body{font-family:Arial,sans-serif;line-height:1.6;margin:0;padding:0;display:flex;flex-direction:column;justify-content:center;align-items:center;height:100vh;background-color:#f4f4f4}header{margin-bottom:20px}main{width:90%;max-width:600px;text-align:center;background:#fff;padding:20px;box-shadow:0 0 10px rgba(0,0,0,.1)}form{margin-top:20px}input[type=email],input[type=text],textarea{width:calc(100% - 22px);padding:10px;margin-top:5px}textarea{height:120px;resize:none}button{width:100%;padding:10px;background-color:#007bff;color:#fff;border:none;cursor:pointer}button:hover{background-color:#0056b3}