html:has(body.questions-map-page) {
  height: 100%;
  overflow: hidden;
  overscroll-behavior-x: none;
}

body.questions-map-page {
  --map-bg: #ffffff;
  --map-surface: #fafafa;
  --map-border: #d1d5db;
  --map-text: #181818;
  --map-muted: #6b7280;
  --map-accent: #8a929b;
  --map-selected-bg: #eceef0;
  --map-selected-border: #8a929b;
  --map-link: #3988ca;
  --map-studied: #179c9e;
  --map-unclear: #ef9b2e;
  --map-line: rgba(107, 114, 128, 0.58);
  background: var(--map-bg);
  color: var(--map-text);
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  margin: 0;
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
  overscroll-behavior-x: none;
}

html[data-theme="light"] body.questions-map-page { background: var(--map-bg); }

html[data-theme="dark"] body.questions-map-page {
  --map-bg: #1a1a1a;
  --map-surface: #242424;
  --map-border: #374151;
  --map-text: #f3f4f6;
  --map-muted: #9ca3af;
  --map-selected-bg: #34383d;
  --map-selected-border: #a3abb5;
  --map-link: #78b8eb;
  --map-line: rgba(156, 163, 175, 0.58);
}

body.questions-map-page .questions-map-main,
body.questions-map-page .questions-map-main *,
body.questions-map-page .questions-map-main *::before,
body.questions-map-page .questions-map-main *::after { box-sizing: border-box; }

.questions-map-main {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  min-height: 0;
  width: 100%;
  margin: 0;
  padding: 0;
}

.questions-map-intro {
  grid-column: 2 / 5;
  grid-row: 1;
  justify-self: center;
  align-self: start;
  width: max-content;
  padding: 0.5rem;
  text-align: center;
}

.questions-map-intro h1 {
  margin: 0 0 0.65rem;
  color: var(--map-text);
  font-size: clamp(1.25rem, 1.05rem + 0.8vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.2;
  opacity: 0.82;
  white-space: nowrap;
}

.questions-map-filters { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.4rem; }

.questions-map-filter {
  --language-accent: var(--map-accent);
  min-width: 72px;
  padding: 0.36rem 0.65rem;
  border: 1px solid var(--map-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--map-surface) 76%, transparent);
  color: var(--map-muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.questions-map-filter[data-language="java"] { --language-accent: #c85f55; }
.questions-map-filter[data-language="python"] { --language-accent: #8968be; }
.questions-map-filter[data-language="javascript"] { --language-accent: #d2aa29; }
.questions-map-filter:hover { color: var(--map-text); border-color: var(--language-accent); }
.questions-map-filter[aria-pressed="true"] {
  border-color: var(--language-accent);
  background: color-mix(in srgb, var(--language-accent) 18%, var(--map-surface));
  color: var(--map-text);
}
.questions-map-filter:focus-visible { outline: 2px solid var(--language-accent); outline-offset: 2px; }

.questions-map-status {
  margin: 0;
  color: var(--map-muted);
  font-size: 0.88rem;
}

.questions-map-status:empty { display: none; }

.questions-map-workspace {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
}

.questions-map-workspace[hidden] { display: none !important; }

.questions-map-scroller {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--map-bg);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  cursor: grab;
  border-radius: 0;
  outline: none;
}

.questions-map-scroller.is-dragging { cursor: grabbing; }

.questions-map-scroller:focus-visible {
  outline: 2px solid var(--map-accent);
  outline-offset: -2px;
}

.questions-map-canvas {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  width: max-content;
  padding: 64px;
  transform-origin: 0 0;
  will-change: transform;
}

.questions-map-canvas.is-settling {
  transition: transform 440ms cubic-bezier(0.22, 1, 0.36, 1);
}

.questions-map-lines,
.questions-map-trace {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.questions-map-trace__line {
  fill: none;
  stroke: #3988ca;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 4 8;
  vector-effect: non-scaling-stroke;
}

.questions-map-trace__mask-path {
  fill: none;
  stroke: #fff;
  stroke-width: 24;
  stroke-dasharray: 1000 1000;
  stroke-dashoffset: 1000;
  animation: questions-map-trace-run 1.55s ease-in-out both;
}

@keyframes questions-map-trace-run {
  0% { stroke-dashoffset: 1000; }
  52% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -1000; }
}

.questions-map-lines path {
  fill: none;
  stroke: var(--map-line);
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-dasharray: 3 8;
  vector-effect: non-scaling-stroke;
}

.questions-map-branch {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
}

.questions-map-root {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: max-content 396px 300px 396px max-content;
  align-items: center;
  column-gap: 24px;
  row-gap: 28px;
  width: max-content;
}

.questions-map-root > .questions-map-branch { display: contents; }

.questions-map-root > .questions-map-branch > .questions-map-card {
  justify-self: center;
  position: relative;
  height: 60px;
}
.questions-map-root > .questions-map-branch:not(.is-left) > .questions-map-card { grid-column: 4; left: 22px; }
.questions-map-root > .questions-map-branch.is-left > .questions-map-card { grid-column: 2; left: -22px; }
.questions-map-root > .questions-map-branch:not(.is-left) > .questions-map-children {
  grid-column: 5;
  justify-self: start;
}
.questions-map-root > .questions-map-branch.is-left > .questions-map-children {
  grid-column: 1;
  justify-self: end;
}

.questions-map-branch.is-left:not(.is-root),
.questions-map-branch.is-left > .questions-map-card { flex-direction: row-reverse; }

.questions-map-branch.is-left > .questions-map-children {
  margin-right: 92px;
  margin-left: 0;
}

.questions-map-children {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-left: 92px;
}

.questions-map-children:empty { display: none; }

.questions-map-card {
  display: flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  min-height: 50px;
  color: var(--map-text);
}

.questions-map-card__question {
  display: grid;
  place-items: center;
  flex: 0 0 358px;
  width: 358px;
  min-height: 50px;
  padding: 0.58rem 1.05rem;
  border: 1px solid var(--map-border);
  border-radius: 999px;
  background: var(--map-surface);
  color: var(--map-text);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.questions-map-card__question:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--map-accent) 58%, var(--map-border));
}

.questions-map-card.is-selected .questions-map-card__question {
  border-color: var(--map-selected-border);
  background: var(--map-selected-bg);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--map-selected-border) 65%, transparent);
}

.questions-map-card.is-studied .questions-map-card__question {
  border-color: var(--map-studied);
  background: color-mix(in srgb, var(--map-studied) 20%, var(--map-surface));
}

.questions-map-card.is-unclear .questions-map-card__question {
  border-color: var(--map-unclear);
  background: color-mix(in srgb, var(--map-unclear) 20%, var(--map-surface));
}

.questions-map-card.is-selected.is-studied .questions-map-card__question {
  box-shadow: 0 0 0 2px var(--map-studied);
}

.questions-map-card.is-selected.is-unclear .questions-map-card__question {
  box-shadow: 0 0 0 2px var(--map-unclear);
}

.questions-map-card__title {
  display: -webkit-box;
  max-width: 100%;
  overflow: hidden;
  overflow-wrap: anywhere;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
}

.questions-map-card__expand {
  display: grid;
  place-items: center;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--map-border);
  border-radius: 50%;
  background: var(--map-surface);
  color: var(--map-muted);
  line-height: 0;
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease;
}

.questions-map-card__expand svg {
  display: block;
  transition: transform 240ms ease;
}

.questions-map-card__expand.is-linked {
  border-color: var(--map-link);
  border-style: dashed;
  border-width: 2px;
  color: var(--map-link);
}

.questions-map-card__expand.is-linked svg { display: none; }

.questions-map-card__expand.is-linked::after {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.questions-map-card__expand.is-linked:hover { border-color: var(--map-link); color: var(--map-link); }

.questions-map-card__expand:hover { border-color: var(--map-accent); color: var(--map-accent); }
.questions-map-card__expand[aria-expanded="true"] svg { transform: rotate(45deg); }
.questions-map-card__expand[hidden] { display: none; }
.questions-map-card button:focus-visible { outline: 2px solid var(--map-accent); outline-offset: 2px; }

.questions-map-card__question.is-revisited {
  animation: questions-map-revisit 900ms ease;
}

@keyframes questions-map-revisit {
  0%, 100% { border-color: var(--map-border); background: var(--map-surface); }
  28%, 72% { border-color: #3988ca; background: color-mix(in srgb, #78baf0 28%, var(--map-surface)); }
}

.questions-map-branch.is-appearing > .questions-map-card {
  animation: questions-map-node-in 330ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes questions-map-node-in {
  from { opacity: 0; transform: translateX(-12px) scale(0.97); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

.questions-map-branch.is-left.is-appearing > .questions-map-card {
  animation-name: questions-map-node-in-left;
}

@keyframes questions-map-node-in-left {
  from { opacity: 0; transform: translateX(12px) scale(0.97); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

.questions-map-answer {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  width: clamp(340px, 36vw, 560px);
  height: 100%;
  min-height: 0;
  overflow: hidden;
  padding: 1rem 1.15rem;
  border: 0;
  border-radius: 8px;
  background: #fafafa;
  color: var(--map-text);
}

.questions-map-answer[hidden] { display: none !important; }

html[data-theme="dark"] .questions-map-answer { background: #242424; }

.questions-map-answer__close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #e9eaec;
  color: #777e87;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease;
}

.questions-map-answer__close:hover { background: #dfe2e5; color: #454b54; }
.questions-map-answer__close:focus-visible { outline: 2px solid var(--map-accent); outline-offset: 2px; }
html[data-theme="dark"] .questions-map-answer__close { background: #3b3e42; color: #c3c8ce; }
html[data-theme="dark"] .questions-map-answer__close:hover { background: #50555a; color: #fff; }

.questions-map-answer__heading {
  padding: 0 2.4rem 1rem 0;
}

.questions-map-answer__title-row {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
}

.questions-map-answer__category {
  display: inline-block;
  flex: 0 0 auto;
  margin-top: 0.12rem;
  padding: 0.16rem 0.48rem;
  border-radius: 999px;
  background: var(--chip-bg, #eef2f7);
  color: var(--chip-color, #45556b);
  font-size: 0.68rem;
  font-weight: 700;
}

.questions-map-answer__category:empty { display: none; }

.questions-map-answer h2 {
  min-width: 0;
  margin: 0;
  color: var(--map-text);
  font-size: clamp(1rem, 0.92rem + 0.4vw, 1.18rem);
  line-height: 1.3;
  text-align: left;
}

.questions-map-answer__heading p {
  min-height: 0;
  margin: 0.35rem 0 0;
  color: var(--map-muted);
  font-size: 0.75rem;
}

.questions-map-answer__heading p:empty { display: none; }

#questions-map-answer-frame {
  width: 100%;
  height: 100%;
  min-height: 0;
  border: 0;
  background: transparent;
  color-scheme: light dark;
}

@media (max-width: 767px) {
  .questions-map-workspace { --map-answer-top: 48dvh; }
  .questions-map-workspace.has-answer {
    display: block;
  }
  .questions-map-workspace.has-answer .questions-map-scroller {
    height: var(--map-answer-top);
  }
  .questions-map-answer {
    position: fixed;
    top: var(--map-answer-top);
    bottom: 0;
    right: 0;
    height: auto;
    width: 100%;
    padding: 0.75rem 0.85rem;
    border-radius: 12px 12px 0 0;
  }
  .questions-map-answer__close { top: 0.7rem; right: 0.7rem; }
  .questions-map-answer__heading { padding-bottom: 0.65rem; }
  .questions-map-answer h2 { font-size: 0.98rem; }
  .questions-map-root {
    --map-phone-pill-width: clamp(170px, calc(77vw - 75px), 220px);
    grid-template-columns: max-content calc(var(--map-phone-pill-width) + 36px) 48px calc(var(--map-phone-pill-width) + 36px) max-content;
    column-gap: 8px;
    row-gap: 18px;
  }
  .questions-map-root > .questions-map-branch:not(.is-left) > .questions-map-card,
  .questions-map-root > .questions-map-branch.is-left > .questions-map-card { left: 0; }
  .questions-map-card { gap: 8px; }
  .questions-map-card__question {
    flex-basis: var(--map-phone-pill-width);
    width: var(--map-phone-pill-width);
    font-size: 0.8rem;
  }
  .questions-map-children { margin-left: 48px; }
  .questions-map-branch.is-left > .questions-map-children { margin-right: 48px; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .questions-map-trace__mask-path { animation: none; stroke-dashoffset: 0; }
  .questions-map-canvas.is-settling { transition: none; }
  .questions-map-branch.is-appearing > .questions-map-card { animation: none; }
  .questions-map-card,
  .questions-map-card__expand,
  .questions-map-card__expand svg { transition: none; }
  .questions-map-card__question.is-revisited { animation: none; border-color: var(--map-link); }
}