:root{--bg-1:#f8f6ef;--bg-2:#ece7d9;--text-strong:#1f2a2c;--text-muted:#4f5b5d;--card-bg:hsla(0,0%,100%,.82);--card-border:rgba(31,42,44,.09)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;font-family:IBM Plex Sans,Segoe UI,sans-serif;color:var(--text-strong);background:radial-gradient(circle at 18% 20%,#fff 0,transparent 45%),linear-gradient(130deg,var(--bg-1),var(--bg-2))}.hero{min-height:100vh;display:grid;place-items:center;padding:2rem}.card{max-width:40rem;width:100%;border-radius:1rem;padding:2.25rem;background:var(--card-bg);border:1px solid var(--card-border);box-shadow:0 .8rem 2.1rem rgba(31,42,44,.08)}.label{margin:0;letter-spacing:.14em;text-transform:uppercase;font-size:.75rem;color:var(--text-muted)}h1{margin:.65rem 0;font-size:clamp(2rem,6vw,3rem);line-height:1.08}.message{margin:0;color:var(--text-muted);line-height:1.6;max-width:32ch}