/* ============================================================
   KopWeb — Design System & Custom Styles
   ============================================================ */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    /* Brand Colors */
    --kw-primary: #2563eb;
    --kw-primary-dark: #1d4ed8;
    --kw-primary-light: #3b82f6;
    --kw-primary-subtle: #dbeafe;

    --kw-secondary: #0f172a;
    --kw-accent: #06b6d4;
    --kw-accent-light: #22d3ee;

    /* Semantic Colors */
    --kw-success: #059669;
    --kw-success-light: #d1fae5;
    --kw-warning: #d97706;
    --kw-warning-light: #fef3c7;
    --kw-danger: #dc2626;
    --kw-danger-light: #fee2e2;
    --kw-info: #0891b2;
    --kw-info-light: #cffafe;

    /* Neutrals */
    --kw-gray-50: #f8fafc;
    --kw-gray-100: #f1f5f9;
    --kw-gray-200: #e2e8f0;
    --kw-gray-300: #cbd5e1;
    --kw-gray-400: #94a3b8;
    --kw-gray-500: #64748b;
    --kw-gray-600: #475569;
    --kw-gray-700: #334155;
    --kw-gray-800: #1e293b;
    --kw-gray-900: #0f172a;

    /* Sidebar */
    --kw-sidebar-width: 260px;
    --kw-sidebar-bg: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    --kw-sidebar-text: #94a3b8;
    --kw-sidebar-active: #2563eb;

    /* Navbar */
    --kw-navbar-height: 60px;
    --kw-navbar-bg: #0f172a;

    /* Typography */
    --kw-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Shadows */
    --kw-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --kw-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --kw-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --kw-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);

    /* Border Radius */
    --kw-radius: 0.5rem;
    --kw-radius-lg: 0.75rem;
    --kw-radius-xl: 1rem;

    /* Transitions */
    --kw-transition: all 0.2s ease;
    --kw-transition-slow: all 0.3s ease;
}

/* --- Base --- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--kw-font);
    background: var(--kw-gray-100);
    color: var(--kw-gray-800);
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--kw-gray-300); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--kw-gray-400); }

/* --- Top Navbar --- */
.kw-navbar {
    background: var(--kw-navbar-bg) !important;
    height: var(--kw-navbar-height);
    padding: 0 1rem;
    z-index: 1040;
    box-shadow: var(--kw-shadow-md);
    backdrop-filter: blur(10px);
}

.kw-brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--kw-primary), var(--kw-accent));
    border-radius: var(--kw-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.kw-avatar {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--kw-primary-light), var(--kw-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

/* --- Sidebar --- */
.kw-sidebar {
    position: fixed;
    top: var(--kw-navbar-height);
    left: 0;
    width: var(--kw-sidebar-width);
    height: calc(100vh - var(--kw-navbar-height));
    background: var(--kw-sidebar-bg);
    z-index: 1030;
    overflow-y: auto;
    transition: var(--kw-transition-slow);
    display: flex;
    flex-direction: column;
}

.kw-sidebar-header {
    display: none;
    padding: 1rem;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.kw-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
}

.kw-sidebar-nav {
    padding: 0.5rem 0;
    flex: 1;
}

.kw-sidebar-divider {
    padding: 1rem 1.25rem 0.35rem;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--kw-gray-500);
}

.kw-sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.55rem 1.25rem;
    margin: 1px 0.5rem;
    color: var(--kw-sidebar-text);
    text-decoration: none;
    border-radius: var(--kw-radius);
    transition: var(--kw-transition);
    font-size: 0.825rem;
    font-weight: 400;
}

.kw-sidebar-link:hover {
    background: rgba(255,255,255,0.08);
    color: #e2e8f0;
    transform: translateX(2px);
}

.kw-sidebar-link.active {
    background: var(--kw-sidebar-active);
    color: white;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.kw-sidebar-link i {
    font-size: 1rem;
    width: 1.25rem;
    text-align: center;
}

.kw-sidebar-footer {
    padding: 0.75rem 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 0.7rem;
}

.kw-sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1025;
    backdrop-filter: blur(2px);
}

/* --- Main Content --- */
.kw-main {
    margin-left: var(--kw-sidebar-width);
    margin-top: var(--kw-navbar-height);
    min-height: calc(100vh - var(--kw-navbar-height));
    transition: var(--kw-transition-slow);
}

/* --- Cards --- */
.card {
    border: none;
    border-radius: var(--kw-radius-lg);
    box-shadow: var(--kw-shadow);
    transition: var(--kw-transition);
}

.card:hover {
    box-shadow: var(--kw-shadow-md);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--kw-gray-200);
    font-weight: 600;
    padding: 1rem 1.25rem;
}

/* Stat Cards */
.kw-stat-card {
    position: relative;
    overflow: hidden;
    border: none;
    border-radius: var(--kw-radius-lg);
    transition: var(--kw-transition);
}

.kw-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    opacity: 0.08;
    transform: translate(30%, -30%);
}

.kw-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--kw-shadow-lg);
}

.kw-stat-card .kw-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--kw-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.kw-stat-card .kw-stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.kw-stat-card .kw-stat-label {
    font-size: 0.75rem;
    color: var(--kw-gray-500);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Stat card color variants */
.kw-stat-card.kw-stat-primary { background: white; }
.kw-stat-card.kw-stat-primary .kw-stat-icon { background: var(--kw-primary-subtle); color: var(--kw-primary); }
.kw-stat-card.kw-stat-primary .kw-stat-value { color: var(--kw-primary-dark); }
.kw-stat-card.kw-stat-primary::before { background: var(--kw-primary); }

.kw-stat-card.kw-stat-success { background: white; }
.kw-stat-card.kw-stat-success .kw-stat-icon { background: var(--kw-success-light); color: var(--kw-success); }
.kw-stat-card.kw-stat-success .kw-stat-value { color: var(--kw-success); }
.kw-stat-card.kw-stat-success::before { background: var(--kw-success); }

.kw-stat-card.kw-stat-warning { background: white; }
.kw-stat-card.kw-stat-warning .kw-stat-icon { background: var(--kw-warning-light); color: var(--kw-warning); }
.kw-stat-card.kw-stat-warning .kw-stat-value { color: var(--kw-warning); }
.kw-stat-card.kw-stat-warning::before { background: var(--kw-warning); }

.kw-stat-card.kw-stat-danger { background: white; }
.kw-stat-card.kw-stat-danger .kw-stat-icon { background: var(--kw-danger-light); color: var(--kw-danger); }
.kw-stat-card.kw-stat-danger .kw-stat-value { color: var(--kw-danger); }
.kw-stat-card.kw-stat-danger::before { background: var(--kw-danger); }

.kw-stat-card.kw-stat-info { background: white; }
.kw-stat-card.kw-stat-info .kw-stat-icon { background: var(--kw-info-light); color: var(--kw-info); }
.kw-stat-card.kw-stat-info .kw-stat-value { color: var(--kw-info); }
.kw-stat-card.kw-stat-info::before { background: var(--kw-info); }

/* --- Page Header --- */
.kw-page-header {
    margin-bottom: 1.5rem;
}

.kw-page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--kw-gray-900);
    margin: 0;
}

/* --- Breadcrumb ---
   Markupnya tetap Bootstrap standar (<nav><ol class="breadcrumb">…), jadi ke-25
   halaman ikut berubah tanpa satu pun file PHP-nya disentuh untuk urusan gaya.
   Bentuknya: satu "pil" putih di atas latar abu halaman, pemisah chevron, dan
   crumb terakhir diberi warna merek supaya posisi saat ini langsung terbaca. */
.kw-page-header .breadcrumb {
    display: inline-flex;
    flex-wrap: nowrap;
    align-items: center;
    max-width: 100%;
    margin: 0.5rem 0 0;
    padding: 0.25rem 0.4rem;
    font-size: 0.775rem;
    font-weight: 500;
    line-height: 1.4;
    background: #fff;
    border: 1px solid var(--kw-gray-200);
    border-radius: 999px;
    box-shadow: var(--kw-shadow-sm);

    /* Rantai yang panjang (mis. nomor anggota di layar sempit) menggeser di
       dalam pilnya sendiri, bukan memaksa seluruh halaman punya scroll
       horizontal. Batang scroll-nya disembunyikan; isinya tetap bisa digeser. */
    overflow-x: auto;
    scrollbar-width: none;
}

.kw-page-header .breadcrumb::-webkit-scrollbar {
    display: none;
}

.kw-page-header .breadcrumb-item {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    padding-left: 0;
}

/* Pemisah bawaan Bootstrap adalah karakter "/" pada ::before milik item KEDUA
   dan seterusnya. Pemisah itu dimatikan, lalu digambar ulang sebagai ::after
   pada item SEBELUMNYA. Alasannya bukan selera: crumb terakhir kini punya latar
   sendiri, dan kalau pemisahnya tetap ::before miliknya, chevron itu akan ikut
   terjebak DI DALAM pil berwarna tersebut. Sebagai ::after milik tetangganya,
   chevron berada di antara kedua pil — di tempat yang semestinya.

   Chevron-nya digambar dari border, bukan ikon font, sehingga tidak bergantung
   pada nomor versi bootstrap-icons yang dipasang di layouts/header.php. */
.kw-page-header .breadcrumb-item + .breadcrumb-item::before {
    display: none;
}

.kw-page-header .breadcrumb-item:not(:last-child)::after {
    content: '';
    width: 0.32rem;
    height: 0.32rem;
    margin: 0 0.3rem;
    border: solid var(--kw-gray-400);
    border-width: 1.5px 1.5px 0 0;
    transform: rotate(45deg);
}

.kw-page-header .breadcrumb-item > a {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.18rem 0.55rem;
    color: var(--kw-gray-500);
    text-decoration: none;
    border-radius: 999px;
    transition: var(--kw-transition);
}

.kw-page-header .breadcrumb-item > a:hover {
    color: var(--kw-primary);
    background: var(--kw-gray-100);
}

.kw-page-header .breadcrumb-item > a:focus-visible {
    color: var(--kw-primary);
    background: var(--kw-gray-100);
    outline: 2px solid var(--kw-primary);
    outline-offset: 1px;
}

.kw-page-header .breadcrumb-item > a .bi {
    font-size: 0.9rem;
    line-height: 1;
}

/* Crumb terakhir = halaman yang sedang dibuka. */
.kw-page-header .breadcrumb-item.active {
    padding: 0.18rem 0.6rem;
    color: var(--kw-primary-dark);
    font-weight: 600;
    background: var(--kw-primary-subtle);
    border-radius: 999px;
}

/* "Pengaturan" pada halaman Manajemen User adalah satu-satunya crumb di aplikasi
   ini yang tanpa <a> (tak ada halaman indeks Pengaturan untuk dituju). Karena
   padding dipasang pada tautannya, crumb itu jadi menempel ke chevron di kiri
   dan kanannya. :has() dipakai supaya markup tak perlu ditambahi kelas khusus;
   pada browser yang belum mengenalnya aturan ini gugur diam-diam dan crumb itu
   kembali seperti sekarang — tidak ada yang rusak. */
.kw-page-header .breadcrumb-item:not(.active):not(:has(> a)) {
    padding: 0.18rem 0.55rem;
    color: var(--kw-gray-500);
}

/* --- Tables --- */
.table {
    font-size: 0.825rem;
}

.table thead th {
    background: var(--kw-gray-50);
    border-bottom: 2px solid var(--kw-gray-200);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: var(--kw-gray-600);
    padding: 0.75rem;
    white-space: nowrap;
}

.table tbody td {
    padding: 0.6rem 0.75rem;
    vertical-align: middle;
}

.table tbody tr {
    transition: var(--kw-transition);
}

.table tbody tr:hover {
    background: var(--kw-primary-subtle);
}

/* --- Buttons --- */
.btn {
    font-weight: 500;
    font-size: 0.825rem;
    border-radius: var(--kw-radius);
    padding: 0.45rem 1rem;
    transition: var(--kw-transition);
}

.btn:active {
    transform: scale(0.98);
}

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

.btn-primary:hover {
    background: var(--kw-primary-dark);
    border-color: var(--kw-primary-dark);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.btn-sm {
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
}

/* --- Badges --- */
.badge {
    font-weight: 500;
    font-size: 0.7rem;
    padding: 0.35em 0.65em;
    border-radius: 0.35rem;
    letter-spacing: 0.02em;
}

/* --- Forms --- */
.form-label {
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--kw-gray-700);
    margin-bottom: 0.35rem;
}

.form-control,
.form-select {
    font-size: 0.85rem;
    border: 1px solid var(--kw-gray-300);
    border-radius: var(--kw-radius);
    padding: 0.5rem 0.75rem;
    transition: var(--kw-transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--kw-primary-light);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* --- Login Page --- */
.kw-login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
    position: relative;
    overflow: hidden;
}

.kw-login-wrapper::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    border-radius: 50%;
}

.kw-login-wrapper::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(6,182,212,0.1) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    border-radius: 50%;
}

.kw-login-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--kw-radius-xl);
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.kw-login-logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--kw-primary), var(--kw-accent));
    border-radius: var(--kw-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin: 0 auto 1.5rem;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

/* --- DataTables overrides --- */
.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
    font-size: 0.825rem;
    border: 1px solid var(--kw-gray-300);
    border-radius: var(--kw-radius);
    padding: 0.35rem 0.5rem;
}

div.dataTables_wrapper div.dataTables_info {
    font-size: 0.8rem;
    color: var(--kw-gray-500);
}

/* --- Chart containers --- */
.kw-chart-container {
    position: relative;
    height: 300px;
}

/* --- Quick Action Buttons --- */
.kw-quick-actions .btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border-radius: var(--kw-radius-lg);
    transition: var(--kw-transition);
    text-decoration: none;
    border: 2px solid var(--kw-gray-200);
    background: white;
    color: var(--kw-gray-700);
}

.kw-quick-actions .btn:hover {
    border-color: var(--kw-primary);
    color: var(--kw-primary);
    transform: translateY(-2px);
    box-shadow: var(--kw-shadow-md);
}

.kw-quick-actions .btn i {
    font-size: 1.5rem;
}

/* --- Responsive --- */
@media (max-width: 991.98px) {
    .kw-sidebar {
        transform: translateX(-100%);
        top: 0;
        height: 100vh;
        z-index: 1050;
    }

    .kw-sidebar.show {
        transform: translateX(0);
    }

    .kw-sidebar-header {
        display: flex;
    }

    .kw-sidebar-overlay.show {
        display: block;
    }

    .kw-main {
        margin-left: 0;
    }
}

@media (max-width: 575.98px) {
    .kw-login-card {
        margin: 1rem;
        padding: 1.5rem;
    }

    .kw-stat-card .kw-stat-value {
        font-size: 1.2rem;
    }

    .kw-page-header h1 {
        font-size: 1.2rem;
    }
}

/* --- Animations --- */
.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* --- Error pages --- */
.kw-error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
}

.kw-error-page .error-code {
    font-size: 6rem;
    font-weight: 800;
    color: var(--kw-gray-300);
    line-height: 1;
}

/* --- Utilities --- */
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.fw-800 { font-weight: 800; }
.ls-tight { letter-spacing: -0.02em; }