.GraphMap_map__VdzCO{--x:rgb(124 58 128);--y:var(--subject-color,#396b92);--curve:#26313b;--curve-2:#c2692a;--ink:var(--fg-ink,#1a1a1a);--muted:var(--fg-muted,#65675f);--rule:var(--fg-border,#e2e4e8);container-type:inline-size;width:min(1060px,100%);margin-inline:auto}.GraphMap_wide__0MR1_{margin-block:4px}.GraphMap_legend__AngQE{display:flex;flex-wrap:wrap;gap:8px 22px;margin:0 0 14px;font:500 14px/1.5 var(--font-sans),sans-serif;color:var(--ink)}.GraphMap_legend__AngQE>span{display:inline-flex;align-items:center;gap:7px}.GraphMap_legend__AngQE svg{width:17px;height:17px}.GraphMap_legend__AngQE i{font-family:var(--fg-serif,Georgia),serif}.GraphMap_keyX__5RQp3{color:var(--x)}.GraphMap_keyY__hZWsJ{color:var(--y)}.GraphMap_table__uUeMG{border-top:2px solid var(--ink)}.GraphMap_head__NnJeQ,.GraphMap_row__5Dc3P{display:grid;column-gap:28px}.GraphMap_map__VdzCO[data-cols="3"] :is(.GraphMap_head__NnJeQ,.GraphMap_row__5Dc3P){grid-template-columns:minmax(0,1.1fr) minmax(0,1.3fr) minmax(0,1fr) 156px}.GraphMap_map__VdzCO[data-cols="2"] :is(.GraphMap_head__NnJeQ,.GraphMap_row__5Dc3P){grid-template-columns:minmax(0,1fr) minmax(0,1.5fr) 156px}.GraphMap_map__VdzCO[data-examples] :is(.GraphMap_head__NnJeQ,.GraphMap_row__5Dc3P){grid-template-columns:minmax(0,.9fr) minmax(0,1.25fr) 176px;column-gap:48px}.GraphMap_head__NnJeQ{padding:12px 0;border-bottom:1px solid var(--rule);font:600 12px/1.4 var(--font-sans),sans-serif;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.GraphMap_groupTitle__mEzWQ>span{display:flex;align-items:center;gap:12px;padding:36px 0 4px;font:400 22px/1.3 var(--fg-serif,Georgia),serif;letter-spacing:-.015em;color:var(--ink)}.GraphMap_groupIcon__M8gMt{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--subject-soft,#e8f0f4);color:var(--y)}.GraphMap_groupIcon__M8gMt svg{width:17px;height:17px}.GraphMap_row__5Dc3P{align-items:center;padding:16px 0;border-bottom:1px solid var(--rule)}.GraphMap_group__hG51C>.GraphMap_row__5Dc3P:last-child{border-bottom:0}.GraphMap_map__VdzCO[data-examples] .GraphMap_row__5Dc3P{align-items:start;padding:32px 0}.GraphMap_cell__TRX2R{min-width:0;font:400 15px/1.6 var(--font-sans),sans-serif;color:var(--muted)}.GraphMap_cell__TRX2R:first-child{color:var(--ink)}.GraphMap_map__VdzCO[data-cols="2"] .GraphMap_cell__TRX2R:first-child{font-size:16px}.GraphMap_example__VYySw{min-width:0;font:400 15px/1.6 var(--font-sans),sans-serif;color:var(--ink)}.GraphMap_given__T1I0q{margin:0 0 8px;font-size:16px}.GraphMap_asks__l84qt{margin:0;padding:0;list-style:none}.GraphMap_asks__l84qt>li{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:baseline;column-gap:20px;margin:0}.GraphMap_asks__l84qt>li+li{margin-top:10px}.GraphMap_solution__Q8ahm{padding:1px 10px;border-radius:6px;background:#f1f0ea;font:600 15px/1.6 var(--font-sans),sans-serif;font-variant-numeric:tabular-nums;color:var(--ink);white-space:nowrap}.GraphMap_solution__Q8ahm[data-kind=x]{background:color-mix(in srgb,var(--x) 10%,#fff);color:var(--x)}.GraphMap_solution__Q8ahm[data-kind=y]{background:color-mix(in srgb,var(--y) 10%,#fff);color:var(--y)}.GraphMap_figure__daoA_{border:1px solid var(--rule);border-radius:12px;background:#fff;padding:4px}.GraphMap_graph__sOsBs{display:block;width:100%;height:auto;overflow:visible}@media (prefers-reduced-motion:no-preference){.GraphMap_figure__daoA_{transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.GraphMap_haloX__WslhC,.GraphMap_halo__LTBPi{transform-box:fill-box;transform-origin:center;transition:transform .25s ease}.GraphMap_row__5Dc3P:hover :is(.GraphMap_halo__LTBPi,.GraphMap_haloX__WslhC){transform:scale(1.4)}.GraphMap_row__5Dc3P:hover .GraphMap_figure__daoA_{border-color:color-mix(in srgb,var(--y) 40%,var(--rule));box-shadow:0 6px 16px rgb(15 23 42/.08);transform:translateY(-1px)}}@container (max-width: 720px){.GraphMap_head__NnJeQ{display:none}.GraphMap_map__VdzCO[data-cols] .GraphMap_row__5Dc3P{grid-template-columns:124px minmax(0,1fr);column-gap:16px;row-gap:12px;align-items:start;padding:18px 0}.GraphMap_row__5Dc3P>.GraphMap_cell__TRX2R:first-child{grid-column:1/-1}.GraphMap_row__5Dc3P>.GraphMap_cell__TRX2R:not(:first-child){grid-column:2}.GraphMap_map__VdzCO[data-cols] .GraphMap_row__5Dc3P>.GraphMap_figure__daoA_{grid-column:1;grid-row:2/span 2}.GraphMap_map__VdzCO[data-cols="2"] .GraphMap_row__5Dc3P>.GraphMap_figure__daoA_{grid-row:2}.GraphMap_row__5Dc3P>.GraphMap_cell__TRX2R:not(:first-child):before{content:attr(data-label);display:block;margin-bottom:2px;font:600 12px/1.4 var(--font-sans),sans-serif;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.GraphMap_map__VdzCO[data-examples] .GraphMap_row__5Dc3P{grid-template-columns:minmax(0,1fr);row-gap:16px;padding:26px 0}.GraphMap_map__VdzCO[data-examples][data-cols] .GraphMap_row__5Dc3P>*{grid-column:1;grid-row:auto}.GraphMap_map__VdzCO[data-examples] .GraphMap_example__VYySw:before{content:attr(data-label);display:block;margin-bottom:6px;font:600 12px/1.4 var(--font-sans),sans-serif;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.GraphMap_map__VdzCO[data-examples] .GraphMap_row__5Dc3P>.GraphMap_figure__daoA_{width:min(100%,200px)}.GraphMap_groupTitle__mEzWQ>span{font-size:20px;padding-top:28px}}.GraphMap_axis__aRNlX{stroke:color-mix(in srgb,var(--ink) 42%,transparent);stroke-width:1.1}.GraphMap_axisName__LxeEG{font:italic 11px var(--fg-serif,Georgia),serif;fill:var(--muted)}.GraphMap_curve2__n_7b3,.GraphMap_curve__dR74v,.GraphMap_ghost__EyBNF,.GraphMap_over__Mc0aJ,.GraphMap_under__xvBdl{fill:none;stroke-linecap:round;stroke-linejoin:round}.GraphMap_curve__dR74v{stroke:var(--curve);stroke-width:2.4}.GraphMap_curve2__n_7b3{stroke:var(--curve-2);stroke-width:2.4}.GraphMap_ghost__EyBNF{stroke:var(--curve-2);stroke-width:1.6;stroke-dasharray:3 4;opacity:.45}.GraphMap_level__xMC1M{stroke:var(--curve-2);stroke-width:2;stroke-dasharray:6 4}.GraphMap_under__xvBdl{stroke:color-mix(in srgb,var(--y) 30%,transparent);stroke-width:9}.GraphMap_over__Mc0aJ{stroke:var(--curve);stroke-width:2;stroke-dasharray:6 5}.GraphMap_guideX__s1E8X,.GraphMap_guideY__fcapo{stroke-width:1.6;stroke-dasharray:3 3}.GraphMap_guideX__s1E8X{stroke:var(--x)}.GraphMap_guideY__fcapo{stroke:var(--y)}.GraphMap_dot__hbm61{fill:#fff;stroke:var(--curve);stroke-width:2.2}.GraphMap_dotX__NHd_Q,.GraphMap_dotY__GT5bQ{stroke:#fff;stroke-width:1.5}.GraphMap_dotX__NHd_Q{fill:var(--x)}.GraphMap_dotY__GT5bQ{fill:var(--y)}.GraphMap_halo__LTBPi{fill:color-mix(in srgb,var(--y) 16%,transparent)}.GraphMap_haloX__WslhC{fill:color-mix(in srgb,var(--x) 16%,transparent)}.GraphMap_pickX__LBp1M{fill:var(--x);font-weight:700}.GraphMap_pickY__0n8zO{fill:var(--y);font-weight:700}.GraphMap_badge__KDnXl{fill:var(--curve)}.GraphMap_badgeText__i2mj2{font:700 11px var(--font-sans),sans-serif;fill:#fff}.GraphMap_figLabel__6mAIl{font:600 11.5px var(--font-sans),sans-serif;fill:var(--ink);paint-order:stroke;stroke:#fff;stroke-width:3px}.GraphMap_sliderName__61P8r{font:italic 14px var(--fg-serif,Georgia),serif;fill:var(--ink)}.GraphMap_trackFill__dW91a,.GraphMap_track__F0ON6{stroke-width:4;stroke-linecap:round}.GraphMap_track__F0ON6{stroke:#e2dfd6}.GraphMap_trackFill__dW91a{stroke:var(--curve-2)}.GraphMap_knob__HP3BM{fill:#fff;stroke:var(--curve-2);stroke-width:2.5}.GraphMap_sheet__Cijv_{fill:#fff;stroke:var(--rule)}.GraphMap_gutter__7cVtt{fill:#f3f2ed}.GraphMap_rowRule__IVcug{stroke:var(--rule)}.GraphMap_rowNum__gepiM{font:10.5px var(--font-sans),sans-serif;fill:var(--muted)}.GraphMap_expr__XEQjL{font:15px KaTeX_Main,Times New Roman,serif;fill:var(--ink)}.GraphMap_result__xLkoq{fill:color-mix(in srgb,var(--y) 10%,#fff);stroke:color-mix(in srgb,var(--y) 35%,transparent)}.GraphMap_resultText__0GJqW{font:600 13px var(--font-sans),sans-serif;fill:var(--y)}.GraphMap_unknown__YNL4U{fill:#fff;stroke:var(--muted);stroke-width:1.4;stroke-dasharray:3 2}.GraphMap_unknownText__DCW7Q{font:700 12px var(--font-sans),sans-serif;fill:var(--muted)}.GraphMap_cell__TRX2R .katex{white-space:nowrap}.GraphMap_map__VdzCO[data-cols="2"]:not([data-examples]){width:min(920px,100%)}@container (max-width: 720px){.GraphMap_map__VdzCO:not([data-examples]) :is(.GraphMap_figLabel__6mAIl,.GraphMap_badgeText__i2mj2,.GraphMap_resultText__0GJqW){font-size:15px}.GraphMap_map__VdzCO:not([data-examples]) .GraphMap_axisName__LxeEG{font-size:13px}.GraphMap_map__VdzCO[data-cols="2"] .GraphMap_row__5Dc3P>.GraphMap_cell__TRX2R:not(:first-child):before{content:none}}.page_stack__iboo_{display:grid;gap:24px}.page_rows__fwgKq{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px 28px}.page_parity__6Jm0Z{display:grid;gap:40px}.bb-root{--bb-paper:#f5f6f8;--bb-sheet:#ffffff;--bb-chrome:#f1f3f5;--bb-chrome-strong:#e5e8ec;--bb-ink:#14161c;--bb-ink-2:#4a505c;--bb-ink-3:#6b7280;--bb-rule:#e2e4e8;--bb-rule-strong:#c9cdd4;--bb-accent:#2d4fd8;--bb-accent-hover:#2442bd;--bb-accent-soft:#edf1fe;--bb-accent-fill:#2d4fd8;--bb-accent-fill-hover:#2442bd;--bb-accent-ink:#ffffff;--bb-inverse:#161a24;--bb-inverse-ink:#ffffff;--bb-scrim:rgb(15 18 26/0.44);--bb-review:#c2461f;--bb-review-soft:#fdf0ea;--bb-correct:#047857;--bb-correct-soft:#ecfdf5;--bb-incorrect:#be123c;--bb-incorrect-soft:#fff1f2;--bb-warn:#be123c;--bb-warn-soft:#fff1f2;--bb-hl-violet:#e6dcff;--bb-hl-violet-line:#7c4dde;--bb-hl-blue:#d5e3ff;--bb-hl-blue-line:#3b6fd9;--bb-hl-pink:#ffd8e7;--bb-hl-pink-line:#cf3f7a;--bb-cover:#2946cc;--bb-cover-deep:#18298a;--bb-cover-ink:#f5f7ff;--bb-shadow-color:222 30% 20%;--bb-shadow-sm:0 1px 2px hsl(var(--bb-shadow-color)/0.08);--bb-shadow-md:0 1px 2px hsl(var(--bb-shadow-color)/0.06),0 8px 24px -8px hsl(var(--bb-shadow-color)/0.18);--bb-shadow-lg:0 2px 6px hsl(var(--bb-shadow-color)/0.08),0 24px 60px -16px hsl(var(--bb-shadow-color)/0.32);--bb-font-ui:var(--font-sans,"Inter"),ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--bb-font-reading:var(--bb-font-reading-face,"STIX Two Text"),"STIX Two Text","Iowan Old Style",Georgia,serif;--bb-font-display:var(--font-serif,"Playfair Display"),Georgia,"Times New Roman",serif;--bb-ease:cubic-bezier(0.2,0.8,0.2,1);--bb-spring:cubic-bezier(0.34,1.56,0.64,1);color-scheme:light}.bb-root[data-theme=dark]{--bb-paper:#0e1014;--bb-sheet:#15181e;--bb-chrome:#1e2128;--bb-chrome-strong:#282c35;--bb-ink:#eef0f4;--bb-ink-2:#b6bcc7;--bb-ink-3:#8d94a1;--bb-rule:#2a2e37;--bb-rule-strong:#3e434e;--bb-accent:#8ea8ff;--bb-accent-hover:#a8bcff;--bb-accent-soft:#1b2341;--bb-accent-fill:#3f60ea;--bb-accent-fill-hover:#5473f3;--bb-accent-ink:#ffffff;--bb-inverse:#eef0f4;--bb-inverse-ink:#111318;--bb-scrim:rgb(0 0 0/0.62);--bb-review:#f48c68;--bb-review-soft:#3a2118;--bb-correct:#3fcf98;--bb-correct-soft:#10291f;--bb-incorrect:#fb7f96;--bb-incorrect-soft:#3a1621;--bb-warn:#fb7f96;--bb-warn-soft:#3a1621;--bb-hl-violet:rgb(139 92 246/0.4);--bb-hl-violet-line:#b8a1ff;--bb-hl-blue:rgb(59 130 246/0.38);--bb-hl-blue-line:#92b4ff;--bb-hl-pink:rgb(236 72 153/0.36);--bb-hl-pink-line:#ff8fc2;--bb-cover:#203594;--bb-cover-deep:#111d5c;--bb-cover-ink:#f2f5ff;--bb-shadow-color:225 40% 2%;color-scheme:dark}@media (prefers-color-scheme:dark){.bb-root[data-theme=system]{--bb-paper:#0e1014;--bb-sheet:#15181e;--bb-chrome:#1e2128;--bb-chrome-strong:#282c35;--bb-ink:#eef0f4;--bb-ink-2:#b6bcc7;--bb-ink-3:#8d94a1;--bb-rule:#2a2e37;--bb-rule-strong:#3e434e;--bb-accent:#8ea8ff;--bb-accent-hover:#a8bcff;--bb-accent-soft:#1b2341;--bb-accent-fill:#3f60ea;--bb-accent-fill-hover:#5473f3;--bb-accent-ink:#ffffff;--bb-inverse:#eef0f4;--bb-inverse-ink:#111318;--bb-scrim:rgb(0 0 0/0.62);--bb-review:#f48c68;--bb-review-soft:#3a2118;--bb-correct:#3fcf98;--bb-correct-soft:#10291f;--bb-incorrect:#fb7f96;--bb-incorrect-soft:#3a1621;--bb-warn:#fb7f96;--bb-warn-soft:#3a1621;--bb-hl-violet:rgb(139 92 246/0.4);--bb-hl-violet-line:#b8a1ff;--bb-hl-blue:rgb(59 130 246/0.38);--bb-hl-blue-line:#92b4ff;--bb-hl-pink:rgb(236 72 153/0.36);--bb-hl-pink-line:#ff8fc2;--bb-cover:#203594;--bb-cover-deep:#111d5c;--bb-cover-ink:#f2f5ff;--bb-shadow-color:225 40% 2%;color-scheme:dark}}.bb-overlay{position:fixed;inset:0;z-index:2147483000;display:grid;animation:bb-overlay-in .28s var(--bb-ease,ease) both}.bb-overlay>.bb-root{height:100%}@keyframes bb-overlay-in{0%{opacity:0;transform:scale(.985)}}.bb-root{background:var(--bb-paper);height:100%;min-height:0;color:var(--bb-ink);font-family:var(--bb-font-ui);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:15px;line-height:1.5;position:relative;overflow:hidden}.bb-root[data-screen=results],.bb-root[data-screen=start]{overflow-y:auto}.bb-root *,.bb-root :after,.bb-root :before{box-sizing:border-box}:where(.bb-root) :where(button,input,textarea){font:inherit;color:inherit}:where(.bb-root) :where(button){cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;padding:0}:where(.bb-root) :where(button:disabled){cursor:not-allowed}.bb-root :focus-visible{outline:2px solid var(--bb-accent);outline-offset:2px}:where(.bb-root) :where(h1,h2,h3,p,ol,ul,figure,dl,dd){margin:0}:where(.bb-root) :where(ol,ul){padding:0;list-style:none}:where(.bb-root) :where(h1,h2,h3){text-wrap:balance}.bb-root kbd{border:1px solid var(--bb-rule-strong);background:var(--bb-chrome);min-width:26px;box-shadow:0 1px 0 var(--bb-rule-strong);font:600 12px/1.4 var(--bb-font-ui);text-align:center;border-radius:6px;padding:2px 7px;display:inline-block}.bb-visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;overflow:hidden;position:absolute!important}.bb-eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--bb-accent);font-size:12px;font-weight:700}.bb-button{white-space:nowrap;height:42px;transition:background-color .16s var(--bb-ease),color .16s var(--bb-ease),box-shadow .16s var(--bb-ease),transform .12s var(--bb-ease);border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:0 18px;font-size:15px;font-weight:600;display:inline-flex}.bb-button:active:not(:disabled){transform:scale(.97)}.bb-button--large{height:50px;padding:0 24px;font-size:16px}.bb-button--primary{background:var(--bb-accent-fill);color:var(--bb-accent-ink);box-shadow:0 1px 0 hsl(var(--bb-shadow-color)/.2),inset 0 1px 0 #ffffff24}.bb-button--primary:hover:not(:disabled){background:var(--bb-accent-fill-hover);box-shadow:0 6px 18px -8px var(--bb-accent)}.bb-button--primary svg{transition:transform .18s var(--bb-ease)}.bb-button--primary:hover:not(:disabled) svg:last-child{transform:translate(2px)}.bb-button--primary.is-submit{background:var(--bb-inverse);color:var(--bb-inverse-ink)}.bb-button--primary.is-submit:hover:not(:disabled){background:var(--bb-accent-fill);color:var(--bb-accent-ink)}.bb-button--outline{border:1.5px solid var(--bb-accent);color:var(--bb-accent);background:0 0}.bb-button--outline:hover{background:var(--bb-accent-soft)}.bb-button--quiet{color:var(--bb-ink);background:var(--bb-chrome)}.bb-button--quiet:hover:not(:disabled){background:var(--bb-chrome-strong)}.bb-button:disabled{opacity:.4}.bb-icon-button{width:34px;height:34px;color:var(--bb-ink-2);transition:background-color .14s var(--bb-ease),color .14s var(--bb-ease);border-radius:10px;place-items:center;display:inline-grid}.bb-icon-button:hover{background:var(--bb-chrome);color:var(--bb-ink)}.bb-segmented{background:var(--bb-chrome);border-radius:10px;gap:2px;padding:3px;display:inline-flex}.bb-segmented button{height:30px;color:var(--bb-ink-2);transition:background-color .14s var(--bb-ease),color .14s var(--bb-ease),box-shadow .14s var(--bb-ease);border-radius:8px;align-items:center;gap:6px;padding:0 11px;font-size:13px;font-weight:600;display:inline-flex}.bb-segmented button:hover{color:var(--bb-ink)}.bb-segmented button[aria-checked=true]{background:var(--bb-sheet);color:var(--bb-ink);box-shadow:var(--bb-shadow-sm),0 0 0 1px var(--bb-rule)}.bb-chip,.bb-count-chip{background:var(--bb-chrome);height:22px;color:var(--bb-ink-2);font-variant-numeric:tabular-nums;border-radius:999px;align-items:center;gap:4px;padding:0 8px;font-size:12px;font-weight:700;display:inline-flex}.bb-chip--warn{background:var(--bb-warn-soft);color:var(--bb-warn)}.bb-shell{background:var(--bb-paper);grid-template-rows:auto auto minmax(0,1fr) auto;height:100%;display:grid}.bb-header{z-index:20;background:var(--bb-sheet);grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:16px;min-height:68px;padding:8px 20px;display:grid;position:relative}.bb-header__lead{flex-direction:column;align-items:flex-start;gap:2px;min-width:0;display:flex;position:relative}.bb-header__title{letter-spacing:-.005em;white-space:nowrap;text-overflow:ellipsis;max-width:100%;font-size:15px;font-weight:700;overflow:hidden}.bb-header__title-short{display:none}.bb-directions-trigger{color:var(--bb-accent);transition:background-color .14s var(--bb-ease);border-radius:6px;align-items:center;gap:4px;margin-left:-6px;padding:2px 6px;font-size:13.5px;font-weight:600;display:inline-flex}.bb-directions-trigger:hover{background:var(--bb-accent-soft)}.bb-directions-trigger svg{transition:transform .2s var(--bb-ease)}.bb-directions-trigger.is-open svg{transform:rotate(180deg)}.bb-directions{z-index:30;border:1px solid var(--bb-rule);background:var(--bb-sheet);width:min(720px,100vw - 32px);max-height:min(70vh,640px);box-shadow:var(--bb-shadow-lg);transform-origin:0 0;animation:bb-pop-in .22s var(--bb-ease) both;border-radius:18px;position:absolute;top:calc(100% + 16px);left:-8px;overflow:auto}.bb-directions__body{font-family:var(--bb-font-reading);gap:14px;padding:28px 32px 8px;font-size:17.5px;line-height:1.6;display:grid}.bb-directions__actions{background:linear-gradient(to bottom,transparent,var(--bb-sheet) 30%);justify-content:flex-end;padding:16px 24px 20px;display:flex;position:sticky;bottom:0}.bb-header__center{justify-content:center;display:flex}.bb-header__tools{justify-content:flex-end;align-items:center;gap:4px;display:flex}.bb-tool-button{min-width:64px;color:var(--bb-ink-2);transition:background-color .14s var(--bb-ease),color .14s var(--bb-ease);border-radius:12px;flex-direction:column;align-items:center;gap:2px;padding:6px 8px 5px;display:inline-flex}.bb-tool-button:hover{background:var(--bb-chrome);color:var(--bb-ink)}.bb-tool-button.is-active{background:var(--bb-accent-soft);color:var(--bb-accent)}.bb-tool-button__label{white-space:nowrap;font-size:11.5px;font-weight:600}.bb-menu-anchor{position:relative}.bb-menu{z-index:30;border:1px solid var(--bb-rule);background:var(--bb-sheet);width:268px;box-shadow:var(--bb-shadow-lg);transform-origin:100% 0;animation:bb-pop-in .2s var(--bb-ease) both;border-radius:16px;gap:2px;padding:8px;display:grid;position:absolute;top:calc(100% + 10px);right:0}.bb-menu__section{border-bottom:1px solid var(--bb-rule);gap:8px;margin-bottom:4px;padding:8px 8px 12px;display:grid}.bb-menu__heading{letter-spacing:.1em;text-transform:uppercase;color:var(--bb-ink-3);font-size:11px;font-weight:700}.bb-menu__section .bb-segmented{grid-template-columns:repeat(3,1fr);display:grid}.bb-menu__section .bb-segmented button{justify-content:center}.bb-menu__item{text-align:left;height:42px;color:var(--bb-ink);border-radius:10px;align-items:center;gap:12px;padding:0 10px;font-size:14.5px;font-weight:500;display:flex}.bb-menu__item svg{color:var(--bb-ink-2)}.bb-menu__item:hover{background:var(--bb-chrome)}.bb-menu__item.is-caution{color:var(--bb-review)}.bb-menu__item.is-caution svg{color:currentColor}.bb-menu__state{color:var(--bb-ink-3);margin-left:auto;font-size:12px;font-weight:700}.bb-menu__item.is-active .bb-menu__state{color:var(--bb-accent)}.bb-timer{flex-direction:column;align-items:center;gap:3px;min-width:96px;display:flex}.bb-timer__value{letter-spacing:-.01em;font-variant-numeric:tabular-nums;height:30px;transition:color .3s var(--bb-ease);gap:6px;font-size:24px}.bb-timer__toggle,.bb-timer__value{align-items:center;font-weight:700;display:inline-flex}.bb-timer__toggle{border:1px solid var(--bb-rule-strong);height:20px;color:var(--bb-ink-2);transition:background-color .14s var(--bb-ease),border-color .14s var(--bb-ease);border-radius:999px;gap:4px;padding:0 9px;font-size:11px}.bb-timer__toggle:hover{background:var(--bb-chrome);border-color:var(--bb-ink-3)}.bb-timer.is-hidden .bb-timer__value{color:var(--bb-ink-3)}.bb-timer.is-warning .bb-timer__value{color:var(--bb-warn)}.bb-timer.is-warning:after{content:"Final minutes";letter-spacing:.06em;text-transform:uppercase;color:var(--bb-warn);font-size:11px;font-weight:700}.bb-timer.is-critical .bb-timer__value,.bb-timer.is-critical:after{color:var(--bb-incorrect)}.bb-timer.is-critical .bb-timer__value{animation:bb-pulse 1s ease-in-out infinite}.bb-timer.is-untimed .bb-timer__value{color:var(--bb-ink-2);font-size:20px}.bb-rail{z-index:10;background:var(--bb-sheet);border-bottom:1px solid var(--bb-rule);gap:3px;padding:0 20px 10px}.bb-rail,.bb-rail__segment{display:flex;position:relative}.bb-rail__segment{flex:1;align-items:flex-end;height:12px}.bb-rail__bar{background:repeating-linear-gradient(90deg,var(--bb-rule-strong) 0 5px,transparent 5px 8px);width:100%;height:4px;transition:height .18s var(--bb-ease),background .24s var(--bb-ease);border-radius:999px}.bb-rail__segment:hover .bb-rail__bar{height:7px}.bb-rail__segment.is-answered .bb-rail__bar{background:var(--bb-accent-fill)}.bb-rail__segment.is-current .bb-rail__bar{background:var(--bb-ink);height:8px}.bb-rail__segment.is-current.is-answered .bb-rail__bar{background:linear-gradient(var(--bb-accent),var(--bb-accent)) padding-box,var(--bb-ink);box-shadow:0 0 0 2px var(--bb-ink)}.bb-rail__segment.is-marked:after{content:"";background:var(--bb-review);width:6px;height:6px;animation:bb-pop .32s var(--bb-spring) both;border-radius:50%;position:absolute;top:0;left:50%;transform:translate(-50%)}.bb-rail__segment.is-correct .bb-rail__bar{background:var(--bb-correct)}.bb-rail__segment.is-incorrect .bb-rail__bar{background:var(--bb-incorrect)}.bb-rail__segment.is-omitted .bb-rail__bar{background:repeating-linear-gradient(90deg,var(--bb-ink-3) 0 5px,transparent 5px 8px)}.bb-rail__segment.is-current.is-correct .bb-rail__bar,.bb-rail__segment.is-current.is-incorrect .bb-rail__bar{height:8px;box-shadow:0 0 0 2px var(--bb-ink)}.bb-main{display:flex;overflow:hidden}.bb-main,.bb-stage{min-height:0;position:relative}.bb-stage{flex:1;min-width:0}.bb-question-view{height:100%}.bb-question-view.is-entering-forward .bb-question,.bb-question-view.is-entering-forward .bb-split__pane--left .bb-split__scroll>*{animation:bb-enter-forward .32s var(--bb-ease) both}.bb-question-view.is-entering-backward .bb-question,.bb-question-view.is-entering-backward .bb-split__pane--left .bb-split__scroll>*{animation:bb-enter-backward .32s var(--bb-ease) both}.bb-notice{z-index:25;border:1px solid color-mix(in srgb,var(--bb-warn) 35%,transparent);background:var(--bb-warn-soft);color:var(--bb-warn);box-shadow:var(--bb-shadow-md);animation:bb-drop-in .36s var(--bb-spring) both;border-radius:999px;align-items:center;gap:8px;padding:10px 16px;font-size:14px;font-weight:700;display:inline-flex;position:absolute;top:16px;left:50%;translate:-50%}.bb-split{grid-template-columns:var(--bb-split,50%) 14px minmax(0,1fr);height:100%;display:grid}.bb-split__pane{min-width:0;min-height:0;position:relative}.bb-split__pane--left,.bb-split__pane--right{background:var(--bb-sheet)}.bb-split__scroll{scrollbar-gutter:stable;height:100%;padding:36px clamp(20px,3.4vw,48px) 48px;overflow:auto}.bb-split__pane--left .bb-split__scroll>*{max-width:68ch;margin-inline:auto}.bb-split__divider{cursor:col-resize;touch-action:none;background:var(--bb-sheet);place-items:center;display:grid;position:relative}.bb-split__divider:before{content:"";background:var(--bb-rule-strong);width:1px;transition:background-color .16s var(--bb-ease),width .16s var(--bb-ease);position:absolute;inset:0 auto 0 50%}.bb-split__grip{border:1px solid var(--bb-rule-strong);background:var(--bb-sheet);width:8px;height:48px;box-shadow:var(--bb-shadow-sm);transition:transform .18s var(--bb-spring),border-color .16s var(--bb-ease),background-color .16s var(--bb-ease);border-radius:999px;position:relative}.bb-split__divider:focus-visible:before,.bb-split__divider:hover:before{background:var(--bb-accent-fill)}.bb-split__divider:focus-visible .bb-split__grip,.bb-split__divider:hover .bb-split__grip{border-color:var(--bb-accent);background:var(--bb-accent-fill);transform:scaleY(1.2)}.bb-split__divider:focus-visible{outline:none}.bb-single-column{background:var(--bb-sheet);height:100%;overflow:auto}.bb-single-column .bb-question{max-width:780px;margin-inline:auto;padding:36px clamp(16px,4vw,40px) 56px}.bb-question{gap:22px;display:grid}.bb-question__bar{background:var(--bb-chrome);box-shadow:inset 0 -2px 0 var(--bb-rule-strong);border-radius:12px;align-items:center;gap:10px;padding:5px;display:flex}.bb-question__number{background:var(--bb-inverse);min-width:34px;height:34px;color:var(--bb-inverse-ink);font-variant-numeric:tabular-nums;border-radius:8px;place-items:center;padding:0 8px;font-size:16px;font-weight:700;display:inline-grid}.bb-mark-review{height:34px;color:var(--bb-ink-2);transition:background-color .14s var(--bb-ease),color .14s var(--bb-ease);border-radius:8px;align-items:center;gap:7px;padding:0 10px;font-size:14px;font-weight:600;display:inline-flex}.bb-mark-review:hover:not(:disabled){background:var(--bb-sheet);color:var(--bb-ink)}.bb-mark-review.is-marked{color:var(--bb-review)}.bb-mark-review.is-marked .bb-mark-review__icon{fill:currentColor;animation:bb-pop .36s var(--bb-spring)}.bb-mark-review:disabled{opacity:.55}.bb-eliminator-toggle{border:1.5px solid var(--bb-rule-strong);background:var(--bb-sheet);height:34px;transition:background-color .16s var(--bb-ease),border-color .16s var(--bb-ease),color .16s var(--bb-ease);border-radius:8px;place-items:center;margin-left:auto;padding:0 12px;display:inline-grid}.bb-eliminator-toggle__glyph{letter-spacing:.06em;font-size:13px;font-weight:800;position:relative}.bb-eliminator-toggle__glyph:after{content:"";background:currentColor;height:1.5px;position:absolute;top:50%;left:-3px;right:-3px;transform:rotate(-12deg)}.bb-eliminator-toggle.is-on,.bb-eliminator-toggle:hover{border-color:var(--bb-accent)}.bb-eliminator-toggle.is-on{background:var(--bb-accent-fill);color:var(--bb-accent-ink)}.bb-question__body{gap:22px;display:grid}.bb-question__stem{font-family:var(--bb-font-reading);gap:12px;font-size:18px;line-height:1.6;display:grid}.bb-question__stimulus{gap:16px;display:grid}.bb-choices{gap:12px;display:grid}.bb-choice-row{animation:bb-rise .36s var(--bb-ease) both;animation-delay:calc(var(--i, 0) * 45ms + 60ms);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;display:grid}.bb-choice{border:1.5px solid var(--bb-rule-strong);background:var(--bb-sheet);text-align:left;width:100%;min-height:56px;transition:border-color .16s var(--bb-ease),background-color .16s var(--bb-ease),box-shadow .2s var(--bb-ease),transform .14s var(--bb-ease);border-radius:14px;align-items:center;gap:14px;padding:11px 16px 11px 12px;display:flex}.bb-choice:hover:not(:disabled){border-color:color-mix(in srgb,var(--bb-accent) 55%,var(--bb-rule-strong));box-shadow:var(--bb-shadow-md);transform:translateY(-1px)}.bb-choice:active:not(:disabled){transform:translateY(0) scale(.993)}.bb-choice:disabled{cursor:default}.bb-choice__letter{border:1.5px solid var(--bb-ink-2);width:32px;height:32px;transition:background-color .16s var(--bb-ease),border-color .16s var(--bb-ease),color .16s var(--bb-ease);border-radius:50%;flex:none;place-items:center;font-size:14px;font-weight:700;display:grid}.bb-choice__text{min-width:0;font-family:var(--bb-font-reading);transition:opacity .2s var(--bb-ease);flex:1;font-size:17.5px;line-height:1.45}.bb-choice-row.is-selected .bb-choice{border-color:var(--bb-accent);background:color-mix(in srgb,var(--bb-accent-soft) 55%,var(--bb-sheet));box-shadow:0 0 0 1.5px var(--bb-accent),0 10px 24px -14px var(--bb-accent)}.bb-choice-row.is-selected .bb-choice__letter{border-color:var(--bb-accent);background:var(--bb-accent-fill);color:var(--bb-accent-ink);animation:bb-pop .38s var(--bb-spring)}.bb-choice-row.is-eliminated .bb-choice__text{opacity:.42;text-decoration:line-through;text-decoration-thickness:1.5px}.bb-choice-row.is-eliminated .bb-choice__letter{opacity:.5;position:relative}.bb-choice-row.is-eliminated .bb-choice__letter:after{content:"";background:var(--bb-ink);height:1.5px;position:absolute;top:50%;left:-5px;right:-5px;transform:rotate(-30deg)}.bb-choice-row.is-eliminated .bb-choice{border-style:dashed}.bb-choice-row.is-correct-answer .bb-choice{border-color:var(--bb-correct);background:var(--bb-correct-soft)}.bb-choice-row.is-correct-answer .bb-choice__letter{border-color:var(--bb-correct);background:var(--bb-correct);color:var(--bb-sheet)}.bb-choice-row.is-selected.is-correct-answer .bb-choice{box-shadow:0 0 0 1.5px var(--bb-correct)}.bb-choice-row.is-wrong-pick .bb-choice{border-color:var(--bb-incorrect);background:var(--bb-incorrect-soft);box-shadow:none}.bb-choice-row.is-wrong-pick .bb-choice__letter{border-color:var(--bb-incorrect);background:var(--bb-incorrect);color:var(--bb-sheet)}.bb-choice-eliminator{width:32px;height:32px;color:var(--bb-ink-2);transition:background-color .14s var(--bb-ease),color .14s var(--bb-ease),transform .14s var(--bb-ease);animation:bb-pop .28s var(--bb-spring) both;border-radius:50%;place-items:center;display:grid}.bb-choice-eliminator:hover{background:var(--bb-chrome);color:var(--bb-ink)}.bb-choice-eliminator__letter{border:1.5px solid;border-radius:50%;place-items:center;width:24px;height:24px;font-size:11.5px;font-weight:800;display:grid;position:relative}.bb-choice-eliminator__letter:after{content:"";background:currentColor;height:1.5px;position:absolute;top:50%;left:-4px;right:-4px}.bb-choice-eliminator.is-undo{width:auto;color:var(--bb-accent);text-underline-offset:3px;border-radius:8px;padding:0 6px;font-size:13px;font-weight:700;text-decoration:underline}.bb-reveal-tag{height:26px;font-family:var(--bb-font-ui);border-radius:999px;flex:none;align-items:center;gap:5px;padding:0 10px;font-size:12.5px;font-weight:700;display:inline-flex}.bb-reveal-tag.is-correct{background:var(--bb-correct);color:var(--bb-sheet)}.bb-reveal-tag.is-incorrect{background:var(--bb-incorrect);color:var(--bb-sheet)}p.bb-reveal-tag{justify-self:start}.bb-spr{justify-items:start;gap:10px;display:grid}.bb-spr__label{letter-spacing:.06em;text-transform:uppercase;color:var(--bb-ink-3);font-size:13px;font-weight:700}.bb-spr__field{border-bottom:2px solid var(--bb-ink);background:var(--bb-chrome);width:min(240px,100%);transition:border-color .16s var(--bb-ease),background-color .16s var(--bb-ease),box-shadow .2s var(--bb-ease);border-radius:12px 12px 4px 4px;align-items:center;display:flex;position:relative}.bb-spr__field:focus-within{border-color:var(--bb-accent);background:var(--bb-accent-soft);box-shadow:0 8px 20px -14px var(--bb-accent)}.bb-spr__field.is-correct{border-color:var(--bb-correct);background:var(--bb-correct-soft)}.bb-spr__field.is-incorrect{border-color:var(--bb-incorrect);background:var(--bb-incorrect-soft)}.bb-spr__input{width:100%;height:58px;font-family:var(--bb-font-reading);letter-spacing:.04em;font-variant-numeric:tabular-nums;background:0 0;border:0;padding:0 16px;font-size:28px}.bb-spr__input:focus{outline:none}.bb-spr__count{color:var(--bb-ink-3);font-variant-numeric:tabular-nums;padding-right:12px;font-size:12px;font-weight:700}.bb-spr__preview{align-items:center;gap:14px;min-height:64px;display:flex}.bb-spr__preview-label{color:var(--bb-ink-2);font-size:13.5px;font-weight:600}.bb-spr__preview-value{font-size:20px}.bb-spr__preview-value .bb-tex--display{margin:0}.bb-spr__preview-empty{color:var(--bb-ink-3)}.bb-spr-directions{font-family:var(--bb-font-reading);gap:16px;font-size:16.5px;line-height:1.55;display:grid}.bb-spr-directions__title{font-family:var(--bb-font-ui);font-size:18px;font-weight:700}.bb-spr-directions .bb-list li{margin-bottom:6px}.bb-explanation{background:var(--bb-chrome);box-shadow:inset 3px 0 0 var(--bb-accent);font-family:var(--bb-font-reading);animation:bb-rise .4s .2s var(--bb-ease) both;border-radius:14px;gap:10px;padding:18px 20px;font-size:16.5px;line-height:1.6;display:grid}.bb-explanation__title{font-family:var(--bb-font-ui);letter-spacing:.08em;text-transform:uppercase;color:var(--bb-accent);align-items:center;gap:8px;font-size:13px;font-weight:700;display:flex}.bb-prose{font-family:var(--bb-font-reading)}.bb-passage,.bb-split__pane--left .bb-list,.bb-split__pane--left .bb-prose{font-family:var(--bb-font-reading);font-size:18px;line-height:1.7}.bb-split__pane--left .bb-split__scroll>*+*,.bb-split__pane--left .bb-split__scroll>.bb-annotatable{margin-top:18px}.bb-passage{gap:14px;display:grid}.bb-passage__title{font-size:19px;font-style:italic;font-weight:600}.bb-annotatable .bb-passage__paragraph+.bb-passage__paragraph,.bb-passage__paragraph+.bb-passage__paragraph{margin-top:1em}.bb-passage__verse{white-space:pre-line;line-height:1.75}.bb-passage__verse+.bb-passage__verse{margin-top:1.1em}.bb-passage__attribution{color:var(--bb-ink-2);font-size:15px}.bb-passage__attribution:before{content:"— "}.bb-em-italic{font-style:italic}.bb-em-bold{font-weight:700}.bb-em-underline{text-underline-offset:3px;text-decoration:underline}.bb-blank{border-bottom:1.5px solid;width:4.2em;margin:0 .12em;line-height:1;display:inline-block}.bb-list{gap:6px;padding-left:1.3em;list-style:outside;display:grid}ol.bb-list{list-style:decimal}.bb-list li::marker{color:var(--bb-ink-3)}.bb-display-math{text-align:center;padding:4px 0;font-size:1.05em;overflow-x:auto}.bb-tex--pending{font-family:var(--bb-font-reading);color:var(--bb-ink-2);font-style:italic}.bb-tex--display{display:block}.bb-root .katex{font-size:1.08em}.bb-table{gap:8px;display:grid}.bb-table__scroll{border:1px solid var(--bb-rule-strong);background:var(--bb-sheet);border-radius:12px;overflow-x:auto}.bb-table table{border-collapse:collapse;width:100%;font-family:var(--bb-font-ui);font-variant-numeric:tabular-nums;font-size:15px}.bb-table caption{text-align:left;border-bottom:1px solid var(--bb-rule);padding:12px 14px 10px;font-weight:700}.bb-table td,.bb-table th{text-align:center;border-bottom:1px solid var(--bb-rule);padding:10px 14px}.bb-table th{background:var(--bb-chrome);font-weight:700}.bb-table tr:last-child td{border-bottom:0}.bb-table td+td,.bb-table th+th{border-left:1px solid var(--bb-rule)}.bb-figure{width:100%;color:var(--bb-ink);text-align:center;gap:8px;margin-inline:auto;display:grid}.bb-figure__art{width:100%;max-width:100%}.bb-figure__art svg{width:100%;height:auto;display:block}.bb-figure figcaption{color:var(--bb-ink-2);font-size:14px}.bb-annotatable.is-annotatable{cursor:text}.bb-annotatable ::selection{background:color-mix(in srgb,var(--bb-accent) 28%,transparent)}.bb-mark{color:inherit;cursor:pointer;-webkit-box-decoration-break:clone;box-decoration-break:clone;transition:box-shadow .16s var(--bb-ease),background-color .2s var(--bb-ease);padding:.06em 0;position:relative}.bb-mark.is-first{border-top-left-radius:4px;border-bottom-left-radius:4px;margin-left:-.08em;padding-left:.08em}.bb-mark.is-last{border-top-right-radius:4px;border-bottom-right-radius:4px;margin-right:-.08em;padding-right:.08em}.bb-mark--violet{background:var(--bb-hl-violet);--bb-mark-line:var(--bb-hl-violet-line)}.bb-mark--blue{background:var(--bb-hl-blue);--bb-mark-line:var(--bb-hl-blue-line)}.bb-mark--pink{background:var(--bb-hl-pink);--bb-mark-line:var(--bb-hl-pink-line)}.bb-mark--underlined{text-decoration:underline;-webkit-text-decoration-color:var(--bb-mark-line);text-decoration-color:var(--bb-mark-line);text-underline-offset:4px;text-decoration-thickness:2px}.bb-mark.is-active{box-shadow:0 0 0 2px var(--bb-mark-line)}.bb-mark:hover{box-shadow:0 2px 0 var(--bb-mark-line)}.bb-mark:focus-visible{outline-offset:1px}.bb-mark.is-flashing{animation:bb-flash .9s var(--bb-ease)}.bb-mark__note{background:var(--bb-mark-line);width:17px;height:17px;color:var(--bb-sheet);vertical-align:.35em;border-radius:50%;place-items:center;margin-left:3px;display:inline-grid}.bb-root .bb-mark.bb-mark--violet .bb-mark__note{color:var(--bb-ink)}.bb-floating-card{z-index:60;animation:bb-pop-in .18s var(--bb-ease) both;position:fixed}.bb-annotation-toolbar{background:var(--bb-inverse);color:var(--bb-inverse-ink);box-shadow:var(--bb-shadow-lg);border-radius:14px;align-items:center;gap:4px;padding:6px;display:flex}.bb-annotation-toolbar__swatches{gap:6px;padding:0 6px;display:flex}.bb-swatch{width:26px;height:26px;transition:transform .18s var(--bb-spring),box-shadow .16s var(--bb-ease);border-radius:50%;box-shadow:inset 0 0 0 1px #0000001f}.bb-swatch:hover{transform:scale(1.12)}.bb-swatch[aria-checked=true]{box-shadow:0 0 0 2px var(--bb-inverse),0 0 0 4px var(--bb-inverse-ink)}.bb-swatch--violet{background:#ffd84d}.bb-swatch--blue{background:#7fa8ff}.bb-swatch--pink{background:#ff96bf}.bb-annotation-toolbar__divider{background:#ffffff2e;width:1px;height:22px;margin:0 4px}.bb-toolbar-button{width:34px;height:34px;color:inherit;opacity:.85;transition:background-color .14s var(--bb-ease),opacity .14s var(--bb-ease);border-radius:9px;place-items:center;display:grid;position:relative}.bb-toolbar-button:hover,.bb-toolbar-button[aria-pressed=true]{opacity:1;background:#ffffff24}.bb-toolbar-button.is-destructive:hover{background:color-mix(in srgb,var(--bb-review) 55%,transparent)}.bb-toolbar-button__dot{background:#ffd84d;border-radius:50%;width:7px;height:7px;position:absolute;top:6px;right:6px}.bb-notes-panel{border-left:1px solid var(--bb-rule);background:var(--bb-sheet);width:340px;min-height:0;animation:bb-slide-in .28s var(--bb-ease) both;flex-direction:column;flex:none;display:flex}.bb-notes-panel__header{border-bottom:1px solid var(--bb-rule);align-items:center;gap:10px;padding:16px 12px 14px 20px;display:flex}.bb-notes-panel__header h2{font-size:15px;font-weight:700}.bb-notes-panel__header .bb-icon-button{margin-left:auto}.bb-notes-panel__icon{color:var(--bb-accent)}.bb-notes-panel__empty{text-align:center;color:var(--bb-ink-2);gap:14px;padding:36px 24px;font-size:14px;display:grid}.bb-notes-panel__demo{font-family:var(--bb-font-reading);color:var(--bb-ink);font-size:24px}.bb-notes-panel__demo .bb-mark{cursor:default}.bb-notes-panel__list{align-content:start;gap:12px;padding:16px;display:grid;overflow:auto}.bb-note-card{border:1px solid var(--bb-rule);background:var(--bb-sheet);box-shadow:inset 4px 0 0 var(--bb-note-color,var(--bb-hl-violet));animation:bb-rise .3s var(--bb-ease) both;transition:border-color .16s var(--bb-ease),box-shadow .16s var(--bb-ease);border-radius:14px;gap:8px;padding:12px 12px 10px 16px;display:grid;position:relative}.bb-note-card--violet{--bb-note-color:var(--bb-hl-violet-line)}.bb-note-card--blue{--bb-note-color:var(--bb-hl-blue-line)}.bb-note-card--pink{--bb-note-color:var(--bb-hl-pink-line)}.bb-note-card.is-focused,.bb-note-card:focus-within{border-color:var(--bb-note-color)}.bb-note-card__excerpt{-webkit-line-clamp:3;font-family:var(--bb-font-reading);text-align:left;-webkit-box-orient:vertical;padding-right:28px;font-size:15.5px;font-style:italic;line-height:1.45;display:-webkit-box;overflow:hidden}.bb-note-card__excerpt:hover{text-decoration:underline;-webkit-text-decoration-color:var(--bb-note-color);text-decoration-color:var(--bb-note-color)}.bb-note-card__note{background:var(--bb-chrome);color:var(--bb-ink-3);border-radius:10px;align-items:flex-start;gap:8px;padding:8px 10px;display:flex}.bb-note-card__note svg{flex:none;margin-top:3px}.bb-note-card__note textarea{resize:vertical;width:100%;min-height:40px;color:var(--bb-ink);background:0 0;border:0;font-size:14px;line-height:1.45}.bb-note-card__note textarea:focus{outline:none}.bb-note-card__delete{width:30px;height:30px;position:absolute;top:6px;right:6px}.bb-footer{z-index:20;min-height:70px;padding:10px 20px calc(10px + env(safe-area-inset-bottom, 0px));border-top:1px solid var(--bb-rule);background:var(--bb-sheet);grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:16px;display:grid;position:relative}.bb-footer__student{align-items:center;gap:10px;min-width:0;font-size:14px;font-weight:600;display:flex}.bb-footer__student-name{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.bb-avatar{background:var(--bb-accent-soft);width:34px;height:34px;color:var(--bb-accent);border-radius:50%;flex:none;place-items:center;font-size:13px;font-weight:800;display:grid}.bb-footer__center{justify-content:center;display:flex;position:relative}.bb-navigator-trigger{background:var(--bb-inverse);height:40px;color:var(--bb-inverse-ink);font-variant-numeric:tabular-nums;transition:transform .14s var(--bb-ease),box-shadow .16s var(--bb-ease);border-radius:10px;align-items:center;gap:8px;padding:0 14px 0 18px;font-size:14.5px;font-weight:700;display:inline-flex}.bb-navigator-trigger:hover{box-shadow:var(--bb-shadow-md)}.bb-navigator-trigger:active{transform:scale(.97)}.bb-navigator-trigger__chevron{transition:transform .22s var(--bb-ease)}.bb-navigator-trigger.is-open .bb-navigator-trigger__chevron{transform:rotate(180deg)}.bb-navigator{z-index:40;border:1px solid var(--bb-rule);background:var(--bb-sheet);width:min(540px,100vw - 24px);max-height:min(70vh,560px);box-shadow:var(--bb-shadow-lg);transform-origin:bottom;animation:bb-pop-in .22s var(--bb-ease) both;border-radius:20px;gap:18px;padding:22px 22px 20px;display:grid;position:absolute;bottom:calc(100% + 18px);left:50%;overflow:auto;translate:-50%}.bb-navigator__header{border-bottom:1px solid var(--bb-rule);justify-content:space-between;align-items:flex-start;gap:12px;padding-bottom:14px;display:flex}.bb-navigator__title{font-size:16px;font-weight:700}.bb-navigator__meta{color:var(--bb-ink-2);font-variant-numeric:tabular-nums;margin-top:2px;font-size:13px}.bb-navigator__review{justify-self:center}.bb-legend{color:var(--bb-ink-2);flex-wrap:wrap;gap:8px 18px;font-size:13px;font-weight:500;display:flex}.bb-legend li{align-items:center;gap:7px;display:inline-flex}.bb-legend__pin{color:var(--bb-ink);fill:var(--bb-ink);stroke:var(--bb-sheet)}.bb-legend__flag{color:var(--bb-review);fill:var(--bb-review)}.bb-legend__swatch{border-radius:4px;place-items:center;width:16px;height:16px;display:inline-grid}.bb-legend__swatch.is-unanswered{border:1.5px dashed var(--bb-ink-3)}.bb-legend__swatch.is-answered{background:var(--bb-accent-fill)}.bb-legend__swatch.is-correct{background:var(--bb-correct);color:var(--bb-sheet)}.bb-legend__swatch.is-incorrect{background:var(--bb-incorrect);color:var(--bb-sheet)}.bb-legend__swatch.is-omitted{border:1.5px dashed var(--bb-ink-3);color:var(--bb-ink-3)}.bb-question-grid{grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:18px 10px;padding-top:10px;display:grid}.bb-question-grid--roomy{grid-template-columns:repeat(auto-fill,minmax(54px,1fr));gap:22px 14px}.bb-tile-slot{animation:bb-rise .28s var(--bb-ease) both;animation-delay:calc(var(--i, 0) * 14ms);justify-content:center;display:flex;position:relative}.bb-tile{border:1.5px dashed var(--bb-ink-3);font-variant-numeric:tabular-nums;width:44px;height:44px;color:var(--bb-ink);transition:transform .16s var(--bb-spring),background-color .16s var(--bb-ease),border-color .16s var(--bb-ease),box-shadow .16s var(--bb-ease);border-radius:10px;place-items:center;font-size:15px;font-weight:700;display:grid;position:relative}.bb-question-grid--roomy .bb-tile{border-radius:12px;width:54px;height:54px;font-size:17px}.bb-tile:hover{border-color:var(--bb-accent);box-shadow:var(--bb-shadow-md);transform:translateY(-2px)}.bb-tile.is-answered{border:1.5px solid var(--bb-accent);background:var(--bb-accent-fill);color:var(--bb-accent-ink)}.bb-tile.is-current{box-shadow:0 0 0 2.5px var(--bb-sheet),0 0 0 4.5px var(--bb-ink)}.bb-tile.is-correct{border:1.5px solid var(--bb-correct);background:var(--bb-correct-soft);color:var(--bb-correct)}.bb-tile.is-incorrect{border:1.5px solid var(--bb-incorrect);background:var(--bb-incorrect-soft);color:var(--bb-incorrect)}.bb-tile.is-omitted{border:1.5px dashed var(--bb-ink-3);color:var(--bb-ink-2);background:0 0}.bb-tile__outcome{position:absolute;bottom:3px;right:3px}.bb-tile__pin{z-index:1;color:var(--bb-ink);fill:var(--bb-ink);animation:bb-drop-in .4s var(--bb-spring) both;top:-19px;left:50%;translate:-50%}.bb-tile__flag,.bb-tile__pin{stroke:var(--bb-sheet);position:absolute}.bb-tile__flag{color:var(--bb-review);fill:var(--bb-review);stroke-width:1.5px;top:-6px;right:-5px}.bb-footer__actions{justify-content:flex-end;gap:10px;display:flex}.bb-footer__actions .bb-button{min-width:96px}.bb-review-page{background:var(--bb-paper);height:100%;animation:bb-enter-forward .32s var(--bb-ease) both;padding:48px 20px 64px;overflow:auto}.bb-review-page__intro{text-align:center;gap:8px;max-width:760px;margin:0 auto 28px;display:grid}.bb-review-page__title{letter-spacing:-.02em;font-size:clamp(28px,4vw,38px);font-weight:800}.bb-review-page__intro p{color:var(--bb-ink-2);font-size:16px}.bb-review-card{border:1px solid var(--bb-rule);background:var(--bb-sheet);max-width:760px;box-shadow:var(--bb-shadow-md);border-radius:22px;gap:20px;margin:0 auto;padding:28px;display:grid}.bb-review-card__header{border-bottom:1px solid var(--bb-rule);gap:12px;padding-bottom:18px;display:grid}.bb-review-card__header h3{font-size:18px;font-weight:700}.bb-review-card__counts{flex-wrap:wrap;gap:8px;display:flex}.bb-review-card__counts li{background:var(--bb-chrome);font-variant-numeric:tabular-nums;border-radius:999px;align-items:center;gap:6px;height:30px;padding:0 12px;font-size:13.5px;font-weight:600;display:inline-flex}.bb-review-card__counts .is-answered svg{color:var(--bb-accent)}.bb-review-card__counts .is-attention{background:var(--bb-warn-soft);color:var(--bb-warn)}.bb-review-card__counts .is-marked svg{color:var(--bb-review);fill:var(--bb-review)}.bb-module-switcher{background:var(--bb-chrome);border-radius:12px;gap:4px;padding:4px;display:flex}.bb-module-switcher button{transition:background-color .14s var(--bb-ease),box-shadow .14s var(--bb-ease);border-radius:9px;justify-items:center;padding:4px 12px;line-height:1.2;display:grid}.bb-module-switcher button:hover{background:var(--bb-chrome-strong)}.bb-module-switcher button[aria-current=page]{background:var(--bb-sheet);box-shadow:var(--bb-shadow-sm),0 0 0 1px var(--bb-rule)}.bb-module-switcher__name{font-size:13px;font-weight:700}.bb-module-switcher__score{color:var(--bb-ink-2);font-variant-numeric:tabular-nums;font-size:11.5px;font-weight:600}.bb-dialog-backdrop{z-index:80;background:var(--bb-scrim);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);animation:bb-fade-in .2s var(--bb-ease) both;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.bb-dialog{border:1px solid var(--bb-rule);background:var(--bb-sheet);width:min(460px,100%);max-height:calc(100vh - 32px);box-shadow:var(--bb-shadow-lg);animation:bb-pop-in .26s var(--bb-spring) both;border-radius:22px;gap:16px;padding:22px 24px;display:grid;overflow:auto}.bb-dialog--medium{width:min(620px,100%)}.bb-dialog__header{align-items:center;gap:12px;display:flex}.bb-dialog__icon{background:var(--bb-accent-soft);width:36px;height:36px;color:var(--bb-accent);border-radius:11px;place-items:center;display:grid}.bb-dialog__title{flex:1;font-size:19px;font-weight:700}.bb-dialog__body{color:var(--bb-ink-2);gap:14px;font-size:15px;display:grid}.bb-dialog__actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;padding-top:4px;display:flex}.bb-submit-summary{grid-template-columns:1fr 1fr;gap:10px;display:grid}.bb-submit-summary li{background:var(--bb-chrome);border-radius:14px;gap:2px;padding:14px 16px;font-size:13.5px;font-weight:600;display:grid}.bb-submit-summary strong{color:var(--bb-ink);font-variant-numeric:tabular-nums;font-size:28px;font-weight:800;line-height:1.1}.bb-submit-summary .is-attention{background:var(--bb-warn-soft);color:var(--bb-warn)}.bb-submit-summary .is-attention strong{color:var(--bb-warn)}.bb-shortcuts{gap:4px;display:grid}.bb-shortcuts__row{border-bottom:1px solid var(--bb-rule);color:var(--bb-ink);grid-template-columns:150px 1fr;align-items:center;gap:12px;padding:8px 0;display:grid}.bb-shortcuts__row:last-child{border-bottom:0}.bb-shortcuts__row dt{align-items:center;gap:4px;display:flex}.bb-shortcuts__joiner{color:var(--bb-ink-3);font-size:12px}.bb-floating-panel{z-index:50;border:1px solid var(--bb-rule-strong);background:var(--bb-sheet);max-height:calc(100vh - 150px);box-shadow:var(--bb-shadow-lg);animation:bb-pop-in .24s var(--bb-ease) both;border-radius:18px;flex-direction:column;display:flex;position:fixed;overflow:hidden}.bb-floating-panel__header{border-bottom:1px solid var(--bb-rule);background:var(--bb-chrome);cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;align-items:center;gap:10px;padding:8px 8px 8px 14px;display:flex}.bb-floating-panel__header:active{cursor:grabbing}.bb-floating-panel__header h2{font-size:14.5px;font-weight:700}.bb-floating-panel__icon{color:var(--bb-accent);display:grid}.bb-floating-panel__grip{color:var(--bb-ink-3);margin-right:auto}.bb-floating-panel__body{gap:12px;padding:12px;display:grid;overflow:auto}.bb-floating-panel--flush .bb-floating-panel__body{flex:1;min-height:0;padding:0;display:block;overflow:hidden}.bb-floating-panel{transition:width .26s var(--bb-ease)}.bb-floating-panel__expand{color:var(--bb-ink-2)}.bb-floating-panel__expand[aria-pressed=true]{color:var(--bb-accent)}.bb-tool-layer{display:contents}.bb-tool-layer[hidden]{display:none}.bb-reference-grid{grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:8px;display:grid}.bb-reference-figure{background:var(--bb-paper);text-align:center;border-radius:12px;align-content:start;gap:6px;padding:10px 8px 12px;display:grid}.bb-reference-figure__art svg{width:100%;height:auto;color:var(--bb-ink);display:block}.bb-reference-figure__formulas{gap:2px;font-size:15px;display:grid}.bb-reference-facts{background:var(--bb-accent-soft);font-family:var(--bb-font-reading);border-radius:12px;gap:8px;padding:12px 14px;font-size:15.5px;line-height:1.5;display:grid}.bb-line-reader{z-index:15;pointer-events:none;position:absolute;inset:0}.bb-line-reader__shade{background:color-mix(in srgb,var(--bb-paper) 82%,transparent);-webkit-backdrop-filter:blur(1.5px);backdrop-filter:blur(1.5px);transition:height 90ms linear,top 90ms linear;position:absolute;top:0;left:0;right:0}.bb-line-reader__shade--below{bottom:0}.bb-line-reader__band{border-block:2px solid var(--bb-accent);transition:top 90ms linear;position:absolute;left:0;right:0}.bb-line-reader__close{background:var(--bb-accent-fill);height:26px;color:var(--bb-accent-ink);pointer-events:auto;box-shadow:var(--bb-shadow-md);border-radius:999px;align-items:center;gap:4px;padding:0 10px;font-size:12px;font-weight:700;display:inline-flex;position:absolute;top:-15px;right:16px}.bb-interstitial{text-align:center;place-content:center;justify-items:center;gap:28px;height:100%;padding:32px 16px;display:grid;overflow:auto}.bb-break__ring{width:220px;height:220px;animation:bb-pop-in .5s var(--bb-spring) both;position:relative}.bb-break__ring>svg{width:100%;height:100%;transform:rotate(-90deg)}.bb-break__progress,.bb-break__track{fill:none;stroke-width:10px}.bb-break__track{stroke:var(--bb-rule)}.bb-break__progress{stroke:var(--bb-accent);stroke-linecap:round;transition:stroke-dashoffset .4s linear}.bb-break__clock{color:var(--bb-accent);place-content:center;justify-items:center;gap:2px;display:grid;position:absolute;inset:0}.bb-break__time{letter-spacing:-.02em;color:var(--bb-ink);font-variant-numeric:tabular-nums;font-size:44px;font-weight:800}.bb-break__caption{letter-spacing:.14em;text-transform:uppercase;color:var(--bb-ink-3);font-size:12px;font-weight:700}.bb-break__copy{gap:8px;max-width:460px;display:grid}.bb-break__copy h1{font-family:var(--bb-font-reading);letter-spacing:-.01em;font-size:40px;font-weight:600}.bb-break__copy p:not(.bb-break__next){color:var(--bb-ink-2);font-size:16px}.bb-break__next{color:var(--bb-accent);background:var(--bb-accent-soft);border-radius:999px;justify-self:center;margin-top:6px;padding:6px 14px;font-size:14px;font-weight:700}.bb-section-card{border:1px solid var(--bb-rule);background:var(--bb-sheet);box-shadow:var(--bb-shadow-md);animation:bb-rise .48s .12s var(--bb-ease) both;border-radius:24px;gap:22px;padding:26px;display:grid}.bb-section-card__header{align-items:center;gap:18px;display:flex}.bb-section-card__ring{width:80px;height:80px;color:var(--bb-accent);flex:none;place-items:center;display:grid;position:relative}.bb-section-card__ring .bb-ring{position:absolute;inset:0;transform:rotate(-90deg)}.bb-ring__track,.bb-ring__value{fill:none;stroke-width:7px}.bb-ring__track{stroke:var(--bb-rule)}.bb-ring__value{stroke:var(--bb-accent);stroke-linecap:round;animation:bb-ring-fill .9s .25s var(--bb-ease) both}.bb-section-card__title{letter-spacing:.08em;text-transform:uppercase;color:var(--bb-ink-2);font-size:14px;font-weight:700}.bb-section-card__score strong{font-family:var(--bb-font-reading);font-variant-numeric:tabular-nums;font-size:44px;font-weight:600;line-height:1}.bb-section-card__score span{color:var(--bb-ink-2);font-size:16px}.bb-domains{gap:12px;display:grid}.bb-domain{grid-template-columns:minmax(0,1fr) auto;gap:6px 12px;font-size:14px;display:grid}.bb-domain__name{font-weight:600}.bb-domain__count{color:var(--bb-ink-2);font-variant-numeric:tabular-nums;font-weight:700}.bb-domain__bar{background:var(--bb-chrome);border-radius:999px;grid-column:1/-1;height:8px;overflow:hidden}.bb-domain__bar span{border-radius:inherit;background:var(--bb-accent-fill);transform-origin:0;height:100%;animation:bb-grow-x .8s .3s var(--bb-ease) both;display:block}.bb-module-result{border-top:1px solid var(--bb-rule);gap:12px;padding-top:18px;display:grid}.bb-module-result__header{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px;display:flex}.bb-module-result__header h3{font-size:15px;font-weight:700}.bb-module-result__meta{color:var(--bb-ink-2);font-variant-numeric:tabular-nums;align-items:center;gap:8px;font-size:13px;display:inline-flex}.bb-outcome-strip{flex-wrap:wrap;gap:8px;display:flex}.bb-outcome-tile{font-variant-numeric:tabular-nums;width:40px;height:40px;transition:transform .16s var(--bb-spring),box-shadow .16s var(--bb-ease);border-radius:10px;place-items:center;font-size:14px;font-weight:700;display:grid;position:relative}.bb-outcome-tile:hover{box-shadow:var(--bb-shadow-md);transform:translateY(-2px)}.bb-outcome-tile.is-correct{background:var(--bb-correct-soft);color:var(--bb-correct);box-shadow:inset 0 0 0 1.5px var(--bb-correct)}.bb-outcome-tile.is-incorrect{background:var(--bb-incorrect-soft);color:var(--bb-incorrect);box-shadow:inset 0 0 0 1.5px var(--bb-incorrect)}.bb-outcome-tile.is-omitted{border:1.5px dashed var(--bb-ink-3);color:var(--bb-ink-2)}.bb-outcome-tile__icon{position:absolute;bottom:3px;right:3px}@keyframes bb-rise{0%{opacity:0;transform:translateY(8px)}}@keyframes bb-enter-forward{0%{opacity:0;transform:translate(18px)}}@keyframes bb-enter-backward{0%{opacity:0;transform:translate(-18px)}}@keyframes bb-pop{0%{transform:scale(.7)}60%{transform:scale(1.15)}to{transform:scale(1)}}@keyframes bb-pop-in{0%{opacity:0;transform:scale(.96) translateY(6px)}}@keyframes bb-drop-in{0%{opacity:0;transform:translateY(-8px)}}@keyframes bb-slide-in{0%{opacity:0;transform:translate(24px)}}@keyframes bb-fade-in{0%{opacity:0}}@keyframes bb-pulse{50%{opacity:.55}}@keyframes bb-flash{30%{box-shadow:0 0 0 4px var(--bb-mark-line)}}@keyframes bb-grow-x{0%{transform:scaleX(0)}}@keyframes bb-ring-fill{0%{stroke-dashoffset:213.6px}}@media (prefers-reduced-motion:reduce){.bb-root *,.bb-root :after,.bb-root :before{scroll-behavior:auto!important;transition-duration:1ms!important;animation-duration:1ms!important;animation-iteration-count:1!important;animation-delay:0s!important}}@media (width<=1080px){.bb-tool-button__label{display:none}.bb-tool-button{min-width:40px;padding:9px}}@media (width<=860px){.bb-header{grid-template-columns:minmax(0,1fr) auto auto;gap:8px;min-height:60px;padding:6px 10px 6px 14px}.bb-header__title-full{display:none}.bb-header__title-short{display:inline}.bb-header__title{font-size:14px}.bb-timer{min-width:0}.bb-timer__value{height:26px;font-size:20px}.bb-timer.is-warning:after{display:none}.bb-header__tools{gap:0}.bb-rail{padding:0 12px 8px}.bb-directions{width:auto;position:fixed;top:72px;left:12px;right:12px}.bb-menu{position:fixed;top:64px;right:10px}.bb-split{display:block;overflow:auto}.bb-split__divider{display:none}.bb-split__scroll{height:auto;padding:22px 16px 28px;overflow:visible}.bb-split__pane--left{border-bottom:1px solid var(--bb-rule-strong)}.bb-passage,.bb-split__pane--left .bb-list,.bb-split__pane--left .bb-prose{font-size:17px}.bb-single-column .bb-question{padding-top:22px}.bb-question__stem{font-size:17px}.bb-choice__text{font-size:16.5px}.bb-mark-review span{display:none}.bb-notes-panel{z-index:30;border-top:1px solid var(--bb-rule-strong);width:auto;max-height:62%;box-shadow:var(--bb-shadow-lg);border-left:0;border-radius:20px 20px 0 0;animation-name:bb-rise;position:absolute;inset:auto 0 0}.bb-floating-panel{max-height:70vh;bottom:80px;right:8px;width:auto!important;top:auto!important;left:8px!important}.bb-floating-panel__expand,.bb-floating-panel__grip{display:none}.bb-floating-panel__header h2{margin-right:auto}.bb-floating-panel__header{cursor:default}.bb-footer{min-height:64px;padding:8px 12px calc(8px + env(safe-area-inset-bottom, 0px));grid-template-columns:minmax(0,1fr) auto;gap:10px}.bb-footer__student{display:none}.bb-footer__center{justify-content:flex-start}.bb-navigator-trigger{padding:0 10px 0 14px;font-size:14px}.bb-navigator{width:auto;position:fixed;bottom:76px;left:12px;right:12px;translate:none}.bb-footer__actions .bb-button{min-width:0;padding:0 14px}.bb-footer__actions .bb-button--quiet .bb-button__label{display:none}.bb-review-page{padding:28px 16px 40px}.bb-review-card{padding:20px 16px}.bb-results{padding-inline:16px}.bb-module-switcher button{padding:4px 8px}}@media (width<=480px){.bb-module-switcher__score{display:none}.bb-submit-summary{grid-template-columns:1fr}}.bb-outcome-chip{border-radius:999px;align-items:center;gap:5px;height:28px;margin-left:auto;padding:0 11px;font-size:13px;font-weight:700;display:inline-flex}.bb-outcome-chip.is-correct{background:var(--bb-correct-soft);color:var(--bb-correct)}.bb-outcome-chip.is-incorrect{background:var(--bb-incorrect-soft);color:var(--bb-incorrect)}.bb-outcome-chip.is-omitted{border:1.5px dashed var(--bb-ink-3);color:var(--bb-ink-2)}.bb-screen{min-height:100%;display:grid;grid-template-rows:auto minmax(0,1fr);background:var(--bb-paper)}.bb-topbar{position:sticky;top:0;z-index:5;display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:12px;min-height:60px;padding:10px 20px;background:var(--bb-sheet);border-bottom:1px solid var(--bb-rule)}.bb-topbar__trail{justify-self:end}.bb-brand{display:inline-flex;align-items:center;gap:10px;font-size:15px;font-weight:600;letter-spacing:-.005em;white-space:nowrap}.bb-brand__icon{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;background:var(--bb-accent-fill);color:#fff}.bb-exit-button{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px 0 10px;border-radius:999px;font-size:14px;font-weight:600;color:var(--bb-ink-2);transition:background-color .16s var(--bb-ease),color .16s var(--bb-ease)}.bb-exit-button svg{transition:transform .2s var(--bb-ease)}.bb-exit-button:hover{background:var(--bb-chrome);color:var(--bb-ink)}.bb-exit-button:hover svg{transform:translateX(-3px)}.bb-segmented--icons button{padding:0 9px}.bb-button--xl{height:58px;padding:0 28px;gap:10px;font-size:17px}.bb-start{min-height:100%;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);background:var(--bb-sheet)}.bb-start__cover{position:relative;isolation:isolate;overflow:hidden;display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:32px;padding:20px clamp(24px,4.4vw,64px) 28px clamp(32px,5vw,72px);color:var(--bb-cover-ink);background:radial-gradient(110% 80% at 0 0,rgb(255 255 255/.14) 0,transparent 55%),linear-gradient(155deg,var(--bb-cover) 0,var(--bb-cover-deep) 100%);box-shadow:inset 14px 0 0 rgb(0 0 0/.14),inset 15px 0 0 rgb(255 255 255/.1)}.bb-start__cover:before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;-webkit-mask-image:linear-gradient(160deg,transparent 8%,#000 45%,#000 70%,transparent);mask-image:linear-gradient(160deg,transparent 8%,#000 45%,#000 70%,transparent)}.bb-start[data-texture=grid] .bb-start__cover:before{background-image:linear-gradient(rgb(255 255 255/.09) 1px,transparent 0),linear-gradient(90deg,rgb(255 255 255/.09) 1px,transparent 0);background-size:32px 32px}.bb-start[data-texture=ruled] .bb-start__cover:before{background-image:repeating-linear-gradient(180deg,transparent 0 35px,rgb(255 255 255/.1) 35px 36px)}.bb-start[data-texture=mixed] .bb-start__cover:before{background-image:radial-gradient(rgb(255 255 255/.16) 1.2px,transparent 1.4px);background-size:22px 22px}.bb-start__cover-top{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px}.bb-start__cover .bb-exit-button{color:rgb(255 255 255/.84);margin-left:-10px}.bb-start__cover .bb-exit-button:hover{background:rgb(255 255 255/.13);color:#fff}.bb-start__cover .bb-brand{margin-left:auto;color:var(--bb-cover-ink)}.bb-start__cover .bb-brand__icon{background:rgb(255 255 255/.16);box-shadow:inset 0 0 0 1px rgb(255 255 255/.26)}.bb-start__cover-body{align-self:center;display:grid;gap:18px;max-width:600px;animation:bb-rise .5s var(--bb-ease) both}.bb-start__eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:rgb(255 255 255/.76)}.bb-start__title{font-family:var(--bb-font-display);font-size:clamp(42px,5.4vw,72px);font-weight:500;line-height:1.02;letter-spacing:-.02em;text-wrap:balance}.bb-start__title[data-length=long]{font-size:clamp(36px,3.9vw,56px);line-height:1.06}.bb-start__description{max-width:46ch;font-size:17px;line-height:1.55;color:rgb(255 255 255/.84)}.bb-start__stats{display:flex;flex-wrap:wrap;margin-top:14px;padding-top:24px;border-top:1px solid rgb(255 255 255/.22)}.bb-stat{display:flex;flex-direction:column-reverse;gap:8px;padding-right:32px;margin-right:32px;border-right:1px solid rgb(255 255 255/.2)}.bb-stat:last-child{padding-right:0;margin-right:0;border-right:0}.bb-stat dt{font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:rgb(255 255 255/.72)}.bb-stat dd{display:flex;align-items:flex-end;min-height:56px;margin:0;font-family:var(--bb-font-display);font-size:56px;font-weight:500;line-height:1;font-variant-numeric:lining-nums tabular-nums}.bb-stat dd.bb-stat__word{font-size:38px;padding-bottom:3px}.bb-stat__swap{animation:bb-stat-swap .4s var(--bb-spring) both}@keyframes bb-stat-swap{0%{opacity:0;transform:translateY(12px)}}.bb-start__cover-foot{display:flex;align-items:center;gap:8px;font-size:14px;color:rgb(255 255 255/.74)}.bb-start__cover-foot svg{flex:none}.bb-route{display:grid;margin-top:6px;border-top:1px solid rgb(255 255 255/.18)}.bb-route__stop{display:grid;grid-template-columns:32px minmax(0,1fr) auto;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid rgb(255 255 255/.18);animation:bb-rise .42s var(--bb-ease) both;animation-delay:calc(var(--i, 0) * 50ms + .14s)}.bb-route__marker{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:rgb(255 255 255/.15)}.bb-route__stop.is-break .bb-route__marker{background:transparent;box-shadow:inset 0 0 0 1px rgb(255 255 255/.4)}.bb-route__name{display:grid;min-width:0}.bb-route__section{font-size:15px;font-weight:600}.bb-route__module{font-size:13px;color:rgb(255 255 255/.72)}.bb-route__stop.is-break .bb-route__name{font-weight:500;color:rgb(255 255 255/.84)}.bb-route__meta{font-size:14px;text-align:right;color:rgb(255 255 255/.8);font-variant-numeric:tabular-nums}.bb-route__meta strong{color:#fff;font-weight:700}.bb-route__dot{margin:0 6px;opacity:.6}.bb-start__setup{display:grid;grid-template-rows:auto minmax(0,1fr);min-width:0;padding:20px clamp(24px,4vw,64px) 32px;background:var(--bb-sheet)}.bb-start__setup-top{display:flex;justify-content:flex-end;min-height:40px;align-items:center}.bb-start__setup-body{align-self:center;justify-self:center;width:min(100%,520px);display:grid;gap:22px;padding-block:24px;animation:bb-rise .5s .08s var(--bb-ease) both}.bb-start__heading{font-family:var(--bb-font-display);font-size:30px;font-weight:500;line-height:1.15;letter-spacing:-.01em}.bb-timing{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.bb-timing-tile{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"icon check" "title title" "detail detail" "note note";align-content:start;gap:2px 12px;padding:18px;border:1.5px solid var(--bb-rule-strong);border-radius:18px;background:var(--bb-sheet);cursor:pointer;transition:border-color .16s var(--bb-ease),background-color .16s var(--bb-ease),box-shadow .22s var(--bb-ease),transform .14s var(--bb-ease)}.bb-timing-tile input{position:absolute;opacity:0;pointer-events:none}.bb-timing-tile:hover{border-color:color-mix(in srgb,var(--bb-accent) 50%,var(--bb-rule-strong));box-shadow:var(--bb-shadow-md);transform:translateY(-1px)}.bb-timing-tile:active{transform:scale(.985)}.bb-timing-tile:has(input:focus-visible){outline:2px solid var(--bb-accent);outline-offset:3px}.bb-timing-tile.is-selected{border-color:var(--bb-accent);background:color-mix(in srgb,var(--bb-accent-soft) 64%,var(--bb-sheet));box-shadow:0 0 0 1.5px var(--bb-accent),0 16px 32px -20px var(--bb-accent)}.bb-timing-tile__icon{grid-area:icon;width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:var(--bb-chrome);color:var(--bb-ink-2);transition:background-color .2s var(--bb-ease),color .2s var(--bb-ease),transform .3s var(--bb-spring)}.bb-timing-tile.is-selected .bb-timing-tile__icon{background:var(--bb-accent-fill);color:var(--bb-accent-ink);transform:rotate(-6deg)}.bb-timing-tile__check{grid-area:check;position:relative;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--bb-rule-strong);transition:background-color .18s var(--bb-ease),border-color .18s var(--bb-ease)}.bb-timing-tile.is-selected .bb-timing-tile__check{border-color:var(--bb-accent-fill);background:var(--bb-accent-fill);animation:bb-pop .36s var(--bb-spring)}.bb-timing-tile.is-selected .bb-timing-tile__check:after{content:"";position:absolute;left:7px;top:3.5px;width:6px;height:11px;border:solid #fff;border-width:0 2.2px 2.2px 0;transform:rotate(45deg)}.bb-timing-tile__title{grid-area:title;margin-top:14px;font-size:19px;font-weight:700;letter-spacing:-.01em}.bb-timing-tile__detail{grid-area:detail;font-size:15px;font-weight:600;color:var(--bb-ink);font-variant-numeric:tabular-nums}.bb-timing-tile.is-selected .bb-timing-tile__detail{color:var(--bb-accent)}.bb-timing-tile__note{grid-area:note;margin-top:4px;font-size:14px;line-height:1.45;color:var(--bb-ink-2)}.bb-extra-time{display:grid;grid-template-rows:0fr;margin-top:-22px;opacity:0;transition:grid-template-rows .3s var(--bb-ease),margin-top .3s var(--bb-ease),opacity .22s var(--bb-ease)}.bb-extra-time[data-open=true]{grid-template-rows:1fr;margin-top:-6px;opacity:1}.bb-extra-time__inner{min-height:0;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:2px}.bb-extra-time__label{font-size:14px;font-weight:600;color:var(--bb-ink-2)}.bb-extra-time .bb-segmented button{height:32px;padding:0 14px;font-size:14px}.bb-start__tools{display:grid;gap:12px;padding-top:20px;border-top:1px solid var(--bb-rule)}.bb-start__tools h3{font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--bb-ink-3)}.bb-start__tools ul{display:flex;flex-wrap:wrap;gap:8px}.bb-tool-chip{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 13px 0 11px;border-radius:999px;background:var(--bb-chrome);font-size:14px;font-weight:500;color:var(--bb-ink-2)}.bb-tool-chip svg{color:var(--bb-ink)}.bb-start__launch{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:22px;padding-top:6px}.bb-start__summary{display:grid;gap:2px}.bb-start__summary strong{font-family:var(--bb-font-display);font-size:28px;font-weight:500;line-height:1.1;white-space:nowrap}.bb-start__summary span{font-size:14px;color:var(--bb-ink-2);white-space:nowrap}.bb-start__cta{width:100%}.bb-start__fine-print{margin-top:-12px;text-align:right;font-size:13.5px;color:var(--bb-ink-3)}.bb-saved-card{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;padding:14px 14px 14px 16px;border:1px solid var(--bb-rule);border-radius:16px;background:var(--bb-paper);animation:bb-rise .4s var(--bb-ease) both}.bb-saved-card.is-in-progress{border-color:color-mix(in srgb,var(--bb-accent) 38%,var(--bb-rule));background:var(--bb-accent-soft)}.bb-saved-card__icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--bb-sheet);color:var(--bb-accent);box-shadow:var(--bb-shadow-sm),0 0 0 1px var(--bb-rule)}.bb-saved-card__text{display:grid;gap:2px;min-width:0}.bb-saved-card h2{font-size:15.5px;font-weight:700}.bb-saved-card p{font-size:13.5px;color:var(--bb-ink-2)}.bb-results{width:100%;max-width:1040px;margin:0 auto;padding:clamp(28px,6vh,56px) 24px 64px;display:grid;align-content:start;gap:24px}.bb-results__hero{position:relative;isolation:isolate;overflow:hidden;display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:clamp(20px,4vw,40px);padding:clamp(22px,4vw,36px);border-radius:28px;color:var(--bb-cover-ink);background:radial-gradient(110% 90% at 0 0,rgb(255 255 255/.14) 0,transparent 55%),linear-gradient(155deg,var(--bb-cover) 0,var(--bb-cover-deep) 100%);box-shadow:var(--bb-shadow-lg);animation:bb-rise .45s var(--bb-ease) both}.bb-results__hero:before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgb(255 255 255/.07) 1px,transparent 0),linear-gradient(90deg,rgb(255 255 255/.07) 1px,transparent 0);background-size:32px 32px;-webkit-mask-image:linear-gradient(100deg,transparent 30%,#000);mask-image:linear-gradient(100deg,transparent 30%,#000)}.bb-results__score{position:relative;width:148px;height:148px;display:grid;place-items:center}.bb-results__score .bb-ring{position:absolute;inset:0;transform:rotate(-90deg)}.bb-results__score .bb-ring__track{stroke:rgb(255 255 255/.2);stroke-width:8px}.bb-results__score .bb-ring__value{stroke:#fff;stroke-width:8px;animation:bb-ring-fill-lg 1s .25s var(--bb-ease) both}@keyframes bb-ring-fill-lg{0%{stroke-dashoffset:326.73px}}.bb-results__score-value{font-family:var(--bb-font-display);font-size:50px;font-weight:500;line-height:1;font-variant-numeric:lining-nums tabular-nums}.bb-results__score-value small{font-size:22px;opacity:.74}.bb-results__summary{display:grid;gap:8px;min-width:0}.bb-results__summary .bb-eyebrow{color:rgb(255 255 255/.76)}.bb-results__summary h1{font-family:var(--bb-font-display);font-size:clamp(32px,4vw,50px);font-weight:500;line-height:1.05;letter-spacing:-.015em}.bb-results__line{display:flex;flex-wrap:wrap;gap:4px 0;font-size:15px;color:rgb(255 255 255/.82)}.bb-results__line>*+:before{content:"·";margin:0 10px;opacity:.6}.bb-results__line strong{color:#fff;font-weight:700}.bb-results__actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.bb-results__hero .bb-button--primary{background:#fff;color:var(--bb-cover-deep);box-shadow:0 8px 22px -12px rgb(0 0 0/.5)}.bb-results__hero .bb-button--primary:hover:not(:disabled){background:#eef1ff;box-shadow:0 10px 26px -12px rgb(0 0 0/.55)}.bb-results__hero .bb-button--quiet{background:rgb(255 255 255/.14);color:#fff}.bb-results__hero .bb-button--quiet:hover:not(:disabled){background:rgb(255 255 255/.22)}.bb-results__sections{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));align-items:start;gap:20px}.bb-section-card__icon{flex:none;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--bb-accent-soft);color:var(--bb-accent)}.bb-root .bb-section-card__title{margin-right:auto;font-size:18px;font-weight:700;letter-spacing:-.005em;text-transform:none;color:var(--bb-ink)}.bb-section-card__score{display:flex;align-items:baseline;gap:2px}.bb-root .bb-section-card__score strong{font-family:var(--bb-font-display);font-size:32px;font-weight:500}.bb-outcome-counts{display:flex;flex-wrap:wrap;gap:6px}.bb-outcome-counts li{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:999px;font-size:14px;font-weight:600;font-variant-numeric:tabular-nums}.bb-outcome-counts .is-correct{background:var(--bb-correct-soft);color:var(--bb-correct)}.bb-outcome-counts .is-incorrect{background:var(--bb-incorrect-soft);color:var(--bb-incorrect)}.bb-outcome-counts .is-omitted{box-shadow:inset 0 0 0 1.5px var(--bb-rule-strong);color:var(--bb-ink-2)}.bb-root .bb-module-result__header[hidden]{display:none}.bb-root .bb-section-card__header{flex-wrap:wrap;gap:12px 14px}.bb-review-badge{padding:6px 14px;border-radius:999px;background:var(--bb-accent-soft);font-size:14px;font-weight:700;color:var(--bb-accent)}.bb-passage__paragraph{white-space:pre-line}.bb-atom--display{display:block;margin:10px 0;text-align:center}.bb-atom--display .katex-display{margin:0}.bb-choice-reason{grid-column:1/-1;margin:0 4px 6px 58px;padding-left:12px;border-left:2px solid var(--bb-rule-strong);font-family:var(--bb-font-reading);font-size:15.5px;line-height:1.5;color:var(--bb-ink-2)}.bb-choice-row.is-wrong-pick .bb-choice-reason{border-left-color:var(--bb-incorrect)}.bb-choice-row.is-correct-answer .bb-choice-reason{border-left-color:var(--bb-correct)}.bb-custom{color:#14161c;font-family:var(--bb-font-ui)}.bb-custom-missing{color:var(--bb-ink-3);font-style:italic}.bb-timer__caption{font-size:15px;font-weight:600}@media (width <= 900px){.bb-start{grid-template-columns:minmax(0,1fr)}.bb-start__cover{gap:20px;padding:12px 16px 20px 26px;box-shadow:inset 8px 0 0 rgb(0 0 0/.14),inset 9px 0 0 rgb(255 255 255/.1)}.bb-start__title{font-size:clamp(34px,9vw,50px)}.bb-start__stats{margin-top:6px;padding-top:18px}.bb-stat{padding-right:20px;margin-right:20px}.bb-stat dd{min-height:44px;font-size:44px}.bb-stat dd.bb-stat__word{font-size:30px}.bb-start__setup{padding:8px 16px 32px}.bb-start__setup-body{padding-block:8px}.bb-start__heading{font-size:26px}.bb-route__stop{grid-template-columns:32px minmax(0,1fr);row-gap:2px}.bb-route__meta{grid-column:2;text-align:left}.bb-results{padding-inline:16px}}@media (width <= 560px){.bb-timing{grid-template-columns:minmax(0,1fr)}.bb-timing-tile{grid-template-columns:auto minmax(0,1fr) auto;grid-template-areas:"icon title check" "icon detail check" "icon note note";column-gap:14px;padding:14px 16px}.bb-timing-tile__title{margin-top:0}.bb-timing-tile__check{align-self:center}.bb-start__launch{grid-template-columns:minmax(0,1fr);gap:12px}.bb-start__summary{grid-auto-flow:column;justify-content:start;align-items:baseline;gap:10px}.bb-results__hero{grid-template-columns:minmax(0,1fr);justify-items:start}.bb-results__score{width:116px;height:116px}.bb-results__score-value{font-size:40px}.bb-saved-card{grid-template-columns:auto minmax(0,1fr)}.bb-saved-card .bb-button{grid-column:1/-1}.bb-topbar{padding:8px 12px}.bb-topbar .bb-brand{display:none}.bb-topbar{grid-template-columns:minmax(0,1fr) auto}}