body { font-family: Arial; background: #f4f4f4; text-align: center; padding: 20px; }
.container { max-width: 600px; margin: auto; background: white; padding: 20px; border-radius: 10px; box-shadow: 0 0 10px rgba(0,0,0,0.1); }
button { padding: 15px 30px; font-size: 18px; background: #00b074; color: white; border: none; border-radius: 5px; cursor: pointer; }
input { padding: 10px; width: 80%; font-size: 18px; }