body{font-family:Arial,sans-serif;display:flex;align-items:center;justify-content:center;min-height:100vh;margin:0;background-color:#f5f5f5;padding:20px;box-sizing:border-box}.container{width:90%;max-width:500px;padding:30px;background-color:#fff;border-radius:10px;box-shadow:0 8px 16px rgba(0,0,0,.1);text-align:center}input,textarea{width:100%;padding:12px;margin:10px 0;border:1px solid #ddd;border-radius:6px;font-size:1em;resize:vertical;box-sizing:border-box}h1{margin-bottom:20px;font-size:1.5em}button{width:48%;padding:10px;margin:10px 1%;font-size:1em;color:#fff;background-color:#007bff;border:none;border-radius:50px;cursor:pointer}button:hover{background-color:#0056b3}button:active{background-color:#00448a}