body {
    font-family: 'Cairo', sans-serif;
    background-color: #f8f9fa;
    color: #333;
}
.table th, .table td {
    text-align: center;
    vertical-align: middle;
}
.table th { background-color: #e9ecef; }
.btn-primary { background-color: #0d6efd; border-color: #0d6efd; }
.btn-success { background-color: #198754; border-color: #198754; }
.btn-danger { background-color: #dc3545; border-color: #dc3545; }
.nav-link { font-weight: 600; color: #0d6efd; }
.nav-link:hover { background-color: #e9ecef; border-radius: 5px; }
.card { border-radius: 10px; }
form label { font-weight: 600; }
form input, form select { text-align: right; }
h3, h4 { color: #0d6efd; }
.alert-success { background-color: #d1e7dd; color: #0f5132; }
.alert-danger { background-color: #f8d7da; color: #842029; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }