/* ======================================
   VKChuong Admin Panel - Modern CRM Layout
   Design: Dark Glassmorphism + Minimalist CRM
   ====================================== */

/* === Google Fonts === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* === CSS Custom Properties (Design Tokens) === */
:root {
  /* Primary palette - Indigo / Violet gradient */
  --primary-50:  #eef2ff;
  --primary-100: #e0e7ff;
  --primary-200: #c7d2fe;
  --primary-300: #a5b4fc;
  --primary-400: #818cf8;
  --primary-500: #6366f1;
  --primary-600: #4f46e5;
  --primary-700: #4338ca;
  --primary-800: #3730a3;
  --primary-900: #312e81;

  /* Neutral palette */
  --gray-25:  #fcfcfd;
  --gray-50:  #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --gray-950: #0a0f1a;

  /* Accent colors */
  --success:  #10b981;
  --success-light: #d1fae5;
  --warning:  #f59e0b;
  --warning-light: #fef3c7;
  --danger:   #ef4444;
  --danger-light: #fee2e2;
  --info:     #3b82f6;
  --info-light: #dbeafe;
  --teal:     #14b8a6;
  --violet:   #8b5cf6;
  --rose:     #f43f5e;
  --amber:    #f59e0b;

  /* Surfaces */
  --surface-sidebar: #0f1629;
  --surface-sidebar-hover: rgba(99, 102, 241, 0.08);
  --surface-sidebar-active: rgba(99, 102, 241, 0.15);
  --surface-body: #f0f2f5;
  --surface-card: #ffffff;
  --surface-card-hover: #f9fafb;
  --surface-header: #ffffff;
  --surface-overlay: rgba(0, 0, 0, 0.5);

  /* Text */
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --text-inverse: #ffffff;
  --text-sidebar: #94a3b8;
  --text-sidebar-active: #ffffff;

  /* Borders */
  --border-light: #e5e7eb;
  --border-medium: #d1d5db;
  --border-sidebar: rgba(255, 255, 255, 0.06);

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Spacing */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --header-height: 64px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--surface-body);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--primary-700);
}

ul, ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

img {
  max-width: 100%;
  height: auto;
}

/* === Layout Grid (Admin Shell) === */
.admin-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  min-height: 100vh;
  transition: grid-template-columns var(--transition-slow);
}

.admin-layout.sidebar-collapsed {
  grid-template-columns: var(--sidebar-collapsed) 1fr;
}

/* === Sidebar === */
.sidebar {
  grid-row: 1 / -1;
  grid-column: 1;
  background: var(--surface-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  z-index: 50;
  transition: width var(--transition-slow);
  overflow: hidden;
}

.sidebar-collapsed .sidebar {
  width: var(--sidebar-collapsed);
}

/* Sidebar Brand */
.sidebar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  height: var(--header-height);
  border-bottom: 1px solid var(--border-sidebar);
  flex-shrink: 0;
}

.sidebar__brand-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  object-fit: contain;
  flex-shrink: 0;
}

.sidebar__brand-text {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-inverse);
  white-space: nowrap;
  overflow: hidden;
  letter-spacing: -0.02em;
}

.sidebar-collapsed .sidebar__brand-text {
  opacity: 0;
  width: 0;
}

/* Sidebar Navigation */
.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.sidebar__nav::-webkit-scrollbar {
  width: 4px;
}

.sidebar__nav::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar__nav::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
}

.sidebar__section-title {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 16px 12px 8px;
  white-space: nowrap;
  overflow: hidden;
}

.sidebar-collapsed .sidebar__section-title {
  text-align: center;
  font-size: 0;
}
.sidebar-collapsed .sidebar__section-title::after {
  content: '•••';
  font-size: 0.625rem;
  color: var(--gray-600);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  color: var(--text-sidebar);
  font-size: 0.875rem;
  font-weight: 450;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
  text-decoration: none;
}

.nav-link:hover {
  background: var(--surface-sidebar-hover);
  color: var(--text-sidebar-active);
}

.nav-link.active,
.nav-link.bg-main-color {
  background: var(--surface-sidebar-active);
  color: var(--text-sidebar-active);
  font-weight: 500;
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  background: var(--primary-400);
  border-radius: 0 3px 3px 0;
}

.nav-link i {
  font-size: 1.125rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.8;
}

.nav-link:hover i {
  opacity: 1;
}

.nav-link span {
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-collapsed .nav-link span {
  display: none;
}

.sidebar-collapsed .nav-link {
  justify-content: center;
  padding: 10px;
}

/* Sub-menus */
.sidebar .submenu {
  position: static;
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  min-width: auto;
  max-width: none;
  padding: 0;
  margin: 0 0 0 0 !important;
}

.sidebar .submenu .nav-link {
  padding-left: 46px;
  font-size: 0.8125rem;
  color: var(--gray-500);
}

.sidebar .submenu .nav-link::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gray-600);
  transition: background var(--transition-fast);
}

.sidebar .submenu .nav-link:hover::before {
  background: var(--primary-400);
}

.sidebar .submenu .nav-link i {
  display: none;
}

.sidebar .submenu .nav-link span {
  display: inline !important;
}

.sidebar-collapsed .sidebar .submenu {
  position: absolute;
  left: var(--sidebar-collapsed);
  top: 0;
  background: var(--surface-sidebar);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  min-width: 180px;
  padding: 8px;
  z-index: 100;
}

.sidebar-collapsed .sidebar .submenu .nav-link {
  padding-left: 12px;
  justify-content: flex-start;
}

.sidebar-collapsed .sidebar .submenu .nav-link span {
  display: inline !important;
}

.sidebar-collapsed .sidebar .submenu .nav-link::before {
  display: none;
}

/* Sidebar Footer / User */
.sidebar__footer {
  padding: 12px;
  border-top: 1px solid var(--border-sidebar);
  flex-shrink: 0;
  background: rgba(0, 0, 0, 0.15);
}

.sidebar__user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  text-decoration: none;
  color: var(--text-sidebar);
}

.sidebar__user:hover {
  background: var(--surface-sidebar-hover);
  color: var(--text-sidebar-active);
}

.sidebar__user-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-500), var(--violet));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.8125rem;
  font-weight: 600;
  flex-shrink: 0;
}

.sidebar__user-info {
  overflow: hidden;
  white-space: nowrap;
}

.sidebar__user-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-200);
}

.sidebar__user-role {
  font-size: 0.6875rem;
  color: var(--gray-500);
}

.sidebar-collapsed .sidebar__user-info {
  display: none;
}

/* Mobile sidebar */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--surface-overlay);
  z-index: 40;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.sidebar-overlay.active {
  display: block;
  opacity: 1;
}

/* === Header === */
.admin-header {
  grid-row: 1;
  grid-column: 2;
  background: var(--surface-header);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header-height);
}

.header__left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--gray-500);
  transition: all var(--transition-fast);
}

.header__toggle:hover {
  background: var(--gray-100);
  color: var(--gray-700);
}

.header__toggle svg {
  width: 20px;
  height: 20px;
}

/* Header Search */
.header__search {
  position: relative;
}

.header__search-input {
  width: 280px;
  padding: 8px 12px 8px 36px;
  background: var(--gray-50);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  outline: none;
  font-family: inherit;
}

.header__search-input::placeholder {
  color: var(--gray-400);
}

.header__search-input:focus {
  width: 360px;
  background: var(--surface-card);
  border-color: var(--primary-300);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.header__search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
  pointer-events: none;
}

.header__search-icon svg {
  width: 16px;
  height: 16px;
}

/* Header Right */
.header__right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  background: transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--gray-500);
  position: relative;
  transition: all var(--transition-fast);
}

.header__icon-btn:hover {
  background: var(--gray-100);
  color: var(--gray-700);
}

.header__icon-btn svg {
  width: 20px;
  height: 20px;
}

.header__badge {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid var(--surface-header);
}

.header__avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-500), var(--violet));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: box-shadow var(--transition-fast);
}

.header__avatar:hover {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* === Main Content Area === */
.admin-main {
  grid-row: 2;
  grid-column: 2;
  padding: 24px;
  min-width: 0;
  max-width: 100%;
}

/* Page Header */
.page-header {
  margin-bottom: 24px;
}

.page-header__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin: 0;
}

.page-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
  font-weight: 400;
}

.page-header__breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

.page-header__breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
}

.page-header__breadcrumb a:hover {
  color: var(--primary-600);
}

.page-header__breadcrumb svg {
  width: 14px;
  height: 14px;
  opacity: 0.5;
}

/* === Cards === */
.card {
  background: var(--surface-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  transition: box-shadow var(--transition-fast);
}

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

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  background: var(--surface-card);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--text-primary);
  border-radius: 0;
}

.card-header:first-child {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--surface-card);
}

.card-body {
  padding: 20px;
}

.card-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-light);
  background: var(--gray-25);
}

/* === Stat Cards === */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all var(--transition-fast);
  cursor: default;
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.stat-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-card__icon svg {
  width: 22px;
  height: 22px;
}

.stat-card__icon.primary {
  background: var(--primary-50);
  color: var(--primary-600);
}

.stat-card__icon.success {
  background: var(--success-light);
  color: var(--success);
}

.stat-card__icon.warning {
  background: var(--warning-light);
  color: var(--warning);
}

.stat-card__icon.danger {
  background: var(--danger-light);
  color: var(--danger);
}

.stat-card__icon.info {
  background: var(--info-light);
  color: var(--info);
}

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

.stat-card__label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 4px;
}

.stat-card__value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.stat-card__trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 4px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.stat-card__trend.up {
  color: var(--success);
  background: var(--success-light);
}

.stat-card__trend.down {
  color: var(--danger);
  background: var(--danger-light);
}

.stat-card__trend svg {
  width: 14px;
  height: 14px;
}

/* === Tables === */
.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.data-table thead th {
  padding: 10px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--gray-50);
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
  text-align: left;
}

.data-table thead th:first-child {
  border-radius: var(--radius-md) 0 0 0;
}

.data-table thead th:last-child {
  border-radius: 0 var(--radius-md) 0 0;
}

.data-table tbody td {
  padding: 12px 16px;
  font-size: 0.875rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
  background: var(--gray-25);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* Also style Bootstrap tables */
.table {
  border-collapse: separate;
  border-spacing: 0;
}

.table thead th {
  padding: 10px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--gray-50);
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
  border-top: none;
}

.table tbody td {
  padding: 12px 16px;
  font-size: 0.875rem;
  vertical-align: middle;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-light);
}

.table tbody tr:hover {
  background: var(--gray-25);
}

.table-light, .table-light th {
  background: var(--gray-50) !important;
}

/* === Buttons (Override Bootstrap) === */
.btn {
  font-family: 'Inter', sans-serif;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  line-height: 1.5;
  white-space: nowrap;
}

.btn:hover {
  box-shadow: none;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary,
.btn-primary:hover,
.btn-primary:focus {
  background: var(--primary-600);
  border-color: var(--primary-600);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-700);
  border-color: var(--primary-700);
}

.btn-success,
.btn-success:hover,
.btn-success:focus {
  background: var(--success);
  border-color: var(--success);
  color: white;
}

.btn-success:hover {
  background: #059669;
  border-color: #059669;
}

.btn-danger,
.btn-danger:hover,
.btn-danger:focus {
  background: var(--danger);
  border-color: var(--danger);
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
}

.btn-warning,
.btn-warning:hover,
.btn-warning:focus {
  background: var(--warning);
  border-color: var(--warning);
  color: white;
}

.btn-info,
.btn-info:hover,
.btn-info:focus {
  background: var(--info);
  border-color: var(--info);
  color: white;
}

.btn-outline-primary {
  border-color: var(--primary-200);
  color: var(--primary-600);
  background: transparent;
}

.btn-outline-primary:hover {
  background: var(--primary-50);
  border-color: var(--primary-300);
  color: var(--primary-700);
}

.btn-outline-secondary {
  border-color: var(--gray-200);
  color: var(--text-secondary);
  background: transparent;
}

.btn-outline-secondary:hover {
  background: var(--gray-50);
  border-color: var(--gray-300);
  color: var(--text-primary);
}

.btn-outline-info {
  border-color: var(--info-light);
  color: var(--info);
  background: transparent;
}

.btn-outline-info:hover {
  background: var(--info-light);
  border-color: var(--info);
  color: var(--info);
}

.btn-outline-danger {
  border-color: var(--danger-light);
  color: var(--danger);
  background: transparent;
}

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

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

.btn-ghost:hover {
  background: var(--gray-100);
  color: var(--text-primary);
}

.btn-sm {
  font-size: 0.75rem;
  padding: 5px 12px;
}

.btn-group .btn {
  border-radius: 0;
}

.btn-group .btn:first-child {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.btn-group .btn:last-child {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* === Form Controls (Override Bootstrap) === */
.form-control,
.form-select {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  color: var(--text-primary);
  background: var(--surface-card);
  transition: all var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-300);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  outline: none;
}

.form-control::placeholder {
  color: var(--gray-400);
}

.form-control-sm,
.form-select-sm {
  font-size: 0.8125rem;
  padding: 6px 10px;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.form-check-input:checked {
  background-color: var(--primary-600);
  border-color: var(--primary-600);
}

/* Toggle Switch */
.form-switch .form-check-input {
  height: 1.25rem;
  width: 2.25rem;
  border-radius: var(--radius-full);
}

/* === Badge (new) === */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-pill.success {
  background: var(--success-light);
  color: var(--success);
}

.badge-pill.warning {
  background: var(--warning-light);
  color: #d97706;
}

.badge-pill.danger {
  background: var(--danger-light);
  color: var(--danger);
}

.badge-pill.info {
  background: var(--info-light);
  color: var(--info);
}

.badge-pill.neutral {
  background: var(--gray-100);
  color: var(--gray-600);
}

/* === Alerts (Override Bootstrap) === */
.alert {
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  padding: 12px 16px;
}

.alert-success {
  background: var(--success-light);
  color: #065f46;
}

.alert-danger {
  background: var(--danger-light);
  color: #991b1b;
}

.alert-info {
  background: var(--info-light);
  color: #1e40af;
}

.alert-warning {
  background: var(--warning-light);
  color: #92400e;
}

/* === Notification Box === */
.notification-box {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 9999;
  max-width: 400px;
}

.notification-box .alert {
  margin-bottom: 8px;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* === Pop / Modal (Override existing) === */
#dim {
  display: none;
  position: fixed;
  z-index: 9998;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.pop {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--surface-card);
  border-radius: var(--radius-xl);
  padding: 24px;
  z-index: 9999;
  box-shadow: var(--shadow-xl);
  max-width: 440px;
  width: 90%;
}

.pop .modal-content {
  border: none;
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.pop .btn {
  min-width: 100px;
}

/* === Dropdown Menus (Override Bootstrap) === */
.dropdown-menu {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 4px;
  font-size: 0.8125rem;
}

.dropdown-item {
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 0.8125rem;
  font-weight: 450;
  transition: all var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: var(--gray-50);
  color: var(--text-primary);
}

.dropdown-divider {
  border-color: var(--border-light);
  margin: 4px 0;
}

.dropdown-menu-dark {
  background: var(--surface-sidebar);
  border-color: var(--border-sidebar);
}

.dropdown-menu-dark .dropdown-item {
  color: var(--text-sidebar);
}

.dropdown-menu-dark .dropdown-item:hover {
  background: var(--surface-sidebar-hover);
  color: var(--text-sidebar-active);
}

/* === Footer === */
.admin-footer {
  padding: 16px 0;
  margin-top: 24px;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.admin-footer a {
  color: var(--text-secondary);
  font-weight: 500;
}

.admin-footer a:hover {
  color: var(--primary-600);
}

/* === Login Page === */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--surface-sidebar) 50%, var(--primary-900) 100%);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 80%;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.login-page::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -20%;
  width: 60%;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.login-card {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.login-card__logo {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.login-card__logo img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
}

.login-card__title {
  text-align: center;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-inverse);
  margin-bottom: 4px;
}

.login-card__subtitle {
  text-align: center;
  font-size: 0.875rem;
  color: var(--gray-400);
  margin-bottom: 32px;
}

.login-card .form-control {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text-inverse);
  padding: 12px 16px;
  font-size: 0.875rem;
}

.login-card .form-control::placeholder {
  color: var(--gray-500);
}

.login-card .form-control:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.login-card .form-label {
  color: var(--gray-300);
  font-weight: 500;
  font-size: 0.8125rem;
}

.login-card .btn-login {
  width: 100%;
  background: linear-gradient(135deg, var(--primary-500), var(--violet));
  border: none;
  color: white;
  padding: 12px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.login-card .btn-login:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

/* === Pagination (Override) === */
.pagination .btn {
  min-width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 500;
}

.pagination .bg-main-color {
  background: var(--primary-600) !important;
  color: white !important;
  border-color: var(--primary-600) !important;
}

.text-link {
  color: var(--text-secondary) !important;
}

.text-link:hover {
  color: var(--primary-600) !important;
  background: var(--primary-50) !important;
}

/* === Utility Colors (Overrides) === */
.bg-main-color { background-color: var(--primary-600) !important; }
.bg-green { background-color: var(--success) !important; }
.bg-teal { background-color: var(--teal) !important; }
.bg-danger { background-color: var(--danger) !important; }
.bg-info { background-color: var(--info) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-dark { background-color: var(--gray-800) !important; }

.text-main-color { color: var(--primary-600) !important; }

/* === Empty State === */
.empty-state {
  text-align: center;
  padding: 60px 24px;
}

.empty-state__icon {
  width: 64px;
  height: 64px;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--gray-400);
}

.empty-state__icon svg {
  width: 28px;
  height: 28px;
}

.empty-state__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.empty-state__text {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }

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

  .admin-header {
    grid-column: 1;
  }

  .admin-main {
    grid-column: 1;
    padding: 16px;
  }

  .header__search-input {
    width: 200px;
  }

  .header__search-input:focus {
    width: 200px;
  }
}

@media (max-width: 640px) {
  .stat-grid {
    grid-template-columns: 1fr;
  }

  .page-header__top {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .header__search {
    display: none;
  }

  .admin-main {
    padding: 12px;
  }

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

/* === Animations === */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.content-animate {
  animation: fadeIn 0.3s ease-out;
}

/* === Misc / Global Override === */
.bold, .fw-bold {
  font-weight: 600 !important;
}

.square {
  border-radius: var(--radius-md) !important;
}

.break-line {
  height: 2px;
  background: var(--border-light);
  border: none;
}

/* Forms row layout override */
.form .row {
  margin-bottom: 0;
}

.form .row + .row {
  margin-top: 12px;
}

/* Scrollbar for content */
.admin-main::-webkit-scrollbar {
  width: 6px;
}

.admin-main::-webkit-scrollbar-track {
  background: transparent;
}

.admin-main::-webkit-scrollbar-thumb {
  background: var(--gray-200);
  border-radius: 3px;
}

/* prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}