body{font-family:Arial,sans-serif;margin:2rem;background-color:#f7f7f7}.container{max-width:700px;margin:auto;background:#fff;padding:2rem;border-radius:12px;box-shadow:0 2px 8px #0000001a}textarea{width:100%;padding:1rem;font-family:monospace;font-size:1rem;margin-bottom:1rem;border-radius:6px;border:1px solid #ccc}button{background-color:#2563eb;color:#fff;padding:.75rem 1.5rem;border:none;border-radius:6px;cursor:pointer}button:hover{background-color:#1e40af}p{margin-top:1rem;font-weight:700}