:root {
  --pdf-primary: #dc2626;
  --pdf-primary-hover: #b91c1c;
  --pdf-bg-card: #ffffff;
  --pdf-border: #e2e8f0;
  --pdf-text-main: #0f172a;
  --pdf-text-muted: #64748b;
  --pdf-pill-bg: #f8fafc;
  --pdf-pill-hover: #e2e8f0;
  --pdf-result-bg: #f8fafc;
  --pdf-hl-bg: #fef2f2;
  --pdf-hl-border: #fecaca;
  --pdf-hl-text: #991b1b;
  --pdf-accent-subtle: #fef2f2;
  --pdf-accent-border: #fee2e2;
}

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

.pdf-editor-card {
  background: var(--pdf-bg-card);
  border: 1px solid var(--pdf-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 */
.pdf-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(--pdf-border);
}

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

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

.pdf-pill-btn:hover {
  background: var(--pdf-pill-hover);
  border-color: var(--pdf-primary);
}

/* Cross-link Banner */
.pdf-callout-banner {
  background: var(--pdf-pill-bg);
  border: 1px solid var(--pdf-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;
}

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

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

.pdf-dropzone:hover,
.pdf-dropzone.pdf-drag-over {
  border-color: var(--pdf-primary);
  background: var(--pdf-hl-bg);
}

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

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

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

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

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

/* Document Details Staging */
.pdf-doc-panel {
  background: var(--pdf-pill-bg);
  border: 1px solid var(--pdf-border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
}

.pdf-doc-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pdf-doc-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--pdf-text-main);
}

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

/* Compression Settings */
.pdf-settings-panel {
  border-top: 1px solid var(--pdf-border);
  padding-top: 1.25rem;
  margin-bottom: 1.5rem;
}

.pdf-section-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--pdf-text-main);
}

.pdf-tiers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

@media (min-width: 600px) {
  .pdf-tiers-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pdf-tier-card {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  border: 2px solid var(--pdf-border);
  border-radius: 8px;
  padding: 0.85rem;
  cursor: pointer;
  background: #ffffff;
  transition: all 0.15s ease;
}

.pdf-tier-card:hover {
  border-color: #cbd5e1;
}

.pdf-tier-card.pdf-tier-selected {
  border-color: var(--pdf-primary);
  background: var(--pdf-accent-subtle);
}

.pdf-tier-card input[type="radio"] {
  accent-color: var(--pdf-primary);
  margin-top: 0.15rem;
  cursor: pointer;
}

.pdf-tier-body {
  display: flex;
  flex-direction: column;
}

.pdf-tier-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--pdf-text-main);
}

.pdf-tier-desc {
  font-size: 0.75rem;
  color: var(--pdf-text-muted);
  line-height: 1.35;
  margin-top: 0.2rem;
}

.pdf-options-row {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--pdf-text-main);
}

.pdf-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

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

/* Action Row */
.pdf-action-row {
  margin-top: 1.25rem;
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

.pdf-tip-box {
  background: var(--pdf-bg-card);
  border: 1px solid var(--pdf-border);
  border-radius: 8px;
  padding: 1.25rem;
  font-size: 0.85rem;
}

.pdf-tip-title {
  margin: 0 0 0.35rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--pdf-primary);
}

.pdf-tip-box p {
  margin: 0;
  line-height: 1.5;
  color: var(--pdf-text-muted);
}

/* Ad Slot Container (Zero CLS) */
.pdf-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"] {
  --pdf-primary: #da8181;
  --pdf-primary-hover: #da8181;
  --pdf-bg-card: var(--tf-surface);
  --pdf-border: var(--tf-surface);
  --pdf-text-main: var(--tf-ink);
  --pdf-text-muted: var(--tf-ink-faint);
  --pdf-pill-bg: var(--tf-surface);
  --pdf-pill-hover: var(--tf-surface);
  --pdf-result-bg: var(--tf-surface);
  --pdf-hl-bg: var(--tf-surface);
  --pdf-hl-border: var(--tf-surface);
  --pdf-hl-text: #d77676;
  --pdf-accent-subtle: var(--tf-surface);
  --pdf-accent-border: var(--tf-surface);
}