:root {
    --primary-color: #4e73df;
    --secondary-color: #858796;
    --success-color: #1cc88a;
    --info-color: #36b9cc;
    --warning-color: #f6c23e;
    --danger-color: #e74a3b;
}

body {
    font-family: 'Nunito', 'Segoe UI', sans-serif;
    background-color: #f8f9fc;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
}

.card-header {
    background-color: #f8f9fc;
    border-bottom: 1px solid #e3e6f0;
    padding: 1rem 1.35rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #2e59d9;
    border-color: #2653d4;
}

.table th {
    border-top: none;
    font-weight: 600;
    color: #5a5c69;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(78, 115, 223, 0.25);
}

.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter {
    margin-bottom: 1rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: 0.35rem;
}

.pagination .page-link {
    color: var(--primary-color);
}

.pagination .active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.modal-content {
    border-radius: 0.5rem;
}

.sweet-alert {
    border-radius: 0.5rem;
}

@media (max-width: 768px) {
    .container-fluid {
        padding: 0 0.5rem;
    }
    
    .card-header h4 {
        font-size: 1.2rem;
    }
}

/* Invoice card styles */
.invoice-card {
    transition: transform 0.2s, box-shadow 0.2s;
}

/* Mobile table responsive */
@media (max-width: 768px) {
    .table-responsive {
        font-size: 0.85rem;
    }

    .btn-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.7rem;
    }

    .badge {
        font-size: 0.7rem;
    }
}

/* Print styles */
@media print {
    .btn-group,
    .status-filters,
    .btn,
    .bottom-nav,
    .mobile-header,
    .desktop-sidebar {
        display: none !important;
    }

    .main-content {
        margin: 0 !important;
        padding: 0 !important;
    }

    .card {
        border: none !important;
        box-shadow: none !important;
    }
}