:root {
            --sidebar-width: 260px;
            --sidebar-collapsed-width: 70px;
            --topbar-height: 56px;
        }

        body {
            min-height: 100vh;
            background-color: #f5f7fb;
        }

        .sidebar {
            position: fixed;
            top: 0;
            bottom: 0;
            left: 0;
            z-index: 100;
            width: var(--sidebar-width);
            transition: width 0.3s ease;
            background-color: #2c3e50;
            color: white;
            overflow-y: auto;
        }

        .sidebar.collapsed {
            width: var(--sidebar-collapsed-width);
        }

        .sidebar.collapsed .sidebar-text {
            display: none;
        }

        .sidebar.collapsed .sidebar-header h4 {
            display: none;
        }

        .sidebar-header {
            padding: 1.2rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.85);
            padding: 0.75rem 1rem;
            border-radius: 0.375rem;
            margin: 0.25rem 0.75rem;
            transition: all 0.2s;
        }

        .nav-link:hover,
        .nav-link.active {
            color: white;
            background-color: rgba(255, 255, 255, 0.15);
        }

        .nav-link i {
            width: 24px;
            text-align: center;
            margin-right: 0.75rem;
        }

        .main-content {
            margin-left: var(--sidebar-width);
            transition: margin-left 0.3s ease;
            padding-top: var(--topbar-height);
        }

        .main-content.collapsed {
            margin-left: var(--sidebar-collapsed-width);
        }

        .navbar-top {
            height: var(--topbar-height);
            background: linear-gradient(90deg, #1e3a5f 0%, #2c5282 100%);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

        .content-wrapper {
            padding: 1.5rem 2rem;
        }

        @media (max-width: 992px) {
            .sidebar {
                width: var(--sidebar-collapsed-width);
            }

            .sidebar .sidebar-text,
            .sidebar-header h4 {
                display: none;
            }

            .main-content {
                margin-left: var(--sidebar-collapsed-width);
            }
        }

/* Container utama tabel + loading */
.table-container {
    position: relative;
}

/* Area yang bisa di-scroll vertikal */
.table-responsive-scroll {
    max-height: 60vh;           /* sesuaikan tinggi sesuai kebutuhan, misal 50vh - 70vh */
    overflow-y: auto;           /* scroll vertikal muncul di sini */
    overflow-x: auto;           /* tetap support horizontal jika kolom banyak */
}

/* Sticky header */
#customerTable thead th {
    position: sticky;
    top: 0;
    z-index: 10;
    background-color: #212529;  /* sama dengan .table-dark */
    color: white;
}

/* Pastikan border bawah thead tetap rapi */
#customerTable thead {
    border-bottom: 2px solid #dee2e6; /* optional, biar terlihat jelas */
}

/* Agar table tidak punya margin bawah berlebih di dalam scroll area */
#customerTable {
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
}

/* Optional: agar baris pertama tbody tidak tertutup header */
#customerBody tr:first-child td {
    padding-top: 0.75rem; /* sesuaikan jika perlu */
}

/* Agar card-footer tetap di bawah dan tidak ikut scroll */
.card-footer {
    border-top: 1px solid rgba(0,0,0,0.125); /* biar terlihat seperti pemisah */
}