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

.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border-radius: 0.5rem;
}

.card-header {
    border-radius: 0.5rem 0.5rem 0 0 !important;
    border-bottom: none;
}

.table th {
    border-top: none;
    font-weight: 600;
    font-size: 0.875rem;
}

.table td {
    vertical-align: middle;
    font-size: 0.875rem;
}

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

.modal-content {
    border: none;
    border-radius: 0.5rem;
}

.modal-header {
    border-radius: 0.5rem 0.5rem 0 0 !important;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.table-responsive {
    max-height: 400px;
    overflow-y: auto;
}

.badge {
    font-size: 0.75rem;
}

.preview-image {
    max-width: 50px;
    max-height: 50px;
    cursor: pointer;
    border-radius: 0.25rem;
}

.currency {
    font-weight: 600;
    color: #198754;
}

.currency.negative {
    color: #dc3545;
}

@media (max-width: 768px) {
    .table-responsive {
        font-size: 0.8rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .modal-dialog {
        margin: 0.5rem;
    }
}

/* Custom scrollbar */
.table-responsive::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.table-responsive::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.table-responsive::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.table-responsive::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}