/* ============================================
   LabSync - Epic Beaker Clinical Design System
   Flat, dense, clinical. No rounded corners,
   no gradients, no shadows. Sharp & professional.
   ============================================ */

/* --------------------------------------------
   CSS Custom Properties
   -------------------------------------------- */
:root {
    --bg-body: #ecf0f1;
    --bg-card: #ffffff;
    --border-color: #d5dbdb;
    --border-light: #eaeded;
    --sidebar-bg: #1e2a3a;
    --sidebar-hover: #2a3a4e;
    --sidebar-active-border: #3498db;
    --navbar-bg: #1a3c5e;
    --navbar-accent: #c0392b;
    --primary: #2980b9;
    --primary-hover: #2471a3;
    --primary-rgb: 41, 128, 185;
    --success: #27ae60;
    --warning: #e67e22;
    --danger: #c0392b;
    --purple: #8e44ad;
    --text-primary: #2c3e50;
    --text-secondary: #5d6d7e;
    --text-muted: #95a5a6;
    --sidebar-width: 220px;
    --navbar-height: 40px;
    --stock-adequate: #27ae60;
    --stock-low: #e67e22;
    --stock-critical: #e67e22;
    --stock-out: #c0392b;
}

/* --------------------------------------------
   Base Styles
   -------------------------------------------- */
body {
    background-color: var(--bg-body);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 13px;
    color: var(--text-primary);
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-hover);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
}

h4 {
    font-size: 16px;
    text-transform: uppercase;
}

/* --------------------------------------------
   Top Navbar
   -------------------------------------------- */
#topNav {
    z-index: 1030;
    height: var(--navbar-height);
    background-color: var(--navbar-bg) !important;
    border-bottom: 3px solid var(--navbar-accent);
    box-shadow: none;
    padding: 0;
}

#topNav .container-fluid {
    padding-top: 0;
    padding-bottom: 0;
}

#topNav .navbar-brand {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff !important;
    padding: 0;
    line-height: var(--navbar-height);
}

#topNav .navbar-brand i {
    color: var(--sidebar-active-border);
}

#topNav .nav-link {
    font-size: 12px;
    padding: 0 10px;
    line-height: var(--navbar-height);
    color: rgba(255,255,255,0.75) !important;
}

#topNav .nav-link:hover {
    color: #fff !important;
}

#topNav .form-control {
    border-radius: 3px;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 12px;
    height: 28px;
    padding: 2px 10px;
}

#topNav .form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

#topNav .form-control:focus {
    background-color: #fff;
    color: var(--text-primary);
    border-color: #fff;
    box-shadow: none;
}

#topNav .form-control:focus::placeholder {
    color: var(--text-muted);
}

#topNav .btn-light {
    border-radius: 0 3px 3px 0;
    height: 28px;
    padding: 2px 8px;
    font-size: 12px;
}

#topNav .role-badge {
    background: rgba(255,255,255,0.08);
    border-radius: 3px;
    padding: 2px 8px;
    font-size: 10px;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#sidebarToggle {
    text-decoration: none;
    padding: 0 8px;
    border: none;
    line-height: var(--navbar-height);
    transition: opacity 0.12s ease;
    font-size: 18px;
}

#sidebarToggle:hover {
    opacity: 0.8;
}

.navbar .dropdown-menu {
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
    border-radius: 3px;
    font-size: 12px;
    padding: 4px 0;
}

.navbar .dropdown-item {
    padding: 5px 14px;
    font-size: 12px;
}

.navbar .badge {
    font-size: 9px;
    padding: 2px 5px;
    border-radius: 2px;
}

/* Navbar alert badge */
#topNav .position-absolute.badge {
    font-size: 9px;
    padding: 1px 4px;
    border-radius: 2px;
}

/* --------------------------------------------
   Sidebar
   -------------------------------------------- */
.sidebar {
    position: fixed;
    top: calc(var(--navbar-height) + 3px);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    overflow-y: auto;
    overflow-x: hidden;
    transition: width 0.15s ease;
    z-index: 1020;
    border-right: none;
}

.sidebar.sidebar-collapsed {
    width: 0;
    overflow: hidden;
}

.sidebar-content {
    width: var(--sidebar-width);
    min-height: 100%;
    padding-bottom: 2rem;
}

.sidebar .nav-link {
    color: #8899aa;
    padding: 9px 16px;
    font-size: 12px;
    display: flex;
    align-items: center;
    border-left: 3px solid transparent;
    transition: all 0.12s ease;
    white-space: nowrap;
}

.sidebar .nav-link:hover {
    color: #ecf0f1;
    background-color: var(--sidebar-hover);
    border-left-color: transparent;
}

.sidebar .nav-link.active {
    color: #ecf0f1;
    background-color: rgba(52,152,219,0.15);
    border-left-color: var(--sidebar-active-border);
    font-weight: 600;
}

.sidebar .nav-link i {
    font-size: 14px;
    width: 18px;
    text-align: center;
}

.sidebar .nav-section .nav-link {
    padding: 18px 16px 6px;
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 700;
    color: #5a6d7e;
    border-left-color: transparent;
    cursor: default;
}

.sidebar .nav-section .nav-link:hover {
    background-color: transparent;
    border-left-color: transparent;
    color: #5a6d7e;
}

.sidebar .badge {
    font-size: 9px;
    padding: 2px 5px;
    border-radius: 2px;
    font-weight: 700;
    text-transform: uppercase;
}

.sidebar .nav-link .badge {
    margin-left: auto;
}

/* Sidebar Scrollbar */
.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-track {
    background: var(--sidebar-bg);
}

.sidebar::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* --------------------------------------------
   Main Content
   -------------------------------------------- */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: calc(var(--navbar-height) + 3px);
    min-height: calc(100vh - var(--navbar-height) - 3px);
    transition: margin-left 0.15s ease;
}

.main-content .container-fluid {
    padding: 20px;
}

.main-content.sidebar-collapsed {
    margin-left: 0;
}

/* --------------------------------------------
   Cards - Flat, no shadow
   -------------------------------------------- */
.card {
    border: 1px solid var(--border-color);
    border-radius: 3px;
    box-shadow: none;
    background-color: var(--bg-card);
    transition: none;
}

.card:hover {
    box-shadow: none;
}

.card-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    padding: 10px 16px;
    border-radius: 3px 3px 0 0 !important;
}

.card-header h5,
.card-header h6 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0;
}

.card-body {
    padding: 16px;
}

.card-footer {
    background-color: #f8f9fa;
    border-top: 1px solid var(--border-light);
    border-radius: 0 0 3px 3px !important;
    padding: 10px 16px;
}

/* Shadow-sm override - make flat */
.shadow-sm {
    box-shadow: none !important;
}

.shadow {
    box-shadow: none !important;
}

.shadow-lg {
    box-shadow: 0 1px 2px rgba(0,0,0,0.06) !important;
}

/* --------------------------------------------
   Stat Cards (Dashboard)
   -------------------------------------------- */
.stat-card {
    border: 1px solid var(--border-color);
    border-radius: 3px;
    box-shadow: none;
    transition: background-color 0.12s ease;
    overflow: hidden;
}

.stat-card:hover {
    transform: none;
    box-shadow: none;
    background-color: #f8f9fa;
}

.stat-card a {
    color: inherit;
    text-decoration: none;
}

.stat-card a:hover {
    color: inherit;
}

.stat-card .card-body {
    padding: 14px 16px;
}

.stat-card .stat-icon {
    width: 42px;
    height: 42px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.stat-card .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

.stat-card .stat-label {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
}

.stat-card .text-muted.small {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --------------------------------------------
   Tables - Dense, clinical
   -------------------------------------------- */
.table {
    margin-bottom: 0;
    font-size: 12.5px;
    border-radius: 0;
}

.table thead th {
    background-color: #f8f9fa;
    border-bottom: 2px solid var(--border-color);
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 10.5px;
    letter-spacing: 0.5px;
    padding: 6px 10px;
    white-space: nowrap;
}

.table tbody td {
    padding: 6px 10px;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-light);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.01);
}

.table-hover tbody tr:hover {
    background-color: #f4f6f8;
}

.table-light {
    background-color: #f8f9fa !important;
}

th[data-sort] {
    cursor: pointer;
    user-select: none;
    position: relative;
}

th[data-sort]:hover {
    background-color: #eef1f3;
}

th[data-sort]::after {
    content: '\F282';
    font-family: 'bootstrap-icons';
    margin-left: 4px;
    opacity: 0.3;
    font-size: 9px;
}

th.sort-asc::after {
    content: '\F235';
    opacity: 0.8;
}

th.sort-desc::after {
    content: '\F229';
    opacity: 0.8;
}

/* --------------------------------------------
   Stock Status Colors
   -------------------------------------------- */
.bg-stock-adequate { background-color: var(--stock-adequate) !important; color: #fff; }
.bg-stock-low { background-color: var(--stock-low) !important; color: #fff; }
.bg-stock-critical { background-color: var(--stock-critical) !important; color: #fff; }
.bg-stock-out { background-color: var(--stock-out) !important; color: #fff; }
.text-stock-adequate { color: var(--stock-adequate) !important; }
.text-stock-low { color: var(--stock-low) !important; }
.text-stock-critical { color: var(--stock-critical) !important; }
.text-stock-out { color: var(--stock-out) !important; }

/* --------------------------------------------
   Expiry Status Colors
   -------------------------------------------- */
.bg-expiry-valid { background-color: var(--success) !important; color: #fff; }
.bg-expiry-near { background-color: var(--warning) !important; color: #fff; }
.bg-expiry-soon { background-color: var(--warning) !important; color: #fff; }
.bg-expiry-expired { background-color: var(--danger) !important; color: #fff; }

/* --------------------------------------------
   Badges - Flat, square, uppercase
   -------------------------------------------- */
.badge {
    font-weight: 700;
    font-size: 10px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    border-radius: 2px;
    padding: 3px 6px;
}

.badge-status-active { background-color: var(--success); color: #fff; }
.badge-status-inactive { background-color: var(--text-secondary); color: #fff; }
.badge-status-pending { background-color: var(--warning); color: #fff; }
.badge-status-approved { background-color: var(--primary); color: #fff; }
.badge-status-ordered { background-color: var(--purple); color: #fff; }
.badge-status-received { background-color: var(--success); color: #fff; }
.badge-status-cancelled { background-color: var(--danger); color: #fff; }

/* Bootstrap badge overrides */
.bg-primary { background-color: var(--primary) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-warning { background-color: var(--warning) !important; color: #fff !important; }
.bg-danger { background-color: var(--danger) !important; }
.bg-info { background-color: var(--primary) !important; }
.bg-secondary { background-color: var(--text-secondary) !important; }

.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-info { color: var(--primary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-secondary { color: var(--text-secondary) !important; }

/* Dashboard hover helpers */
.hover-bg-light:hover { background-color: #f4f6f8; }

/* Department Catalog */
.dept-catalog-card {
    transition: background-color 0.12s ease;
    border-left: 3px solid var(--primary);
}
.dept-catalog-card:hover {
    background-color: #f8f9fa;
    transform: none;
    box-shadow: none;
}

/* --------------------------------------------
   Forms - Compact, clinical
   -------------------------------------------- */
.form-control,
.form-select {
    font-size: 13px;
    border-radius: 3px;
    border: 1px solid var(--border-color);
    height: 38px;
    padding: 6px 10px;
    color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--primary-rgb), 0.15);
}

.form-control-lg {
    height: 42px;
    font-size: 14px;
}

.form-control-sm {
    height: 30px;
    font-size: 12px;
    padding: 2px 8px;
}

.form-label {
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.input-group-text {
    font-size: 12px;
    background-color: #f8f9fa;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    color: var(--text-secondary);
}

.form-text {
    font-size: 11px;
    color: var(--text-muted);
}

.form-check-label {
    font-size: 13px;
}

textarea.form-control {
    height: auto;
}

.required-field::after {
    content: " *";
    color: var(--danger);
}

/* --------------------------------------------
   Buttons - Square, uppercase, bold
   -------------------------------------------- */
.btn {
    font-size: 13px;
    border-radius: 3px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 6px 14px;
    transition: all 0.12s ease;
}

.btn-sm {
    font-size: 11px;
    padding: 3px 8px;
}

.btn-lg {
    font-size: 14px;
    padding: 8px 20px;
}

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

.btn-success {
    background-color: var(--success);
    border-color: var(--success);
}
.btn-success:hover {
    background-color: #229954;
    border-color: #229954;
}

.btn-danger {
    background-color: var(--danger);
    border-color: var(--danger);
}
.btn-danger:hover {
    background-color: #a93226;
    border-color: #a93226;
}

.btn-warning {
    background-color: var(--warning);
    border-color: var(--warning);
    color: #fff;
}
.btn-warning:hover {
    background-color: #d35400;
    border-color: #d35400;
    color: #fff;
}

.btn-secondary {
    background-color: var(--text-secondary);
    border-color: var(--text-secondary);
}

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

.btn-outline-danger {
    color: var(--danger);
    border-color: var(--danger);
}
.btn-outline-danger:hover {
    background-color: var(--danger);
    color: #fff;
}

.btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--border-color);
}
.btn-outline-secondary:hover {
    background-color: var(--text-secondary);
    color: #fff;
}

.btn-light {
    background-color: #f8f9fa;
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* --------------------------------------------
   Alerts
   -------------------------------------------- */
.alert {
    border-radius: 3px;
    border: 1px solid;
    font-size: 12px;
    padding: 8px 12px;
}

.alert-success {
    background-color: #d5f5e3;
    color: #1e8449;
    border-color: #abebc6;
    border-left: 3px solid var(--success);
}

.alert-danger {
    background-color: #fadbd8;
    color: #922b21;
    border-color: #f5b7b1;
    border-left: 3px solid var(--danger);
}

.alert-warning {
    background-color: #fdebd0;
    color: #935116;
    border-color: #f9e79f;
    border-left: 3px solid var(--warning);
}

.alert-info {
    background-color: #d4effc;
    color: #1a5276;
    border-color: #aed6f1;
    border-left: 3px solid var(--primary);
}

/* --------------------------------------------
   Breadcrumb
   -------------------------------------------- */
.breadcrumb {
    background: none;
    padding: 0;
    margin-bottom: 12px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.breadcrumb-item a {
    color: var(--primary);
}

.breadcrumb-item.active {
    color: var(--text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
    font-size: 10px;
}

/* --------------------------------------------
   Pagination
   -------------------------------------------- */
.page-link {
    color: var(--primary);
    font-size: 12px;
    border-radius: 2px;
    margin: 0 1px;
    padding: 4px 10px;
    border: 1px solid var(--border-color);
}

.page-item.active .page-link {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* --------------------------------------------
   Toast
   -------------------------------------------- */
.toast {
    border-radius: 3px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
    font-size: 12px;
    background-color: #fff;
    border: 1px solid var(--border-color);
}

.toast-body {
    padding: 8px 12px;
}

/* --------------------------------------------
   Modal - Flat, square
   -------------------------------------------- */
.modal-content {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.modal-header {
    border-radius: 4px 4px 0 0;
    padding: 10px 16px;
}

.modal-body {
    padding: 16px;
}

.modal-footer {
    padding: 10px 16px;
    border-top: 1px solid var(--border-light);
}

/* --------------------------------------------
   Nav Tabs - Square
   -------------------------------------------- */
.nav-tabs {
    border-bottom: 2px solid var(--border-color);
}

.nav-tabs .nav-link {
    border-radius: 3px 3px 0 0;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 8px 16px;
    border: 1px solid transparent;
    color: var(--text-secondary);
}

.nav-tabs .nav-link.active {
    border-color: var(--border-color) var(--border-color) #fff;
    color: var(--text-primary);
}

.nav-tabs .nav-link:hover:not(.active) {
    border-color: transparent;
    background-color: #f4f6f8;
}

/* Nav pills */
.nav-pills .nav-link {
    border-radius: 3px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    padding: 6px 12px;
}

.nav-pills .nav-link.active {
    background-color: var(--primary);
}

/* --------------------------------------------
   Footer
   -------------------------------------------- */
.footer {
    border-top: 1px solid var(--border-color);
    font-size: 10px;
    color: var(--text-muted);
    background-color: var(--bg-body);
    padding: 8px 0;
}

/* --------------------------------------------
   Empty State
   -------------------------------------------- */
.empty-state {
    text-align: center;
    padding: 40px 16px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 2.5rem;
    opacity: 0.25;
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 13px;
    margin-bottom: 16px;
}

/* --------------------------------------------
   Utility Classes
   -------------------------------------------- */
.border-left-primary { border-left: 3px solid var(--primary) !important; }
.border-left-success { border-left: 3px solid var(--success) !important; }
.border-left-warning { border-left: 3px solid var(--warning) !important; }
.border-left-danger { border-left: 3px solid var(--danger) !important; }

.bg-primary-light { background-color: #d4effc !important; }
.text-teal { color: var(--primary) !important; }
.bg-teal-light { background-color: #d4effc !important; }

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cursor-pointer { cursor: pointer; }
.min-w-100 { min-width: 100px; }
.min-w-150 { min-width: 150px; }

/* FS overrides to match density */
.fs-1 { font-size: 2rem !important; }
.fs-2 { font-size: 1.5rem !important; }
.fs-3 { font-size: 1.25rem !important; }
.fs-4 { font-size: 1.1rem !important; }
.fs-5 { font-size: 0.95rem !important; }
.fs-6 { font-size: 0.8rem !important; }

.small, small { font-size: 11px; }

/* --------------------------------------------
   List Groups - Flat
   -------------------------------------------- */
.list-group-item {
    border: 1px solid var(--border-light);
    border-radius: 0;
    padding: 8px 14px;
    font-size: 12.5px;
}

.list-group-item:first-child { border-radius: 3px 3px 0 0; }
.list-group-item:last-child { border-radius: 0 0 3px 3px; }

.list-group-item-action:hover {
    background-color: #f4f6f8;
}

.list-group-item-danger {
    background-color: #fadbd8;
    border-color: #f5b7b1;
}

/* --------------------------------------------
   Accordion - Flat
   -------------------------------------------- */
.accordion-button {
    font-size: 13px;
    font-weight: 700;
    padding: 10px 16px;
    border-radius: 3px;
}

.accordion-item {
    border: 1px solid var(--border-color);
    border-radius: 3px;
}

/* --------------------------------------------
   Login Page Styles
   -------------------------------------------- */
.login-wrapper {
    min-height: 100vh;
    background-color: var(--bg-body);
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.login-header {
    background-color: var(--navbar-bg);
    border-bottom: 3px solid var(--navbar-accent);
    padding: 24px 28px;
    text-align: center;
}

.login-header .brand-icon {
    width: 48px;
    height: 48px;
    border-radius: 4px;
    background: rgba(255,255,255,0.1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}

.login-header .brand-icon i {
    font-size: 24px;
    color: #fff;
}

.login-header .brand-name {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    margin: 0;
    letter-spacing: 0.5px;
}

.login-header .brand-tagline {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255,255,255,0.55);
    margin-top: 4px;
}

.login-body {
    background: #fff;
    padding: 28px;
}

.login-footer {
    text-align: center;
    padding: 12px 28px;
    background: #f8f9fa;
    border-top: 1px solid var(--border-light);
    font-size: 10px;
    color: var(--text-muted);
}

/* --------------------------------------------
   Error Page Styles
   -------------------------------------------- */
.error-card {
    width: 100%;
    max-width: 480px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.error-header {
    padding: 28px;
    text-align: center;
    color: #fff;
}

.error-header.error-404 { background-color: var(--navbar-bg); }
.error-header.error-403 { background-color: var(--danger); }
.error-header.error-500 { background-color: var(--warning); }

.error-header .error-icon {
    width: 64px;
    height: 64px;
    border-radius: 4px;
    background: rgba(255,255,255,0.15);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.error-header .error-icon i {
    font-size: 32px;
}

.error-header .error-code {
    font-size: 48px;
    font-weight: 800;
    line-height: 1;
}

.error-header .error-text {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.7;
    margin-top: 4px;
}

.error-body {
    background: #fff;
    padding: 28px;
    text-align: center;
}

/* --------------------------------------------
   Responsive Styles
   -------------------------------------------- */
@media (max-width: 991.98px) {
    .sidebar {
        width: 0;
        overflow: hidden;
        position: fixed;
        z-index: 1025;
    }

    .sidebar.show {
        width: var(--sidebar-width);
        box-shadow: 2px 0 8px rgba(0, 0, 0, 0.2);
    }

    .main-content {
        margin-left: 0 !important;
    }

    #sidebarToggle {
        display: block !important;
    }

    .navbar-brand {
        font-size: 13px;
    }
}

@media (max-width: 575.98px) {
    .stat-card .stat-value {
        font-size: 1.2rem;
    }

    .stat-card .stat-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .card-body {
        padding: 12px;
    }

    .table {
        font-size: 11px;
    }

    .main-content .container-fluid {
        padding: 12px;
    }
}

/* --------------------------------------------
   Print Overrides
   -------------------------------------------- */
@media print {
    .sidebar, #topNav, .no-print {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
        margin-top: 0 !important;
    }
}