/*
 * Admin Common Styles - Shared design tokens matching frontend
 * Reuses the same visual language: dark theme, glass morphism, animation curves
 */

/* ---- CSS Variables (mirroring frontend Tailwind config) ---- */
:root {
  --color-primary: #ffffff;
  --color-on-primary: #000000;
  --color-background: #000000;
  --color-surface: #121212;
  --color-surface-variant: #1c1c1c;
  --color-on-surface: #ffffff;
  --color-on-surface-variant: #a1a1a1;
  --color-border-subtle: rgba(255, 255, 255, 0.1);
  --color-error: #ba1a1a;
  --color-on-error: #ffffff;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-full: 9999px;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 200ms var(--ease-out-expo);
  --transition-normal: 300ms var(--ease-out-expo);
  --transition-slow: 500ms var(--ease-out-expo);
}

/* ---- Admin Body Overrides ---- */
body.admin-body {
  background-color: var(--color-background);
  color: var(--color-on-surface);
  font-family: 'Hanken Grotesk', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
}

/* ---- Admin Layout ---- */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 240px;
  min-width: 240px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width var(--transition-normal), min-width var(--transition-normal);
}

/* ---- Collapsed Sidebar ---- */
.admin-sidebar.collapsed {
  width: 60px;
  min-width: 60px;
}
.admin-sidebar.collapsed .admin-sidebar-logo-text,
.admin-sidebar.collapsed .admin-sidebar-logo-sub,
.admin-sidebar.collapsed .admin-sidebar-section-title,
.admin-sidebar.collapsed .admin-sidebar-item span:not(.material-symbols-outlined),
.admin-sidebar.collapsed .admin-sidebar-back span:not(.material-symbols-outlined) {
  opacity: 0;
  width: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: opacity 0.15s ease, width 0.15s ease;
}
.admin-sidebar.collapsed .admin-sidebar-item {
  justify-content: center;
  padding: 12px;
  gap: 0;
}
.admin-sidebar.collapsed .admin-sidebar-logo {
  justify-content: center;
  padding: 20px 12px;
}
.admin-sidebar.collapsed .admin-sidebar-back {
  justify-content: center;
  padding: 12px;
}
.admin-sidebar.collapsed .admin-sidebar-nav {
  padding: 16px 8px;
}
.admin-sidebar.collapsed .admin-sidebar-footer {
  padding: 12px 8px;
}

/* ---- Sidebar Toggle Button ---- */
.admin-sidebar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  background: transparent;
  color: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.admin-sidebar-toggle:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.06);
}
.admin-sidebar-toggle .material-symbols-outlined {
  font-size: 18px;
  transition: transform var(--transition-normal);
}
.admin-sidebar.collapsed .admin-sidebar-toggle .material-symbols-outlined {
  transform: rotate(180deg);
}

/* ---- Content adjusts to sidebar width ---- */
.admin-content {
  flex: 1;
  margin-left: 240px;
  padding: 32px 40px;
  min-height: 100vh;
  background: var(--color-background);
  transition: margin-left var(--transition-normal);
}
.admin-sidebar.collapsed + .admin-content {
  margin-left: 60px;
}

.admin-sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.admin-sidebar-logo-text {
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.admin-sidebar-logo-sub {
  font-size: 12px;
  color: var(--color-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.admin-sidebar-nav {
  flex: 1;
  padding: 16px 12px;
}

.admin-sidebar-section {
  margin-bottom: 20px;
}

.admin-sidebar-section-title {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.3);
  padding: 0 12px;
  margin-bottom: 8px;
}

.admin-sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--color-on-surface-variant);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
}

.admin-sidebar-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-primary);
}

.admin-sidebar-item.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-primary);
}

.admin-sidebar-item .material-symbols-outlined {
  font-size: 20px;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
}

.admin-sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--color-border-subtle);
}

.admin-sidebar-back {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--color-on-surface-variant);
  font-size: 13px;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.admin-sidebar-back:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-primary);
}

.admin-sidebar-back .material-symbols-outlined {
  font-size: 18px;
}

/* ---- Sync Status Indicator ---- */
.admin-sync-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin-bottom: 8px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  font-size: 12px;
  color: var(--color-on-surface-variant);
}

.admin-sync-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.3);
  transition: background 200ms var(--ease-out-expo);
}

.admin-sync-dot.synced { background: #4caf50; }
.admin-sync-dot.pending { background: #ff9800; animation: pulse-dot 1.2s ease-in-out infinite; }
.admin-sync-dot.error { background: #f44336; }
.admin-sync-dot.offline { background: rgba(255, 255, 255, 0.2); }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.admin-sync-spinner {
  display: none;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.admin-sync-spinner.show { display: flex; }

.spinner-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #ff9800;
  animation: spinner-bounce 1.4s ease-in-out infinite;
}

.spinner-dot:nth-child(2) { animation-delay: 0.2s; }
.spinner-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes spinner-bounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

.admin-sync-status.has-error { background: rgba(244, 67, 54, 0.08); }

/* ---- Admin Content (defined above with sidebar collapse support) ---- */

/* ---- Global Form Element Reset (scoped to admin pages) ---- */
/* Overrides Tailwind forms plugin + browser defaults to ensure readability on dark theme */
.admin-content input[type="text"],
.admin-content input[type="number"],
.admin-content input[type="email"],
.admin-content input[type="password"],
.admin-content input[type="search"],
.admin-content input[type="url"],
.admin-content input[type="tel"],
.admin-content input[type="date"],
.admin-content input[type="datetime-local"],
.admin-content input[type="month"],
.admin-content input[type="week"],
.admin-content input[type="time"],
.admin-content textarea,
.admin-content select {
  background: rgba(255, 255, 255, 0.09);
  color: var(--color-primary);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  padding: 11px 14px;
  outline: none;
  caret-color: var(--color-primary);
  box-sizing: border-box;
  transition: all var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

/* Placeholder — must be visible on dark background (WCAG AA) */
.admin-content input::placeholder,
.admin-content textarea::placeholder {
  color: rgba(255, 255, 255, 0.55);
  opacity: 1;
}

/* Selection highlight */
.admin-content input::selection,
.admin-content textarea::selection {
  background: rgba(255, 255, 255, 0.25);
  color: #000;
}

/* Focus state */
.admin-content input:focus,
.admin-content textarea:focus,
.admin-content select:focus {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.06), inset 0 0 0 1px rgba(255,255,255,0.05);
}

/* Disabled state */
.admin-content input:disabled,
.admin-content textarea:disabled,
.admin-content select:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.08);
}

/* Select dropdown arrow — maintain custom arrow */
.admin-content select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%23a1a1a1' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

.admin-content select option {
  background: var(--color-surface);
  color: var(--color-primary);
}

/* ---- Admin Page Header ---- */
.admin-page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.admin-page-header h1 {
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 32px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-primary);
  margin: 0 0 8px 0;
}

.admin-page-header p {
  font-size: 14px;
  color: var(--color-on-surface-variant);
  margin: 0;
}

/* ---- Cards & Panels ---- */
.admin-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition-normal);
}

.admin-card:hover {
  background: rgba(255, 255, 255, 0.05);
}

.admin-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.admin-card-header h3 {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary);
  margin: 0;
}

/* ---- Form Elements ---- */
.admin-form-group {
  margin-bottom: 20px;
}

.admin-form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-on-surface-variant);
  margin-bottom: 8px;
}

.admin-input {
  width: 100%;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  transition: all var(--transition-fast);
  box-sizing: border-box;
  outline: none;
  caret-color: var(--color-primary);
}
.admin-input::selection {
  background: rgba(255, 255, 255, 0.25);
  color: #000;
}

.admin-input:focus {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.06), inset 0 0 0 1px rgba(255,255,255,0.05);
}

.admin-input::placeholder {
  color: rgba(255, 255, 255, 0.55);
  font-style: italic;
  opacity: 1;
}

.admin-textarea {
  width: 100%;
  min-height: 100px;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 14px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  resize: vertical;
  transition: all var(--transition-fast);
  box-sizing: border-box;
  outline: none;
  caret-color: var(--color-primary);
}
.admin-textarea::selection {
  background: rgba(255, 255, 255, 0.25);
  color: #000;
}

.admin-textarea:focus {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.06), inset 0 0 0 1px rgba(255,255,255,0.05);
}

.admin-textarea::placeholder {
  color: rgba(255, 255, 255, 0.55);
  font-style: italic;
  opacity: 1;
}

.admin-select {
  width: 100%;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-sizing: border-box;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%23a1a1a1' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.admin-select:focus {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.06);
}

.admin-select option {
  background: var(--color-surface);
  color: var(--color-primary);
}

/* ---- Date Picker (Flat Design) ---- */
.datepicker-wrapper {
  position: relative;
  display: flex;
  align-items: stretch;
}
.datepicker-wrapper .admin-input {
  padding-right: 40px;
}

.datepicker-icon {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  pointer-events: auto;
  transition: color var(--transition-fast);
  z-index: 1;
}
.datepicker-icon:hover,
.datepicker-icon.open {
  color: rgba(255, 255, 255, 0.7);
}

.datepicker-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 1001;
  min-width: 280px;
  background: var(--color-surface-variant);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 12px;
}
.datepicker-dropdown.open {
  display: block;
  animation: dpFadeIn 0.15s ease;
}
@keyframes dpFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Header: month navigation */
.datepicker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.datepicker-month {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  user-select: none;
}
.datepicker-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  background: transparent;
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
}
.datepicker-nav:hover:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.06);
}
.datepicker-nav:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}
.datepicker-nav .material-symbols-outlined {
  font-size: 16px;
}

/* Weekday labels */
.datepicker-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.3);
  text-transform: uppercase;
  margin-bottom: 6px;
  user-select: none;
}

/* Day grid */
.datepicker-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.datepicker-day {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  font-size: 13px;
  color: var(--color-on-surface-variant);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  user-select: none;
}
.datepicker-day.empty {
  cursor: default;
  pointer-events: none;
}
.datepicker-day:hover:not(.empty):not(.disabled) {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--color-primary);
}
.datepicker-day.today {
  border-color: rgba(255, 255, 255, 0.25);
  font-weight: 600;
}
.datepicker-day.selected {
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 600;
  border-color: var(--color-primary);
}
.datepicker-day.disabled {
  opacity: 0.2;
  cursor: not-allowed;
  pointer-events: none;
}

/* Footer actions */
.datepicker-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.datepicker-btn {
  flex: 1;
  padding: 6px 0;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-on-surface-variant);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}
.datepicker-btn:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.04);
}
.datepicker-btn-today {
  color: rgba(255, 255, 255, 0.7);
}

/* ===== Image Manager (Flat Design) ===== */
.imgmgr-dropzone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 36px 20px;
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}
.imgmgr-dropzone:hover,
.imgmgr-dropzone.dragover {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.05);
}
.imgmgr-dropzone.dragover {
  border-style: solid;
  background: rgba(255, 255, 255, 0.06);
}
.imgmgr-dropzone-icon {
  font-size: 36px;
  color: rgba(255, 255, 255, 0.2);
  margin-bottom: 8px;
  transition: color var(--transition-fast);
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 40;
}
.imgmgr-dropzone:hover .imgmgr-dropzone-icon,
.imgmgr-dropzone.dragover .imgmgr-dropzone-icon {
  color: rgba(255, 255, 255, 0.45);
}
.imgmgr-dropzone-text {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.35);
  margin: 0 0 4px 0;
}
.imgmgr-dropzone-hint {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.18);
  margin: 0;
}
.imgmgr-file-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* URL添加图片 */
.imgmgr-url-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  align-items: center;
}
.imgmgr-url-input {
  flex: 1;
  height: 36px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  color: var(--color-on-surface-variant);
  font-size: 12px;
  padding: 0 10px;
  font-family: 'Hanken Grotesk', sans-serif;
  outline: none;
  transition: border-color var(--transition-fast);
}
.imgmgr-url-input:focus { border-color: var(--color-primary); }
.imgmgr-url-input::placeholder { color: rgba(255,255,255,0.2); }
.imgmgr-url-add {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 36px;
  padding: 0 14px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  background: rgba(58,110,165,0.12);
  color: var(--color-primary);
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  font-family: 'Hanken Grotesk', sans-serif;
}
.imgmgr-url-add:hover { background: rgba(58,110,165,0.22); border-color: var(--color-primary); }
.imgmgr-url-add .material-symbols-outlined { font-size: 16px; }

/* Image grid */
.imgmgr-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 16px;
  min-height: 40px;
}
.imgmgr-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 24px;
  color: rgba(255, 255, 255, 0.2);
  font-size: 13px;
}

/* Single image item */
.imgmgr-item {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  background: var(--color-surface-variant);
  overflow: hidden;
  transition: all var(--transition-fast);
  cursor: default;
}
.imgmgr-item:hover {
  border-color: rgba(255, 255, 255, 0.25);
}
.imgmgr-item.sortable-chosen {
  border-color: rgba(255, 255, 255, 0.35);
}
.imgmgr-item.sortable-ghost {
  opacity: 0.3;
  border-style: dashed;
}

.imgmgr-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
  background: rgba(255, 255, 255, 0.04);
}
.imgmgr-name {
  padding: 6px 8px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.45);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.imgmgr-handle {
  position: absolute;
  top: 4px;
  left: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  color: rgba(255, 255, 255, 0.3);
  background: rgba(0, 0, 0, 0.5);
  border-radius: var(--radius-sm);
  cursor: grab;
  font-size: 16px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.imgmgr-item:hover .imgmgr-handle {
  opacity: 1;
}
.imgmgr-handle:active {
  cursor: grabbing;
}

.imgmgr-delete {
  position: absolute;
  top: 4px;
  right: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: none;
  background: rgba(0, 0, 0, 0.5);
  color: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  opacity: 0;
  transition: all var(--transition-fast);
}
.imgmgr-item:hover .imgmgr-delete {
  opacity: 1;
}
.imgmgr-delete:hover {
  background: rgba(220, 50, 50, 0.7);
  color: #fff;
}

/* Counter */
.imgmgr-counter {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.3);
  text-align: right;
}

/* Upload progress bar */
.imgmgr-progress {
  grid-column: 1 / -1;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  background: var(--color-surface-variant);
}
.imgmgr-progress-name {
  display: block;
  font-size: 12px;
  color: var(--color-on-surface-variant);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.imgmgr-progress-pct {
  float: right;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.35);
  margin-top: -16px;
}
.imgmgr-progress-track {
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.imgmgr-progress-fill {
  height: 100%;
  border-radius: 2px;
  background: var(--color-primary);
  transition: width 0.2s ease;
  width: 0%;
}

/* ---- Buttons ---- */
.admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-family: 'Hanken Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
  text-decoration: none;
  line-height: 1;
}

.admin-btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.admin-btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.15);
}

.admin-btn-primary:active {
  transform: scale(0.98);
}

.admin-btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-primary);
  border: 1px solid var(--color-border-subtle);
}

.admin-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: scale(1.02);
}

.admin-btn-secondary:active {
  transform: scale(0.98);
}

.admin-btn-ghost {
  background: transparent;
  color: var(--color-on-surface-variant);
}

.admin-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-primary);
}

.admin-btn-danger {
  background: transparent;
  color: var(--color-error);
  border: 1px solid rgba(186, 26, 26, 0.3);
}

.admin-btn-danger:hover {
  background: rgba(186, 26, 26, 0.1);
  border-color: var(--color-error);
}

.admin-btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.admin-btn-icon {
  padding: 8px;
  min-width: 36px;
  justify-content: center;
}

.admin-btn-icon .material-symbols-outlined {
  font-size: 20px;
}

/* ---- Table ---- */
.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.3);
  border-bottom: 1px solid var(--color-border-subtle);
}

.admin-table td {
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border-subtle);
  color: var(--color-on-surface-variant);
  transition: all var(--transition-fast);
}

.admin-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-primary);
}

.admin-table tbody tr {
  transition: all var(--transition-fast);
}

/* ---- Tags / Badges ---- */
.admin-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--color-border-subtle);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-on-surface-variant);
}

/* ---- Toast / Notification ---- */
.admin-toast {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 10000;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  animation: adminToastIn 0.4s var(--ease-out-expo);
  max-width: 360px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.admin-toast-success {
  background: rgba(0, 200, 83, 0.15);
  border: 1px solid rgba(0, 200, 83, 0.3);
  color: #69f0ae;
}

.admin-toast-error {
  background: rgba(255, 23, 68, 0.15);
  border: 1px solid rgba(255, 23, 68, 0.3);
  color: #ff5252;
}

.admin-toast-info {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--color-border-subtle);
  color: var(--color-primary);
}

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

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

/* ---- PDF Viewer Toast ---- */
.pdf-viewer-toast {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 10001;
  padding: 14px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  font-family: 'Hanken Grotesk', sans-serif;
  animation: pdfToastIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 380px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  line-height: 1.5;
}

.pdf-viewer-toast-info {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.pdf-viewer-toast-error {
  background: rgba(255, 23, 68, 0.18);
  border: 1px solid rgba(255, 23, 68, 0.35);
  color: #ff6b6b;
}

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

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

/* ---- Image Thumbnail ---- */
.admin-thumbnail {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
}

.admin-thumbnail-lg {
  width: 160px;
  height: 120px;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
}

/* ---- Sortable Drag (Flat Design) ---- */
.sortable-ghost {
  opacity: 0.4;
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
}
.sortable-ghost > * {
  visibility: hidden;
}

.sortable-chosen {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-md);
  z-index: 1000;
}

.sortable-drag {
  opacity: 0.85;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-md);
  background: var(--color-surface-variant);
}

/* ---- Modal ---- */
.admin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: modalFadeIn 0.2s var(--ease-out-expo);
}

.admin-modal {
  background: var(--color-surface-variant);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 560px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s var(--ease-spring);
}

.admin-modal h3 {
  font-size: 20px;
  font-weight: 500;
  color: var(--color-primary);
  margin: 0 0 20px 0;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* ---- Empty State ---- */
.admin-empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-on-surface-variant);
}

.admin-empty-state .material-symbols-outlined {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.3;
}

.admin-empty-state p {
  font-size: 14px;
  margin: 0 0 16px 0;
}

/* ---- File Upload Drop Zone ---- */
.admin-dropzone {
  border: 2px dashed var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--color-on-surface-variant);
  font-size: 14px;
}

.admin-dropzone:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-primary);
}

.admin-dropzone.drag-over {
  border-color: var(--color-primary);
  background: rgba(255, 255, 255, 0.06);
}

.admin-dropzone .material-symbols-outlined {
  font-size: 40px;
  display: block;
  margin: 0 auto 12px;
  opacity: 0.4;
}

/* ---- Editor Container ---- */
.admin-editor-container {
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.admin-editor-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
}

.admin-editor-tab {
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-on-surface-variant);
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
}

.admin-editor-tab:hover {
  color: var(--color-primary);
}

.admin-editor-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---- Preview Panel ---- */
.admin-preview-panel {
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  background: var(--color-surface);
  max-height: 500px;
  overflow-y: auto;
}

.admin-preview-panel img {
  max-width: 100%;
  height: auto;
}

.admin-preview-panel h1,
.admin-preview-panel h2,
.admin-preview-panel h3 {
  color: var(--color-primary);
}

.admin-preview-panel p {
  color: var(--color-on-surface-variant);
  line-height: 1.7;
  margin-bottom: 12px;
}

.admin-preview-panel code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 13px;
}

.admin-preview-panel pre {
  background: rgba(255, 255, 255, 0.05);
  padding: 16px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
}

.admin-preview-panel blockquote {
  border-left: 3px solid rgba(255, 255, 255, 0.2);
  padding-left: 16px;
  margin-left: 0;
  color: var(--color-on-surface-variant);
}

/* ---- TOC Side Panel ---- */
.admin-toc-panel {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.admin-toc-item {
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-on-surface-variant);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-toc-item:last-child {
  border-bottom: none;
}

.admin-toc-level-h2 { padding-left: 0; }
.admin-toc-level-h3 { padding-left: 16px; font-size: 12px; }

/* ---- Drag Handle (Flat Design) ---- */
.admin-drag-handle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  cursor: grab;
  color: rgba(255, 255, 255, 0.3);
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
  user-select: none;
}
.admin-drag-handle:hover {
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.06);
}
.admin-drag-handle:active {
  cursor: grabbing;
  color: var(--color-primary);
}
.admin-drag-handle .material-symbols-outlined {
  font-size: 18px;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
}

/* ---- Scrollbar ---- */
.admin-content::-webkit-scrollbar,
.admin-sidebar::-webkit-scrollbar {
  width: 4px;
}
.admin-content::-webkit-scrollbar-track,
.admin-sidebar::-webkit-scrollbar-track {
  background: transparent;
}
.admin-content::-webkit-scrollbar-thumb,
.admin-sidebar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

/* ---- Stats Grid ---- */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.admin-stat-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all var(--transition-normal);
}

.admin-stat-card:hover {
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-2px);
}

.admin-stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.admin-stat-label {
  font-size: 12px;
  color: var(--color-on-surface-variant);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---- Grid Layout ---- */
.admin-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.admin-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.admin-grid-2-1 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .admin-sidebar {
    width: 60px;
    min-width: 60px;
  }
  .admin-sidebar .admin-sidebar-logo-text,
  .admin-sidebar .admin-sidebar-logo-sub,
  .admin-sidebar .admin-sidebar-section-title,
  .admin-sidebar .admin-sidebar-item span:not(.material-symbols-outlined),
  .admin-sidebar .admin-sidebar-back span:not(.material-symbols-outlined) {
    display: none;
  }
  .admin-sidebar .admin-sidebar-item {
    justify-content: center;
    padding: 12px;
  }
  .admin-content {
    margin-left: 60px;
    padding: 24px 20px;
  }
  .admin-grid-2,
  .admin-grid-3,
  .admin-grid-2-1 {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Video Embed Modal & Quill Video Blot Styles
   ============================================================ */

/* ---- 视频插入模态弹窗 ---- */
.video-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(6px);
  z-index: 6000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.video-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.video-modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: 12px;
  width: 580px;
  max-width: 94vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.video-modal-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--color-border-subtle);
}
.video-modal-header .material-symbols-outlined {
  font-size: 24px;
  color: var(--color-primary);
}
.video-modal-header h3 {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-on-surface);
  margin: 0;
}
.video-modal-close {
  background: none;
  border: none;
  color: rgba(255,255,255,0.4);
  font-size: 24px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: color 0.15s;
}
.video-modal-close:hover { color: var(--color-on-surface); }

.video-modal-body {
  padding: 18px 22px;
}
.video-modal-body label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.35);
  margin-bottom: 8px;
}

.video-modal-input-row {
  display: flex;
  gap: 8px;
}
.video-modal-input-row input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border-subtle);
  border-radius: 8px;
  color: var(--color-on-surface);
  padding: 10px 14px;
  font-size: 14px;
  font-family: 'Hanken Grotesk', sans-serif;
  outline: none;
  transition: border-color 0.2s;
}
.video-modal-input-row input:focus {
  border-color: var(--color-primary);
}
.video-modal-input-row input::placeholder {
  color: rgba(255,255,255,0.2);
}

.video-modal-platform {
  margin-top: 10px;
  display: flex;
  align-items: center;
  min-height: 24px;
}
.vm-platform-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.video-modal-preview {
  margin-top: 12px;
  border-radius: 8px;
  overflow: hidden;
  background: #000;
}
.video-modal-error {
  margin-top: 10px;
  color: #ef5350;
  font-size: 12px;
  min-height: 18px;
}

.video-modal-footer {
  padding: 12px 22px;
  border-top: 1px solid var(--color-border-subtle);
  text-align: center;
}
.video-modal-footer small {
  color: rgba(255,255,255,0.2);
  font-size: 11px;
}

/* ---- Quill 编辑区中的视频播放器 ---- */
.ql-video-wrapper {
  margin: 16px 0;
  cursor: default;
  max-width: 100%;
}
/* 编辑器内的视频播放器需要 pointer-events 来允许交互 */
.ql-editor .ql-video-wrapper .responsive-video iframe {
  pointer-events: auto;
}
.ql-video-preview {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border-subtle);
  border-radius: 10px;
  padding: 14px 16px;
  transition: border-color 0.2s;
}
.ql-video-preview:hover {
  border-color: rgba(255,255,255,0.15);
}

.ql-video-preview-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ql-video-preview-icon .material-symbols-outlined {
  font-size: 22px;
  color: #fff;
}

.ql-video-preview-info {
  min-width: 0;
}
.ql-video-preview-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-on-surface);
  margin-bottom: 3px;
}
.ql-video-preview-url {
  display: block;
  font-size: 11px;
  color: rgba(255,255,255,0.3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---- 响应式视频容器（最终输出 / 预览面板使用） ---- */
.responsive-video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  background: #000;
  border-radius: 8px;
}
.responsive-video iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}

/* 未识别平台时的降级显示 */
.responsive-video--unsupported {
  padding-bottom: 0;
  height: auto;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 24px;
}
.responsive-video--unsupported .ql-video-preview-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

/* 响应式 */
@media (max-width: 600px) {
  .video-modal { width: 96vw; }
  .video-modal-input-row { flex-direction: column; }
  .ql-video-preview { padding: 10px 12px; gap: 10px; }
}