/* ==========================================================================
   Kevin Patel - DevTools Offline Developer Swiss-Army Utilities Suite
   Developer-Focused IDE Theme (High Contrast Dark & Light)
   ========================================================================== */

.devtools-section {
  position: relative;
  z-index: 10;
  padding-block: 1.25rem 3rem;
}

.devtools-section .container {
  max-width: 1440px;
}

.devtools-section .section-header.dt-section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  max-width: 100%;
}

.devtools-section .section-badge {
  margin-bottom: 0.35rem;
}

.devtools-section .section-title {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  margin-bottom: 0;
}

.dt-section-header-stats {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.dt-stat-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-emerald);
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid rgba(52, 211, 153, 0.25);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  cursor: default;
}

.dt-stat-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  display: inline-block;
}

.dt-fullscreen-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.4);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.15);
  user-select: none;
}

.dt-fullscreen-trigger-btn:hover {
  background: var(--accent-cyan) !important;
  color: var(--text-inverse) !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 20px var(--accent-cyan-glow);
  transform: translateY(-1px);
}

/* Auto-Sense Universal Input Box */
.dt-autosense-box {
  background: var(--bg-glass-card);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-glow);
}

.dt-autosense-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.dt-autosense-title {
  color: var(--accent-cyan);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: default;
}

.dt-autosense-badge {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.dt-autosense-textarea {
  width: 100%;
  min-height: 48px;
  height: 48px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  padding: 0.65rem 0.85rem;
  resize: vertical;
  outline: none;
  transition: height var(--transition-fast), border-color var(--transition-fast);
}

.dt-autosense-textarea:focus {
  border-color: var(--accent-cyan);
  height: 72px;
}


/* Collapsible Sidebar States */
.dt-app-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 1.5rem;
  background: var(--bg-glass-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 760px;
  box-shadow: var(--shadow-md);
  transition: grid-template-columns 0.25s ease;
}

.dt-app-layout.sidebar-collapsed {
  grid-template-columns: 1fr;
}

.dt-app-layout.sidebar-collapsed .dt-sidebar {
  display: none;
}

.dt-sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 700;
  padding-bottom: 0.2rem;
}

.dt-workspace-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.dt-sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 1.25rem 1rem;
  gap: 0.9rem;
}

.dt-search-box {
  position: relative;
}

.dt-search-box input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  padding: 0.65rem 0.85rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.dt-search-box input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

.dt-categories {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
  gap: 0.3rem;
  padding: 0.15rem 0 0.4rem;
  margin-bottom: 0.45rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(56, 189, 248, 0.25) transparent;
  -webkit-overflow-scrolling: touch;
}

.dt-categories::-webkit-scrollbar {
  height: 3px;
}

.dt-categories::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.dt-cat-tab {
  flex-shrink: 0;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 3px 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.dt-cat-tab:hover {
  background: rgba(56, 189, 248, 0.12);
  color: var(--text-primary);
  border-color: var(--accent-cyan);
}

.dt-cat-tab.active {
  background: var(--accent-cyan) !important;
  color: var(--text-inverse) !important;
  border-color: var(--accent-cyan) !important;
  font-weight: 700 !important;
  box-shadow: 0 0 10px var(--accent-cyan-glow) !important;
}

/* Tool Navigation List */
.dt-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  overflow-y: auto;
  max-height: 620px;
  padding-right: 4px;
}

.dt-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dt-nav-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.dt-nav-item.active {
  background: rgba(56, 189, 248, 0.15) !important;
  border-color: var(--accent-cyan) !important;
  border-left: 3px solid var(--accent-cyan) !important;
}

.dt-nav-item.active .dt-nav-title {
  color: var(--accent-cyan) !important;
  font-weight: 700 !important;
}

.dt-nav-icon {
  font-size: 1.2rem;
  width: 26px;
  text-align: center;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.dt-nav-info {
  flex: 1;
  min-width: 0;
}

.dt-nav-title {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dt-nav-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dt-nav-badge {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}

/* Active Tool Workspace */
.dt-workspace {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.dt-tool-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.dt-tool-title {
  font-size: 1.45rem;
  color: var(--text-primary);
  font-weight: 800;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.dt-tool-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Toolbars & Action Buttons */
.dt-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.dt-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.dt-actions {
  display: flex;
  gap: 0.4rem;
}

.dt-chip-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.76rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dt-chip-btn:hover,
label.dt-chip-btn:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

/* JSONPath Live Inspector & Filter Bar */
.dt-jsonpath-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.dt-jsonpath-crumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dt-jsonpath-crumb code {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.dt-jsonpath-query-wrap {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}

.dt-jsonpath-query-wrap input {
  flex: 1;
}

/* Textareas & Enlarged Code Panes */
.dt-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.dt-pane {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dt-pane-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.dt-textarea {
  width: 100%;
  min-height: 480px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.65;
  padding: 1rem;
  outline: none;
  resize: vertical;
  tab-size: 2;
  transition: border-color var(--transition-fast);
}

.dt-textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.15);
}


.dt-textarea-compact,
#jwtInput,
.dt-jwt-input {
  min-height: 75px !important;
  height: 85px !important;
  max-height: 140px !important;
  line-height: 1.45 !important;
  font-size: 0.84rem !important;
  word-break: break-all !important;
  padding: 0.65rem 0.85rem !important;
  resize: vertical !important;
}

#jwtHeaderViewer,
#jwtPayloadViewer {
  min-height: 180px !important;
  height: 240px !important;
  max-height: 320px !important;
}

.dt-textarea-large {
  min-height: 540px;
}

.dt-input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  padding: 0.65rem 0.9rem;
  outline: none;
}

.dt-input:focus {
  border-color: var(--accent-cyan);
}

.dt-input-inline {
  width: 75px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 3px 6px;
}

.dt-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.dt-field-group label {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.dt-options-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  align-items: center;
}

.dt-meta-stats {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.dt-badge-pill {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  font-family: var(--font-mono);
  font-weight: 700;
}

.dt-pill-success {
  background: rgba(52, 211, 153, 0.15);
  color: var(--accent-emerald);
  border: 1px solid var(--accent-emerald);
}

.dt-pill-error {
  background: rgba(248, 113, 113, 0.15);
  color: var(--accent-rose);
  border: 1px solid var(--accent-rose);
}

.dt-pill-warning {
  background: rgba(251, 191, 36, 0.15);
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
}

/* Hashes & Checksums Matrix */
.dt-hashes-matrix {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.dt-hash-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.dt-hash-name {
  width: 85px;
  font-size: 0.84rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-cyan);
}

.dt-hash-val {
  flex: 1;
  font-size: 0.8rem !important;
}

/* Diff Viewer */
.dt-diff-viewer {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  max-height: 480px;
  overflow-y: auto;
  line-height: 1.65;
}

.dt-diff-line {
  padding: 3px 8px;
  border-radius: 4px;
  white-space: pre-wrap;
  word-break: break-all;
}

.dt-diff-num {
  color: var(--text-muted);
  width: 35px;
  display: inline-block;
}

.dt-diff-sym {
  font-weight: 800;
  margin-right: 8px;
}

.dt-diff-add {
  background: rgba(52, 211, 153, 0.15);
  color: #34d399;
}

.dt-diff-del {
  background: rgba(248, 113, 113, 0.15);
  color: #f87171;
}

/* Table Matrix */
.dt-table-wrapper {
  overflow-x: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.dt-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.dt-table th,
.dt-table td {
  padding: 0.7rem 0.95rem;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
}

.dt-table th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--accent-cyan);
  font-weight: 700;
}

/* Stats Metrics Grid */
.dt-stats-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
}

.dt-stat-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
}

.dt-stat-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

.dt-stat-lbl {
  font-size: 0.76rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.dt-live-clock-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-primary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.35rem;
}

.dt-epoch-results-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.dt-epoch-item {
  display: flex;
  justify-content: space-between;
  padding: 0.7rem;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.84rem;
}

.dt-epoch-label {
  color: var(--text-muted);
}

.dt-epoch-val {
  color: var(--accent-cyan);
  font-weight: 600;
}

.dt-status-banner {
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  margin-top: 0.85rem;
  display: none;
}

.dt-banner-error {
  background: rgba(248, 113, 113, 0.12);
  color: var(--accent-rose);
  border: 1px solid var(--accent-rose);
}

.dt-color-matrix {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.dt-color-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
}

.dt-color-row span {
  width: 55px;
  color: var(--text-muted);
}

/* Deep Architecture Expandable Container */
.portfolio-deep-dive {
  margin: 3rem 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-glass-card);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.portfolio-deep-dive summary {
  padding: 1.25rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  background: rgba(255, 255, 255, 0.02);
  transition: background var(--transition-fast);
}

.portfolio-deep-dive summary:hover {
  background: rgba(56, 189, 248, 0.08);
}

.portfolio-deep-dive[open] summary {
  border-bottom: 1px solid var(--border-color);
  color: var(--accent-emerald);
}

.deep-dive-content {
  padding: 1.5rem 0;
}

/* Brand offline pill */
.nav-brand-badge {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  background: rgba(52, 211, 153, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(52, 211, 153, 0.3);
  padding: 2px 7px;
  border-radius: var(--radius-full);
  margin-left: 0.5rem;
  vertical-align: middle;
}

/* Light Theme Overrides */
[data-theme="clean-light"] .dt-nav-item:hover {
  background: rgba(0, 0, 0, 0.04);
}

[data-theme="clean-light"] .dt-nav-item.active {
  background: rgba(2, 132, 199, 0.12);
  border-color: var(--accent-cyan);
}

[data-theme="clean-light"] .dt-nav-badge {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-secondary);
}

[data-theme="clean-light"] .dt-chip-btn {
  background: rgba(0, 0, 0, 0.04);
  border-color: var(--border-color);
}

[data-theme="clean-light"] .dt-chip-btn:hover,
label.dt-chip-btn:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

[data-theme="clean-light"] .dt-table th {
  background: rgba(0, 0, 0, 0.03);
}

/* Custom Scrollbars (Firefox & WebKit standard) */
.dt-nav-list,
.dt-textarea,
.dt-workspace,
.dt-diff-viewer,
.dt-table-wrapper {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.dt-nav-list::-webkit-scrollbar,
.dt-textarea::-webkit-scrollbar,
.dt-workspace::-webkit-scrollbar,
.dt-diff-viewer::-webkit-scrollbar,
.dt-table-wrapper::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.dt-nav-list::-webkit-scrollbar-track,
.dt-textarea::-webkit-scrollbar-track,
.dt-workspace::-webkit-scrollbar-track,
.dt-diff-viewer::-webkit-scrollbar-track,
.dt-table-wrapper::-webkit-scrollbar-track {
  background: transparent;
}

.dt-nav-list::-webkit-scrollbar-thumb,
.dt-textarea::-webkit-scrollbar-thumb,
.dt-workspace::-webkit-scrollbar-thumb,
.dt-diff-viewer::-webkit-scrollbar-thumb,
.dt-table-wrapper::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.dt-nav-list::-webkit-scrollbar-thumb:hover,
.dt-textarea::-webkit-scrollbar-thumb:hover,
.dt-workspace::-webkit-scrollbar-thumb:hover,
.dt-diff-viewer::-webkit-scrollbar-thumb:hover,
.dt-table-wrapper::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Responsive adjustments */
@media (max-width: 960px) {
  .dt-app-layout {
    grid-template-columns: 1fr;
  }

  .dt-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .dt-grid-2 {
    grid-template-columns: 1fr;
  }

  .dt-stats-matrix {
    grid-template-columns: repeat(2, 1fr);
  }
}


/* ==========================================================================
   Tooltips & Multi-Mode Sidebar (Full, Mini 68px, Hidden)
   ========================================================================== */

/* Multi-Mode Sidebar */
.dt-app-layout.sidebar-mini {
  grid-template-columns: 68px 1fr;
}

.dt-app-layout.sidebar-mini .dt-sidebar {
  padding: 0.75rem 0.35rem;
  align-items: center;
}

.dt-app-layout.sidebar-mini .dt-sidebar-header span,
.dt-app-layout.sidebar-mini .dt-search-box,
.dt-app-layout.sidebar-mini .dt-categories,
.dt-app-layout.sidebar-mini .dt-nav-info,
.dt-app-layout.sidebar-mini .dt-nav-badge {
  display: none !important;
}

.dt-app-layout.sidebar-mini .dt-nav-item {
  padding: 0.65rem 0.4rem;
  justify-content: center;
  width: 48px;
  border-radius: var(--radius-md);
}

.dt-app-layout.sidebar-mini .dt-nav-icon {
  font-size: 1.35rem;
  margin: 0;
}

/* Global Floating Tooltip Engine (Viewport Fixed & Unclipped) */
.dt-floating-tooltip {
  position: fixed;
  pointer-events: none !important;
  background: #0f172a;
  color: #f8fafc;
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  line-height: 1.4;
  white-space: pre-wrap;
  max-width: 340px;
  width: max-content;
  z-index: 100000;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.12s ease, transform 0.12s ease;
  transform: translateY(4px);
}

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

[data-theme="clean-light"] .dt-floating-tooltip {
  background: #ffffff;
  color: #0f172a;
  border-color: #cbd5e1;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.18);
}




/* ==========================================================================
   SavvyTime-Inspired Timezone Converter & Planner Styles
   ========================================================================== */
.dt-tz-board {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.dt-tz-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color var(--transition-fast);
}

.dt-tz-card:hover {
  border-color: var(--border-glow);
}

.dt-tz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.dt-tz-info {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.dt-tz-abbr {
  font-size: 1.15rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

.dt-tz-city {
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 600;
}

.dt-tz-offset {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.dt-tz-time-display {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.dt-tz-digital {
  font-size: 1.4rem;
  font-family: var(--font-mono);
  font-weight: 800;
  color: var(--text-primary);
}

.dt-tz-date {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.dt-tz-timeline {
  display: grid;
  grid-template-columns: repeat(24, 1fr);
  gap: 2px;
  background: rgba(0, 0, 0, 0.25);
  padding: 3px;
  border-radius: 4px;
}

.dt-tz-hour-cell {
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-family: var(--font-mono);
  border-radius: 2px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dt-tz-hour-cell:hover {
  filter: brightness(1.2);
}

.dt-tz-hour-cell.active-hour {
  border: 1.5px solid var(--accent-cyan);
  font-weight: 800;
  color: #ffffff;
  transform: scale(1.08);
  z-index: 2;
}

/* Business / Sleep / Evening Color Tints */
.dt-hour-business {
  background: rgba(52, 211, 153, 0.25);
  color: var(--accent-emerald);
}

.dt-hour-evening {
  background: rgba(251, 191, 36, 0.18);
  color: var(--accent-amber);
}

.dt-hour-night {
  background: rgba(15, 23, 42, 0.6);
  color: rgba(255, 255, 255, 0.3);
}

.dt-tz-slider-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

.dt-tz-range {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  accent-color: var(--accent-cyan);
  cursor: pointer;
  margin-top: 0.75rem;
}

/* json2csharp Options Bar */
.dt-csharp-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.dt-csharp-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.dt-csharp-field label {
  font-size: 0.76rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-weight: 600;
}


/* Search Input Clear Button & Autocomplete Dropdown */
.dt-search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.dt-search-box input {
  width: 100%;
  padding-right: 28px !important;
}

.dt-clear-input-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 50%;
  display: none;
  line-height: 1;
  transition: all var(--transition-fast);
  z-index: 5;
}

.dt-clear-input-btn:hover {
  color: var(--accent-rose);
  background: rgba(248, 113, 113, 0.15);
}

.dt-clear-input-btn.visible {
  display: block;
}

/* Timezone Quick Add Pills & Autocomplete List */
.dt-tz-quick-pills {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.dt-tz-pill-btn {
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dt-tz-pill-btn:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
}

.dt-tz-search-wrap {
  position: relative;
  flex: 1;
  min-width: 260px;
}

.dt-tz-suggestions {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  max-height: 240px;
  overflow-y: auto;
  z-index: 100;
  display: none;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.dt-tz-suggestions.visible {
  display: block;
}

.dt-tz-sugg-item {
  padding: 0.5rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-fast);
}

.dt-tz-sugg-item:hover,
.dt-tz-sugg-item.selected {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
}

.dt-tz-time-editor-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

.dt-tz-editable-time {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 800;
  width: 140px;
  outline: none;
}

.dt-tz-editable-time:focus {
  color: var(--accent-cyan);
}


/* ==========================================================================
   Syntax Highlighting Token System (Cyber Dark & Clean Light)
   ========================================================================== */
.dt-code-viewer {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.65;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  overflow-y: auto;
  min-height: 480px;
  max-height: 700px;
  tab-size: 2;
  white-space: pre;
  margin: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
  user-select: text;
}

/* Tokens */
.hl-key {
  color: var(--accent-cyan);
  font-weight: 700;
}

.hl-string {
  color: var(--accent-emerald);
}

.hl-number {
  color: var(--accent-amber);
  font-weight: 600;
}

.hl-boolean {
  color: var(--accent-rose);
  font-weight: 700;
}

.hl-null {
  color: var(--accent-purple);
  font-style: italic;
}

.hl-keyword {
  color: #60a5fa;
  font-weight: 700;
}

.hl-type {
  color: #2dd4bf;
  font-weight: 600;
}

.hl-attribute {
  color: #facc15;
}

.hl-function {
  color: #818cf8;
  font-weight: 600;
}

.hl-comment {
  color: var(--text-muted);
  font-style: italic;
}

.hl-punctuation {
  color: rgba(255, 255, 255, 0.4);
}

.hl-selector {
  color: var(--accent-cyan);
  font-weight: 700;
}

.hl-property {
  color: #38bdf8;
}

/* Light Theme Tokens */
[data-theme="clean-light"] .hl-key {
  color: #0284c7;
}

[data-theme="clean-light"] .hl-string {
  color: #059669;
}

[data-theme="clean-light"] .hl-number {
  color: #d97706;
}

[data-theme="clean-light"] .hl-boolean {
  color: #e11d48;
}

[data-theme="clean-light"] .hl-null {
  color: #7c3aed;
}

[data-theme="clean-light"] .hl-keyword {
  color: #2563eb;
}

[data-theme="clean-light"] .hl-type {
  color: #0d9488;
}

[data-theme="clean-light"] .hl-attribute {
  color: #b45309;
}

[data-theme="clean-light"] .hl-function {
  color: #4f46e5;
}

[data-theme="clean-light"] .hl-comment {
  color: #64748b;
}

[data-theme="clean-light"] .hl-punctuation {
  color: #94a3b8;
}

[data-theme="clean-light"] .hl-selector {
  color: #0284c7;
}

[data-theme="clean-light"] .hl-property {
  color: #0369a1;
}


/* ==========================================================================
   Color Studio & Glassmorphism Generator Styles
   ========================================================================== */
.dt-color-studio-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
}

.dt-color-preview-card {
  height: 180px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.dt-color-preview-label {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.6);
  color: #ffffff;
  width: max-content;
}

.dt-color-conversions-table {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.dt-color-conv-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
}

.dt-color-conv-label {
  width: 90px;
  font-size: 0.76rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-weight: 700;
  flex-shrink: 0;
}

.dt-color-conv-val {
  flex: 1;
  background: transparent;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--text-primary);
  outline: none;
}

.dt-contrast-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}

.dt-contrast-card {
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dt-contrast-ratio {
  font-size: 1.4rem;
  font-weight: 800;
  font-family: var(--font-mono);
}

/* Glassmorphism Generator */
.dt-glass-preview-bg {
  min-height: 280px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #0ea5e9, #6366f1, #ec4899);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.dt-glass-card-sample {
  padding: 1.75rem;
  border-radius: 16px;
  max-width: 380px;
  width: 100%;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: all 0.15s ease;
}

@media (max-width: 860px) {
  .dt-color-studio-grid {
    grid-template-columns: 1fr;
  }
}


/* ==========================================================================
   Live Input Syntax Highlighting Overlay System
   ========================================================================== */
.dt-code-editor-container {
  position: relative;
  min-height: 480px;
  max-height: 700px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-sizing: border-box;
  overflow: hidden;
}

.dt-code-editor-pre,
.dt-code-editor-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 1rem 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.65;
  tab-size: 2;
  white-space: pre-wrap;
  word-break: break-word;
  box-sizing: border-box;
  border: none;
  outline: none;
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.dt-code-editor-pre {
  pointer-events: none;
  background: transparent;
  z-index: 1;
  color: var(--text-primary);
  user-select: none;
}

.dt-code-editor-input {
  background: transparent;
  color: var(--text-primary);
  caret-color: var(--accent-cyan);
  z-index: 2;
  resize: none;
}

.dt-code-editor-input.plain-mode {
  color: var(--text-primary);
}

.dt-code-editor-input::selection {
  background: rgba(56, 189, 248, 0.35);
  color: transparent;
}

[data-theme="clean-light"] .dt-code-editor-input {
  caret-color: #0284c7;
}


/* ==========================================================================
   DevTools Hero Showcase & Privacy Specs Banner (Collapsible + Interactive Tooltips)
   ========================================================================== */
.dt-hero-banner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.65rem 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
}

.dt-hero-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-indigo, #6366f1), var(--accent-emerald));
}

.dt-hero-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  width: 100%;
}

.dt-hero-bar-left {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.dt-hero-pill-badges {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.dt-mini-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-mono);
  background: rgba(56, 189, 248, 0.08);
  color: var(--text-secondary);
  border: 1px solid rgba(56, 189, 248, 0.2);
  cursor: help;
  transition: all var(--transition-fast);
  user-select: none;
}

.dt-mini-pill:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.16);
  transform: translateY(-1px);
}

.dt-hero-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-md);
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.3);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.dt-hero-toggle-btn:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
}

.dt-hero-toggle-arrow {
  display: inline-block;
  transition: transform 0.24s ease;
  font-size: 0.82rem;
}

.dt-hero-banner.expanded .dt-hero-toggle-arrow {
  transform: rotate(180deg);
}

.dt-hero-collapse-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease, opacity 0.24s ease;
  opacity: 0;
  overflow: hidden;
}

.dt-hero-banner.expanded .dt-hero-collapse-content {
  grid-template-rows: 1fr;
  opacity: 1;
}

.dt-hero-collapse-inner {
  min-height: 0;
  overflow: hidden;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-subtle, rgba(255, 255, 255, 0.1));
  margin-top: 0.75rem;
}

.dt-hero-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--accent-cyan);
  display: inline-block;
  cursor: help;
}

.dt-hero-heading {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 0.4rem 0;
  line-height: 1.35;
}

.dt-hero-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0 0 1.25rem 0;
  max-width: 950px;
}

.dt-hero-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.dt-hero-feat-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: help;
}

.dt-hero-feat-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.dt-hero-feat-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.dt-hero-feat-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.dt-hero-feat-text strong {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.dt-hero-feat-text span {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

@media (max-width: 1100px) {
  .dt-hero-feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .dt-hero-feature-grid {
    grid-template-columns: 1fr;
  }

  .dt-hero-banner {
    padding: 0.75rem 1rem;
  }

  .dt-hero-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .dt-hero-toggle-btn {
    width: 100%;
    justify-content: center;
  }
}


/* ==========================================================================
   Text Comparer Studio (DevTools Architecture)
   ========================================================================== */
.dt-diff-config-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.dt-diff-config-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-primary);
}

.dt-diff-input-wrap {
  position: relative;
  display: flex;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  overflow: hidden;
  height: 220px;
}

.dt-diff-gutter {
  width: 44px;
  background: rgba(0, 0, 0, 0.25);
  border-right: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.65;
  padding: 0.75rem 0;
  text-align: right;
  padding-right: 8px;
  user-select: none;
  overflow: hidden;
  box-sizing: border-box;
}

.dt-diff-input-area {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.65;
  padding: 0.75rem 1rem;
  resize: none;
  tab-size: 2;
  white-space: pre;
  overflow: auto;
  box-sizing: border-box;
}

.dt-diff-output-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  overflow: hidden;
  margin-top: 1.25rem;
}

.dt-diff-side-by-side {
  display: grid;
  grid-template-columns: 1fr 1fr;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.65;
  max-height: 480px;
  overflow-y: auto;
  position: relative;
}

.dt-diff-side-col {
  display: flex;
  flex-direction: column;
  overflow-x: auto;
}

.dt-diff-side-col.left-col {
  border-right: 1px solid var(--border-color);
}

.dt-diff-row {
  display: flex;
  align-items: center;
  min-height: 26px;
  padding: 0 8px;
  white-space: pre;
  font-family: var(--font-mono);
}

.dt-diff-row-num {
  width: 44px;
  color: var(--text-muted);
  text-align: right;
  padding-right: 8px;
  user-select: none;
  font-size: 0.76rem;
  flex-shrink: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  margin-right: 8px;
}

.dt-diff-row.del {
  background: rgba(244, 63, 94, 0.22);
  color: #fca5a5;
}

.dt-diff-row.add {
  background: rgba(16, 185, 129, 0.22);
  color: #86efac;
}

.dt-diff-row.empty {
  background: repeating-linear-gradient(45deg,
      rgba(255, 255, 255, 0.02),
      rgba(255, 255, 255, 0.02) 10px,
      rgba(255, 255, 255, 0.04) 10px,
      rgba(255, 255, 255, 0.04) 20px);
}

.dt-diff-char-add {
  background: rgba(52, 211, 153, 0.45);
  color: #ffffff;
  border-radius: 2px;
  padding: 1px 2px;
  font-weight: 700;
}

.dt-diff-char-del {
  background: rgba(244, 63, 94, 0.45);
  color: #ffffff;
  border-radius: 2px;
  padding: 1px 2px;
  text-decoration: line-through;
}

[data-theme="clean-light"] .dt-diff-row.del {
  background: rgba(244, 63, 94, 0.14);
  color: #b91c1c;
}

[data-theme="clean-light"] .dt-diff-row.add {
  background: rgba(16, 185, 129, 0.14);
  color: #047857;
}

[data-theme="clean-light"] .dt-diff-gutter {
  background: #f1f5f9;
}


/* ==========================================================================
   Syntax Highlighting Token Colors (JSON, SQL, XML, YAML, C#, TS/JS, CSS)
   ========================================================================== */
.dt-code-viewer {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.65;
  color: #e2e8f0;
  tab-size: 2;
  white-space: pre-wrap;
  word-break: break-word;
  overflow: auto;
  min-height: 200px;
  max-height: 520px;
}

.hl-key {
  color: #38bdf8;
  /* Vibrant Sky Cyan */
  font-weight: 600;
}

.hl-string {
  color: #34d399;
  /* Emerald Green */
}

.hl-number {
  color: #fb923c;
  /* Bright Amber Orange */
}

.hl-boolean {
  color: #f472b6;
  /* Magenta / Pink */
  font-weight: 700;
}

.hl-null {
  color: #94a3b8;
  /* Muted Slate */
  font-style: italic;
}

.hl-keyword {
  color: #818cf8;
  /* Indigo Purple */
  font-weight: 700;
}

.hl-type {
  color: #2dd4bf;
  /* Teal */
  font-weight: 600;
}

.hl-attribute {
  color: #fbbf24;
  /* Gold Yellow */
}

.hl-selector {
  color: #a78bfa;
  /* Violet */
  font-weight: 600;
}

.hl-function {
  color: #60a5fa;
  /* Blue */
  font-weight: 600;
}

.hl-comment {
  color: #64748b;
  /* Slate Gray */
  font-style: italic;
}

.hl-punctuation {
  color: #94a3b8;
}

/* Light Theme Syntax Highlighting */
[data-theme="clean-light"] .dt-code-viewer {
  background: #f8fafc;
  border-color: #cbd5e1;
  color: #0f172a;
}

[data-theme="clean-light"] .hl-key {
  color: #0284c7;
}

[data-theme="clean-light"] .hl-string {
  color: #059669;
}

[data-theme="clean-light"] .hl-number {
  color: #ea580c;
}

[data-theme="clean-light"] .hl-boolean {
  color: #db2777;
}

[data-theme="clean-light"] .hl-keyword {
  color: #4f46e5;
}

[data-theme="clean-light"] .hl-type {
  color: #0d9488;
}

[data-theme="clean-light"] .hl-attribute {
  color: #d97706;
}

[data-theme="clean-light"] .hl-selector {
  color: #7c3aed;
}

[data-theme="clean-light"] .hl-function {
  color: #2563eb;
}

[data-theme="clean-light"] .hl-comment {
  color: #94a3b8;
}


/* ==========================================================================
   Live Syntax-Highlighted Code Editor (Input & Output Overlays)
   ========================================================================== */
.dt-live-editor-wrap {
  position: relative;
  width: 100%;
  min-height: 480px;
  height: 520px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.dt-code-viewer {
  width: 100%;
  min-height: 480px;
  height: 520px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin: 0;
  padding: 1rem 1.15rem;
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, monospace !important;
  font-size: 0.88rem !important;
  line-height: 1.65 !important;
  tab-size: 2 !important;
  white-space: pre-wrap !important;
  word-break: break-word !important;
  box-sizing: border-box !important;
  overflow: auto !important;
  color: var(--text-primary);
}

.dt-live-editor-pre,
.dt-live-editor-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 1rem 1.15rem;
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, Monaco, monospace !important;
  font-size: 0.88rem !important;
  line-height: 1.65 !important;
  tab-size: 2 !important;
  letter-spacing: 0px !important;
  white-space: pre-wrap !important;
  word-break: break-word !important;
  box-sizing: border-box !important;
  border: none !important;
  outline: none !important;
  overflow: auto !important;
}

.dt-live-editor-pre {
  pointer-events: none !important;
  user-select: none !important;
  z-index: 1;
  background: transparent !important;
  color: var(--text-primary);
}

.dt-live-editor-pre code {
  font-family: inherit !important;
  font-size: inherit !important;
  line-height: inherit !important;
  white-space: inherit !important;
  background: transparent !important;
  padding: 0 !important;
}

.dt-live-editor-input {
  z-index: 2;
  background: transparent !important;
  color: transparent !important;
  caret-color: var(--accent-cyan) !important;
  resize: none;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.dt-live-editor-input::selection {
  background: rgba(56, 189, 248, 0.45) !important;
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
}

.dt-textarea::selection,
.dt-input::selection,
.dt-input-inline::selection,
.dt-code-viewer::selection,
.dt-code-viewer *::selection {
  background: rgba(56, 189, 248, 0.45) !important;
  color: #ffffff !important;
  -webkit-text-fill-color: #ffffff !important;
}

.dt-live-editor-input.plain-mode {
  color: var(--text-primary) !important;
}

.dt-live-editor-input.plain-mode::selection {
  color: #ffffff !important;
  background: var(--accent-cyan) !important;
}

.dt-live-editor-pre.plain-hidden {
  display: none !important;
}


/* ==========================================================================
   DevTools Fullscreen / Standalone Desktop App Mode
   ========================================================================== */
.dt-app-wrapper {
  position: relative;
  width: 100%;
}

.dt-app-titlebar {
  display: none;
}

.dt-fullscreen-autosense-drawer {
  display: none;
}

/* --- Fullscreen Mode Active --- */
body.dt-fullscreen-mode {
  overflow: hidden !important;
}

body.dt-fullscreen-mode #navbar,
body.dt-fullscreen-mode .hero-section,
body.dt-fullscreen-mode .section:not(.devtools-section),
body.dt-fullscreen-mode .dt-section-header,
body.dt-fullscreen-mode .dt-hero-banner,
body.dt-fullscreen-mode #dtAutoSenseBox,
body.dt-fullscreen-mode #deepArchitectureDrawerSection,
body.dt-fullscreen-mode footer,
body.dt-fullscreen-mode .skip-link,
body.dt-fullscreen-mode .ambient-glow,
body.dt-fullscreen-mode .matrix-grid-bg {
  display: none !important;
}

body.dt-fullscreen-mode .devtools-section {
  padding: 0 !important;
  margin: 0 !important;
  max-width: 100vw !important;
  width: 100vw !important;
}

body.dt-fullscreen-mode .devtools-section .container {
  max-width: 100vw !important;
  width: 100vw !important;
  padding: 0 !important;
  margin: 0 !important;
}

body.dt-fullscreen-mode .dt-app-wrapper {
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: 999990 !important;
  background: var(--bg-primary) !important;
  display: flex !important;
  flex-direction: column !important;
  margin: 0 !important;
  padding: 0 !important;
  border-radius: 0 !important;
  border: none !important;
  box-shadow: none !important;
  overflow: hidden !important;
}

body.dt-fullscreen-mode .dt-app-titlebar {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  height: 44px;
  flex-shrink: 0;
  z-index: 25;
  user-select: none;
}

.dt-titlebar-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
}

.dt-titlebar-brand {
  font-weight: 800;
  color: var(--accent-cyan);
  font-size: 0.86rem;
  white-space: nowrap;
}

.dt-titlebar-divider {
  color: var(--text-muted);
  opacity: 0.4;
}

.dt-titlebar-tool-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 700;
  color: var(--text-primary);
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 240px;
}

.dt-titlebar-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.7rem;
  color: var(--accent-emerald);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.25);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  white-space: nowrap;
}

.dt-titlebar-center {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.72rem;
}

.dt-titlebar-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.dt-kbd,
.dt-kbd-exit {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent-cyan);
}

.dt-kbd-exit {
  color: #fca5a5;
  background: rgba(248, 113, 113, 0.15);
  border-color: rgba(248, 113, 113, 0.35);
}

.dt-titlebar-right {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

.dt-titlebar-action {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.65rem;
  font-size: 0.74rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.dt-titlebar-action:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
}

.dt-titlebar-exit {
  background: rgba(248, 113, 113, 0.15);
  border-color: rgba(248, 113, 113, 0.4);
  color: #fca5a5;
  font-weight: 700;
}

.dt-titlebar-exit:hover {
  background: var(--accent-rose) !important;
  color: #ffffff !important;
  border-color: var(--accent-rose) !important;
}

/* Fullscreen Slide-Down Auto-Sense Drawer */
.dt-fullscreen-autosense-drawer {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0.6rem 1rem;
  z-index: 20;
  transition: all 0.2s ease;
}

.dt-fullscreen-autosense-drawer.open {
  display: block !important;
}

.dt-fullscreen-autosense-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.dt-fs-as-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.dt-fs-as-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  max-width: 650px;
}

.dt-fs-as-input {
  flex: 1;
  font-size: 0.8rem;
  padding: 0.4rem 0.65rem;
}

/* Layout in Fullscreen Mode */
body.dt-fullscreen-mode .dt-app-layout {
  flex: 1 1 auto !important;
  height: calc(100vh - 44px) !important;
  max-height: calc(100vh - 44px) !important;
  min-height: 0 !important;
  border-radius: 0 !important;
  border: none !important;
  box-shadow: none !important;
  margin: 0 !important;
  background: transparent !important;
}

body.dt-fullscreen-mode .dt-sidebar {
  height: 100% !important;
  max-height: 100% !important;
  overflow-y: auto;
  border-radius: 0 !important;
}

body.dt-fullscreen-mode .dt-nav-list {
  max-height: calc(100vh - 240px);
}

body.dt-fullscreen-mode .dt-workspace {
  height: 100% !important;
  max-height: 100% !important;
  overflow-y: auto;
  padding: 1.25rem 1.75rem;
}

body.dt-fullscreen-mode .dt-code-editor-container {
  height: calc(100vh - 230px);
  min-height: 380px;
  max-height: calc(100vh - 190px);
}

body.dt-fullscreen-mode .dt-textarea-large,
body.dt-fullscreen-mode .dt-textarea:not(#jwtInput):not(.dt-jwt-input):not(.dt-textarea-compact) {
  min-height: calc(100vh - 250px);
}

body.dt-fullscreen-mode #jwtInput,
body.dt-fullscreen-mode .dt-jwt-input {
  min-height: 75px !important;
  height: 85px !important;
  max-height: 140px !important;
}

body.dt-fullscreen-mode #jwtHeaderViewer,
body.dt-fullscreen-mode #jwtPayloadViewer {
  min-height: 240px !important;
  height: calc(100vh - 460px) !important;
  max-height: calc(100vh - 380px) !important;
}

body.dt-fullscreen-mode .dt-diff-container,
body.dt-fullscreen-mode .dt-diff-table-wrap {
  max-height: calc(100vh - 240px);
}

/* Light Theme in Fullscreen */
[data-theme="clean-light"] body.dt-fullscreen-mode .dt-app-wrapper {
  background: #f8fafc !important;
}

[data-theme="clean-light"] body.dt-fullscreen-mode .dt-app-titlebar {
  background: #ffffff;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-titlebar-tool-pill {
  background: rgba(2, 132, 199, 0.08);
  border-color: rgba(2, 132, 199, 0.25);
  color: #0369a1;
}

[data-theme="clean-light"] .dt-titlebar-action {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #334155;
}

[data-theme="clean-light"] .dt-kbd {
  background: #e2e8f0;
  border-color: #cbd5e1;
  color: #0284c7;
}

/* Responsive adjustments for Fullscreen Titlebar */
@media (max-width: 900px) {
  .dt-titlebar-center {
    display: none;
  }
}

@media (max-width: 650px) {
  .dt-titlebar-badge {
    display: none;
  }

  .dt-titlebar-tool-pill {
    max-width: 140px;
  }

  .dt-titlebar-action:not(.dt-titlebar-exit) {
    padding: 0.25rem 0.45rem;
    font-size: 0.7rem;
  }
}


/* ==========================================================================
   Developer-Focused Typography & Ligature Enhancements
   ========================================================================== */
code,
pre,
.dt-code-viewer,
.dt-live-editor-pre,
.dt-live-editor-input,
.dt-textarea,
.dt-input,
.dt-hash-val,
.terminal-screen,
.dt-floating-tooltip {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, Monaco, monospace !important;
  font-feature-settings: "calt" 1, "liga" 1, "zero" 1 !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Developer-Focused Soft Light Theme (.devtools & Utilities)
   ========================================================================== */
[data-theme="clean-light"] .dt-app-wrapper {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

[data-theme="clean-light"] .dt-app-titlebar {
  background: #f8fafc;
  border-bottom-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-sidebar {
  background: #f8fafc;
  border-right-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-sidebar-header {
  border-bottom-color: #e2e8f0;
}

[data-theme="clean-light"] .dt-cat-tab,
[data-theme="clean-light"] .dt-category-chip {
  background: #ffffff;
  color: #475569;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-cat-tab:hover,
[data-theme="clean-light"] .dt-category-chip:hover {
  background: #f1f5f9;
  color: #0f172a;
  border-color: #0284c7;
}

[data-theme="clean-light"] .dt-cat-tab.active,
[data-theme="clean-light"] .dt-category-chip.active {
  background: #0284c7 !important;
  color: #ffffff !important;
  border-color: #0284c7 !important;
  font-weight: 700 !important;
}

[data-theme="clean-light"] .dt-nav-item {
  color: #475569;
  border-left-color: transparent;
}

[data-theme="clean-light"] .dt-nav-item:hover {
  background: #f1f5f9;
  color: #0f172a;
}

[data-theme="clean-light"] .dt-nav-item.active {
  background: #e0f2fe;
  color: #0369a1;
  border-left-color: #0284c7;
  font-weight: 700;
}

[data-theme="clean-light"] .dt-nav-badge {
  background: #f1f5f9;
  color: #64748b;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-workspace {
  background: #ffffff;
}

[data-theme="clean-light"] .dt-autosense-box {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

[data-theme="clean-light"] .dt-pane {
  background: #f8fafc;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-pane-header {
  background: #f1f5f9;
  border-bottom-color: #cbd5e1;
  color: #0f172a;
}

[data-theme="clean-light"] .dt-textarea,
[data-theme="clean-light"] .dt-input,
[data-theme="clean-light"] .dt-select {
  background: #ffffff;
  color: #0f172a;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-textarea:focus,
[data-theme="clean-light"] .dt-input:focus,
[data-theme="clean-light"] .dt-select:focus {
  border-color: #0284c7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

[data-theme="clean-light"] .dt-code-viewer {
  background: #f8fafc;
  color: #0f172a;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-live-editor-wrap {
  background: #ffffff;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-live-editor-pre {
  color: #0f172a;
}

[data-theme="clean-light"] .dt-live-editor-input {
  caret-color: #0284c7 !important;
  color: transparent !important;
}

[data-theme="clean-light"] .dt-live-editor-input.plain-mode {
  color: #0f172a !important;
}

[data-theme="clean-light"] .dt-chip-btn {
  background: #ffffff;
  color: #334155;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-chip-btn:hover,
label.dt-chip-btn:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

[data-theme="clean-light"] .dt-chip-btn.dt-btn-copy {
  background: rgba(2, 132, 199, 0.08);
  color: #0284c7;
  border-color: rgba(2, 132, 199, 0.3);
}

[data-theme="clean-light"] .dt-chip-btn.dt-btn-copy:hover {
  background: #0284c7;
  color: #ffffff;
}

/* Light Theme Syntax Tokens - Developer-Grade Contrast */
[data-theme="clean-light"] .hl-key {
  color: #0369a1;
  font-weight: 600;
}

[data-theme="clean-light"] .hl-string {
  color: #15803d;
}

[data-theme="clean-light"] .hl-number {
  color: #c2410c;
}

[data-theme="clean-light"] .hl-boolean {
  color: #be185d;
  font-weight: 600;
}

[data-theme="clean-light"] .hl-null {
  color: #6b21a8;
  font-weight: 600;
}

[data-theme="clean-light"] .hl-keyword {
  color: #4338ca;
  font-weight: 600;
}

[data-theme="clean-light"] .hl-type {
  color: #0f766e;
  font-weight: 600;
}

[data-theme="clean-light"] .hl-attribute {
  color: #b45309;
}

[data-theme="clean-light"] .hl-function {
  color: #2563eb;
}

[data-theme="clean-light"] .hl-comment {
  color: #64748b;
  font-style: italic;
}

[data-theme="clean-light"] .hl-punctuation {
  color: #475569;
}

[data-theme="clean-light"] .hl-selector {
  color: #4338ca;
  font-weight: 600;
}

[data-theme="clean-light"] .hl-property {
  color: #0369a1;
}

/* Light Theme Diff Tool */
[data-theme="clean-light"] .dt-diff-side-by-side {
  background: #ffffff;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-diff-gutter {
  background: #f1f5f9;
  color: #94a3b8;
  border-right-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-diff-row.del {
  background: rgba(239, 68, 68, 0.08);
  color: #991b1b;
}

[data-theme="clean-light"] .dt-diff-row.add {
  background: rgba(16, 185, 129, 0.08);
  color: #065f46;
}

[data-theme="clean-light"] .dt-diff-char-del {
  background: rgba(239, 68, 68, 0.22);
  color: #7f1d1d;
}

[data-theme="clean-light"] .dt-diff-char-add {
  background: rgba(16, 185, 129, 0.22);
  color: #064e3b;
}

/* Light Theme Timezone Converter */
[data-theme="clean-light"] .dt-tz-card {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

[data-theme="clean-light"] .dt-tz-slider-box {
  background: #ffffff;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-tz-hour-cell.dt-hour-business {
  background: rgba(5, 150, 105, 0.12);
  color: #047857;
}

[data-theme="clean-light"] .dt-tz-hour-cell.dt-hour-evening {
  background: rgba(217, 119, 6, 0.12);
  color: #b45309;
}

[data-theme="clean-light"] .dt-tz-hour-cell.dt-hour-night {
  background: #e2e8f0;
  color: #64748b;
}

[data-theme="clean-light"] .dt-tz-hour-cell.active-hour {
  background: #0284c7;
  color: #ffffff;
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.4);
}

/* Light Theme Floating Tooltips */
[data-theme="clean-light"] .dt-floating-tooltip {
  background: #0f172a;
  color: #f8fafc;
  border-color: #334155;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}


/* Theme Select in Titlebar & Navigation */
.dt-titlebar-theme-wrap {
  display: flex;
  align-items: center;
}

.dt-theme-select {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  transition: all var(--transition-fast);
}

.dt-theme-select:hover,
.dt-theme-select:focus {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

.dt-theme-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

[data-theme="clean-light"] .dt-theme-select {
  background: #ffffff;
  color: #0f172a;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-theme-select:hover,
[data-theme="clean-light"] .dt-theme-select:focus {
  background: #f1f5f9;
  border-color: #0284c7;
  color: #0284c7;
}

[data-theme="clean-light"] .dt-theme-select option {
  background: #ffffff;
  color: #0f172a;
}


/* ==========================================================================
   Sidebar Collapse & Zen Mode Fullscreen Maximize Rules
   ========================================================================== */
.dt-app-layout.sidebar-collapsed,
.dt-app-layout.collapsed,
body.dt-fullscreen-mode .dt-app-layout.sidebar-collapsed,
body.dt-fullscreen-mode .dt-app-layout.collapsed {
  grid-template-columns: 1fr !important;
}

.dt-app-layout.sidebar-collapsed .dt-sidebar,
.dt-app-layout.collapsed .dt-sidebar,
.dt-sidebar.collapsed,
body.dt-fullscreen-mode .dt-sidebar.collapsed {
  display: none !important;
}

.dt-app-layout.sidebar-collapsed .dt-workspace,
.dt-app-layout.collapsed .dt-workspace,
.dt-sidebar.collapsed+.dt-workspace,
body.dt-fullscreen-mode .dt-app-layout.sidebar-collapsed .dt-workspace {
  width: 100% !important;
  max-width: 100% !important;
  grid-column: 1 / -1 !important;
  flex: 1 1 100% !important;
}

/* ==========================================================================
   Universal Single-Line Button, Icon & Chip Rules (Strict No-Wrap)
   ========================================================================== */
.dt-chip-btn,
label.dt-chip-btn,
.dt-btn-copy,
.dt-titlebar-action,
.dt-cat-tab,
.dt-fullscreen-trigger-btn,
.dt-hero-toggle-btn,
.dt-btn-group button,
.dt-btn-group .btn,
.dt-actions button,
.dt-actions label,
.dt-stat-badge,
.dt-mini-pill,
.dt-hero-tag,
.btn-sm,
.btn {
  white-space: nowrap !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex-shrink: 0 !important;
  gap: 0.35rem !important;
  line-height: 1.2 !important;
}

.dt-chip-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.76rem;
  font-family: var(--font-mono);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.dt-chip-btn:hover,
label.dt-chip-btn:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

.dt-pane-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.dt-actions {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  flex-shrink: 0;
}


/* ==========================================================================
   Master Button Hover Contrast & High-Visibility Rules
   ========================================================================== */
.dt-chip-btn:hover,
label.dt-chip-btn:hover,
.dt-btn-copy:hover,
.dt-cat-tab:hover,
.dt-titlebar-action:hover,
.dt-tz-pill-btn:hover,
.dt-hero-toggle-btn:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
}

[data-theme="clean-light"] .dt-chip-btn:hover,
[data-theme="clean-light"] label.dt-chip-btn:hover,
[data-theme="clean-light"] .dt-btn-copy:hover,
[data-theme="clean-light"] .dt-cat-tab:hover,
[data-theme="clean-light"] .dt-titlebar-action:hover,
[data-theme="clean-light"] .dt-tz-pill-btn:hover,
[data-theme="clean-light"] .dt-hero-toggle-btn:hover {
  background: #f1f5f9 !important;
  color: #0284c7 !important;
  border-color: #0284c7 !important;
}

.dt-fullscreen-trigger-btn:hover {
  background: var(--accent-cyan) !important;
  color: var(--text-inverse) !important;
  border-color: var(--accent-cyan) !important;
}


/* ==========================================================================
   Keyboard Shortcuts Modal & Hold-Ctrl KeyHint System
   ========================================================================== */
.dt-key-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  opacity: 0.75;
  margin-left: 0.35rem;
  pointer-events: none;
  transition: all var(--transition-fast);
}

body.dt-show-keyhints .dt-key-badge {
  opacity: 1 !important;
  transform: scale(1.1) !important;
  background: var(--accent-cyan) !important;
  color: var(--text-inverse) !important;
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 10px var(--accent-cyan-glow) !important;
}

[data-theme="clean-light"] .dt-key-badge {
  background: #f1f5f9;
  color: #64748b;
  border-color: #cbd5e1;
}

[data-theme="clean-light"] body.dt-show-keyhints .dt-key-badge {
  background: #0284c7 !important;
  color: #ffffff !important;
  border-color: #0284c7 !important;
}

/* Modal Styling */
.dt-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.dt-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.dt-modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
  width: 100%;
  max-width: 680px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 1.5rem;
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.dt-modal-backdrop.open .dt-modal-card {
  transform: scale(1);
}

.dt-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0.85rem;
}

.dt-shortcuts-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.dt-shortcut-group h4 {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dt-shortcut-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0;
  font-size: 0.84rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

[data-theme="clean-light"] .dt-shortcut-row {
  border-bottom-color: #f1f5f9;
}


/* ==========================================================================
   Universal Active States for Buttons, Chips, Option Groups & Toggles
   ========================================================================== */
.dt-chip-btn.active,
label.dt-chip-btn.active,
.dt-btn-group button.active,
.dt-btn-group .btn.active,
.dt-actions button.active,
.dt-opt-btn.active,
.dt-toggle-btn.active,
.dt-tab-btn.active {
  background: var(--accent-cyan) !important;
  color: var(--text-inverse) !important;
  border-color: var(--accent-cyan) !important;
  font-weight: 700 !important;
  box-shadow: 0 0 12px var(--accent-cyan-glow) !important;
}

[data-theme="clean-light"] .dt-chip-btn.active,
[data-theme="clean-light"] label.dt-chip-btn.active,
[data-theme="clean-light"] .dt-btn-group button.active,
[data-theme="clean-light"] .dt-btn-group .btn.active,
[data-theme="clean-light"] .dt-actions button.active,
[data-theme="clean-light"] .dt-opt-btn.active,
[data-theme="clean-light"] .dt-toggle-btn.active,
[data-theme="clean-light"] .dt-tab-btn.active {
  background: #0284c7 !important;
  color: #ffffff !important;
  border-color: #0284c7 !important;
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.35) !important;
}

/* ==========================================================================
   Markdown Studio Rich Editor Ribbon & Fullscreen Reader Mode
   ========================================================================== */
.dt-suite-badge:hover {
  text-decoration: underline;
  color: var(--accent-cyan) !important;
}

.dt-md-editor-ribbon {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.4rem 0.65rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.dt-ribbon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 2px 7px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.dt-ribbon-btn:hover {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-cyan);
  border-color: rgba(56, 189, 248, 0.3);
}

.dt-ribbon-divider {
  width: 1px;
  height: 18px;
  background: var(--border-color);
  margin: 0 0.3rem;
}

[data-theme="clean-light"] .dt-md-editor-ribbon {
  background: #f1f5f9;
  border-bottom-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-ribbon-btn {
  color: #475569;
}

[data-theme="clean-light"] .dt-ribbon-btn:hover {
  background: #e0f2fe;
  color: #0284c7;
  border-color: #bae6fd;
}

/* Fullscreen Reader Mode Modal */
.dt-md-reader-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 9999999;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.dt-md-reader-overlay.open {
  display: flex;
}

.dt-md-reader-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.75rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.dt-md-reader-body {
  flex: 1;
  overflow-y: auto;
  padding: 2.5rem 1.5rem 4rem;
}

.dt-md-reader-content {
  max-width: 920px;
  margin: 0 auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

[data-theme="clean-light"] .dt-md-reader-overlay {
  background: #f8fafc;
}

[data-theme="clean-light"] .dt-md-reader-bar {
  background: #ffffff;
  border-bottom-color: #cbd5e1;
}

[data-theme="clean-light"] .dt-md-reader-content {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}
/* ==========================================================================
   VS Code-Style Floating Command Palette & Action Launcher
   ========================================================================== */
.nav-cp-btn:hover {
  background: var(--bg-hover) !important;
  color: var(--accent-cyan) !important;
  border-color: var(--accent-cyan) !important;
}

.dt-command-palette-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 99999999;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 4rem 1.25rem 2rem;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.dt-command-palette-backdrop.open {
  display: flex;
  opacity: 1;
}

.dt-command-palette-card {
  width: 100%;
  max-width: 660px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(56, 189, 248, 0.2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: translateY(-10px) scale(0.98);
  transition: transform 0.15s ease;
}

.dt-command-palette-backdrop.open .dt-command-palette-card {
  transform: translateY(0) scale(1);
}

.dt-cp-input-wrap {
  display: flex;
  align-items: center;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
  gap: 0.75rem;
}

.dt-cp-prompt {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--accent-cyan);
  user-select: none;
}

.dt-cp-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-primary);
}

.dt-cp-input::placeholder {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.dt-cp-results {
  max-height: 380px;
  overflow-y: auto;
  padding: 0.4rem 0;
  display: flex;
  flex-direction: column;
}

.dt-cp-group-header {
  padding: 0.4rem 1.25rem 0.2rem;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.dt-cp-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 1.25rem;
  cursor: pointer;
  transition: background var(--transition-fast);
  color: var(--text-secondary);
  font-size: 0.86rem;
}

.dt-cp-item:hover,
.dt-cp-item.selected {
  background: rgba(56, 189, 248, 0.14);
  color: var(--text-primary);
}

.dt-cp-item.selected {
  border-left: 3px solid var(--accent-cyan);
  padding-left: calc(1.25rem - 3px);
}

.dt-cp-item-left {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dt-cp-item-icon {
  font-size: 1.05rem;
  width: 22px;
  text-align: center;
}

.dt-cp-item-title {
  font-weight: 600;
}

.dt-cp-item-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 0.4rem;
}

.dt-cp-item-badge {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.dt-cp-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1.25rem;
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

[data-theme="clean-light"] .dt-command-palette-card {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15), 0 0 0 1px rgba(2, 132, 199, 0.2);
}

[data-theme="clean-light"] .dt-cp-input-wrap {
  background: #f8fafc;
  border-bottom-color: #e2e8f0;
}

[data-theme="clean-light"] .dt-cp-item:hover,
[data-theme="clean-light"] .dt-cp-item.selected {
  background: #e0f2fe;
  color: #0f172a;
}

[data-theme="clean-light"] .dt-cp-footer {
  background: #f8fafc;
  border-top-color: #e2e8f0;
}

.dt-titlebar-sep {
  display: inline-block;
  width: 1px;
  height: 18px;
  background: var(--border-color);
  margin: 0 0.25rem;
  opacity: 0.6;
}

.dt-app-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
  padding: 0 0.85rem;
  overflow-x: auto;
  overflow-y: hidden;
}

.dt-titlebar-right {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

[data-theme="clean-light"] .dt-titlebar-sep {
  background: #cbd5e1;
}

/* ==========================================================================
   Cohesive Dropdown Styling (.dt-select & .theme-switch-wrapper)
   ========================================================================== */
.theme-switch-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 2px 6px;
  transition: all var(--transition-fast);
}

.theme-switch-wrapper:hover {
  border-color: var(--accent-cyan);
  background: rgba(56, 189, 248, 0.1);
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

.theme-switch-wrapper .dt-theme-select,
.theme-switch-wrapper .nav-theme-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  border: none !important;
  background-color: transparent !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%2338bdf8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.35rem center;
  background-size: 10px 10px;
  box-shadow: none !important;
  color: var(--text-primary);
  padding: 0.2rem 1.35rem 0.2rem 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  max-width: 145px;
  cursor: pointer;
  outline: none;
}

[data-theme="clean-light"] .theme-switch-wrapper {
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
}

[data-theme="clean-light"] .theme-switch-wrapper:hover {
  border-color: #0284c7;
  background: #f8fafc;
  box-shadow: 0 0 8px rgba(2, 132, 199, 0.15);
}

[data-theme="clean-light"] .theme-switch-wrapper .dt-theme-select,
[data-theme="clean-light"] .theme-switch-wrapper .nav-theme-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%230284c7' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  color: #0f172a;
}

/* ==========================================================================
   Tool Pinning, Favorites, Permalinks & SVG Studio Enhancements
   ========================================================================== */
.dt-tool-pin-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 3px 9px;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-left: 0.65rem;
  vertical-align: middle;
}
.dt-tool-pin-btn:hover {
  color: #f59e0b;
  border-color: #f59e0b;
}
.dt-tool-pin-btn.pinned {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border-color: #f59e0b;
}

.dt-pin-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  opacity: 0.4;
  font-size: 0.95rem;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  transition: all var(--transition-fast);
  margin-left: auto;
}
.dt-nav-item:hover .dt-pin-btn {
  opacity: 0.85;
}
.dt-pin-btn.pinned {
  color: #f59e0b !important;
  opacity: 1 !important;
}
.dt-pin-btn:hover {
  color: #f59e0b;
  transform: scale(1.2);
}

.dt-svg-checkerboard {
  background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.08) 25%, transparent 25%),
                    linear-gradient(-45deg, rgba(255, 255, 255, 0.08) 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.08) 75%),
                    linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.08) 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

.dt-cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
}
.dt-cert-badge-valid {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid var(--accent-emerald);
}
.dt-cert-badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
}
.dt-cert-badge-expired {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid var(--accent-rose);
}

.dt-global-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-tertiary, #1e293b);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 9999999;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.dt-global-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}