:root {
  --df-primary: #4f46e5;
  --df-primary-hover: #4338ca;
  --df-bg-card: #ffffff;
  --df-border: #e2e8f0;
  --df-text-main: #0f172a;
  --df-text-muted: #64748b;
  --df-pill-bg: #f1f5f9;
  --df-pill-hover: #e2e8f0;
  --df-result-bg: #f8fafc;
  --df-add-bg: #dcfce7;
  --df-add-text: #166534;
  --df-del-bg: #fee2e2;
  --df-del-text: #991b1b;
  --df-mod-bg: #fef9c3;
  --df-mod-text: #854d0e;
}

.df-tool-container {
  max-width: 960px;
  margin: 0 auto 3rem auto;
  font-family: inherit;
  color: var(--df-text-main);
}

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

.df-presets-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--df-border);
}

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

.df-pill-btn {
  background: var(--df-pill-bg);
  border: 1px solid var(--df-border);
  color: var(--df-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;
}

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

.df-options-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--df-text-main);
}

.df-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
}

.df-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 680px) {
  .df-input-grid {
    grid-template-columns: 1fr;
  }
}

.df-input-col label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--df-text-main);
}

.df-req {
  color: #dc2626;
}

.df-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--df-border);
  border-radius: 8px;
  background: var(--df-bg-card);
  color: var(--df-text-main);
  font-size: 0.85rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  box-sizing: border-box;
  resize: vertical;
  line-height: 1.5;
}

.df-textarea:focus {
  outline: none;
  border-color: var(--df-primary);
}

.df-action-row {
  display: flex;
  gap: 0.75rem;
}

.df-primary-btn {
  flex: 2;
  background: var(--df-primary);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease;
}

.df-primary-btn:hover {
  background: var(--df-primary-hover);
}

.df-secondary-btn {
  background: var(--df-pill-bg);
  color: var(--df-text-main);
  border: 1px solid var(--df-border);
  border-radius: 8px;
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.df-results-card {
  background: var(--df-result-bg);
  border: 1px solid var(--df-border);
  border-radius: 12px;
  padding: 1.75rem;
}

.df-stats-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.df-badge {
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
}

.df-badge-add { background: var(--df-add-bg); color: var(--df-add-text); }
.df-badge-del { background: var(--df-del-bg); color: var(--df-del-text); }
.df-badge-mod { background: var(--df-mod-bg); color: var(--df-mod-text); }
.df-badge-same { background: var(--df-pill-bg); color: var(--df-text-muted); }

.df-table-card {
  background: var(--df-bg-card);
  border: 1px solid var(--df-border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

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

.df-diff-wrap {
  overflow-x: auto;
  border: 1px solid var(--df-border);
  border-radius: 6px;
  background: var(--df-bg-card);
}

.df-diff-pane {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.6;
}

.df-diff-row {
  display: flex;
  border-bottom: 1px solid var(--df-border);
}

.df-diff-row:last-child {
  border-bottom: none;
}

.df-line-num {
  width: 45px;
  min-width: 45px;
  padding: 0.2rem 0.5rem;
  text-align: right;
  color: var(--df-text-muted);
  background: var(--df-pill-bg);
  border-right: 1px solid var(--df-border);
  user-select: none;
  font-size: 0.75rem;
}

.df-line-type {
  width: 25px;
  min-width: 25px;
  text-align: center;
  font-weight: 700;
  user-select: none;
  border-right: 1px solid var(--df-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.df-line-code {
  flex: 1;
  padding: 0.2rem 0.75rem;
  white-space: pre-wrap;
  word-break: break-all;
}

.df-row-add {
  background: var(--df-add-bg);
  color: var(--df-add-text);
}

.df-row-del {
  background: var(--df-del-bg);
  color: var(--df-del-text);
}

.df-row-mod {
  background: var(--df-mod-bg);
  color: var(--df-mod-text);
}

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

.df-tip-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin: 0 0 0.25rem 0;
  color: var(--df-primary);
}

.df-tip-box p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--df-text-muted);
  line-height: 1.5;
}

.df-ad {
  overflow: hidden;
  min-height: 280px;
  margin: 32px 0;
  text-align: center;
}
/* 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"] {
  --df-primary: #8681da;
  --df-primary-hover: #8781da;
  --df-bg-card: var(--tf-surface);
  --df-border: var(--tf-surface);
  --df-text-main: var(--tf-ink);
  --df-text-muted: var(--tf-ink-faint);
  --df-pill-bg: var(--tf-surface);
  --df-pill-hover: var(--tf-surface);
  --df-result-bg: var(--tf-surface);
  --df-add-bg: var(--tf-surface);
  --df-add-text: #59cf86;
  --df-del-bg: var(--tf-surface);
  --df-del-text: #d77676;
  --df-mod-bg: var(--tf-surface);
  --df-mod-text: #d0995c;
}