.ds1-page{min-width:320px;min-height:100dvh;color:var(--text-primary);background:var(--bg-color);margin:0;overflow:hidden}.ds1-deck{--ds1-page-pad:clamp(1rem, 2.4vw, 2.5rem);min-height:100dvh;color:var(--text-primary);background:var(--bg-color);font-family:var(--font-heading);grid-template-rows:auto minmax(0,1fr) auto;display:grid}.ds1-deck.is-presenter{grid-template-rows:auto auto minmax(0,1fr) auto}.ds1-deck:not(.is-presenter) .ds1-livebar{display:none}.ds1-deck *,.ds1-deck :before,.ds1-deck :after{box-sizing:border-box}.ds1-deck button,.ds1-deck input,.ds1-deck a{font:inherit}.ds1-topbar,.ds1-footer{z-index:20;padding-inline:var(--ds1-page-pad);background:var(--bg-color);position:relative}.ds1-topbar{justify-content:space-between;align-items:center;gap:var(--spacing-sm);border-bottom:var(--border-light);min-height:3.5rem;display:flex}.ds1-identity,.ds1-top-actions,.ds1-footer-row,.ds1-nav-controls,.ds1-livebar>div,.ds1-live-controls,.ds1-live-controls form,.ds1-live-controls [data-live-session]{align-items:center;display:flex}.ds1-identity{min-width:0;color:var(--text-secondary);font-size:var(--text-sm);gap:.75rem;font-weight:500}.ds1-course-title{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.ds1-kicker,.ds1-eyebrow{color:var(--text-fine);font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.12em;text-transform:uppercase;margin:0;font-weight:700}.ds1-separator{background:var(--color-mid-gray);width:1px;height:1.1rem}.ds1-join-chip{border-left:var(--border-light);color:var(--text-secondary);font-size:var(--text-xs);white-space:nowrap;margin-left:.4rem;padding-left:1rem}.ds1-join-chip b{color:var(--text-primary);font-family:var(--font-mono)}.ds1-current-time{color:var(--text-secondary);font-family:var(--font-mono);font-size:var(--text-sm);font-variant-numeric:tabular-nums;pointer-events:none;white-space:nowrap;line-height:1;position:absolute;left:50%;transform:translate(-50%)}.ds1-top-actions{justify-content:flex-end;gap:.5rem}.ds1-text-control{border-radius:var(--radius-sm);min-height:2.25rem;color:var(--text-secondary);cursor:pointer;font-size:var(--text-xs);background:0 0;border:0;align-items:center;padding:.45rem .75rem;font-weight:600;text-decoration:none;display:inline-flex}.ds1-text-control:hover,.ds1-text-control:focus-visible{color:var(--text-primary);background:var(--bg-surface-alt);outline:none}.ds1-sync-status{color:var(--text-muted);font-size:var(--text-xs);white-space:nowrap}.ds1-sync-status.is-connected{color:var(--color-success)}.ds1-livebar{z-index:19;min-height:2.9rem;padding:.45rem var(--ds1-page-pad);border-bottom:var(--border-light);color:var(--text-secondary);background:var(--bg-surface);font-size:var(--text-xs);justify-content:space-between;align-items:center;gap:1rem;display:flex;position:relative}.ds1-livebar>div,.ds1-live-controls,.ds1-live-controls form,.ds1-live-controls [data-live-session]{gap:.55rem}.ds1-livebar [hidden],.ds1-poll-actions[hidden],.ds1-current-poll-controls[hidden],.ds1-current-control-mode[hidden]{display:none}.ds1-livebar a{color:var(--accent-primary)}.ds1-live-controls{justify-content:flex-end;min-width:0}.ds1-live-controls input,.ds1-live-controls button,.ds1-poll-actions button,.ds1-current-control-mode button{border:var(--border-light);border-radius:var(--radius-control);min-height:2rem;color:var(--text-primary);background:var(--bg-surface);padding:.3rem .6rem}.ds1-live-controls input{width:9rem}.ds1-live-controls button,.ds1-poll-actions button,.ds1-current-control-mode button{cursor:pointer;font-weight:600}.ds1-live-controls button:hover,.ds1-live-controls button:focus-visible,.ds1-poll-actions button:hover,.ds1-poll-actions button:focus-visible,.ds1-current-control-mode button:hover,.ds1-current-control-mode button:focus-visible{box-shadow:var(--shadow-focus);outline:none}.ds1-workspace{min-height:0;padding:clamp(.6rem, 1.5vw, 1.25rem) var(--ds1-page-pad);display:grid}.ds1-deck.is-presenter .ds1-workspace{grid-template-columns:minmax(0,1fr) minmax(18rem,25vw);gap:clamp(.75rem,1.5vw,1.5rem)}.ds1-stage{border:var(--border-light);border-radius:var(--radius-md);background:linear-gradient(to right, color-mix(in srgb, var(--color-light-gray) 35%, transparent) 1px, transparent 1px), linear-gradient(to bottom, color-mix(in srgb, var(--color-light-gray) 35%, transparent) 1px, transparent 1px), var(--bg-surface);min-width:0;min-height:0;box-shadow:var(--shadow-sm);background-size:3rem 3rem;position:relative}.ds1-frame{padding:clamp(1rem,2.3vw,2.4rem);display:none;position:absolute;inset:0;overflow:auto}.ds1-frame.is-active,.ds1-preview-frame{align-items:center;display:flex}.ds1-frame-content{width:min(100%,74rem);margin-inline:auto;position:relative}.ds1-centred{text-align:center}.ds1-frame h1,.ds1-frame h2,.ds1-overview h2,.ds1-presenter-panel h2{letter-spacing:0;margin:0}.ds1-frame h1{max-width:21ch;margin-inline:auto;font-size:clamp(3rem,7.3vw,7.5rem);line-height:.98}.ds1-frame h2{max-width:32ch;margin-top:clamp(.55rem,1.3vw,1rem);font-size:clamp(2rem,4.35vw,4.8rem);line-height:1.04}.ds1-centred h2{margin-inline:auto}.ds1-lede,.ds1-context,.ds1-small,.ds1-device-free,.ds1-question-line,.ds1-boundary,.ds1-answer{font-family:var(--font-body);line-height:1.42}.ds1-lede{max-width:39ch;color:var(--text-secondary);margin:clamp(1rem,2.4vw,2.2rem) auto 0;font-size:clamp(1.35rem,2.4vw,2.5rem)}.ds1-context{max-width:58rem;color:var(--text-secondary);margin:.9rem 0;font-size:clamp(1.05rem,1.65vw,1.5rem)}.ds1-small,.ds1-device-free{color:var(--text-secondary);margin:.8rem 0 0;font-size:clamp(.95rem,1.25vw,1.2rem)}.ds1-title-rule{background:var(--viz-1);width:4rem;height:.22rem;margin:1.8rem auto}.ds1-question-line,.ds1-answer,.ds1-boundary{border-radius:var(--radius-sm);width:fit-content;margin:1rem auto 0;padding:.65rem 1rem;font-size:clamp(1rem,1.5vw,1.45rem)}.ds1-question-line{border-left:.22rem solid var(--viz-1);color:var(--text-primary);background:var(--bg-surface)}.ds1-answer{background:var(--color-success-light)}.ds1-boundary{color:var(--ink);background:var(--paper-wash)}.ds1-notes{display:none}[data-reveal]{opacity:0;transition:opacity var(--transition-normal), transform var(--transition-normal);transform:translateY(.5rem)}[data-reveal].is-revealed{opacity:1;transform:none}[data-reveal].is-superseded{display:none}.ds1-evidence-path{grid-template-columns:minmax(8.5rem,1.2fr) auto minmax(8rem,1fr) auto minmax(7rem,.85fr) auto minmax(8rem,1fr) auto minmax(8.5rem,1.15fr);align-items:stretch;gap:clamp(.35rem,.8vw,.75rem);margin:clamp(1.25rem,2.6vw,2.4rem) 0 0;display:grid}.ds1-path-node{border:var(--border-light);border-radius:var(--radius-sm);background:var(--bg-surface);text-align:center;flex-direction:column;justify-content:center;gap:.35rem;min-height:8rem;padding:clamp(.65rem,1vw,1rem);display:flex}.ds1-path-node.is-target{border-top:.26rem solid var(--viz-2)}.ds1-path-node.is-number{border-top:.26rem solid var(--viz-3)}.ds1-path-node.is-claim{border-color:var(--ink-decor);background:var(--paper-wash)}.ds1-path-node span,.ds1-role-stop span,.ds1-symbol-bridge span,.ds1-recording-flow span,.ds1-entry-contrast article>span,.ds1-wording-autopsy span{color:var(--text-secondary);font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.08em;text-transform:uppercase;font-weight:700}.ds1-path-node strong{font-size:clamp(1rem,1.45vw,1.4rem);line-height:1.15}.ds1-path-node small,.ds1-role-stop small,.ds1-symbol-bridge small,.ds1-recording-flow small{color:var(--text-secondary);font-family:var(--font-body);font-size:clamp(.78rem,.95vw,.95rem)}.ds1-path-arrow{color:var(--text-muted);align-self:center;font-size:clamp(1.2rem,2vw,2rem)}.ds1-path-arrow.is-jump{color:var(--ink)}.ds1-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;max-width:64rem;margin-top:1.2rem;display:grid}.ds1-choice-grid>span{border:var(--border-light);border-radius:var(--radius-sm);min-height:4.4rem;color:var(--text-primary);background:var(--bg-surface);align-items:center;gap:.8rem;padding:.85rem 1rem;font-size:clamp(1rem,1.7vw,1.55rem);line-height:1.28;display:flex}.ds1-choice-grid>span b{color:var(--text-primary);font-family:var(--font-mono);flex:none;font-size:1.15em}.ds1-choice-grid-compact>span{min-height:3.7rem}.ds1-role-legend{color:var(--text-secondary);font-family:var(--font-ui);gap:.8rem;margin-top:1rem;font-size:clamp(1rem,1.45vw,1.35rem);display:flex}.ds1-role-legend span{border-bottom:var(--border-light);padding:.35rem .2rem}.ds1-population-sample,.ds1-sample-draws,.ds1-bias-sources,.ds1-bias-matrix,.ds1-error-contrast{gap:var(--spacing-sm);margin-top:var(--spacing-sm);display:grid}.ds1-population-sample,.ds1-error-contrast{grid-template-columns:repeat(2,minmax(0,1fr))}.ds1-error-contrast article{align-content:center;gap:var(--spacing-xs);border-top:.26rem solid var(--viz-2);min-height:13rem;padding:var(--spacing-md);background:var(--bg-surface-alt);display:grid}.ds1-error-contrast article:last-child{border-top-color:var(--viz-3)}.ds1-sample-draws span,.ds1-bias-sources span,.ds1-error-contrast span{color:var(--text-secondary);font-family:var(--font-mono);font-size:var(--text-sm);letter-spacing:.08em;text-transform:uppercase;font-weight:700}.ds1-error-contrast strong{font-size:clamp(1.2rem,2vw,2rem);line-height:1.2}.ds1-error-contrast p{color:var(--text-secondary);font-family:var(--font-body);margin:0;font-size:clamp(.95rem,1.3vw,1.2rem);line-height:1.4}.ds1-population-sample .definition-box{align-content:center;min-height:13rem;margin-bottom:0;display:grid}.ds1-population-sample>[data-reveal]{min-width:0}.ds1-population-sample>[data-reveal] .definition-box{height:100%}.ds1-population-sample .definition-box p{margin:0 0 var(--spacing-xs);color:var(--text-primary);font-family:var(--font-body);font-size:clamp(.95rem,1.3vw,1.2rem);line-height:1.5}.ds1-population-sample .definition-box p:last-child,.ds1-entry-contrast .definition-box,.ds1-bias-sources-frame .definition-box,.ds1-response-error-frame .definition-box{margin-bottom:0}.ds1-entry-contrast .definition-box h3,.ds1-bias-sources-frame .definition-box h3,.ds1-response-error-frame .definition-box h3{margin-bottom:calc(var(--spacing-xs) * .5);font-size:clamp(1rem,1.4vw,1.3rem)}.ds1-entry-contrast .definition-box p,.ds1-definition-intro,.ds1-definition-list{font-family:var(--font-body);line-height:1.4}.ds1-entry-contrast .definition-box p{margin:0;font-size:clamp(.82rem,1.05vw,1rem)}.ds1-entry-contrast>[data-reveal]{min-width:0}.ds1-entry-contrast .definition-box{height:100%}.ds1-definition-intro{margin:0 0 var(--spacing-xs);font-size:clamp(.88rem,1.1vw,1.05rem)}.ds1-definition-list{gap:calc(var(--spacing-xs) * .65) var(--spacing-sm);padding-left:var(--spacing-sm);grid-template-columns:repeat(2,minmax(0,1fr));margin:0;font-size:clamp(.82rem,1.05vw,1rem);display:grid}.ds1-definition-list li::marker{color:var(--text-primary)}.ds1-definition-rule{width:fit-content;margin:var(--spacing-sm) 0 0;border-left:.22rem solid var(--viz-1);padding:var(--spacing-xs) var(--spacing-sm);color:var(--text-secondary);background:var(--bg-surface);font-family:var(--font-body);font-size:clamp(1rem,1.45vw,1.35rem);line-height:1.4}.ds1-definition-rule b{color:var(--text-primary);font-family:var(--font-heading)}.ds1-sample-draws{grid-template-columns:repeat(3,minmax(0,1fr))}.ds1-sample-draws article{align-content:center;gap:var(--spacing-xs);border:var(--border-light);border-radius:var(--radius-sm);min-height:12rem;padding:var(--spacing-sm);background:var(--bg-surface);display:grid}.ds1-sample-draws p{color:var(--text-secondary);font-family:var(--font-mono);margin:0;font-size:clamp(.85rem,1.1vw,1.05rem);line-height:1.5}.ds1-sample-draws strong{color:var(--accent-primary);font-family:var(--font-mono);font-size:clamp(1.25rem,2vw,2rem)}.ds1-sample-mean-line{height:var(--spacing-md);border-bottom:var(--border-medium);position:relative}.ds1-sample-mean-line:before{border-left:.16rem dashed var(--text-secondary);content:"";height:100%;position:absolute;bottom:0;left:50%}.ds1-sample-mean-line:after{color:var(--text-secondary);content:"μ";font-family:var(--font-mono);position:absolute;top:0;left:50%;transform:translate(-50%)}.ds1-sample-mean-line i{aspect-ratio:1;background:var(--viz-1);border-radius:50%;width:.75rem;position:absolute;bottom:-.38rem;transform:translate(-50%)}.ds1-sample-mean-line.is-low i{left:35%}.ds1-sample-mean-line.is-high i{left:65%}.ds1-sample-mean-line.is-near i{left:47%}.ds1-role-path,.ds1-recording-flow{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr) auto minmax(0,1fr);align-items:stretch;gap:.75rem;margin-top:1rem;display:grid}.ds1-role-path>span,.ds1-recording-flow>span{color:var(--text-muted);align-self:center;font-size:1.8rem}.ds1-role-stop,.ds1-recording-flow>div,.ds1-symbol-bridge>div{border:var(--border-light);border-radius:var(--radius-sm);background:var(--bg-surface);text-align:center;place-content:center;gap:.3rem;min-height:7rem;padding:.8rem 1rem;display:grid}.ds1-role-stop strong,.ds1-recording-flow strong{font-size:clamp(1.05rem,1.75vw,1.65rem)}.ds1-symbol-bridge{grid-template-columns:minmax(0,1fr) minmax(10rem,.8fr) minmax(0,1fr);align-items:center;gap:.8rem;margin-top:.8rem;display:grid}.ds1-symbol-bridge strong{color:var(--accent-primary);font-family:var(--font-mono);font-size:clamp(1.6rem,3vw,3rem)}.ds1-bridge-line{color:var(--text-secondary);font-family:var(--font-body);text-align:center;font-size:clamp(.95rem,1.3vw,1.2rem)}.ds1-variable-tree{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;max-width:64rem;margin-top:1rem;display:grid}.ds1-variable-frame h2{font-size:clamp(2rem,3.6vw,4rem)}.ds1-variable-frame .ds1-definition-rule,.ds1-variable-frame .ds1-variable-tree,.ds1-variable-frame .ds1-route-token-stack{margin-top:var(--spacing-xs)}.ds1-variable-frame .ds1-tree-branch>div{min-height:4.35rem;padding-block:var(--spacing-xs)}.ds1-variable-frame .ds1-route-token-stack{min-height:3.25rem}.ds1-variable-frame .ds1-route-token-stack p{padding-block:var(--spacing-xs)}.ds1-tree-root{border-radius:var(--radius-sm);width:fit-content;color:var(--bg-surface);background:var(--text-primary);grid-column:1/-1;margin-inline:auto;padding:.6rem 1.1rem;font-size:clamp(1.05rem,1.6vw,1.5rem);font-weight:700}.ds1-tree-branch{text-align:center;grid-template-columns:repeat(2,minmax(0,1fr));gap:.55rem;display:grid}.ds1-tree-branch>strong,.ds1-tree-branch>span{grid-column:1/-1}.ds1-tree-branch>strong{color:var(--text-secondary);font-size:clamp(1rem,1.55vw,1.45rem)}.ds1-tree-branch>div{border-top:.22rem solid var(--viz-2);background:var(--bg-surface-alt);align-content:center;gap:.25rem;min-height:5rem;padding:.65rem;display:grid}.ds1-tree-branch:nth-child(3)>div{border-top-color:var(--viz-3)}.ds1-tree-branch b{font-size:clamp(1.1rem,1.75vw,1.65rem)}.ds1-tree-branch small{color:var(--text-secondary);font-family:var(--font-body);font-size:clamp(.85rem,1.1vw,1.05rem)}.ds1-route-token-stack{min-height:3.9rem;margin-top:.75rem;position:relative}.ds1-route-token-stack p{border-left:.22rem solid var(--viz-1);background:var(--bg-surface);margin:0;padding:.65rem 1rem;font-size:clamp(1rem,1.5vw,1.45rem);position:absolute;inset:0}.ds1-route-token-stack p>span{color:var(--text-secondary);font-family:var(--font-body)}.ds1-route-token-stack p>strong{color:var(--accent-primary);margin-top:.3rem;display:block}.ds1-recording-flow{margin-top:clamp(.8rem,1.8vw,1.6rem)}.ds1-recording-flow>div{min-height:9rem}.ds1-recording-flow strong{color:var(--accent-primary);font-family:var(--font-mono);font-size:clamp(1.8rem,3.8vw,4rem)}.ds1-method-stage{min-height:20.5rem;margin-top:1rem;position:relative}.ds1-method-state{border:var(--border-light);border-radius:var(--radius-md);background:var(--bg-surface);text-align:center;place-content:center;gap:.8rem;padding:1.25rem;display:grid;position:absolute;inset:0}.ds1-method-answer strong{color:var(--accent-primary);font-size:clamp(2rem,4.1vw,4.4rem);line-height:1}.ds1-method-state>p,.ds1-method-answer p{max-width:46ch;color:var(--text-secondary);font-family:var(--font-body);margin:0 auto;font-size:clamp(1.1rem,1.8vw,1.7rem)}.ds1-method-answer{gap:.55rem;display:grid}.ds1-method-prompt{color:var(--text-primary)!important}.ds1-roster-strip{grid-template-columns:repeat(12,2.2rem);justify-content:center;gap:.45rem;display:grid}.ds1-roster-strip i,.ds1-group-dots i{aspect-ratio:1;background:var(--color-mid-gray);border-radius:50%;display:block}.ds1-roster-strip.is-random i:first-child,.ds1-roster-strip.is-random i:nth-child(4),.ds1-roster-strip.is-random i:nth-child(7),.ds1-roster-strip.is-random i:nth-child(11),.ds1-roster-strip.is-systematic i:nth-child(2),.ds1-roster-strip.is-systematic i:nth-child(5),.ds1-roster-strip.is-systematic i:nth-child(8),.ds1-roster-strip.is-systematic i:nth-child(11),.ds1-roster-strip.is-convenience i:nth-child(-n+4){outline:.25rem solid color-mix(in srgb, var(--focus-ring) 35%, transparent);background:var(--viz-1)}.ds1-group-dots{grid-template-columns:repeat(3,minmax(8rem,11rem));justify-content:center;gap:.8rem;display:grid}.ds1-group-dots>span{border:var(--border-light);border-radius:var(--radius-md);grid-template-columns:repeat(2,1.9rem);justify-content:center;gap:.55rem;padding:1rem;display:grid}.ds1-group-dots.is-stratified>span i:first-child,.ds1-group-dots.is-cluster>span:first-child i,.ds1-group-dots.is-cluster>span:nth-child(3) i{outline:.22rem solid color-mix(in srgb, var(--focus-ring) 35%, transparent);background:var(--viz-1)}.ds1-stage-chain{justify-content:center;align-items:center;gap:.8rem;display:flex}.ds1-stage-chain span{border:var(--border-light);border-radius:var(--radius-sm);background:var(--bg-surface-alt);padding:1.1rem;font-size:clamp(1.2rem,2vw,2rem);font-weight:700}.ds1-entry-contrast,.ds1-cloud-comparison{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.2rem;margin-top:.65rem;display:grid}.ds1-bias-funnel{max-width:62rem;margin:1rem 0 0;padding:0;list-style:none}.ds1-bias-funnel li{border-bottom:var(--border-light);grid-template-columns:2.5rem minmax(10rem,.35fr) 1fr;align-items:baseline;gap:.8rem;padding:.55rem 0;display:grid}.ds1-bias-funnel li>span{color:var(--text-primary);font-family:var(--font-mono)}.ds1-bias-funnel li>b{font-size:clamp(1.05rem,1.6vw,1.5rem)}.ds1-bias-funnel li>small{color:var(--text-secondary);font-family:var(--font-body);font-size:clamp(.9rem,1.25vw,1.2rem)}.ds1-bias-sources,.ds1-bias-matrix{grid-template-columns:repeat(2,minmax(0,1fr))}.ds1-bias-sources article{gap:var(--spacing-xs);border-left:.22rem solid var(--viz-2);padding:var(--spacing-sm);background:var(--bg-surface-alt);display:grid}.ds1-bias-sources article:nth-child(2){border-left-color:var(--viz-3)}.ds1-bias-sources article:nth-child(3){border-left-color:var(--viz-4)}.ds1-bias-sources article:nth-child(4){border-left-color:var(--viz-1)}.ds1-bias-sources strong{font-size:clamp(1.15rem,1.8vw,1.7rem)}.ds1-bias-sources p{color:var(--text-secondary);font-family:var(--font-body);margin:0;font-size:clamp(.9rem,1.15vw,1.1rem);line-height:1.35}.ds1-bias-sources-frame h2{font-size:clamp(2rem,3.6vw,4rem)}.ds1-bias-sources-frame .ds1-context,.ds1-bias-sources-frame .ds1-bias-sources,.ds1-bias-sources-frame .ds1-boundary{margin-top:var(--spacing-xs);margin-bottom:0}.ds1-bias-sources-frame .ds1-bias-sources{gap:var(--spacing-xs)}.ds1-bias-sources-frame .ds1-definition-list{font-size:clamp(1.25rem,1.75vw,1.5rem);line-height:1.35}.ds1-bias-sources-frame .ds1-bias-sources article{gap:calc(var(--spacing-xs) * .5);padding:var(--spacing-xs) var(--spacing-sm)}.ds1-bias-sources-frame .ds1-boundary{padding-block:var(--spacing-xs)}.ds1-bias-matrix{gap:var(--spacing-xs)}.ds1-bias-matrix figure{border:var(--border-light);border-radius:var(--radius-sm);background:var(--bg-surface);grid-template-columns:minmax(0,.9fr) minmax(12rem,1.1fr);align-items:center;margin:0;display:grid}.ds1-bias-matrix figure.is-trap{border-color:var(--color-warning-border);background:var(--color-warning-light)}.ds1-bias-matrix svg{width:100%;display:block}.ds1-bias-matrix figcaption{padding:var(--spacing-sm);font-family:var(--font-body);gap:.3rem;display:grid}.ds1-bias-matrix figcaption b{font-family:var(--font-heading);font-size:clamp(1rem,1.45vw,1.35rem)}.ds1-bias-matrix figcaption span{color:var(--text-secondary);font-size:clamp(.85rem,1.1vw,1.05rem)}.ds1-cloud-comparison figure{border:var(--border-light);border-radius:var(--radius-sm);background:var(--bg-surface);margin:0}.ds1-cloud-comparison svg{width:100%;height:9.5rem;display:block}.ds1-target-line{stroke:var(--text-secondary);stroke-width:2px;stroke-dasharray:7 6}.ds1-target-label{fill:var(--text-secondary);font-family:var(--font-mono);text-anchor:middle;font-size:16px}.ds1-cloud-dot{fill:var(--viz-2)}.ds1-cloud-comparison figcaption{border-top:var(--border-light);color:var(--text-secondary);font-family:var(--font-body);justify-content:space-between;gap:.7rem;padding:.65rem .85rem;font-size:clamp(.95rem,1.25vw,1.2rem);display:flex}.ds1-cloud-comparison figcaption b{color:var(--text-primary);font-family:var(--font-heading)}.ds1-cloud-response{place-items:start center;min-height:4.6rem;margin-top:.55rem;display:grid}.ds1-cloud-response>*{grid-area:1/1;margin-top:0}.ds1-cloud-response:has(.ds1-answer.is-revealed) .ds1-question-line{opacity:0}.ds1-evidence-return .ds1-path-node{min-height:10.5rem}.ds1-evidence-return .ds1-path-node small{place-content:center;min-height:3.3rem;display:grid}.ds1-case-pin{border-left:.22rem solid var(--viz-1);padding-left:.9rem}.ds1-worked-lines{max-width:66rem;margin-top:.7rem}.ds1-worked-lines p{border-bottom:var(--border-light);grid-template-columns:minmax(9rem,.28fr) 1fr;gap:1rem;margin:0;padding:.48rem 0;font-size:clamp(.98rem,1.45vw,1.4rem);line-height:1.28;display:grid}.ds1-worked-lines span{color:var(--text-primary);font-family:var(--font-mono);letter-spacing:.05em;text-transform:uppercase;font-size:.78em;font-weight:700}.ds1-case-file{grid-template-columns:minmax(17rem,.8fr) minmax(0,1.2fr);gap:1.2rem;margin-top:1rem;display:grid}.ds1-case-facts,.ds1-audit-prompts{border:var(--border-light);border-radius:var(--radius-sm);background:var(--bg-surface);margin:0;padding:.9rem 1rem}.ds1-case-facts{gap:0;display:grid}.ds1-case-facts span{border-bottom:var(--border-light);font-family:var(--font-body);grid-template-columns:7.5rem 1fr;gap:.5rem;padding:.43rem 0;font-size:clamp(.9rem,1.2vw,1.15rem);display:grid}.ds1-case-facts span:last-child{border-bottom:0}.ds1-audit-prompts{list-style:none}.ds1-audit-prompts li{border-bottom:var(--border-light);grid-template-columns:7rem 1fr;gap:.7rem;padding:.54rem 0;font-size:clamp(.95rem,1.35vw,1.3rem);display:grid}.ds1-audit-prompts li:last-child{border-bottom:0}.ds1-audit-prompts span{color:var(--text-primary);font-weight:700}.ds1-survey-quote{border-left:.3rem solid var(--viz-1);background:var(--bg-surface);max-width:52rem;font-family:var(--font-body);margin:.75rem 0 0;padding:.75rem 1rem;font-size:clamp(1.35rem,2.4vw,2.45rem);line-height:1.35}.ds1-wording-autopsy{max-width:60rem;margin-top:.7rem}.ds1-wording-autopsy p,.ds1-wording-autopsy>div{border-bottom:var(--border-light);grid-template-columns:minmax(8rem,.25fr) 1fr;gap:1rem;margin:0;padding:.55rem 0;font-size:clamp(.98rem,1.4vw,1.35rem);display:grid}.ds1-wording-autopsy>div strong+strong{grid-column:2}.ds1-flaw-options{gap:var(--spacing-xs);margin-top:var(--spacing-sm);grid-template-columns:repeat(4,minmax(0,1fr));display:grid}.ds1-flaw-options span{border:var(--border-light);border-radius:var(--radius-sm);padding:var(--spacing-xs);background:var(--bg-surface);text-align:center;font-size:clamp(.9rem,1.25vw,1.15rem);font-weight:600}.ds1-response-error-frame h2,.ds1-figure-frame h2{font-size:clamp(2rem,3.6vw,4rem)}.ds1-response-error-frame .ds1-error-contrast{margin-top:var(--spacing-xs)}.ds1-response-error-frame .ds1-error-contrast article{min-height:11rem;padding:var(--spacing-sm)}.ds1-response-error-frame .ds1-definition-rule{margin-top:var(--spacing-xs);padding-block:var(--spacing-xs)}.ds1-response-error-sources{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:0}.ds1-embedded-figure-frame.is-active,.ds1-embedded-figure-frame.ds1-preview-frame{align-items:flex-start}.ds1-embedded-figure-frame{padding-block:clamp(.75rem,1.5vw,1.35rem)}.ds1-embedded-figure-frame h2{max-width:none;margin-top:var(--spacing-xs);font-size:clamp(1.75rem,2.8vw,3rem)}.ds1-lesson-figure .viz-container{margin:var(--spacing-xs) 0 0;padding:var(--spacing-xs);box-shadow:none;background:0 0;border:0;overflow:visible}.ds1-lesson-figure .viz-interactive{align-items:flex-start;min-height:0}.ds1-lesson-figure .viz-caption{display:none}.ds1-lesson-figure pop-sample-viz,.ds1-lesson-figure estimation-bridge-viz,.ds1-lesson-figure variable-type-viz,.ds1-lesson-figure sampling-methods-viz,.ds1-lesson-figure bias-precision-viz,.ds1-lesson-figure survey-flaws-viz{width:100%;display:block}.ds1-figure-one svg,.ds1-figure-two svg,.ds1-figure-three svg{width:min(100%,58rem)!important;max-width:none!important}.ds1-figure-one pop-sample-viz #psv-svg svg{width:min(100%,42rem)!important}.ds1-figure-three variable-type-viz #vtv-svg svg{width:min(100%,58rem)!important}.ds1-figure-three .viz-container{margin-top:var(--spacing-md);padding-top:0}.ds1-figure-three variable-type-viz .vtv-ex{padding:calc(var(--spacing-xs) * .55) var(--spacing-xs)!important;font-size:clamp(.82rem,1vw,.95rem)!important}.ds1-figure-three variable-type-viz #vtv-exp>div{margin-top:var(--spacing-xs)!important}.ds1-figure-one pop-sample-viz #psv-info{padding:var(--spacing-xs) var(--spacing-sm);font-size:clamp(.82rem,1.1vw,1rem);line-height:1.35}.ds1-figure-two estimation-bridge-viz>div>div:nth-of-type(2)>div{padding:var(--spacing-xs) var(--spacing-sm)!important}.ds1-figure-two estimation-bridge-viz>div>div:nth-of-type(2)>div>div{margin-block:calc(var(--spacing-xs) * .6)!important}.ds1-figure-two estimation-bridge-viz>div>div:nth-of-type(2)>div>div:last-child{display:none}.ds1-figure-two estimation-bridge-viz>div>div:nth-of-type(3){position:relative;margin-top:var(--spacing-xs)!important;padding:var(--spacing-xs) var(--spacing-sm)!important}.ds1-figure-two estimation-bridge-viz>div>div:nth-of-type(3) svg{width:min(100%,42rem)!important}.ds1-figure-two estimation-bridge-viz>div>div:nth-of-type(3)>div:last-child{top:var(--spacing-xs);right:var(--spacing-sm);position:absolute;margin-top:0!important}.ds1-figure-two estimation-bridge-viz>div>div:nth-of-type(3)>div:last-child span{display:none}.ds1-figure-four sampling-methods-viz #smv-svg svg{width:min(100%,38rem)!important;max-width:none!important}.ds1-figure-four sampling-methods-viz #smv-body>div:nth-child(n+4){display:none}.ds1-figure-five{max-width:52rem;margin-inline:auto}.ds1-figure-five .viz-container{margin-top:0;padding-block:0}.ds1-figure-five bias-precision-viz .bpv-controls{margin-bottom:calc(var(--spacing-xs) * .5)}.ds1-figure-five bias-precision-viz .bpv-grid{gap:calc(var(--spacing-xs) * .55)}.ds1-figure-five bias-precision-viz .bpv-card{padding:calc(var(--spacing-xs) * .6) calc(var(--spacing-xs) * .75);align-self:end}.ds1-figure-five bias-precision-viz .bpv-cell-label,.ds1-figure-five bias-precision-viz .bpv-danger-ribbon,.ds1-figure-five bias-precision-viz .bpv-meta{margin-block:calc(var(--spacing-xs) * .2)}.ds1-figure-five bias-precision-viz .bpv-cell-svg svg{max-width:15rem}.ds1-figure-five bias-precision-viz .bpv-insight{margin-top:calc(var(--spacing-xs) * .45);padding-block:calc(var(--spacing-xs) * .5);font-size:clamp(.74rem,.9vw,.86rem);line-height:1.25}.ds1-figure-six{max-width:64rem;margin-inline:auto}.ds1-figure-frame .ds1-survey-quote,.ds1-figure-frame .ds1-flaw-options,.ds1-figure-frame .ds1-question-line,.ds1-figure-frame .ds1-wording-autopsy{margin-top:var(--spacing-xs)}.ds1-figure-frame .ds1-survey-quote{padding-block:var(--spacing-xs);font-size:clamp(1.3rem,2.1vw,2.1rem)}.ds1-figure-frame .ds1-question-line{padding-block:var(--spacing-xs)}.ds1-figure-frame .ds1-wording-autopsy p,.ds1-figure-frame .ds1-wording-autopsy>div{padding-block:calc(var(--spacing-xs) * .65)}.ds1-four-lenses{grid-template-columns:repeat(4,minmax(0,1fr));gap:.85rem;margin:2rem auto 0;padding:0;list-style:none;display:grid}.ds1-four-lenses li{border-top:.28rem solid var(--viz-1);background:var(--bg-surface-alt);text-align:left;flex-direction:column;justify-content:space-between;min-height:12rem;padding:1.1rem;display:flex}.ds1-four-lenses span{color:var(--text-primary);font-size:clamp(1.6rem,3vw,3rem);font-weight:700}.ds1-four-lenses strong{color:var(--text-secondary);font-family:var(--font-body);font-size:clamp(1rem,1.4vw,1.35rem);line-height:1.35}.ds1-lens-pulse{grid-template-columns:repeat(4,minmax(0,1fr));gap:.8rem;margin-top:2rem;display:grid}.ds1-lens-pulse span{border:var(--border-light);border-radius:var(--radius-sm);background:var(--bg-surface);gap:.4rem;padding:1.2rem;font-size:clamp(1.15rem,2vw,2rem);font-weight:700;display:grid}.ds1-lens-pulse b{color:var(--text-primary);font-family:var(--font-mono)}.ds1-method-retrieval{grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem;margin-top:1rem;display:grid}.ds1-method-retrieval article{border:var(--border-light);border-radius:var(--radius-sm);background:var(--bg-surface);grid-template-rows:auto 1fr auto;gap:.75rem;min-height:12rem;padding:1.1rem;display:grid}.ds1-method-retrieval article>span{aspect-ratio:1;width:2.25rem;color:var(--bg-surface);background:var(--text-primary);font-family:var(--font-mono);border-radius:999px;place-content:center;font-weight:700;display:grid}.ds1-method-retrieval p{font-family:var(--font-body);margin:0;font-size:clamp(1.05rem,1.55vw,1.4rem);line-height:1.4}.ds1-method-retrieval strong{border-top:var(--border-light);color:var(--color-success);padding-top:.65rem;font-size:clamp(1rem,1.35vw,1.25rem)}.ds1-closing-path{justify-content:center;align-items:center;gap:clamp(.5rem,1.4vw,1.25rem);margin-top:1.1rem;font-size:clamp(1.1rem,2vw,2rem);font-weight:700;display:flex}.ds1-closing-path b{color:var(--text-primary)}.ds1-poll-frame h2{font-size:clamp(1.8rem,3.6vw,4rem)}.ds1-poll-frame [data-frame-content]{padding-right:clamp(16rem,25vw,21rem)}.ds1-opening-poll .ds1-context{margin-block:.55rem}.ds1-opening-poll .ds1-choice-grid{margin-top:.85rem}.ds1-compact-poll-frame .ds1-context,.ds1-compact-poll-frame .ds1-choice-grid{margin-top:.55rem;margin-bottom:0}.ds1-compact-poll-frame h2{font-size:clamp(1.8rem,3vw,3.2rem)}.ds1-compact-poll-frame .ds1-context{font-size:clamp(1rem,1.35vw,1.2rem);line-height:1.3}.ds1-compact-poll-frame .ds1-choice-grid{gap:.55rem}.ds1-compact-poll-frame .ds1-poll-options>span{min-height:3.2rem;padding-block:.6rem}.ds1-compact-poll-frame .ds1-method-retrieval,.ds1-compact-poll-frame .ds1-answer{margin-top:.55rem}.ds1-compact-poll-frame .classroom-deck-offline-poll-cue{margin-block:.55rem 0;padding-block:.55rem}.ds1-confidence-grid-frame h2{font-size:clamp(2rem,3.2vw,3.5rem)}.ds1-confidence-grid-frame [data-frame-content]{padding-right:clamp(13rem,20vw,17rem)}.ds1-confidence-grid{gap:.3rem;margin-top:.6rem;display:grid}.ds1-confidence-grid>div{border-bottom:var(--border-light);grid-template-columns:2.8rem minmax(0,1fr);align-items:center;gap:.65rem;min-width:0;padding:.2rem 0;display:grid}.ds1-confidence-grid>div>span{color:var(--text-primary);font-family:var(--font-mono);font-size:clamp(1.15rem,1.7vw,1.4rem);font-weight:750}.ds1-confidence-grid p{font-family:var(--font-body);margin:0;font-size:clamp(1.15rem,1.7vw,1.45rem);line-height:1.25}.ds1-confidence-grid em{color:var(--text-secondary);font-size:.85em}.ds1-confidence-scale{grid-template-columns:repeat(6,minmax(0,1fr));gap:.35rem;margin-top:.65rem;display:grid}.ds1-confidence-scale span{border:var(--border-light);border-radius:var(--radius-sm);min-width:0;color:var(--text-secondary);background:var(--bg-surface);font-family:var(--font-heading);text-align:center;place-content:center;gap:.1rem;padding:.35rem .2rem;font-size:clamp(1rem,1.6vw,1.25rem);line-height:1.15;display:grid}.ds1-confidence-scale b{color:var(--text-primary);font-size:clamp(1.2rem,1.8vw,1.5rem)}.ds1-confidence-grid-frame.has-poll-results [data-frame-content]{padding-right:0}.ds1-confidence-grid-frame.has-poll-results :is(.ds1-confidence-grid,.ds1-confidence-scale){display:none}.ds1-confidence-results[data-total]:not([data-total="0"]){border-left:0;gap:.35rem;width:100%;margin-top:.7rem;padding-left:0;position:static}.ds1-deck .classroom-deck-confidence-result-row{border-bottom:var(--border-light);grid-template-columns:minmax(18rem,1.4fr) minmax(24rem,1fr);align-items:center;gap:.8rem;padding:.25rem 0;display:grid}.ds1-deck .classroom-deck-confidence-result-label{font-family:var(--font-ui);font-size:clamp(1.1rem,1.6vw,1.3rem);line-height:1.2}.ds1-deck .classroom-deck-confidence-result-cells{grid-template-columns:repeat(6,minmax(0,1fr));gap:.25rem;display:grid}.ds1-deck .classroom-deck-confidence-result-cell{border:var(--border-light);border-radius:var(--radius-sm);min-height:2.6rem;color:var(--text-secondary);background:var(--bg-surface);font-family:var(--font-mono);grid-template-columns:auto auto;place-content:center;gap:.3rem;font-size:clamp(1rem,1.6vw,1.25rem);display:grid}.ds1-deck .classroom-deck-confidence-result-cell.is-mode{border-color:var(--viz-1);background:color-mix(in srgb, var(--viz-1) 12%, var(--bg-surface))}.ds1-deck .classroom-deck-confidence-result-cell b{color:var(--text-primary)}.ds1-deck.is-presenter .ds1-compact-poll-frame.is-active{align-items:flex-start}.ds1-poll-options>span{min-height:3.8rem;font-size:clamp(.95rem,1.45vw,1.35rem)}.ds1-deck .classroom-deck-poll-join{width:clamp(11.5rem,17vw,14rem);color:var(--text-primary);box-shadow:none;text-align:center;background:0 0;border:0;grid-template-columns:1fr;justify-items:center;gap:.45rem;margin:0;padding:0;text-decoration:none;display:grid;position:absolute;top:0;right:0}.ds1-deck .classroom-deck-poll-join:focus-visible{border-radius:var(--radius-sm);box-shadow:var(--shadow-focus);outline:none}.ds1-deck .classroom-deck-poll-qr{aspect-ratio:1;background:var(--bg-surface);border:0;width:clamp(9.5rem,14vw,11.5rem);height:auto;padding:.35rem;display:block}.ds1-deck .classroom-deck-poll-qr svg{width:100%;height:100%;display:block}.ds1-deck .classroom-deck-poll-join-copy{gap:.3rem;width:100%;min-width:0;font-size:clamp(.76rem,1vw,.95rem);line-height:1.25;display:grid}.ds1-deck .classroom-deck-poll-join-copy strong{font-size:clamp(1rem,1.35vw,1.25rem)}.ds1-deck .classroom-deck-poll-url{color:var(--text-secondary);font-family:var(--font-mono);overflow-wrap:anywhere}.ds1-deck .classroom-deck-poll-join-copy b{color:var(--text-primary);font-family:var(--font-mono)}.ds1-poll-results{border-left:.2rem solid var(--viz-1);gap:.6rem;width:clamp(15rem,23vw,20rem);margin:0;padding-left:.85rem;display:grid;position:absolute;top:0;right:0}.ds1-poll-results[data-total="0"],.ds1-poll-frame.has-poll-results .classroom-deck-poll-join{display:none}.ds1-deck .classroom-deck-result-summary{color:var(--text-primary);font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;margin:0 0 .15rem;font-size:clamp(.85rem,1.15vw,1.05rem);font-weight:700}.ds1-deck .classroom-deck-result-row{color:var(--text-secondary);font-family:var(--font-body);grid-template-columns:1.75rem minmax(4rem,1fr) auto;align-items:center;gap:.5rem;margin:0;font-size:clamp(.75rem,1vw,.95rem);display:grid}.ds1-deck .classroom-deck-result-label{width:1.75rem;color:var(--text-primary);white-space:normal;font-size:0;font-weight:750;overflow:visible}.ds1-deck .classroom-deck-result-label:before{content:attr(data-poll-key);font-size:1rem}.ds1-deck .classroom-deck-result-track{border-radius:var(--radius-lg);background:var(--color-light-gray);height:.55rem;overflow:hidden}.ds1-deck .classroom-deck-result-fill{border-radius:inherit;background:var(--viz-2);height:100%;transition:width var(--transition-normal);display:block}.ds1-deck .classroom-deck-result-row strong{color:var(--text-primary);font-family:var(--font-mono);text-align:right}.ds1-poll-actions{color:var(--text-muted);font-size:var(--text-xs);align-items:center;gap:.55rem;margin-top:.8rem;display:flex}.ds1-poll-actions button:first-child{color:var(--text-primary);border-color:var(--text-primary);background:var(--bg-surface)}.ds1-presenter-preview{z-index:3;background:var(--bg-surface);position:absolute;inset:0}.ds1-presenter-preview[hidden]{display:none}.ds1-preview-label{z-index:5;border:var(--border-light);border-radius:var(--radius-sm);max-width:min(30rem,100% - 1.3rem);color:var(--text-secondary);background:color-mix(in srgb, var(--bg-surface) 92%, transparent);box-shadow:var(--shadow-sm);font-size:var(--text-xs);pointer-events:none;align-items:center;gap:.5rem;padding:.4rem .65rem;display:flex;position:absolute;top:.65rem;right:.65rem}.ds1-preview-label span{color:var(--accent-primary);font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;font-weight:700}.ds1-preview-label strong{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.ds1-preview-canvas,.ds1-preview-frame{position:absolute;inset:0}.ds1-preview-end{text-align:center;place-content:center;gap:.5rem;padding:2rem;display:grid;position:absolute;inset:0}.ds1-preview-end p{color:var(--accent-primary);font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:.1em;text-transform:uppercase;margin:0}.ds1-preview-end strong{font-size:clamp(1.6rem,3vw,3rem)}.ds1-presenter-panel{border:var(--border-light);border-radius:var(--radius-md);background:var(--bg-surface);min-width:0;min-height:0;padding:clamp(1rem,1.6vw,1.5rem);overflow:auto}.ds1-presenter-panel h2{margin-top:.6rem;font-size:clamp(1.2rem,2vw,1.8rem)}.ds1-note-copy{color:var(--text-secondary);font-family:var(--font-body);font-size:var(--text-sm);margin-top:1.25rem;line-height:1.6}.ds1-note-copy p{margin:0 0 .8rem}.ds1-current-control-mode,.ds1-current-poll-controls,.ds1-keyboard-card,.ds1-display-note{border-top:var(--border-light);margin-top:1.25rem;padding-top:1rem}.ds1-current-control-mode>p:last-child,.ds1-keyboard-card,.ds1-display-note{color:var(--text-secondary);font-size:var(--text-xs);line-height:1.45}.ds1-current-control-mode button{margin-top:.7rem}.ds1-current-poll-controls .ds1-poll-actions{flex-wrap:wrap}.ds1-current-poll-controls .ds1-poll-actions span{flex-basis:100%}kbd{border:var(--border-light);border-bottom-color:var(--color-mid-gray);min-width:1.6rem;color:var(--text-primary);background:var(--bg-surface);font-family:var(--font-mono);text-align:center;border-radius:.3rem;padding:.15rem .35rem;font-size:.75em;display:inline-block}.ds1-footer{border-top:var(--border-light);padding-top:.5rem;padding-bottom:.65rem}.ds1-progress{background:var(--color-light-gray);height:2px;overflow:hidden}.ds1-progress span{background:var(--viz-1);width:0;height:100%;transition:width var(--transition-normal);display:block}.ds1-footer-row{justify-content:space-between;gap:1rem;min-height:2.6rem;padding-top:.45rem}.ds1-frame-count,.ds1-shortcut-hint{color:var(--text-secondary);font-family:var(--font-mono);font-size:var(--text-xs)}.ds1-nav-controls{gap:.4rem}.ds1-nav-controls button,.ds1-overview button{border:var(--border-light);border-radius:var(--radius-control);min-height:2.35rem;color:var(--text-primary);background:var(--bg-surface);cursor:pointer;font-size:var(--text-sm);padding:.4rem .8rem;font-weight:600}.ds1-nav-controls button[data-next]{color:var(--button-main-label);border-color:var(--button-main);background:var(--button-main)}.ds1-nav-controls button:hover,.ds1-nav-controls button:focus-visible,.ds1-overview button:hover,.ds1-overview button:focus-visible{box-shadow:var(--shadow-focus);outline:none}.ds1-nav-controls button:disabled{opacity:.35;cursor:default;box-shadow:none}.ds1-overview{border:var(--border-light);border-radius:var(--radius-md);width:min(74rem,100vw - 2rem);max-height:calc(100dvh - 2rem);color:var(--text-primary);background:var(--bg-color);box-shadow:var(--shadow-lg);padding:1.25rem}.ds1-overview::backdrop{background:color-mix(in srgb, var(--text-primary) 45%, transparent)}.ds1-overview-head{justify-content:space-between;align-items:center;gap:1rem;display:flex}.ds1-overview-grid{grid-template-columns:repeat(auto-fill,minmax(12rem,1fr));gap:.65rem;margin-top:1.25rem;display:grid}.ds1-overview-grid button{text-align:left;align-items:flex-start;gap:.7rem;min-height:6rem;display:flex}.ds1-overview-grid button.is-current{border-color:var(--ink)}.ds1-overview-number{color:var(--text-primary);font-family:var(--font-mono)}@media (prefers-reduced-motion:reduce){[data-reveal],.ds1-progress span,.ds1-result-fill{transition:none}}@media (width<=1080px){.ds1-evidence-path{grid-template-columns:repeat(5,minmax(0,1fr))}.ds1-path-arrow{display:none}.ds1-path-node{min-height:7rem}.ds1-frame h2{font-size:clamp(1.9rem,4vw,3.8rem)}}@media (width<=900px){.ds1-deck.is-presenter .ds1-workspace{grid-template-rows:minmax(20rem,55vh) minmax(12rem,auto);grid-template-columns:1fr}.ds1-topbar{align-items:flex-start;padding-block:.55rem}.ds1-course-title,.ds1-sync-status,.ds1-current-time,.ds1-shortcut-hint{display:none}.ds1-livebar,.ds1-live-controls,.ds1-live-controls form{align-items:flex-start}.ds1-live-controls,.ds1-live-controls form{flex-wrap:wrap}.ds1-evidence-path{grid-template-columns:repeat(3,minmax(0,1fr))}.ds1-four-lenses,.ds1-lens-pulse{grid-template-columns:repeat(2,minmax(0,1fr))}.ds1-four-lenses li{min-height:7rem}}@media (width<=640px){.ds1-page{overflow:auto}.ds1-frame.is-active{align-items:flex-start}.ds1-frame{padding:1.15rem}.ds1-frame h1{font-size:clamp(2.5rem,15vw,4.5rem)}.ds1-frame h2{font-size:clamp(1.75rem,9vw,3rem)}.ds1-top-actions .ds1-text-control:first-of-type,.ds1-join-chip{display:none}.ds1-choice-grid,.ds1-entry-contrast,.ds1-definition-list,.ds1-cloud-comparison,.ds1-population-sample,.ds1-sample-draws,.ds1-bias-sources,.ds1-bias-matrix,.ds1-error-contrast,.ds1-response-error-sources,.ds1-case-file,.ds1-variable-tree,.ds1-four-lenses,.ds1-lens-pulse,.ds1-method-retrieval{grid-template-columns:1fr}.ds1-response-error-sources article,.ds1-response-error-sources article:nth-child(4){grid-column:auto}.ds1-lesson-figure .viz-container{overflow:auto}.ds1-bias-matrix figure{grid-template-columns:minmax(0,.8fr) minmax(10rem,1.2fr)}.ds1-flaw-options{grid-template-columns:repeat(2,minmax(0,1fr))}.ds1-evidence-path,.ds1-role-path,.ds1-recording-flow{grid-template-columns:1fr}.ds1-role-path>span,.ds1-recording-flow>span{text-align:center;transform:rotate(90deg)}.ds1-symbol-bridge,.ds1-group-dots{grid-template-columns:1fr}.ds1-roster-strip{grid-template-columns:repeat(6,2rem)}.ds1-method-stage{min-height:28rem}.ds1-stage-chain{flex-direction:column}.ds1-bias-funnel li,.ds1-worked-lines p,.ds1-wording-autopsy p,.ds1-wording-autopsy>div,.ds1-audit-prompts li{grid-template-columns:1fr}.ds1-bias-funnel li{gap:.25rem}.ds1-case-facts span{grid-template-columns:6.5rem 1fr}.ds1-poll-frame [data-frame-content]{padding-right:0}.ds1-deck .classroom-deck-poll-join{text-align:center;grid-template-columns:1fr;justify-items:center;width:min(100%,15rem);margin:.85rem 0;position:static}.ds1-poll-results{width:auto;margin-top:.85rem;position:static}.ds1-deck .classroom-deck-result-row{grid-template-columns:1.75rem minmax(5rem,1fr) auto}.ds1-confidence-scale{grid-template-columns:repeat(3,minmax(0,1fr))}.ds1-deck .classroom-deck-confidence-result-row,.ds1-overview-grid{grid-template-columns:1fr}}.ds1-answer:before{content:"✓";color:var(--accent-primary);font-family:var(--font-heading);margin-right:.35em;font-weight:700}