body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    border-radius: 0.5rem 0.5rem 0 0 !important;
    font-weight: 600;
}

.table {
    margin-bottom: 0;
}

.table-responsive {
    max-height: 600px;
    overflow-y: auto;
}

.badge {
    font-size: 0.85rem;
    padding: 0.35em 0.65em;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
}

.alert {
    border-radius: 0.375rem;
    font-size: 0.95rem;
}

.pagination {
    margin-top: 1.5rem;
}

.btn {
    border-radius: 0.375rem;
    font-weight: 500;
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control, .form-select {
    border-radius: 0.375rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert {
    animation: fadeIn 0.3s ease-in-out;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }

    .display-6 {
        font-size: 2rem;
    }
}

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