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

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

.card {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: none;
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
}

.btn {
    border-radius: 0.375rem;
}

.table th {
    font-weight: 600;
    border-top: none;
}

footer {
    margin-top: auto;
    background-color: #f8f9fa;
    border-top: 1px solid #dee2e6;
}

.alert {
    border: none;
    border-radius: 0.375rem;
}

.modal-content {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid #dee2e6;
    background-color: #f8f9fa;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    background-color: #f8f9fa;
}

.form-control:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.badge {
    font-weight: 500;
}

@media (max-width: 767.98px) {
    .table-responsive {
        font-size: 0.875rem;
    }

    .btn-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
}