/* qxmd350: Play app + phone web + landscape/portrait.
   Question text ~MARKS reading size. Stem/solution figures fill the paper
   (lift the 240/280px laptop cap). Option figures stay compact. Table cells stay in-cell. */

html[data-qx-shell="app"],
html[data-qx-shell="app"] body {
  --nta-q: 20px;
  --nta-lh: 1.65;
  --qx-read-stem: 20px;
  --qx-read-opt: 20px;
  --qx-read-sol: 20px;
  --qx-read-lh: 1.65;
}
html[data-qx-shell="app"][data-font-scale="small"],
html[data-qx-shell="app"][data-font-scale="small"] body {
  --nta-q: 17px; --qx-read-stem: 17px; --qx-read-opt: 17px; --qx-read-sol: 17px;
}
html[data-qx-shell="app"][data-font-scale="large"],
html[data-qx-shell="app"][data-font-scale="large"] body {
  --nta-q: 23px; --qx-read-stem: 23px; --qx-read-opt: 23px; --qx-read-sol: 23px;
}
html[data-qx-shell="app"][data-font-scale="xlarge"],
html[data-qx-shell="app"][data-font-scale="xlarge"] body {
  --nta-q: 26px; --qx-read-stem: 26px; --qx-read-opt: 26px; --qx-read-sol: 26px;
}

html[data-qx-shell="app"] body #app-main .eg-test-root .eg-q-stem,
html[data-qx-shell="app"] body #app-main .eg-test-root .eg-opt,
html[data-qx-shell="app"] body #app-main .eg-test-root #egQArea,
html[data-qx-shell="app"] body #app-main .eg-test-root .qx-question-body,
html[data-qx-shell="app"] body #app-main .mtk-test-root .mtk-q-text,
html[data-qx-shell="app"] body #app-main .mtk-test-root .mtk-opt,
html[data-qx-shell="app"] body #app-main .mtk-test-root .mtk-opt-text,
html[data-qx-shell="app"] body #app-main .qzrr-cbt .mtk-q-text,
html[data-qx-shell="app"] body #app-main .qzrr-cbt .mtk-opt,
html[data-qx-shell="app"] body #app-main .qzrr-cbt .mtk-opt-text,
html[data-qx-shell="app"] body #app-main .qx-sol-flow,
html[data-qx-shell="app"] body #app-main #egSol,
html[data-qx-shell="app"] body #app-main .sol-body,
html[data-qx-shell="app"] body #app-main .eg-sol,
html[data-qx-shell="app"] body #app-main .qx-sol-card .qx-sol-flow,
html[data-qx-shell="app"] body #app-main #qaSolReveal .qx-sol-flow,
html[data-qx-shell="app"] body #app-main .allen-practice .mtk-q-text,
html[data-qx-shell="app"] body #app-main .allen-practice .mtk-opt-text {
  font-size: var(--nta-q, 18px) !important;
  line-height: var(--nta-lh, 1.65) !important;
}

html[data-qx-shell="app"] body #app-main .eg-q-stem img,
html[data-qx-shell="app"] body #app-main .mtk-q-text img,
html[data-qx-shell="app"] body #app-main .qx-question-body img,
html[data-qx-shell="app"] body #app-main .qx-diagram-slot img,
html[data-qx-shell="app"] body #app-main #qxDiagramSlot img,
html[data-qx-shell="app"] body #app-main .qx-diagram-seg img,
html[data-qx-shell="app"] body #app-main .qx-sol-flow img,
html[data-qx-shell="app"] body #app-main #egSol img,
html[data-qx-shell="app"] body #app-main .sol-body img,
html[data-qx-shell="app"] body #app-main .qx-sol-fig,
html[data-qx-shell="app"] body #app-main .tlx-qfig img,
html[data-qx-shell="app"] body #app-main .qx-tlx-stem img,
html[data-qx-shell="app"] body #app-main .qx-tlx-qimg {
  max-width: 100% !important;
  width: auto !important;
  height: auto !important;
  max-height: none !important;
  min-height: 0 !important;
  object-fit: contain !important;
  object-position: center center !important;
}
html[data-qx-shell="app"] body #app-main .tlx-qfig img,
html[data-qx-shell="app"] body #app-main .qx-tlx-stem img,
html[data-qx-shell="app"] body #app-main .qx-tlx-qimg {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  max-height: none !important;
}
html[data-qx-shell="app"] body #app-main .eg-opt img,
html[data-qx-shell="app"] body #app-main .mtk-opt img,
html[data-qx-shell="app"] body #app-main #qxOpts img,
html[data-qx-shell="app"] body #app-main .qzrr-opts img,
html[data-qx-shell="app"] body #app-main img.qx-opt-fig-img,
html[data-qx-shell="app"] body #app-main .qx-opt-diagram-slot img,
html[data-qx-shell="app"] body #app-main .qx-prac-opt img {
  max-width: 100% !important;
  width: auto !important;
  height: auto !important;
  max-height: min(42vh, 320px) !important;
  object-fit: contain !important;
}
html[data-qx-shell="app"] body #app-main table img {
  max-width: 100% !important;
  width: auto !important;
  height: auto !important;
  max-height: min(28vh, 220px) !important;
}

@media (max-width: 900px), (pointer: coarse) and (hover: none), (orientation: landscape) and (max-height: 580px) {
  :root, html, html[data-font-scale="medium"], html[data-font-scale="medium"] body {
    --nta-q: 20px;
    --nta-lh: 1.65;
    --qx-read-stem: 20px;
    --qx-read-opt: 20px;
    --qx-read-sol: 20px;
    --qx-read-lh: 1.65;
  }
  html[data-font-scale="small"], html[data-font-scale="small"] body {
    --nta-q: 17px; --qx-read-stem: 17px; --qx-read-opt: 17px; --qx-read-sol: 17px;
  }
  html[data-font-scale="large"], html[data-font-scale="large"] body {
    --nta-q: 23px; --qx-read-stem: 23px; --qx-read-opt: 23px; --qx-read-sol: 23px;
  }
  html[data-font-scale="xlarge"], html[data-font-scale="xlarge"] body {
    --nta-q: 26px; --qx-read-stem: 26px; --qx-read-opt: 26px; --qx-read-sol: 26px;
  }

  html body #app-main .eg-test-root .eg-q-stem,
  html body #app-main .eg-test-root .eg-opt,
  html body #app-main .eg-test-root #egQArea,
  html body #app-main .eg-test-root .qx-question-body,
  html body #app-main .mtk-test-root .mtk-q-text,
  html body #app-main .mtk-test-root .mtk-opt,
  html body #app-main .mtk-test-root .mtk-opt-text,
  html body #app-main .qzrr-cbt .mtk-q-text,
  html body #app-main .qzrr-cbt .mtk-opt,
  html body #app-main .qzrr-cbt .mtk-opt-text,
  html body #app-main .qx-sol-flow,
  html body #app-main #egSol,
  html body #app-main .sol-body,
  html body #app-main .eg-sol,
  html body #app-main .qx-sol-card .qx-sol-flow,
  html body #app-main #qaSolReveal .qx-sol-flow,
  html body #app-main .allen-practice .mtk-q-text,
  html body #app-main .allen-practice .mtk-opt-text,
  html body .eg-test-root .eg-q-stem,
  html body .eg-test-root .eg-opt,
  html body .mtk-test-root .mtk-q-text,
  html body .mtk-test-root .mtk-opt-text,
  html body .qzrr-cbt .mtk-q-text,
  html body .qzrr-cbt .mtk-opt-text {
    font-size: var(--nta-q, 18px) !important;
    line-height: var(--nta-lh, 1.65) !important;
  }

  html body #app-main .eg-q-stem img,
  html body #app-main .mtk-q-text img,
  html body #app-main .qx-question-body img,
  html body #app-main .qx-diagram-slot img,
  html body #app-main #qxDiagramSlot img,
  html body #app-main .qx-diagram-seg img,
  html body #app-main .qx-sol-flow img,
  html body #app-main #egSol img,
  html body #app-main .sol-body img,
  html body #app-main .qx-sol-fig,
  html body #app-main .tlx-qfig img,
  html body #app-main .qx-tlx-stem img,
  html body #app-main .qx-tlx-qimg,
  html body .eg-test-root .eg-q-stem img,
  html body .mtk-test-root .mtk-q-text img,
  html body .qzrr-cbt .mtk-q-text img {
    max-width: 100% !important;
    width: auto !important;
    height: auto !important;
    max-height: none !important;
    min-height: 0 !important;
    object-fit: contain !important;
    object-position: center center !important;
  }
  html body #app-main .tlx-qfig img,
  html body #app-main .qx-tlx-stem img,
  html body #app-main .qx-tlx-qimg,
  html body .tlx-qfig img,
  html body .qx-tlx-stem img,
  html body .qx-tlx-qimg {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    max-height: none !important;
  }
  html body #app-main .eg-opt img,
  html body #app-main .mtk-opt img,
  html body #app-main #qxOpts img,
  html body #app-main .qzrr-opts img,
  html body #app-main img.qx-opt-fig-img,
  html body #app-main .qx-opt-diagram-slot img,
  html body #app-main .qx-prac-opt img,
  html body .eg-test-root .eg-opt img,
  html body .mtk-test-root .mtk-opt img {
    max-width: 100% !important;
    width: auto !important;
    height: auto !important;
    max-height: min(42vh, 320px) !important;
    object-fit: contain !important;
  }
  html body #app-main table img,
  html body .eg-test-root table img,
  html body .mtk-test-root table img {
    max-width: 100% !important;
    width: auto !important;
    height: auto !important;
    max-height: min(28vh, 220px) !important;
  }

  html body #app-main .eg-test-root .eg-q-card,
  html body #app-main .mtk-test-root .mtk-q-wrap,
  html body .eg-test-root .eg-q-card {
    padding-left: 12px !important;
    padding-right: 12px !important;
  }
}

@media (orientation: landscape) and (max-height: 500px) {
  html body #app-main .eg-test-root > .eg-top,
  html body #app-main .eg-test-root .eg-top,
  html body .eg-test-root > .eg-top {
    min-height: 44px !important;
    height: auto !important;
    max-height: none !important;
  }
  html body #app-main .eg-test-root .eg-info-strip,
  html body .eg-test-root .eg-info-strip {
    min-height: 28px !important;
    padding-top: 2px !important;
    padding-bottom: 2px !important;
  }
  html body #app-main .eg-test-root .eg-body,
  html body .eg-test-root .eg-body {
    padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px)) !important;
  }
}

html body .mtk-opt-letter,
html body .qx-opt-circle,
html[data-qx-shell="app"] body .mtk-opt-letter,
html[data-qx-shell="app"] body .qx-opt-circle {
  font-size: 14px !important;
}

/* qxmd361: one reading size for question + solution on website and app.
   Zoom out / Zoom in steps small → medium → large → XL. */
html,
html[data-font-scale="medium"] {
  --nta-q: 20px;
  --nta-lh: 1.65;
  --qx-read-stem: 20px;
  --qx-read-opt: 20px;
  --qx-read-sol: 20px;
  --qx-read-lh: 1.65;
}
html[data-font-scale="small"] {
  --nta-q: 17px; --qx-read-stem: 17px; --qx-read-opt: 17px; --qx-read-sol: 17px;
}
html[data-font-scale="large"] {
  --nta-q: 23px; --qx-read-stem: 23px; --qx-read-opt: 23px; --qx-read-sol: 23px;
}
html[data-font-scale="xlarge"] {
  --nta-q: 26px; --qx-read-stem: 26px; --qx-read-opt: 26px; --qx-read-sol: 26px;
}
html body #app-main .eg-q-stem,
html body #app-main #egQArea,
html body #app-main .mtk-q-text,
html body #app-main .qx-question-body,
html body #app-main .qx-prac-q,
html body #app-main .allen-q-body,
html body #app-main .qx-book-q,
html body #app-main .mtk-opt-text,
html body #app-main .qx-prac-opt-text,
html body #app-main .qx-sol-flow,
html body #app-main .qx-sol-flow p,
html body #app-main .qx-sol-card,
html body #app-main .sol-body,
html body #app-main #egSol,
html body #app-main .eg-sol,
html body .eg-test-root .eg-q-stem,
html body .eg-test-root #egQArea,
html body .mtk-test-root .mtk-q-text,
html body .mtk-test-root .mtk-opt-text,
html body .qzrr-cbt .mtk-q-text,
html body .qzrr-cbt .mtk-opt-text,
html body .qx-sol-flow,
html body .qx-sol-flow p,
html body .qx-book-q {
  font-size: var(--nta-q, 20px) !important;
  line-height: var(--nta-lh, 1.65) !important;
}
html body .qx-sol-card-h,
html body .qx-sol-ans-lab {
  font-size: 13px !important;
  line-height: 1.3 !important;
}

/* Math keeps its own line box so a fraction bar stays on the fraction,
   not a rule through the sentence. */
html body .katex,
html body .qx-sol-flow .katex,
html body .eg-q-stem .katex,
html body .mtk-q-text .katex,
html body .mtk-opt-text .katex,
html body #egQArea .katex,
html body .qx-book-q .katex {
  line-height: 1.2 !important;
}
html body .qx-sol-flow > p,
html body .qx-sol-flow > .qx-sol-p,
html body .sol-body > p,
html body .qx-sol-card .qx-sol-flow p {
  margin: 0 0 14px !important;
  line-height: 1.75 !important;
  border: 0 !important;
  border-bottom: 0 !important;
  box-shadow: none !important;
  background-image: none !important;
  max-width: none !important;
}
html body .qx-sol-card-h {
  border-bottom: 0 !important;
  padding-bottom: 0 !important;
}

/* NTA chip stays 16px on website and app. Figure rules must not stretch it. */
html body #app-main img.qx-nta-chip,
html body #app-main img.qx-paper-exam-logo,
html body #app-main img.qx-card-exam-logo,
html body #app-main .qx-paper-meta img.qx-exam-logo,
html body #app-main .qx-paper-chip img.qx-exam-logo,
html body .eg-q-stem img.qx-nta-chip,
html body .mtk-q-text img.qx-nta-chip,
html body .qx-sol-flow img.qx-nta-chip,
html body .qzrr-cbt img.qx-nta-chip,
html[data-qx-shell="app"] body #app-main img.qx-nta-chip,
html[data-qx-shell="app"] body #app-main img.qx-paper-exam-logo,
html[data-qx-shell="app"] body #app-main .eg-q-stem img.qx-exam-logo,
html[data-qx-shell="app"] body #app-main .mtk-q-text img.qx-exam-logo,
html[data-qx-shell="web"] body #app-main img.qx-nta-chip,
html[data-qx-shell="web"] body #app-main img.qx-paper-exam-logo,
html body #app-main .eg-q-stem img.qx-nta-chip,
html body #app-main .eg-q-stem img.qx-paper-exam-logo,
html body #app-main .eg-q-stem img.qx-card-exam-logo,
html body #app-main .eg-q-stem img.qx-exam-logo,
html body #app-main .mtk-q-text img.qx-nta-chip,
html body #app-main .mtk-q-text img.qx-exam-logo,
html body #app-main .qx-sol-flow img.qx-nta-chip,
html body #app-main .qx-sol-flow img.qx-exam-logo,
html body #app-main .qx-question-body img.qx-exam-logo,
html body #app-main .sol-body img.qx-exam-logo,
html body #app-main #egSol img.qx-exam-logo,
html body .eg-test-root .eg-q-stem img.qx-exam-logo,
html body .mtk-test-root .mtk-q-text img.qx-exam-logo,
html body .qzrr-cbt .mtk-q-text img.qx-exam-logo,
html[data-qx-shell="app"] body #app-main .qx-sol-flow img.qx-exam-logo,
html[data-qx-shell="web"] body #app-main .eg-q-stem img.qx-exam-logo,
html[data-qx-shell="web"] body #app-main .mtk-q-text img.qx-exam-logo {
  width: 16px !important;
  height: 16px !important;
  max-width: 16px !important;
  max-height: 16px !important;
  min-width: 16px !important;
  min-height: 16px !important;
  display: inline-block !important;
  object-fit: contain !important;
  margin: 0 4px 0 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border-radius: 3px !important;
  vertical-align: -3px !important;
  float: none !important;
}

/* Keep each formula one box. display:inline on .katex-html let the fraction
   bar grow to the paragraph and hid the denominator. */
html body #app-main#app-main .qx-sol-card .qx-sol-flow .katex:not(.katex-display > .katex),
html body #app-main#app-main .eg-test-root .eg-q-stem .katex:not(.katex-display > .katex),
html body #app-main#app-main .mtk-test-root .mtk-q-text .katex:not(.katex-display > .katex),
html body #app-main#app-main .mtk-test-root .mtk-opt-text .katex:not(.katex-display > .katex),
html body #egSolPanel#egSolPanel .katex:not(.katex-display > .katex),
html body #qaSolReveal#qaSolReveal .katex:not(.katex-display > .katex) {
  display: inline-block !important;
  white-space: nowrap !important;
  overflow: visible !important;
  max-width: none !important;
  vertical-align: middle !important;
}
html body #app-main#app-main .qx-sol-card .qx-sol-flow .katex:not(.katex-display > .katex) > .katex-html,
html body #app-main#app-main .eg-test-root .eg-q-stem .katex:not(.katex-display > .katex) > .katex-html,
html body #app-main#app-main .mtk-test-root .mtk-q-text .katex:not(.katex-display > .katex) > .katex-html,
html body #app-main#app-main .mtk-test-root .mtk-opt-text .katex:not(.katex-display > .katex) > .katex-html,
html body #egSolPanel#egSolPanel .katex:not(.katex-display > .katex) > .katex-html,
html body #qaSolReveal#qaSolReveal .katex:not(.katex-display > .katex) > .katex-html {
  display: inline-block !important;
  white-space: nowrap !important;
}
html body .qx-sol-ans .katex .katex-mathml,
html body .katex annotation {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  clip: rect(1px, 1px, 1px, 1px) !important;
}

/* qxmd366: display math and solution lines used overflow-y:hidden.
   A fraction's denominator sits under the bar and was cut off, so the bar
   looked like a lone underline. visible+auto is not allowed: the browser
   turns the visible axis into auto and clips again. Both axes stay visible.
   Do not pad the fraction cell — that shoved the denominator into the clip. */
html body #app-main#app-main .eg-test-root .katex-display,
html body #app-main#app-main .mtk-test-root .katex-display,
html body #qaSolReveal#qaSolReveal .katex-display,
html body #egSolPanel#egSolPanel .katex-display,
html body #app-main#app-main .qx-sol-card .katex-display,
html body #app-main#app-main .qx-sol-flow .katex-display {
  overflow-x: visible !important;
  overflow-y: visible !important;
  max-height: none !important;
  height: auto !important;
}
html body #egSolPanel#egSolPanel .qx-sol-flow p,
html body #egSolPanel#egSolPanel .qx-sol-flow .qx-sol-p,
html body #qaSolReveal#qaSolReveal .qx-sol-flow p,
html body #qaSolReveal#qaSolReveal .qx-sol-flow .qx-sol-p,
html body #app-main#app-main .qx-sol-card .qx-sol-flow p,
html body #app-main#app-main .qx-sol-card .qx-sol-flow .qx-sol-p,
html body #app-main#app-main .eg-test-root .eg-q-stem,
html body #app-main#app-main .eg-test-root #egQArea,
html body #app-main#app-main .mtk-test-root .mtk-q-text {
  overflow-x: visible !important;
  overflow-y: visible !important;
  max-height: none !important;
}
html body .katex .mfrac > .vlist-t > .vlist-r > .vlist {
  padding-bottom: 0 !important;
}
html body #egSolPanel#egSolPanel .qx-sol-shortcut-text .katex,
html body #qaSolReveal#qaSolReveal .qx-sol-shortcut-text .katex,
html body #app-main#app-main .qx-sol-shortcut-text .katex,
html body #egSolPanel#egSolPanel .qx-sol-shortcut-text .katex > .katex-html,
html body #qaSolReveal#qaSolReveal .qx-sol-shortcut-text .katex > .katex-html,
html body #app-main#app-main .qx-sol-shortcut-text .katex > .katex-html {
  display: inline-block !important;
  white-space: nowrap !important;
  overflow: visible !important;
  max-width: none !important;
}

/* qxmd367: Full on a phone. The mobile sheet forced the player back to
   position:relative, and the native fullscreen call then left the question
   and the solution outside the visible window. This player fills the screen
   and scrolls inside .eg-body. The card is not a second scrollport
   (visible+auto would clip again). */
html.qx-immersive body.qx-immersive #app-main .eg-test-root.qx-immersive,
html.qx-immersive body.qx-immersive #app-main .mtk-test-root.qx-immersive {
  position: fixed !important;
  inset: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  width: 100% !important;
  height: 100dvh !important;
  max-height: 100dvh !important;
  min-height: 0 !important;
  overflow: hidden !important;
  z-index: 2147483000 !important;
}
html.qx-immersive body.qx-immersive #app-main .eg-test-root.qx-immersive > .eg-body,
html.qx-immersive body.qx-immersive #app-main .mtk-test-root.qx-immersive > .eg-body {
  flex: 1 1 auto !important;
  min-height: 120px !important;
  height: auto !important;
  max-height: none !important;
  overflow-x: auto !important;
  overflow-y: auto !important;
  touch-action: pan-x pan-y !important;
  -webkit-overflow-scrolling: touch !important;
}
html.qx-immersive body.qx-immersive #app-main .eg-test-root.qx-immersive .eg-main,
html.qx-immersive body.qx-immersive #app-main .eg-test-root.qx-immersive .eg-q-card,
html.qx-immersive body.qx-immersive #app-main .mtk-test-root.qx-immersive .eg-main,
html.qx-immersive body.qx-immersive #app-main .mtk-test-root.qx-immersive .eg-q-card {
  overflow-x: visible !important;
  overflow-y: visible !important;
  max-height: none !important;
  height: auto !important;
  flex: 0 0 auto !important;
}
html.qx-immersive body.qx-immersive #app-main .eg-test-root.qx-immersive #egQArea,
html.qx-immersive body.qx-immersive #app-main .eg-test-root.qx-immersive .eg-q-stem,
html.qx-immersive body.qx-immersive #app-main .eg-test-root.qx-immersive #egSolPanel {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  height: auto !important;
  max-height: none !important;
}
html.qx-immersive body.qx-immersive #app-main .eg-test-root.qx-immersive #qxOpts {
  visibility: visible !important;
  opacity: 1 !important;
  height: auto !important;
  max-height: none !important;
}