.pt-facts{gap:14px;margin-bottom:20px;list-style:none;display:grid}.pt-facts li{grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;display:grid}.pt-facts strong{font:var(--type-headline);display:block}.pt-facts .k{font:var(--type-footnote);color:var(--ink-secondary);display:block}.pt-start>*+*{margin-top:16px}.pt-status{font:var(--type-callout);color:var(--ink)}html:not(.js) .pt-js,.js .pt-nojs{display:none}.pt{background:var(--bg);width:100%;max-width:none;height:100%;max-height:none;color:var(--ink);overscroll-behavior:contain;border:0;margin:0;padding:0;position:fixed;inset:0}.pt[open]{grid-template-rows:auto minmax(0,1fr) auto;display:grid}.pt::backdrop{background:var(--bg)}html:has(.pt[open]){overflow:hidden}.pt-bar{background:var(--surface);border-bottom:1px solid var(--border);padding-top:env(safe-area-inset-top)}.pt-bar-row{grid-template-columns:1fr auto 1fr;align-items:center;gap:8px;min-height:56px;display:grid}.pt-icon-btn{width:44px;height:44px;color:var(--ink-secondary);cursor:pointer;background:0 0;border:0;border-radius:50%;justify-self:start;place-items:center;margin-left:-10px;display:inline-grid}.pt-icon-btn:hover{background:var(--surface-sunken);color:var(--ink)}.pt-icon-btn svg{width:22px;height:22px}.pt-timer{font:var(--type-number-m);font-variant-numeric:tabular-nums;color:var(--ink);align-items:center;gap:6px;display:inline-flex}.pt-timer svg{width:18px;height:18px;color:var(--ink-secondary)}.pt-timer[data-low],.pt-timer[data-low] svg{color:var(--wrong)}.pt-pill{cursor:pointer;border:1px solid var(--border-strong);border-radius:var(--radius-pill);background:var(--surface);min-height:40px;color:var(--ink);font:var(--type-subheadline-emphasis);justify-self:end;align-items:center;gap:6px;padding:0 14px;display:inline-flex}.pt-pill:hover{background:var(--surface-sunken)}.pt-pill svg{width:16px;height:16px}.pt-track{background:var(--surface-sunken);height:4px}.pt-track span{background:var(--accent);width:0;height:100%;transition:width var(--duration-base) var(--ease-standard);display:block}.pt-body{overscroll-behavior:contain;padding-block:20px 40px;overflow-y:auto}@media (width>=768px){.pt-body{padding-block:40px 64px}}.pt-n{font:var(--type-footnote-emphasis);color:var(--ink-secondary);margin-bottom:8px;display:block}.pt .q-stem:focus,.pt-score-v:focus,#pt-review-h:focus{outline:none}.pt-foot{background:var(--surface);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom)}.pt-foot-row{grid-template-columns:auto minmax(0,1fr) minmax(0,1fr);gap:10px;padding-block:10px;display:grid}@media (width>=640px){.pt-foot-row{grid-template-columns:auto 1fr auto auto}.pt-foot-row .pt-flag{grid-column:1}.pt-foot-row [data-pt-prev]{grid-column:3}}.pt-foot .btn{min-width:0}.pt-flag[aria-pressed=true]{background:var(--caution-soft);border-color:var(--caution);color:var(--ink);box-shadow:0 2px 0 var(--caution)}.pt-flag[aria-pressed=true] svg{color:var(--caution);fill:currentColor}.pt-cells{grid-template-columns:repeat(auto-fill,minmax(52px,1fr));gap:8px;list-style:none;display:grid}.pt-cell{cursor:pointer;border:1px solid var(--border-strong);border-radius:var(--radius-s);background:var(--surface);width:100%;min-height:48px;color:var(--ink);font:var(--type-number-s);font-variant-numeric:tabular-nums;place-items:center;display:grid;position:relative}.pt-cell:hover{border-color:var(--ink-secondary)}.pt-cell[data-answered]{background:var(--accent-soft);border-color:var(--accent)}.pt-cell[aria-current=true]{outline:2px solid var(--ink);outline-offset:1px}.pt-cell-flag{width:13px;height:13px;color:var(--caution);fill:currentColor;display:none;position:absolute;top:3px;right:3px}.pt-cell[data-flagged] .pt-cell-flag{display:block}.pt-legend{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.pt-key{border:1px solid var(--border-strong);background:var(--surface);border-radius:4px;width:16px;height:16px;margin-left:8px;display:inline-block}.pt-key:first-child{margin-left:0}.pt-key.is-answered{background:var(--accent-soft);border-color:var(--accent)}.pt-key-flag{width:14px;height:14px;color:var(--caution);fill:currentColor;margin-left:8px}.pt-results{gap:32px;display:grid}.pt-score{gap:8px;display:grid}.pt-score-v{font:800 clamp(40px, 11vw, 56px)/1.05 var(--font-rounded);font-variant-numeric:tabular-nums;letter-spacing:-.02em}.pt-verdict{font:var(--type-headline)}.pt-score[data-pass=true] .pt-verdict{color:var(--correct)}.pt-score[data-pass=false] .pt-verdict{color:var(--wrong)}.pt-meter{background:var(--surface-sunken);border-radius:99px;height:12px;margin:34px 0 10px;position:relative}.pt-meter-fill{border-radius:inherit;background:var(--wrong);width:0;position:absolute;inset:0 auto 0 0}.pt-score[data-pass=true] .pt-meter-fill{background:var(--correct)}.pt-meter-line{background:var(--ink);width:2px;margin-left:-1px;position:absolute;top:-8px;bottom:-8px}.pt-meter-line span{white-space:nowrap;font:var(--type-footnote-emphasis);color:var(--ink);position:absolute;bottom:calc(100% + 4px);left:50%;transform:translate(-50%)}.pt-chapters{list-style:none;display:grid}.pt-ch{border-bottom:1px solid var(--border);grid-template-columns:minmax(0,1fr) auto;align-items:baseline;gap:8px 16px;padding-block:12px;display:grid}.pt-ch-t{font:var(--type-headline);text-decoration:none}.pt-ch-t:hover{text-decoration:underline}.pt-ch-n{font:var(--type-number-s);font-variant-numeric:tabular-nums;color:var(--ink-secondary);white-space:nowrap}.pt-ch-bar{background:var(--surface-sunken);border-radius:99px;grid-column:1/-1;height:6px;overflow:hidden}.pt-ch-bar span{border-radius:inherit;background:var(--accent);height:100%;display:block}.pt-app{box-shadow:none;align-items:center;gap:16px;display:grid}.pt-app>:last-child{justify-self:start}@media (width>=640px){.pt-app{grid-template-columns:auto 1fr auto}}.pt-filter{flex-wrap:wrap;gap:8px;display:flex}.pt-chip{cursor:pointer;border:1px solid var(--border-strong);border-radius:var(--radius-pill);background:var(--surface);min-height:40px;color:var(--ink);font:var(--type-subheadline-emphasis);align-items:center;gap:6px;padding:0 14px;display:inline-flex}.pt-chip[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.pt-chip span{font-family:var(--font-rounded);font-variant-numeric:tabular-nums}.pt-answers{gap:16px;list-style:none;display:grid}.pt-answer-ids{align-items:center;gap:8px;display:inline-flex}.pt-flagged{background:var(--caution-soft);color:var(--ink)}.pt-flagged svg{color:var(--caution);fill:currentColor}@media (width<=559px){.pt-answer.q-card{padding:16px 14px}.pt-answer .feedback{padding:14px}}.pt-answer .opt{cursor:default;min-height:0}.pt-answer .opt-text{padding-top:2px}.pt-answer .opt-note:empty{display:none}.pt-answer .feedback[data-result=blank]{background:var(--surface-sunken)}.pt-answer .feedback[data-result=blank] .verdict-badge{background:var(--ink-tertiary);color:var(--surface)}.pt-answer .feedback[data-result=blank] .ico-check{display:none}@media (prefers-reduced-motion:reduce){.pt-track span{transition:none}}.course-hero[data-astro-cid-zkylmh2s] .stamp[data-astro-cid-zkylmh2s]{font:var(--type-footnote-emphasis);color:var(--correct);align-items:center;gap:6px;margin:0;display:flex}.course-hero[data-astro-cid-zkylmh2s] .stamp[data-astro-cid-zkylmh2s] svg{flex:none;width:16px;height:16px}.chapter-list[data-astro-cid-zkylmh2s]{gap:10px;list-style:none;display:grid}@media (width>=900px){.chapter-list[data-astro-cid-zkylmh2s]{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 20px}}.chapter-row[data-astro-cid-zkylmh2s]{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);min-height:68px;color:var(--ink);grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;padding:12px 16px;text-decoration:none;display:grid}.chapter-row[data-astro-cid-zkylmh2s]:hover{border-color:var(--accent);text-decoration:none}.chapter-row[data-astro-cid-zkylmh2s] .n[data-astro-cid-zkylmh2s]{background:var(--accent-soft);width:36px;height:36px;color:var(--accent);font:700 15px/1 var(--font-rounded);border-radius:50%;place-items:center;display:grid}.chapter-row[data-astro-cid-zkylmh2s] .t[data-astro-cid-zkylmh2s]{font:var(--type-headline);display:block}.chapter-row[data-astro-cid-zkylmh2s] .d[data-astro-cid-zkylmh2s]{font:var(--type-footnote);color:var(--ink-secondary);margin-top:2px;display:block}.chapter-row[data-astro-cid-zkylmh2s] .chev{width:18px;height:18px;color:var(--ink-tertiary)}.cta-panel[data-astro-cid-zkylmh2s] .cta-app-icon{width:72px;height:72px;box-shadow:0 10px 28px #00000059}@media (width>=900px){.cta-panel[data-astro-cid-zkylmh2s] .cta-app-icon{width:96px;height:96px}}