/* ==========================================================================
   Ad Placement Studio - Thân thiện, Rõ ràng, Dễ đọc (Modern Slate)
   ========================================================================== */

:root,
[data-theme="dark"] {
  color-scheme: dark;
  --bg-canvas: #090e17;
  --bg-panel: #111a2e;
  --bg-subpanel: #16223b;
  --bg-card: #18253f;
  --bg-hover: #223456;
  --bg-active: #2d436e;
  --bg-input: #0c1424;

  --border-subtle: #2b3d61;
  --border-strong: #3f5582;
  --border-focus: #6366f1;

  --text-primary: #ffffff;
  --text-secondary: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-soft: rgba(99, 102, 241, 0.18);
  --accent-glow: rgba(99, 102, 241, 0.38);

  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.18);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.18);
  --danger: #f43f5e;
  --danger-hover: #e11d48;
  --danger-soft: rgba(244, 63, 94, 0.18);
  --info: #06b6d4;

  --radius-xl: 14px;
  --radius-lg: 10px;
  --radius-md: 8px;
  --radius-sm: 6px;

  --header-h: 58px;
  --sidebar-w: 360px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 14px 32px rgba(0, 0, 0, 0.6);

  --font-mono: 'JetBrains Mono', Consolas, monospace;
}

[data-theme="light"] {
  color-scheme: light;
  --bg-canvas: #f1f5f9;
  --bg-panel: #ffffff;
  --bg-subpanel: #f8fafc;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --bg-active: #e2e8f0;
  --bg-input: #ffffff;

  --border-subtle: #e2e8f0;
  --border-strong: #cbd5e1;
  --border-focus: #4f46e5;

  --text-primary: #0f172a;
  --text-secondary: #1e293b;
  --text-muted: #64748b;
  --text-dim: #94a3b8;

  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: rgba(79, 70, 229, 0.1);
  --accent-glow: rgba(79, 70, 229, 0.2);

  --success: #059669;
  --success-soft: rgba(5, 150, 105, 0.12);
  --warning: #d97706;
  --warning-soft: rgba(217, 119, 6, 0.12);
  --danger: #e11d48;
  --danger-hover: #be123c;
  --danger-soft: rgba(225, 29, 72, 0.12);
  --info: #0284c7;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 14px 32px rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   Base & Resets
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13.5px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  user-select: none;
}

code, kbd, pre {
  font-family: var(--font-mono);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-dim);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   App Shell & Header
   ========================================================================== */

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

.topbar {
  min-height: var(--header-h);
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 18px;
  gap: 16px;
  z-index: 50;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 20px;
  min-width: 0;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #6366f1 0%, #4338ca 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 2px 10px var(--accent-glow);
}

.brand-mark svg {
  width: 19px;
  height: 19px;
}

.brand-text h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  line-height: 1.2;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.version-badge {
  font-size: 10.5px;
  font-weight: 700;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 2px 7px;
  border-radius: 4px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--success);
  background: var(--success-soft);
  padding: 2px 8px;
  border-radius: 999px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 6px var(--success);
}

.subtitle {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Project Controls in Topbar */
.project-pill-control {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 4px 8px 4px 10px;
}

.control-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.select-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 100%;
}

.select-wrapper select {
  appearance: none;
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 28px 8px 10px;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  width: 100%;
  height: 38px;
  transition: all 0.15s ease;
}

.project-pill-control .select-wrapper select {
  background: transparent;
  border: none;
  height: auto;
  padding: 4px 22px 4px 6px;
  font-size: 13px;
}

.select-wrapper::after {
  content: "";
  position: absolute;
  right: 10px;
  width: 0;
  height: 0;
  border-left: 4.5px solid transparent;
  border-right: 4.5px solid transparent;
  border-top: 5.5px solid var(--text-muted);
  pointer-events: none;
}

.rename-inline input {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 12.5px;
  font-weight: 500;
  width: 140px;
  transition: all 0.15s ease;
  outline: none;
}

.rename-inline input:focus {
  border-color: var(--border-focus);
  width: 170px;
}

.project-badge {
  font-size: 11.5px;
  color: var(--text-muted);
  padding-left: 4px;
}

/* Topbar Actions */
.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.action-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.divider-vertical {
  width: 1px;
  height: 24px;
  background: var(--border-subtle);
}

.utility-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   Buttons & Interactive Elements
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 34px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  outline: none;
}

.btn svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.btn-sm {
  height: 30px;
  padding: 0 11px;
  font-size: 12px;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 2px 6px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-0.5px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-subpanel);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--accent);
}

.btn-ghost {
  color: var(--text-secondary);
  background: transparent;
}

.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-ghost.danger {
  color: var(--danger);
}

.btn-ghost.danger:hover {
  background: var(--danger-soft);
  color: var(--danger);
}

.btn-danger-ghost {
  background: transparent;
  color: var(--danger);
  border: 1px solid transparent;
}

.btn-danger-ghost:hover {
  background: var(--danger-soft);
  border-color: var(--danger);
}

.icon-btn,
.icon-btn-compact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all 0.15s ease;
  outline: none;
}

.icon-btn {
  width: 34px;
  height: 34px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
}

.icon-btn svg {
  width: 17px;
  height: 17px;
}

.icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.icon-btn-compact {
  width: 26px;
  height: 26px;
  border: 1px solid transparent;
}

.icon-btn-compact svg {
  width: 14px;
  height: 14px;
}

.icon-btn-compact:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.icon-btn-compact.danger:hover {
  background: var(--danger-soft);
  color: var(--danger);
}

/* Theme Switcher Icons */
[data-theme="dark"] .sun-icon {
  display: block;
}
[data-theme="dark"] .moon-icon {
  display: none;
}
[data-theme="light"] .sun-icon {
  display: none;
}
[data-theme="light"] .moon-icon {
  display: block;
}

/* ==========================================================================
   Workspace Layout
   ========================================================================== */

.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 0;
  background: var(--bg-canvas);
}

/* ==========================================================================
   Sidebar: Placements Manager
   ========================================================================== */

.sidebar {
  background: var(--bg-panel);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  min-height: 0;
  user-select: none;
}

.sidebar-header {
  padding: 16px 18px 14px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
}

.sidebar-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-title-row h2 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.count-badge {
  font-size: 11.5px;
  font-weight: 600;
  background: var(--bg-subpanel);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  padding: 2px 8px;
  border-radius: 999px;
}

.sidebar-hint {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Quick Add Dropdown Menu */
.quick-add-menu-wrapper {
  position: relative;
}

.add-placement-btn .chevron-down {
  width: 13px;
  height: 13px;
  margin-left: -2px;
}

.quick-add-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  width: 320px;
  max-height: 480px;
  overflow-y: auto;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 3px;
  animation: dropdownIn 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes dropdownIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-section-title {
  font-size: 10.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  padding: 8px 10px 4px;
}

.quick-preset-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  text-align: left;
  transition: all 0.12s ease;
  width: 100%;
}

.quick-preset-item:hover {
  background: var(--bg-hover);
}

.quick-preset-item .type-icon {
  font-size: 15px;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.quick-preset-item .type-details {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  min-width: 0;
}

.quick-preset-item strong {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.preset-tag {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 7px;
  border-radius: 4px;
  white-space: nowrap;
}

.type-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 800;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}

.type-native { background: rgba(99, 102, 241, 0.2); color: #818cf8; }
.type-interstitial { background: rgba(14, 165, 233, 0.2); color: #38bdf8; }
.type-rewarded { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.type-rewarded-inter,
.type-rewarded-interstitial { background: rgba(20, 184, 166, 0.2); color: #2dd4bf; }
.type-app-open { background: rgba(244, 63, 94, 0.2); color: #fb7185; }
.type-banner { background: rgba(16, 185, 129, 0.2); color: #34d399; }

/* Quick Type Grid */
.quick-type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 2px;
}

.quick-type-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 4px;
  border-radius: var(--radius-sm);
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  transition: all 0.12s ease;
  width: 100%;
  cursor: pointer;
}

.quick-type-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

.quick-type-item span:not(.type-icon) {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Sidebar Search & Filter Chips */
.sidebar-search-area {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 10px;
  width: 15px;
  height: 15px;
  color: var(--text-dim);
  pointer-events: none;
}

.search-input-wrapper input {
  width: 100%;
  height: 34px;
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0 48px 0 34px;
  font-size: 12.5px;
  color: var(--text-primary);
  outline: none;
  transition: all 0.15s ease;
}

.search-input-wrapper input:focus {
  border-color: var(--border-focus);
  background: var(--bg-panel);
}

.search-shortcut {
  position: absolute;
  right: 8px;
  font-size: 10.5px;
  padding: 2px 6px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-dim);
}

.filter-chips {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.chip {
  padding: 4px 10px;
  font-size: 11.5px;
  font-weight: 500;
  border-radius: 999px;
  background: var(--bg-subpanel);
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: all 0.12s ease;
  white-space: nowrap;
}

.chip:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.chip.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
  font-weight: 700;
}

/* Placements List */
.placement-list-container {
  flex: 1;
  overflow-y: auto;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.placement-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  text-align: left;
}

.placement-item-card:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  transform: translateY(-0.5px);
}

.placement-item-card.active {
  background: var(--bg-card);
  border-color: var(--accent);
  box-shadow: 0 0 0 1.5px var(--accent), var(--shadow-sm);
}

.placement-item-card.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  background: var(--accent);
  border-radius: 0 4px 4px 0;
}

.placement-item-card.disabled {
  opacity: 0.65;
}

.placement-card-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}

.status-indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}

.status-indicator-dot.off {
  background: var(--text-dim);
}

.placement-text-group {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.placement-name-text {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.placement-meta-chips {
  display: flex;
  align-items: center;
  gap: 6px;
}

.type-pill {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding: 1px 6px;
  border-radius: 4px;
}

.units-count-pill {
  font-size: 11px;
  color: var(--text-muted);
}

.placement-card-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.placement-item-card:hover .placement-card-actions {
  opacity: 1;
}

/* ==========================================================================
   Editor Area & Tabs
   ========================================================================== */

.editor {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  background: var(--bg-canvas);
}

.editor-tabs {
  height: 48px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 24px;
  flex-shrink: 0;
}

.tab-button {
  height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2.5px solid transparent;
  transition: all 0.15s ease;
  position: relative;
}

.tab-button svg {
  width: 16px;
  height: 16px;
}

.tab-button:hover {
  color: var(--text-secondary);
}

.tab-button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 700;
}

.tab-panel {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
  display: none;
}

.tab-panel.active {
  display: block;
}

/* Empty State Card */
.empty-state-card {
  max-width: 480px;
  margin: 60px auto;
  text-align: center;
  padding: 44px 28px;
  background: var(--bg-panel);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow-sm);
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state-icon svg {
  width: 30px;
  height: 30px;
}

.empty-state-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.empty-state-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 6px;
}

/* Quick Help Banner */
.quick-help-banner {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(59, 130, 246, 0.04) 100%);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-lg);
  padding: 12px 18px;
  margin-bottom: 20px;
  max-width: 1160px;
  margin-left: auto;
  margin-right: auto;
  transition: all 0.2s ease;
}

.quick-help-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  gap: 12px;
}

.quick-help-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.help-bulb {
  font-size: 18px;
}

.help-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.help-toggle-btn:hover {
  background: var(--accent);
  color: #ffffff;
}

.chevron-help {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.quick-help-banner.expanded .chevron-help {
  transform: rotate(180deg);
}

.quick-help-body {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(99, 102, 241, 0.15);
}

.help-col strong {
  display: block;
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 5px;
}

.help-col p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

.help-col code {
  background: var(--bg-subpanel);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 11px;
}

/* ==========================================================================
   Placement Form & Section Cards
   ========================================================================== */

.editor-form {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Sticky Section Navigation */
.section-nav-sticky {
  position: sticky;
  top: 0;
  z-index: 25;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(8px);
  overflow-x: auto;
}

.section-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  transition: all 0.15s ease;
  white-space: nowrap;
  text-decoration: none;
}

.section-nav-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-color: var(--accent);
}

.section-nav-btn.active {
  color: #ffffff;
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 2px 6px var(--accent-glow);
}

.section-highlight {
  outline: 2px solid var(--accent);
  box-shadow: 0 0 0 5px var(--accent-glow) !important;
  transition: all 0.3s ease;
}

/* Placement Banner Card */
.placement-banner-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  box-shadow: var(--shadow-sm);
}

.placement-banner-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
}

.type-badge-large {
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: var(--accent-soft);
  color: var(--accent);
}

.placement-title-edit {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
}

.placement-title-edit input {
  font-size: 18px;
  font-weight: 700;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  color: var(--text-primary);
  outline: none;
  width: 100%;
}

.placement-title-edit input:hover {
  border-color: var(--border-subtle);
  background: var(--bg-subpanel);
}

.placement-title-edit input:focus {
  border-color: var(--border-focus);
  background: var(--bg-input);
}

.placement-key-label {
  font-size: 11.5px;
  color: var(--text-muted);
  padding-left: 8px;
}

.placement-banner-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Card Sections */
.card-section {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-margin-top: 64px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 14px;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-icon {
  font-size: 17px;
}

.card-title h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

.card-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
}

#adUnitsStrategyBadge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  display: inline-block;
  vertical-align: middle;
}

#adUnitsStrategyBadge.parallel {
  background: rgba(99, 102, 241, 0.16);
  color: #818cf8;
}

#adUnitsStrategyBadge.waterfall {
  background: rgba(14, 165, 233, 0.16);
  color: #38bdf8;
}

.native-badge { background: rgba(99, 102, 241, 0.16); color: #818cf8; }
.banner-badge { background: rgba(16, 185, 129, 0.16); color: #34d399; }

.card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ==========================================================================
   Form Grids, Inputs & Contextual Hints
   ========================================================================== */

.form-grid {
  display: grid;
  gap: 16px;
}

.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.field-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-item label {
  display: inline-flex;
  align-items: center;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
}

.field-hint {
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.field-hint code {
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 11.5px;
  color: var(--accent);
}

.subcard-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
  margin-bottom: 8px;
  line-height: 1.4;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="search"],
select,
textarea {
  height: 38px;
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  font-size: 13.5px;
  color: var(--text-primary);
  outline: none;
  transition: all 0.15s ease;
  width: 100%;
}

textarea {
  height: auto;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.55;
}

input:hover, select:hover, textarea:hover {
  border-color: var(--text-muted);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--border-focus);
  background: var(--bg-panel);
  box-shadow: 0 0 0 2.5px var(--accent-soft);
}

.number-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.number-input-wrapper input {
  padding-right: 56px;
}

.input-affix {
  position: absolute;
  right: 12px;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-dim);
  pointer-events: none;
}

/* Switch Toggle */
.switch-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.switch-toggle input {
  display: none;
}

.switch-slider {
  width: 40px;
  height: 22px;
  background: var(--bg-subpanel);
  border: 1.5px solid var(--border-strong);
  border-radius: 999px;
  position: relative;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.switch-slider::before {
  content: "";
  position: absolute;
  width: 15px;
  height: 15px;
  left: 2px;
  top: 2px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.switch-toggle input:checked + .switch-slider {
  background: var(--accent);
  border-color: var(--accent);
}

.switch-toggle input:checked + .switch-slider::before {
  transform: translateX(18px);
  background: #ffffff;
}

.switch-text {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
}

/* Checkbox Cards */
.checkbox-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  min-height: 52px;
}

.checkbox-card:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

.checkbox-card input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

.checkbox-info {
  display: flex;
  flex-direction: column;
}

.checkbox-info strong {
  font-size: 13px;
  color: var(--text-primary);
}

.checkbox-info span {
  font-size: 11.5px;
  color: var(--text-muted);
}

.checkbox-simple {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 12.5px;
  color: var(--text-secondary);
}

.checkbox-simple input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.align-center-checkbox {
  justify-content: flex-end;
}

/* ==========================================================================
   Ad Units Waterfall (Primary & Backup)
   ========================================================================== */

.waterfall-explanation {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.waterfall-explanation svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.unit-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.unit-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.unit-group-header h4 {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.unit-group-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.backup-group {
  margin-top: 14px;
  padding-top: 16px;
  border-top: 1px dashed var(--border-subtle);
}

.unit-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.unit-row-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.unit-row-card:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.unit-order-badge {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  width: 28px;
  text-align: center;
  font-family: var(--font-mono);
  background: var(--accent-soft);
  padding: 3px 0;
  border-radius: 4px;
}

.unit-inputs {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.unit-id-field {
  flex: 1;
}

.unit-id-field input {
  font-family: var(--font-mono);
  font-size: 12.5px;
  height: 36px;
}

.unit-weight-field {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 170px;
}

.weight-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.unit-weight-field input {
  height: 36px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-align: center;
  width: 70px;
}

.unit-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.unit-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  transition: all 0.12s ease;
}

.unit-btn svg {
  width: 15px;
  height: 15px;
}

.unit-btn:hover {
  background: var(--bg-active);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.unit-btn.danger:hover {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: var(--danger);
}

/* Test Unit Presets Dropdown */
.test-ids-menu-wrapper {
  position: relative;
}

.test-id-option {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  text-align: left;
  width: 100%;
  transition: all 0.12s ease;
}

.test-id-option:hover {
  background: var(--bg-hover);
}

.test-id-option strong {
  font-size: 12.5px;
  color: var(--text-primary);
}

.test-id-option code {
  font-size: 11px;
  color: var(--accent);
}

/* ==========================================================================
   Native Ad Live Visual Mock & Palette
   ========================================================================== */

.native-layout-split {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 24px;
  align-items: start;
}

.palette-header-title {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-primary);
}

.color-palette-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 10px;
}

.color-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.color-field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.color-picker-combo {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  height: 38px;
}

.color-swatch-input {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
  padding: 0;
  flex-shrink: 0;
}

.color-swatch-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-swatch-input::-webkit-color-swatch {
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 6px;
}

.color-picker-combo input[type="text"] {
  border: none;
  background: transparent;
  padding: 0;
  height: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.color-picker-combo input[type="text"]:focus {
  box-shadow: none;
}

/* Native Live Preview Box */
.native-live-preview-box {
  background: var(--bg-subpanel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}

.preview-box-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
}

.ad-mock-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 14px;
  color: #0f172a;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
}

.ad-mock-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ad-mock-badge {
  background: #f59e0b;
  color: #ffffff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}

.ad-mock-icon-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #6366f1, #3b82f6);
}

.ad-mock-headings {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.ad-mock-headline {
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ad-mock-advertiser {
  font-size: 11.5px;
  color: #64748b;
}

.ad-mock-media {
  height: 120px;
  background: #f1f5f9;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
}

.ad-mock-media-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 12px;
}

.ad-mock-media-content svg {
  width: 26px;
  height: 26px;
}

.ad-mock-body {
  font-size: 12.5px;
  color: #334155;
  line-height: 1.45;
}

.ad-mock-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.ad-mock-price {
  font-size: 12px;
  font-weight: 600;
  color: #059669;
}

.ad-mock-cta-btn {
  background: #4f46e5;
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

/* ==========================================================================
   Click Trigger Subcards & Global Config
   ========================================================================== */

.accordion-subgrid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.subcard {
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
}

.subcard h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
  margin-bottom: 10px;
}

.mt-2 { margin-top: 10px; }
.mt-3 { margin-top: 14px; }
.mt-4 { margin-top: 18px; }

/* SDK Tracking Cards */
.sdk-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.sdk-card {
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.sdk-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

/* ==========================================================================
   JSON Inspector & Encryption
   ========================================================================== */

.json-inspector-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 1160px;
  margin: 0 auto;
}

.json-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.json-segmented-control {
  display: inline-flex;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 4px;
}

.seg {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.12s ease;
}

.seg svg {
  width: 14px;
  height: 14px;
}

.seg:hover {
  color: var(--text-primary);
}

.seg.active {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.json-actions-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.json-search-input {
  position: relative;
  display: flex;
  align-items: center;
}

.json-search-input svg {
  position: absolute;
  left: 10px;
  width: 15px;
  height: 15px;
  color: var(--text-dim);
}

.json-search-input input {
  height: 34px;
  padding: 0 10px 0 32px;
  width: 220px;
  font-size: 12.5px;
}

.search-matches-badge {
  position: absolute;
  right: 8px;
  font-size: 11px;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 7px;
  border-radius: 4px;
}

/* Encryption Card */
.encryption-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}

.encryption-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.enc-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-primary);
}

.enc-title svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

.enc-spec-badge {
  font-size: 11.5px;
  color: var(--text-muted);
}

.encryption-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.password-input-group {
  position: relative;
  flex: 1;
  min-width: 280px;
  display: flex;
  align-items: center;
}

.password-input-group input {
  padding-right: 58px;
  font-family: var(--font-mono);
  font-size: 13px;
  height: 38px;
}

.btn-text-action {
  position: absolute;
  right: 10px;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  padding: 4px 8px;
}

.btn-text-action:hover {
  text-decoration: underline;
}

/* Code Editor Viewport */
.code-editor-viewport {
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  height: calc(100vh - 300px);
  min-height: 400px;
}

.code-viewport-header {
  height: 36px;
  background: var(--bg-subpanel);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.file-tag {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.file-stats {
  font-size: 12px;
  color: var(--text-muted);
}

.code-output-block {
  flex: 1;
  overflow: auto;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-input);
  white-space: pre-wrap;
  word-break: break-all;
}

/* Syntax Highlighting Tokens */
.json-key { color: #818cf8; font-weight: 600; }
.json-string { color: #34d399; }
.json-number { color: #fbbf24; }
.json-boolean { color: #f43f5e; font-weight: 700; }
.json-null { color: #94a3b8; font-style: italic; }
.json-match { background: rgba(245, 158, 11, 0.45); border-radius: 2px; }

/* ==========================================================================
   Modals & Overlays
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-card {
  width: 100%;
  max-width: 500px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  animation: modalScale 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-decrypt {
  max-width: 780px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 24px;
}

.modal-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.modal-title-with-badge {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-title-icon {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.modal-subtitle {
  font-size: 12.5px;
  color: var(--text-muted);
  margin: 0;
}

.decrypt-modal-body {
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-right: 4px;
}

.decrypt-input-tabs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.decrypt-drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 20px;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-subpanel);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
}

.decrypt-drop-zone:hover,
.decrypt-drop-zone.drag-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text-primary);
}

.decrypt-drop-zone svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
}

.file-chosen-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
}

.decrypt-action-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.decrypt-status-alert {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.5;
}

.decrypt-status-alert.success {
  background: var(--success-soft);
  border: 1px solid var(--success);
  color: var(--success);
}

.decrypt-status-alert.error {
  background: var(--danger-soft);
  border: 1px solid var(--danger);
  color: var(--danger);
}

.decrypt-result-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px;
}

.decrypt-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.decrypt-code-viewport {
  max-height: 260px;
  overflow: auto;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-input);
}

.decrypt-code-block {
  margin: 0;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
}

.decrypt-result-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

@keyframes modalScale {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 700;
}

.modal-close-btn {
  font-size: 22px;
  color: var(--text-muted);
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.guide-box {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 16px;
  font-size: 13px;
  line-height: 1.55;
}

.guide-box strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.guide-box ol {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.shortcuts-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.shortcut-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  background: var(--bg-subpanel);
  border-radius: var(--radius-sm);
  font-size: 13px;
}

.shortcut-item kbd {
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 11.5px;
}

/* Drag and Drop Overlay */
.drop-overlay {
  position: fixed;
  inset: 0;
  background: rgba(12, 18, 34, 0.9);
  backdrop-filter: blur(8px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 44px 64px;
  border: 2px dashed var(--accent);
  border-radius: var(--radius-xl);
  background: var(--bg-panel);
  text-align: center;
}

.drop-icon {
  width: 52px;
  height: 52px;
  color: var(--accent);
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  z-index: 500;
  transform: translateY(20px) scale(0.95);
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.toast-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (max-width: 1024px) {
  .cols-3, .cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .native-layout-split {
    grid-template-columns: 1fr;
  }
  .accordion-subgrid {
    grid-template-columns: 1fr;
  }
  .color-palette-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  body {
    overflow-y: auto;
  }
  .workspace {
    grid-template-columns: 1fr;
  }
  .sidebar {
    max-height: 400px;
  }
  .topbar {
    height: auto;
    padding: 12px 16px;
    flex-direction: column;
    align-items: stretch;
  }
  .topbar-left, .topbar-right {
    flex-wrap: wrap;
    justify-content: space-between;
  }
  .action-group {
    flex-wrap: wrap;
  }
}

.unit-title-inline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.unit-sub-tag {
  font-size: 11px;
  color: var(--text-tertiary);
  background: var(--bg-hover);
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 500;
}

.enc-sub-note {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

/* ==========================================================================
   gba_module_ads Specific Styles
   ========================================================================== */

.badge-gba {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(16, 185, 129, 0.25));
  border: 1px solid rgba(99, 102, 241, 0.4);
  color: #a5b4fc;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
  letter-spacing: 0.3px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.btn-success {
  background: var(--success);
  color: #ffffff;
  border: 1px solid transparent;
  font-weight: 600;
}

.btn-success:hover {
  background: #059669;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.schema-toggle-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 10px 16px;
  background: var(--bg-subpanel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
}

.schema-toggle-left, .schema-toggle-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toggle-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.segmented-pills {
  display: inline-flex;
  background: var(--bg-canvas);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 2px;
  gap: 2px;
}

.pill-option {
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 6px;
  color: var(--text-muted);
  transition: all 0.15s ease;
  cursor: pointer;
  background: none;
  border: none;
}

.pill-option:hover {
  color: var(--text-primary);
}

.pill-option.active {
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.3);
}

/* Carousel Subcard */
.carousel-card {
  border: 1px solid var(--border-strong);
  background: var(--bg-subpanel);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-top: 14px;
}

.carousel-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.carousel-badge {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fbbf24;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}

/* Dropdown Menu for Action buttons */
.dropdown-menu-wrapper {
  position: relative;
  display: inline-block;
}

.action-dropdown-list {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 250px;
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 6px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.action-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 12.5px;
  transition: all 0.15s ease;
  text-align: left;
  width: 100%;
}

.action-dropdown-item:hover {
  background: var(--bg-hover);
  color: var(--accent);
}

.action-dropdown-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.action-dropdown-item small {
  display: block;
  font-size: 10.5px;
  color: var(--text-muted);
}

.badge-notice {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 7px;
  border-radius: 4px;
  margin-left: 6px;
}

.info-tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  margin-left: 6px;
  color: var(--text-muted);
  cursor: help;
  vertical-align: middle;
  border-radius: 50%;
  transition: color 0.15s ease, background-color 0.15s ease, transform 0.15s ease;
  flex-shrink: 0;
  user-select: none;
}

.info-tip:hover {
  color: var(--accent);
  background-color: var(--accent-soft);
  transform: scale(1.18);
}

.info-tip svg {
  width: 13px;
  height: 13px;
  pointer-events: none;
}

.floating-tooltip {
  position: fixed;
  z-index: 100000;
  max-width: 290px;
  padding: 8px 12px;
  background: #0f172a;
  color: #f8fafc;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  font-size: 11.5px;
  line-height: 1.45;
  font-weight: 400;
  box-shadow: 0 12px 28px -4px rgba(0, 0, 0, 0.65), 0 4px 10px -2px rgba(0, 0, 0, 0.4);
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s cubic-bezier(0.16, 1, 0.3, 1), transform 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  letter-spacing: normal;
  text-transform: none;
  word-break: break-word;
}

[data-theme="light"] .floating-tooltip {
  background: #1e293b;
  color: #f8fafc;
  border-color: #334155;
  box-shadow: 0 10px 25px -4px rgba(15, 23, 42, 0.25), 0 4px 8px -2px rgba(15, 23, 42, 0.15);
}

.floating-tooltip.visible {
  opacity: 1;
  transform: translateY(0);
}



.login-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-canvas);
}

.login-overlay.hidden {
  display: none;
}

.login-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: min(360px, calc(100vw - 32px));
  padding: 24px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.login-card h2 {
  margin: 0;
  color: var(--text-primary);
}

.login-card p {
  margin: 0;
  color: var(--text-muted);
}

.login-card input {
  padding: 10px 12px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
}

.login-card input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.login-error {
  min-height: 18px;
  color: var(--danger);
  font-size: 13px;
}

.flow-switch-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.flow-switch {
  display: flex;
  padding: 12px 14px;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  transition: box-shadow 0.15s ease, background 0.15s ease;
}

.flow-switch:hover {
  background: var(--bg-hover);
}

.flow-switch:has(input:checked) {
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.flow-switch .switch-slider {
  flex-shrink: 0;
}

@media (max-width: 720px) {
  .flow-switch-grid {
    grid-template-columns: 1fr;
  }
}

.flow-switch .info-tip {
  margin-left: auto;
  flex-shrink: 0;
}