:root {
    --primary-color: #003366;
    --secondary-color: #0055aa;
    --accent-color: #ffcc00;
    --light-bg: #f4f7f6;
    --white: #ffffff;
    --text-dark: #333333;
}

body {
    background-color: var(--light-bg);
    font-family: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-dark);
}

.navbar {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%) !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.sidebar {
    background-color: var(--white);
    border-right: 1px solid rgba(0,0,0,0.05);
    box-shadow: 2px 0 10px rgba(0,0,0,0.02);
}

/* Legacy sidebar rules — diganti assets/css/sidebar-menu.css */
.sidebar.legacy-sidebar .nav-link {
    font-weight: 500;
    color: #555 !important;
    border-radius: 8px;
    margin: 2px 12px;
    padding: 0.5rem 0.75rem;
    transition: background 0.2s ease, color 0.2s ease;
}

.sidebar.legacy-sidebar .nav-link:hover {
    background-color: rgba(0, 51, 102, 0.05);
    color: var(--primary-color) !important;
    transform: none;
}

.sidebar.legacy-sidebar .nav-link.active {
    background-color: var(--primary-color);
    color: var(--white) !important;
    box-shadow: 0 2px 8px rgba(0, 51, 102, 0.18);
}

.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

/* Remove transform to prevent flickering and layout instability */
.card:hover {
    transform: none !important;
}

/* Fix flickering on modal and transitions */
.modal {
    background: rgba(0,0,0,0.6) !important;
}
.modal-dialog {
    transform: none !important;
    transition: none !important;
}
.modal.fade .modal-dialog {
    transform: none !important;
    transition: none !important;
}

/* Ensure inputs are stable */
.form-control, .form-select {
    transition: none !important;
}

.btn, .nav-link {
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    box-shadow: 0 4px 12px rgba(0, 51, 102, 0.2);
}

.table {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
}

.table thead {
    background-color: #f8f9fa;
}

.badge {
    padding: 6px 12px;
    border-radius: 6px;
    font-weight: 500;
}

.progress {
    border-radius: 10px;
    background-color: #e9ecef;
}

.progress-bar {
    background-color: var(--secondary-color);
    border-radius: 10px;
}

/* Mobile Responsiveness Adjustments */
@media (max-width: 767.98px) {
    main.app-main {
        padding-top: 12px !important;
    }

    .container-fluid.app-layout {
        padding-left: 0;
        padding-right: 0;
    }

    /* Make tables scrollable on small screens */
    .table-responsive {
        border-radius: 10px;
        margin-bottom: 1rem;
    }

    /* Adjust card padding for mobile */
    .card-body {
        padding: 1.25rem;
    }

    /* Stack buttons in forms on mobile */
    .btn-group, .d-flex {
        flex-wrap: wrap;
    }

    .btn {
        width: 100%;
        margin-bottom: 10px;
    }

    .btn-group .btn {
        margin-bottom: 0;
    }

    /* Adjust font sizes for mobile */
    h1, .h1 { font-size: 1.5rem; }
    h2, .h2 { font-size: 1.3rem; }
    h3, .h3 { font-size: 1.2rem; }
    
    .nav-link, .btn, .form-control, .form-select {
        min-height: 44px;
    }

    .app-sidebar .nav-child-item,
    .app-sidebar .nav-single,
    .app-sidebar .nav-group-header {
        min-height: 42px;
    }
    
    .btn {
        justify-content: center;
    }
}

@media (min-width: 768px) {
    main.app-main {
        margin-top: 0;
    }
}