#demo-problem .d-problem-mode-row {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 16px;
}

#demo-problem .d-problem-seg {
  flex: 0 0 auto;
}

#demo-problem .d-problem-shell {
  position: relative;
  width: 100%;
}

#demo-problem .d-problem-stage {
  --toast-scale: var(--toast-demo-scale);
  width: 100%;
}

#demo-problem .d-problem-stage.is-compact {
  --toast-scale: calc(min(var(--boost, 1), 1.6) * var(--toast-demo-scale));
}

#demo-problem .d-problem-design {
  background: var(--bg-raised);
}

#demo-problem .d-problem-layout {
  display: grid;
  width: 1120px;
  height: 560px;
  grid-template-columns: 740px 340px;
  gap: 20px;
  background: var(--bg-raised);
}

#demo-problem .d-problem-canvas {
  position: relative;
  width: 740px;
  height: 560px;
  overflow: hidden;
  background: var(--bg);
}

#demo-problem .d-problem-menubar {
  z-index: 5;
  width: 740px;
}

#demo-problem .d-problem-window {
  position: absolute;
  overflow: hidden;
  transition: opacity 200ms var(--ease-out);
}

#demo-problem .d-problem-reader {
  top: 68px;
  left: 24px;
  z-index: 4;
  width: 410px;
  height: 480px;
  opacity: .96;
}

#demo-problem .d-problem-notes {
  top: 128px;
  left: 426px;
  z-index: 2;
  width: 290px;
  height: 342px;
  opacity: .92;
}

#demo-problem .d-problem-window.is-active {
  opacity: 1;
}

#demo-problem .d-problem-reader-body {
  height: calc(100% - 28px);
  overflow: hidden;
}

#demo-problem .d-problem-article-scroll {
  height: 100%;
  overflow: hidden;
}

#demo-problem .d-problem-article-content {
  padding: 14px 20px 16px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 14px;
  line-height: 1.45;
  transition: transform 600ms var(--ease-out);
}

#demo-problem .d-problem-article-content p {
  margin: 0 0 8px;
}

#demo-problem .d-problem-chapter-label {
  margin-bottom: 3px !important;
  color: var(--ink-2);
  font-family: var(--font-ui);
  font-size: 11px;
  line-height: 1.3;
}

#demo-problem .d-problem-article-content h2 {
  margin: 0 0 8px;
  font-size: 25px;
  line-height: 1.08;
}

#demo-problem .d-problem-target {
  border-radius: 2px;
  transition: background-color 180ms var(--ease-out);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

#demo-problem .d-problem-target.is-selected {
  background: var(--select);
}

#demo-problem .d-problem-diagram {
  position: relative;
  width: min(404px, 100%);
  height: 74px;
  margin-top: 7px;
  color: var(--ink-2);
  font-family: var(--font-ui);
}

#demo-problem .d-problem-diagram svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 86px;
  overflow: visible;
  transform: scaleY(.86);
  transform-origin: top left;
}

#demo-problem .d-problem-link {
  fill: none;
  stroke: var(--ink-3);
  stroke-width: 1.2;
}

#demo-problem .d-problem-link--lag {
  stroke-dasharray: 4 4;
  stroke: var(--ink-3);
}

#demo-problem .d-problem-node {
  fill: var(--bg-raised);
  stroke: var(--line);
  stroke-width: 1;
}

#demo-problem .d-problem-node--leader {
  fill: var(--fill-soft);
}

#demo-problem .d-problem-node--late {
  stroke: var(--ink-3);
  stroke-dasharray: 3 3;
}

#demo-problem .d-problem-node-label {
  position: absolute;
  color: var(--ink-2);
  font-size: 10px;
  line-height: 1;
  text-align: center;
}

#demo-problem .d-problem-node-label--leader {
  top: 31px;
  left: 2.475%;
  width: 23.267%;
  color: var(--ink);
}

#demo-problem .d-problem-node-label--follower-one {
  top: 7px;
  left: 54.703%;
  width: 28.713%;
}

#demo-problem .d-problem-node-label--follower-two {
  top: 31px;
  left: 54.703%;
  width: 28.713%;
}

#demo-problem .d-problem-node-label--follower-three {
  top: 57px;
  left: 54.703%;
  width: 28.713%;
  color: var(--ink-3);
}

#demo-problem .d-problem-notes-body {
  display: flex;
  height: calc(100% - 28px);
  background: var(--card);
}

#demo-problem .d-problem-sidebar {
  width: 150px;
  flex: 0 0 150px;
  padding: 8px 7px;
  border-right: 1px solid var(--line);
  background: var(--bg-raised);
  color: var(--ink-2);
  font-family: var(--font-ui);
  font-size: 12px;
}

#demo-problem .d-problem-sidebar-title {
  padding: 2px 6px 7px;
  color: var(--ink-3);
  font-size: 10px;
  line-height: 1.2;
}

#demo-problem .d-problem-note-row {
  overflow: hidden;
  padding: 5px 6px;
  border-radius: 5px;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#demo-problem .d-problem-note-row.is-selected {
  background: var(--fill-soft);
  color: var(--ink);
}

#demo-problem .d-problem-editor {
  min-width: 0;
  flex: 1 1 auto;
  padding: 13px 14px;
  color: var(--ink);
  font-family: var(--font-ui);
}

#demo-problem .d-problem-editor-title {
  margin-bottom: 11px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.25;
}

#demo-problem .d-problem-note-content {
  color: var(--ink);
  font-size: 13px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

#demo-problem .d-problem-inbox-source {
  display: none;
  margin-bottom: 7px;
  color: var(--ink-2);
  font-size: 12px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

#demo-problem .d-problem-inbox-source.is-visible {
  display: block;
}

#demo-problem .d-problem-empty-note {
  color: var(--ink-3);
}

#demo-problem .d-problem-empty-note.is-hidden {
  display: none;
}

#demo-problem .d-problem-pasted-note,
#demo-problem .d-problem-inbox-source,
#demo-problem .d-problem-source-line {
  display: none;
}

#demo-problem .d-problem-pasted-note.is-visible,
#demo-problem .d-problem-inbox-source.is-visible,
#demo-problem .d-problem-source-line.is-visible {
  display: block;
}

#demo-problem .d-problem-pasted-note.is-inbox-capture {
  display: block;
  padding: 3px 4px;
  border-radius: 4px;
  background-color: var(--accent-soft);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--t-toast) var(--ease-out),
    transform var(--t-toast) var(--ease-out),
    background-color 1200ms var(--ease-out);
}

#demo-problem .d-problem-pasted-note.is-inbox-capture.is-visible {
  opacity: 1;
  transform: translateY(0);
  background-color: transparent;
}

#demo-problem .d-problem-pasted-note.is-inbox-capture.is-settled {
  opacity: 1;
  transform: none;
  background-color: transparent;
  transition: none;
}

#demo-problem .d-problem-pasted-note.is-broken {
  line-height: 1.65;
}

#demo-problem .d-problem-break-mark {
  padding-inline: 2px;
  border-radius: 2px;
  background: var(--select);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 10px;
}

#demo-problem .d-problem-source-line {
  margin-top: 7px;
  color: var(--ink-2);
  font-size: 12px;
}

#demo-problem .d-problem-focus-tag {
  position: absolute;
  top: 55px;
  left: 40px;
  z-index: 7;
  transform-origin: bottom left;
  transition: transform 400ms var(--ease-out);
}

#demo-problem .d-problem-switcher {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 9;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 22px 16px;
  border: .5px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: var(--shadow-panel);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(.98);
  transition: opacity 150ms var(--ease-out), transform 150ms var(--ease-out);
}

#demo-problem .d-problem-switcher.is-visible {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

#demo-problem .d-problem-switcher.is-static-frame {
  transition: none;
}

#demo-problem .d-problem-switcher-tile {
  display: flex;
  min-width: 72px;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--ink-2);
  font-family: var(--font-ui);
  font-size: 11px;
  line-height: 1;
}

#demo-problem .d-problem-switcher-tile > span:last-child {
  transform: scale(var(--boost, 1));
  transform-origin: top center;
}

#demo-problem .d-problem-tile-icon {
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--card);
  color: var(--ink);
  font-size: 25px;
  font-weight: 500;
}

#demo-problem .d-problem-tile-icon--notes,
#demo-problem .d-problem-tile-icon--browser,
#demo-problem .d-problem-tile-icon--mail { background: var(--card); }

#demo-problem .d-problem-switcher-tile.is-selected {
  color: var(--ink);
}

#demo-problem .d-problem-switcher-tile.is-selected .d-problem-tile-icon {
  box-shadow: 0 0 0 6px var(--fill-soft);
}

#demo-problem .d-problem-toast {
  position: absolute;
  bottom: 28px;
  left: 50%;
  z-index: 8;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px) scale(var(--toast-scale));
  transform-origin: bottom center;
  transition: opacity 200ms var(--ease-in), transform 0ms linear 200ms;
}

#demo-problem .d-problem-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0) scale(var(--toast-scale));
  transition: opacity var(--t-toast) var(--ease-out), transform var(--t-toast) var(--ease-out);
}

#demo-problem .d-problem-key-overlay {
  position: absolute;
  z-index: 8;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 150ms var(--ease-out), transform 150ms var(--ease-out);
}

#demo-problem .d-problem-key-overlay.is-visible {
  opacity: 1;
  transform: translateY(0);
}

#demo-problem .d-problem-key-overlay .fn-keys--overlay {
  transform: scale(var(--boost, 1));
  transform-origin: bottom center;
}

#demo-problem .d-problem-pointer {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 8;
  width: 20px;
  height: 24px;
  opacity: 0;
  pointer-events: none;
  transition-property: transform, opacity;
  transition-timing-function: var(--ease-out);
}

#demo-problem .d-problem-pointer--ibeam {
  width: 18px;
}

#demo-problem .d-problem-pointer.is-visible {
  opacity: 1;
}

#demo-problem .d-problem-confusion {
  position: absolute;
  right: 24px;
  bottom: 17px;
  z-index: 6;
  margin: 0;
  color: var(--ink-2);
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.3;
  transform: scale(var(--boost, 1));
  transform-origin: bottom right;
  opacity: 0;
  transition: opacity 250ms var(--ease-out);
}

#demo-problem .d-problem-confusion.is-visible {
  opacity: 1;
}

#demo-problem .d-problem-stage.is-compact .d-problem-focus-tag,
#demo-problem .d-problem-stage.is-compact .d-problem-switcher-tile > span:last-child,
#demo-problem .d-problem-stage.is-compact .d-problem-key-overlay .keycap,
#demo-problem .d-problem-stage.is-compact .d-problem-confusion {
  font-size: 14px;
}

#demo-problem .d-problem-details {
  width: 340px;
  height: 560px;
  padding: 30px 14px 18px 12px;
  background: var(--bg-raised);
  color: var(--ink);
}

#demo-problem .d-problem-steps {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

#demo-problem .d-problem-step {
  display: grid;
  min-height: 27px;
  grid-template-columns: 16px minmax(0, 1fr) 12px;
  align-items: start;
  column-gap: 8px;
  font-size: 15px;
  line-height: 1.42;
}

#demo-problem .d-problem-step-number {
  padding-top: 3px;
  color: var(--ink-3);
  font-size: 12px;
  line-height: 1.2;
  text-align: right;
}

#demo-problem .d-problem-step-text {
  color: var(--ink-3);
}

#demo-problem .d-problem-step-check {
  padding-top: 2px;
  color: var(--ink-2);
  font-size: 12px;
  line-height: 1.2;
  text-align: center;
}

#demo-problem .d-problem-step.is-current .d-problem-step-number,
#demo-problem .d-problem-step.is-current .d-problem-step-text {
  color: var(--ink);
}

#demo-problem .d-problem-step.is-done .d-problem-step-number,
#demo-problem .d-problem-step.is-done .d-problem-step-text {
  color: var(--ink-2);
}

#demo-problem .d-problem-counters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 28px 0 0 24px;
}

#demo-problem .d-problem-counter {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

#demo-problem .d-problem-counter-value {
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 40px;
  font-weight: 300;
  letter-spacing: -.025em;
  line-height: 1;
  font-variant-numeric: lining-nums tabular-nums;
}

#demo-problem .d-problem-counter-label {
  margin-top: 6px;
  color: var(--ink-2);
  font-size: 12px;
  line-height: 1.3;
}

#demo-problem .d-problem-promise {
  display: none;
  margin: 22px 0 0 24px;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.4;
}

#demo-problem .d-problem-promise.is-visible {
  display: block;
}

#demo-problem .d-problem-replay {
  display: none;
  min-height: 26px;
  margin: 7px 0 0 20px;
  padding: 0 4px;
  font-size: 13px;
  line-height: 1.3;
}

#demo-problem .d-problem-replay.is-visible {
  display: inline-flex;
}

#demo-problem .d-problem-pause {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 12;
}

@media (max-width: 720px) {
  #demo-problem .d-problem-mode-row {
    margin-bottom: 16px;
  }

  #demo-problem .d-problem-stage {
    border-radius: 14px;
  }

  #demo-problem .d-problem-layout {
    display: block;
    width: 740px;
    height: 520px;
  }

  #demo-problem .d-problem-layout.is-mobile-design {
    width: 740px;
    height: 520px;
  }

  #demo-problem .d-problem-canvas {
    width: 740px;
    height: 520px;
  }

  #demo-problem .d-problem-reader {
    top: 60px;
    height: 448px;
  }

  #demo-problem .d-problem-article-content {
    padding-top: 12px;
    padding-bottom: 8px;
    font-size: 13px;
    line-height: 1.3;
  }

  #demo-problem .d-problem-article-content p {
    margin-bottom: 6px;
  }

  #demo-problem .d-problem-article-content h2 {
    margin-bottom: 6px;
  }

  #demo-problem .d-problem-details {
    width: 100%;
    height: auto;
    min-height: 0;
    margin-top: 16px;
    padding: 22px 20px 24px;
    border-top: 1px solid var(--line);
  }

  #demo-problem .d-problem-steps {
    gap: 9px;
  }

  #demo-problem .d-problem-counters {
    max-width: 320px;
    margin: 24px 0 0 24px;
  }

  #demo-problem .d-problem-promise {
    margin-top: 18px;
  }

  #demo-problem .d-problem-replay {
    margin-top: 5px;
  }

  #demo-problem .d-problem-pause {
    right: 12px;
    bottom: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  #demo-problem .d-problem-window,
  #demo-problem .d-problem-article-content,
  #demo-problem .d-problem-target,
  #demo-problem .d-problem-pasted-note.is-inbox-capture,
  #demo-problem .d-problem-focus-tag,
  #demo-problem .d-problem-switcher,
  #demo-problem .d-problem-key-overlay,
  #demo-problem .d-problem-pointer,
  #demo-problem .d-problem-confusion {
    transition-duration: 0ms !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  #demo-problem .d-problem-toast {
    transform: translate(-50%, 0) scale(var(--toast-scale));
    transition: opacity 200ms linear !important;
  }
}