body {
    background-color: #f8f9fa;
}

.navbar-brand {
    font-weight: 600;
}

.card {
    border: none;
    margin-bottom: 1.5rem;
}

.card-header {
    font-weight: 600;
    border-bottom: 2px solid #e9ecef;
}

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    color: #6c757d;
}

.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
}

.btn {
    font-weight: 500;
}

.modal-header {
    border-bottom: 2px solid #e9ecef;
}

.list-group-item {
    border-left: none;
    border-right: none;
}

.list-group-item:first-child {
    border-top: none;
}

.list-group-item:last-child {
    border-bottom: none;
}

/* Calendar styling */
.fc-event {
    cursor: pointer;
}

/* Chart containers */
canvas {
    max-height: 300px;
}

/* Responsive improvements */
@media (max-width: 768px) {
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .btn-sm {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Loading state */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Notification styling */
.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: #dc3545;
    color: white;
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 0.75rem;
    font-weight: bold;
}