:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;font-weight:400;color:#111827;background:linear-gradient(135deg,#fef3c7,#f9fafb)}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center}.app-shell{width:min(100%,42rem);padding:2rem 1rem}.welcome-card{background:white;border:1px solid #e5e7eb;border-radius:1.25rem;box-shadow:0 20px 50px rgba(15,23,42,.08);padding:2.5rem;text-align:center}.eyebrow{margin:0 0 .5rem;text-transform:uppercase;letter-spacing:.2em;font-size:.8rem;font-weight:700;color:#2563eb}button{margin-top:1rem;padding:.75rem 1.25rem;border:none;border-radius:999px;background:#2563eb;color:white;cursor:pointer}