/* ============================================
   URL Shortener Admin - Common Styles
   ============================================ */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #16a34a;
  --success-light: #f0fdf4;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --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;
  --sidebar-width: 240px;
  --header-height: 60px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
  --font: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 150ms ease;
}

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

html { font-size: 14px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ============================================
   Layout - Sidebar + Main
   ============================================ */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--gray-900);
  color: #fff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.3px;
}

.sidebar-brand .brand-icon {
  width: 32px; height: 32px;
  background: var(--primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
}

.nav-section-label {
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--gray-500);
  padding: 8px 8px 4px;
  margin-top: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 6px;
  color: var(--gray-300);
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  margin-bottom: 2px;
  text-decoration: none;
}

.nav-item:hover { background: rgba(255,255,255,.07); color: #fff; text-decoration: none; }
.nav-item.active { background: var(--primary); color: #fff; }
.nav-item .nav-icon { width: 18px; text-align: center; font-size: 14px; }

.sidebar-footer {
  padding: 12px 10px;
  border-top: 1px solid rgba(255,255,255,.08);
}

.sidebar-footer .nav-item {
  color: var(--gray-400);
}

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

/* Top Header */
.top-header {
  height: var(--header-height);
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.page-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--gray-800);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  color: var(--gray-600);
}

.user-avatar {
  width: 30px; height: 30px;
  background: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: .75rem;
  font-weight: 700;
}

/* Page Content */
.page-content {
  padding: 24px;
  flex: 1;
}

/* ============================================
   Cards & Panels
   ============================================ */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  font-size: .95rem;
  font-weight: 600;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  padding: 20px;
}

/* ============================================
   Stat Cards (Dashboard)
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  box-shadow: var(--shadow-sm);
}

.stat-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.stat-icon.blue   { background: var(--primary-light); color: var(--primary); }
.stat-icon.green  { background: var(--success-light); color: var(--success); }
.stat-icon.amber  { background: var(--warning-light); color: var(--warning); }
.stat-icon.red    { background: var(--danger-light); color: var(--danger); }
.stat-icon.purple { background: #f5f3ff; color: #7c3aed; }

.stat-body {}
.stat-label {
  font-size: .75rem;
  color: var(--gray-500);
  font-weight: 500;
  margin-bottom: 2px;
}
.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.2;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; text-decoration: none; }

.btn-success {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}
.btn-success:hover:not(:disabled) { background: #15803d; color: #fff; text-decoration: none; }

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover:not(:disabled) { background: #b91c1c; color: #fff; text-decoration: none; }

.btn-outline {
  background: #fff;
  color: var(--gray-700);
  border-color: var(--gray-300);
}
.btn-outline:hover:not(:disabled) { background: var(--gray-50); text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--gray-600);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) { background: var(--gray-100); text-decoration: none; }

.btn-sm { padding: 5px 10px; font-size: .78rem; }
.btn-lg { padding: 11px 20px; font-size: .95rem; }
.btn-icon { padding: 7px; width: 32px; height: 32px; justify-content: center; }
.btn-icon.btn-sm { padding: 5px; width: 28px; height: 28px; }

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-label .required {
  color: var(--danger);
  margin-left: 3px;
}

.form-label .optional {
  color: var(--gray-400);
  font-weight: 400;
  font-size: .75rem;
  margin-left: 4px;
}

.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: .88rem;
  color: var(--gray-800);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: var(--font);
  line-height: 1.5;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.form-control.is-invalid {
  border-color: var(--danger);
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(220,38,38,.12);
}

.form-hint {
  font-size: .76rem;
  color: var(--gray-500);
  margin-top: 5px;
}

.form-error {
  font-size: .76rem;
  color: var(--danger);
  margin-top: 5px;
  display: flex;
  align-items: center;
  gap: 4px;
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

select.form-control { cursor: pointer; }

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

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

.input-group {
  display: flex;
}

.input-addon {
  padding: 9px 12px;
  background: var(--gray-100);
  border: 1px solid var(--gray-300);
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
  color: var(--gray-600);
  font-size: .85rem;
  white-space: nowrap;
}

.input-group .form-control {
  border-radius: 0 var(--radius) var(--radius) 0;
  flex: 1;
}

.input-group-btn {
  display: flex;
}
.input-group-btn .form-control {
  border-radius: var(--radius) 0 0 var(--radius);
  border-right: none;
}
.input-group-btn .btn {
  border-radius: 0 var(--radius) var(--radius) 0;
  border-left: none;
}

/* Radio / Toggle */
.radio-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.radio-card {
  flex: 1;
  min-width: 100px;
  position: relative;
}

.radio-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
}

.radio-card label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: .85rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: all var(--transition);
  text-align: center;
}

.radio-card input[type="radio"]:checked + label {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: .88rem;
  color: var(--gray-700);
}

.checkbox-label input[type="checkbox"] {
  width: 16px; height: 16px;
  cursor: pointer;
  accent-color: var(--primary);
}

/* ============================================
   Table
   ============================================ */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .84rem;
}

thead {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}

th {
  padding: 10px 14px;
  text-align: left;
  font-size: .76rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: .05em;
  white-space: nowrap;
}

th.sortable {
  cursor: pointer;
  user-select: none;
}
th.sortable:hover { color: var(--gray-800); }
th.sortable .sort-icon { margin-left: 4px; opacity: .4; }
th.sort-asc .sort-icon,
th.sort-desc .sort-icon { opacity: 1; color: var(--primary); }

td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
  color: var(--gray-700);
}

tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--gray-50); }

.td-truncate {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.td-url {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: monospace;
  font-size: .8rem;
  color: var(--gray-500);
}

/* ============================================
   Badges / Status
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 100px;
  font-size: .72rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-active   { background: var(--success-light); color: var(--success); }
.badge-disabled { background: var(--gray-100); color: var(--gray-500); }
.badge-expired  { background: var(--warning-light); color: var(--warning); }
.badge-301      { background: #ede9fe; color: #7c3aed; }
.badge-302      { background: var(--primary-light); color: var(--primary); }

/* ============================================
   Search / Filters Bar
   ============================================ */
.filter-bar {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  margin-bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
}

.filter-bar .filter-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 140px;
  flex: 1;
}

.filter-bar .filter-group label {
  font-size: .72rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.filter-bar .filter-group .form-control {
  padding: 7px 10px;
  font-size: .84rem;
}

.filter-bar .filter-search {
  flex: 2;
  min-width: 200px;
}

.search-wrapper {
  position: relative;
}

.search-wrapper .search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
  font-size: .85rem;
}

.search-wrapper .form-control {
  padding-left: 32px;
}

/* ============================================
   Modals
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.show {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: #fff;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px);
  transition: transform var(--transition);
}

.modal-overlay.show .modal { transform: translateY(0); }

.modal-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: .95rem;
  font-weight: 600;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-body { padding: 20px; }

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--gray-100);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ============================================
   Alerts / Toasts
   ============================================ */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: .85rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}

.alert-danger  { background: var(--danger-light); color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: var(--warning-light); color: #92400e; border: 1px solid #fde68a; }
.alert-success { background: var(--success-light); color: #166534; border: 1px solid #bbf7d0; }
.alert-info    { background: var(--primary-light); color: #1e3a8a; border: 1px solid #bfdbfe; }

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--gray-900);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: .85rem;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  animation: slideIn .2s ease;
  max-width: 320px;
}

.toast.toast-success { background: var(--success); }
.toast.toast-danger  { background: var(--danger); }
.toast.toast-warning { background: var(--warning); }

@keyframes slideIn {
  from { transform: translateX(20px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ============================================
   Copy URL Field
   ============================================ */
.copy-field {
  display: flex;
  align-items: center;
  gap: 0;
}

.copy-field input {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--gray-300);
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
  font-family: monospace;
  font-size: .82rem;
  color: var(--gray-600);
  background: var(--gray-50);
  min-width: 0;
}

.copy-field .btn-copy {
  border-radius: 0 var(--radius) var(--radius) 0;
  white-space: nowrap;
  padding: 8px 12px;
  font-size: .82rem;
}

/* Short URL display in table */
.short-url-cell {
  display: flex;
  align-items: center;
  gap: 6px;
}

.short-url-cell a {
  font-family: monospace;
  font-size: .82rem;
  color: var(--primary);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.short-url-cell .btn-icon {
  flex-shrink: 0;
}

/* ============================================
   Action Dropdown
   ============================================ */
.action-menu {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  min-width: 150px;
  z-index: 50;
  display: none;
  overflow: hidden;
}

.dropdown-menu.show { display: block; }

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  font-size: .84rem;
  color: var(--gray-700);
  cursor: pointer;
  transition: background var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.dropdown-item:hover { background: var(--gray-50); }
.dropdown-item.danger { color: var(--danger); }
.dropdown-item.danger:hover { background: var(--danger-light); }
.dropdown-divider { height: 1px; background: var(--gray-100); margin: 4px 0; }

/* ============================================
   Pagination
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-top: 1px solid var(--gray-100);
  font-size: .82rem;
  color: var(--gray-500);
}

.pagination-btns {
  display: flex;
  gap: 4px;
}

.pagination-btns .btn {
  min-width: 32px;
  height: 32px;
  padding: 0;
  justify-content: center;
  font-size: .82rem;
}

.pagination-btns .btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-400);
}

.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: 14px;
  opacity: .5;
}

.empty-state h3 {
  font-size: .95rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-bottom: 6px;
}

.empty-state p {
  font-size: .84rem;
  margin-bottom: 16px;
}

/* ============================================
   Login Page
   ============================================ */
.login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo .logo-icon {
  width: 56px; height: 56px;
  background: var(--primary);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 12px;
}

.login-logo h1 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gray-800);
}

.login-logo p {
  font-size: .82rem;
  color: var(--gray-500);
  margin-top: 4px;
}

/* ============================================
   Error Pages
   ============================================ */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  padding: 40px 20px;
  background: var(--gray-50);
}

.error-code {
  font-size: 6rem;
  font-weight: 800;
  color: var(--gray-200);
  line-height: 1;
  margin-bottom: 12px;
}

.error-icon-lg {
  font-size: 5rem;
  margin-bottom: 16px;
}

.error-page h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 10px;
}

.error-page p {
  color: var(--gray-500);
  font-size: .95rem;
  max-width: 400px;
  margin-bottom: 28px;
}

/* ============================================
   Redirect Page (r/slug)
   ============================================ */
.redirect-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: #0f172a;
  color: #fff;
  text-align: center;
  padding: 40px 20px;
}

.redirect-spinner {
  width: 48px; height: 48px;
  border: 3px solid rgba(255,255,255,.15);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  margin: 0 auto 24px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.redirect-page h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.redirect-page p {
  font-size: .85rem;
  color: rgba(255,255,255,.5);
}

/* ============================================
   Misc Utilities
   ============================================ */
.text-muted   { color: var(--gray-500) !important; }
.text-sm      { font-size: .8rem; }
.text-xs      { font-size: .72rem; }
.text-mono    { font-family: monospace; }
.text-danger  { color: var(--danger) !important; }
.text-success { color: var(--success) !important; }
.text-primary { color: var(--primary) !important; }
.fw-600       { font-weight: 600; }
.mb-0         { margin-bottom: 0; }
.mb-4         { margin-bottom: 4px; }
.mb-8         { margin-bottom: 8px; }
.mb-16        { margin-bottom: 16px; }
.mb-24        { margin-bottom: 24px; }
.mt-8         { margin-top: 8px; }
.mt-16        { margin-top: 16px; }
.mt-24        { margin-top: 24px; }
.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8        { gap: 8px; }
.gap-12       { gap: 12px; }
.gap-16       { gap: 16px; }
.w-full       { width: 100%; }
.d-none       { display: none !important; }

/* Warning banner */
.warning-banner {
  background: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: .82rem;
  color: #92400e;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 16px;
}

/* Loading overlay */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.7);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  z-index: 10;
}

.spinner {
  width: 24px; height: 24px;
  border: 2px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.mobile-open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .form-row, .form-row-3 {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .filter-bar {
    flex-direction: column;
  }
  .filter-bar .filter-group {
    min-width: 100%;
  }
  .mobile-menu-btn {
    display: flex !important;
  }
}

.mobile-menu-btn {
  display: none;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-600);
  font-size: .85rem;
}

.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 99;
}
.mobile-overlay.show { display: block; }

/* Slug readonly hint */
.slug-lock-notice {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .76rem;
  color: var(--gray-500);
  margin-top: 4px;
}

/* Click count badge */
.click-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--gray-700);
}