/* ============================================================
   TulBD - Text Duplicate Line Remover Suite Styles
   Modern, Ultra-Responsive, Dark-Mode Ready
   ============================================================ */

.tdr-container {
  max-width: 1200px;
  margin: 0 auto 30px;
  padding: 0 16px;
  font-family: var(--tb-font, 'Inter', system-ui, sans-serif);
}

.tdr-card {
  background: var(--tb-card, #ffffff);
  border: 1px solid var(--tb-border, #e2e8f0);
  border-radius: var(--tb-radius-lg, 20px);
  padding: 24px 28px;
  box-shadow: var(--tb-shadow, 0 4px 20px -2px rgba(15, 23, 42, .08));
  transition: var(--tb-transition, 0.2s ease);
}

/* Header & Presets */
.tdr-header {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
  width: 100% !important;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--tb-border, #e2e8f0);
}

.tdr-badge-title {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 12px;
  text-align: center !important;
  width: 100% !important;
}

.tdr-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border: 1px solid rgba(59, 130, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #2563eb;
  flex-shrink: 0;
}

.tdr-badge-title h2,
.tdr-title-wrap h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--tb-text, #0f172a);
  margin: 0;
  text-align: center !important;
}

.tdr-subtitle,
.tdr-title-wrap p {
  margin: 8px auto 0 auto !important;
  font-size: 13.5px;
  color: var(--tb-muted, #64748b);
  text-align: center !important;
  max-width: 820px;
  line-height: 1.5;
  width: 100% !important;
}

.tdr-privacy-badge,
[class*="privacy-badge"],
.tdr-card .privacy-badge {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  height: 0 !important;
  padding: 0 !important;
  margin: 0 !important;
}

/* Preset Chips */
.tdr-presets {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tdr-presets-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--tb-muted, #64748b);
}

.tdr-chip {
  background: var(--tb-surface, #f8fafc);
  border: 1px solid var(--tb-border, #e2e8f0);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--tb-text, #0f172a);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tdr-chip:hover {
  background: var(--tb-primary-light, #eef5ff);
  border-color: var(--tb-primary, #1769e0);
  color: var(--tb-primary, #1769e0);
}

/* Controls Toolbar */
.tdr-toolbar {
  background: var(--tb-surface, #f8fafc);
  border: 1px solid var(--tb-border, #e2e8f0);
  border-radius: 14px;
  padding: 16px 20px;
  margin-bottom: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tdr-modes-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tdr-mode-label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--tb-text, #0f172a);
  margin-right: 4px;
}

.tdr-mode-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 8px;
  border: 1px solid var(--tb-border, #e2e8f0);
  background: var(--tb-card, #ffffff);
  color: var(--tb-text, #0f172a);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.tdr-mode-btn.active {
  background: var(--tb-primary, #1769e0);
  color: #ffffff;
  border-color: var(--tb-primary, #1769e0);
  box-shadow: 0 2px 8px rgba(23, 105, 224, 0.25);
}

.tdr-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--tb-border, #e2e8f0);
}

.tdr-check-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--tb-text, #0f172a);
  cursor: pointer;
  user-select: none;
}

.tdr-check-label input[type="checkbox"],
.tdr-check-label input[type="radio"] {
  width: 17px;
  height: 17px;
  accent-color: var(--tb-primary, #1769e0);
  cursor: pointer;
}

.tdr-select-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--tb-text, #0f172a);
}

.tdr-select {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--tb-border, #e2e8f0);
  background: var(--tb-card, #ffffff);
  color: var(--tb-text, #0f172a);
  font-size: 13px;
  outline: none;
  cursor: pointer;
}

/* Metric Stats Row */
.tdr-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.tdr-stat-box {
  background: var(--tb-surface, #f8fafc);
  border: 1px solid var(--tb-border, #e2e8f0);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.tdr-stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.stat-icon-orig { background: #eff6ff; color: #2563eb; }
.stat-icon-uniq { background: #ecfdf5; color: #059669; }
.stat-icon-dups { background: #fef2f2; color: #dc2626; }
.stat-icon-rate { background: #fefce8; color: #ca8a04; }

.tdr-stat-info {
  display: flex;
  flex-direction: column;
}

.tdr-stat-num {
  font-size: 20px;
  font-weight: 800;
  color: var(--tb-text, #0f172a);
  line-height: 1.2;
}

.tdr-stat-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--tb-muted, #64748b);
  margin-top: 2px;
}

/* Editor Columns (Split View) */
.tdr-panes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

@media (max-width: 820px) {
  .tdr-panes-grid {
    grid-template-columns: 1fr;
  }
}

.tdr-pane {
  display: flex;
  flex-direction: column;
  background: var(--tb-surface, #f8fafc);
  border: 1px solid var(--tb-border, #e2e8f0);
  border-radius: 14px;
  overflow: hidden;
}

.tdr-pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.02);
  border-bottom: 1px solid var(--tb-border, #e2e8f0);
  flex-wrap: wrap;
  gap: 8px;
}

.tdr-pane-label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--tb-text, #0f172a);
  display: flex;
  align-items: center;
  gap: 8px;
}

.tdr-pane-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tdr-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid var(--tb-border, #e2e8f0);
  background: var(--tb-card, #ffffff);
  color: var(--tb-text, #0f172a);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tdr-action-btn:hover {
  background: var(--tb-surface, #f8fafc);
  border-color: var(--tb-primary, #1769e0);
  color: var(--tb-primary, #1769e0);
}

.tdr-btn-primary {
  background: var(--tb-primary, #1769e0) !important;
  color: #ffffff !important;
  border-color: var(--tb-primary, #1769e0) !important;
}

.tdr-btn-primary:hover {
  background: var(--tb-primary-hover, #1256bd) !important;
}

.tdr-textarea-wrap {
  position: relative;
  flex: 1;
}

.tdr-textarea {
  width: 100%;
  box-sizing: border-box;
  min-height: 380px;
  padding: 16px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13.5px;
  line-height: 1.6;
  border: none;
  background: var(--tb-card, #ffffff);
  color: var(--tb-text, #0f172a);
  resize: vertical;
  outline: none;
}

.tdr-textarea:focus {
  background: #ffffff;
}

.tdr-pane-foot {
  padding: 8px 16px;
  background: rgba(0, 0, 0, 0.02);
  border-top: 1px solid var(--tb-border, #e2e8f0);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--tb-muted, #64748b);
}

/* Central Swap Bar */
.tdr-middle-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}

.tdr-btn-swap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--tb-border, #e2e8f0);
  background: var(--tb-card, #ffffff);
  color: var(--tb-text, #0f172a);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: all 0.18s ease;
}

.tdr-btn-swap:hover {
  border-color: var(--tb-primary, #1769e0);
  color: var(--tb-primary, #1769e0);
  transform: translateY(-1px);
}

/* Toast Message */
.tdr-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #0f172a;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 9999;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.tdr-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Dark Mode Overrides (TulBD Unified Dark Theme)
   ========================================================================== */
[data-theme="dark"] .tdr-container,
.dark-theme .tdr-container,
body.dark-theme .tdr-container {
  --tb-card: #1e293b;
  --tb-surface: #0f172a;
  --tb-border: #334155;
  --tb-text: #f8fafc;
  --tb-muted: #94a3b8;
  color: #f8fafc;
}

[data-theme="dark"] .tdr-card,
.dark-theme .tdr-card,
body.dark-theme .tdr-card {
  background: #1e293b;
  border-color: #334155;
  box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .tdr-header,
.dark-theme .tdr-header,
body.dark-theme .tdr-header {
  border-bottom-color: #334155;
}

[data-theme="dark"] .tdr-badge-title h2,
[data-theme="dark"] .tdr-title-wrap h2,
.dark-theme .tdr-badge-title h2,
.dark-theme .tdr-title-wrap h2,
body.dark-theme .tdr-badge-title h2,
body.dark-theme .tdr-title-wrap h2 {
  color: #f8fafc;
}

[data-theme="dark"] .tdr-subtitle,
[data-theme="dark"] .tdr-title-wrap p,
.dark-theme .tdr-subtitle,
.dark-theme .tdr-title-wrap p,
body.dark-theme .tdr-subtitle,
body.dark-theme .tdr-title-wrap p {
  color: #94a3b8;
}

[data-theme="dark"] .tdr-presets-label,
.dark-theme .tdr-presets-label,
body.dark-theme .tdr-presets-label {
  color: #cbd5e1;
}

[data-theme="dark"] .tdr-chip,
.dark-theme .tdr-chip,
body.dark-theme .tdr-chip {
  background: #0f172a;
  border-color: #334155;
  color: #e2e8f0;
}

[data-theme="dark"] .tdr-chip:hover,
.dark-theme .tdr-chip:hover,
body.dark-theme .tdr-chip:hover {
  background: #1e293b;
  border-color: #38bdf8;
  color: #38bdf8;
}

[data-theme="dark"] .tdr-toolbar,
.dark-theme .tdr-toolbar,
body.dark-theme .tdr-toolbar {
  background: #0f172a;
  border-color: #334155;
}

[data-theme="dark"] .tdr-mode-label,
.dark-theme .tdr-mode-label,
body.dark-theme .tdr-mode-label {
  color: #f8fafc;
}

[data-theme="dark"] .tdr-mode-btn,
.dark-theme .tdr-mode-btn,
body.dark-theme .tdr-mode-btn {
  background: #1e293b;
  border-color: #334155;
  color: #cbd5e1;
}

[data-theme="dark"] .tdr-mode-btn:hover,
.dark-theme .tdr-mode-btn:hover,
body.dark-theme .tdr-mode-btn:hover {
  background: #334155;
  color: #ffffff;
}

[data-theme="dark"] .tdr-mode-btn.active,
.dark-theme .tdr-mode-btn.active,
body.dark-theme .tdr-mode-btn.active {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.4);
}

[data-theme="dark"] .tdr-options-grid,
.dark-theme .tdr-options-grid,
body.dark-theme .tdr-options-grid {
  border-top-color: #334155;
}

[data-theme="dark"] .tdr-check-label,
.dark-theme .tdr-check-label,
body.dark-theme .tdr-check-label {
  color: #e2e8f0;
}

[data-theme="dark"] .tdr-select-wrap,
.dark-theme .tdr-select-wrap,
body.dark-theme .tdr-select-wrap {
  color: #cbd5e1;
}

[data-theme="dark"] .tdr-select,
.dark-theme .tdr-select,
body.dark-theme .tdr-select {
  background: #0f172a;
  border-color: #334155;
  color: #f8fafc;
}

[data-theme="dark"] .tdr-select option,
.dark-theme .tdr-select option,
body.dark-theme .tdr-select option {
  background: #0f172a;
  color: #f8fafc;
}

[data-theme="dark"] .tdr-stat-box,
.dark-theme .tdr-stat-box,
body.dark-theme .tdr-stat-box {
  background: #0f172a;
  border-color: #334155;
}

[data-theme="dark"] .tdr-stat-num,
.dark-theme .tdr-stat-num,
body.dark-theme .tdr-stat-num {
  color: #f8fafc;
}

[data-theme="dark"] .tdr-stat-title,
.dark-theme .tdr-stat-title,
body.dark-theme .tdr-stat-title {
  color: #94a3b8;
}

[data-theme="dark"] .stat-icon-orig,
.dark-theme .stat-icon-orig,
body.dark-theme .stat-icon-orig { background: rgba(59, 130, 246, 0.2); color: #60a5fa; }

[data-theme="dark"] .stat-icon-uniq,
.dark-theme .stat-icon-uniq,
body.dark-theme .stat-icon-uniq { background: rgba(16, 185, 129, 0.2); color: #34d399; }

[data-theme="dark"] .stat-icon-dups,
.dark-theme .stat-icon-dups,
body.dark-theme .stat-icon-dups { background: rgba(239, 68, 68, 0.2); color: #f87171; }

[data-theme="dark"] .stat-icon-rate,
.dark-theme .stat-icon-rate,
body.dark-theme .stat-icon-rate { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }

[data-theme="dark"] .tdr-pane,
.dark-theme .tdr-pane,
body.dark-theme .tdr-pane {
  background: #0f172a;
  border-color: #334155;
}

[data-theme="dark"] .tdr-pane-head,
.dark-theme .tdr-pane-head,
body.dark-theme .tdr-pane-head {
  background: #1e293b;
  border-bottom-color: #334155;
}

[data-theme="dark"] .tdr-pane-label,
.dark-theme .tdr-pane-label,
body.dark-theme .tdr-pane-label {
  color: #f8fafc;
}

[data-theme="dark"] .tdr-action-btn,
.dark-theme .tdr-action-btn,
body.dark-theme .tdr-action-btn {
  background: #0f172a;
  border-color: #334155;
  color: #cbd5e1;
}

[data-theme="dark"] .tdr-action-btn:hover,
.dark-theme .tdr-action-btn:hover,
body.dark-theme .tdr-action-btn:hover {
  background: #334155;
  color: #f8fafc;
}

[data-theme="dark"] .tdr-textarea,
.dark-theme .tdr-textarea,
body.dark-theme .tdr-textarea {
  background: #0b1120;
  color: #f8fafc;
}

[data-theme="dark"] .tdr-textarea:focus,
.dark-theme .tdr-textarea:focus,
body.dark-theme .tdr-textarea:focus {
  background: #0f172a;
}

[data-theme="dark"] .tdr-textarea::placeholder,
.dark-theme .tdr-textarea::placeholder,
body.dark-theme .tdr-textarea::placeholder {
  color: #475569;
}

[data-theme="dark"] .tdr-pane-foot,
.dark-theme .tdr-pane-foot,
body.dark-theme .tdr-pane-foot {
  background: #1e293b;
  border-top-color: #334155;
  color: #94a3b8;
}

[data-theme="dark"] .tdr-btn-swap,
.dark-theme .tdr-btn-swap,
body.dark-theme .tdr-btn-swap {
  background: #1e293b;
  border-color: #334155;
  color: #f8fafc;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .tdr-btn-swap:hover,
.dark-theme .tdr-btn-swap:hover,
body.dark-theme .tdr-btn-swap:hover {
  background: #334155;
  border-color: #38bdf8;
  color: #38bdf8;
}

[data-theme="dark"] .tdr-icon-badge,
.dark-theme .tdr-icon-badge,
body.dark-theme .tdr-icon-badge {
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.3);
  color: #38bdf8;
}