/* MedDex Visuals — teaching visuals inside a Chat answer (flowchart, steps,
   mind map, quiz, images, ECG). One quiet card language shared by all of
   them; tokens fall back to literals so cards render the same on /spatial.
   Mobile first: everything fits a 340 px bubble; wider cards add layout. */
.mdx-visuals { display: grid; gap: 12px; margin: 12px 0 4px; }
.mdx-visuals:not(:has(> :not([hidden]))) { display: none; }
.mdx-visual {
  --v-ink: var(--mdx-ink, #0e1726);
  --v-ink-2: var(--mdx-ink-2, #33415a);
  --v-muted: var(--mdx-muted, #5f6c80);
  --v-faint: var(--mdx-faint, #8b97a8);
  --v-surface: var(--mdx-surface, #ffffff);
  --v-sunken: var(--mdx-surface-2, #f7f9fc);
  --v-hair: var(--mdx-hair, rgba(14, 23, 38, 0.08));
  --v-hair-strong: var(--mdx-hair-strong, rgba(14, 23, 38, 0.16));
  --v-accent: var(--mdx-blue, #1769ff);
  --v-accent-ink: var(--mdx-blue-ink, #0b46b5);
  --v-accent-wash: var(--mdx-blue-wash, rgba(23, 105, 255, 0.08));
  --v-green: var(--mdx-green, #0f9d6c);
  --v-green-wash: rgba(15, 157, 108, 0.1);
  --v-red: var(--mdx-red, #dc2626);
  --v-red-wash: rgba(220, 38, 38, 0.08);
  --v-amber: #a16207;
  --v-amber-wash: rgba(202, 138, 4, 0.12);
  --v-ease: var(--mdx-ease, cubic-bezier(0.22, 0.9, 0.24, 1));
  position: relative; min-width: 0; max-width: 720px; padding: 13px 13px 12px;
  border: 1px solid var(--v-hair); border-radius: 18px; background: var(--v-surface); color: var(--v-ink);
  box-shadow: 0 1px 1px rgba(14, 23, 38, 0.03), 0 10px 28px -18px rgba(14, 23, 38, 0.24);
  font: inherit; font-size: 0.92rem; line-height: 1.45; -webkit-tap-highlight-color: transparent;
}
.mdx-visual-head { margin: 0 0 10px; }
.mdx-visual-kind { display: block; color: var(--v-accent); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; }
.mdx-visual-title { margin: 2px 0 0; font-size: 1rem; font-weight: 700; line-height: 1.28; letter-spacing: -0.012em; color: var(--v-ink); }
.mdx-visual-hint, .mdx-visual-caption { margin: 8px 0 0; color: var(--v-muted); font-size: 0.78rem; }
.mdx-visual-pending { padding: 14px; border: 1px dashed var(--mdx-hair-strong, rgba(14, 23, 38, 0.16)); border-radius: 18px; color: var(--mdx-muted, #5f6c80); font-size: 0.8rem; animation: mdxVisualPulse 1.4s ease-in-out infinite; }
@keyframes mdxVisualPulse { 50% { opacity: 0.55; } }
.mdx-sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Buttons shared by every card. 40 px targets for touch. */
.mdx-visual-controls { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.mdx-btn, .mdx-visual-reset {
  min-height: 36px; padding: 7px 13px; border: 1px solid var(--v-hair-strong); border-radius: 999px; background: var(--v-surface);
  color: var(--v-ink-2); font: inherit; font-size: 0.8rem; font-weight: 650; cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}
.mdx-btn:hover, .mdx-visual-reset:hover { border-color: var(--v-accent); color: var(--v-accent); }
.mdx-btn.is-primary { border-color: transparent; background: var(--v-accent); color: #fff; }
.mdx-btn.is-primary:hover { background: var(--v-accent-ink); color: #fff; }
.mdx-btn:disabled { opacity: 0.45; cursor: default; }
.mdx-visual-reset { margin-top: 10px; }
.mdx-link-btn { padding: 0; border: 0; background: none; color: var(--v-accent); font: inherit; font-weight: 650; text-decoration: underline; text-underline-offset: 2px; cursor: pointer; }
.mdx-visual :focus-visible { outline: 2px solid var(--v-accent); outline-offset: 2px; }

/* ---- Flowchart ---------------------------------------------------------- */
.mdx-flow { position: relative; display: grid; gap: 22px; padding: 4px 2px 6px; overflow-x: auto; overscroll-behavior-x: contain; }
.mdx-flow-links { position: absolute; inset: 0; pointer-events: none; overflow: visible; }
.mdx-flow-links .mdx-link { fill: none; stroke: var(--v-hair-strong); stroke-width: 1.6; transition: stroke 200ms ease, opacity 200ms ease; }
.mdx-flow-links marker path { fill: var(--v-faint); }
.mdx-flow-links .mdx-link-label { fill: var(--v-muted); font-size: 10px; font-weight: 650; }
.mdx-flow.is-following .mdx-link { opacity: 0.25; }
.mdx-flow.is-following .mdx-link.is-on { opacity: 1; stroke: var(--v-accent); stroke-width: 2.2; }
.mdx-flow-row { position: relative; z-index: 1; display: flex; align-items: center; justify-content: center; gap: 10px; min-width: min-content; }
.mdx-flow-node {
  flex: 1 1 0; min-width: 104px; max-width: 260px; padding: 9px 11px; border: 1px solid var(--v-hair-strong); border-radius: 12px;
  background: var(--v-surface); color: var(--v-ink); font-size: 0.82rem; font-weight: 600; line-height: 1.32; text-align: center;
  transition: opacity 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}
.mdx-flow-node.is-start, .mdx-flow-node.is-end { border-radius: 999px; background: var(--v-sunken); }
.mdx-flow-node.is-decision { border-color: rgba(23, 105, 255, 0.32); background: var(--v-accent-wash); }
.mdx-flow-node.is-action { border-color: rgba(15, 157, 108, 0.35); background: var(--v-green-wash); }
.mdx-flow-node.is-alert { border-color: rgba(220, 38, 38, 0.35); background: var(--v-red-wash); color: var(--v-red); }
.mdx-flow.is-following .mdx-flow-node { opacity: 0.38; }
.mdx-flow.is-following .mdx-flow-node.is-on { opacity: 1; box-shadow: 0 0 0 2px var(--v-accent-wash); }
.mdx-flow-choices { display: flex; flex-wrap: wrap; justify-content: center; gap: 5px; margin-top: 7px; }
.mdx-flow-choice { min-height: 32px; padding: 4px 11px; border: 1px solid var(--v-accent); border-radius: 999px; background: var(--v-surface); color: var(--v-accent); font: inherit; font-size: 0.74rem; font-weight: 700; cursor: pointer; }
.mdx-flow-choice:hover { background: var(--v-accent); color: #fff; }

/* ---- Steps -------------------------------------------------------------- */
.mdx-steps { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; counter-reset: none; }
.mdx-step { position: relative; display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 10px; padding: 0 0 12px; transition: opacity 220ms ease; }
.mdx-step:not(:last-child)::before { content: ""; position: absolute; left: 13.5px; top: 28px; bottom: 0; width: 1px; background: var(--v-hair-strong); }
.mdx-step-n { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--v-accent-wash); color: var(--v-accent); font-size: 0.8rem; font-weight: 800; }
.mdx-step-title { display: block; padding-top: 4px; font-size: 0.88rem; }
.mdx-step-detail { margin: 3px 0 0; color: var(--v-ink-2); font-size: 0.84rem; }
.mdx-steps.is-walking .mdx-step.is-later { opacity: 0.28; }
.mdx-steps.is-walking .mdx-step.is-done { opacity: 0.62; }
.mdx-steps.is-walking .mdx-step.is-current .mdx-step-n { background: var(--v-accent); color: #fff; }

/* ---- Mind map ----------------------------------------------------------- */
/* Mind map: centre topic, coloured branches, curved connectors, folding nodes. */
.mdx-visual.mdx-mind-card { max-width: 980px; }
.mdx-mind-toolbar { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 8px; }
.mdx-mind-tool { min-width: 36px; min-height: 32px; padding: 4px 11px; border: 1px solid var(--v-hair-strong); border-radius: 999px; background: var(--v-surface); color: var(--v-ink); font: inherit; font-size: 0.76rem; font-weight: 650; cursor: pointer; transition: background 160ms ease; }
.mdx-mind-tool:hover:not(:disabled) { background: var(--v-sunken); }
.mdx-mind-tool:disabled { opacity: 0.38; cursor: default; }
.mdx-mind-tool:focus-visible, .mdx-mind-viewport:focus-visible { outline: 2px solid var(--v-accent); outline-offset: 2px; }
.mdx-mind-viewport { position: relative; height: 320px; overflow: hidden; border: 1px solid var(--v-hair); border-radius: 14px; background: radial-gradient(circle at 1px 1px, var(--v-hair) 1px, transparent 0) 0 0 / 18px 18px, var(--v-sunken); touch-action: pan-y; user-select: none; -webkit-user-select: none; }
.mdx-mind-viewport.is-pannable { cursor: grab; }
.mdx-mind-viewport.is-dragging { cursor: grabbing; }
.mdx-mind-card.is-stack .mdx-mind-viewport { background: var(--v-surface); border-color: transparent; }
.mdx-mind-svg { display: block; width: 100%; height: 100%; overflow: visible; }
.mdx-mind-node { transition: transform 280ms var(--v-ease); }
.mdx-mind-svg.is-static .mdx-mind-node { transition: none; }
.mdx-mind-node[tabindex] { cursor: pointer; outline: none; }
.mdx-mind-box { fill: var(--v-surface); stroke: var(--v-hair-strong); stroke-width: 1; }
.mdx-mind-text { fill: var(--v-ink); font-family: inherit; letter-spacing: -0.005em; }
.mdx-mind-node.is-d0 .mdx-mind-box { fill: var(--v-ink); stroke: none; }
.mdx-mind-node.is-d0 .mdx-mind-text { fill: var(--v-surface); }
.mdx-mind-node.is-d1 .mdx-mind-box { fill: var(--tone); fill-opacity: 0.13; stroke: var(--tone); stroke-opacity: 0.55; stroke-width: 1.2; }
.mdx-mind-node.is-d2 .mdx-mind-box { stroke: var(--tone); stroke-opacity: 0.32; }
.mdx-mind-node.is-d3 .mdx-mind-box { fill: var(--v-sunken); stroke: var(--v-hair); }
.mdx-mind-node.is-d3 .mdx-mind-text { fill: var(--v-ink-2); }
.mdx-mind-node[tabindex]:hover .mdx-mind-box { stroke-opacity: 0.9; }
.mdx-mind-node[tabindex]:focus-visible .mdx-mind-box { stroke: var(--v-accent); stroke-opacity: 1; stroke-width: 2; }
.mdx-mind-knob circle { fill: var(--v-surface); stroke: var(--tone, var(--v-hair-strong)); stroke-width: 1.2; }
.mdx-mind-knob-text { fill: var(--tone, var(--v-ink)); font-size: 9.5px; font-weight: 800; font-family: inherit; }
.mdx-mind-link { fill: none; stroke: var(--tone); stroke-linecap: round; stroke-opacity: 0.78; animation: mdxMindFade 260ms ease both; }
.mdx-mind-link.is-d1 { stroke-width: 2.6; }
.mdx-mind-link.is-d2 { stroke-width: 1.7; }
.mdx-mind-link.is-d3 { stroke-width: 1.2; stroke-opacity: 0.6; }
.mdx-mind-link.is-trunk { stroke: var(--v-faint); stroke-opacity: 0.55; stroke-width: 2; }
@keyframes mdxMindFade { from { opacity: 0; } }

/* ---- Quiz --------------------------------------------------------------- */
.mdx-quiz-progress { margin: 0 0 6px; color: var(--v-faint); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.mdx-quiz-progress:empty { display: none; }
.mdx-quiz-stem { margin: 0 0 10px; font-weight: 600; }
.mdx-quiz-options { display: grid; gap: 6px; }
.mdx-quiz-option {
  display: grid; grid-template-columns: 26px minmax(0, 1fr); align-items: start; gap: 9px; width: 100%; min-height: 44px; padding: 9px 11px;
  border: 1px solid var(--v-hair-strong); border-radius: 12px; background: var(--v-surface); color: var(--v-ink); font: inherit; font-size: 0.86rem; text-align: left; cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease;
}
.mdx-quiz-option:not(:disabled):hover { border-color: var(--v-accent); background: var(--v-accent-wash); }
.mdx-quiz-option:disabled { cursor: default; }
.mdx-quiz-letter { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--v-sunken); color: var(--v-muted); font-size: 0.76rem; font-weight: 800; }
.mdx-quiz-text { padding-top: 3px; }
.mdx-quiz-option.is-correct { border-color: var(--v-green); background: var(--v-green-wash); }
.mdx-quiz-option.is-correct .mdx-quiz-letter { background: var(--v-green); color: #fff; }
.mdx-quiz-option.is-wrong { border-color: var(--v-red); background: var(--v-red-wash); }
.mdx-quiz-option.is-wrong .mdx-quiz-letter { background: var(--v-red); color: #fff; }
.mdx-quiz-option:disabled:not(.is-correct):not(.is-wrong) { opacity: 0.6; }
.mdx-quiz-feedback { margin: 8px 0 0; font-weight: 700; font-size: 0.86rem; }
.mdx-quiz-feedback:empty { display: none; }
.mdx-quiz-verdict { margin: 10px 0; padding: 10px 12px; border-radius: 12px; background: var(--v-sunken); font-size: 0.86rem; }
.mdx-quiz-verdict.is-correct { background: var(--v-green-wash); }
.mdx-quiz-verdict.is-correct > strong { color: var(--v-green); }
.mdx-quiz-verdict.is-wrong { background: var(--v-red-wash); }
.mdx-quiz-verdict.is-wrong > strong { color: var(--v-red); }
.mdx-quiz-verdict p { margin: 5px 0 0; color: var(--v-ink-2); }
.mdx-quiz-summary { margin: 0 0 10px; font-weight: 600; }
.mdx-quiz-review { display: grid; gap: 8px; margin: 0 0 12px; padding: 0; list-style: none; }
.mdx-quiz-review li { padding: 9px 11px; border-radius: 12px; border-left: 3px solid var(--v-green); background: var(--v-sunken); font-size: 0.84rem; }
.mdx-quiz-review li.is-wrong { border-left-color: var(--v-red); }
.mdx-quiz-review p { margin: 4px 0 0; color: var(--v-ink-2); }
.mdx-quiz-review .mdx-quiz-review-answer { color: var(--v-ink); font-weight: 600; }

/* ---- Images ------------------------------------------------------------- */
.mdx-images { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.mdx-images.is-loading { display: block; }
.mdx-image { margin: 0; min-width: 0; }
.mdx-image-open { display: block; overflow: hidden; border: 1px solid var(--v-hair); border-radius: 12px; background: #fff; aspect-ratio: 4 / 3; }
.mdx-image-open img { display: block; width: 100%; height: 100%; object-fit: contain; }
.mdx-image-credit { display: grid; gap: 2px; margin-top: 5px; font-size: 0.72rem; line-height: 1.32; }
.mdx-image-title { overflow: hidden; color: var(--v-ink); font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.mdx-image-license { color: var(--v-muted); overflow-wrap: anywhere; }
.mdx-image-license a { color: var(--v-accent); }

/* ---- ECG ---------------------------------------------------------------- */
.mdx-ecg { display: grid; gap: 8px; }
.mdx-ecg-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.mdx-ecg-title { font-size: 0.92rem; }
.mdx-ecg-badge { flex: none; padding: 3px 9px; border-radius: 999px; font-size: 0.68rem; font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase; }
.mdx-ecg-badge.is-simulated { background: var(--v-amber-wash); color: var(--v-amber); }
.mdx-ecg-badge.is-real { background: var(--v-green-wash); color: var(--v-green); }
.mdx-ecg-canvas { display: block; width: 100%; border-radius: 10px; border: 1px solid var(--v-hair); touch-action: pan-y; }
.mdx-ecg-controls { display: grid; gap: 6px; }
.mdx-ecg-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.mdx-ecg-play { min-width: 82px; }
.mdx-ecg-labels[aria-pressed="true"] { border-color: var(--v-accent); color: var(--v-accent); background: var(--v-accent-wash); }
.mdx-seg { display: inline-flex; align-items: center; gap: 2px; padding: 2px; border-radius: 999px; background: var(--v-sunken); }
.mdx-seg-cap { padding: 0 4px 0 8px; color: var(--v-faint); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.mdx-seg-btn { min-height: 32px; min-width: 34px; padding: 4px 8px; border: 0; border-radius: 999px; background: transparent; color: var(--v-muted); font: inherit; font-size: 0.74rem; font-weight: 650; cursor: pointer; white-space: nowrap; }
.mdx-seg-btn[aria-pressed="true"] { background: var(--v-surface); color: var(--v-accent); box-shadow: 0 1px 3px rgba(14, 23, 38, 0.14); }
.mdx-ecg-source { color: var(--v-muted); font-size: 0.74rem; line-height: 1.4; }
.mdx-ecg-source a { color: var(--v-accent); }
.mdx-ecg-source .mdx-link-btn { display: inline-flex; align-items: center; min-height: 32px; margin-left: 6px; font-size: 0.74rem; }
.mdx-ecg-info { border-top: 1px solid var(--v-hair); padding-top: 8px; }
.mdx-ecg-info > summary { color: var(--v-ink); font-weight: 700; font-size: 0.86rem; cursor: pointer; }
.mdx-ecg-dl { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 4px 12px; margin: 8px 0; font-size: 0.82rem; }
.mdx-ecg-dl dt { color: var(--v-muted); font-weight: 650; }
.mdx-ecg-dl dd { margin: 0; color: var(--v-ink); }
.mdx-ecg-features { margin: 6px 0; padding-left: 18px; color: var(--v-ink-2); font-size: 0.82rem; }
.mdx-ecg-significance { margin: 6px 0 0; padding: 8px 10px; border-radius: 10px; background: var(--v-accent-wash); color: var(--v-ink); font-size: 0.82rem; }
.mdx-ecg-quiz:empty { display: none; }
.mdx-ecg12-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 10px; }
.mdx-ecg12-canvas { max-width: none; }
.mdx-imaging-library.mdx-imaging-block { margin: 0; max-width: none; }
.mdx-imaging-block .mdx-imaging-card { margin: 0; }
.mdx-ecg12-hint { margin: 0; color: var(--v-muted); font-size: 0.72rem; }
.mdx-imaging-fallback { padding: 8px 10px; border-radius: 10px; background: var(--v-amber-wash, rgba(202,138,4,.12)); color: var(--v-ink, #0e1726); }
@media (max-width: 420px) {
  .mdx-ecg-dl { grid-template-columns: minmax(0, 1fr); }
  .mdx-ecg-dl dd { margin-bottom: 4px; }
}

/* ---- Clerking guide: the answer's own sections, folding and tickable ---- */
.mdx-clerk {
  --c-ink: var(--mdx-ink, #0e1726); --c-muted: var(--mdx-muted, #5f6c80); --c-hair: var(--mdx-hair, rgba(14, 23, 38, 0.08));
  --c-surface: var(--mdx-surface, #ffffff); --c-sunken: var(--mdx-surface-2, #f7f9fc); --c-accent: var(--mdx-blue, #1769ff);
}
.mdx-clerk-bar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; margin: 0 0 10px; padding: 9px 10px;
  border: 1px solid var(--c-hair); border-radius: 14px; background: var(--c-surface); box-shadow: 0 6px 18px -14px rgba(14, 23, 38, 0.35);
}
.mdx-clerk-name { flex: 1 1 100%; font-size: 0.86rem; color: var(--c-ink); }
.mdx-clerk-progress { flex: 1 1 auto; color: var(--c-muted); font-size: 0.76rem; font-weight: 700; }
.mdx-clerk-bar .mdx-btn { min-height: 34px; padding: 5px 11px; font-size: 0.76rem; border: 1px solid var(--mdx-hair-strong, rgba(14,23,38,.16)); border-radius: 999px; background: var(--c-surface); color: var(--c-ink); font-weight: 650; cursor: pointer; }
.mdx-clerk-section { --tone: #6d5ce7; margin: 0 0 8px; border: 1px solid var(--c-hair); border-left: 3px solid var(--tone); border-radius: 6px 14px 14px 6px; background: var(--c-surface); }
.mdx-clerk-section.is-alert { --tone: var(--mdx-red, #dc2626); }
.mdx-clerk-section.is-examine { --tone: var(--mdx-green, #0f9d6c); }
.mdx-clerk-section.is-investigate { --tone: var(--mdx-blue, #1769ff); }
.mdx-clerk-section.is-manage { --tone: #b7791f; }
.mdx-clerk-section.is-reason, .mdx-clerk-section.is-note { --tone: #64748b; }
.mdx-clerk-summary { display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 6px 12px; cursor: pointer; list-style: none; }
.mdx-clerk-summary::-webkit-details-marker { display: none; }
.mdx-clerk-summary::before { content: ""; flex: none; width: 7px; height: 7px; border-right: 2px solid var(--c-muted); border-bottom: 2px solid var(--c-muted); transform: rotate(-45deg); transition: transform 160ms ease; }
.mdx-clerk-section[open] > .mdx-clerk-summary::before { transform: rotate(45deg); }
.mdx-clerk-summary > h3, .mdx-clerk-summary > h4 { flex: 1 1 auto; min-width: 0; margin: 0 !important; font-size: 0.98rem !important; line-height: 1.3 !important; }
.mdx-clerk-kind { flex: none; padding: 2px 8px; border-radius: 999px; background: color-mix(in srgb, var(--tone) 12%, transparent); color: var(--tone); font-size: 0.66rem; font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase; }
.mdx-clerk-count { flex: none; min-width: 34px; color: var(--c-muted); font-size: 0.74rem; font-weight: 700; text-align: right; }
.mdx-clerk-section.is-complete .mdx-clerk-count { color: var(--mdx-green, #0f9d6c); }
.mdx-clerk-content { padding: 0 12px 10px 14px; }
.mdx-clerk-content > *:first-child { margin-top: 0; }
.mdx-clerk-content .ai-list { padding-left: 0; }
.mdx-clerk-item { display: flex !important; align-items: flex-start; gap: 10px; list-style: none; margin-left: 0 !important; padding-left: 0 !important; }
.mdx-clerk-item::before, .mdx-clerk-item::marker { content: none !important; display: none !important; }
.mdx-clerk-text { flex: 1 1 auto; min-width: 0; }
.mdx-clerk-tick { flex: none; width: 20px; height: 20px; margin: 0.18em 0 0; accent-color: var(--tone, #1769ff); cursor: pointer; }
.mdx-clerk-item.is-done { color: var(--c-muted); }
body.dark-mode .mdx-clerk, .spatial-scene .mdx-clerk { --c-ink: #eef4fb; --c-muted: #a4b1c4; --c-hair: rgba(255,255,255,.1); --c-surface: #121a26; --c-sunken: #0f1620; }

/* ---- Dark surfaces: app dark mode and the always-dark Spatial scene ---- */
body.dark-mode .mdx-visual, .spatial-scene .mdx-visual {
  --v-ink: #eef4fb; --v-ink-2: #cbd6e5; --v-muted: #a4b1c4; --v-faint: #7e8da3; --v-surface: #121a26; --v-sunken: #0f1620;
  --v-hair: rgba(255, 255, 255, 0.09); --v-hair-strong: rgba(255, 255, 255, 0.18); --v-accent: #6aa8ff; --v-accent-ink: #9cc4ff;
  --v-accent-wash: rgba(106, 168, 255, 0.14); --v-green: #4ade80; --v-green-wash: rgba(74, 222, 128, 0.12); --v-red: #f87171; --v-red-wash: rgba(248, 113, 113, 0.12);
  --v-amber: #f1cf86; --v-amber-wash: rgba(241, 207, 134, 0.12);
  box-shadow: 0 12px 32px -16px rgba(0, 0, 0, 0.75);
}
body.dark-mode .mdx-image-open, .spatial-scene .mdx-image-open { background: #e9edf2; }

@media (prefers-reduced-motion: reduce) {
  .mdx-visual *, .mdx-visual-pending { transition-duration: 1ms !important; animation: none !important; }
}

.mdx-visual.is-inline { margin: 14px 0; }

/* Mind maps (21 Oct): an adaptive map that reads inside the chat (layout
   chosen for the space and the tree; detail opens on demand), springs
   between layouts, and a full-screen explorer with floating controls. */
.mdx-mind-toolbar { align-items: center; }
.mdx-mind-group { display: inline-flex; gap: 0; }
.mdx-mind-group .mdx-mind-tool:first-child { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.mdx-mind-group .mdx-mind-tool:last-child { border-top-left-radius: 0; border-bottom-left-radius: 0; margin-left: -1px; }
.mdx-mind-tool.is-primary { background: var(--v-ink); color: var(--v-surface); border-color: var(--v-ink); margin-left: auto; }
.mdx-mind-tool.is-primary:hover:not(:disabled) { background: var(--v-ink-2); }
.mdx-mind-layout { min-height: 32px; max-width: 132px; padding: 4px 26px 4px 11px; border: 1px solid var(--v-hair-strong); border-radius: 999px; background: var(--v-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%238b97a8' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 10px center; color: var(--v-ink); font: inherit; font-size: 0.76rem; font-weight: 650; -webkit-appearance: none; appearance: none; }
@media (max-width: 480px) { .mdx-mind-toolbar .mdx-mind-layout { display: none; } }
.mdx-mind-viewport { transition: height 320ms var(--v-ease); }
.mdx-mind-svg.is-static .mdx-mind-node, .mdx-mind-node { transition: none; }
.mdx-mind-node { cursor: pointer; outline: none; -webkit-tap-highlight-color: transparent; }
.mdx-mind-node > * { transition: opacity 220ms ease; }
.mdx-mind-node.is-dim > * { opacity: 0.4; }
.mdx-mind-node.is-d0 .mdx-mind-box, .mdx-mind-node.is-d1 .mdx-mind-box { filter: drop-shadow(0 1px 1.5px rgba(14, 23, 38, 0.10)); }
.mdx-mind-node:active .mdx-mind-box { stroke-opacity: 1; }
.mdx-mind-node.is-selected .mdx-mind-box { stroke: var(--tone, var(--v-accent)); stroke-opacity: 1; stroke-width: 2.4; }
.mdx-mind-node.is-d0.is-selected .mdx-mind-box { stroke: var(--v-accent); }
.mdx-mind-node:focus-visible .mdx-mind-box { stroke: var(--v-accent); stroke-opacity: 1; stroke-width: 2; }
.mdx-mind-knob { cursor: pointer; }
.mdx-mind-knob circle { fill: var(--v-surface); stroke: var(--tone, var(--v-hair-strong)); stroke-width: 1.3; }
.mdx-mind-link { transition: stroke-opacity 220ms ease; animation: none; }
.mdx-mind-link.is-dim { stroke-opacity: 0.2; }
.mdx-mind-live { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mdx-mind-placeholder { border-radius: 14px; background: var(--v-sunken); }
.mdx-mind-full { position: fixed; inset: 0; z-index: 2147483000; overflow: hidden; animation: mdxMindFade 200ms ease both;
  --v-ink: var(--mdx-ink, #0e1726); --v-ink-2: var(--mdx-ink-2, #33415a); --v-muted: var(--mdx-muted, #5f6c80); --v-faint: var(--mdx-faint, #8b97a8);
  --v-surface: var(--mdx-surface, #ffffff); --v-sunken: var(--mdx-surface-2, #f7f9fc); --v-hair: var(--mdx-hair, rgba(14, 23, 38, 0.08));
  --v-hair-strong: var(--mdx-hair-strong, rgba(14, 23, 38, 0.16)); --v-accent: var(--mdx-blue, #1769ff); --v-ease: var(--mdx-ease, cubic-bezier(0.22, 0.9, 0.24, 1));
  background: var(--v-surface); color: var(--v-ink); font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif; font-size: 0.92rem; line-height: 1.45; }
.mdx-mind-full.is-dark { --v-ink: #eef4fb; --v-ink-2: #cbd6e5; --v-muted: #a4b1c4; --v-faint: #7e8da3; --v-surface: #121a26; --v-sunken: #0f1620; --v-hair: rgba(255, 255, 255, 0.09); --v-hair-strong: rgba(255, 255, 255, 0.18); --v-accent: #6aa8ff; }
.mdx-mind-full-stage { position: absolute; inset: 0; display: flex; flex-direction: column; gap: 8px; box-sizing: border-box;
  padding: max(10px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(10px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left)); }
.mdx-mind-full.is-rotated .mdx-mind-full-stage { inset: auto; top: 0; left: 0; width: 100vh; height: 100vw; transform-origin: top left; transform: translateX(100vw) rotate(90deg);
  padding: 10px max(12px, env(safe-area-inset-bottom)) 10px max(12px, env(safe-area-inset-top)); }
.mdx-mind-full-bar { display: flex; align-items: center; gap: 8px; }
.mdx-mind-full-bar .mdx-mind-tool.is-primary { margin-left: 0; }
.mdx-mind-full-title { flex: 1; min-width: 0; margin: 0; font-weight: 700; font-size: 0.95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mdx-mind-full .mdx-mind-viewport { flex: 1; height: auto !important; min-height: 0; touch-action: none; transition: none; }
.mdx-mind-float { position: absolute; right: max(18px, env(safe-area-inset-right)); bottom: max(18px, env(safe-area-inset-bottom)); display: flex; gap: 6px; padding: 6px; border: 1px solid var(--v-hair); border-radius: 999px; background: color-mix(in srgb, var(--v-surface) 88%, transparent); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); box-shadow: 0 8px 24px -12px rgba(14, 23, 38, 0.35); }
.mdx-mind-full.is-rotated .mdx-mind-float { right: 18px; bottom: 14px; }
.mdx-mind-float .mdx-mind-tool { min-height: 36px; min-width: 40px; }
@media (prefers-reduced-motion: reduce) { .mdx-mind-full, .mdx-mind-viewport, .mdx-mind-node > * { animation: none; transition: none; } }
.mdx-mind-full.is-dark .mdx-mind-layout, body.dark-mode .mdx-visual .mdx-mind-layout { background-color: #1b2533; color: #eef4fb; color-scheme: dark; }