/* =============================================
   Diff Checker — Tool-specific styles
   ============================================= */

/* Toggle bar — always row layout when visible */
.diff-toggle-bar {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

/* View toggle segmented control */
.view-btn {
  background: transparent !important;
  color: #9ca3af !important;
  border: none !important;
  cursor: pointer;
  font-weight: 600;
  box-shadow: none !important;
}

.view-btn.active {
  background: #111827 !important;
  color: #fff !important;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15) !important;
}

/* Stats labels */
.diff-stats .stat-added {
  color: #059669;
  font-weight: 600;
}

.diff-stats .stat-removed {
  color: #dc2626;
  font-weight: 600;
}

.diff-stats .stat-modified {
  color: #d97706;
  font-weight: 600;
}

.diff-stats .stat-unchanged {
  color: #9ca3af;
}

/* Diff lines */
.diff-line {
  display: flex;
  min-height: 26px;
  border-bottom: 1px solid #f3f4f6;
}

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

.diff-line-number {
  flex: 0 0 48px;
  padding: 4px 10px;
  text-align: right;
  font-size: 11px;
  color: #d1d5db;
  background: #fafafa;
  border-right: 1px solid #f3f4f6;
  user-select: none;
  font-weight: 600;
}

.diff-line-prefix {
  flex: 0 0 24px;
  padding: 4px 0;
  text-align: center;
  font-weight: 700;
  user-select: none;
  font-size: 13px;
  color: #9ca3af;
}

.diff-line-content {
  flex: 1;
  padding: 4px 10px;
  white-space: pre;
  min-width: 0;
  overflow-x: auto;
  color: #374151;
  font-size: 13px;
  line-height: 1.45;
}

/* Line type colors */
.diff-line.added   { background: #f0fdf4; }
.diff-line.added .diff-line-number  { background: #dcfce7; color: #166534; border-right-color: #bbf7d0; }
.diff-line.added .diff-line-prefix  { color: #16a34a; }

.diff-line.removed { background: #fef2f2; }
.diff-line.removed .diff-line-number { background: #fee2e2; color: #991b1b; border-right-color: #fecaca; }
.diff-line.removed .diff-line-prefix { color: #dc2626; }

.diff-line.modified { background: #fffbeb; }
.diff-line.modified .diff-line-number { background: #fef3c7; color: #92400e; border-right-color: #fde68a; }
.diff-line.modified .diff-line-prefix { color: #d97706; }

.diff-line.empty-placeholder { background: #fafafa; }
.diff-line.empty-placeholder .diff-line-number { background: #f3f4f6; }

/* Word-level highlights */
.diff-word-added {
  background: #bbf7d0;
  color: #14532d;
  border-radius: 3px;
  padding: 0 2px;
}

.diff-word-removed {
  background: #fecaca;
  color: #7f1d1d;
  border-radius: 3px;
  padding: 0 2px;
  text-decoration: line-through;
}

/* No differences message */
.diff-no-changes {
  padding: 40px;
  text-align: center;
  color: #059669;
  font-size: 15px;
  font-weight: 600;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 10px;
  margin-bottom: 32px;
}

/* Scrollbar */
.diff-scroll::-webkit-scrollbar { width: 5px; height: 5px; }
.diff-scroll::-webkit-scrollbar-track { background: transparent; }
.diff-scroll::-webkit-scrollbar-thumb { background: #e5e7eb; border-radius: 8px; }
.diff-scroll::-webkit-scrollbar-thumb:hover { background: #d1d5db; }

/* Responsive */
@media (max-width: 767px) {
  .diff-line-number { flex: 0 0 36px; font-size: 10px; padding: 4px 6px; }
}