body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f0f0f0; }
.container { max-width: 600px; margin: 20px auto; background: white; padding: 20px; border-radius: 10px; box-shadow: 0 0 10px #ccc; }
input, select, button { width: 100%; padding: 10px; margin: 10px 0; border-radius: 5px; border: 1px solid #ccc; }
h1, h2, h3 { color: #333; }
button { background-color: #28a745; color: white; border: none; }
button:hover { background-color: #218838; }