body { font-family: Arial, sans-serif; margin: 20px; background: #f4f4f4; }
.login-container { max-width: 400px; margin: 100px auto; background: white; padding: 20px; border-radius: 8px; }
.dashboard .card { background: white; margin: 10px; padding: 15px; border-radius: 8px; display: inline-block; min-width: 200px; }
.alertas { background: #fff3cd; padding: 10px; border-left: 5px solid #ffc107; }
.error { color: red; }
.success { color: green; }
table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid #ddd; padding: 8px; }
.card { background: white; margin: 10px; padding: 15px; border-radius: 8px; display: inline-block; min-width: 200px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.alertas { background: #fff3cd; padding: 10px; border-left: 5px solid #ffc107; margin-top: 20px; }
.success { color: green; background: #d4edda; padding: 10px; border-radius: 5px; }
.error { color: red; background: #f8d7da; padding: 10px; border-radius: 5px; }
form input, form select, form textarea, form button { display: block; margin: 10px 0; padding: 8px; width: 100%; max-width: 400px; border-radius: 4px; border: 1px solid #ccc; }
button { background: #2c3e50; color: white; border: none; cursor: pointer; }
button:hover { background: #1abc9c; }