:root {
    --primary: #4A90E2;
    --secondary: #7ED321;
    --accent: #F5A623;
    --danger: #BD10E0;
    --success: #7ED321;
    --light: #F8F9FA;
    --dark: #333333;
    --border-radius: 12px;
}

/* Global */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

body {
    background-color: var(--light);
    color: var(--dark);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, #3575c1 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
    color: white !important;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: white !important;
    transform: translateY(-2px);
}

.nav-link.active {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
}

/* Main */
main {
    flex: 1;
    padding: 2rem 0;
}

.container-main {
    max-width: 1200px;
    margin: 0 auto;
}

/* Cards */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, #3575c1 100%);
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    padding: 1.5rem;
    font-weight: 600;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #3575c1;
    border-color: #3575c1;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

/* Form */
.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid #ddd;
    padding: 0.75rem 1rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(74, 144, 226, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

/* Badges */
.badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
}

.badge-cluster-budget {
    background-color: var(--secondary);
    color: white;
}

.badge-cluster-foodies {
    background-color: var(--accent);
    color: white;
}

.badge-cluster-ladies {
    background-color: var(--danger);
    color: white;
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table thead {
    background-color: var(--light);
}

.table thead th {
    border-top: 2px solid #ddd;
    border-bottom: 2px solid #ddd;
    font-weight: 600;
    color: var(--dark);
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
}

.table tbody tr:hover {
    background-color: rgba(74, 144, 226, 0.05);
}

/* Footer */
footer {
    background-color: var(--dark);
    color: white;
    padding: 2rem 0;
    margin-top: auto;
    text-align: center;
}

/* Alerts */
.alert {
    border-radius: var(--border-radius);
    border: none;
    margin-bottom: 1.5rem;
}

.alert-info {
    background-color: rgba(74, 144, 226, 0.1);
    color: var(--primary);
}

.alert-success {
    background-color: rgba(126, 211, 33, 0.1);
    color: #5ca000;
}

/* Custom */
.custom-shadow {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.custom-shadow:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.cluster-card {
    border-left: 5px solid #4A90E2;
    transition: all 0.3s ease;
}

.cluster-card:hover {
    border-left-color: #3575c1;
}

/* Responsive */
@media (max-width: 768px) {
    main {
        padding: 1rem 0;
    }

    .card {
        margin-bottom: 1rem;
    }

    .table-responsive {
        font-size: 0.9rem;
    }
}

/* DataTables spacing */
.dataTables_wrapper {
    padding: 15px;
}

.card .table-responsive {
    padding: 15px;
}

/* Bagian atas datatable */
.dataTables_length,
.dataTables_filter {
    margin-bottom: 15px;
}

/* Pagination bawah */
.dataTables_info,
.dataTables_paginate {
    margin-top: 15px;
}

/* Search input */
.dataTables_filter input {
    border-radius: 8px;
    padding: 5px 10px;
    border: 1px solid #ccc;
}

/* Select jumlah data */
.dataTables_length select {
    border-radius: 8px;
    padding: 5px;
}

.card-body {
    padding: 20px;
}

/* Pastikan navbar-nav menggunakan baris (horizontal) bukan kolom */
.navbar-nav {
    display: flex !important;
    flex-direction: row !important;
    justify-content: center;
    width: auto;
}

/* Supaya di tampilan mobile tetap rapi (kembali jadi kolom) */
@media (max-width: 991px) {
    .navbar-nav {
        flex-direction: column !important;
    }
}

/* Pastikan brand tidak mendorong elemen lain */
.navbar-brand {
    display: inline-block;
    margin-bottom: 0.5rem;
}