body { font-family: Arial; margin: 0; padding: 20px; background: #f5f5f5; }
main { background: white; padding: 30px; border-radius: 5px; max-width: 600px; margin: 0 auto; }
input { width: 100%; padding: 10px; margin: 5px 0 15px 0; border: 1px solid #ddd; border-radius: 4px; }
.btn { padding: 10px 20px; background: #9C27B0; color: white; border: none; border-radius: 4px; cursor: pointer; }
ul { list-style: none; }
li { padding: 10px; background: #f9f9f9; margin: 5px 0; border-radius: 4px; }
a { color: #0066cc; text-decoration: none; }
button { margin-left: 10px; }