/* Common styles */
.module-error { padding: 20px; background: #fff3cd; border-radius: 8px; }
.btn { padding: 8px 16px; border: none; border-radius: 4px; cursor: pointer; }
.btn-primary { background: #007bff; color: white; }
.card { background: white; border-radius: 8px; padding: 20px; }