/* Tokens come from design-system.css loaded before this file */

/* Perkins-specific surface tokens */
:root {
  --surface: rgba(255, 255, 255, 0.96);
  --surface-strong: rgba(255, 255, 255, 0.98);
  --dot-bg: rgba(226, 232, 240, 0.9);
  --perkins-text-font-size: 16px;
  --perkins-heading-text-font-size: 22px;
  --perkins-heading-braille-font-size: 17px;
  --perkins-braille-font-size: 16px;
  --perkins-braille-letter-spacing: 0.08em;
  --accent: #2358d7;
  --focus-ring: #2358d7;
  --btn-secondary-bg: var(--btn-secondary-bg, #f1f5f9);
  --status-ok: var(--ok);
  --status-error: var(--danger);
}

.autosave-status {
  margin-top: 4px;
  min-height: 1.4em;
  color: var(--text-muted);
}

.autosave-status[data-save-state="pending"] {
  color: var(--warning, #b45309);
}

.autosave-status[data-save-state="synced"],
.autosave-status[data-save-state="local"] {
  color: var(--status-ok);
}

.autosave-status[data-save-state="error"] {
  color: var(--status-error);
}

:root[data-theme="dark"] {
  --surface: #050505;
  --surface-strong: #0a0a0a;
  --dot-bg: rgba(255, 255, 255, 0.08);
  --accent: #ffffff;
  --focus-ring: rgba(255, 255, 255, 0.78);
  --status-ok: var(--ok);
  --status-error: var(--danger);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  overflow-x: clip;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 14px;
  background: #f5f7fb;
  color: var(--text);
  line-height: 1.5;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 220;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font-family: var(--font-ui);
  font-size: 14px;
}

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

body.perkins-help-open {
  overflow: hidden;
}

.startup-splash {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 16% 12%, rgba(59, 91, 219, 0.12), transparent 42%),
    radial-gradient(circle at 82% 8%, rgba(37, 99, 235, 0.24), transparent 38%),
    rgba(2, 6, 23, 0.86);
  backdrop-filter: blur(8px);
}

#startupSplash.perkins-startup-skeleton {
  display: block;
  cursor: default;
}

#startupSplash.perkins-startup-skeleton.hidden {
  display: none;
}

#documentLoadingRegion {
  display: grid;
}

#documentLoadingRegion > .unified-output-display {
  grid-area: 1 / 1;
  min-width: 0;
}

#documentLoadingRegion:has(> #startupSplash:not(.hidden)) > #unifiedOutputDisplay {
  visibility: hidden;
}

.perkins-skeleton-document span {
  display: block;
  background: var(--panel-border);
  border-radius: 4px;
  animation: perkins-skeleton-pulse 2s ease-in-out infinite;
}

.perkins-skeleton-document {
  padding: 12px 40px;
}

.perkins-skeleton-document span {
  width: 88%;
  height: 16px;
  margin-bottom: 20px;
}

.perkins-skeleton-document .perkins-skeleton-heading {
  width: 42%;
  height: 28px;
  margin-bottom: 40px;
}

.perkins-skeleton-document span:nth-child(3) { width: 76%; }
.perkins-skeleton-document span:nth-child(4) { width: 62%; }
.perkins-skeleton-document span:nth-child(5) { width: 81%; }

.perkins-skeleton-status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@keyframes perkins-skeleton-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

@media (prefers-reduced-motion: reduce) {
  .perkins-skeleton-document span { animation: none; }
}

body.reduce-motion .perkins-skeleton-document span {
  animation: none;
}

@media (forced-colors: active) {
  .perkins-skeleton-document span {
    background: GrayText;
    forced-color-adjust: none;
    animation: none;
  }
}

.startup-splash-card {
  width: min(420px, calc(100vw - 36px));
  border-radius: 20px;
  border: 1px solid var(--panel-border);
  background: linear-gradient(170deg, rgba(15, 23, 42, 0.96), rgba(2, 6, 23, 0.9));
  padding: 28px 24px 24px;
  text-align: center;
  box-shadow: 0 24px 40px rgba(2, 6, 23, 0.6);
}

.startup-splash-logo {
  width: 54px;
  height: 54px;
  margin: 0 auto 14px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 4px;
  align-items: center;
  justify-items: center;
  background: var(--accent);
  border-radius: 12px;
  padding: 9px;
}

.startup-splash-logo .dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.4);
}

.startup-splash-logo .dot.on {
  background: #ffffff;
}

:root[data-theme="dark"] .startup-splash-logo,
:root[data-theme="dark"] .logo {
  background: #000000 !important;
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: none;
}

:root[data-theme="dark"] .startup-splash-logo .dot,
:root[data-theme="dark"] .logo .dot {
  background: rgba(255, 255, 255, 0.28);
}

:root[data-theme="dark"] .startup-splash-logo .dot.on,
:root[data-theme="dark"] .logo .dot.on {
  background: #ffffff;
}

.startup-splash-card h2 {
  margin: 0;
  font-size: clamp(26px, 4vw, 33px);
}

.startup-splash-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-family: var(--font-ui);
}

.auth-user-badge {
  max-width: 250px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: var(--panel-strong);
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

code {
  padding: 0.1rem 0.35rem;
  border-radius: 0.35rem;
  background: rgba(148, 163, 184, 0.2);
  font-family: var(--font-ui);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--topbar-bg);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: nowrap;
}

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

.logo {
  width: 42px;
  height: 42px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 4px;
  align-items: center;
  justify-items: center;
  background: var(--accent);
  padding: 8px;
  border-radius: 10px;
}

.logo .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
}

.logo .dot.on {
  background: #ffffff;
}

.title h1 {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 19px;
}

.title p {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 13px;
}

.app-body > main.app-shell {
  max-width: none;
  margin: 0;
  padding: 0;
}

.workspace {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
}

.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.workspace-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(170px, 1fr));
  gap: 10px;
  align-items: end;
  padding: 10px 16px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--surface-strong);
}

#perkinsPanel {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  padding: 0;
}

#perkinsPanelTitle,
#perkinsInputHint {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.dot-grid-wrap {
  margin: 12px 18px;
}

.perkins-ribbon {
  position: sticky;
  top: 0;
  z-index: 18;
  display: flex;
  gap: 0;
  margin: 0;
  padding: 10px 18px;
  overflow-x: auto;
  overflow-y: visible;
  border: 0;
  border-bottom: 1px solid var(--panel-border);
  border-radius: 0;
  background: var(--surface-strong);
  box-shadow: 0 5px 18px rgba(21, 33, 55, 0.05);
}

.perkins-ribbon-group {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  border-right: 1px solid var(--panel-border);
  flex: 0 0 auto;
}

.perkins-ribbon-group:first-child {
  padding-left: 0;
}

.perkins-ribbon-group:last-child {
  padding-right: 0;
  border-right: 0;
}

.perkins-tool-btn {
  appearance: none;
  min-height: 40px;
  min-width: 40px;
  max-width: 108px;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: #f8fafc;
  color: var(--text);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.1;
  padding: 6px 9px;
  white-space: nowrap;
}

.perkins-tool-btn:hover {
  border-color: var(--accent);
}

.perkins-tool-btn:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.perkins-tool-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.perkins-tool-btn.selected {
  background: #eaf0ff;
  border-color: var(--accent);
  color: var(--accent);
}

.perkins-tool-btn.glyph {
  font-size: 14px;
}

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

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

.field span {
  color: var(--muted);
  font-size: 12px;
  font-family: var(--font-ui);
}

select,
textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--panel-border);
  background: var(--input-bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  padding: 10px 12px;
}

textarea {
  resize: vertical;
}

#brailleBuffer {
  font-family: "Noto Sans Symbols 2", "Segoe UI Symbol", "DejaVu Sans", var(--font-body);
  font-size: var(--perkins-braille-font-size);
  letter-spacing: var(--perkins-braille-letter-spacing);
  line-height: 1.75;
  caret-color: var(--accent);
  height: 132px;
  min-height: 132px;
  max-height: 132px;
  overflow-y: auto;
  resize: none;
}

.workspace-input-strip {
  display: grid;
  grid-template-columns: minmax(112px, 0.18fr) minmax(180px, 1fr) auto;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  border: 0;
  border-bottom: 1px solid var(--panel-border);
  border-radius: 0;
  background: var(--surface-strong);
  padding: 10px 18px;
}

.workspace-strip-label,
.workspace-strip-meta,
.workspace-strip-preview {
  margin: 0;
}

.workspace-strip-label {
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 800;
}

.workspace-strip-meta {
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 11px;
}

.workspace-strip-preview {
  min-height: 30px;
  overflow: hidden;
  color: var(--text);
  font-family: "Noto Sans Symbols 2", "Segoe UI Symbol", "DejaVu Sans", var(--font-body);
  font-size: var(--perkins-braille-font-size);
  letter-spacing: var(--perkins-braille-letter-spacing);
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace-strip-preview[data-empty="true"] {
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 13px;
  letter-spacing: 0;
}

.workspace-strip-status {
  display: flex;
  flex-direction: column;
  align-items: end;
  gap: 4px;
  min-width: 108px;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  text-align: right;
}

.formatted-output-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.unified-output-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 0;
}

.unified-output-heading {
  display: none;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.unified-output-heading h3 {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.unified-output-mode {
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 12px;
  white-space: nowrap;
}

.unified-output-display {
  min-height: calc(100vh - 292px);
  max-height: none;
  overflow: auto;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: #ffffff;
  color: #162033;
  padding: 28px 40px;
}

:root[data-theme="dark"] .unified-output-display {
  background: #000000;
  color: #ffffff;
}

.unified-output-display[data-empty="true"] {
  display: block;
  color: var(--muted);
}

.unified-output-display[data-empty="false"] {
  display: block;
}

.unified-output-line {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0;
  min-height: 24px;
  width: min(100%, 1040px);
  margin: 0 auto;
  background: transparent;
  border-left: 0;
  border-right: 0;
  padding: 0 48px;
}

.unified-output-line.heading {
  min-height: 46px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.unified-output-line.heading:first-child {
  padding-top: 38px;
}

.unified-output-line.heading .unified-output-cell {
  min-width: 12px;
  min-height: calc(
    (var(--perkins-heading-text-font-size) * 1.25) +
      (var(--perkins-heading-braille-font-size) * 1.15)
  );
  grid-template-rows: calc(var(--perkins-heading-text-font-size) * 1.25) calc(
      var(--perkins-heading-braille-font-size) * 1.15
    );
  --unified-underline-y: calc(var(--perkins-heading-text-font-size) * 1.15);
}

.unified-output-line.heading .unified-output-text {
  font-size: var(--perkins-heading-text-font-size);
  font-weight: 700;
}

.unified-output-line.heading .unified-output-braille {
  font-size: var(--perkins-heading-braille-font-size);
}

.unified-output-line.list-item {
  padding-left: 58px;
}

.unified-output-list-marker {
  flex: 0 0 38px;
  min-height: calc(
    (var(--perkins-text-font-size) * 1.2) + (var(--perkins-braille-font-size) * 1.15)
  );
  display: inline-flex;
  align-items: flex-start;
  justify-content: flex-end;
  margin-right: 8px;
  color: inherit;
  font-family: var(--font-body);
  font-size: var(--perkins-text-font-size);
  font-weight: 700;
  line-height: 1.2;
  padding-top: 0;
  user-select: none;
}

.unified-output-line.align-center {
  justify-content: center;
}

.unified-output-line.align-right {
  justify-content: flex-end;
}

.unified-output-line.align-justify {
  justify-content: space-between;
}

.unified-output-line:first-child {
  border-top: 0;
  border-radius: 0;
  padding-top: 38px;
}

.unified-output-line.empty-document-line {
  min-height: calc(100vh - 382px);
  cursor: text;
}

.unified-output-line:last-child {
  min-height: calc(100vh - 382px);
  border-bottom: 0;
  border-radius: 0;
  padding-bottom: 38px;
  box-shadow: none;
}

.unified-output-cell {
  position: relative;
  display: inline-grid;
  grid-template-rows: calc(var(--perkins-text-font-size) * 1.35) calc(
      var(--perkins-braille-font-size) * 1.2
    );
  justify-items: center;
  align-items: center;
  width: max-content;
  min-width: 9px;
  min-height: calc(
    (var(--perkins-text-font-size) * 1.35) + (var(--perkins-braille-font-size) * 1.2)
  );
  padding: 0 1px;
  border-radius: 4px;
  --unified-underline-y: calc(var(--perkins-text-font-size) * 1.25);
}

.unified-output-cell.current {
  background: transparent;
}

.unified-output-cell.compressed-text-unit {
  min-width: max-content;
  padding-left: 0.08em;
  padding-right: 0.08em;
}

.unified-output-cell.compressed-text-unit .unified-output-text {
  letter-spacing: 0;
  word-spacing: normal;
  white-space: pre;
}

.unified-output-cell.compressed-text-unit .unified-output-braille {
  width: 100%;
  text-align: center;
}

.unified-output-cell.compressed-text-unit .unified-braille-cells {
  width: 100%;
  justify-content: center;
}

.unified-output-cell.selected {
  background: rgba(34, 197, 94, 0.26);
  box-shadow: inset 0 0 0 1px rgba(22, 163, 74, 0.5);
}

.unified-output-cell.selected .unified-output-text,
.unified-output-cell.selected .unified-output-braille {
  border-radius: 3px;
  background: rgba(34, 197, 94, 0.34);
}

.unified-output-cell.selected .unified-output-text {
  color: #14532d;
}

:root[data-theme="dark"] .unified-output-cell.selected {
  background: rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.65);
}

:root[data-theme="dark"] .unified-output-cell.selected .unified-output-text,
:root[data-theme="dark"] .unified-output-cell.selected .unified-output-braille {
  background: rgba(255, 255, 255, 0.22);
}

:root[data-theme="dark"] .unified-output-cell.selected .unified-output-text {
  color: #ffffff;
}

.unified-output-cell.mark-bold .unified-output-text {
  font-weight: 800;
}

.unified-output-cell.mark-italic .unified-output-text {
  font-style: italic;
}

.unified-output-cell.mark-underline .unified-output-text {
  text-decoration: none;
}

.unified-output-cell.mark-underline::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: var(--unified-underline-y);
  border-bottom: 2px solid currentColor;
  pointer-events: none;
}

.unified-output-cell.mark-underline.text-empty::after {
  display: none;
}

.unified-output-text {
  position: relative;
  display: inline-block;
  min-width: 0;
  min-height: 1.2em;
  color: inherit;
  font-family: var(--font-body);
  font-size: var(--perkins-text-font-size);
  line-height: 1.2;
}

.unified-output-braille {
  position: relative;
  display: inline-block;
  min-height: 1.15em;
  color: #4c6384;
  font-family: "Segoe UI Symbol", "Noto Sans Symbols", "Noto Sans Symbols 2", sans-serif;
  font-size: var(--perkins-braille-font-size);
  line-height: 1.15;
  letter-spacing: 0;
}

.unified-braille-cells {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.18em;
  min-height: 1.15em;
  vertical-align: middle;
}

.unified-braille-cell {
  display: grid;
  grid-template-columns: repeat(2, 0.28em);
  grid-template-rows: repeat(3, 0.28em);
  column-gap: 0.1em;
  row-gap: 0.04em;
  align-items: center;
  justify-items: center;
  width: 0.86em;
  min-width: 0.86em;
  height: 1.12em;
  padding: 0.07em 0.08em;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 0.18em;
  background: rgba(248, 250, 252, 0.38);
  box-sizing: border-box;
}

.unified-braille-dot {
  display: block;
  border-radius: 999px;
}

.unified-braille-dot.active {
  width: 0.22em;
  height: 0.22em;
  background: #253f66;
}

.unified-braille-dot.inactive {
  width: 0.12em;
  height: 0.12em;
  background: rgba(76, 99, 132, 0.32);
}

.unified-braille-literal {
  min-width: 0.4em;
}

:root[data-theme="dark"] .unified-output-braille {
  color: #d0d0d0;
}

:root[data-theme="dark"] .unified-braille-dot.active {
  background: #ffffff;
}

:root[data-theme="dark"] .unified-braille-dot.inactive {
  background: rgba(255, 255, 255, 0.32);
}

:root[data-theme="dark"] .unified-braille-cell {
  border-color: rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.05);
}

.unified-output-cursor {
  position: absolute;
  right: -2px;
  width: 2px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: none;
  animation: unified-cursor-blink 1s steps(2, start) infinite;
}

.unified-output-text-cursor {
  top: 0;
  bottom: 0;
}

.unified-output-braille-cursor {
  top: 0;
  bottom: 0;
}

.unified-output-cell.end-cursor {
  min-width: 10px;
}

.unified-output-cell.start-cursor {
  min-width: 0;
  width: 0;
  padding-left: 0;
  padding-right: 0;
}

.unified-output-cell.start-cursor .unified-output-text,
.unified-output-cell.end-cursor .unified-output-text {
  min-width: 2px;
}

.unified-output-cell.start-cursor .unified-output-cursor {
  left: 0;
  right: auto;
}

@keyframes unified-cursor-blink {
  0%,
  45% {
    opacity: 1;
  }

  46%,
  100% {
    opacity: 0;
  }
}

.unified-output-display[data-view="text"] .unified-output-braille {
  display: none;
}

.unified-output-display[data-view="text"] .unified-output-cell {
  grid-template-rows: calc(var(--perkins-text-font-size) * 1.35);
  min-height: calc(var(--perkins-text-font-size) * 1.35);
  --unified-underline-y: calc(var(--perkins-text-font-size) * 1.25);
}

.unified-output-display[data-view="text"] .unified-output-line {
  min-height: calc(var(--perkins-text-font-size) * 1.35);
  padding-top: 0;
  padding-bottom: 0;
}

.unified-output-display[data-view="braille"] .unified-output-text {
  display: none;
}

.unified-output-display[data-view="braille"] .unified-output-cell {
  grid-template-rows: calc(var(--perkins-braille-font-size) * 1.25);
  min-height: calc(var(--perkins-braille-font-size) * 1.25);
}

.unified-output-display[data-view="braille"] .unified-output-cell.mark-underline::after {
  display: none;
}

.unified-output-display[data-view="braille"] .unified-output-line {
  min-height: calc(var(--perkins-braille-font-size) * 1.25);
  padding-top: 0;
  padding-bottom: 0;
}

.unified-output-display[data-view="braille"] .unified-output-list-marker {
  display: none;
}

.unified-output-display[data-view="text-braille"] .unified-output-line {
  min-height: calc(
    (var(--perkins-text-font-size) * 1.35) + (var(--perkins-braille-font-size) * 1.2)
  );
  padding-top: 0;
  padding-bottom: 0;
}

.unified-output-display[data-live="false"] .unified-output-cursor {
  display: none;
}

.workspace-status-footer {
  display: flex;
  flex-wrap: nowrap;
  gap: 12px;
  align-items: center;
  margin-top: 0;
  border-top: 1px solid var(--panel-border);
  background: var(--surface-strong);
  padding: 8px 18px;
  color: var(--muted);
  font-size: 12px;
}

.workspace-footer-chip {
  max-width: min(100%, 360px);
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  padding: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace-footer-chip:first-child,
.workspace-footer-chip:last-child {
  color: var(--text);
  font-weight: 800;
}

.workspace-footer-chip:nth-child(4) {
  flex: 1;
  min-width: 160px;
}

.workspace-footer-chip:nth-child(4)::after {
  content: "";
  display: block;
  height: 8px;
  margin-top: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) 42%, #dfe7f3 42%);
}

.legacy-workspace-control {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.workspace-footer-chip[data-save-state="pending"] {
  color: var(--warning, #b45309);
}

.workspace-footer-chip[data-save-state="synced"],
.workspace-footer-chip[data-save-state="local"] {
  color: var(--status-ok);
}

.workspace-footer-chip[data-save-state="error"] {
  color: var(--status-error);
}

.formatted-output-section h3 {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
}

.formatted-output-preview {
  width: 100%;
  min-height: 132px;
  max-height: 220px;
  overflow-y: auto;
  border-radius: 10px;
  border: 1px solid var(--panel-border);
  background: var(--input-bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.35;
  padding: 10px 12px;
}

.formatted-output-preview[data-empty="true"] {
  color: var(--muted);
}

.formatted-output-block {
  margin: 0 0 0.65rem;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.formatted-output-block:last-child {
  margin-bottom: 0;
}

.formatted-output-heading {
  color: var(--text);
  font-family: var(--font-ui);
  font-weight: 800;
  line-height: 1.2;
  margin-top: 6px;
  margin-bottom: 10px;
}

.formatted-output-heading-1 {
  font-size: 24px;
}

.formatted-output-heading-2 {
  font-size: 20px;
}

.formatted-output-heading-3 {
  font-size: 18px;
}

.formatted-output-paragraph {
  font-size: 16px;
  line-height: 1.35;
  margin-bottom: 0.45rem;
}

.formatted-output-paragraph-empty {
  min-height: 0.9rem;
  margin-bottom: 0.75rem;
}

.formatted-output-list {
  margin: 0 0 10px 1.25rem;
  padding-left: 1rem;
}

.formatted-output-list:last-child {
  margin-bottom: 0;
}

.formatted-output-list .formatted-output-block {
  margin-bottom: 3px;
}

.formatted-output-list .formatted-output-block:last-child {
  margin-bottom: 0;
}

.formatted-output-list-item {
  font-size: 16px;
  line-height: 1.3;
  padding-left: 0.15rem;
}

.formatted-output-align-left {
  text-align: left;
}

.formatted-output-align-center {
  text-align: center;
}

.formatted-output-align-right {
  text-align: right;
}

.formatted-output-align-justify {
  text-align: justify;
}

.formatted-output-placeholder {
  margin: 0;
}

.formatted-output-bold {
  font-weight: 700;
}

.formatted-output-italic {
  font-style: italic;
}

.formatted-output-underline {
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.formatted-output-selection {
  background: rgba(116, 217, 132, 0.32);
  border-radius: 3px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--panel-border);
  background: var(--input-bg);
  font-family: var(--font-ui);
  min-height: 45px;
}

.toggle input {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
}

.meta {
  margin: 10px 0 2px;
  color: var(--muted);
  font-size: 13px;
  font-family: var(--font-ui);
}

.status {
  margin: 0 0 6px;
  min-height: 20px;
  color: var(--status-ok);
  font-family: var(--font-ui);
}

.status.error {
  color: var(--status-error);
}

.autosave-status {
  margin-top: 4px;
  min-height: 1.4em;
  color: var(--muted);
}

.autosave-status[data-save-state="pending"] {
  color: var(--warning, #b45309);
}

.autosave-status[data-save-state="synced"],
.autosave-status[data-save-state="local"] {
  color: var(--status-ok);
}

.autosave-status[data-save-state="error"] {
  color: var(--status-error);
}

.subject-picker-dialog,
.recovery-prompt-dialog,
.assignment-dialog,
.saved-document-dialog {
  position: fixed;
  inset: 0;
  z-index: 232;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(15, 23, 42, 0.45);
}

.subject-picker-dialog.hidden,
.recovery-prompt-dialog.hidden,
.assignment-dialog.hidden,
.saved-document-dialog.hidden {
  display: none;
}

.recovery-prompt-dialog.hidden {
  display: none;
}

.subject-picker-card,
.recovery-prompt-card,
.assignment-dialog-card,
.saved-document-card {
  width: min(720px, calc(100vw - 24px));
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--surface-strong);
  box-shadow: var(--shadow-lg);
  padding: 16px;
}

.subject-picker-title,
.recovery-prompt-title,
.assignment-dialog-title,
.saved-document-title {
  margin: 0;
  color: var(--text);
  font-family: var(--font-ui);
}

.subject-picker-message,
.recovery-prompt-message,
.assignment-dialog-message,
.assignment-dialog-status,
.saved-document-message,
.saved-document-status {
  margin: 8px 0 0;
  color: var(--muted);
  font-family: var(--font-ui);
}

.subject-picker-options {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  max-height: min(50vh, 360px);
  overflow: auto;
  outline: none;
}

.subject-picker-option {
  appearance: none;
  width: 100%;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  min-height: 44px;
  padding: 10px 12px;
  text-align: left;
}

.subject-picker-option.active,
.subject-picker-option:focus-visible {
  border-color: var(--muted);
}

.subject-picker-option strong,
.subject-picker-option span {
  overflow-wrap: anywhere;
}

.recovery-prompt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}

.saved-document-head {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.assignment-dialog-head {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.assignment-dialog-close {
  align-items: center;
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  font-family: var(--font-ui);
  font-size: 22px;
  height: 36px;
  justify-content: center;
  line-height: 1;
  width: 36px;
}

.assignment-dialog-list {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  max-height: min(52vh, 360px);
  overflow: auto;
  outline: none;
}

.assignment-answer-pane {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.assignment-answer-pane.hidden {
  display: none;
}

.assignment-progress {
  color: var(--muted);
  font: 800 13px/1.3 var(--font-ui);
  margin: 0;
  text-transform: uppercase;
}

.assignment-question-title {
  color: var(--text);
  font-family: var(--font-ui);
  margin: 0;
}

.assignment-question-text,
.assignment-question-instructions {
  color: var(--text);
  font: 600 18px/1.45 var(--font-ui);
  margin: 0;
  white-space: pre-wrap;
}

.assignment-question-instructions {
  color: var(--muted);
  font-size: 15px;
}

.assignment-answer-field {
  color: var(--text);
  display: grid;
  font-family: var(--font-ui);
  font-weight: 800;
  gap: 8px;
}

.assignment-answer-editor {
  background: var(--surface);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  display: block;
  min-height: 160px;
  overflow: hidden;
  position: relative;
}

.assignment-answer-field textarea,
.assignment-answer-visual {
  font: 650 19px/1.45 var(--font-ui);
  min-height: 160px;
  padding: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}

.assignment-answer-field textarea {
  background: var(--surface);
  border: 0;
  caret-color: transparent;
  color: transparent;
  resize: vertical;
  text-shadow: none;
}

.assignment-answer-visual {
  color: var(--text);
  inset: 0;
  pointer-events: none;
  position: absolute;
}

.assignment-answer-caret {
  animation: assignmentCaretBlink 1s step-end infinite;
  border-left: 4px solid #2457e6;
  border-radius: 999px;
  display: inline-block;
  height: 1.35em;
  margin: 0 0 -0.2em -2px;
  vertical-align: text-bottom;
}

.assignment-answer-field:focus-within .assignment-answer-editor {
  border-color: var(--muted);
}

.assignment-answer-field textarea:focus {
  outline: none;
}

.assignment-answer-field.hidden {
  display: none;
}

.assignment-choice-list {
  display: grid;
  gap: 8px;
}

.assignment-choice-list.hidden {
  display: none;
}

.assignment-choice-option {
  background: var(--surface);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  color: var(--text);
  font: 650 17px/1.4 var(--font-ui);
  padding: 10px 14px;
}

.assignment-choice-option.focused {
  border-color: var(--muted);
}

.assignment-choice-option.selected {
  border-color: var(--muted);
  font-weight: 800;
}

.assignment-choice-option.selected::before {
  content: "\2713  ";
}

@keyframes assignmentCaretBlink {
  50% {
    opacity: 0;
  }
}

.assignment-dialog-option {
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  display: grid;
  gap: 4px;
  min-height: 56px;
  padding: 10px 12px;
  text-align: left;
}

.assignment-dialog-option.active,
.assignment-dialog-option:focus-visible {
  border-color: var(--muted);
}

.assignment-dialog-option strong,
.assignment-dialog-option span {
  overflow-wrap: anywhere;
}

.assignment-dialog-option span {
  color: var(--muted);
  font-size: 13px;
}

.assignment-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}

.saved-document-close {
  align-items: center;
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  font-family: var(--font-ui);
  font-size: 22px;
  height: 36px;
  justify-content: center;
  line-height: 1;
  width: 36px;
}

.saved-document-name-field {
  color: var(--text);
  display: grid;
  font-family: var(--font-ui);
  font-weight: 700;
  gap: 8px;
  margin-top: 16px;
}

.saved-document-name-field input {
  background: var(--surface);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  font: 600 18px/1.35 var(--font-ui);
  min-height: 46px;
  padding: 8px 12px;
}

.saved-document-list {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  max-height: min(52vh, 360px);
  overflow: auto;
  outline: none;
}

.saved-document-list:empty {
  display: none;
}

.saved-document-option {
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  display: grid;
  gap: 4px;
  min-height: 52px;
  padding: 10px 12px;
  text-align: left;
}

.saved-document-option.active,
.saved-document-option:focus-visible {
  border-color: var(--muted);
}

.saved-document-option strong,
.saved-document-option span {
  overflow-wrap: anywhere;
}

.saved-document-option span {
  color: var(--muted);
  font-size: 13px;
}

.saved-document-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}

.user-error-popup {
  position: fixed;
  z-index: 220;
  top: 16px;
  right: 16px;
  width: min(420px, calc(100vw - 24px));
  pointer-events: none;
}

.user-error-popup-card {
  pointer-events: auto;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--surface-strong);
  box-shadow: var(--shadow-lg);
  padding: 12px 12px 10px;
  display: grid;
  gap: 8px;
}

.user-error-popup-title {
  font-family: var(--font-ui);
  color: var(--danger);
}

.user-error-popup-message {
  margin: 0;
  color: var(--text);
  font-family: var(--font-ui);
}

.user-error-popup-close {
  justify-self: end;
}

.user-success-popup {
  position: fixed;
  z-index: 220;
  top: 16px;
  right: 16px;
  width: min(420px, calc(100vw - 24px));
  pointer-events: none;
}

.user-success-popup-card {
  pointer-events: auto;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--surface-strong);
  box-shadow: var(--shadow-lg);
  padding: 12px;
  display: grid;
  gap: 8px;
}

.user-success-popup-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-success-popup-icon {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  background: color-mix(in srgb, var(--ok) 18%, transparent);
  color: var(--ok);
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1;
  animation: submission-pop 280ms ease-out;
}

.user-success-popup-title {
  color: var(--ok);
  font-family: var(--font-ui);
}

.user-success-popup-message {
  margin: 0;
  color: var(--text);
  font-family: var(--font-ui);
}

.user-success-popup-close {
  justify-self: end;
}

.submission-confirm-dialog {
  position: fixed;
  inset: 0;
  z-index: 230;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(2, 6, 23, 0.55);
  backdrop-filter: blur(3px);
}

.submission-confirm-card {
  width: min(420px, calc(100vw - 24px));
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  background: var(--surface-strong);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  display: grid;
  gap: 10px;
}

.submission-confirm-title {
  margin: 0;
  font-family: var(--font-ui);
  color: var(--text);
}

.submission-confirm-message {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-ui);
}

.submission-confirm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.recovery-prompt-dialog {
  position: fixed;
  inset: 0;
  z-index: 232;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(2, 6, 23, 0.55);
  backdrop-filter: blur(3px);
}

.recovery-prompt-card {
  width: min(460px, calc(100vw - 24px));
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--surface-strong);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  display: grid;
  gap: 10px;
}

.recovery-prompt-title {
  margin: 0;
  font-family: var(--font-ui);
  color: var(--text);
}

.recovery-prompt-message {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-ui);
}

.recovery-prompt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.perkins-help-dialog {
  position: fixed;
  inset: 0;
  z-index: 235;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(2, 6, 23, 0.62);
  backdrop-filter: blur(3px);
}

.perkins-help-card {
  width: min(760px, calc(100vw - 20px));
  max-height: min(90vh, 860px);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  background: var(--surface-strong);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  gap: 12px;
  padding: 16px;
}

.perkins-help-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.perkins-help-eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.perkins-help-head h2 {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 20px;
}

.perkins-help-support {
  margin: 0;
  padding: 10px 12px;
  border: 1px dashed var(--panel-border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--surface) 86%, var(--accent) 14%);
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
}

.perkins-help-support-channels {
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--panel-border) 85%, transparent 15%);
  background: color-mix(in srgb, var(--surface) 91%, var(--accent) 9%);
  display: grid;
  gap: 8px;
}

.perkins-help-support-label {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.perkins-help-support-actions {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--accent) 46%, transparent 54%) transparent;
}

.perkins-help-support-actions::-webkit-scrollbar {
  height: 6px;
}

.perkins-help-support-actions::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--accent) 52%, transparent 48%);
  border-radius: 999px;
}

.perkins-help-support-action {
  flex: 1 1 0;
  min-width: 118px;
  min-height: 36px;
  padding: 7px 10px;
  border-radius: 8px;
  font-size: 12px;
  justify-content: center;
  text-align: center;
  white-space: nowrap;
}

.perkins-help-intro {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.perkins-help-content {
  overflow-y: auto;
  padding: 2px 4px 2px 0;
  display: grid;
  gap: 10px;
}

.perkins-help-section {
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--surface) 92%, var(--accent) 8%);
  padding: 10px 10px 8px;
}

.perkins-help-section h3 {
  margin: 0 0 6px;
  font-family: var(--font-ui);
  font-size: 14px;
}

.perkins-help-section ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 5px;
}

.perkins-help-section li {
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
}

.perkins-help-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

.perkins-help-section-actions {
  position: sticky;
  bottom: 0;
  background: color-mix(in srgb, var(--surface-strong) 92%, var(--accent) 8%);
  box-shadow: 0 -10px 18px rgba(15, 23, 42, 0.08);
}

.perkins-help-section-actions h3 {
  margin-bottom: 8px;
}

@keyframes submission-pop {
  0% {
    transform: scale(0.68);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.mode-tabs {
  margin-top: 10px;
  display: inline-flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tab {
  border: 1px solid var(--panel-border);
  border-radius: 9px;
  padding: 10px 12px;
  background: rgba(15, 23, 42, 0.78);
  color: var(--text);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 15px;
}

.tab.active {
  background: var(--accent);
  border-color: transparent;
}

.panel {
  margin-top: 12px;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--surface);
  padding: 14px;
}

.panel.hidden {
  display: none;
}

.panel h2 {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 18px;
}

.panel-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.hint {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.dot-grid-wrap {
  margin-top: 8px;
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  background: var(--surface-strong);
  padding: 8px 10px;
  display: inline-grid;
  gap: 4px;
  width: max-content;
  max-width: 100%;
  font-size: 12px;
}

.dot-grid-label {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-ui);
  font-size: 12px;
  line-height: 1.25;
}

.dot-grid {
  margin-top: 4px;
  width: 72px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 8px;
}

.dot-cell {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: var(--dot-bg);
}

.dot-cell.active {
  background: var(--accent);
  border-color: var(--accent);
}

#chordPreview {
  margin: 0;
  font-size: 12px;
  line-height: 1.25;
}

.action-row {
  margin: 10px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.export-row {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--panel-border);
}

.export-row .hint {
  margin: 0 0 8px;
}

.export-actions {
  margin: 0;
}

.sessions-tab {
  margin-top: 12px;
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  background: var(--surface-strong);
  overflow: hidden;
}

.sessions-tab > summary {
  cursor: pointer;
  padding: 10px 12px;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  list-style: none;
}

.sessions-tab > summary::-webkit-details-marker {
  display: none;
}

.sessions-tab > summary::after {
  content: "▾";
  float: right;
  color: var(--muted);
}

.sessions-tab:not([open]) > summary::after {
  content: "▸";
}

.sessions-tab[open] > summary {
  border-bottom: 1px solid var(--panel-border);
}

.sessions-shell {
  padding: 10px 12px 12px;
}

.sessions-shell .hint {
  margin: 0 0 8px;
}

.sessions-tools {
  margin: 0 0 8px;
}

.session-status {
  min-height: 20px;
}

.session-status.error {
  color: var(--status-error);
}

.session-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 240px;
  overflow-y: auto;
}

.session-item {
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  background: var(--surface);
  padding: 8px 10px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: start;
}

.session-title {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
}

.session-meta {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.session-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.session-actions .btn {
  min-height: 32px;
  padding: 6px 10px;
  font-size: 12px;
  border-radius: 8px;
}

.session-empty {
  margin: 0;
  padding: 10px;
  border: 1px dashed var(--panel-border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 13px;
}

.btn {
  border: 1px solid transparent;
  border-radius: 9px;
  padding: 10px 12px;
  min-height: 40px;
  background: var(--accent-2);
  color: #ffffff;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 14px;
}

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

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

.btn.ghost {
  background: transparent;
  border-color: var(--panel-border);
  color: var(--muted);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:focus-visible,
.tab:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 1040px) {
  .workspace-controls {
    grid-template-columns: repeat(2, minmax(170px, 1fr));
  }

  .topbar {
    flex-wrap: wrap;
  }

  .topbar-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }
}

@media (max-width: 760px) {
  .topbar {
    flex-wrap: wrap;
    padding: 12px 14px;
  }

  .header-controls {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .panel-row {
    flex-direction: column;
    align-items: stretch;
  }

  .panel-row .btn {
    width: 100%;
  }

  .perkins-help-card {
    width: min(760px, calc(100vw - 14px));
    max-height: 92vh;
    padding: 12px;
  }

  .perkins-help-head {
    flex-direction: column;
    align-items: stretch;
  }

  .perkins-help-actions .btn {
    width: 100%;
    min-height: 42px;
  }

  .workspace-controls {
    grid-template-columns: 1fr;
  }

  .workspace-input-strip {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .workspace-strip-status {
    align-items: start;
    text-align: left;
  }

  .action-row .btn {
    flex: 1 1 calc(50% - 8px);
    min-height: 44px;
  }

  .export-actions .btn {
    flex: 1 1 100%;
  }
}

@media (max-width: 560px) {
  .app-body > main.app-shell {
    padding: 14px 12px 22px;
  }

  .workspace {
    padding: 12px;
  }

  .action-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .action-row .btn {
    width: 100%;
  }

  .submission-confirm-actions .btn {
    width: 100%;
  }

  .perkins-help-dialog {
    padding: 10px;
  }

  .perkins-help-card {
    border-radius: 12px;
  }

  /* Session action buttons: raise to 44px touch target minimum */
  .session-actions .btn {
    min-height: 44px;
    padding: 8px 12px;
  }
}

/* Demo parity layer: visible workspace mirrors unified-braille-workspace-render.html. */
.sidebar-backdrop,
.page-topbar-profile {
  display: none;
}

.app-body {
  width: 100%;
  min-width: 0;
}

.page-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  height: auto;
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--panel-border);
  background: #ffffff;
  box-shadow: none;
  padding: 8px 12px;
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.sidebar-toggle {
  width: 36px;
  height: 36px;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: #f8fafc;
  color: var(--text);
}

.page-topbar-title {
  min-width: 280px;
  flex: 0 0 auto;
  max-width: none;
}

.page-topbar-title h1 {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.session-summary {
  position: relative;
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 280px;
}

.session-chip-wrap {
  position: relative;
  min-width: 0;
  display: flex;
}

.session-chip {
  appearance: none;
  height: 32px;
  min-height: 32px;
  min-width: max-content;
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  background: #f8fafc;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  padding: 0 10px;
  white-space: nowrap;
  flex: 0 0 auto;
}

.session-chip.table {
  min-width: 236px;
  max-width: 360px;
}

.session-table-menu {
  position: fixed !important;
  top: auto;
  left: auto;
  z-index: 100000 !important;
  width: min(360px, 85vw) !important;
  max-height: 400px !important;
  overflow-y: auto !important;
  border: 1px solid var(--panel-border) !important;
  border-radius: 8px !important;
  background: #ffffff !important;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.16) !important;
  padding: 5px !important;
  pointer-events: auto !important;
}

.session-table-menu.hidden {
  display: none !important;
}

.session-table-menu.hidden {
  display: none;
}

.session-table-option {
  width: 100%;
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  padding: 6px 8px;
  text-align: left;
}

.session-table-option:hover,
.session-table-option:focus-visible {
  background: #eef4ff;
  outline: none;
}

.session-table-option[aria-selected="true"] {
  background: #eaf0ff;
  color: var(--accent);
  font-weight: 700;
}

.session-table-option-check {
  flex: 0 0 auto;
  color: var(--accent);
}

.session-chip .chip-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-chip strong {
  color: var(--text);
}

.chip-caret {
  flex: 0 0 auto;
  color: var(--muted);
}

.page-topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  flex-wrap: nowrap;
  white-space: nowrap;
}

.topbar-action-cluster {
  gap: 8px;
}

.topbar-quick-btn {
  height: 32px;
  min-height: 32px;
  border-radius: 6px;
  border-color: var(--panel-border);
  background: #f8fafc;
  color: var(--text);
  padding: 0 12px;
  font-weight: 600;
  white-space: nowrap;
  font-size: 13px;
  flex: 0 0 auto;
}

#helpOpen {
  background: #eaf0ff;
  color: var(--accent);
  border-color: #b9caff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

#settingsOpen {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.perkins-ribbon {
  position: sticky;
  top: 0;
  z-index: 18;
  display: flex;
  gap: 0;
  margin: 0;
  padding: 10px 18px;
  overflow-x: auto;
  overflow-y: visible;
  border: 0;
  border-bottom: 1px solid var(--panel-border);
  border-radius: 0;
  background: var(--surface-strong);
  box-shadow: 0 5px 18px rgba(21, 33, 55, 0.05);
}

.ribbon-menu-wrap {
  position: relative;
  display: inline-flex;
}

.perkins-tool-btn.menu-trigger {
  min-width: 46px;
}

.ribbon-menu {
  position: fixed;
  top: auto;
  left: auto;
  z-index: 150;
  min-width: 168px;
  max-width: min(280px, 82vw);
  max-height: min(320px, calc(100vh - 120px));
  overflow-y: auto;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.16);
  padding: 5px;
}

.ribbon-menu-right {
  left: auto;
}

.ribbon-menu.hidden {
  display: none;
}

.ribbon-menu button {
  width: 100%;
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 650;
  padding: 7px 9px;
  text-align: left;
}

.ribbon-menu button:hover,
.ribbon-menu button:focus-visible {
  background: #eef4ff;
  color: var(--accent);
  outline: none;
}

.app-body > main.app-shell,
.workspace {
  padding: 0 !important;
}

.dot-grid-wrap,
.workspace-input-strip {
  display: none;
}

.unified-output-section.document-stage {
  min-height: 0 !important;
  display: block;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.unified-output-display {
  min-height: calc(100vh - 170px);
  padding: 12px;
}

.unified-output-line {
  width: 100%;
  min-height: 38px;
}

.unified-output-line.empty-document-line {
  min-height: calc(100vh - 194px);
}

.unified-output-line:first-child {
  padding-top: 38px;
}

.unified-output-line:last-child {
  min-height: calc(100vh - 194px);
}

.workspace-status-footer {
  min-height: 38px;
  flex-wrap: nowrap;
}

.perkins-tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.perkins-tool-btn.glyph {
  font-size: 17px;
  font-weight: 800;
}

.perkins-tool-btn.icon-only {
  width: 40px;
  min-width: 40px;
  max-width: 40px;
  padding: 0;
  font-size: 17px;
  font-weight: 800;
}

.icon-stack {
  display: grid;
  grid-template-columns: repeat(2, 6px);
  gap: 2px;
}

.icon-stack span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

@media (max-width: 1200px) {
  .page-topbar-title {
    min-width: 240px;
  }
}

@media (max-width: 900px) {
  .page-topbar {
    flex-wrap: wrap;
    gap: 6px;
    overflow-x: visible;
  }

  .page-topbar-title {
    width: 100%;
    min-width: auto;
    order: 1;
  }

  .session-summary {
    width: 100%;
    order: 2;
    min-width: auto;
    overflow-x: auto;
  }

  .page-topbar-actions {
    width: 100%;
    order: 3;
    margin-left: 0;
    justify-content: flex-start;
  }

  .perkins-ribbon {
    position: sticky;
    top: 0;
    z-index: 18;
    display: flex;
    gap: 0;
    margin: 0;
    padding: 10px 18px;
    overflow-x: auto;
    overflow-y: visible;
    border: 0;
    border-bottom: 1px solid var(--panel-border);
    border-radius: 0;
    background: var(--surface-strong);
    box-shadow: 0 5px 18px rgba(21, 33, 55, 0.05);
  }
}

/* Final demo fit: override shared shell max-width and remove the blank ribbon gap. */
.app-body:has(.page-topbar) > .page-topbar,
.app-body:has(.page-topbar) > main.app-shell,
#mainContent,
.workspace,
#perkinsPanel,
.perkins-ribbon,
.unified-output-section.document-stage,
.unified-output-display,
.workspace-status-footer {
  width: 100% !important;
  max-width: none !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
}

#mainContent {
  display: block !important;
  min-height: calc(100vh - 54px);
}

#perkinsPanel {
  margin-top: 0 !important;
}

.perkins-ribbon {
  position: sticky;
  top: 0;
  z-index: 18;
  display: flex;
  gap: 0;
  margin: 0;
  padding: 10px 18px;
  overflow-x: auto;
  overflow-y: visible;
  border: 0;
  border-bottom: 1px solid var(--panel-border);
  border-radius: 0;
  background: var(--surface-strong);
  box-shadow: 0 5px 18px rgba(21, 33, 55, 0.05);
}

.unified-output-display {
  min-height: calc(100vh - 179px);
  cursor: text;
  padding-left: 0 !important;
  padding-right: 0 !important;
  background: #ffffff !important;
}

.unified-output-line:last-child {
  width: 100%;
  min-height: calc(100vh - 203px);
}

.unified-output-line {
  max-width: none;
  width: 100%;
  margin-left: 0;
  margin-right: 0;
}

.legacy-workspace-control {
  display: none !important;
}

.legacy-input-engine,
.legacy-workspace-control:has(#brailleBuffer) {
  position: fixed !important;
  left: 0 !important;
  top: 0 !important;
  z-index: -1 !important;
  display: block !important;
  width: 1px !important;
  height: 1px !important;
  margin: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip-path: none !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.legacy-input-engine span,
.legacy-workspace-control:has(#brailleBuffer) span {
  display: none !important;
}

:root[data-theme="dark"] body,
:root[data-theme="dark"] #mainContent,
:root[data-theme="dark"] .workspace,
:root[data-theme="dark"] #perkinsPanel {
  background: #000000 !important;
  color: #ffffff !important;
}

:root[data-theme="dark"] .page-topbar,
:root[data-theme="dark"] .perkins-ribbon,
:root[data-theme="dark"] .workspace-status-footer {
  background: #000000 !important;
  border-color: rgba(255, 255, 255, 0.18) !important;
  color: #ffffff !important;
  box-shadow: none !important;
}

:root[data-theme="dark"] .session-summary select,
:root[data-theme="dark"] .perkins-tool-btn,
:root[data-theme="dark"] .sidebar-toggle,
:root[data-theme="dark"] .session-chip {
  background: #111111 !important;
  border-color: rgba(255, 255, 255, 0.28) !important;
  color: #ffffff !important;
  box-shadow: none !important;
}

:root[data-theme="dark"] .sidebar-toggle:hover,
:root[data-theme="dark"] .sidebar-toggle:focus-visible {
  background: #1a1a1a !important;
  border-color: #ffffff !important;
  color: #ffffff !important;
}

:root[data-theme="dark"] .perkins-tool-btn.primary,
:root[data-theme="dark"] .perkins-tool-btn.active {
  background: #ffffff !important;
  border-color: #ffffff !important;
  color: #000000 !important;
}

:root[data-theme="dark"] .unified-output-display {
  background: #000000 !important;
  border-color: rgba(255, 255, 255, 0.22) !important;
  color: #ffffff !important;
}

:root[data-theme="dark"] .unified-output-cursor {
  background: #ffffff !important;
  width: 3px;
}

:root[data-theme="dark"] .workspace-status-footer strong,
:root[data-theme="dark"] .workspace-status-footer span {
  color: #ffffff !important;
}

:root[data-theme="dark"] .workspace-footer-chip:nth-child(4)::after {
  border: 1px solid rgba(255, 255, 255, 0.38);
  background: linear-gradient(90deg, #ffffff 42%, #151515 42%) !important;
}

:root[data-theme="dark"] .session-table-menu,
:root[data-theme="dark"] .ribbon-menu {
  background: #050505 !important;
  border-color: rgba(255, 255, 255, 0.28) !important;
  box-shadow: none !important;
  color: #ffffff !important;
}

:root[data-theme="dark"] .session-table-option,
:root[data-theme="dark"] .ribbon-menu button {
  background: transparent !important;
  color: #ffffff !important;
}

:root[data-theme="dark"] .session-table-option:hover,
:root[data-theme="dark"] .session-table-option:focus-visible,
:root[data-theme="dark"] .session-table-option[aria-selected="true"],
:root[data-theme="dark"] .ribbon-menu button:hover,
:root[data-theme="dark"] .ribbon-menu button:focus-visible {
  background: #111111 !important;
  color: #ffffff !important;
  outline: 2px solid rgba(255, 255, 255, 0.5);
  outline-offset: -2px;
}

:root[data-theme="dark"] .session-table-option-check {
  color: #ffffff !important;
}

#brailleBuffer {
  width: 1px !important;
  height: 1px !important;
  min-height: 1px !important;
  max-height: 1px !important;
  padding: 0 !important;
  border: 0 !important;
  opacity: 0 !important;
}

.ribbon-menu-wrap {
  position: static !important;
  overflow: visible !important;
}

.ribbon-menu {
  position: fixed !important;
  top: auto !important;
  left: auto !important;
  z-index: 200 !important;
  min-width: 168px;
  max-width: min(280px, 82vw);
  max-height: min(320px, calc(100vh - 120px));
  overflow-y: auto;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.16);
  padding: 5px;
}

.session-chip-wrap {
  position: static !important;
  overflow: visible !important;
}

.session-table-menu {
  position: fixed !important;
  top: auto;
  left: auto;
  z-index: 100000 !important;
  width: min(360px, 85vw) !important;
  max-height: 400px !important;
  overflow-y: auto !important;
  border: 1px solid var(--panel-border) !important;
  border-radius: 8px !important;
  background: #ffffff !important;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.16) !important;
  padding: 5px !important;
  pointer-events: auto !important;
}

.session-table-menu.hidden {
  display: none !important;
}