body{margin:0;padding:0;font-family:Arial,sans-serif;background-color:#f5f5f5}.container{max-width:600px;margin:3rem auto;background:#fff;padding:2rem;border-radius:8px;box-shadow:0 4px 12px #0000001a}input,textarea{width:100%;padding:.75rem;margin-bottom:1rem;border:1px solid #ccc;border-radius:4px}button{background-color:#007bff;color:#fff;padding:.75rem 1.25rem;border:none;border-radius:4px;cursor:pointer;display:flex;align-items:center}button:hover{background-color:#0056b3}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}