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

.card {
    border-radius: 10px;
    overflow: hidden;
}

.card-header {
    font-weight: 600;
}

.form-label {
    font-weight: 500;
}

.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

.modal-content {
    border-radius: 10px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .card-body {
        padding: 1.25rem;
    }
}