/* ============================================
   Admin Panel - Global Styles
   Theme: Indigo + Dark Slate
   ============================================ */

:root {
  --primary: #4F46E5;
  --primary-light: #818CF8;
  --primary-dark: #3730A3;
  --primary-bg: #EEF2FF;
  --sidebar-bg: #1E293B;
  --sidebar-hover: #334155;
  --sidebar-active: #4F46E5;
  --sidebar-text: #CBD5E1;
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --header-height: 64px;
  --bg: #F1F5F9;
  --card-bg: #FFFFFF;
  --border: #E2E8F0;
  --text: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --success: #10B981;
  --success-bg: #ECFDF5;
  --warning: #F59E0B;
  --warning-bg: #FFFBEB;
  --danger: #EF4444;
  --danger-bg: #FEF2F2;
  --info: #3B82F6;
  --info-bg: #EFF6FF;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
ul { list-style: none; }
img { max-width: 100%; }

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1E293B 0%, #312E81 50%, #1E293B 100%);
  padding: 20px;
}
.login-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}
.login-logo {
  text-align: center;
  margin-bottom: 32px;
}
.login-logo .icon {
  width: 56px; height: 56px;
  background: var(--primary);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.login-logo .icon svg { width: 32px; height: 32px; color: #fff; }
.login-logo h1 { font-size: 24px; color: var(--text); font-weight: 700; }
.login-logo p { color: var(--text-secondary); font-size: 14px; margin-top: 4px; }
.login-card .form-group { margin-bottom: 20px; }
.login-card label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}
.login-card input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  transition: var(--transition);
  outline: none;
}
.login-card input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.login-card .btn-login {
  width: 100%;
  padding: 12px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.login-card .btn-login:hover { background: var(--primary-dark); }
.login-card .login-error {
  color: var(--danger);
  font-size: 13px;
  text-align: center;
  margin-top: 12px;
  display: none;
}
.login-card .login-error.show { display: block; }
.login-card .login-hint {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
}
.login-card .login-hint code {
  background: var(--primary-bg);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--primary);
  font-weight: 600;
}

/* ============================================
   MAIN LAYOUT
   ============================================ */
.main-layout { display: none; min-height: 100vh; }
.main-layout.active { display: flex; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--sidebar-bg);
  position: fixed;
  top: 0; left: 0;
  z-index: 100;
  transition: width var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sidebar.collapsed { width: var(--sidebar-collapsed); }

.sidebar-brand {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}
.sidebar-brand .brand-icon {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sidebar-brand .brand-icon svg { width: 20px; height: 20px; color: #fff; }
.sidebar-brand .brand-text {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
}
.sidebar.collapsed .brand-text { opacity: 0; width: 0; }

.sidebar-nav {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
  overflow-x: hidden;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.nav-section { margin-bottom: 8px; }
.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: rgba(255,255,255,0.3);
  padding: 12px 12px 6px;
  white-space: nowrap;
  overflow: hidden;
}
.sidebar.collapsed .nav-section-title { opacity: 0; height: 0; padding: 0; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--sidebar-text);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  font-size: 14px;
  margin-bottom: 2px;
  position: relative;
}
.nav-item:hover { background: var(--sidebar-hover); color: #fff; }
.nav-item.active { background: var(--sidebar-active); color: #fff; }
.nav-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.nav-item .nav-label { overflow: hidden; }
.sidebar.collapsed .nav-label { opacity: 0; width: 0; }

.sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 12px;
}
.sidebar.collapsed .nav-item svg { margin: 0; }

.sidebar-toggle {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px; height: 36px;
  background: var(--sidebar-hover);
  border: none;
  border-radius: 50%;
  color: var(--sidebar-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.sidebar-toggle:hover { background: var(--sidebar-active); color: #fff; }
.sidebar-toggle svg { width: 18px; height: 18px; }

/* Header */
.main-header {
  height: var(--header-height);
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text);
}
.mobile-menu-btn svg { width: 24px; height: 24px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb .current { color: var(--text); font-weight: 500; }

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-search {
  position: relative;
}
.header-search input {
  padding: 8px 14px 8px 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13px;
  outline: none;
  width: 200px;
  transition: var(--transition);
}
.header-search input:focus { border-color: var(--primary); width: 260px; }
.header-search svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px; height: 16px;
  color: var(--text-muted);
}

.user-dropdown {
  position: relative;
}
.user-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius);
  transition: var(--transition);
}
.user-dropdown-btn:hover { background: var(--bg); }
.user-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
}
.user-dropdown-btn .user-name { font-size: 14px; color: var(--text); font-weight: 500; }

.user-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  z-index: 200;
  overflow: hidden;
}
.user-dropdown-menu.show { display: block; }
.user-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  color: var(--text);
  font-size: 14px;
  transition: var(--transition);
}
.user-dropdown-menu a:hover { background: var(--bg); }
.user-dropdown-menu a svg { width: 16px; height: 16px; }
.user-dropdown-menu .divider { height: 1px; background: var(--border); }
.user-dropdown-menu a.logout { color: var(--danger); }

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  transition: margin-left var(--transition);
  min-height: 100vh;
}
.sidebar.collapsed ~ .main-content { margin-left: var(--sidebar-collapsed); }
.main-body { padding: 24px; }

/* ============================================
   PAGE HEADER & STATS CARDS
   ============================================ */
.page-header {
  margin-bottom: 24px;
}
.page-header h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
}
.page-header p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.stat-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-icon.blue { background: var(--info-bg); }
.stat-icon.blue svg { color: var(--info); }
.stat-icon.green { background: var(--success-bg); }
.stat-icon.green svg { color: var(--success); }
.stat-icon.orange { background: var(--warning-bg); }
.stat-icon.orange svg { color: var(--warning); }
.stat-icon.purple { background: var(--primary-bg); }
.stat-icon.purple svg { color: var(--primary); }
.stat-icon svg { width: 24px; height: 24px; }
.stat-info .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}
.stat-info .stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 2px;
}
.stat-info .stat-change {
  font-size: 12px;
  margin-top: 4px;
  font-weight: 500;
}
.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ============================================
   CARDS & PANELS
   ============================================ */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-header h3 {
  font-size: 16px;
  font-weight: 600;
}
.card-body { padding: 20px; }
.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Charts */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
.chart-container {
  position: relative;
  width: 100%;
}
.chart-container canvas { width: 100% !important; }

/* Activity Timeline */
.activity-list { max-height: 360px; overflow-y: auto; }
.activity-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.activity-item:last-child { border-bottom: none; }
.activity-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}
.activity-dot.info { background: var(--info); }
.activity-dot.success { background: var(--success); }
.activity-dot.warning { background: var(--warning); }
.activity-dot.danger { background: var(--danger); }
.activity-content { flex: 1; }
.activity-content .activity-title { font-size: 14px; font-weight: 500; }
.activity-content .activity-time { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

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

table {
  width: 100%;
  border-collapse: collapse;
}
table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--text-secondary);
  background: #F8FAFC;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
table th:hover { color: var(--primary); }
table th .sort-icon { margin-left: 4px; font-size: 10px; }
table td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
table tbody tr { transition: var(--transition); }
table tbody tr:hover { background: var(--primary-bg); }

/* Table controls */
.table-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.table-controls-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ============================================
   FORMS
   ============================================ */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}
.form-group .form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
input[type="date"],
input[type="file"],
select,
textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  outline: none;
  transition: var(--transition);
  background: var(--card-bg);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
input.error, select.error, textarea.error {
  border-color: var(--danger);
}
.form-error-msg {
  color: var(--danger);
  font-size: 12px;
  margin-top: 4px;
  display: none;
}
.form-error-msg.show { display: block; }

textarea { resize: vertical; min-height: 100px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Checkbox & Radio */
.checkbox-group, .radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.checkbox-item, .radio-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  cursor: pointer;
}

/* File Upload */
.file-upload-area {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}
.file-upload-area:hover { border-color: var(--primary); background: var(--primary-bg); }
.file-upload-area svg { width: 40px; height: 40px; color: var(--text-muted); margin-bottom: 8px; }
.file-upload-area p { font-size: 14px; color: var(--text-secondary); }
.file-upload-area .upload-hint { font-size: 12px; color: var(--text-muted); }
.file-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.file-preview-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg);
  border-radius: var(--radius);
  font-size: 13px;
}
.file-preview-item .remove-file {
  cursor: pointer;
  color: var(--danger);
  font-weight: bold;
}

/* Rich Text Editor */
.rich-editor-toolbar {
  display: flex;
  gap: 4px;
  padding: 8px;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  background: #F8FAFC;
  flex-wrap: wrap;
}
.rich-editor-toolbar button {
  padding: 6px 10px;
  border: 1px solid transparent;
  background: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text);
  transition: var(--transition);
}
.rich-editor-toolbar button:hover { background: var(--border); }
.rich-editor-toolbar button.active { background: var(--primary-bg); color: var(--primary); border-color: var(--primary-light); }
.rich-editor-content {
  min-height: 200px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
  outline: none;
  font-size: 14px;
  line-height: 1.8;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #DC2626; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #D97706; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-icon { padding: 8px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ============================================
   BADGES & TAGS
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
}
.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  background: var(--bg);
  color: var(--text-secondary);
  margin: 2px;
}
.tag .tag-close {
  margin-left: 6px;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  opacity: 0.5;
}
.tag .tag-close:hover { opacity: 1; }

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  animation: modalIn 0.2s ease;
}
.modal.lg { max-width: 800px; }
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h3 { font-size: 18px; font-weight: 600; }
.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text-muted);
  border-radius: 4px;
}
.modal-close:hover { background: var(--bg); color: var(--text); }
.modal-close svg { width: 20px; height: 20px; }
.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 20px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--info);
  animation: toastIn 0.3s ease;
  max-width: 400px;
  font-size: 14px;
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast.removing { animation: toastOut 0.3s ease forwards; }
.toast-icon svg { width: 20px; height: 20px; }
.toast.success .toast-icon svg { color: var(--success); }
.toast.error .toast-icon svg { color: var(--danger); }
.toast.warning .toast-icon svg { color: var(--warning); }
.toast .toast-close {
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100%); }
}

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
}
.pagination button {
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition);
  color: var(--text);
}
.pagination button:hover:not(:disabled) { background: var(--primary-bg); border-color: var(--primary); }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination-info { font-size: 13px; color: var(--text-secondary); }

/* ============================================
   PERMISSION TREE
   ============================================ */
.perm-tree { margin-top: 8px; }
.perm-group {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
}
.perm-group-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #F8FAFC;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
}
.perm-group-body {
  padding: 8px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.perm-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
}
.perm-item:hover { border-color: var(--primary); }
.perm-item.checked { background: var(--primary-bg); border-color: var(--primary); color: var(--primary); }
.perm-item input { display: none; }

/* ============================================
   SETTINGS / EMPTY STATE
   ============================================ */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}
.empty-state svg { width: 64px; height: 64px; margin-bottom: 16px; opacity: 0.3; }
.empty-state h4 { font-size: 18px; color: var(--text); margin-bottom: 8px; }
.empty-state p { font-size: 14px; }

/* Search / Filter bar */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.filter-bar input, .filter-bar select {
  width: auto;
  min-width: 180px;
}

/* Switch toggle */
.switch {
  position: relative;
  display: inline-block;
  width: 44px; height: 24px;
}
.switch input { display: none; }
.switch .slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 24px;
  cursor: pointer;
  transition: var(--transition);
}
.switch .slider::before {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  left: 3px; top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: var(--transition);
}
.switch input:checked + .slider { background: var(--primary); }
.switch input:checked + .slider::before { transform: translateX(20px); }

/* Tabs */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 24px;
}
.tab-item {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}
.tab-item:hover { color: var(--text); }
.tab-item.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Loading spinner */
.spinner {
  width: 24px; height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .charts-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width);
  }
  .sidebar.mobile-open { transform: translateX(0); }
  .sidebar.collapsed { width: var(--sidebar-width); }
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
  }
  .sidebar-overlay.show { display: block; }

  .main-content { margin-left: 0 !important; }
  .mobile-menu-btn { display: block; }
  .header-search input { width: 140px; }
  .header-search input:focus { width: 160px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .table-controls { flex-direction: column; align-items: flex-start; }
  .filter-bar { flex-direction: column; }
  .filter-bar input, .filter-bar select { width: 100%; }
  .modal { max-width: 95vw; }
  .login-card { padding: 32px 24px; }
  .toast-container { left: 16px; right: 16px; }
  .toast { max-width: 100%; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .user-dropdown-btn .user-name { display: none; }
  .header-search { display: none; }
}

/* Page visibility */
.page-section { display: none; }
.page-section.active { display: block; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }