body{font-family:system-ui,Arial,sans-serif;margin:0;background:#f7f9fc;color:#0f172a}
.container{max-width:720px;margin:40px auto;padding:0 16px}
label{display:block;margin:.5rem 0 .25rem;font-weight:600}
input,textarea,select{width:100%;padding:.5rem;border:1px solid #cbd5e1;border-radius:8px}
button{background:#2563eb;color:#fff;border:none;padding:.6rem 1rem;border-radius:8px;cursor:pointer}
button:disabled{opacity:.6;cursor:not-allowed}