/* ==========================================================================
   DKP Transcribe Studio — Visual System (DESIGN.md + Operate/Read Craft)
   ========================================================================== */

:root,
:root[data-theme="light"] {
  --bg-canvas: #F6F7F9;
  --bg-surface: #FFFFFF;
  --bg-subtle: #EEF1F5;
  --bg-elevated: #FFFFFF;
  --border-subtle: #DCE2EA;
  --border-strong: #B8C4D4;

  --text-primary: #111827;
  --text-secondary: #3E4C5E;
  --text-muted: #526071;

  --accent-primary: #0F3D6E;
  --accent-hover: #0A2B4E;
  --accent-on-primary: #FFFFFF;
  --accent-soft: #E6EFF8;
  --accent-soft-fg: #0B2E54;

  --karaoke-active-bg: #FDE68A;
  --karaoke-active-track: #FEF9C3;
  --karaoke-active-fg: #111827;
  --karaoke-spoken-fg: #0F172A;
  --karaoke-upcoming-fg: #475569;

  --status-ok-fg: #14532D;
  --status-ok-bg: #DCFCE7;
  --status-ok-border: #86EFAC;

  --status-warn-fg: #78350F;
  --status-warn-bg: #FEF3C7;
  --status-warn-border: #FCD34D;

  --status-danger-fg: #7F1D1D;
  --status-danger-bg: #FEE2E2;
  --status-danger-border: #FCA5A5;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 6px 18px rgba(15, 23, 42, 0.09), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-popover: 0 12px 28px rgba(15, 23, 42, 0.16), 0 2px 6px rgba(15, 23, 42, 0.08);

  --selection-bg: #CFE2F7;
  --selection-fg: #0B1F38;
  --scrollbar-thumb: #B8C4D4;
  --scrollbar-track: #EEF1F5;
}

:root[data-theme="dark"] {
  --bg-canvas: #0D1117;
  --bg-surface: #161B22;
  --bg-subtle: #1F2733;
  --bg-elevated: #1C2330;
  --border-subtle: #2B3544;
  --border-strong: #3E4C63;

  --text-primary: #F1F5F9;
  --text-secondary: #B4C2D4;
  --text-muted: #93A3B8;

  --accent-primary: #4C9AFF;
  --accent-hover: #73B0FF;
  --accent-on-primary: #071324;
  --accent-soft: #172B4D;
  --accent-soft-fg: #BFDBFE;

  --karaoke-active-bg: #F59E0B;
  --karaoke-active-track: #E2E8F0;
  --karaoke-active-fg: #0B0F17;
  --karaoke-spoken-fg: #F8FAFC;
  --karaoke-upcoming-fg: #94A3B8;

  --status-ok-fg: #86EFAC;
  --status-ok-bg: #0F291E;
  --status-ok-border: #166534;

  --status-warn-fg: #FCD34D;
  --status-warn-bg: #2B1F0E;
  --status-warn-border: #92400E;

  --status-danger-fg: #FCA5A5;
  --status-danger-bg: #2D1418;
  --status-danger-border: #991B1B;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 22px rgba(0, 0, 0, 0.45), 0 2px 5px rgba(0, 0, 0, 0.3);
  --shadow-popover: 0 14px 32px rgba(0, 0, 0, 0.62), 0 2px 8px rgba(0, 0, 0, 0.4);

  --selection-bg: #1E3A5F;
  --selection-fg: #F8FAFC;
  --scrollbar-thumb: #3E4C63;
  --scrollbar-track: #161B22;
}

/* Browser Surfaces & Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

::selection {
  background-color: var(--selection-bg);
  color: var(--selection-fg);
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
  scrollbar-width: thin;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: "PT Root UI", "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  line-height: 1.5;
  caret-color: var(--accent-primary);
  overflow-x: clip;
}

a {
  color: var(--accent-primary);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent-hover);
}

:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.num-tab {
  font-variant-numeric: tabular-nums;
}

.mono-text,
.mono-code,
.mono-input {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.8125rem;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 999;
  padding: 8px 14px;
  background: var(--accent-primary);
  color: var(--accent-on-primary);
  border-radius: 6px;
  font-weight: 600;
}

.skip-link:hover,
.skip-link:focus {
  color: var(--accent-on-primary);
  background: var(--accent-hover);
}

.skip-link:focus {
  left: 12px;
}

/* ==========================================================================
   Top Navigation Header
   ========================================================================== */

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.topbar-inner {
  max-width: 1440px;
  margin: 0 auto;
  height: 56px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-titles {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}

.brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  white-space: nowrap;
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-tab {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  transition: background-color 150ms ease-out, color 150ms ease-out, border-color 150ms ease-out;
  white-space: nowrap;
}

.nav-tab:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
}

.nav-tab.is-active {
  background-color: var(--accent-soft);
  color: var(--accent-soft-fg);
  border-color: var(--border-subtle);
  font-weight: 600;
}

.nav-count {
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  padding: 1px 6px;
  border-radius: 10px;
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.nav-count.is-warn {
  background: var(--status-warn-bg);
  color: var(--status-warn-fg);
  border: 1px solid var(--status-warn-border);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.user-pill {
  appearance: none;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  color: var(--text-primary);
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  max-width: 210px;
}

.user-pill:hover {
  border-color: var(--border-strong);
}

.user-pill-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.status-dot.is-ok {
  background: #16A34A;
}

.status-dot.is-warn {
  background: #D97706;
}

.status-dot.is-danger {
  background: #DC2626;
}

.icon-btn {
  appearance: none;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 150ms ease-out, color 150ms ease-out;
}

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

:root[data-theme="light"] .icon-sun {
  display: none;
}

:root[data-theme="dark"] .icon-moon {
  display: none;
}

/* ==========================================================================
   Main Workspace & Common Surfaces
   ========================================================================== */

.workspace {
  max-width: 1440px;
  margin: 0 auto;
  padding: 16px 20px 100px;
}

body.dock-hidden .workspace {
  padding-bottom: 32px;
}

.global-banner {
  margin-bottom: 14px;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--accent-soft);
  color: var(--accent-soft-fg);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.global-banner.is-error {
  background: var(--status-danger-bg);
  color: var(--status-danger-fg);
  border-color: var(--status-danger-border);
}

.global-banner.is-ok {
  background: var(--status-ok-bg);
  color: var(--status-ok-fg);
  border-color: var(--status-ok-border);
}

.view-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
  min-width: 0;
}

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

.panel-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  text-wrap: balance;
}

.panel-subtext {
  margin: 3px 0 0;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.section-top-bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.page-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-wrap: balance;
}

.page-subtitle {
  margin: 4px 0 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  max-width: 72ch;
}

.subsection-title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 650;
  color: var(--text-primary);
}

.section-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.section-copy {
  margin: 0 0 12px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-width: 70ch;
}

/* Form Controls & Buttons */

.field-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.field-label-inline {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.field-hint {
  margin: 6px 0 0;
  font-size: 0.76rem;
  color: var(--text-muted);
}

.text-input,
.select-input,
.textarea-input {
  width: 100%;
  min-width: 0;
  font: inherit;
  font-size: 0.875rem;
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 8px 11px;
  transition: border-color 150ms ease-out, box-shadow 150ms ease-out;
}

.text-input::placeholder,
.textarea-input::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

.text-input:focus,
.select-input:focus,
.textarea-input:focus {
  border-color: var(--accent-primary);
}

.textarea-input {
  resize: vertical;
  min-height: 92px;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 6px;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 150ms ease-out, border-color 150ms ease-out, color 150ms ease-out;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-sm {
  font-size: 0.78rem;
  padding: 5px 10px;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--accent-on-primary);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

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

.btn-secondary:hover:not(:disabled) {
  border-color: var(--border-strong);
}

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

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.btn-danger-soft {
  background: var(--status-danger-bg);
  color: var(--status-danger-fg);
  border-color: var(--status-danger-border);
}

.btn-ok-soft {
  background: var(--status-ok-bg);
  color: var(--status-ok-fg);
  border-color: var(--status-ok-border);
}

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

/* Segmented & Pill Controls */

.segmented-control,
.filter-pills {
  display: inline-flex;
  align-items: center;
  background: var(--bg-subtle);
  padding: 2px;
  border-radius: 7px;
  border: 1px solid var(--border-subtle);
  gap: 2px;
}

.seg-btn,
.pill-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 5px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.seg-btn.is-active,
.pill-btn.is-active {
  background: var(--bg-surface);
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.inline-counter {
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  padding: 0 5px;
  border-radius: 8px;
  background: var(--bg-subtle);
  color: var(--text-secondary);
}

/* ==========================================================================
   Section 1: Studio 2-Pane Split Layout
   ========================================================================== */

.mobile-studio-switcher {
  display: none;
}

.studio-grid {
  display: grid;
  grid-template-columns: 368px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.studio-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.intake-form {
  padding: 14px 16px 10px;
}

.url-input-row {
  display: flex;
  gap: 8px;
}

.intake-options-row {
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.cache-flash-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
  background: var(--status-ok-bg);
  color: var(--status-ok-fg);
  border: 1px solid var(--status-ok-border);
  font-variant-numeric: tabular-nums;
}

.upload-dropzone {
  margin: 4px 16px 14px;
  padding: 11px 12px;
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  background: var(--bg-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: border-color 150ms ease-out, background-color 150ms ease-out;
}

.upload-dropzone:hover,
.upload-dropzone.is-dragover {
  border-color: var(--accent-primary);
  background: var(--accent-soft);
  color: var(--accent-soft-fg);
}

.dropzone-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.dropzone-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.dropzone-meta {
  font-size: 0.73rem;
  color: var(--text-muted);
}

.upload-progress-wrap {
  padding: 0 16px 14px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.progress-track {
  height: 6px;
  background: var(--bg-subtle);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent-primary);
  border-radius: 999px;
  transition: width 200ms ease-out;
}

/* Queue & Materials List */

.jobs-list,
.artifacts-list {
  display: flex;
  flex-direction: column;
}

.job-row,
.artifact-row {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.artifact-row {
  cursor: pointer;
  transition: background-color 140ms ease-out;
}

.artifact-row:hover {
  background-color: var(--bg-subtle);
}

.artifact-row.is-selected {
  background-color: var(--accent-soft);
}

.artifact-row:last-child,
.job-row:last-child {
  border-bottom: 0;
}

.row-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.row-title {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.row-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.prio-badge,
.meta-tag,
.durability-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.71rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 5px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.prio-p0 {
  background: var(--status-danger-bg);
  color: var(--status-danger-fg);
  border-color: var(--status-danger-border);
}

.prio-p1 {
  background: var(--accent-soft);
  color: var(--accent-soft-fg);
}

.prio-p2 {
  background: var(--bg-subtle);
  color: var(--text-secondary);
}

.prio-p3 {
  background: var(--bg-subtle);
  color: var(--text-muted);
}

.prio-fast {
  background: var(--status-warn-bg);
  color: var(--status-warn-fg);
  border-color: var(--status-warn-border);
}

/* ==========================================================================
   Right Pane: Open Artifact & Karaoke Canvas
   ========================================================================== */

.studio-main {
  display: flex;
  flex-direction: column;
}

.artifact-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.artifact-badges-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.artifact-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  text-wrap: balance;
}

.artifact-submeta {
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

/* Sub-Tabs */

.subtabs-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  overflow-x: auto;
  scrollbar-width: none;
}

.subtabs-bar::-webkit-scrollbar {
  display: none;
}

.subtab-btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

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

.subtab-btn.is-active {
  background: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-subtle);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.subtab-pane {
  padding: 16px 20px 24px;
}

/* Karaoke Toolbar & Segments */

.karaoke-toolbar {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

.toolbar-search {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
}

.toolbar-search.is-wide {
  flex: 1;
}

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

.text-input.has-icon {
  padding-left: 33px;
  padding-right: 54px;
}

.search-match-count {
  position: absolute;
  right: 8px;
  font-size: 0.73rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent-soft-fg);
}

.btn-word-fix[aria-pressed="true"] {
  background: var(--status-warn-bg);
  color: var(--status-warn-fg);
  border-color: var(--status-warn-border);
}

.karaoke-hint-bar {
  padding: 8px 12px;
  margin-bottom: 14px;
  border-radius: 6px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  font-size: 0.79rem;
  color: var(--text-secondary);
}

.karaoke-segments {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.k-segment {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.k-segment:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.k-seg-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.timecode-pill {
  appearance: none;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  color: var(--accent-primary);
  font: inherit;
  font-size: 0.76rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  padding: 2px 7px;
  border-radius: 5px;
  cursor: pointer;
}

.timecode-pill:hover {
  background: var(--accent-soft);
  border-color: var(--accent-primary);
}

.speaker-tag {
  font-size: 0.8rem;
  font-weight: 650;
  color: var(--text-primary);
}

.speaker-tag.is-question {
  color: var(--status-warn-fg);
  background: var(--status-warn-bg);
  border: 1px solid var(--status-warn-border);
  padding: 1px 7px;
  border-radius: 5px;
  font-size: 0.75rem;
}

.k-seg-body {
  margin: 0;
  font-size: 1rem;
  line-height: 1.68;
  max-width: 72ch;
  color: var(--karaoke-upcoming-fg);
}

.k-word {
  display: inline;
  padding: 1px 2px;
  border-radius: 4px;
  color: var(--karaoke-upcoming-fg);
  cursor: pointer;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  transition: color 100ms ease-out;
}

.k-word:hover {
  background-color: var(--accent-soft);
  color: var(--text-primary);
}

.k-word.spoken {
  color: var(--karaoke-spoken-fg);
}

.k-word.is-active {
  color: var(--karaoke-active-fg);
  font-weight: 600;
  background-color: var(--karaoke-active-track);
  background-image: linear-gradient(90deg, var(--karaoke-active-bg) var(--word-fill, 0%), transparent var(--word-fill, 0%));
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.14);
}

.k-word.is-fixed {
  text-decoration: underline dotted var(--accent-primary);
  text-underline-offset: 3px;
}

.k-word.is-match {
  background-color: var(--status-warn-bg);
  color: var(--status-warn-fg);
  outline: 1px solid var(--status-warn-border);
}

.word-fix-mode-on .k-word:hover {
  outline: 1px dashed var(--status-warn-fg);
  background-color: var(--status-warn-bg);
  color: var(--status-warn-fg);
}

/* ==========================================================================
   Subtab 2: DKP Digest, Numerical Facts & Public CBR Grounding
   ========================================================================== */

.digest-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.digest-block {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.digest-block:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.digest-prose {
  font-size: 0.95rem;
  line-height: 1.66;
  color: var(--text-primary);
  max-width: 72ch;
}

.digest-prose p {
  margin: 0 0 10px;
}

.digest-prose p:last-child {
  margin-bottom: 0;
}

.signals-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 74ch;
}

.signal-item {
  padding: 10px 12px;
  border-radius: 7px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.88rem;
}

.grounding-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.grounding-row {
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Data Tables */

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

.data-table th {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.77rem;
  white-space: nowrap;
}

.data-table tr:last-child td {
  border-bottom: 0;
}

.data-table td.num-col {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  white-space: nowrap;
}

/* ==========================================================================
   Subtab 3: Q&A Cards
   ========================================================================== */

.qa-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.qa-row {
  padding: 14px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: var(--bg-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.qa-question-box,
.qa-answer-box {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.qa-answer-box {
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
}

.qa-label-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.qa-role-tag {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.qa-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.58;
  color: var(--text-primary);
  max-width: 72ch;
}

/* ==========================================================================
   Subtab 4: Export (8 Formats), Share, Email & Agent Card
   ========================================================================== */

.export-layout {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.export-section {
  padding: 16px;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: var(--bg-subtle);
}

.formats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.format-btn {
  appearance: none;
  text-align: left;
  padding: 10px 12px;
  border-radius: 7px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 3px;
  transition: border-color 150ms ease-out, box-shadow 150ms ease-out;
}

.format-btn:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

.format-ext {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.format-desc {
  font-size: 0.76rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

.export-split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checkbox-fieldset {
  border: 0;
  margin: 0;
  padding: 0;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.check-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.83rem;
  color: var(--text-primary);
  cursor: pointer;
}

.check-item input[type="checkbox"] {
  accent-color: var(--accent-primary);
  width: 15px;
  height: 15px;
}

.code-copy-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 7px 10px;
}

.mono-code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  color: var(--text-primary);
}

.status-note {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--status-ok-fg);
}

/* ==========================================================================
   Section 2: Public CBR KB & Agenda
   ========================================================================== */

.security-contour-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: 7px;
  background: var(--status-ok-bg);
  color: var(--status-ok-fg);
  border: 1px solid var(--status-ok-border);
  font-size: 0.8rem;
  font-weight: 600;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
}

.stat-cell {
  padding: 12px 16px;
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-cell:last-child {
  border-right: 0;
}

.stat-label {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.stat-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.agenda-content {
  padding: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 18px;
}

.kb-filters-form {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.kb-search-row {
  display: flex;
  gap: 10px;
}

.kb-selects-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.sector-chips-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.sector-chip {
  appearance: none;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.76rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 140ms ease-out, color 140ms ease-out, border-color 140ms ease-out;
}

.sector-chip:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.sector-chip.is-active,
.sector-chip.is-active:hover {
  background: var(--accent-primary);
  color: var(--accent-on-primary);
  border-color: var(--accent-primary);
  font-weight: 600;
}

.kb-results-list {
  display: flex;
  flex-direction: column;
}

.kb-unit-row {
  padding: 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kb-unit-row:last-child {
  border-bottom: 0;
}

.kb-unit-title {
  margin: 0;
  font-size: 0.96rem;
  font-weight: 650;
  color: var(--text-primary);
}

.kb-unit-body {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.62;
  color: var(--text-primary);
  max-width: 74ch;
}

.kb-tags-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.dur-invariant {
  background: var(--accent-soft);
  color: var(--accent-soft-fg);
}

.dur-regime {
  background: var(--status-ok-bg);
  color: var(--status-ok-fg);
  border-color: var(--status-ok-border);
}

.dur-conjunctural {
  background: var(--status-warn-bg);
  color: var(--status-warn-fg);
  border-color: var(--status-warn-border);
}

.graph-evolution-box {
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 7px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  font-size: 0.82rem;
}

.graph-links-list {
  margin: 6px 0 0;
  padding-left: 18px;
  color: var(--text-secondary);
}

/* ==========================================================================
   Section 3, 4, 5: Glossary, Feedback, Admin Cluster
   ========================================================================== */

.glossary-grid,
.feedback-grid,
.admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.trainer-form {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.wer-summary-band {
  padding: 14px 16px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.wer-arrow-metric {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-variant-numeric: tabular-nums;
}

.wer-old {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--status-danger-fg);
  text-decoration: line-through;
}

.wer-new {
  font-size: 1.35rem;
  font-weight: 750;
  color: var(--status-ok-fg);
}

.suggestions-list,
.feedback-list,
.pending-users-list {
  display: flex;
  flex-direction: column;
}

.suggestion-row,
.feedback-row,
.pending-user-row {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.suggestion-row:last-child,
.feedback-row:last-child,
.pending-user-row:last-child {
  border-bottom: 0;
}

.pair-diff {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.88rem;
  font-weight: 600;
}

.pair-wrong {
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--status-danger-bg);
  color: var(--status-danger-fg);
}

.pair-right {
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--status-ok-bg);
  color: var(--status-ok-fg);
}

.rule-add-bar {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) 210px auto;
  gap: 10px;
  align-items: end;
}

#section-feedback .form-stack,
#section-admin .form-stack {
  padding: 14px 16px;
}

.guard-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.guard-badge.is-can-touch {
  background: var(--status-ok-bg);
  color: var(--status-ok-fg);
  border: 1px solid var(--status-ok-border);
}

.guard-badge.is-do-not-touch {
  background: var(--status-warn-bg);
  color: var(--status-warn-fg);
  border: 1px solid var(--status-warn-border);
}

.route-banner {
  padding: 10px 16px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.83rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Inline Word Fix Popover & Auth Dialog
   ========================================================================== */

.word-fix-popover {
  position: fixed;
  z-index: 90;
  width: 300px;
  max-width: calc(100vw - 24px);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  box-shadow: var(--shadow-popover);
  padding: 12px 14px;
}

.popover-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.popover-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.popover-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.popover-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.popover-current-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
}

.popover-muted {
  color: var(--text-muted);
}

.current-word-token {
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--bg-subtle);
  color: var(--text-primary);
  font-weight: 600;
}

.quick-replacements {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

.quick-chip {
  appearance: none;
  border: 1px solid var(--border-subtle);
  background: var(--accent-soft);
  color: var(--accent-soft-fg);
  font: inherit;
  font-size: 0.74rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  cursor: pointer;
}

.popover-check {
  font-size: 0.78rem;
}

.popover-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  margin-top: 2px;
}

.auth-dialog {
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 16px;
  width: min(420px, calc(100vw - 24px));
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-popover);
}

.auth-dialog::backdrop {
  background: rgba(15, 23, 42, 0.45);
}

.auth-dialog-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-dialog-body .panel-header {
  padding: 0 0 12px;
}

.auth-summary-box {
  padding: 10px 12px;
  border-radius: 7px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  font-size: 0.83rem;
}

/* ==========================================================================
   Sticky Bottom Audio Dock & Mobile Bottom Tab Bar
   ========================================================================== */

.audio-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-strong);
  box-shadow: var(--shadow-md);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.audio-dock-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 8px 20px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
}

.dock-transport {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dock-btn {
  appearance: none;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  color: var(--text-primary);
  font: inherit;
  font-size: 0.76rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  height: 36px;
  padding: 0 9px;
  border-radius: 6px;
  cursor: pointer;
}

.dock-btn:hover {
  border-color: var(--border-strong);
}

.dock-play-btn {
  appearance: none;
  border: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: var(--accent-on-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.dock-play-btn:hover {
  background: var(--accent-hover);
}

.dock-timeline {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.dock-time-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.76rem;
}

.dock-now-word {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dock-timecode {
  color: var(--text-primary);
  font-weight: 600;
  flex-shrink: 0;
}

.time-sep {
  color: var(--text-muted);
  margin: 0 2px;
}

.seek-slider {
  width: 100%;
  height: 6px;
  accent-color: var(--accent-primary);
  cursor: pointer;
  margin: 0;
}

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

.dock-speed-select {
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  color: var(--text-primary);
  cursor: pointer;
}

.dock-toggle,
.dock-share-btn {
  appearance: none;
  border: 1px solid var(--border-subtle);
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  height: 34px;
  padding: 0 10px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.dock-toggle.is-active {
  background: var(--accent-soft);
  color: var(--accent-soft-fg);
  border-color: var(--accent-primary);
}

.dock-share-btn {
  color: var(--text-primary);
}

.mobile-bottom-nav {
  display: none;
}

.empty-state {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ==========================================================================
   Responsive Breakpoints (Tablet & 390x844 Mobile Telegram Mini App)
   ========================================================================== */

@media (max-width: 1120px) {
  .kb-selects-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .formats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .rule-add-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 959px) {
  .desktop-nav {
    display: none;
  }

  .topbar-inner {
    height: 50px;
    padding: 0 12px;
  }

  .brand-sub {
    display: none;
  }

  .user-pill {
    max-width: 152px;
    padding: 4px 8px;
    font-size: 0.76rem;
  }

  .workspace {
    padding: 10px 12px calc(158px + env(safe-area-inset-bottom, 0px));
  }

  body.dock-hidden .workspace {
    padding-bottom: calc(74px + env(safe-area-inset-bottom, 0px));
  }

  .mobile-studio-switcher {
    display: flex;
    width: 100%;
    background: var(--bg-subtle);
    padding: 3px;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
  }

  .mobile-studio-switcher .seg-btn {
    flex: 1;
    justify-content: center;
    padding: 6px 8px;
    font-size: 0.8125rem;
  }

  .studio-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .studio-grid[data-mob-active="player"] .studio-sidebar {
    display: none;
  }

  .studio-grid[data-mob-active="intake"] .studio-main {
    display: none;
  }

  .artifact-header {
    padding: 12px 14px 10px;
  }

  .artifact-title {
    font-size: 1.02rem;
  }

  .subtab-pane {
    padding: 12px 14px 18px;
  }

  .karaoke-toolbar {
    grid-template-columns: 1fr auto;
  }

  .karaoke-toolbar .toolbar-search {
    grid-column: 1 / -1;
    order: 3;
  }

  .export-split-grid,
  .glossary-grid,
  .feedback-grid,
  .admin-grid,
  .agenda-content,
  .form-grid-2,
  .rule-add-bar {
    grid-template-columns: minmax(0, 1fr);
  }

  .stats-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat-cell:nth-child(2) {
    border-right: 0;
  }

  .stat-cell:nth-child(1),
  .stat-cell:nth-child(2) {
    border-bottom: 1px solid var(--border-subtle);
  }

  .kb-selects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kb-selects-grid .form-field:last-child {
    grid-column: 1 / -1;
  }

  .kb-search-row {
    flex-direction: column;
  }

  .formats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  /* Sticky Audio Dock sits cleanly above Mobile Bottom Nav */
  .audio-dock {
    bottom: calc(56px + env(safe-area-inset-bottom, 0px));
    padding-bottom: 0;
  }

  .audio-dock-inner {
    padding: 7px 12px;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px 10px;
  }

  .dock-timeline {
    grid-column: 1 / -1;
    order: -1;
  }

  .dock-controls {
    justify-content: flex-end;
    gap: 5px;
  }

  .dock-share-label {
    display: none;
  }

  .dock-toggle {
    padding: 0 8px;
    font-size: 0.74rem;
  }

  /* Mobile Bottom Navigation */
  .mobile-bottom-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 65;
    height: calc(56px + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    display: grid;
    grid-template-columns: 1.24fr 0.88fr 0.88fr 1.02fr 0.98fr;
  }

  .mob-nav-btn {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--text-muted);
    font: inherit;
    font-size: 0.7rem;
    letter-spacing: -0.015em;
    font-weight: 500;
    padding: 5px 1px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    cursor: pointer;
    min-width: 0;
  }

  .mob-nav-btn span {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mob-nav-btn.is-active {
    color: var(--accent-primary);
    font-weight: 650;
  }
}

@media (max-width: 560px) {
  .code-copy-box {
    flex-direction: column;
    align-items: stretch;
  }

  .code-copy-box .mono-code {
    white-space: pre-wrap;
    word-break: break-all;
  }
}

@media (max-width: 400px) {
  .formats-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}