/* ==========================================================================
   VRG B2B TRADE SYSTEM - PREMIUM ADMIN PANEL CSS
   ========================================================================== */

/* 1. Global Custom Variables (Theme & Tokens) */
:root {
    /* Color Palette - VRG Corporate (Forrest Green & Natural Gold) */
    --color-primary: HSL(145, 71%, 25%);      /* Brighter Corporate Green */
    --color-primary-light: HSL(145, 61%, 33%);
    --color-primary-rgb: 18, 109, 55;

    --color-accent: HSL(45, 100%, 50%);       /* Golden Yellow Latex */
    --color-accent-hover: HSL(45, 100%, 43%);

    --color-bg-body: HSL(210, 20%, 96%);      /* Clean Light Slate */
    --color-bg-card: HSL(0, 0%, 100%);
    --color-bg-sidebar: HSL(142, 70%, 10%);   /* Very Dark Green Sidebar */

    --color-text-main: HSL(210, 24%, 16%);
    --color-text-muted: HSL(210, 16%, 46%);
    --color-text-on-dark: HSL(0, 0%, 100%);

    /* Semantic Status Colors */
    --color-success: HSL(142, 76%, 36%);
    --color-warning: HSL(38, 92%, 50%);
    --color-danger: HSL(4, 90%, 58%);
    --color-info: HSL(200, 95%, 48%);

    /* Borders & Shadows */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-inset: inset 0 2px 4px rgba(0,0,0,0.06);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout Dimensions */
    --sidebar-width: 280px;
    --header-height: 76px;
}

/* 2. Base Resets & Document Setup */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    overflow-x: hidden;
    line-height: 1.5;
}

a {
    color: inherit;
    text-decoration: none;
}

button, input, select, textarea {
    font-family: inherit;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(var(--color-primary-rgb), 0.2);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(var(--color-primary-rgb), 0.4);
}

/* 3. Base Layout Structures */
.admin-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Layout */
.admin-sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(322deg, #008542, #008542);
    color: #e2f7ec;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-brand {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-logo-circle {
    width: 38px;
    height: 38px;
    background-color: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: 0 0 15px rgba(255, 204, 0, 0.4);
}

.brand-logo-img {
    width: 68px;
    height: 68px;
    object-fit: contain;
    border-radius: 50%;
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    /* border: 2px solid var(--color-accent); */
    padding: 1px;
}

.brand-text h1 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--color-text-on-dark);
}

.brand-text span {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #aae0c2;
    font-weight: 600;
    display: block;
}

.sidebar-nav {
    flex: 1;
    padding: 0px 5px;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}

.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.25);
    border-radius: 10px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

.sidebar-nav-header {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #88caa4;
    margin: 12px 16px 4px;
    font-weight: 700;
}

.sidebar-badge {
    font-size: 0.65rem;
    background-color: rgba(255, 255, 255, 0.12);
    color: #9fb6d4;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: auto;
    font-weight: 600;
    transition: var(--transition-fast);
}

.sidebar-nav-item a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    color: #d3f3e3;
    font-size: 0.92rem;
    font-weight: 500;
    border: 1px solid transparent;
    transition: var(--transition-fast);
}

.sidebar-nav-item a:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.12);
}

.sidebar-nav-item.active a {
    color: #ffffff;
    background: linear-gradient(100deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.08));
    font-weight: 600;
    border-color: rgba(255, 255, 255, 0.3);
}

/* Sidebar Submenu */
.sidebar-submenu {
    list-style: none;
    padding-left: 20px;
    margin-top: 4px;
    display: none;
    flex-direction: column;
    gap: 4px;
}

.sidebar-nav-item.open .sidebar-submenu {
    display: flex;
}

.sidebar-submenu a {
    padding: 10px 16px !important;
    font-size: 0.86rem !important;
    color: #b3dfc9 !important;
    background: transparent !important;
    border: none !important;
    border-radius: var(--border-radius-md) !important;
}

.sidebar-submenu a:hover {
    color: #ffffff !important;
    background-color: rgba(255, 255, 255, 0.08) !important;
}

.sidebar-submenu-item.active a {
    color: #ffffff !important;
    background-color: rgba(255, 255, 255, 0.15) !important;
    font-weight: 600 !important;
}

.submenu-chevron {
    margin-left: auto;
    transition: transform var(--transition-fast);
    font-size: 0.75rem;
}

.sidebar-nav-item.open .submenu-chevron {
    transform: rotate(180deg);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar-circle {
    width: 40px;
    height: 40px;
    background-color: var(--color-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--color-accent);
    border: 2px solid rgba(255,255,255,0.1);
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-info-name {
    font-size: 0.85rem;
    font-weight: 600;
    display: block;
    max-width: 140px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-info-role {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.5);
    display: block;
    text-transform: capitalize;
}

.btn-logout {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
}

.btn-logout:hover {
    color: var(--color-danger);
    background-color: rgba(255, 255, 255, 0.05);
}

/* Main Content Area */
.admin-main {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
}

/* Header Styles */
.admin-header {
    position: sticky;
    top: 0;
    z-index: 90;
    background: rgba(245, 247, 251, 0.86);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid #e3e9f1;
    padding: 13px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.crumb {
    font-size: 14.5px;
    color: #7287a0;
    font-family: 'Be Vietnam Pro', sans-serif;
}

.crumb b {
    color: #0f1b2d;
    font-family: 'Sora', 'Be Vietnam Pro', sans-serif;
    font-weight: 700;
}

.search {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid #e3e9f1;
    border-radius: 10px;
    padding: 8px 13px;
    width: 280px;
    color: #7287a0;
}

.search input {
    border: 0;
    outline: 0;
    font-family: inherit;
    font-size: 13px;
    width: 100%;
    color: #0f1b2d;
}

.avatar {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: linear-gradient(135deg, #1f822b, #2e75b6);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 13px;
    font-family: 'Sora', sans-serif;
}

.userchip {
    display: flex;
    align-items: center;
    gap: 9px;
    font-family: 'Be Vietnam Pro', sans-serif;
    min-width: 0;
}

.userchip b {
    font-size: 12.5px;
    color: #0f1b2d;
    display: block;
    max-width: 150px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.userchip small {
    display: block;
    color: #7287a0;
    font-size: 11px;
}

/* Core Dashboard Content Container */
.content-body {
    flex: 1;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 0px;
    min-width: 0;
}

/* 4. Glassmorphism Card System */
.card-panel {
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.04);
    padding: 24px;
    position: relative;
    /* overflow: hidden; */
}

.card-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.card-panel-header-ql {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.card-panel-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-primary);
}

.filter-bar {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.05);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
}

.filter-bar .filter-field {
    flex: 1;
    min-width: 180px;
}

.filter-bar label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
    display: block;
    margin-bottom: 6px;
}

.filter-bar select,
.filter-bar input {
    width: 100%;
    height: 38px;
    border-radius: 6px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    padding: 0 10px;
    font-size: 0.88rem;
    background: #fff;
}

/* 5. Statistics KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.kpi-card {
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0,0,0,0.03);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.kpi-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.kpi-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    background-color: rgba(11, 60, 31, 0.06);
    color: var(--color-primary);
}

.kpi-card.accent .kpi-icon-wrapper {
    background-color: rgba(255, 204, 0, 0.12);
    color: HSL(45, 100%, 40%);
}

.kpi-card.info .kpi-icon-wrapper {
    background-color: rgba(0, 150, 255, 0.08);
    color: var(--color-info);
}

.kpi-content {
    display: flex;
    flex-direction: column;
}

.kpi-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-main);
    margin-top: 4px;
}

/* 6. Advanced Custom Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table-custom {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table-custom th {
    background-color: rgba(11, 60, 31, 0.03);
    padding: 14px 20px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-primary-light);
    letter-spacing: 0.5px;
    border-bottom: 2px solid rgba(11, 60, 31, 0.06);
}

.table-custom td {
    padding: 16px 20px;
    font-size: 0.88rem;
    color: var(--color-text-main);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    vertical-align: middle;
}

.table-custom tbody tr:hover {
    background-color: rgba(11, 60, 31, 0.01);
}

/* Custom Badges for statuses */
.badge-custom {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 30px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: none;
}

.badge-custom.success {
    background-color: rgba(46, 117, 89, 0.1);
    color: var(--color-success);
}

.badge-custom.warning {
    background-color: rgba(255, 150, 0, 0.1);
    color: var(--color-warning);
}

.badge-custom.danger {
    background-color: rgba(240, 80, 80, 0.1);
    color: var(--color-danger);
}

.badge-custom.info {
    background-color: rgba(0, 150, 255, 0.1);
    color: var(--color-info);
}

.badge-custom.primary {
    background-color: rgba(0, 150, 255, 0.1);
    color: var(--color-info);
}

.badge-custom.secondary {
    background-color: rgba(100, 116, 139, 0.12);
    color: #475569;
}

.invoice-list-table {
    min-width: 1320px;
    table-layout: fixed;
}

.invoice-list-table th,
.invoice-list-table td {
    overflow-wrap: normal;
    word-break: normal;
}

.invoice-list-table .invoice-col-toggle {
    width: 40px;
}

.invoice-list-table .invoice-col-number {
    width: 150px;
}

.invoice-list-table .invoice-col-date {
    width: 100px;
    white-space: nowrap;
}

.invoice-list-table .invoice-number-link {
    color: #2563eb;
    font-family: monospace;
    font-weight: 700;
    text-decoration: none;
}

.invoice-list-table .invoice-col-party {
    width: 24%;
}

.invoice-list-table .invoice-col-party,
.invoice-list-table .invoice-col-party strong,
.invoice-list-table .invoice-col-party small {
    overflow-wrap: normal;
    word-break: normal;
}

.invoice-list-table .invoice-col-amount {
    width: 185px;
    white-space: nowrap;
    text-align: right;
}

.invoice-list-table .invoice-col-specialist {
    width: 160px;
    line-height: 1.45;
}

.invoice-list-table th.invoice-col-specialist,
.invoice-list-table th.invoice-col-status {
    line-height: 1.15;
}

.invoice-list-table td.invoice-col-specialist strong {
    display: block;
    max-width: 160px;
}

.invoice-list-table .invoice-col-status {
    width: 150px;
    white-space: nowrap;
    text-align: center;
}

.invoice-list-table .invoice-amount {
    color: var(--color-success);
    font-weight: 700;
    white-space: nowrap;
}

.invoice-list-table .invoice-exchange-note {
    color: var(--color-text-muted);
    display: block;
    font-size: 0.72rem;
    line-height: 1.35;
    margin-top: 4px;
    white-space: normal;
}

.invoice-list-table .invoice-status-badge {
    display: inline-flex;
    justify-content: center;
    min-width: 112px;
    max-width: 100%;
    text-transform: none;
    white-space: nowrap;
}

.invoice-list-table th.col-hide-sm,
.invoice-list-table td.col-hide-sm,
.invoice-list-table th.col-hide-xs,
.invoice-list-table td.col-hide-xs {
    display: table-cell !important;
}

/* 7. Action Button Components (Interactive) */
.btn-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-fast);
}

.btn-custom.primary {
    background-color: var(--color-primary);
    color: var(--color-text-on-dark);
}

.btn-custom.primary:hover {
    background-color: var(--color-primary-light);
}

.btn-custom.accent {
    background-color: var(--color-accent);
    color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(255, 204, 0, 0.2);
}

.btn-custom.accent:hover {
    background-color: var(--color-accent-hover);
}

.btn-custom.danger {
    background-color: var(--color-danger);
    color: var(--color-text-on-dark);
}

.btn-custom.danger:hover {
    background-color: HSL(4, 80%, 50%);
}

.btn-custom.outline {
    background-color: transparent;
    border-color: rgba(11, 60, 31, 0.2);
    color: var(--color-primary);
}

.btn-custom.outline:hover {
    background-color: rgba(11, 60, 31, 0.05);
}

.btn-custom.sm {
    padding: 6px 12px;
    font-size: 0.78rem;
}

.action-buttons {
    display: flex;
    gap: 8px;
}

/* 8. Split Grid Layouts */
.split-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (max-width: 1024px) {
    .split-grid {
        grid-template-columns: 1fr;
    }
}

/* 9. Live Feed Styles */
.feed-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    list-style: none;
}

.feed-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px;
    border-radius: var(--border-radius-md);
    background-color: rgba(11, 60, 31, 0.02);
    border: 1px solid rgba(11, 60, 31, 0.04);
}

.feed-bullet {
    width: 10px;
    height: 10px;
    background-color: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-accent);
}

.feed-content {
    flex: 1;
}

.feed-title {
    font-size: 0.88rem;
    font-weight: 600;
}

.feed-time {
    font-size: 0.72rem;
    color: var(--color-text-muted);
}

/* 10. Login Modal Screen */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(9, 53, 27, 0.85) 0%, rgba(18, 109, 55, 0.85) 100%), url('../image/rubber_bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 440px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.login-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
}

.login-logo .brand-logo-circle {
    width: 60px;
    height: 60px;
    font-size: 1.6rem;
}

.login-logo .login-logo-img {
    width: 128px;
    height:128px;
    /* border: 2px solid var(--color-accent); */
}

.login-logo h1 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--color-primary);
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-primary-light);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(0, 0, 0, 0.12);
    outline: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
    background-color: var(--color-bg-card);
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(11, 60, 31, 0.15);
}

.form-feedback-error {
    font-size: 0.76rem;
    color: var(--color-danger);
    font-weight: 500;
}

/* Alert Boxes */
.alert-box {
    padding: 16px;
    border-radius: var(--border-radius-md);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.alert-box.success {
    background-color: rgba(46, 117, 89, 0.08);
    color: var(--color-success);
    border: 1px solid rgba(46, 117, 89, 0.15);
}

.alert-box.danger {
    background-color: rgba(240, 80, 80, 0.08);
    color: var(--color-danger);
    border: 1px solid rgba(240, 80, 80, 0.15);
}

/* 11. Custom Tab Navigation */
.tabs-navigation {
    display: flex;
    gap: 10px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    margin-bottom: 24px;
}

.tab-nav-btn {
    padding: 12px 20px;
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    border-bottom: 3px solid transparent;
    transition: var(--transition-fast);
}

.tab-nav-btn:hover {
    color: var(--color-primary);
}

.tab-nav-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

#toggle-password:hover {
    color: var(--color-primary) !important;
}

/* Custom Styled Checkbox */
.checkbox-container {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.checkbox-container input[type="checkbox"] {
    display: none;
}

.custom-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0, 0, 0, 0.15);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    background-color: var(--color-bg-card);
}

.checkbox-container:hover .custom-checkbox {
    border-color: var(--color-primary);
}

.checkbox-container input[type="checkbox"]:checked + .custom-checkbox {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.custom-checkbox::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.7rem;
    color: #ffffff;
    opacity: 0;
    transform: scale(0);
    transition: var(--transition-fast);
}

.checkbox-container input[type="checkbox"]:checked + .custom-checkbox::after {
    opacity: 1;
    transform: scale(1);
}

.checkbox-label {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.checkbox-container:hover .checkbox-label {
    color: var(--color-primary-light);
}

/* 11. Details Grid Selector */
.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

/* ==========================================================================
   12. Responsive Styling for Mobile and Tablets
   ========================================================================== */

@media (max-width: 992px) {
    .sidebar-toggle-btn {
        display: block !important;
    }

    #sidebarCloseBtn {
        display: block !important;
    }

    .admin-sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        z-index: 100;
        width: 280px;
    }

    .admin-sidebar.open {
        transform: translateX(0);
    }

    .sidebar-brand {
        padding: 16px;
        gap: 8px;
    }

    .brand-logo-img {
        width: 44px;
        height: 44px;
        flex-shrink: 0;
    }

    .brand-text {
        min-width: 0;
    }

    .brand-text h1 {
        font-size: 0.95rem;
        white-space: nowrap;
    }

    .brand-text span {
        font-size: 0.6rem;
        letter-spacing: 0.5px;
        white-space: nowrap;
    }

    #sidebarCloseBtn {
        flex-shrink: 0;
    }

    .admin-main {
        margin-left: 0 !important;
        width: 100%;
    }

    .admin-header {
        padding: 10px 16px;
    }

    .search {
        width: 180px;
        padding: 6px 10px;
    }

    .userchip b, .userchip small {
        display: none;
    }

    .userchip {
        gap: 0;
    }

    .content-body {
        padding: 12px;
        gap: 12px;
    }

    .kpi-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 16px;
    }

    .card-panel {
        padding: 16px;
    }

    .details-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }

    .header-actions .badge-role {
        padding: 4px 10px;
        font-size: 0.7rem;
    }

    .header-title p {
        display: none; /* Hide welcome text on mobile */
    }
}

@media (max-width: 576px) {
    .crumb-prefix {
        display: none;
    }

    .search {
        display: none !important;
    }

    .crumb {
        max-width: 150px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .kpi-grid {
        grid-template-columns: 1fr;
    }

    .header-actions {
        display: none; /* Hide badge role on very small screens */
    }

    .tabs-navigation {
        flex-direction: column;
        gap: 8px;
    }

    .tabs-navigation .tab-nav-btn {
        width: 100%;
        justify-content: center;
    }
}

/* ==========================================================================
   13. DataTables Custom Elegant Styling
   ========================================================================== */
.dataTables_wrapper {
    padding-top: 10px;
}
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter {
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius-sm);
    padding: 6px 12px;
    background-color: var(--color-bg-card);
    outline: none;
    transition: var(--transition-fast);
}
.dataTables_wrapper .dataTables_length select:focus,
.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(18, 109, 55, 0.1);
}
.dataTables_wrapper .dataTables_filter input {
    margin-left: 8px;
    width: 220px;
}
.dataTables_wrapper .dataTables_info {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    padding-top: 15px;
}
.dataTables_wrapper .dataTables_paginate {
    padding-top: 15px;
}
.dataTables_wrapper .dataTables_paginate .paginate_button {
    padding: 6px 12px !important;
    margin-left: 5px !important;
    border-radius: var(--border-radius-sm) !important;
    border: 1px solid transparent !important;
    font-size: 0.82rem !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: var(--transition-fast) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: var(--color-primary) !important;
    color: var(--color-text-on-dark) !important;
    border-color: var(--color-primary) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: rgba(18, 109, 55, 0.08) !important;
    color: var(--color-primary) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled,
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled:hover {
    background: transparent !important;
    color: rgba(0, 0, 0, 0.25) !important;
    cursor: default !important;
}

/* Details toggle column icon styling */
table.dataTable tbody td.dt-control {
    cursor: pointer;
    text-align: center;
    width: 40px;
    background: none !important;
}
table.dataTable tbody td.dt-control::before {
    content: "\f067" !important;
    font-family: "Font Awesome 6 Free" !important;
    font-weight: 900 !important;
    color: var(--color-primary) !important;
    font-size: 0.75rem !important;
    background: rgba(18, 109, 55, 0.08) !important;
    border: none !important;
    box-shadow: none !important;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50% !important;
    transition: var(--transition-fast) !important;
}
table.dataTable tbody tr.dt-hasChild td.dt-control::before,
table.dataTable tbody tr.parent td.dt-control::before {
    content: "\f068" !important;
    color: var(--color-danger) !important;
    background: rgba(231, 76, 60, 0.1) !important;
}

.child-row-details {
    padding: 16px;
    background-color: rgba(18, 109, 55, 0.02);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    box-shadow: inset var(--shadow-sm);
    border: 1px solid rgba(0,0,0,0.03);
    margin: 8px 0;
}
.child-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px 24px;
}
.child-grid div {
    display: flex;
    align-items: center;
    gap: 8px;
}
.code-tax {
    font-size: 0.8rem;
    background: #eef3f0;
    color: var(--color-primary);
    padding: 2px 6px;
    border-radius: 4px;
}

/* ==========================================================================
   14. Responsive Table Column Hiding
   - col-hide-sm : ẩn trên tablet/mobile (≤ 768px) — bấm + để xem trong child row
   - col-hide-xs : ẩn chỉ trên mobile nhỏ (≤ 480px)
   - child-row-mobile-sm/-xs : NGƯỢC LẠI của col-hide-sm/-xs — dùng cho nội dung
     trong "child row" (ô mở rộng khi bấm +) đang LẶP LẠI dữ liệu của 1 cột đã bị
     col-hide-sm/-xs ẩn. Mặc định ẨN (desktop đã có sẵn cột đó rồi, hiện thêm lần
     nữa trong child row là dư thừa) — chỉ HIỆN đúng lúc cột gốc bị ẩn, cùng
     breakpoint. VD: cột "Bên Bán (CTTV)" dùng col-hide-sm -> field tương ứng
     trong child row dùng child-row-mobile-sm để chỉ hiện ≤768px, khớp đúng lúc
     cột đó biến mất khỏi bảng.
   ========================================================================== */
.child-row-mobile-sm,
.child-row-mobile-xs {
    display: none;
}

/* Tablet & Mobile (≤ 768px): ẩn cột phụ, chỉ giữ tên + thao tác */
@media (max-width: 768px) {
    .child-row-mobile-sm {
        display: block;
    }

    .col-hide-sm,
    th.col-hide-sm,
    td.col-hide-sm {
        display: none !important;
    }

    /* Làm nổi bật nút +/- để người dùng biết có thể bấm */
    table.dataTable tbody td.dt-control::before {
        width: 28px !important;
        height: 28px !important;
        font-size: 0.85rem !important;
        background: rgba(18, 109, 55, 0.12) !important;
    }

    /* Header và filter bar xếp dọc trên mobile */
    .card-panel-header {
        flex-wrap: wrap;
        gap: 12px;
    }

    .card-panel-header > a,
    .card-panel-header > div:last-child {
        width: 100%;
    }

    .card-panel-header .btn-custom {
        justify-content: center;
        width: 100%;
    }

    .filter-bar {
        flex-direction: column;
        gap: 12px;
    }

    .filter-bar .filter-field {
        width: 100%;
        min-width: auto;
    }

    .filter-bar .btn-custom {
        width: 100%;
        justify-content: center;
    }

    /* Thu nhỏ padding ô trên mobile cho thoáng hơn */
    .table-custom td,
    .table-custom th {
        padding: 12px 10px;
        font-size: 0.84rem;
    }

    /* Gợi ý tap để xem thêm */
    .table-custom tbody tr td.dt-control {
        position: relative;
    }
    .table-custom tbody tr td.dt-control::after {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: 6px;
    }
}

/* Small Mobile (≤ 480px): ẩn thêm cột Trạng Thái */
@media (max-width: 480px) {
    .child-row-mobile-xs {
        display: block;
    }

    .col-hide-xs,
    th.col-hide-xs,
    td.col-hide-xs {
        display: none !important;
    }

    /* child-row: 1 cột dọc trên màn hình nhỏ */
    .child-grid {
        grid-template-columns: 1fr !important;
        gap: 8px !important;
    }

    /* DataTables search và length controls: xếp dọc */
    .dataTables_wrapper .dataTables_length,
    .dataTables_wrapper .dataTables_filter {
        width: 100%;
        text-align: left;
    }
    .dataTables_wrapper .dataTables_filter input {
        width: 100%;
        margin-left: 0;
        margin-top: 4px;
        display: block;
    }

    /* DataTables info + phân trang: mặc định float trái/phải + nút số trang không tự xuống dòng
       khiến hàng này rộng hơn màn hình, phải cuộn ngang riêng 1 khối (bug user báo trực tiếp trên
       /admin/contracts/buy, 95 dữ liệu nhiều số trang). Bỏ float, cho nút tự xuống dòng thay vì tràn
       ngang. */
    .dataTables_wrapper .dataTables_info,
    .dataTables_wrapper .dataTables_paginate {
        float: none !important;
        width: 100%;
        text-align: center;
    }

    .dataTables_wrapper .dataTables_paginate,
    .dataTables_wrapper .dataTables_paginate > span {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px;
    }

    .dataTables_wrapper .dataTables_paginate .paginate_button {
        margin-left: 0 !important;
    }

    /* Tránh chữ tràn ô bảng */
    .table-custom td {
        word-break: break-word;
        overflow-wrap: break-word;
    }

    /* Nút thao tác trên mobile: nhỏ gọn, căn giữa */
    .table-custom td .action-buttons {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
        justify-content: center;
    }

    .table-custom td .btn-custom.sm {
        width: 32px;
        height: 32px;
        padding: 0;
        justify-content: center;
    }
}

/* ==========================================================================
   15. Premium Action Dropdown Menu
   ========================================================================== */
.dropdown-action {
    position: relative;
    display: inline-block;
}

.btn-dropdown-trigger {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.btn-dropdown-trigger:hover {
    background-color: rgba(18, 109, 55, 0.08);
    color: var(--color-primary);
    border-color: rgba(18, 109, 55, 0.2);
    box-shadow: var(--shadow-sm);
}

.dropdown-menu-list {
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    background: #ffffff;
    border: 1px solid #e3e9f1;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(16, 27, 45, 0.12);
    min-width: 160px;
    z-index: 1000;
    display: none;
    flex-direction: column;
    padding: 6px;
    animation: dropdownFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.dropdown-menu-list.show {
    display: flex;
}

.dropdown-item-btn {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 8px 12px;
    font-size: 0.82rem;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #33485f;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    font-family: inherit;
}

.dropdown-item-btn:hover {
    background-color: #f5f7fb;
    color: var(--color-primary);
}

.dropdown-item-btn.danger:hover {
    background-color: rgba(214, 68, 60, 0.08);
    color: #d6443c;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   11. Select2 Premium Theme Styles
   ========================================================================== */

/* Default Select2 Selection (matches .form-control - 48px height) */
.select2-container--default .select2-selection--single {
    height: 48px !important;
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    border-radius: var(--border-radius-md) !important;
    background-color: var(--color-bg-card) !important;
    display: flex !important;
    align-items: center !important;
    transition: var(--transition-fast) !important;
}

.select2-container--default .select2-selection--single:focus,
.select2-container--default.select2-container--focus .select2-selection--single {
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 0 3px rgba(18, 109, 55, 0.15) !important;
    outline: none !important;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--color-text-main) !important;
    font-size: 0.9rem !important;
    padding-left: 16px !important;
    padding-right: 44px !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    width: 100% !important;
    box-sizing: border-box !important;
    display: block !important;
}

.select2-container--default .select2-selection--single .select2-selection__clear {
    position: absolute !important;
    right: 32px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    margin: 0 !important;
    padding: 0 !important;
    color: var(--color-text-muted) !important;
    font-size: 1.1rem !important;
    line-height: 1 !important;
    z-index: 1 !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 46px !important;
    right: 12px !important;
    z-index: 1 !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow b {
    border-color: var(--color-text-muted) transparent transparent transparent !important;
}

.select2-container--default.select2-container--open .select2-selection--single .select2-selection__arrow b {
    border-color: transparent transparent var(--color-text-muted) transparent !important;
}

/* Default Select2 Multiple Selection (matches .form-control) */
.select2-container--default .select2-selection--multiple {
    min-height: 48px !important;
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    border-radius: var(--border-radius-md) !important;
    background-color: var(--color-bg-card) !important;
    display: flex !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    padding: 4px 12px !important;
    box-sizing: border-box !important;
    transition: var(--transition-fast) !important;
}

.select2-container--default.select2-container--focus .select2-selection--multiple {
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 0 3px rgba(18, 109, 55, 0.15) !important;
    outline: none !important;
}

.select2-container--default .select2-selection--multiple .select2-selection__rendered {
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    gap: 6px !important;
    padding: 0 !important;
    margin: 0 !important;
    width: 100% !important;
    list-style: none !important;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice {
    background-color: rgba(18, 109, 55, 0.08) !important;
    border: 1px solid rgba(18, 109, 55, 0.15) !important;
    border-radius: 4px !important;
    color: var(--color-primary) !important;
    padding: 4px 10px !important;
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    margin: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice__remove {
    color: var(--color-danger) !important;
    border: none !important;
    background: none !important;
    font-weight: 700 !important;
    margin: 0 !important;
    padding: 0 !important;
    cursor: pointer !important;
    order: 2 !important; /* Put remove button after text */
}

.select2-container--default .select2-selection--multiple .select2-selection__choice__remove:hover {
    color: HSL(4, 80%, 50%) !important;
    background: none !important;
}

.select2-container--default .select2-selection--multiple .select2-search--inline {
    margin: 0 !important;
    flex-grow: 1 !important;
    display: inline-flex !important;
    align-items: center !important;
}

.select2-container--default .select2-selection--multiple .select2-search--inline .select2-search__field {
    margin: 0 !important;
    padding: 4px 0 !important;
    font-family: inherit !important;
    font-size: 0.9rem !important;
    color: var(--color-text-main) !important;
    width: 100% !important;
    background: transparent !important;
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

/* Adjust the clear button for multiple */
.select2-container--default .select2-selection--multiple .select2-selection__clear {
    margin-top: 0 !important;
    right: 12px !important;
    color: var(--color-text-muted) !important;
}

/* Filter Bar Overrides (height 38px) */
.filter-bar .select2-container--default .select2-selection--single {
    height: 38px !important;
    border-radius: 6px !important;
}

.filter-bar .select2-container--default .select2-selection--single .select2-selection__rendered {
    font-size: 0.88rem !important;
    padding-left: 10px !important;
}

.filter-bar .select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 36px !important;
    right: 10px !important;
}

/* Dropdown styling */
.select2-dropdown {
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
    border-radius: var(--border-radius-md) !important;
    box-shadow: var(--shadow-lg) !important;
    background-color: var(--color-bg-card) !important;
    z-index: 9999 !important;
    overflow: hidden !important;
}

.filter-bar .select2-dropdown {
    border-radius: 6px !important;
}

.select2-container--default .select2-search--dropdown {
    padding: 8px !important;
}

.select2-container--default .select2-search--dropdown .select2-search__field {
    border: 1px solid rgba(0, 0, 0, 0.12) !important;
    border-radius: var(--border-radius-sm) !important;
    outline: none !important;
    padding: 8px 12px !important;
    box-sizing: border-box !important;
}

.filter-bar .select2-search--dropdown .select2-search__field {
    border-radius: 4px !important;
    padding: 6px 10px !important;
    font-size: 0.85rem !important;
}

.select2-container--default .select2-search--dropdown .select2-search__field:focus {
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 0 3px rgba(18, 109, 55, 0.15) !important;
}

.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: var(--color-primary) !important;
    color: var(--color-text-on-dark) !important;
}

.select2-container--default .select2-results__option[aria-selected=true] {
    background-color: rgba(18, 109, 55, 0.08) !important;
    color: var(--color-primary) !important;
}

.select2-results__option {
    padding: 10px 16px !important;
    font-size: 0.9rem !important;
}

.filter-bar .select2-results__option {
    padding: 8px 12px !important;
    font-size: 0.88rem !important;
}