/* ============================================
   Text Diff - Layout & Styles (CodeMirror)

   Breakpoints:
     Mobile:    < 768px   (single column, compact)
     Desktop:   >= 768px  (full layout)
     Wide:      >= 1400px (with ad sidebars)
   ============================================ */

/* ======================
   BASE LAYOUT
   ====================== */

html {
  background-color: #0d9488;
}

body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
  animation: float 20s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

/* ======================
   HEADER
   ====================== */

.header {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-3) 0;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.header-content {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: white;
  transition: all var(--transition-base);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  flex-shrink: 0;
}

.logo-link:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.logo-text {
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.logo-dot {
  color: #fbbf24;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.2); }
}

.title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

/* ======================
   OPTIONS BAR
   ====================== */

.options-bar {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--space-3) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.options-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.options-left {
  display: flex;
  gap: var(--space-2);
  flex: 1;
  min-width: 0;
}

.diff-options {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.options-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.options-right .btn {
  border: 1px solid transparent;
}

.options-right .btn-primary {
  border-color: var(--color-primary);
}

.option-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-base);
  user-select: none;
  line-height: 1;
  white-space: nowrap;
}

.option-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
}

.option-toggle:has(input:checked) {
  background: rgba(16, 185, 129, 0.3);
  border-color: rgba(16, 185, 129, 0.5);
}

.option-toggle input[type="checkbox"] {
  width: 12px;
  height: 12px;
  accent-color: #10b981;
  cursor: pointer;
  margin: 0;
}

.option-toggle-label {
  color: white;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.02em;
}

.btn-icon {
  background: rgba(13, 148, 136, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  font-size: var(--text-lg);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  color: white;
}

.btn-icon:hover {
  background: rgba(13, 148, 136, 0.3);
  transform: scale(1.05);
}

/* ======================
   PAGE BODY
   ====================== */

.page-body {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  grid-template-areas: "content";
  min-height: 0;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* ======================
   AD SIDEBARS
   ====================== */

.ad-sidebar {
  display: none;
  align-self: center;
  padding: var(--space-4) 0;
}

.ad-sidebar-left {
  grid-area: ad-left;
  justify-self: center;
}

.ad-sidebar-right {
  grid-area: ad-right;
  justify-self: center;
}

.ad-sticky {
  position: sticky;
  top: var(--space-4);
}

.ad-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 160px;
  height: 600px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 2px dashed rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.4;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

/* ======================
   MAIN CONTENT
   ====================== */

.main-content {
  grid-area: content;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: var(--space-4) 0;
  min-height: 0;
}

.main-content > .container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 0;
}

/* ======================
   EDITOR SECTION
   ====================== */

.editor-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  border: none;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  transition: all var(--transition-base);
}

/* Fullscreen mode */
.editor-section:fullscreen {
  border-radius: 0;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 1);
}

.editor-section:-webkit-full-screen {
  border-radius: 0;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 1);
}

.editor-section:-moz-full-screen {
  border-radius: 0;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 1);
}

.editor-section:-ms-fullscreen {
  border-radius: 0;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 1);
}

.merge-view-container {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* ======================
   MOBILE DIFF VIEW
   ====================== */

.mobile-diff-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.mobile-diff-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 25vh;
  overflow: hidden;
}

/* 에디터 컨테이너가 남은 공간을 채우도록 */
#mobile-editor-original,
#mobile-editor-modified {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.mobile-diff-pane .CodeMirror {
  height: 100%;
}

.mobile-diff-label {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.mobile-diff-original .mobile-diff-label {
  color: #dc2626;
  background: rgba(239, 68, 68, 0.08);
  border-bottom: 1px solid rgba(239, 68, 68, 0.15);
}

.mobile-diff-modified .mobile-diff-label {
  color: #059669;
  background: rgba(16, 185, 129, 0.08);
  border-bottom: 1px solid rgba(16, 185, 129, 0.15);
}

.mobile-diff-divider {
  height: 2px;
  background: linear-gradient(90deg,
    rgba(239, 68, 68, 0.3),
    rgba(156, 163, 175, 0.3),
    rgba(16, 185, 129, 0.3)
  );
  flex-shrink: 0;
}

/* Mobile diff line highlighting */
.mobile-diff-removed {
  background: rgba(239, 68, 68, 0.12) !important;
}

.mobile-diff-added {
  background: rgba(16, 185, 129, 0.12) !important;
}

/* ======================
   CODEMIRROR OVERRIDES
   ====================== */

.CodeMirror {
  height: 100% !important;
  font-family: var(--font-mono) !important;
  font-size: var(--text-sm) !important;
  line-height: 1.5 !important;
  border: none !important;
  background: #ffffff !important;
  color: #1f2937 !important;
}

.CodeMirror-merge {
  height: 100% !important;
  border: none !important;
}

.CodeMirror-merge-2pane {
  height: 100% !important;
}

.CodeMirror-merge-pane {
  height: 100% !important;
  border: none !important;
}

.CodeMirror-merge-gap {
  border: none !important;
}

/* Diff colors - Defined at the end in CRITICAL OVERRIDES section */

/* Connection lines */
.CodeMirror-merge-gap {
  width: 50px !important;
  background: #f8f9fa !important;
  border-left: 1px solid #e5e7eb !important;
  border-right: 1px solid #e5e7eb !important;
}

.CodeMirror-merge-scrolllock-wrap {
  background: transparent !important;
}

.CodeMirror-merge-copybuttons-left,
.CodeMirror-merge-copybuttons-right {
  display: none !important;
}

/* Gutters */
.CodeMirror-gutter,
.CodeMirror-gutters {
  background: #f9fafb !important;
  border: none !important;
  border-right: 1px solid #e5e7eb !important;
}

.CodeMirror-linenumber {
  color: #6b7280 !important;
  font-size: var(--text-xs) !important;
}

/* Remove all white borders */
.CodeMirror-scroll,
.CodeMirror-sizer,
.CodeMirror-lines {
  border: none !important;
}

.CodeMirror-merge-pane-rightmost {
  border-left: none !important;
}


/* ======================
   STATUS BAR
   ====================== */

.status-bar {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-2) 0;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.status-content {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--text-sm);
}

.status-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.status-label {
  color: rgba(255, 255, 255, 0.8);
  font-weight: var(--font-medium);
}

#char-count,
#line-count,
#status-text {
  color: white;
  font-weight: var(--font-semibold);
}

/* ============================================
   RESPONSIVE: Wide Desktop (>= 1400px)
   ============================================ */

@media (min-width: 1400px) {
  .page-body {
    grid-template-columns: 200px 1fr 200px;
    grid-template-areas: "ad-left content ad-right";
  }

  .ad-sidebar {
    display: block;
  }
}

/* ============================================
   RESPONSIVE: Desktop (>= 768px)
   ============================================ */

@media (min-width: 768px) {
  .mobile-diff-container {
    display: none !important;
  }
}

/* ============================================
   RESPONSIVE: Mobile (< 768px)
   ============================================ */

@media (max-width: 767px) {
  .header {
    padding: var(--space-2) 0;
  }

  .title {
    font-size: var(--text-sm);
  }

  .logo-link {
    font-size: var(--text-sm);
    padding: var(--space-1) var(--space-2);
  }

  .options-content {
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .options-left {
    width: 100%;
  }

  .diff-options {
    gap: var(--space-1);
  }

  .options-right {
    width: 100%;
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  #btn-example,
  #btn-fullscreen {
    display: none;
  }

  .btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }

  .main-content {
    padding: var(--space-2) 0;
  }

  .status-bar {
    padding: var(--space-1) 0;
  }

  .status-content {
    gap: var(--space-2);
    font-size: var(--text-xs);
  }

  .CodeMirror {
    font-size: 12px !important;
  }
}

/* ============================================
   DARK MODE
   ============================================ */

html[data-theme="dark"] {
  background-color: #0f172a;
}

[data-theme="dark"] body {
  background: #0f172a;
}

[data-theme="dark"] .header {
  background: rgba(0, 0, 0, 0.3);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .options-bar {
  background: rgba(0, 0, 0, 0.2);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .option-toggle {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .option-toggle:has(input:checked) {
  background: rgba(16, 185, 129, 0.25);
  border-color: rgba(16, 185, 129, 0.4);
}

[data-theme="dark"] .btn-icon {
  background: rgba(13, 148, 136, 0.2);
  border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .btn-icon:hover {
  background: rgba(13, 148, 136, 0.3);
}

[data-theme="dark"] .editor-section {
  background: rgba(15, 23, 42, 0.98);
  border: none;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .editor-section:fullscreen,
[data-theme="dark"] .editor-section:-webkit-full-screen,
[data-theme="dark"] .editor-section:-moz-full-screen,
[data-theme="dark"] .editor-section:-ms-fullscreen {
  background: rgba(15, 23, 42, 1);
}


/* CodeMirror Dark Mode */
[data-theme="dark"] .CodeMirror,
[data-theme="dark"] .CodeMirror-scroll {
  background: rgba(20, 20, 35, 0.6) !important;
  color: #e5e7eb !important;
}

[data-theme="dark"] .CodeMirror-merge .CodeMirror,
[data-theme="dark"] .CodeMirror-merge .CodeMirror-scroll {
  background: rgba(20, 20, 35, 0.6) !important;
}

[data-theme="dark"] .CodeMirror-merge-pane .CodeMirror,
[data-theme="dark"] .CodeMirror-merge-pane .CodeMirror-scroll {
  background: rgba(20, 20, 35, 0.6) !important;
}

[data-theme="dark"] .CodeMirror-merge-pane:first-child .CodeMirror,
[data-theme="dark"] .CodeMirror-merge-pane:first-child .CodeMirror-scroll,
[data-theme="dark"] .CodeMirror-merge-pane:last-child .CodeMirror,
[data-theme="dark"] .CodeMirror-merge-pane:last-child .CodeMirror-scroll {
  background: rgba(20, 20, 35, 0.6) !important;
}

[data-theme="dark"] .CodeMirror-lines,
[data-theme="dark"] .CodeMirror-sizer,
[data-theme="dark"] .CodeMirror-code {
  background: transparent !important;
}

/* Force dark background on all CodeMirror elements */
[data-theme="dark"] .CodeMirror-merge-2pane .CodeMirror-merge-pane .CodeMirror {
  background-color: rgba(20, 20, 35, 0.6) !important;
}

[data-theme="dark"] div.CodeMirror {
  background-color: rgba(20, 20, 35, 0.6) !important;
}

[data-theme="dark"] .CodeMirror-gutters,
[data-theme="dark"] .CodeMirror-gutter {
  background: rgba(15, 15, 30, 0.7) !important;
  border: none !important;
  border-right: 1px solid rgba(13, 148, 136, 0.2) !important;
}

[data-theme="dark"] .CodeMirror-linenumber {
  color: rgba(156, 163, 175, 0.8) !important;
}

[data-theme="dark"] .CodeMirror-gutter-wrapper {
  background: transparent !important;
}

[data-theme="dark"] .CodeMirror-merge .CodeMirror-gutters {
  background: rgba(15, 15, 30, 0.7) !important;
}

/* Dark mode diff colors - Defined at the end in CRITICAL OVERRIDES section */

[data-theme="dark"] .CodeMirror-merge-gap {
  background: rgba(15, 15, 30, 0.6) !important;
  border-left: 1px solid rgba(13, 148, 136, 0.2) !important;
  border-right: 1px solid rgba(13, 148, 136, 0.2) !important;
}

[data-theme="dark"] .CodeMirror-merge-scrolllock-wrap {
  background: transparent !important;
}

[data-theme="dark"] .status-bar {
  background: rgba(0, 0, 0, 0.3);
  border-top-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .ad-placeholder {
  background: rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Mobile diff dark mode */
[data-theme="dark"] .mobile-diff-original .mobile-diff-label {
  color: #f87171;
  background: rgba(239, 68, 68, 0.12);
  border-bottom-color: rgba(239, 68, 68, 0.2);
}

[data-theme="dark"] .mobile-diff-modified .mobile-diff-label {
  color: #34d399;
  background: rgba(16, 185, 129, 0.12);
  border-bottom-color: rgba(16, 185, 129, 0.2);
}

[data-theme="dark"] .mobile-diff-divider {
  background: linear-gradient(90deg,
    rgba(248, 113, 113, 0.3),
    rgba(107, 114, 128, 0.3),
    rgba(52, 211, 153, 0.3)
  );
}

[data-theme="dark"] .mobile-diff-removed {
  background: rgba(239, 68, 68, 0.15) !important;
}

[data-theme="dark"] .mobile-diff-added {
  background: rgba(16, 185, 129, 0.15) !important;
}

/* ============================================
   CRITICAL OVERRIDES - Keep at the end
   Force color overrides for CodeMirror defaults
   ============================================ */

/* Left side - Red (all variations) */
div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk,
.CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk,
.CodeMirror-merge-2pane div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk {
  background: rgba(239, 68, 68, 0.12) !important;
}

div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-deleted,
.CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-deleted {
  background: rgba(239, 68, 68, 0.2) !important;
}

div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-deleted-char,
.CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-deleted-char {
  background: rgba(239, 68, 68, 0.3) !important;
  text-decoration: none !important;
  border: none !important;
}

div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk-start,
.CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk-start,
div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk-end,
.CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk-end {
  border: none !important;
}

/* Hide left side insertions - keep as is, this is correct */
div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-inserted {
  display: none !important;
}

/* Right side - Green (all variations) */
div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk,
.CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk,
.CodeMirror-merge-2pane div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk {
  background: rgba(16, 185, 129, 0.12) !important;
}

div.CodeMirror-merge-editor .CodeMirror-merge-l-deleted,
.CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-deleted,
div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted,
.CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted {
  background: rgba(16, 185, 129, 0.2) !important;
}

div.CodeMirror-merge-editor .CodeMirror-merge-l-deleted-char,
.CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-deleted-char,
div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted-char,
.CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted-char {
  background: rgba(16, 185, 129, 0.3) !important;
  text-decoration: none !important;
  border: none !important;
  opacity: 1 !important;
  color: inherit !important;
}

div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk-start,
.CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk-start,
div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk-end,
.CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk-end {
  border: none !important;
}

/* Show insertions on right pane as green */
div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted {
  background: rgba(16, 185, 129, 0.2) !important;
}

/* Dark mode overrides */
[data-theme="dark"] div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk {
  background: rgba(239, 68, 68, 0.15) !important;
}

[data-theme="dark"] div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-deleted,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-deleted {
  background: rgba(239, 68, 68, 0.25) !important;
}

[data-theme="dark"] div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-deleted-char,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-deleted-char {
  background: rgba(239, 68, 68, 0.35) !important;
  text-decoration: none !important;
  border: none !important;
}

[data-theme="dark"] div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk-start,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk-start,
[data-theme="dark"] div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk-end,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-pane:first-child .CodeMirror-merge-l-chunk-end {
  border: none !important;
}

[data-theme="dark"] div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk {
  background: rgba(16, 185, 129, 0.15) !important;
}

[data-theme="dark"] div.CodeMirror-merge-editor .CodeMirror-merge-l-deleted,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-deleted,
[data-theme="dark"] div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted {
  background: rgba(16, 185, 129, 0.25) !important;
}

[data-theme="dark"] div.CodeMirror-merge-editor .CodeMirror-merge-l-deleted-char,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-deleted-char,
[data-theme="dark"] div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted-char,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted-char {
  background: rgba(16, 185, 129, 0.35) !important;
  text-decoration: none !important;
  border: none !important;
  opacity: 1 !important;
  color: inherit !important;
}

[data-theme="dark"] div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk-start,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk-start,
[data-theme="dark"] div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk-end,
[data-theme="dark"] .CodeMirror-merge div.CodeMirror-merge-editor .CodeMirror-merge-l-chunk-end {
  border: none !important;
}

[data-theme="dark"] div.CodeMirror-merge-editor .CodeMirror-merge-l-inserted {
  background: rgba(16, 185, 129, 0.25) !important;
}

/* ── About/Related fix: allow scrolling past tool UI ─────────────────────── */
.main-content { overflow-y: auto; }
.editor-section { min-height: clamp(320px, 50vh, 700px); }

/* ── Compact header ─────────────────────────────────────────────────────── */
.header { padding: var(--space-1) 0; }
.logo-link { font-size: var(--text-sm); padding: var(--space-1) var(--space-2); }
.title { font-size: var(--text-sm); }

/* ── Mobile: natural page scroll + usable editor height ─────────────────── */
@media (max-width: 767px) {
  body { height: auto; min-height: 100vh; overflow-y: auto; }
  .page-body { overflow: visible; }
  .main-content { overflow: visible !important; padding-bottom: var(--space-8); }
  .mobile-diff-pane { min-height: 45vh; }
}