:root {
  --bg: #050505;
  --panel: #090909;
  --panel-alt: #0d0d0b;
  --paper: #ece8df;
  --paper-alt: #ded8cd;
  --ink: #111111;
  --text: #ece8df;
  --muted: #8f897e;
  --line: rgba(236, 232, 223, 0.28);
  --line-strong: rgba(236, 232, 223, 0.55);
  --accent-text: #3e8b60;
  --accent-text-optional: #4f78d1;
  --accent-concept: #7a5bc2;
  --shadow: rgba(0, 0, 0, 0.28);
  --page-width: 18px;
  --page-gap: 7px;
  --toolbar-height: 20px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(255, 255, 255, 0.018) 0,
      rgba(255, 255, 255, 0.018) 1px,
      transparent 1px,
      transparent 5px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.012) 0,
      rgba(255, 255, 255, 0.012) 1px,
      transparent 1px,
      transparent 9px
    );
  opacity: 0.55;
}

.app-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(480px, 49%) minmax(520px, 51%);
  height: 100%;
  min-height: 0;
  transition: opacity 180ms ease, filter 180ms ease;
}

.app-shell::after {
  position: absolute;
  inset: 0;
  z-index: 10;
  content: "";
  background: rgba(5, 5, 5, 0.28);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

body.is-building {
  cursor: progress;
}

body.is-building .app-shell {
  opacity: 0.34;
  filter: grayscale(0.18);
  pointer-events: none;
  user-select: none;
}

body.is-building .app-shell::after {
  opacity: 1;
}

.pane {
  min-width: 0;
  min-height: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.012), rgba(255, 255, 255, 0.012)),
    var(--panel);
}

.pane--input {
  display: grid;
  grid-template-rows: minmax(0, 1fr) minmax(240px, 0.92fr);
  border-right: 1px solid var(--line-strong);
}

.pane--output {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.subpane {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.subpane + .subpane {
  border-top: 1px solid var(--line-strong);
}

.section-header {
  display: grid;
  gap: 10px;
  padding: 12px 22px 12px;
  border-bottom: 1px solid var(--line);
}

.section-header--output {
  padding-right: 16px;
}

.section-heading {
  display: flex;
  align-items: center;
}

.section-title {
  margin: 0;
  font-size: 12px;
  line-height: 1;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-toolbar {
  display: flex;
  gap: 12px;
  align-items: stretch;
  justify-content: space-between;
  min-width: 0;
}

.control-row {
  display: flex;
  align-items: stretch;
  gap: 6px;
  min-height: var(--toolbar-height);
  min-width: 0;
}

.control-row--texts {
  flex: 1 1 0;
  flex-wrap: nowrap;
  justify-content: flex-end;
}

.control-row--concepts,
.control-row--output {
  flex: 0 0 auto;
  justify-content: flex-end;
}

.button-strip {
  display: flex;
  gap: 6px;
  flex: 0 0 auto;
  flex-wrap: nowrap;
}

.control-input,
.control-button {
  min-height: var(--toolbar-height);
  height: var(--toolbar-height);
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(236, 232, 223, 0.04);
  color: var(--text);
  font: inherit;
}

.control-input {
  appearance: none;
  flex: 1 1 220px;
  min-width: 160px;
  max-width: 340px;
  width: 100%;
  padding: 0 10px;
  font-size: 10px;
  letter-spacing: 0.02em;
}

.control-input::placeholder {
  color: rgba(236, 232, 223, 0.54);
  opacity: 1;
}

.control-button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 11px;
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
}

.control-button--wide {
  min-width: 160px;
}

.control-button--download {
  min-width: 170px;
}

.control-button:hover {
  background: rgba(236, 232, 223, 0.08);
}

.control-button:focus-visible,
.control-input:focus-visible {
  outline: none;
  border-color: var(--line-strong);
  box-shadow: inset 0 0 0 1px rgba(236, 232, 223, 0.08);
}

.control-button:disabled,
.control-button.is-disabled {
  opacity: 0.46;
  cursor: not-allowed;
}

.control-button:disabled:hover,
.control-button.is-disabled:hover {
  background: rgba(236, 232, 223, 0.04);
}

.control-button.is-busy {
  border-color: var(--line-strong);
}

.stacked-bar {
  display: flex;
  flex: 0 0 var(--bar-width, 48%);
  min-width: 0;
  width: auto;
  max-width: 100%;
  height: var(--toolbar-height);
  border: 1px solid var(--line);
  background: rgba(236, 232, 223, 0.03);
  overflow: hidden;
}

.stacked-bar--empty {
  display: flex;
  align-items: center;
  padding: 0 7px;
}

.stacked-bar__empty {
  color: var(--muted);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.stacked-bar__segment {
  appearance: none;
  min-width: 2px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: rgba(236, 232, 223, 0.2);
  box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.38);
  cursor: pointer;
  transition: opacity 120ms ease, filter 120ms ease;
}

.stacked-bar__segment:last-child {
  box-shadow: none;
}

.stacked-bar__segment--neutral {
  background: rgba(236, 232, 223, 0.12);
}

.stacked-bar__segment--text {
  background: rgba(62, 139, 96, 0.18);
}

.stacked-bar__segment--optional {
  background: rgba(79, 120, 209, 0.24);
}

.stacked-bar__segment--concept {
  background: rgba(122, 91, 194, 0.22);
}

.stacked-bar__segment.is-dimmed,
.stacked-bar.has-hover .stacked-bar__segment:not(.is-hovered) {
  opacity: 0.25;
}

.stacked-bar__segment.is-hovered {
  position: relative;
  z-index: 1;
  box-shadow: inset 0 0 0 1px rgba(236, 232, 223, 0.9);
}

.stacked-bar__segment:focus-visible {
  outline: none;
  position: relative;
  z-index: 1;
  box-shadow: inset 0 0 0 1px rgba(236, 232, 223, 0.9);
}

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

.site-footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  min-width: 0;
  height: 22px;
  padding: 0 12px;
  border-top: 1px solid var(--line);
  background:
    linear-gradient(rgba(255, 255, 255, 0.012), rgba(255, 255, 255, 0.012)),
    var(--panel);
  overflow: hidden;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.site-footer__display {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  min-width: 0;
  transition: opacity 120ms ease;
}

.site-footer__label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-footer__marquee {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  padding: 0 12px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.site-footer__marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 42px;
  min-width: max-content;
  transform: translateX(0);
  will-change: transform;
}

.site-footer__marquee-track span {
  white-space: nowrap;
}

.site-footer__editor {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.site-footer__input {
  appearance: none;
  flex: 0 1 280px;
  min-width: 160px;
  height: 16px;
  padding: 0 6px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(236, 232, 223, 0.05);
  color: var(--text);
  font: inherit;
  font-size: 9px;
  letter-spacing: 0.06em;
}

.site-footer__input::placeholder {
  color: rgba(236, 232, 223, 0.5);
  opacity: 1;
}

.site-footer__input:focus-visible {
  outline: none;
  border-color: var(--line-strong);
}

.site-footer__hint {
  color: var(--muted);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-footer__progress {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  padding: 0 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.site-footer__progress-track {
  position: absolute;
  inset: 0;
  border-top: 1px solid transparent;
  background: rgba(236, 232, 223, 0.04);
}

.site-footer__progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background:
    linear-gradient(90deg, rgba(236, 232, 223, 0.14), rgba(236, 232, 223, 0.24)),
    rgba(236, 232, 223, 0.1);
  border-right: 1px solid rgba(236, 232, 223, 0.28);
}

.site-footer__progress-label {
  position: relative;
  z-index: 1;
  color: var(--paper);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-footer.is-editing .site-footer__display {
  opacity: 0;
  pointer-events: none;
}

.site-footer.is-editing .site-footer__editor {
  opacity: 1;
  pointer-events: auto;
}

.site-footer.is-building .site-footer__display,
.site-footer.is-building .site-footer__editor {
  opacity: 0;
  pointer-events: none;
}

.site-footer.is-building .site-footer__progress {
  opacity: 1;
}

.site-footer--static .site-footer__marquee-copy + .site-footer__marquee-copy {
  display: none;
}

.site-footer:not(.is-editing):hover .site-footer__label {
  opacity: 0;
}

.site-footer:not(.is-editing):hover .site-footer__marquee {
  opacity: 1;
}

.site-footer--overflow:not(.is-editing):hover .site-footer__marquee-track {
  animation: footer-marquee var(--footer-marquee-duration, 36s) linear infinite;
}

.metric-strip,
.meta-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 14px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.metric-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 1px 5px 0;
  border: 1px solid var(--line);
  background: rgba(236, 232, 223, 0.04);
}

.metric-pill--live::before,
.metric-pill--alert::before,
.metric-pill--text::before,
.metric-pill--optional::before,
.metric-pill--concept::before,
.metric-pill--neutral::before {
  display: inline-block;
  width: 6px;
  height: 6px;
  content: "";
}

.metric-pill--live::before,
.metric-pill--text::before {
  background: var(--accent-text);
}

.metric-pill--alert::before,
.metric-pill--optional::before {
  background: var(--accent-text-optional);
}

.metric-pill--concept::before {
  background: var(--accent-concept);
}

.metric-pill--neutral::before {
  background: var(--paper-alt);
}

.concept-input:focus,
.concept-link-summary:focus {
  outline: none;
  border-color: var(--line-strong);
  box-shadow: inset 0 0 0 1px rgba(236, 232, 223, 0.1);
}

.table-wrap {
  min-height: 0;
  overflow: auto;
  padding: 0 0 4px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0.015)),
    var(--panel-alt);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 11px;
  line-height: 1.25;
}

.data-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 8px 8px 7px;
  border-bottom: 1px solid var(--line-strong);
  background: #11110f;
  color: var(--muted);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-align: left;
  text-transform: uppercase;
}

.data-table tbody td {
  padding: 7px 8px 6px;
  border-bottom: 1px solid rgba(236, 232, 223, 0.08);
  vertical-align: top;
}

.data-table tbody tr {
  transition: background-color 120ms ease, color 120ms ease;
}

.data-table tbody tr:hover,
.data-table tbody tr.is-hovered {
  background: rgba(236, 232, 223, 0.08);
}

.data-table tbody tr.is-dimmed {
  opacity: 0.42;
}

.data-table .cell-checkbox {
  width: 36px;
}

.data-table .cell-code {
  width: 48px;
}

.data-table .cell-date {
  width: 54px;
}

.data-table .cell-linked {
  width: 112px;
}

.data-table .cell-pages {
  width: 44px;
}

.data-table .cell-link {
  width: 54px;
}

.row-code,
.row-date,
.row-pages {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.row-code {
  color: var(--muted);
}

.data-table--texts .row-code {
  color: var(--accent-text);
}

.data-table--texts .row-code.row-code--optional {
  color: var(--accent-text-optional);
}

.data-table--concepts .row-code {
  color: var(--accent-concept);
}

.data-link {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid rgba(236, 232, 223, 0.5);
}

.data-link--disabled {
  border-bottom-style: dotted;
  color: var(--muted);
  cursor: default;
}

.output-layout {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 264px;
}

.preview-panel {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  padding: 0;
}

.preview-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.preview-view-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
}

.preview-view-label {
  color: var(--muted);
}

.preview-view-button {
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  cursor: pointer;
}

.preview-view-button.is-active {
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 0.14em;
}

.preview-surface {
  position: relative;
  min-height: 0;
  overflow: auto;
  padding: 18px 12px 24px 26px;
}

.preview-surface--matrix {
  align-content: start;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--page-width), var(--page-width)));
  grid-auto-rows: calc(var(--page-width) * 1.4142);
  gap: var(--page-gap);
}

.preview-surface--graph {
  overflow: hidden;
  padding-right: 8px;
}

.preview-surface.has-hover .page-card:not(.is-hovered),
.preview-surface.has-hover .graph-node:not(.is-hovered) {
  opacity: 0.24;
}

.preview-surface.has-hover .preview-link:not(.is-hovered),
.preview-surface.has-hover .preview-link-dot:not(.is-hovered) {
  opacity: 0.16;
}

.preview-link-layer {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 1;
  overflow: visible;
}

.preview-link {
  fill: none;
  stroke: rgba(122, 91, 194, 0.62);
  stroke-width: 1.3;
  stroke-linecap: square;
  stroke-linejoin: miter;
}

.preview-link--graph {
  stroke: rgba(236, 232, 223, 0.48);
  stroke-width: 1;
}

.preview-link-dot {
  stroke: rgba(17, 17, 17, 0.4);
  stroke-width: 0.45;
}

.preview-link-dot--concept {
  fill: var(--accent-concept);
}

.preview-link-dot--text {
  fill: var(--accent-text);
}

.preview-link-dot--optional {
  fill: var(--accent-text-optional);
}

.page-card {
  position: relative;
  z-index: 2;
  width: var(--page-width);
  aspect-ratio: 1 / 1.4142;
  border: 1px solid rgba(17, 17, 17, 0.85);
  background: var(--paper);
  box-shadow: 0 0 0 1px rgba(236, 232, 223, 0.08), 0 1px 0 var(--shadow);
}

.page-card::after {
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  content: "";
  background: transparent;
}

.page-card--front {
  background: #d6d2ca;
}

.page-card--concept {
  border-style: dashed;
  background: #f5f2ea;
  border-color: rgba(122, 91, 194, 0.68);
}

.page-card--start::before {
  position: absolute;
  top: -1px;
  left: -10px;
  height: 100%;
  content: attr(data-code);
  color: var(--muted);
  font-size: 7px;
  letter-spacing: 0.1em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  text-transform: uppercase;
}

.page-card--start.page-card--text::before {
  color: var(--accent-text);
}

.page-card--start.page-card--text[data-optional="true"]::before {
  color: var(--accent-text-optional);
}

.page-card--start.page-card--concept::before {
  color: var(--accent-concept);
}

.page-card--start.page-card--text::after {
  background: var(--accent-text);
}

.page-card--start.page-card--text[data-optional="true"]::after,
.register-row--optional .register-row__code {
  background: rgba(79, 120, 209, 0.24);
}

.page-card--start.page-card--concept::after {
  background: var(--accent-concept);
}

.page-card.is-hovered {
  opacity: 1 !important;
  box-shadow: 0 0 0 1px rgba(236, 232, 223, 0.6), 0 0 0 2px rgba(236, 232, 223, 0.25);
}

.page-card__page-number {
  position: absolute;
  right: 2px;
  bottom: 1px;
  color: rgba(17, 17, 17, 0.5);
  font-size: 6px;
  letter-spacing: 0.02em;
}

.page-card__micro {
  position: absolute;
  top: 2px;
  left: 2px;
  color: rgba(17, 17, 17, 0.45);
  font-size: 6px;
  line-height: 1;
}

.graph-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.graph-node {
  cursor: default;
}

.graph-node.is-new {
  opacity: 0;
  animation: preview-node-enter 500ms cubic-bezier(0.16, 1, 0.3, 1) var(--enter-delay, 0s) both;
}

.graph-node__dot {
  fill: rgba(17, 17, 17, 0.85);
}

.graph-node__label {
  fill: var(--paper);
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.1em;
}

.graph-node--text .graph-node__dot,
.graph-node--text .graph-node__label {
  fill: var(--accent-text);
}

.graph-node--text.graph-node--optional .graph-node__dot,
.graph-node--text.graph-node--optional .graph-node__label {
  fill: var(--accent-text-optional);
}

.graph-node--concept .graph-node__dot,
.graph-node--concept .graph-node__label {
  fill: var(--accent-concept);
}

.graph-empty {
  display: grid;
  place-items: center;
  min-height: 220px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.graph-empty-label {
  fill: var(--muted);
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.preview-link--graph.is-new {
  stroke-dasharray: var(--path-length);
  stroke-dashoffset: var(--path-length);
  animation: preview-link-draw 500ms cubic-bezier(0.16, 1, 0.3, 1) var(--enter-delay, 0s) both;
}

.preview-link:not(.preview-link--graph).is-new {
  opacity: 0;
  animation: preview-link-enter 260ms cubic-bezier(0.16, 1, 0.3, 1) var(--enter-delay, 0s) both;
}

.preview-link-dot.is-new {
  opacity: 0;
  animation: preview-link-enter 220ms cubic-bezier(0.16, 1, 0.3, 1) var(--enter-delay, 0s) both;
}

@keyframes preview-node-enter {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes preview-link-enter {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes preview-link-draw {
  from {
    stroke-dashoffset: var(--path-length);
  }
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes footer-marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(calc(-1 * var(--footer-marquee-distance, 0px)));
  }
}

.register-panel {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  border-left: 1px solid var(--line);
  background:
    linear-gradient(rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0.015)),
    #0c0c0a;
}

.register-header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.register-list {
  min-height: 0;
  overflow: auto;
}

.register-row {
  display: grid;
  grid-template-columns: 44px 66px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  padding: 8px 14px 7px;
  border-bottom: 1px solid rgba(236, 232, 223, 0.08);
  cursor: default;
}

.register-row:hover,
.register-row.is-hovered {
  background: rgba(236, 232, 223, 0.08);
}

.register-row.is-dimmed {
  opacity: 0.42;
}

.register-row__code,
.register-row__range {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.register-row__code {
  display: inline-flex;
  justify-content: center;
  padding: 1px 4px 0;
  border: 1px solid var(--line);
  background: rgba(62, 139, 96, 0.18);
}

.register-row--front .register-row__code {
  background: rgba(236, 232, 223, 0.12);
}

.register-row--concept .register-row__code {
  background: rgba(122, 91, 194, 0.22);
}

.register-row__label {
  display: grid;
  gap: 2px;
}

.register-row__title {
  font-size: 11px;
}

.register-row__meta {
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.concept-input {
  width: 100%;
  padding: 0;
  border: 0;
  border-bottom: 1px dotted rgba(236, 232, 223, 0.2);
  border-radius: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 11px;
}

.concept-page-input {
  width: 100%;
  min-width: 0;
  padding: 0;
  border: 0;
  border-bottom: 1px dotted rgba(236, 232, 223, 0.2);
  border-radius: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 10px;
  text-align: left;
}

.concept-page-input:focus {
  outline: none;
  border-color: var(--line-strong);
  box-shadow: inset 0 -1px 0 rgba(236, 232, 223, 0.12);
}

.concept-link-picker {
  position: relative;
}

.concept-link-picker[open] {
  z-index: 4;
}

.concept-link-picker--disabled {
  opacity: 0.7;
}

.concept-link-summary {
  display: block;
  width: 100%;
  padding: 1px 14px 1px 0;
  border-bottom: 1px dotted rgba(236, 232, 223, 0.2);
  color: var(--text);
  font: inherit;
  font-size: 10px;
  text-transform: uppercase;
  cursor: pointer;
  list-style: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.concept-link-summary::-webkit-details-marker {
  display: none;
}

.concept-link-summary::after {
  position: absolute;
  top: 1px;
  right: 0;
  color: var(--muted);
  content: "+";
}

.concept-link-picker[open] .concept-link-summary::after {
  content: "-";
}

.concept-link-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 132px;
  max-width: 180px;
  max-height: 180px;
  overflow: auto;
  padding: 6px 8px;
  border: 1px solid var(--line-strong);
  background: #0f0f0d;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.32);
}

.concept-link-actions {
  display: flex;
  gap: 6px;
  padding: 0 0 5px;
  margin: 0 0 4px;
  border-bottom: 1px solid rgba(236, 232, 223, 0.08);
}

.concept-link-action {
  appearance: none;
  min-height: 16px;
  padding: 0 6px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(236, 232, 223, 0.04);
  color: var(--muted);
  font: inherit;
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

.concept-link-action:hover {
  background: rgba(236, 232, 223, 0.08);
  color: var(--paper);
}

.concept-link-action:focus-visible {
  outline: none;
  border-color: var(--line-strong);
  color: var(--paper);
}

.concept-link-option {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 2px 0;
  color: var(--text);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.concept-link-empty {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.concept-placeholder {
  color: var(--muted);
  font-size: 11px;
  font-style: italic;
}

.concept-delete {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}

.concept-delete:hover {
  color: var(--paper);
}

input[type="checkbox"] {
  margin: 0;
  appearance: none;
  inline-size: 12px;
  block-size: 12px;
  border: 1px solid var(--paper);
  border-radius: 0;
  background: transparent;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
}

input[type="checkbox"]::after {
  inline-size: 4px;
  block-size: 4px;
  background: var(--ink);
  content: "";
  opacity: 0;
}

input[type="checkbox"]:checked {
  background: var(--paper);
}

input[type="checkbox"]:checked::after {
  opacity: 1;
}

input[type="checkbox"]:focus-visible {
  outline: none;
  box-shadow: 0 0 0 1px var(--panel), 0 0 0 2px var(--paper);
}

@media (max-width: 1180px) {
  body {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(700px, 1fr) minmax(700px, 1fr);
    height: auto;
    min-height: 100%;
  }

  .site-footer {
    position: sticky;
    bottom: 0;
  }

  .pane--input {
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .output-layout {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(0, 1fr) 220px;
  }

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

  .control-row--texts {
    flex-wrap: wrap;
  }

  .control-input {
    min-width: 0;
    width: 100%;
  }

  .button-strip {
    flex-wrap: wrap;
  }

  .register-panel {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .meta-cluster--muted {
    justify-content: flex-start;
    text-align: left;
  }
}