/* ── Design Tokens (Figma-style) ── */
:root {
  --canvas-bg: #FBFBFB;
  --panel-bg: #FFFFFF;
  --elevated-bg: #FFFFFF;
  --border-color: #E5E5E5;
  --text-primary: #1E1E1E;
  --text-secondary: #6B6B6B;
  --text-tertiary: #999999;
  --accent: #0D99FF;
  --accent-hover: #0B87E0;
  --accent-bg: rgba(13, 153, 255, 0.08);
  --accent-border: rgba(13, 153, 255, 0.25);
  --success: #22C55E;
  --success-bg: rgba(34, 197, 94, 0.08);
  --success-border: rgba(34, 197, 94, 0.25);
  --error: #EF4444;
  --error-bg: rgba(239, 68, 68, 0.08);
  --error-border: rgba(239, 68, 68, 0.25);
  --warning: #F59E0B;
  --radius-input: 6px;
  --radius-card: 8px;
  --global-rail-width: 56px;
  --sidebar-width: 260px;
  --right-panel-width: 300px;
  --top-bar-height: 0px;
  --transition: 150ms ease;
  color-scheme: light;
}

html.dark {
  --canvas-bg: #1E1E1E;
  --panel-bg: #2C2C2C;
  --elevated-bg: #383838;
  --border-color: #3C3C3C;
  --text-primary: #FFFFFF;
  --text-secondary: #999999;
  --text-tertiary: #666666;
  --accent: #3AAFFF;
  --accent-hover: #60C2FF;
  --accent-bg: rgba(58, 175, 255, 0.12);
  --accent-border: rgba(58, 175, 255, 0.35);
  --success: #4ADE80;
  --success-bg: rgba(74, 222, 128, 0.12);
  --success-border: rgba(74, 222, 128, 0.35);
  --error: #F87171;
  --error-bg: rgba(248, 113, 113, 0.12);
  --error-border: rgba(248, 113, 113, 0.35);
  --warning: #FBBF24;
  color-scheme: dark;
}

/* ── Base ── */
body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 13px;
  line-height: 1.5;
  margin: 0;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.brand-title-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
  border-radius: var(--radius-input);
}

.brand-title-link:hover {
  color: var(--text-primary);
}

.brand-title-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.brand-mark {
  display: block;
  color: #111111;
  flex-shrink: 0;
}

.brand-mark-header {
  width: 28px;
  height: 28px;
}

.brand-mark-auth {
  width: 48px;
  height: 48px;
}

html.dark .brand-mark {
  filter: invert(1);
}

/* ── Scrollbar ── */
.panel-scrollbar {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}
.panel-scrollbar::-webkit-scrollbar { width: 6px; }
.panel-scrollbar::-webkit-scrollbar-track { background: transparent; }
.panel-scrollbar::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
.panel-scrollbar:hover::-webkit-scrollbar-thumb {
  background: var(--text-tertiary);
}

.ad-container {
  padding: 0 12px;
}

/* ── App Layout ── */
.app-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow: hidden;
}

.editor-shell {
  position: relative;
}

.editor-section {
  min-width: 0;
}

.editor-body {
  display: flex;
  flex: 1;
  min-height: 0;
}

.top-bar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  font-size: 12px;
  color: var(--text-secondary);
  border-radius: var(--radius-input);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}
.top-bar-btn:hover {
  color: var(--text-primary);
}

.editor-onboarding-launch {
  white-space: nowrap;
}

.user-menu {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.editor-global-rail {
  width: var(--global-rail-width);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 8px 10px;
  background: color-mix(in srgb, var(--panel-bg) 94%, var(--canvas-bg) 6%);
  border-right: 1px solid var(--border-color);
}

.global-rail-group {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.global-rail-home {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 4px;
}

.global-rail-home-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  transition: var(--transition);
}

.global-rail-home-link:hover,
.global-rail-home-link:focus-visible {
  background: var(--accent-bg);
  outline: none;
}

.global-rail-group-bottom {
  margin-top: auto;
}

.global-rail-btn {
  position: relative;
  width: 100%;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: default;
  transition: transform 150ms ease, color 150ms ease, background 150ms ease, border-color 150ms ease;
}

.global-rail-btn:hover,
.global-rail-btn:focus-visible {
  color: var(--accent);
  background: transparent;
  border-color: transparent;
  transform: none;
  outline: none;
}

.global-rail-btn.is-active {
  color: var(--accent);
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.global-rail-btn.is-current {
  color: var(--accent);
  cursor: default;
}

.global-rail-btn.is-current:hover,
.global-rail-btn.is-current:focus-visible {
  transform: none;
}

.global-rail-btn svg {
  display: inline-flex;
  width: 18px;
  height: 18px;
}

.global-rail-icon,
.global-rail-avatar {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
}

.global-rail-avatar {
  background: linear-gradient(135deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 60%, #ffffff 40%) 100%);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 28%, transparent);
}

/* #login-open-label {
  display: none;
} */

.global-rail-btn::after,
.global-rail-btn[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%) translateX(-4px);
  padding: 6px 9px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--text-primary) 92%, transparent);
  color: var(--panel-bg);
  font-size: 11px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease, transform 120ms ease;
}

.global-rail-btn-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 2px solid var(--panel-bg);
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}

.global-rail-user-menu #user-dropdown {
  bottom: 0;
  top: auto;
  left: calc(100% + 12px);
  right: auto;
  margin-top: 0;
  margin-bottom: 0;
}

@media (hover: hover) {
  .global-rail-btn[data-tooltip]:hover::after,
  .global-rail-btn[data-tooltip]:focus-visible::after {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
  }
}

.mobile-editor-nav,
.tablet-editor-nav {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--panel-bg) 92%, transparent);
  border-bottom: 1px solid var(--border-color);
}

.editor-nav-button {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--elevated-bg);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.editor-nav-button.is-active {
  color: #fff;
  background: var(--accent);
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(13, 153, 255, 0.24);
}

.generate-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: #1A56DB;
  border: none;
  border-radius: var(--radius-input);
  cursor: pointer;
  transition: var(--transition);
}
.generate-btn:hover { background: #2045A8; }
.generate-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.workspace,
.workspace-columns {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
}

.left-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--panel-bg);
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.center-canvas {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  background: var(--canvas-bg);
  padding: 12px 16px;
  overflow: auto;
  min-width: 0;
}

.right-panel {
  width: var(--right-panel-width);
  flex-shrink: 0;
  background: var(--panel-bg);
  border-left: 1px solid var(--border-color);
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-section {
  padding: 8px;
}

.sidebar-label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

/* ── Surface Components ── */

.ai-recognize-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-btn, 6px);
  padding: 2px 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.ai-recognize-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.ai-recognize-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.ai-recognize-btn[data-coming-soon] {
  position: relative;
}
.ai-recognize-btn[data-coming-soon]::after {
  content: "开发中...";
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 400;
  color: #fff;
  background: rgba(0, 0, 0, 0.75);
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, visibility 0.15s ease;
  z-index: 50;
}
.ai-recognize-btn[data-coming-soon]:hover::after {
  opacity: 1;
  visibility: visible;
}
.surface-card {
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
}

.surface-soft {
  background: var(--elevated-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
}

/* ── Editor Groups ── */
.editor-group {
  overflow: hidden;
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  --editor-accent-rgb: 13, 153, 255;
  --editor-accent-strong: var(--accent);
  --editor-accent-soft: var(--accent-bg);
  --editor-accent-border: var(--accent-border);
}

.editor-group[data-editor-group="title"] {
  --editor-accent-rgb: 245, 158, 11;
  --editor-accent-strong: #f59e0b;
  --editor-accent-soft: rgba(245, 158, 11, 0.08);
  --editor-accent-border: rgba(245, 158, 11, 0.25);
}

.editor-group[data-editor-group="lyric"] {
  --editor-accent-rgb: 16, 185, 129;
  --editor-accent-strong: #10b981;
  --editor-accent-soft: rgba(16, 185, 129, 0.08);
  --editor-accent-border: rgba(16, 185, 129, 0.25);
}

.editor-group-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 8px;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
  border-top: 2px solid var(--editor-accent-strong);
  background: var(--editor-accent-soft);
}
.editor-group-header:hover {
  background: var(--editor-accent-soft);
}

.editor-group-static-header {
  cursor: default;
}

.editor-group-static-header:hover {
  background: transparent;
}

.editor-group-summary {
  display: grid;
  gap: 0.15rem;
}

.editor-group-caret {
  width: 0.7rem;
  height: 0.7rem;
  border-right: 2px solid var(--text-tertiary);
  border-bottom: 2px solid var(--text-tertiary);
  transform: rotate(45deg);
  transition: transform 180ms ease;
  flex-shrink: 0;
}

.editor-group.is-collapsed .editor-group-caret {
  transform: rotate(-45deg);
}

.editor-group.is-collapsed .editor-group-body {
  display: none;
}

.editor-group-body {
  border-top: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.editor-group:not(.is-collapsed) .editor-group-body {
  background: var(--editor-accent-soft);
  border-top-color: var(--editor-accent-border);
}

.editor-group.is-active {
  border-color: var(--border-color);
}

.editor-group.is-active .editor-group-header {
  background: var(--editor-accent-soft);
  border-top-color: var(--editor-accent-strong);
}

.editor-group.is-active .field-text {
  color: var(--text-secondary);
}

/* ── LRC Editor Panel ── */
.lrc-editor-panel {
  width: 100%;
  max-width: 44rem;
  flex-shrink: 0;
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  margin-bottom: 8px;
  overflow: hidden;
}

.lrc-editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--elevated-bg);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  cursor: pointer;
  user-select: none;
}

.lrc-editor-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
}

.lrc-editor-body {
  height: 180px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.lrc-editor-panel.is-collapsed .lrc-editor-body {
  display: none;
}

.lrc-editor-textarea {
  flex: 1;
  width: 100%;
  padding: 8px 10px;
  border: none;
  outline: none;
  resize: none;
  background: var(--panel-bg);
  color: var(--text-primary);
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 12px;
  line-height: 1.7;
  caret-color: var(--accent);
}

.lrc-editor-textarea:focus {
  background: color-mix(in srgb, var(--accent-bg) 50%, var(--panel-bg));
}

.lrc-editor-textarea::placeholder {
  color: var(--text-tertiary);
  font-family: "Inter", system-ui, sans-serif;
  font-style: italic;
}

.collapse-icon {
  transition: transform 200ms ease;
}
.lrc-editor-panel.is-collapsed .collapse-icon {
  transform: rotate(-90deg);
}

/* ── Preview ── */
.preview-panel {
  gap: 8px;
}

.preview-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
  width: 100%;
  max-width: 44rem;
}

.preview-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.preview-meta-button,
.preview-meta-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 22px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--elevated-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
}

.preview-meta-button {
  appearance: none;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.preview-meta-button:hover {
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text-primary);
}

.preview-meta-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.preview-meta-button.is-active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.96), rgba(37, 99, 235, 0.92));
  border-color: rgba(147, 197, 253, 0.78);
  color: #f8fbff;
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.35), 0 10px 24px rgba(37, 99, 235, 0.22);
}

.preview-meta-select {
  min-height: 22px;
  padding: 2px 24px 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--elevated-bg);
  color: var(--text-primary);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.preview-meta-select:focus {
  outline: none;
  border-color: rgba(59, 130, 246, 0.55);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.18);
}

select.input-base,
.preview-meta-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23999999' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

select.input-base {
  padding-right: 28px;
}

.preview-stage {
  width: 100%;
  max-width: 44rem;
  min-height: clamp(240px, 45vh, 480px);
  padding: 12px;
  border-radius: var(--radius-card);
  background: var(--canvas-bg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-canvas {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  border: 1px solid var(--border-color);
  aspect-ratio: 16 / 9;
  width: 100%;
  max-width: 44rem;
  transition: aspect-ratio 400ms ease;
  user-select: none;
}

.preview-canvas.portrait {
  aspect-ratio: 9 / 16;
  width: min(100%, 22rem);
}

.preview-canvas-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.preview-canvas-bg-image {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: translate(-50%, -50%) scale(1);
  transform-origin: center;
  user-select: none;
  pointer-events: none;
  cursor: grab;
}

.preview-canvas.has-image .preview-canvas-bg-image {
  pointer-events: auto;
}

.preview-canvas-bg-image.dragging {
  cursor: grabbing;
}

.preview-canvas-bg-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-canvas-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.15) 0%, transparent 30%, transparent 70%, rgba(0,0,0,0.25) 100%);
}

.preview-canvas.has-image .preview-canvas-overlay {
  pointer-events: none;
}

.preview-element {
  position: absolute;
  cursor: grab;
  padding: 4px 10px;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.7), 0 0 8px rgba(0,0,0,0.4);
  white-space: nowrap;
  transition: opacity 150ms ease, box-shadow 150ms ease, outline-color 150ms ease;
  pointer-events: auto;
  outline: 1px solid transparent;
  border-radius: 4px;
}

.preview-element[data-drag-tip]::after {
  content: attr(data-drag-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.85);
  color: #fff;
  font-size: 10px;
  line-height: 1;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease, bottom 150ms ease;
}

/* Flip tooltip below when element is near top of canvas */
.preview-element[data-drag-tip].tip-below::after {
  bottom: auto;
  top: calc(100% + 8px);
}

.preview-element:hover::after,
.preview-element:focus-visible::after,
.preview-element.is-active::after {
  opacity: 1;
}

.preview-element:active { cursor: grabbing; }

.preview-element.is-active {
  outline-color: rgba(255, 255, 255, 0.85);
  box-shadow: 0 0 0 2px var(--accent);
}

#preview-title.is-active {
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.5);
}

#preview-lyric.is-active {
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.5);
}

.preview-element.dragging {
  opacity: 0.7;
  transform: scale(1.05);
}

/* ── Drop Zone ── */
.drop-zone {
  border: 1.5px dashed var(--border-color);
  border-radius: var(--radius-card);
  background: transparent;
  padding: 1.25rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.drop-zone-compact {
  min-height: 100px;
  padding: 0.9rem 1rem;
}

.drop-zone-media {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.drop-zone-media.has-media {
  min-height: 56px;
  padding: 0.75rem;
  border-style: solid;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-bg);
}

.drop-zone.has-file {
  border-color: var(--success);
  background: var(--success-bg);
}

/* ── Media Grid ── */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 6px;
}

.media-add-btn {
  aspect-ratio: 1;
  border-radius: var(--radius-input);
  border: 1.5px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-tertiary);
  font-size: 22px;
  font-weight: 300;
  background: transparent;
  user-select: none;
}

.media-add-btn.media-add-btn-empty {
  aspect-ratio: auto;
  border-radius: var(--radius-card);
  min-height: 100px;
  padding: 0.9rem 1rem;
  text-align: center;
  flex-direction: column;
}

.media-grid:has(.media-add-btn-empty) {
  display: block;
}

.media-add-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-bg);
}

.media-add-btn.drag-over {
  border-color: var(--accent);
  background: var(--accent-bg);
}

.media-thumb {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-input);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--elevated-bg);
  cursor: grab;
  transition: var(--transition);
}

.media-thumb:hover { border-color: var(--accent); }
.media-thumb.dragging { opacity: 0.4; }
.media-thumb.drag-target { border-color: var(--accent); transform: scale(1.03); }

.media-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-thumb-video {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 10px;
  text-align: center;
  padding: 4px;
  word-break: break-all;
  line-height: 1.2;
}

.media-thumb-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  cursor: pointer;
  opacity: 0;
  transition: var(--transition);
}

.media-thumb:hover .media-thumb-remove { opacity: 1; }

.media-thumb-index {
  position: absolute;
  bottom: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  font-weight: 600;
}

/* ── Buttons ── */
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  padding: 6px 14px;
  font-weight: 600;
  font-size: 12px;
  color: #fff;
  border-radius: var(--radius-input);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.primary-button:hover { background: var(--accent-hover); }
.primary-button:disabled { opacity: 0.5; cursor: not-allowed; }

.primary-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 12px;
  color: var(--accent);
  border-radius: var(--radius-input);
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  cursor: pointer;
  transition: var(--transition);
}
.primary-ghost:hover { background: var(--accent-border); }

.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 12px;
  color: var(--text-secondary);
  border-radius: var(--radius-input);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}
.ghost-button:hover {
  color: var(--text-primary);
  background: var(--elevated-bg);
  border-color: var(--border-color);
}

/* ── Form Inputs ── */
.input-base,
.file-input,
.color-input {
  width: 100%;
  border: 1px solid var(--border-color);
  background: var(--panel-bg);
  padding: 5px 8px;
  color: var(--text-primary);
  border-radius: var(--radius-input);
  outline: none;
  font-size: 12px;
  transition: border-color var(--transition);
}

.input-base:focus,
.file-input:focus,
.color-input:focus {
  border-color: var(--accent);
}

.color-input {
  min-height: 32px;
  padding: 3px;
  cursor: pointer;
}

.color-ball-input-hidden {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.color-picker-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px dashed var(--text-tertiary);
  cursor: pointer;
  transition: var(--transition);
  background: conic-gradient(from 0deg, #EF4444, #F59E0B, #10B981, #3B82F6, #EF4444);
}
.color-picker-trigger:hover {
  border-color: var(--text-primary);
  transform: scale(1.15);
}

.color-ball-input {
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--border-color);
}

.color-ball-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-ball-input::-webkit-color-swatch {
  border: 0;
  border-radius: 999px;
}

.color-ball-input::-moz-color-swatch {
  border: 0;
  border-radius: 999px;
}

.field-text {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
}

.file-input::file-selector-button {
  margin-right: 8px;
  border: none;
  background: var(--accent);
  padding: 3px 8px;
  font-weight: 600;
  font-size: 11px;
  color: #fff;
  border-radius: var(--radius-input);
  cursor: pointer;
}

/* ── Radio Cards ── */
.radio-card {
  display: flex;
  border: 1px solid var(--border-color);
  background: var(--panel-bg);
  padding: 6px 8px;
  color: var(--text-secondary);
  border-radius: var(--radius-input);
  cursor: pointer;
  transition: var(--transition);
}

.peer:checked + .radio-card {
  border-color: var(--accent);
  background: var(--accent-bg);
  color: var(--accent);
}

/* ── Progress Bar ── */
.progress-track {
  height: 4px;
  border-radius: 2px;
  background: var(--border-color);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: 2px;
  background: var(--accent);
  transition: width 800ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Empty State ── */
.empty-box {
  border: 1px solid var(--border-color);
  background: var(--panel-bg);
  padding: 8px 10px;
  font-size: 12px;
  color: var(--text-secondary);
  border-radius: var(--radius-card);
}

/* ── Chip / Link ── */
.chip-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 3px 8px;
  color: var(--text-secondary);
  border-radius: var(--radius-input);
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  font-size: 11px;
  transition: var(--transition);
}
.chip-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── Color Presets ── */
.color-preset {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}
.color-preset:hover,
.color-preset.active {
  border-color: var(--text-primary);
  transform: scale(1.15);
}

/* ── Message Alert ── */
.msg-success {
  background: var(--success-bg);
  color: var(--success);
  padding: 6px 10px;
  border-radius: var(--radius-input);
  font-size: 11px;
  border: 1px solid var(--success-border);
}

.msg-error {
  background: var(--error-bg);
  color: var(--error);
  padding: 6px 10px;
  border-radius: var(--radius-input);
  font-size: 11px;
  border: 1px solid var(--error-border);
}

/* ── Range Slider ── */
.range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--border-color);
  outline: none;
}
.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid var(--panel-bg);
  box-shadow: 0 0 0 1px var(--accent);
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-overlay.hidden { display: none; }
.modal-content {
  background: var(--panel-bg);
  border-radius: var(--radius-card);
  padding: 24px;
  max-width: 480px;
  width: 90%;
}

.task-center-panel {
  position: fixed;
  top: var(--top-bar-height);
  right: 0;
  bottom: 0;
  z-index: 30;
  width: min(380px, 88vw);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background: color-mix(in srgb, var(--panel-bg) 92%, transparent);
  border-left: 1px solid var(--border-color);
  box-shadow: -16px 0 40px rgba(15, 23, 42, 0.18);
  backdrop-filter: blur(16px);
  transform: translateX(100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0.3s;
}

.task-center-backdrop {
  position: fixed;
  inset: 0;
  z-index: 25;
  background: rgba(15, 23, 42, 0.38);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.task-center-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.task-center-panel.open {
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
}

/* ── Task Center: Header ── */
.tc-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 14px 10px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}
.tc-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}
.tc-subtitle {
  margin: 2px 0 0;
  font-size: 11px;
  color: var(--text-tertiary);
}
.tc-header-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.tc-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: 150ms ease;
}
.tc-icon-btn:hover {
  background: var(--elevated-bg);
  color: var(--text-primary);
}
.tc-icon-btn svg {
  width: 16px;
  height: 16px;
}

/* ── Task Center: Stats Bar ── */
.tc-stats-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  font-size: 11px;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}
.tc-stat strong {
  font-weight: 600;
}
.tc-stat-completed strong { color: var(--success); }
.tc-stat-failed strong   { color: var(--error); }
.tc-stat-total strong   { color: var(--text-secondary); }

/* ── Task Center: Filter Bar ── */
.tc-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  gap: 8px;
  flex-shrink: 0;
}
.tc-filter-pills {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tc-filter-pills::-webkit-scrollbar { display: none; }
.tc-pill {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: 150ms ease;
}
.tc-pill:hover {
  background: var(--elevated-bg);
  border-color: var(--text-tertiary);
}
.tc-pill.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.tc-sort-btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px 8px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 11px;
  white-space: nowrap;
  cursor: pointer;
  transition: 150ms ease;
  flex-shrink: 0;
}
.tc-sort-btn:hover { background: var(--elevated-bg); }
.tc-sort-btn svg { width: 12px; height: 12px; }

/* ── Task Center: Task List ── */
.tc-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 6px 10px;
}
.tc-list:empty::before {
  content: none;
}

/* ── Task Center: Task Row (compact) ── */
.tc-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 8px;
  border-radius: var(--radius-card);
  border: 1px solid transparent;
  cursor: default;
  transition: 150ms ease;
  animation: tc-row-enter 0.2s ease-out both;
}
.tc-row:hover {
  background: var(--elevated-bg);
  border-color: var(--border-color);
}
.tc-row.is-selected {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
}
@keyframes tc-row-enter {
  from { opacity: 0; transform: translateY(5px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Thumbnail */
.tc-row-thumb {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: var(--elevated-bg);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tc-row-thumb img,
.tc-row-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tc-row-thumb-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--text-tertiary);
}
.tc-row-thumb-icon.is-running {
  color: var(--accent);
  animation: tc-spin 1.4s linear infinite;
}
.tc-row-thumb-icon.is-queued {
  color: var(--warning, #f59e0b);
}
.tc-row-thumb-icon.is-completed {
  color: var(--success);
}
.tc-row-thumb-icon.is-failed {
  color: var(--error);
}
@keyframes tc-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Info */
.tc-row-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.tc-row-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}
.tc-row-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--text-tertiary);
  line-height: 1;
}
.tc-row-status {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.5;
}
.tc-row-status.is-queued    { background: color-mix(in srgb, var(--warning, #f59e0b) 15%, transparent); color: var(--warning, #f59e0b); }
.tc-row-status.is-running   { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.tc-row-status.is-completed { background: color-mix(in srgb, var(--success) 12%, transparent); color: var(--success); }
.tc-row-status.is-failed     { background: color-mix(in srgb, var(--error) 12%, transparent); color: var(--error); }

/* Progress */
.tc-row-progress {
  height: 3px;
  border-radius: 2px;
  background: var(--border-color);
  overflow: hidden;
  margin-top: 3px;
  max-width: 160px;
}
.tc-row-progress-fill {
  height: 100%;
  border-radius: 2px;
  background: var(--accent);
  transition: width 0.4s ease;
  position: relative;
  overflow: hidden;
}
.tc-row-progress-fill::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.4) 50%, transparent 100%);
  animation: tc-shimmer 1.6s infinite;
}
@keyframes tc-shimmer {
  from { transform: translateX(-100%); }
  to   { transform: translateX(200%); }
}

/* Error message */
.tc-row-error {
  font-size: 10px;
  color: var(--error);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}

/* Actions */
.tc-row-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.tc-row-checkbox {
  width: 15px;
  height: 15px;
  border-radius: 4px;
  border: 1.5px solid var(--border-color);
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}
.tc-row-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  text-decoration: none;
  transition: 150ms ease;
}
.tc-row-action-btn:hover {
  background: var(--elevated-bg);
  color: var(--text-primary);
}
.tc-row-action-btn.is-download:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}
.tc-row-action-btn.is-delete:hover {
  background: color-mix(in srgb, var(--error) 10%, transparent);
  color: var(--error);
}
.tc-row-action-btn.is-retry:hover {
  background: color-mix(in srgb, var(--warning, #f59e0b) 10%, transparent);
  color: var(--warning, #f59e0b);
}
.tc-row-action-btn svg {
  width: 13px;
  height: 13px;
}

/* ── Task Center: Empty State ── */
.tc-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
  gap: 8px;
  flex: 1;
}
.tc-empty svg {
  width: 44px;
  height: 44px;
  color: var(--text-tertiary);
  opacity: 0.45;
}
.tc-empty p {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}
.tc-empty span {
  font-size: 11px;
  color: var(--text-tertiary);
}

/* ── Task Center: Batch Bar ── */
.tc-batch-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 14px;
  border-top: 1px solid var(--border-color);
  background: var(--panel-bg);
  flex-shrink: 0;
  animation: tc-batch-enter 0.18s ease-out;
}
@keyframes tc-batch-enter {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.tc-select-all {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
}
.tc-select-all input[type="checkbox"] {
  width: 15px;
  height: 15px;
  border-radius: 4px;
  accent-color: var(--accent);
}
.tc-batch-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}
.tc-selected-count {
  font-size: 11px;
  color: var(--text-tertiary);
}
.tc-batch-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: 150ms ease;
  text-decoration: none;
}
.tc-batch-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.tc-batch-btn:not(:disabled):hover { filter: brightness(1.1); }
.tc-batch-btn svg { width: 12px; height: 12px; }
.tc-batch-btn.is-danger {
  background: transparent;
  color: var(--error);
  border-color: color-mix(in srgb, var(--error) 40%, transparent);
}
.tc-batch-btn.is-danger:not(:disabled):hover {
  background: var(--error);
  color: #fff;
  border-color: var(--error);
}

/* ── Task Center: Library Grid Card ── */
.tc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  animation: tc-row-enter 0.2s ease-out both;
}
.tc-card:hover {
  border-color: var(--border-color);
}
.tc-card.is-selected {
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent);
}
.tc-card .tc-batch-checkbox {
  position: absolute;
  top: 6px;
  right: 6px;
  z-index: 2;
}
.tc-card .tc-batch-checkbox.visible input {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

/* Visual / thumbnail area */
.tc-card-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  overflow: hidden;
  background: var(--elevated-bg);
}
.tc-card-visual .tc-card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tc-card-visual .tc-card-thumb video,
.tc-card-visual .tc-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Badge overlay: orientation icon + date, bottom-left */
.tc-card-badge {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 60%, transparent 100%);
  pointer-events: none;
}
.tc-card-orient {
  display: inline-flex;
  align-items: center;
  color: rgba(255,255,255,0.9);
}
.tc-card-orient svg {
  width: 14px;
  height: 14px;
}
.tc-card-date {
  font-size: 10px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  line-height: 1;
}

/* Info below the thumbnail */
.tc-card-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 10px 10px;
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  background: var(--surface-color);
}
.tc-card-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}
.tc-card-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.tc-card-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: 150ms ease;
  text-decoration: none;
}
.tc-card-action-btn:hover {
  background: var(--elevated-bg);
  color: var(--text-primary);
}
.tc-card-action-btn.is-download:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}
.tc-card-action-btn.is-delete:hover {
  background: color-mix(in srgb, var(--error) 10%, transparent);
  color: var(--error);
}
.tc-card-action-btn svg {
  width: 14px;
  height: 14px;
}

/* ── Task Center: Notification Banner ── */
.tc-notification-banner {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 14px;
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border-top: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  font-size: 11px;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.tc-notification-banner.is-visible { display: flex; }
.tc-banner-actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.tc-banner-btn-ghost {
  padding: 3px 8px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 11px;
  cursor: pointer;
}
.tc-banner-btn-ghost:hover { color: var(--text-secondary); }
.tc-banner-btn-primary {
  padding: 3px 10px;
  border: none;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
}

/* ── Task Center: Loading ── */
.tc-loading {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 32px;
  font-size: 12px;
  color: var(--text-tertiary);
  flex: 1;
}
.tc-loading.is-visible { display: flex; }
.tc-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: tc-spin 0.8s linear infinite;
}

/* ── Task Center: Mobile FAB ── */
.tc-mobile-fab {
  display: none;
  position: fixed;
  right: 14px;
  bottom: 76px;
  z-index: 15;
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(13, 153, 255, 0.35);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: 150ms ease;
}
.tc-mobile-fab:hover { filter: brightness(1.08); transform: scale(1.04); }
.tc-mobile-fab svg { width: 20px; height: 20px; }
.tc-mobile-fab-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--error);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 17px;
  text-align: center;
  animation: tc-badge-pop 0.25s ease-out;
}
@keyframes tc-badge-pop {
  from { transform: scale(0); }
  to   { transform: scale(1); }
}
.global-rail-btn-badge.is-pulse {
  animation: tc-badge-pulse 1.5s ease-in-out 3;
}
@keyframes tc-badge-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(13, 153, 255, 0.5); }
  50%      { box-shadow: 0 0 0 6px rgba(13, 153, 255, 0); }
}

.task-center-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: nowrap;
}

.task-center-header > div:last-child {
  flex-shrink: 0;
}

.task-center-status {
  padding: 10px 12px;
  border-radius: var(--radius-card);
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  color: var(--text-secondary);
  font-size: 12px;
}

.task-center-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  padding-right: 4px;
}

.task-center-card {
  display: grid;
  gap: 10px;
  padding: 12px;
  border-radius: var(--radius-card);
  border: 1px solid var(--border-color);
  background: var(--panel-bg);
}

.task-center-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.task-center-card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.task-center-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  font-size: 11px;
  color: var(--text-secondary);
}

.task-center-card-message {
  font-size: 12px;
  color: var(--text-secondary);
}

.task-center-card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.task-status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--elevated-bg);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
}

/* ── Misc ── */
.meta-value {
  margin-top: 0.2rem;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.result-video {
  width: 100%;
  border-radius: var(--radius-card);
  background: #000;
}

.safe-bottom {
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.mobile-generate-bar {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 20;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--border-color) 82%, transparent);
  background: color-mix(in srgb, var(--panel-bg) 94%, transparent);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
  backdrop-filter: blur(16px);
}

.mobile-generate-copy {
  min-width: 0;
}

.mobile-generate-title {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
}

.mobile-generate-hint {
  margin: 2px 0 0;
  font-size: 11px;
  color: var(--text-secondary);
}

.mobile-generate-button {
  flex-shrink: 0;
}

/* ── Slogan ── */
.slogan {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-left: 8px;
  white-space: nowrap;
}

/* ── Help Icon ── */
.help-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 50%;
  background: var(--text-tertiary);
  color: var(--canvas-bg);
  text-decoration: none;
  vertical-align: middle;
  margin-left: 4px;
  line-height: 1;
}
.help-icon:hover {
  background: var(--accent);
  color: #fff;
}

/* ── LRC Help Tooltip ── */
.help-icon[data-tooltip-lrc] {
  position: relative;
  cursor: help;
}
.lrc-tooltip {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 480px;
  padding: 20px;
  border-radius: 10px;
  background: #2c2c2e;
  color: #f5f5f7;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.7;
  white-space: normal;
  text-align: left;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms ease, visibility 200ms ease;
  z-index: 200;
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}
:root:not(.dark) .lrc-tooltip {
  background: #f2f2f7;
  color: #1c1c1e;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.help-icon[data-tooltip-lrc]:hover .lrc-tooltip {
  opacity: 1;
  visibility: visible;
}
.lrc-tooltip h4 {
  font-size: 13px;
  font-weight: 600;
  color: inherit;
  margin: 0 0 8px;
}
.lrc-tooltip h5 {
  font-size: 12px;
  font-weight: 600;
  color: inherit;
  margin: 12px 0 4px;
}
.lrc-tooltip p {
  margin: 0 0 4px;
}
.lrc-tooltip pre {
  background: rgba(0,0,0,0.2);
  border-radius: 4px;
  padding: 6px 8px;
  font-size: 10px;
  line-height: 1.5;
  margin: 4px 0 6px;
  overflow-x: auto;
  color: inherit;
}
:root:not(.dark) .lrc-tooltip pre {
  background: rgba(0,0,0,0.06);
}
.lrc-tooltip ul {
  padding-left: 16px;
  margin: 2px 0 4px;
}
.lrc-tooltip ul.warn {
  color: #ff9f0a;
  padding-left: 16px;
  margin: 2px 0 0;
}
:root:not(.dark) .lrc-tooltip ul.warn {
  color: #d4700a;
}

/* ── Task Delete Button ── */
.task-delete-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 4px;
  border-radius: 4px;
  line-height: 1;
}
.task-delete-btn:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

body.editor-onboarding-open {
  overflow: hidden;
}

.editor-onboarding {
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
}

.editor-onboarding.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.editor-onboarding-scrim {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.66);
}

.editor-onboarding-highlight {
  position: absolute;
  border-radius: 18px;
  border: 2px solid #f59e0b;
  box-shadow: 0 0 0 6px rgba(245, 158, 11, 0.14);
  pointer-events: none;
}

.editor-onboarding-card {
  position: absolute;
  width: min(304px, calc(100vw - 32px));
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: rgba(255, 255, 255, 0.98);
  color: #0f172a;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.34);
  pointer-events: auto;
}

html.dark .editor-onboarding-card {
  background: rgba(15, 23, 42, 0.96);
  color: #e2e8f0;
  border-color: rgba(148, 163, 184, 0.24);
}

.editor-onboarding-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.editor-onboarding-progress {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  background: #fff7ed;
  color: #c2410c;
  font-size: 12px;
  font-weight: 700;
}

html.dark .editor-onboarding-progress {
  background: rgba(249, 115, 22, 0.16);
  color: #fdba74;
}

.editor-onboarding-skip-link {
  padding: 0;
  border: none;
  background: transparent;
  color: #64748b;
  font-size: 12px;
  cursor: pointer;
}

html.dark .editor-onboarding-skip-link {
  color: #94a3b8;
}

.editor-onboarding-title {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.3;
  font-weight: 700;
}

.editor-onboarding-description {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: #475569;
}

html.dark .editor-onboarding-description {
  color: #cbd5e1;
}

.editor-onboarding-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

/* ── Footer ── */
.site-footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border-color);
  background: #FFFFFF;
  padding: 12px 20px;
}
html.dark .site-footer {
  background: #000000;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-links {
  display: flex;
  gap: 16px;
  font-size: 12px;
}
.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-copyright {
  display: flex;
  gap: 16px;
  font-size: 11px;
  color: var(--text-tertiary);
  flex-wrap: nowrap;
  align-items: center;
}
.footer-copyright a {
  color: var(--text-tertiary);
  text-decoration: none;
}
.footer-copyright a:hover {
  color: var(--text-secondary);
}
.footer-theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  color: var(--text-tertiary);
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  vertical-align: middle;
}
.footer-theme-btn:hover,
.footer-theme-btn:focus-visible {
  color: var(--text-secondary);
  outline: none;
}
.footer-theme-btn svg {
  width: 14px;
  height: 14px;
}

/* ── Responsive ── */
@media (max-width: 1023px) {
  .tablet-editor-nav {
    display: flex;
  }
  .editor-global-rail {
    width: 48px;
    padding: 10px 6px 8px;
  }
  .global-rail-btn {
    min-height: 36px;
    border-radius: 10px;
  }
  .global-rail-icon,
  .global-rail-avatar {
    width: 22px;
    height: 22px;
  }
  .global-rail-btn svg {
    width: 16px;
    height: 16px;
  }
  .global-rail-home-link {
    width: 28px;
    height: 28px;
  }
  .workspace-columns {
    flex-direction: column;
    overflow: auto;
  }
  .left-sidebar {
    width: 100%;
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    padding: 6px;
  }
  .right-panel {
    width: 100%;
    max-height: none;
    border-left: none;
    border-top: 1px solid var(--border-color);
    order: 2;
    padding: 6px;
  }
  .center-canvas {
    order: 1;
    flex: 1;
    min-height: 300px;
    padding: 10px 12px;
  }
  .tablet-editor-nav {
    gap: 6px;
    padding: 8px 10px;
  }
  .preview-canvas {
    max-width: 38rem;
  }
  .preview-canvas.portrait {
    width: min(72vw, 18rem);
  }
  .lrc-editor-body {
    height: 140px;
  }
  .ad-container {
    display: none;
  }
  .editor-shell[data-tablet-panel="assets"] .editor-section-style {
    display: none;
  }
  .editor-shell[data-tablet-panel="style"] .editor-section-assets {
    display: none;
  }
}

@media (max-width: 639px) {
  .app-layout {
    overflow: visible;
  }
  .editor-body {
    display: block;
  }
  .editor-global-rail {
    display: none;
  }
  .mobile-editor-nav {
    display: flex;
    position: sticky;
    top: 0;
    z-index: 8;
  }
  .tablet-editor-nav {
    display: none;
  }
  .workspace {
    display: block;
    overflow: visible;
    padding-bottom: 104px;
  }
  .workspace-columns {
    display: block;
    overflow: visible;
  }
  .editor-section-assets,
  .editor-section-preview,
  .editor-section-style {
    display: none;
  }
  .editor-shell[data-mobile-section="assets"] .editor-section-assets {
    display: flex;
  }
  .editor-shell[data-mobile-section="preview"] .editor-section-preview {
    display: flex;
  }
  .editor-shell[data-mobile-section="style"] .editor-section-style {
    display: flex;
  }
  .left-sidebar,
  .right-panel,
  .center-canvas {
    width: 100%;
    border: none;
    padding: 10px 12px 0;
    background: transparent;
  }
  .left-sidebar,
  .right-panel {
    gap: 12px;
  }
  .preview-toolbar,
  .preview-stage,
  .lrc-editor-panel {
    max-width: none;
  }
  .preview-stage {
    min-height: 0;
    padding: 10px;
  }
  .preview-meta {
    width: 100%;
  }
  .preview-meta-button,
  .preview-meta-select {
    min-height: 28px;
  }
  .mobile-generate-bar {
    display: flex;
  }
  .task-center-panel {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-width: none;
    max-height: 85vh;
    border-left: none;
    border-top: 1px solid var(--border-color);
    border-radius: 14px 14px 0 0;
    box-shadow: 0 -6px 28px rgba(15, 23, 42, 0.16);
    transform: translateY(100%);
  }
  .task-center-panel.open {
    transform: translateY(0);
  }
  .task-center-backdrop {
    background: rgba(15, 23, 42, 0.5);
  }
  .tc-mobile-fab {
    display: flex;
  }
  .tc-row { padding: 8px 6px; gap: 8px; }
  .tc-row-thumb { width: 36px; height: 36px; }
  .tc-row-progress { max-width: 120px; }
  #tc-library-list { grid-template-columns: repeat(2, 1fr); }
}