.ab-lsn-hero{padding-bottom:40px}.ab-lsn-video{padding-top:24px}.ab-lsn-video__cols{align-items:start;display:grid;gap:32px;grid-template-columns:minmax(0,1fr) 320px}.ab-lsn-video__frame{aspect-ratio:auto;background:var(--ab-navy);max-width:none}.ab-lsn-video__frame .hs-video-widget{margin:0}.ab-lsn-video__pending{aspect-ratio:16/9;color:var(--ab-text-on-dark);display:flex;flex-direction:column;gap:10px;justify-content:center;padding:40px}.ab-lsn-video__pending p{font-size:var(--size-body);line-height:var(--lh-body);margin:0;max-width:52ch}.ab-lsn-video__pending .ab-mono{color:var(--ab-text-on-dark-3);font-size:var(--size-mono-sm)}.ab-lsn-glance{background:var(--ab-white);border:1px solid var(--ab-line);border-radius:var(--radius-card);padding:22px 24px}.ab-lsn-glance__label{color:var(--ab-ink-3);font-size:var(--size-label);font-weight:var(--weight-medium);margin:0 0 12px}.ab-lsn-glance ul{display:grid;gap:12px;margin:0;padding:0 0 0 18px}.ab-lsn-glance li{color:var(--ab-ink-2);font-size:var(--size-body-sm);line-height:var(--lh-body)}.ab-lsn-glance li::marker{color:var(--ab-navy)}.ab-lsn-doc{padding-top:32px}.ab-lsn-doc__cols{align-items:start;display:grid;gap:56px;grid-template-columns:260px minmax(0,1fr)}.ab-lsn-rail{max-height:calc(100vh - var(--header-height) - 48px);overflow:auto;position:sticky;top:calc(var(--header-height) + 24px)}.ab-lsn-rail__label{color:var(--ab-ink-3);font-size:var(--size-label);font-weight:var(--weight-medium);margin:0 0 10px}.ab-lsn-rail ol{border-left:1px solid var(--ab-line);list-style:none;margin:0;padding:0}.ab-lsn-rail li{align-items:baseline;border-left:2px solid transparent;display:grid;gap:8px;grid-template-columns:46px minmax(0,1fr);margin-left:-1px;padding:6px 0 6px 14px}.ab-lsn-rail li[aria-current=true]{border-left-color:var(--ab-navy)}.ab-lsn-rail__at{color:var(--ab-ink-3);font-size:var(--size-mono-sm)}a.ab-lsn-rail__at:hover{color:var(--ab-navy)}.ab-lsn-rail__title{color:var(--ab-ink-2);font-size:.8438rem;line-height:1.35}.ab-lsn-rail li[aria-current=true] .ab-lsn-rail__title,.ab-lsn-rail__title:hover{color:var(--ab-navy)}.ab-lsn-rail li[aria-current=true] .ab-lsn-rail__title{font-weight:var(--weight-semibold)}.ab-lsn-rail a:focus-visible{outline:2px solid var(--ab-navy);outline-offset:2px}.ab-lsn-body{max-width:72ch}.ab-lsn-lead p{font-size:var(--size-lede);line-height:var(--lh-body)}.ab-lsn-sec{padding-top:8px;scroll-margin-top:calc(var(--header-height) + 20px)}.ab-lsn-sec+.ab-lsn-sec{border-top:1px solid var(--ab-line);margin-top:28px}.ab-lsn-sec h2{margin-top:32px}.ab-lsn-body .ab-lsn-watch{color:var(--ab-ink-3);font-size:var(--size-mono-sm);margin:-4px 0 16px}.ab-lsn-body .ab-lsn-watch a{border-bottom:1px solid var(--ab-line-strong);color:var(--ab-navy);font-weight:var(--weight-semibold)}.ab-lsn-body .ab-lsn-watch a:hover{border-bottom-color:var(--ab-navy)}.ab-lsn-still{background:var(--ab-navy);border:1px solid var(--ab-line);border-radius:var(--radius-card);margin:0 0 22px;overflow:hidden}.ab-lsn-still img{display:block;height:auto;width:100%}.ab-lsn-body ol,.ab-lsn-body ul{display:grid;gap:8px;margin:0 0 20px;padding-left:22px}.ab-lsn-body li{color:var(--ab-ink-2);font-size:1.0625rem;line-height:1.6}.ab-lsn-body li::marker{color:var(--ab-ink-3)}.ab-lsn-body a{border-bottom:1px solid var(--ab-line-strong);color:var(--ab-navy)}.ab-lsn-body .ab-lsn-note{background:var(--ab-navy-wash);border-left:3px solid var(--ab-navy);border-radius:0 var(--radius-card) var(--radius-card) 0;color:var(--ab-ink);font-size:var(--size-body-sm);margin:4px 0 22px;padding:14px 18px}.ab-lsn-body .ab-lsn-note strong{color:var(--ab-navy)}.ab-quiz__list{display:grid;gap:20px;list-style:none;margin:0;max-width:820px;padding:0}.ab-quiz__q{background:var(--ab-white);border:1px solid var(--ab-line);border-radius:var(--radius-card);margin:0;padding:24px 26px}.ab-quiz__legend{display:contents}.ab-quiz__n{color:var(--ab-ink-3);display:block;font-size:var(--size-mono-sm);margin:0 0 8px}.ab-quiz__text{color:var(--ab-ink);display:block;font-family:var(--font-display);font-size:var(--size-card-title);font-weight:var(--weight-bold);letter-spacing:var(--track-h3);line-height:var(--lh-tight);margin:0 0 16px}.ab-quiz__options{display:grid;gap:10px;grid-template-columns:repeat(2,minmax(0,1fr));list-style:none;margin:0;padding:0}.ab-quiz__option{align-items:center;background:var(--ab-white);border:1px solid var(--ab-line-strong);border-radius:var(--radius-button);color:var(--ab-ink);cursor:pointer;display:flex;font-size:var(--size-body-sm);gap:12px;min-height:48px;padding:10px 14px}.ab-quiz__option:hover{border-color:var(--ab-navy)}.ab-quiz__option input{accent-color:var(--ab-navy);flex:none;margin:0}.ab-quiz__option:focus-within{outline:2px solid var(--ab-navy);outline-offset:2px}.ab-quiz__q[data-state] .ab-quiz__option{cursor:default}.ab-quiz__q[data-state] .ab-quiz__option:hover{border-color:var(--ab-line-strong)}.ab-quiz__option.is-right,.ab-quiz__q[data-state] .ab-quiz__option.is-right:hover{background:var(--ab-navy-wash);border-color:var(--ab-navy);color:var(--ab-navy);font-weight:var(--weight-semibold)}.ab-quiz__option.is-right:after{content:"Right answer";font-family:var(--font-mono);font-size:var(--size-mono-sm);font-weight:var(--weight-medium);margin-left:auto}.ab-quiz__option.is-wrong{color:var(--ab-ink-3)}.ab-quiz__option.is-wrong span{text-decoration:line-through}.ab-quiz__option.is-wrong:after{content:"Your answer";font-family:var(--font-mono);font-size:var(--size-mono-sm);margin-left:auto}.ab-quiz__why{border-top:1px solid var(--ab-line);margin:16px 0 0;padding:14px 0 0}.ab-quiz__why[hidden]{display:none}.ab-quiz__why p{color:var(--ab-ink-2);font-size:var(--size-body-sm);line-height:var(--lh-body);margin:0 0 8px}.ab-quiz__why p:last-child{margin-bottom:0}.ab-quiz__verdict{color:var(--ab-ink);font-weight:var(--weight-bold)}.ab-quiz__q[data-state=right] .ab-quiz__verdict{color:var(--ab-navy)}.ab-quiz__links{display:flex;flex-wrap:wrap;gap:8px 20px}.ab-quiz__moment{border-bottom:1px solid var(--ab-line-strong);color:var(--ab-navy);font-family:var(--font-mono);font-size:var(--size-mono-sm)}.ab-quiz__moment:hover{border-bottom-color:var(--ab-navy)}.ab-quiz__foot{align-items:center;display:flex;flex-wrap:wrap;gap:16px 24px;margin:28px 0 0;max-width:820px}.ab-quiz__score{color:var(--ab-ink);font-family:var(--font-display);font-size:var(--size-card-title);font-weight:var(--weight-bold);margin:0}.ab-quiz__foot [hidden],.ab-quiz__score:empty{display:none}.ab-lsn-next__kicker{color:var(--ab-ink-3);display:block;font-size:var(--size-mono-sm);margin:0 0 8px}.ab-lsn-list{display:grid;gap:14px;list-style:none;margin:0;max-width:920px;padding:0}.ab-lsn-list__link{align-items:start;display:grid;gap:18px;grid-template-columns:48px minmax(0,1fr)}.ab-lsn-list__link,.ab-lsn-list__link:hover{color:var(--ab-ink)}.ab-lsn-list__n{align-items:center;border:1px solid var(--ab-navy);border-radius:50%;color:var(--ab-navy);display:flex;font-family:var(--font-mono);font-weight:var(--weight-semibold);height:40px;justify-content:center;width:40px}.ab-lsn-list__main{display:grid;gap:6px}.ab-lsn-list__meta{color:var(--ab-ink-3);font-size:var(--size-mono-sm)}.ab-lsn-list__title{color:var(--ab-ink);font-family:var(--font-display);font-size:var(--size-card-title);font-weight:var(--weight-bold);letter-spacing:var(--track-h3);line-height:var(--lh-tight);margin:0}.ab-lsn-list__link:hover .ab-lsn-list__title{color:var(--ab-navy)}.ab-lsn-list__desc{color:var(--ab-ink-2);font-size:var(--size-body-sm);line-height:var(--lh-body)}@media (max-width:980px){.ab-lsn-doc__cols,.ab-lsn-video__cols{gap:28px;grid-template-columns:1fr}.ab-lsn-rail{border-bottom:1px solid var(--ab-line);max-height:none;padding-bottom:20px;position:static}}@media (max-width:600px){.ab-quiz__q{padding:20px 18px}.ab-lsn-list__link,.ab-quiz__options{grid-template-columns:1fr}.ab-lsn-list__n{display:none}}