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[data-walk-body]){justify-content:center!important}:is(.math-diagram-shell:has([data-pyr-sphere]) [role=tablist],.math-diagram-shell:has([data-cap-cone]) [role=tablist],.math-diagram-shell:has([data-sph-mass]) [role=tablist],.math-diagram-shell:has([data-cone-top]) [role=tablist],.math-diagram-shell:has([data-cyl-hem]) [role=tablist],.math-diagram-shell:has([data-mens-walk]) [role=tablist]){z-index:3;position:relative}@container wa-angles-shell (max-width:42rem){:is(.math-diagram-shell[data-wa-angles-side]:has([data-pyr-sphere]) [data-wa-angles-body],.math-diagram-shell[data-wa-angles-side]:has([data-cap-cone]) [data-wa-angles-body]){flex-direction:column!important;height:100%!important;min-height:0!important;overflow:hidden!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-pyr-sphere]) [data-walk-body],.math-diagram-shell[data-wa-angles-side]:has([data-cap-cone]) [data-walk-body]){flex:auto!important;justify-content:flex-start!important;min-height:0!important;overflow:hidden!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-pyr-sphere]) [data-pyr-sphere],.math-diagram-shell[data-wa-angles-side]:has([data-cap-cone]) [data-cap-cone]){flex:auto!important;justify-content:flex-start!important;height:100%!important;min-height:0!important;overflow:hidden!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-pyr-sphere]) [data-wa-angles-working],.math-diagram-shell[data-wa-angles-side]:has([data-cap-cone]) [data-wa-angles-working]){flex:0 auto!important;width:100%!important;max-width:100%!important;height:auto!important;min-height:0!important;max-height:46%!important;overflow:hidden auto!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-pyr-sphere]) [data-wa-angles-working] .angle-walk-working,.math-diagram-shell[data-wa-angles-side]:has([data-cap-cone]) [data-wa-angles-working] .angle-walk-working){height:auto!important;max-height:none!important;overflow:visible!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-pyr-sphere]) .angle-walk-working__step:not([data-walk-step-current]),.math-diagram-shell[data-wa-angles-side]:has([data-cap-cone]) .angle-walk-working__step:not([data-walk-step-current]),.math-diagram-shell[data-wa-angles-side]:has([data-sph-mass]) .angle-walk-working__step:not([data-walk-step-current]),.math-diagram-shell[data-wa-angles-side]:has([data-cone-top]) .angle-walk-working__step:not([data-walk-step-current]),.math-diagram-shell[data-wa-angles-side]:has([data-cyl-hem]) .angle-walk-working__step:not([data-walk-step-current]),.math-diagram-shell[data-wa-angles-side]:has([data-mens-walk]) .angle-walk-working__step:not([data-walk-step-current])){display:none!important}}@media (min-width:1024px){.lesson-player .question-board--trio[data-example-board="1"][data-board-fit="1"],.lesson-practice-stage .question-board--trio[data-example-board="1"][data-board-fit="1"],.lesson-player .question-board--wide-fig.question-board--trio[data-example-board="1"][data-board-fit="1"],.lesson-practice-stage .question-board--wide-fig.question-board--trio[data-example-board="1"][data-board-fit="1"]{grid-template-columns:minmax(16rem,.62fr) minmax(0,1fr)!important}}.question-board--trio[data-example-board="1"]:not(:has([data-hint-pane])) .question-board__opts{display:none!important}.question-board--trio[data-example-board="1"] [data-wa-angles-body]{align-items:flex-start!important}.question-board--trio[data-example-board="1"] [data-walk-body]{flex:none!important;width:auto!important;max-width:none!important}.question-board--trio[data-example-board="1"] [data-wa-angles-working]{flex:auto!important;width:auto!important;min-width:0!important;max-width:none!important;overflow:visible!important}.question-board--trio[data-example-board="1"] .angle-walk-working,.question-board--trio[data-example-board="1"] [data-wa-angles-working] .angle-walk-working{height:auto!important;max-height:none!important;overflow:visible!important}@container wa-angles-shell (min-width:43rem){:is(.math-diagram-shell[data-wa-angles-side]:has([data-s1-neg1-seq]) [data-walk-body],.math-diagram-shell[data-wa-angles-side]:has([data-num-pat]) [data-walk-body]){flex:none!important;width:auto!important;max-width:none!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-s1-neg1-seq]) [data-wa-angles-working],.math-diagram-shell[data-wa-angles-side]:has([data-num-pat]) [data-wa-angles-working]){flex:auto!important;width:auto!important;min-width:0!important;max-width:none!important;overflow:visible!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-s1-neg1-seq]) [data-wa-angles-working] .angle-walk-working,.math-diagram-shell[data-wa-angles-side]:has([data-num-pat]) [data-wa-angles-working] .angle-walk-working){height:auto!important;max-height:none!important;overflow:visible!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-pattern-strip=fan]) [data-walk-body],.math-diagram-shell[data-wa-angles-side]:has([data-pattern-strip=tri]) [data-walk-body]){flex:auto!important;width:auto!important;min-width:0!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-pattern-strip=fan]) [data-wa-angles-working],.math-diagram-shell[data-wa-angles-side]:has([data-pattern-strip=tri]) [data-wa-angles-working]){flex:0 17rem!important;width:17rem!important;max-width:17rem!important}.math-diagram-shell[data-wa-angles-side]:has([data-sq-minus]) [data-walk-body]{flex:auto!important;width:auto!important;min-width:0!important}.math-diagram-shell[data-wa-angles-side]:has([data-sq-minus]) [data-wa-angles-working]{flex:0 17rem!important;width:17rem!important;max-width:17rem!important}}@container wa-angles-shell (max-width:42rem){:is(.math-diagram-shell[data-wa-angles-side]:has([data-s1-neg1-seq]) [data-wa-angles-body],.math-diagram-shell[data-wa-angles-side]:has([data-num-pat]) [data-wa-angles-body]){flex-direction:column!important}:is(.math-diagram-shell[data-wa-angles-side]:has([data-s1-neg1-seq]) [data-wa-angles-working],.math-diagram-shell[data-wa-angles-side]:has([data-num-pat]) [data-wa-angles-working]){flex:none!important;width:100%!important;max-width:100%!important}[data-s1-neg1-seq] .np-seq-row{justify-content:flex-start!important;gap:.1rem!important;width:100%!important;max-width:100%!important;overflow-x:auto!important}[data-s1-neg1-seq] .np-seq-row>span{gap:.15rem!important}[data-s1-neg1-seq] .np-disc-in{min-width:1.45rem!important;height:1.45rem!important;padding-left:.15rem!important;padding-right:.15rem!important;font-size:12px!important}[data-s1-neg1-seq] .np-hop{padding:0 .15rem!important;font-size:10px!important}[data-s1-neg1-seq] .np-times-cell,[data-s1-neg1-seq] .np-times-label{min-width:1.45rem!important;height:1.45rem!important;padding-left:.15rem!important;padding-right:.15rem!important;font-size:12px!important}[data-num-pat] .np-disc-row{flex-wrap:wrap!important;justify-content:center!important;gap:.35rem .15rem!important;width:100%!important;max-width:100%!important;overflow:visible!important}[data-num-pat] .np-disc-chip{gap:.15rem!important}[data-num-pat] .np-disc-row .np-disc-in{min-width:2.15rem!important;height:2.15rem!important;padding-left:.2rem!important;padding-right:.2rem!important;font-size:14px!important}[data-num-pat] .np-disc-row .np-hop{padding:.05rem .22rem!important;font-size:11px!important}[data-num-pat] .np-disc-row[data-second-gaps] .np-second-arrow,[data-num-pat] .np-disc-row[data-second-gaps] .np-disc-chip .h-8{height:1.65rem!important}}@media (max-width:639px){.lesson-player--practice .question-one-screen:has([data-num-pat]){height:auto!important;max-height:100%!important;overflow:hidden 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.question-board--trio:has([data-num-pat])){flex:none!important;grid-template-rows:auto auto auto!important;align-self:start!important;height:auto!important;min-height:min-content!important;max-height:none!important;overflow:visible!important}:is(.lesson-player--practice .question-board--trio:has([data-num-pat]) .question-board__viz,.lesson-player--practice .question-board--trio:has([data-num-pat]) .question-board__text,.lesson-player--practice .question-board--trio:has([data-num-pat]) .question-board__opts,.lesson-practice-stage .question-board--trio:has([data-num-pat]) .question-board__viz,.lesson-practice-stage .question-board--trio:has([data-num-pat]) .question-board__text,.lesson-practice-stage .question-board--trio:has([data-num-pat]) .question-board__opts){align-self:start!important;height:auto!important;min-height:min-content!important;max-height:none!important;overflow:visible!important}}[data-num-pat] .np-disc-row[data-second-gaps]{column-gap:0!important}[data-num-pat] [data-machine-label]{font-size:1.05rem!important;line-height:1.2!important}[data-num-pat] [data-machine-tile]{box-sizing:border-box!important;color:#fff!important;background:#0006!important;border:2px solid #ffffff47!important;border-radius:1rem!important;min-width:3.75rem!important;height:3.75rem!important;min-height:3.75rem!important;font-size:1.5rem!important;line-height:1!important}[data-num-pat] [data-machine-tile=hot]{background:#0ea5e952!important;border-color:#7dd3fc!important}[data-num-pat] [data-machine-tile=ask]{color:#fde68a!important;background:#f59e0b29!important;border-style:dashed!important;border-color:#fcd34d!important}[data-num-pat] .np-machine-arrow{height:3.75rem!important;font-size:1.35rem!important}@media (min-width:640px){[data-num-pat] [data-machine-label]{font-size:1.15rem!important}[data-num-pat] [data-machine-tile]{min-width:5.5rem!important;height:5.75rem!important;min-height:5.75rem!important;font-size:2rem!important}[data-num-pat] .np-machine-arrow{height:5.75rem!important;font-size:1.85rem!important}}[data-num-pat] [data-sq-minus]{max-width:100%!important;font-size:.95rem!important;line-height:1.25!important}[data-num-pat] [data-sq-cards]{display:none!important}@container wa-angles-shell (max-width:42rem){[data-num-pat] [data-sq-table]{display:none!important}[data-num-pat] [data-sq-cards]{flex-wrap:wrap!important;justify-content:flex-start!important;gap:.4rem!important;display:flex!important}[data-num-pat] [data-sq-card]{text-align:center!important;border:1px solid #ffffff2e!important;border-radius:.6rem!important;flex:46%!important;min-width:8.5rem!important;padding:.35rem .45rem!important}}[data-num-pat] [data-sq-minus] th,[data-num-pat] [data-sq-minus] td{color:#fff!important;white-space:nowrap!important;border:1px solid #ffffff2e!important;padding:.28rem .35rem!important;font-weight:700!important}[data-num-pat] [data-sq-minus] [data-sq-label]{color:#ffffffb8!important;text-align:left!important;font-weight:600!important}[data-num-pat] [data-sq-minus] tr[data-sq-hot="1"],[data-num-pat] [data-sq-minus] [data-sq-rule][data-sq-hot="1"]{background:#0ea5e938!important}[data-num-pat] [data-sq-minus] [data-sq-ask="1"]{color:#fde68a!important;background:#f59e0b29!important}@media (min-width:640px){[data-num-pat] [data-sq-minus]{font-size:1.15rem!important}}[data-button-stack]{--btn-cols:2;--btn-gap:.75rem;container:button-stack/inline-size}@container wa-angles-shell (min-width:43rem){[data-button-stack][data-button-cols=family]{--btn-cols:4}}[data-button-stack] .np-disc-row .np-disc-in,[data-button-stack] .np-disc-row .np-hop,[data-button-stack] .np-btn-gap .np-hop,[data-button-stack] [data-button-table]{font-size:calc(var(--btn-font) * (100cqi - (var(--btn-cols) - 1) * var(--btn-gap)) / var(--btn-cols) / var(--btn-svg-w))!important}[data-button-stack] .np-disc-row .np-disc-in{min-width:1.6em!important;height:auto!important;min-height:1.6em!important;padding:.08em .28em!important}[data-button-stack] .np-disc-row .np-hop,[data-button-stack] .np-btn-gap .np-hop{padding:.06em .28em!important}.angle-walk-working{background:#0c0a1cf0;border:1px solid #a78bfa61;border-radius:.75rem;width:100%;max-width:100%;max-height:14rem;padding:.5rem .7rem .6rem;animation:.18s ease-out lesson-step-in;overflow:auto;box-shadow:0 10px 28px #00000061}:is(.lesson-player .question-board--trio:has([data-s3-cf-fr]) .angle-walk-working,.lesson-practice-stage .question-board--trio:has([data-s3-cf-fr]) .angle-walk-working){max-height:none!important;overflow:visible!important}.lesson-player .question-board--trio:has([data-s3-cf-fr]) .math-diagram-shell{overflow:visible!important}.lesson-practice-stage .question-board--trio:has([data-s3-cf-fr]) .math-diagram-shell{overflow:visible!important}.lesson-player .question-board--trio:has([data-s3-cf-fr]) .question-board__viz{overflow:visible!important}.lesson-practice-stage .question-board--trio:has([data-s3-cf-fr]) .question-board__viz{overflow:visible!important}.lesson-player .lesson-stage__cell--viz:has([data-s3-cf-fr]){overflow:visible!important}.lesson-practice-stage .question-board__viz:has([data-s3-cf-fr]){overflow:visible!important}.angle-walk-working__kicker{letter-spacing:.06em;text-transform:uppercase;color:#c4b5fdd1;margin:0 0 .2rem;font-size:10px;font-weight:700}.angle-walk-working__body{color:#f8fafceb;white-space:normal;overflow-wrap:break-word;width:100%;max-width:100%;font-size:12.5px;line-height:1.45;display:block}.angle-walk-working__body+.angle-walk-working__body{margin-top:.4rem}.angle-walk-working .math-latex{vertical-align:baseline;white-space:nowrap;max-width:100%;display:inline-block}.angle-walk-working .math-latex .katex,.angle-walk-working .math-latex .katex-html{display:inline-block;white-space:nowrap!important;line-height:normal!important;overflow:visible!important}.angle-walk-working .math-latex .katex .msupsub,.angle-walk-working .math-latex .katex .mfrac,.angle-walk-working .math-latex .katex .sqrt,.angle-walk-working .math-latex .katex .hide-tail{white-space:nowrap!important;display:inline-block!important}.angle-walk-working .math-latex .katex .hide-tail{position:relative!important;overflow:hidden!important}.angle-walk-working .math-latex .mfrac .base{white-space:nowrap!important}[data-angle-walk] .math-diagram-footer,[data-eq-chain-walk]>p,[data-s3-pf-walk]>p{white-space:normal;overflow-wrap:break-word;max-width:100%}[data-eq-chain-walk] .katex-display,[data-eq-chain-walk] .math-display,[data-s3-pf-walk] .katex-display,[data-s3-pf-walk] .math-display{white-space:normal;max-width:100%;overflow:hidden visible}[data-pf-frac] .math-text,[data-pf-frac] .katex,[data-pf-frac] .katex-html{white-space:nowrap!important;overflow-wrap:normal!important;word-break:normal!important}[data-ns-cuboid] .ns-cuboid-label,[data-ns-cuboid] .ns-cuboid-math .katex,[data-ns-cuboid] .ns-cuboid-math .katex-html{white-space:nowrap!important;max-width:none!important;line-height:normal!important;display:inline-block!important}[data-ns-cuboid] .ns-cuboid-math{white-space:nowrap!important;flex-direction:row!important;align-items:baseline!important;max-width:none!important;display:inline-flex!important}[data-ns-cuboid] .ns-cuboid-math .katex .hide-tail{display:inline-block!important;position:relative!important;overflow:hidden!important}.lesson-player .question-board__viz [data-ns-cuboid] .katex .hide-tail svg,.lesson-player .lesson-stage__cell--viz [data-ns-cuboid] .katex .hide-tail svg,[data-ns-cuboid] .ns-cuboid-math .katex .hide-tail svg,[data-ns-cuboid] .walk-op-bubble .katex .hide-tail svg{width:100%!important;height:inherit!important;fill:currentColor!important;max-width:none!important;max-height:none!important;margin:0!important;display:block!important;position:absolute!important}.math-diagram-shell[data-angle-walk] .math-diagram-footer{z-index:2;border-top:none;margin-top:-.15rem;padding:0 .2rem .35rem;position:relative}.practice-board-viz-container{flex-direction:column!important;flex:auto!important;gap:.5rem!important;height:100%!important;min-height:0!important;display:flex!important}.practice-board-viz-container--with-working{flex-direction:row!important;gap:.5rem!important}.practice-board-viz-container--with-working .practice-board-diagram{flex-direction:column!important;flex:auto!important;min-width:0!important;min-height:0!important;display:flex!important}.practice-board-diagram{min-height:14rem!important;overflow:auto!important}.practice-board-diagram .math-diagram-shell[data-angle-walk="1"],.practice-board-diagram .math-diagram-shell[data-walk-figure-only="1"]{height:auto!important;min-height:14rem!important}.practice-board-diagram .math-diagram-shell [data-wa-angles-working]{display:none!important}.practice-board-diagram [data-walk-body]{min-height:12rem!important;overflow:auto!important}.practice-board-diagram [data-wa-angles-body]>svg,.practice-board-diagram [data-walk-body]>svg,.practice-board-diagram [data-walk-body]>*>svg{width:100%!important;height:auto!important;min-height:12rem!important;max-height:min(52vh,24rem)!important}.practice-board-working-pane .math-diagram-header,.practice-board-working-pane [data-walk-body],.practice-board-working-pane [data-wa-angles-body]>svg{display:none!important}.practice-board-working-pane [data-wa-angles-working]{flex:auto!important;width:100%!important;min-width:0!important;max-width:none!important;display:flex!important}.practice-board-working-pane .angle-walk-working{flex:none!important;max-height:none!important;overflow:visible!important}.practice-board-viz-container:not(.practice-board-viz-container--with-working) .practice-board-diagram{flex-direction:column!important;flex:auto!important;min-height:0!important;display:flex!important}.practice-board-working-pane{flex-direction:column!important;flex:none!important;gap:.5rem!important;width:15.5rem!important;min-width:15.5rem!important;max-width:15.5rem!important;min-height:0!important;padding:.5rem!important;display:flex!important;overflow:visible auto!important}.question-board[data-s1-angles="1"][data-s1-solved="1"] .mcq-options,.question-board[data-s1-angles="1"][data-s1-solved="1"] .mcq-action-bar{display:none!important}.question-board[data-s1-angles="1"][data-s1-solved="1"] .question-board__opts,.question-board[data-s1-angles="1"][data-s1-solved="1"] 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