:root{--bg: #f7f7fb;--text: #111827;--accent: #2563eb}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;background:var(--bg);color:var(--text)}.app{padding:2rem}.sample{padding:1rem;background:#fff;border-radius:8px;box-shadow:0 1px 3px #00000014}