:root {
  --pse-brand: #be123c;
  --pse-brand-hover: #9f1239;
  --pse-bg: #f8fafc;
  --pse-card-bg: #ffffff;
  --pse-border: #e2e8f0;
  --pse-border-focus: #fda4af;
  --pse-text: #0f172a;
  --pse-text-muted: #64748b;
  --pse-success: #059669;
  --pse-accent-subtle: #fff1f2;
  --pse-accent-border: #fecdd3;
  --pse-accent-text: #9f1239;
  --pse-pill-bg: #f8fafc;
  --pse-pill-hover: #e2e8f0;
  --pse-result-bg: #f8fafc;
}

.pse-tool-container {
  max-width: 900px;
  margin: 0 auto 3rem auto;
  padding: 0 1rem;
  font-family: inherit;
  color: var(--pse-text);
  box-sizing: border-box;
}

.pse-editor-card {
  background: var(--pse-card-bg);
  border: 1px solid var(--pse-border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* Demo Presets Bar */
.pse-presets-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--pse-border);
}

.pse-presets-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--pse-text-muted);
}

.pse-pill-btn {
  background: var(--pse-pill-bg);
  border: 1px solid var(--pse-border);
  color: var(--pse-text);
  border-radius: 9999px;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pse-pill-btn:hover:not(:disabled) {
  background: var(--pse-pill-hover);
  border-color: #cbd5e1;
}

.pse-pill-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Cross-link Banner */
.pse-callout-banner {
  background: var(--pse-accent-subtle);
  border: 1px solid var(--pse-accent-border);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.pse-callout-banner a {
  color: var(--pse-brand);
  font-weight: 700;
  text-decoration: underline;
}

/* Dropzone */
.pse-dropzone {
  border: 2px dashed var(--pse-border);
  border-radius: 10px;
  padding: 2.25rem 1.5rem;
  text-align: center;
  background: var(--pse-pill-bg);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
  margin-bottom: 1.25rem;
}

.pse-dropzone:hover,
.pse-dropzone.pse-drag-over {
  border-color: var(--pse-brand);
  background-color: var(--pse-accent-subtle);
}

.pse-drop-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.pse-drop-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  color: var(--pse-text);
}

.pse-drop-sub {
  color: var(--pse-text-muted);
  font-size: 0.85rem;
  margin: 0 0 1rem;
}

.pse-browse-btn {
  background: #ffffff;
  border: 1px solid var(--pse-border);
  color: var(--pse-brand);
  font-weight: 700;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pse-browse-btn:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

/* Document Header & Mode Selection */
.pse-doc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--pse-pill-bg);
  border: 1px solid var(--pse-border);
  border-radius: 8px;
  margin-bottom: 1.25rem;
}

.pse-file-info-badge {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pse-doc-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--pse-text);
}

.pse-doc-meta {
  font-size: 0.8rem;
  color: var(--pse-text-muted);
}

.pse-mode-toggle {
  display: flex;
  background: var(--pse-pill-hover);
  padding: 2px;
  border-radius: 8px;
  gap: 2px;
}

.pse-mode-btn {
  border: none;
  background: transparent;
  color: var(--pse-text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pse-mode-btn.pse-active {
  background: #ffffff;
  color: var(--pse-text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

/* Range Input Section */
.pse-range-section {
  background: #ffffff;
  border: 1px solid var(--pse-border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.25rem;
}

.pse-range-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.pse-range-label {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--pse-text);
}

.pse-range-input {
  flex: 1;
  min-width: 180px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--pse-border);
  border-radius: 6px;
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
}

.pse-range-input:focus {
  border-color: var(--pse-border-focus);
  box-shadow: 0 0 0 3px rgba(253, 164, 175, 0.25);
}

.pse-quick-btn-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pse-quick-label {
  font-size: 0.8rem;
  color: var(--pse-text-muted);
  font-weight: 500;
}

/* Visual Page Grid */
.pse-grid-section {
  margin-bottom: 1.25rem;
}

.pse-section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.pse-sub-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0;
  color: var(--pse-text);
}

.pse-hint {
  font-size: 0.8rem;
  color: var(--pse-text-muted);
}

.pse-page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.85rem;
  max-height: 440px;
  overflow-y: auto;
  padding: 0.75rem;
  background: var(--pse-pill-bg);
  border: 1px solid var(--pse-border);
  border-radius: 8px;
}

.pse-empty-note {
  grid-column: 1 / -1;
  padding: 2rem 1rem;
  text-align: center;
  color: var(--pse-text-muted);
  font-size: 0.9rem;
}

/* Interactive Page Card */
.pse-page-card {
  background: #ffffff;
  border: 2px solid var(--pse-border);
  border-radius: 8px;
  padding: 0.65rem;
  cursor: pointer;
  transition: all 0.18s ease;
  user-select: none;
  display: flex;
  flex-direction: column;
}

.pse-page-card:hover {
  border-color: #94a3b8;
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
}

.pse-page-card.pse-card-selected {
  border-color: var(--pse-brand);
  background: var(--pse-accent-subtle);
  box-shadow: 0 0 0 1px var(--pse-brand);
}

.pse-card-thumb {
  aspect-ratio: 8.5 / 11;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 6px;
  overflow: hidden;
}

.pse-card-thumb-header {
  height: 5px;
  width: 50%;
  background: #cbd5e1;
  border-radius: 2px;
}

.pse-card-thumb-body {
  height: 3px;
  width: 90%;
  background: #e2e8f0;
  border-radius: 1px;
  box-shadow: 0 5px 0 #e2e8f0, 0 10px 0 #e2e8f0, 0 15px 0 #e2e8f0, 0 20px 0 #e2e8f0;
}

.pse-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pse-card-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--pse-text);
}

.pse-card-checkbox {
  accent-color: var(--pse-brand);
  cursor: pointer;
}

/* Action Button */
.pse-action-row {
  margin-top: 1.25rem;
}

.pse-primary-btn {
  width: 100%;
  padding: 0.9rem 1.5rem;
  background: var(--pse-brand);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.pse-primary-btn:hover:not(:disabled) {
  background: var(--pse-brand-hover);
}

.pse-primary-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Results Card (Full-width Below Editor) */
.pse-results-card {
  background: var(--pse-result-bg);
  border: 1px solid var(--pse-border);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.pse-highlight-box {
  background: var(--pse-accent-subtle);
  border: 1px solid var(--pse-accent-border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.pse-hl-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pse-accent-text);
  margin-bottom: 0.25rem;
}

.pse-hl-val {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--pse-accent-text);
  margin-bottom: 0.25rem;
}

.pse-hl-sub {
  font-size: 0.95rem;
  color: var(--pse-text-muted);
}

.pse-specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

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

.pse-spec-item {
  background: var(--pse-card-bg);
  border: 1px solid var(--pse-border);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pse-spec-name {
  font-size: 0.75rem;
  color: var(--pse-text-muted);
  font-weight: 600;
}

.pse-spec-val {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--pse-text);
}

.pse-spec-sub {
  font-size: 0.75rem;
  color: var(--pse-text-muted);
}

.pse-tip-box {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 8px;
  padding: 1.25rem;
  font-size: 0.85rem;
  color: #166534;
}

.pse-tip-title {
  margin: 0 0 0.35rem;
  font-size: 0.9rem;
  font-weight: 700;
}

.pse-tip-box p {
  margin: 0;
  line-height: 1.5;
}

/* Ad Slot Container (Zero CLS) */
.pse-ad {
  min-height: 280px;
  margin: 32px 0;
  text-align: center;
  overflow: hidden;
}

/* tf:dark-palette — generated by migrate_chrome.py */
/* Neutrals inherit the shared chrome tokens so all tools share one
   ground; brand hues are kept and lightened, never inverted. */
[data-theme="dark"] {
  --pse-brand: #da8196;
  --pse-brand-hover: #d6738f;
  --pse-bg: var(--tf-surface);
  --pse-card-bg: var(--tf-surface);
  --pse-border: var(--tf-surface);
  --pse-border-focus: #da818c;
  --pse-text: var(--tf-ink);
  --pse-text-muted: var(--tf-ink-faint);
  --pse-success: #62d2af;
  --pse-accent-subtle: var(--tf-surface);
  --pse-accent-border: var(--tf-surface);
  --pse-accent-text: #d6738f;
  --pse-pill-bg: var(--tf-surface);
  --pse-pill-hover: var(--tf-surface);
  --pse-result-bg: var(--tf-surface);
}