{box-sizing:border-box}body{margin:0;min-height:100vh}.container{max-width:480px;margin:10vh auto;padding:2rem;background:#fff;border-radius:12px;box-shadow:0 1px 3px #0000000d,0 10px 30px #0000000d;text-align:center}h1{margin-top:0;font-size:1.5rem}.btn{display:inline-block;padding:.75rem 1.5rem;border:none;border-radius:8px;background:#1f2937;color:#fff;font-size:1rem;text-decoration:none;cursor:pointer}.btn:hover{background:#111827}.btn-secondary{background:#e5e7eb;color:#1f2937;margin-top:1rem}.btn-secondary:hover{background:#d1d5db}.avatar{width:72px;height:72px;border-radius:50%;margin-bottom:1rem}.muted{color:#6b7280;font-size:.9rem}