body { font-family: sans-serif; background-color: #f0f2f5; padding: 20px; }
.container { max-width: 400px; margin: auto; background: white; padding: 20px; border-radius: 12px; box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); text-align: center; }
input, select, button, textarea { width: 100%; padding: 12px; margin: 10px 0; font-size: 1rem; border: 1px solid #ccc; border-radius: 6px; }
button { background-color: #007bff; color: white; border: none; cursor: pointer; }
button:hover { background-color: #0056b3; }
textarea { height: 100px; }
.hidden { display: none; }