header{background-color:#333;color:#fff;padding:10px;text-align:center}nav{display:flex;justify-content:center;gap:20px}nav a{color:#fff;text-decoration:none;font-size:18px}nav a:hover{text-decoration:underline}div{padding:20px;text-align:center}h1{font-size:24px;margin-bottom:20px}canvas{max-width:100%}.footer{position:absolute;bottom:0;left:50%;right:50%;width:max-content;transform:translate(-50%,-50%);font-size:12px;-webkit-user-select:none;user-select:none;cursor:pointer}form{display:flex;flex-direction:column;max-width:400px;margin:0 auto;padding:20px;border:1px solid #ddd;border-radius:8px;background-color:#f9f9f9}label{margin-bottom:10px;font-size:16px}input{padding:8px;font-size:16px;margin-bottom:15px;border:1px solid #ddd;border-radius:4px}button{padding:10px 15px;font-size:16px;color:#fff;background-color:#007bff;border:none;border-radius:4px;cursor:pointer}button:hover{background-color:#0056b3}.error{color:red;font-size:14px;margin-bottom:10px}ul{list-style-type:none;padding:0;margin:20px auto;max-width:600px}li{padding:10px;border-bottom:1px solid #ddd;font-size:16px}body{font-family:Arial,sans-serif;margin:0;padding:0;background-color:#f0f0f0}#root{max-width:1200px;margin:0 auto;padding:20px}html{margin:0;padding:0;overflow:hidden;box-sizing:border-box}
