/* ==========================================================================
   SEO COMPUTERS - Dark Theme Master Design System
   Palette:
   - Deep Obsidian / Navy: #0B132B (Main BG)
   - Dark Slate: #1C2541 (Cards & Surfaces)
   - Electric Blue: #0F62FE (Primary Accent)
   - Emerald Mint: #00D084 (Secondary Accent / Growth)
   - Pure White: #FFFFFF (Primary Text)
   - Cool Steel / Slate: #8D99AE (Muted Text & Borders)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --bg-main: #0B132B;
    --bg-surface: #1C2541;
    --bg-surface-elevated: #232f52;
    --bg-surface-hover: #2a375e;
    --primary-blue: #0F62FE;
    --primary-blue-hover: #0b4ec7;
    --primary-blue-glow: rgba(15, 98, 254, 0.35);
    --secondary-mint: #00D084;
    --secondary-mint-glow: rgba(0, 208, 132, 0.35);
    --text-primary: #FFFFFF;
    --text-muted: #8D99AE;
    --text-dim: #64748b;
    --border-color: rgba(141, 153, 174, 0.22);
    --border-highlight: rgba(15, 98, 254, 0.4);
    --danger-red: #ff4757;
    --warning-yellow: #ffa502;
    --info-cyan: #00d2d3;
    --sidebar-width: 270px;
    --topbar-height: 70px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 25px rgba(15, 98, 254, 0.25);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: #2b3960;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-blue);
}

/* Typography & Links */
a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: #4d8dfc;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.font-mono {
    font-family: 'JetBrains Mono', monospace;
}

.text-muted {
    color: var(--text-muted) !important;
}
.text-mint {
    color: var(--secondary-mint) !important;
}
.text-blue {
    color: var(--primary-blue) !important;
}

/* App Layout Wrapper */
.app-wrapper {
    display: flex;
    min-height: 100vh;
    position: relative;
    width: 100%;
}

/* Mobile Sidebar Backdrop Overlay */
.sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(4, 8, 18, 0.75);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1030;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-overflow-scrolling: touch;
}

.sidebar-brand {
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(11, 19, 43, 0.5);
    min-height: var(--topbar-height);
}

.sidebar-brand img {
    height: 34px;
    width: auto;
    object-fit: contain;
}

.sidebar-brand .brand-title {
    font-size: 1.12rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    line-height: 1.1;
}

.sidebar-brand .brand-subtitle {
    font-size: 0.62rem;
    color: var(--secondary-mint);
    letter-spacing: 1px;
    font-weight: 600;
    text-transform: uppercase;
}

.btn-sidebar-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    padding: 6px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-sidebar-close:hover {
    color: var(--danger-red);
    background: rgba(255, 71, 87, 0.15);
}

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    -webkit-overflow-scrolling: touch;
}

.menu-header {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
    font-weight: 700;
    padding: 12px 14px 6px;
}

.nav-item .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 500;
    min-height: 42px;
    transition: var(--transition);
}

.nav-item .nav-link i {
    font-size: 1.15rem;
    width: 24px;
    text-align: center;
    color: var(--text-muted);
    transition: var(--transition);
}

.nav-item .nav-link:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

.nav-item .nav-link:hover i {
    color: var(--secondary-mint);
    transform: scale(1.1);
}

.nav-item .nav-link.active {
    background: linear-gradient(90deg, rgba(15, 98, 254, 0.25), rgba(15, 98, 254, 0.05));
    border-left: 3px solid var(--primary-blue);
    color: var(--text-primary);
    font-weight: 600;
}

.nav-item .nav-link.active i {
    color: var(--primary-blue);
}

.sidebar-footer {
    padding: 14px 16px;
    border-top: 1px solid var(--border-color);
    background: rgba(11, 19, 43, 0.5);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    border: 2px solid var(--border-color);
    flex-shrink: 0;
}

/* Main Content Area */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0; /* Prevents flexbox overflow */
    background-color: var(--bg-main);
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Topbar Header */
.topbar {
    min-height: var(--topbar-height);
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1020;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    gap: 12px;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
    flex: 1;
}

.btn-icon-mobile {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
}

.page-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.header-btn {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    min-height: 38px;
}

.header-btn:hover {
    background: var(--bg-surface-hover);
    border-color: var(--primary-blue);
    color: var(--text-primary);
    box-shadow: 0 0 12px var(--primary-blue-glow);
}

.header-btn.pos-btn {
    background: linear-gradient(135deg, var(--primary-blue), #0b4ec7);
    border-color: var(--primary-blue);
    color: #ffffff;
    font-weight: 600;
}

.header-btn.pcbuilder-btn {
    background: linear-gradient(135deg, #059669, #00D084);
    border-color: var(--secondary-mint);
    color: #0B132B;
    font-weight: 700;
}

.notification-dropdown {
    width: 320px;
    max-width: calc(100vw - 24px);
    right: 0 !important;
    left: auto !important;
}

.user-dropdown-menu {
    width: 250px;
    max-width: calc(100vw - 24px);
    right: 0 !important;
    left: auto !important;
}

/* Page Body Container */
.page-body {
    padding: 24px 28px;
    flex: 1;
    min-width: 0;
}

/* Cards & Surfaces */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-subtle);
    color: var(--text-primary);
    margin-bottom: 24px;
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    border-color: rgba(141, 153, 174, 0.35);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.card-body {
    padding: 20px;
}

.card-footer {
    background-color: transparent;
    border-top: 1px solid var(--border-color);
    padding: 14px 20px;
}

/* Stat Widgets */
.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-blue);
}

.stat-card.mint::before {
    background: var(--secondary-mint);
}
.stat-card.yellow::before {
    background: var(--warning-yellow);
}
.stat-card.red::before {
    background: var(--danger-red);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
    border-color: var(--border-highlight);
}

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

.stat-info .stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.stat-info .stat-value {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    word-break: break-word;
}

.stat-info .stat-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(15, 98, 254, 0.15);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-card.mint .stat-icon {
    background: rgba(0, 208, 132, 0.15);
    color: var(--secondary-mint);
}

.stat-card.yellow .stat-icon {
    background: rgba(255, 165, 2, 0.15);
    color: var(--warning-yellow);
}

.stat-card.red .stat-icon {
    background: rgba(255, 71, 87, 0.15);
    color: var(--danger-red);
}

/* Form Controls */
.form-label {
    color: var(--text-muted);
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.form-control, .form-select {
    background-color: #121b33;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 9px 13px;
    font-size: 0.92rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    background-color: #15203d;
    border-color: var(--primary-blue);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px var(--primary-blue-glow);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-dim);
}

/* Select2 Dark Theme Support */
.select2-container {
    width: 100% !important;
}
.select2-container .select2-selection--single {
    background-color: #121b33 !important;
    border: 1px solid var(--border-color) !important;
    height: 42px !important;
    border-radius: var(--radius-sm) !important;
    display: flex !important;
    align-items: center !important;
}
.select2-container .select2-selection--single .select2-selection__rendered {
    color: var(--text-primary) !important;
    padding-left: 12px !important;
    line-height: normal !important;
}
.select2-container .select2-selection--single .select2-selection__arrow {
    height: 40px !important;
    right: 8px !important;
}
.select2-dropdown {
    background-color: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    box-shadow: var(--shadow-subtle) !important;
    z-index: 1060 !important;
}
.select2-container--default .select2-search--dropdown .select2-search__field {
    background-color: #121b33 !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    border-radius: var(--radius-sm) !important;
    padding: 6px 10px !important;
}
.select2-container--default .select2-results__option {
    padding: 8px 12px !important;
    color: var(--text-muted) !important;
}
.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: var(--primary-blue) !important;
    color: #ffffff !important;
}
.select2-container--default .select2-results__option[aria-selected="true"] {
    background-color: rgba(15, 98, 254, 0.25) !important;
    color: var(--text-primary) !important;
}

/* Buttons */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 8px 16px;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 38px;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.82rem;
    min-height: 32px;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
    min-height: 48px;
}

.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--primary-blue-hover);
    border-color: var(--primary-blue-hover);
    box-shadow: 0 0 15px var(--primary-blue-glow);
}

.btn-mint {
    background-color: var(--secondary-mint);
    border-color: var(--secondary-mint);
    color: #0B132B;
    font-weight: 700;
}

.btn-mint:hover {
    background-color: #02b371;
    border-color: #02b371;
    color: #0B132B;
    box-shadow: 0 0 15px var(--secondary-mint-glow);
}

.btn-secondary {
    background-color: var(--bg-surface-elevated);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--bg-surface-hover);
    border-color: var(--text-muted);
    color: var(--text-primary);
}

.btn-outline-primary {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}
.btn-outline-primary:hover {
    background-color: var(--primary-blue);
    color: #ffffff;
}

.btn-outline-mint {
    border-color: var(--secondary-mint);
    color: var(--secondary-mint);
}
.btn-outline-mint:hover {
    background-color: var(--secondary-mint);
    color: #0B132B;
}

/* Tables & Table Responsive */
.table-responsive {
    width: 100%;
    margin-bottom: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table-custom {
    width: 100%;
    margin-bottom: 0;
    color: var(--text-primary);
    border-collapse: separate;
    border-spacing: 0;
}

.table-custom th {
    background-color: #15203d;
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    border-top: none;
    white-space: nowrap;
}

.table-custom td {
    padding: 13px 16px;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
    background-color: transparent;
    font-size: 0.9rem;
}

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

.table-custom tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

/* Nav Pills Custom (Tabs) */
.nav-pills {
    gap: 8px;
    flex-wrap: wrap;
}

.nav-pills .nav-link {
    color: var(--text-muted);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    padding: 9px 18px;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-pills .nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-surface-hover);
    border-color: var(--border-highlight);
}

.nav-pills .nav-link.active {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    color: #ffffff;
    box-shadow: 0 0 12px var(--primary-blue-glow);
}

/* Badges */
.badge {
    padding: 5px 9px;
    font-weight: 600;
    font-size: 0.74rem;
    border-radius: 6px;
    letter-spacing: 0.3px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.badge-blue {
    background: rgba(15, 98, 254, 0.18);
    color: #4d8dfc;
    border: 1px solid rgba(15, 98, 254, 0.35);
}

.badge-mint {
    background: rgba(0, 208, 132, 0.18);
    color: var(--secondary-mint);
    border: 1px solid rgba(0, 208, 132, 0.35);
}

.badge-yellow {
    background: rgba(255, 165, 2, 0.18);
    color: var(--warning-yellow);
    border: 1px solid rgba(255, 165, 2, 0.35);
}

.badge-red {
    background: rgba(255, 71, 87, 0.18);
    color: var(--danger-red);
    border: 1px solid rgba(255, 71, 87, 0.35);
}

/* Modal Dark Theme */
.modal-dialog {
    margin: 1.75rem auto;
    max-width: 95%;
}

@media (min-width: 576px) {
    .modal-dialog {
        max-width: 500px;
    }
    .modal-dialog.modal-lg {
        max-width: 800px;
    }
    .modal-dialog.modal-xl {
        max-width: 1140px;
    }
}

.modal-content {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.modal-body {
    padding: 20px;
    max-height: calc(100vh - 160px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 10px;
}

.btn-close-white {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Alert Boxes */
.alert-custom {
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    font-size: 0.92rem;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid transparent;
}

.alert-custom-info {
    background: rgba(15, 98, 254, 0.12);
    border-color: rgba(15, 98, 254, 0.3);
    color: #60a5fa;
}

.alert-custom-success {
    background: rgba(0, 208, 132, 0.12);
    border-color: rgba(0, 208, 132, 0.3);
    color: #34d399;
}

.alert-custom-warning {
    background: rgba(255, 165, 2, 0.12);
    border-color: rgba(255, 165, 2, 0.3);
    color: #fbbf24;
}

.alert-custom-danger {
    background: rgba(255, 71, 87, 0.12);
    border-color: rgba(255, 71, 87, 0.3);
    color: #f87171;
}

/* DataTables Dark Override */
.dataTables_wrapper {
    position: relative;
    clear: both;
}

.dataTables_wrapper .dataTables_length, 
.dataTables_wrapper .dataTables_filter, 
.dataTables_wrapper .dataTables_info, 
.dataTables_wrapper .dataTables_paginate {
    color: var(--text-muted) !important;
    font-size: 0.85rem;
    margin: 12px 0;
}

.dataTables_wrapper .dataTables_length select {
    background-color: #121b33;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    margin: 0 6px;
}

.dataTables_wrapper .dataTables_filter input {
    background-color: #121b33;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    margin-left: 8px;
    min-width: 160px;
}

.dataTables_wrapper .dataTables_paginate {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: flex-end;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    color: var(--text-muted) !important;
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    border: 1px solid var(--border-color) !important;
    background: var(--bg-surface-elevated) !important;
    cursor: pointer;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--bg-surface-hover) !important;
    color: var(--text-primary) !important;
    border-color: var(--primary-blue) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current, 
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: var(--primary-blue) !important;
    color: #ffffff !important;
    border: 1px solid var(--primary-blue) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.disabled,
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled:hover {
    opacity: 0.4;
    cursor: not-allowed;
    background: transparent !important;
    border-color: var(--border-color) !important;
}

/* ==========================================================================
   Comprehensive Responsive Breakpoints (All Devices)
   ========================================================================== */

/* 1. Large Laptops & Desktops (max-width: 1199px) */
@media (max-width: 1199px) {
    :root {
        --sidebar-width: 250px;
    }
    .page-body {
        padding: 20px 22px;
    }
    .topbar {
        padding: 8px 20px;
    }
}

/* 2. Tablets & Small Laptops (max-width: 991px) */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.7);
    }
    .sidebar.show {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    .topbar {
        padding: 8px 16px;
    }
    .page-body {
        padding: 16px 16px;
    }
    .page-title {
        font-size: 1.05rem;
    }
}

/* 3. Small Tablets & Phablets (max-width: 767px) */
@media (max-width: 767px) {
    :root {
        --topbar-height: 60px;
    }
    .page-body {
        padding: 14px 12px;
    }
    .card {
        margin-bottom: 16px;
        border-radius: var(--radius-sm);
    }
    .card-header, .card-body, .card-footer {
        padding: 14px 16px;
    }
    .stat-card {
        padding: 16px 14px;
    }
    .stat-info .stat-value {
        font-size: 1.4rem;
    }
    .stat-icon {
        width: 42px;
        height: 42px;
        font-size: 1.3rem;
    }
    
    /* DataTables mobile layout */
    .dataTables_wrapper .dataTables_length,
    .dataTables_wrapper .dataTables_filter {
        width: 100%;
        text-align: left;
        margin: 6px 0;
    }
    .dataTables_wrapper .dataTables_filter {
        display: flex;
        align-items: center;
    }
    .dataTables_wrapper .dataTables_filter input {
        width: 100%;
        margin-left: 0;
        margin-top: 4px;
    }
    .dataTables_wrapper .dataTables_info {
        text-align: center;
    }
    .dataTables_wrapper .dataTables_paginate {
        justify-content: center;
    }
    
    /* Nav tabs scroll */
    .nav-pills {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 6px;
        -webkit-overflow-scrolling: touch;
    }
    .nav-pills::-webkit-scrollbar {
        height: 3px;
    }
}

/* 4. Mobile Phones (max-width: 575px) */
@media (max-width: 575px) {
    /* Prevent iOS auto zoom on input focus */
    input[type="text"],
    input[type="number"],
    input[type="email"],
    input[type="password"],
    input[type="date"],
    select,
    textarea {
        font-size: 16px !important;
    }
    
    .topbar {
        padding: 6px 10px;
        gap: 8px;
    }
    .page-title {
        font-size: 0.95rem;
    }
    .topbar-right {
        gap: 6px;
    }
    .header-btn {
        padding: 6px 9px;
        font-size: 0.78rem;
    }
    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }
    .modal-header, .modal-body, .modal-footer {
        padding: 14px;
    }
    .modal-footer .btn {
        width: 100%;
    }
    .btn-group {
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
    }
    .btn-group > .btn {
        flex: 1 1 auto;
        border-radius: var(--radius-sm) !important;
    }
}

/* 5. Ultra-compact devices (max-width: 375px) */
@media (max-width: 375px) {
    .page-title span {
        max-width: 120px;
    }
    .header-btn span {
        display: none !important;
    }
    .stat-info .stat-value {
        font-size: 1.25rem;
    }
}