@font-face{font-family:Tinos;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/tinos-latin-400-normal-rilFpyjL.woff2)format("woff2"),url(/assets/tinos-latin-400-normal-B05awSIM.woff)format("woff")}@font-face{font-family:Tinos;font-style:italic;font-display:swap;font-weight:400;src:url(/assets/tinos-latin-400-italic-BYAl0kbZ.woff2)format("woff2"),url(/assets/tinos-latin-400-italic-HcuZF3H0.woff)format("woff")}@font-face{font-family:Tinos;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/tinos-latin-700-normal-qGf2y18O.woff2)format("woff2"),url(/assets/tinos-latin-700-normal-CjcRkLdR.woff)format("woff")}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--paper:#f5f4f0;--paper-deep:#edebe5;--surface:#fff;--teal:#0f5c57;--teal-deep:#0b4e4a;--teal-ink:#072e2b;--teal-wash:#dcebe8;--teal-mist:#cfe3df;--ink:#1f2328;--ink-soft:#3d4148;--graphite:#5b5f66;--rule:#e2dfd7;--rule-strong:#d3d0c8;--pine:#2d6a3e;--pine-wash:#e5f0e7;--rust:#9a4a12;--rust-wash:#f8ecdf;--gutter:clamp(1.25rem, 5vw, 5rem);--content:1320px;scroll-behavior:smooth;font-family:Tinos,Times New Roman,Times,serif;font-size:17px;line-height:1.5}*,:before,:after{box-sizing:border-box}body{background:var(--paper);color:var(--ink);margin:0;overflow-x:clip}button,input{font:inherit}button{cursor:pointer}a{color:inherit}img,svg{max-width:100%}h1,h2,h3,h4,p,figure,dl,dd{margin:0}h1,h2,h3,h4{letter-spacing:-.022em;text-wrap:balance;font-weight:400;line-height:1.06}p{text-wrap:pretty}em{font-weight:400}::selection{background:var(--teal-mist);color:var(--teal-ink)}:focus-visible{outline:2px solid var(--teal);outline-offset:4px}.svg-definitions{width:0;height:0;position:absolute;overflow:hidden}.skip-link{z-index:100;background:var(--teal);color:#fff;padding:.65rem 1rem;text-decoration:none;position:fixed;top:-5rem;left:1rem}.skip-link:focus{top:1rem}.eyebrow,.mock-label,.demo-kicker{letter-spacing:.16em;text-transform:uppercase;font-size:.76rem;font-weight:700;line-height:1.35}.eyebrow{color:var(--teal)}.section-container{max-width:var(--content);padding-inline:var(--gutter);margin-inline:auto}.site-header{z-index:20;min-height:88px;padding:1rem var(--gutter);border-bottom:1px solid var(--rule);background:var(--paper);justify-content:space-between;align-items:center;gap:2rem;display:flex;position:relative}.wordmark{color:var(--teal);letter-spacing:-.06em;white-space:nowrap;border:2.5px solid;border-radius:10px;align-items:baseline;padding:0 13px 8px 10px;font-size:31px;line-height:1;text-decoration:none;display:inline-flex}.wordmark__f{fill:currentColor;flex:none;width:23px;height:30px;margin-right:1px;transform:translateY(7px)}.site-nav{align-items:center;gap:clamp(1.2rem,2.7vw,2.8rem);margin-left:auto;display:flex}.site-nav a{color:var(--ink-soft);white-space:nowrap;font-size:1rem;text-decoration:none}.site-nav a:hover{color:var(--teal);text-underline-offset:5px;text-decoration:underline}.button{white-space:nowrap;border:2px solid;border-radius:6px;justify-content:center;align-items:center;gap:.7rem;min-height:42px;padding:.55rem 1.2rem;font-size:1rem;font-weight:700;line-height:1.1;text-decoration:none;transition:translate .16s,box-shadow .16s,background-color .16s;display:inline-flex}.button:hover{translate:-1px -1px}.button:active{box-shadow:none;translate:3px 3px}.button--primary{color:#fff;background:var(--teal);border-color:var(--teal);box-shadow:3px 3px 0 var(--teal-ink)}.button--primary:hover{background:var(--teal-deep);box-shadow:4px 4px 0 var(--teal-ink)}.button--secondary{color:var(--ink);background:var(--surface);border-color:var(--ink);box-shadow:3px 3px 0 var(--teal)}.button--secondary:hover{box-shadow:4px 4px 0 var(--teal)}.button--paper{color:var(--teal-ink);background:var(--paper);border-color:var(--paper);box-shadow:3px 3px 0 var(--teal-ink)}.button--paper:hover{box-shadow:4px 4px 0 var(--teal-ink);background:#fff}.button:disabled{cursor:wait;opacity:.65;box-shadow:none;translate:none}.hero{max-width:1660px;padding:clamp(2.5rem, 4vw, 4rem) var(--gutter) 5rem;grid-template-columns:minmax(0,1fr);place-items:center;row-gap:1.1rem;margin:auto;display:grid;position:relative}.hero:before{content:"";z-index:-1;pointer-events:none;background:repeating-linear-gradient(#0000 0 59px,#e2dfd770 59px 60px);position:absolute;inset:0;-webkit-mask-image:linear-gradient(90deg,#0008,#0000 75%);mask-image:linear-gradient(90deg,#0008,#0000 75%)}.hero__copy{text-align:center;width:100%;max-width:1100px}.hero h1{text-wrap:balance;letter-spacing:-.035em;margin-top:.85rem;font-size:clamp(3rem,5.4vw,5.55rem)}.hero h1 em{color:var(--teal)}.hero__summary{text-align:center;justify-self:center;width:100%;max-width:600px}.hero__lede{text-wrap:balance;max-width:52ch;color:var(--ink-soft);margin:0 auto;font-size:clamp(1.1rem,1.33vw,1.3rem);line-height:1.52}.hero__actions{flex-wrap:wrap;justify-content:center;gap:1rem;margin-top:1.1rem;display:flex}.hero__reassurance{color:var(--graphite);margin-top:.85rem;font-size:.88rem}.tiny-cross{color:var(--teal)}.hero__scroll{color:var(--teal);text-align:center;flex-direction:column;grid-column:1/-1;align-items:center;gap:.5rem;margin-top:.25rem;padding-block:.35rem;text-decoration:none;display:flex}.hero__scroll>span:first-child{font-size:.95rem}.hero__scroll-arrow{border:1px solid var(--teal);border-radius:50%;place-items:center;width:36px;height:36px;font-size:1.6rem;transition:transform .2s,background .2s;display:grid}.hero__scroll:hover .hero__scroll-arrow{background:var(--teal-wash);transform:translateY(3px)}.hero__visual{grid-column:1/-1;width:100%;min-width:0}.hero__visual figcaption{color:var(--graphite);text-align:right;margin-top:.8rem;font-size:.85rem}.hero__vertical{writing-mode:vertical-rl;color:var(--teal);letter-spacing:.18em;font-size:.68rem;font-weight:700;position:absolute;bottom:4rem;right:1.15rem}.status-pill{color:var(--rust);background:var(--rust-wash);letter-spacing:0;white-space:nowrap;border-radius:99px;padding:.24rem .65rem;font-size:.72rem;font-weight:700;display:inline-block}.status-pill--soft{background:var(--teal-wash);color:var(--teal-deep)}.workspace-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.6rem;margin-bottom:1rem;display:flex}.workspace-heading>span:last-child{color:var(--graphite);font-size:.94rem}.workspace-features{text-align:left;grid-template-columns:repeat(3,1fr);gap:2rem;margin-top:2.2rem;display:grid}.workspace-features>div{border-top:2px solid var(--teal);padding-top:1rem}.workspace-features span{color:var(--teal);text-transform:uppercase;letter-spacing:.12em;margin-bottom:.5rem;font-size:.7rem;font-weight:700;display:block}.workspace-features strong{font-size:1.16rem;line-height:1.2;display:block}.workspace-features p{color:var(--graphite);margin-top:.65rem;font-size:1rem}.professor-workspace{border:1px solid var(--rule-strong);background:var(--paper);box-shadow:10px 10px 0 var(--teal-wash);border-radius:14px;grid-template-columns:54px minmax(0,1fr);display:grid;overflow:hidden}.professor-workspace__rail{background:var(--teal);color:var(--teal-mist);flex-direction:column;align-items:center;gap:1.8rem;padding:1.3rem .5rem;font-size:1.3rem;display:flex}.professor-workspace__rail svg{fill:#fff;width:26px;height:36px;margin-bottom:1rem}.professor-workspace__active{text-align:center;background:var(--paper);width:39px;color:var(--teal);border-radius:5px 0 0 5px;padding:.2rem}.professor-workspace__main{min-width:0;padding:clamp(1rem,2.3vw,2rem)}.professor-workspace__heading{justify-content:space-between;align-items:start;gap:1rem;display:flex}.professor-workspace__heading h2{margin-top:.5rem;font-size:clamp(1.6rem,2.8vw,2.5rem)}.professor-workspace__toolbar{color:var(--graphite);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.7rem;margin:1.4rem 0 1rem;font-size:.88rem;display:flex}.publish-label{color:var(--teal-deep);font-weight:700}.professor-workspace__columns{grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);align-items:start;gap:1.5rem;display:grid}.review-video{min-width:0}.review-video__stage{aspect-ratio:16/10;background:var(--ink);border-radius:10px;min-height:220px;position:relative;overflow:hidden}.review-slide{background:#fff;flex-direction:column;padding:1.2rem;display:flex;position:absolute;inset:0}.review-slide>.mock-label,.review-slide h3{max-width:77%}.review-slide>.mock-label{font-size:.58rem}.review-slide h3{margin-top:1.1rem;font-size:clamp(1rem,1.8vw,1.6rem)}.review-slide h3 em{color:var(--teal)}.review-slide__equation{color:var(--teal);margin-top:1rem;font-size:clamp(1.3rem,2.5vw,2.2rem)}.review-slide svg{flex:1;width:100%;min-height:0}.review-slide__axes{stroke:var(--rule-strong);fill:none}.review-slide__vector{fill:none;stroke:var(--teal);stroke-width:3px}.review-slide__original{fill:none;stroke:var(--rust);stroke-width:3px}.review-slide text{fill:var(--teal-deep);font:italic 17px Tinos,serif}.review-camera{z-index:2;border:2px solid var(--teal);background:var(--teal-deep);border-radius:6px;width:18%;position:absolute;top:.65rem;right:.65rem;overflow:hidden;box-shadow:0 4px 12px #1f232830}.review-camera svg{width:100%;display:block}.review-camera span{text-align:center;color:#fff;padding:.15rem;font-size:.62rem;display:block}.review-video__badge{background:var(--teal-deep);color:#fff;border-radius:4px;max-width:calc(100% - 1.4rem);padding:.3rem .6rem;font-size:.72rem;position:absolute;bottom:.7rem;left:.7rem}.review-video__animation{background:var(--ink);color:var(--teal-mist);padding:1rem;display:none;position:absolute;inset:0}.review-video__animation>span{margin-bottom:.4rem;font-size:.8rem;display:block}.review-video__animation svg{width:100%;height:calc(100% - 2rem)}.review-video__animation text{fill:var(--teal-mist);font:italic 17px Tinos,serif}.review-vector-guide{fill:none;stroke:var(--teal-mist);stroke-dasharray:5 5;stroke-opacity:.4}.review-moving-vector{transform-origin:105px 185px}.review-moving-vector path{fill:none;stroke:#80b7ff;stroke-width:3px}.review-small-vector{fill:none;stroke:#e7ae74;stroke-width:3px}.professor-demo[data-review=animations] .review-video__animation{display:block}.professor-demo[data-review=animations] .review-moving-vector{animation:2.5s ease-in-out both stretch-vector}.professor-demo.is-paused .review-moving-vector{animation-play-state:paused}@keyframes stretch-vector{0%{transform:scale(.3333)}to{transform:scale(1)}}.review-timeline{background:var(--paper-deep);border-radius:4px;height:42px;margin-top:.6rem;position:relative}.review-timeline__cut{background:#777a7c;height:20px;position:absolute;top:12px}.review-timeline__animation{color:#fff;background:#1e3a67;border:2px solid #fff;border-radius:50%;place-items:center;width:24px;height:24px;font-size:.8rem;font-weight:700;display:grid;position:absolute;top:0;left:24%}.review-timeline__question{color:var(--teal);font-size:1rem;line-height:1;position:absolute;bottom:0}.review-timeline__playhead{background:var(--teal);width:2px;height:100%;transition:left .6s;position:absolute;top:0;left:3%}.professor-demo[data-review=animations] .review-timeline__playhead{left:26%}.professor-demo[data-review=questions] .review-timeline__playhead{left:60%}.review-timeline__legend{color:var(--graphite);flex-wrap:wrap;align-items:center;gap:.3rem 1rem;margin-top:.5rem;font-size:.73rem;display:flex}.review-timeline__legend b{color:var(--teal)}.cut-key{background:#777a7c;width:9px;height:9px;display:inline-block}.review-newton{border:1px solid var(--rule);background:#fff;border-radius:9px;margin-top:1rem;padding:1rem}.review-newton p{margin-top:.4rem;font-size:1rem}.review-inspector{min-width:0}.review-tabs{border-bottom:1px solid var(--rule-strong);gap:.8rem;display:flex}.review-tabs button{min-height:42px;color:var(--graphite);background:0 0;border:0;border-bottom:2px solid #0000;padding:.5rem .25rem;font-size:.95rem}.review-tabs button[aria-selected=true]{border-color:var(--teal);color:var(--teal);font-weight:700}.review-panel{min-height:340px;padding:1.2rem 0}.review-panel[hidden]{display:none}.review-panel h3{margin-top:.8rem;font-size:clamp(1.3rem,2.2vw,1.8rem)}.review-cut{border-top:1px solid var(--rule);margin-top:1rem;padding-top:.9rem}.review-cut>div{justify-content:space-between;gap:.5rem;font-size:.9rem;display:flex}.review-cut>div>span{color:var(--graphite);white-space:nowrap;font-size:.8rem}.review-cut p{color:var(--ink-soft);margin-top:.4rem;font-size:.9rem}.review-cut small{color:var(--rust);margin-top:.4rem;font-size:.8rem;display:block}.review-panel blockquote{border-left:2px solid var(--teal);margin:1.2rem 0;padding:.7rem 0 .7rem .8rem;font-size:1rem}.review-insertion{border:1px solid var(--teal-mist);background:var(--teal-wash);border-radius:6px;align-items:center;gap:.7rem;padding:.8rem;display:flex}.review-insertion>span{color:#fff;background:#1e3a67;border-radius:50%;place-items:center;width:24px;height:24px;font-size:.85rem;display:grid}.review-insertion strong{font-size:.93rem}.review-insertion p{color:var(--graphite);font-size:.8rem}.review-panel__note{color:var(--graphite);margin-top:1.2rem;font-size:.85rem}.review-panel__question{margin:1.2rem 0 .8rem;font-size:1rem}.review-answer{border:1px solid var(--rule-strong);border-radius:5px;margin-top:.5rem;padding:.65rem;font-size:.9rem}.review-answer--correct{background:var(--pine-wash);border-color:var(--pine);color:var(--pine)}.workspace-status{border-top:1px solid var(--rule);color:var(--teal-deep);margin-top:.7rem;padding-top:.9rem;font-size:.9rem}@media (width<=1100px){.professor-workspace__columns{grid-template-columns:1.2fr 1fr;gap:1rem}.review-tabs{gap:.5rem}.review-slide{padding:.8rem}}@media (width<=850px){.professor-workspace__columns{grid-template-columns:1fr}.review-panel{min-height:325px}.review-slide h3{font-size:1.6rem}.review-slide__equation{font-size:2.2rem}}@media (width<=590px){.professor-workspace{box-shadow:5px 5px 0 var(--teal-wash);grid-template-columns:minmax(0,1fr)}.professor-workspace__rail{display:none}.professor-workspace__main{padding:.9rem}.professor-workspace__heading{flex-wrap:wrap}.review-slide{padding:.6rem}.review-slide h3{margin-top:.6rem;font-size:1.1rem}.review-slide__equation{margin-top:.6rem;font-size:1.6rem}.review-camera{top:.5rem;right:.5rem}.review-camera span{font-size:.45rem}.review-video__badge{font-size:.62rem;bottom:.4rem;left:.4rem}.workspace-heading .button{font-size:.85rem}}.thesis{background:var(--paper-deep)}.thesis__stage{position:relative}.thesis__scene{min-height:72svh;padding:5rem max(var(--gutter), calc((100vw - 1160px) / 2));border-bottom:1px solid var(--rule-strong);flex-direction:column;justify-content:center;align-items:flex-start;display:flex}.thesis__scene h2{max-width:1020px;margin-top:1.2rem;font-size:clamp(2.4rem,5.5vw,5.2rem)}.thesis__scene h2 em{color:var(--teal)}.thesis__scene>p:last-child{max-width:730px;color:var(--ink-soft);margin-top:2rem;font-size:clamp(1.1rem,1.7vw,1.35rem)}.story-flow{align-items:center;gap:clamp(.6rem,2vw,1.8rem);width:100%;max-width:870px;margin-top:2.2rem;display:flex}.story-flow span{border:2px solid var(--ink-soft);border-radius:7px;flex:1;min-width:0;padding:1rem;font-size:clamp(1rem,1.6vw,1.35rem);line-height:1.2}.story-flow small{color:var(--graphite);font-size:.75em}.story-flow i{color:var(--teal);font-size:1.7rem;font-style:normal}.burden{flex-wrap:wrap;gap:.75rem;max-width:920px;margin-top:2.4rem;display:flex}.burden span{border:1px solid var(--teal);background:var(--surface);color:var(--teal-ink);box-shadow:3px 3px 0 var(--teal-wash);border-radius:6px;padding:.6rem 1rem;font-size:1.12rem}.thesis__scene--two{background:var(--teal);color:var(--paper);border:0}.thesis__scene--two .eyebrow,.thesis__scene--two h2 em,.thesis__scene--two>p:last-child{color:var(--teal-mist)}.story-flow--answer span{border-color:var(--teal-mist)}.story-flow--answer small,.story-flow--answer i{color:var(--teal-mist)}.thesis__skip{right:var(--gutter);color:var(--teal);font-size:.9rem;position:absolute;bottom:1.2rem}.thesis--enhanced .thesis__stage{height:100svh;min-height:680px;overflow:hidden}.thesis--enhanced .thesis__scene{border:0;min-height:0;padding-top:5rem;padding-bottom:5rem;position:absolute;inset:0}.thesis--enhanced .thesis__scene--two{background:0 0}.thesis--enhanced .thesis__skip{z-index:5;color:var(--ink-soft)}.intro{padding-top:clamp(6rem,12vw,11rem);padding-bottom:clamp(5rem,10vw,9rem)}.intro h2,.comparison h2,.professors h2{margin-top:1.25rem;font-size:clamp(2.6rem,4.7vw,4.6rem)}.intro h2 em,.comparison h2 em,.professors h2 em{color:var(--teal)}.intro>p:last-child{max-width:630px;color:var(--ink-soft);margin-top:1.6rem;font-size:1.25rem}.walkthrough{padding-bottom:5rem}.walkthrough__row{border-top:1px solid var(--rule-strong);grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);align-items:center;gap:clamp(2.5rem,7vw,7rem);padding:clamp(4rem,7vw,7rem) 0;display:grid}.walkthrough__row--reverse{grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr)}.walkthrough__row--reverse .walkthrough__copy{grid-area:1/2}.walkthrough__row--reverse .product-frame{grid-area:1/1}.walkthrough__copy{max-width:445px}.walkthrough__copy h3{margin-top:1.25rem;font-size:clamp(2.35rem,3.7vw,3.8rem)}.walkthrough__copy h3 em{color:var(--teal)}.walkthrough__copy>p:not(.eyebrow){color:var(--ink-soft);margin-top:1.6rem;font-size:1.12rem;line-height:1.58}.walkthrough__copy .walkthrough__note{border-left:3px solid var(--teal);color:var(--teal);padding-left:1rem;font-weight:700}.product-frame{border:1px solid var(--rule);background:var(--surface);border-radius:14px;min-width:0;overflow:hidden}.product-frame__bar{border-bottom:1px solid var(--rule);min-height:45px;color:var(--graphite);justify-content:space-between;align-items:center;gap:.6rem;padding:.5rem 1rem;font-size:.78rem;display:flex}.product-frame__bar>span:nth-child(2){text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.product-frame__dots{color:var(--teal);letter-spacing:.16em;white-space:nowrap;font-size:.5rem}.product-frame figcaption{border-top:1px solid var(--rule);color:var(--graphite);padding:.85rem 1.2rem 1.1rem;font-size:.83rem}.mock-label{color:var(--teal);font-size:.66rem}.edit-mock{padding:clamp(1.2rem,3vw,2rem)}.edit-mock__time{color:var(--graphite);font-variant-numeric:tabular-nums;justify-content:space-between;margin:1.7rem 0 .5rem;font-size:.74rem;display:flex}.edit-mock__track{background:repeating-linear-gradient(90deg, var(--teal) 0 5px, var(--teal-deep) 5px 8px, var(--teal) 8px 15px);border-radius:5px;align-items:center;height:68px;display:flex;position:relative}.edit-mock__cut{z-index:1;background:var(--rust-wash);border:1px dashed var(--rust);width:19%;min-width:90px;color:var(--rust);text-align:center;padding:.48rem .4rem;font-size:.75rem;line-height:1.1;position:absolute;left:39%}.edit-mock__cut small{font-size:.63rem}.edit-mock__playhead{background:var(--ink);width:2px;height:92px;position:absolute;top:-12px;left:31%}.edit-mock__chapters{grid-template-columns:repeat(3,1fr);gap:.5rem;margin:1.1rem 0 1.6rem;display:grid}.edit-mock__chapters span{border:1px solid var(--rule);color:var(--ink-soft);border-radius:5px;padding:.5rem;font-size:.75rem}.newton-note{background:var(--paper);border:1px solid var(--rule);border-radius:7px;padding:1rem 1.1rem}.newton-note>span,.animation-frame__revision>span{color:var(--teal);letter-spacing:.14em;font-size:.66rem;font-weight:700}.newton-note p{color:var(--ink);margin:.4rem 0;font-size:1.05rem}.newton-note small{color:var(--graphite)}.animation-frame__prompt{border-left:3px solid var(--teal);background:var(--paper);margin:1.2rem 1.2rem 0;padding:.8rem 1rem;font-size:1rem}.concept-graph{width:min(100%,530px);margin:.2rem auto;padding:0 1rem;display:block;overflow:visible}.concept-graph__axes{fill:none;stroke:var(--rule-strong);stroke-width:2px}.concept-graph__curve{fill:none;stroke:var(--teal);stroke-width:3.5px}.concept-graph__secant{stroke:var(--rust);stroke-width:3px}.concept-graph__tangent{stroke:var(--teal);stroke-width:2.5px;stroke-dasharray:7 7;opacity:.38}.animation-frame.is-complete .concept-graph__tangent{opacity:1}.concept-graph__fixed{fill:var(--teal)}.concept-graph__moving{fill:var(--rust)}.concept-graph text{fill:var(--graphite);font-family:Tinos,serif;font-size:16px}.animation-frame__controls{flex-wrap:wrap;align-items:center;gap:1rem;padding:0 1.2rem 1rem;display:flex}.animation-frame__controls .button{min-height:34px;font-size:.87rem}.animation-frame__controls>span{color:var(--graphite);font-size:.85rem}.animation-frame__revision{background:var(--teal-wash);border-radius:6px;margin:0 1.2rem 1.3rem;padding:.7rem;font-size:.92rem}.question-frame__body{padding:clamp(1.2rem,3vw,2rem)}.question-frame h4{max-width:510px;margin:1.25rem 0 1.4rem;font-size:clamp(1.4rem,2.2vw,2rem)}.question-frame__choices{gap:.65rem;display:grid}.question-frame__choices div{border:1px solid var(--rule-strong);border-radius:6px;justify-content:space-between;gap:1rem;padding:.75rem .9rem;font-size:.92rem;display:flex}.question-frame__choices .question-frame__correct{border-color:var(--pine);background:var(--pine-wash);color:var(--pine);font-weight:700}.question-frame__feedback{border-left:3px solid var(--pine);background:var(--pine-wash);color:var(--ink-soft);margin-top:1.3rem;padding:.9rem 1rem;font-size:.88rem}.question-frame__feedback strong{color:var(--pine)}.question-frame__feedback span{color:var(--teal);text-underline-offset:3px;margin-top:.3rem;text-decoration:underline;display:block}.lesson-insert{border-top:1px solid var(--rule);align-items:center;gap:.8rem;margin:0 1.2rem 1.3rem;padding-top:1rem;display:flex}.lesson-insert__icon{color:#fff;background:#1e3a67;border-radius:50%;flex:none;place-items:center;width:30px;height:30px;font-weight:700;display:grid}.lesson-insert strong,.lesson-insert div>span{display:block}.lesson-insert div>span{color:var(--graphite);font-size:.85rem}.analytics{padding-top:3rem;padding-bottom:clamp(5rem,9vw,9rem)}.analytics__intro{grid-template-columns:1.2fr .8fr;align-items:end;gap:3rem;margin-bottom:3rem;display:grid}.analytics__intro h2{margin-top:1.2rem;font-size:clamp(2.6rem,4.7vw,4.6rem)}.analytics__intro h2 em,.analytics-takeaway h3 em{color:var(--teal)}.analytics__intro>p{color:var(--ink-soft);font-size:1.12rem;line-height:1.6}.analytics-dashboard{border:1px solid var(--rule-strong);background:var(--paper);box-shadow:10px 10px 0 var(--teal-wash);border-radius:14px;grid-template-columns:54px minmax(0,1fr);display:grid;overflow:hidden}.analytics-rail{background:var(--teal);color:var(--teal-mist);flex-direction:column;align-items:center;gap:1.8rem;padding:1.3rem .5rem;font-size:1.3rem;display:flex}.analytics-rail svg{fill:#fff;width:26px;height:36px;margin-bottom:1rem}.analytics-rail__active{background:var(--paper);width:39px;color:var(--teal);text-align:center;border-radius:5px 0 0 5px;padding:.2rem}.analytics-dashboard__main{min-width:0;padding:clamp(1rem,2.4vw,2rem)}.analytics-dashboard__heading{justify-content:space-between;align-items:start;gap:1rem;margin:.3rem 0 1.5rem;display:flex}.analytics-dashboard__heading h3{margin:.4rem 0;font-size:2.1rem}.analytics-dashboard__heading div>p:last-child{color:var(--graphite);font-size:.92rem}.analytics-dashboard>figcaption{background:var(--surface);border-top:1px solid var(--rule);color:var(--graphite);grid-column:1/-1;padding:.85rem 1.3rem;font-size:.83rem}.analytics-card{border:1px solid var(--rule);background:var(--surface);border-radius:12px;min-width:0;margin-top:1rem;padding:clamp(1rem,2vw,1.5rem)}.analytics-card h4{font-size:1.4rem}.analytics-card>p,.question-report>div>p:not(.mock-label){color:var(--graphite);margin-top:.5rem;font-size:.94rem}.analytics-metrics{grid-template-columns:1fr 1fr;gap:1rem;display:grid}.analytics-metrics .analytics-card{margin:0}.analytics-metrics__value{justify-content:space-between;align-items:center;gap:1rem;margin:.6rem 0;display:flex}.analytics-metrics__value strong{letter-spacing:-.04em;font-size:clamp(2.7rem,4.2vw,4rem);font-weight:400;line-height:1}.analytics-metrics__value svg{fill:none;width:180px;max-width:42%;stroke:var(--teal);stroke-width:2px}.attention__heading{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.6rem;display:flex}.attention__heading>span{color:var(--graphite);font-size:.85rem}.attention__chart{width:100%;margin-top:1.25rem;display:block;overflow:visible}.attention__chart text{fill:var(--graphite);font:12px Tinos,serif}.attention__grid{fill:none;stroke:var(--rule);stroke-width:1px}.attention__chapters{fill:none;stroke:var(--rule-strong);stroke-width:1px}.attention__area{fill:var(--teal-wash)}.attention__line{fill:none;stroke:var(--teal);stroke-width:2.5px}.attention__legend{color:var(--graphite);flex-wrap:wrap;justify-content:space-between;gap:.5rem 1rem;margin-top:.35rem;font-size:.8rem;display:flex}.attention__legend>span:last-child{align-items:center;gap:.4rem;display:flex}.attention__legend i{background:linear-gradient(90deg, #426e9e, var(--paper), #b45d24);width:65px;height:9px;display:inline-block}.report-table-scroll{overscroll-behavior-x:contain;margin-top:1rem;overflow-x:auto}.report-table{border-collapse:collapse;text-align:left;font-variant-numeric:tabular-nums;width:100%;min-width:650px;font-size:.9rem}.report-table th,.report-table td{border-bottom:1px solid var(--rule);padding:.95rem .6rem}.report-table thead th{color:var(--graphite);text-transform:uppercase;letter-spacing:.1em;font-size:.65rem;font-weight:700}.report-table tbody th{width:36%;font-weight:400}.report-table tbody th>span{color:var(--graphite);margin-right:.5rem;font-size:.8rem;display:inline-block}.report-table tbody td{white-space:nowrap}.report-table tbody tr:last-child th,.report-table tbody tr:last-child td{border:0}.report-table__highlight{background:var(--rust-wash)}.score-bar{vertical-align:middle;background:linear-gradient(to right, var(--teal) var(--score), var(--paper-deep) var(--score));border-radius:9px;width:40px;height:5px;margin-right:.4rem;display:inline-block}.analytics-card .table-hint{font-size:.8rem;display:none}.question-report{grid-template-columns:1fr 1fr;align-items:center;gap:2rem;display:grid}.question-report h4{margin-top:.7rem}.question-report__result strong{color:var(--rust);font-size:1.4rem}.answer-distribution{min-width:0}.answer-distribution>div{color:var(--ink-soft);grid-template-columns:92px minmax(0,1fr) 18px;align-items:center;gap:.5rem;padding:.35rem 0;font-size:.9rem;display:grid}.answer-distribution i{background:linear-gradient(to right, var(--rust) var(--share), var(--paper-deep) var(--share));border-radius:3px;height:10px}.answer-distribution .answer-distribution__correct{color:var(--pine);font-weight:700}.answer-distribution__correct i{background:linear-gradient(to right, var(--pine) var(--share), var(--paper-deep) var(--share))}.answer-distribution p{color:var(--graphite);margin-top:.6rem;font-size:.8rem}.student-report summary{cursor:pointer;color:var(--teal-deep);font-size:1.15rem}.student-report summary>span{color:var(--graphite);margin-left:.6rem;font-size:.85rem}.student-report[open] summary{margin-bottom:1rem}.analytics-takeaway{border-left:3px solid var(--teal);max-width:760px;margin:3.5rem auto 0;padding-left:1.5rem}.analytics-takeaway h3{margin:.8rem 0 1.1rem;font-size:clamp(1.7rem,3vw,2.6rem)}.analytics-takeaway>p:not(.eyebrow){color:var(--ink-soft);font-size:1.1rem}.analytics-takeaway .analytics-takeaway__note{color:var(--graphite);margin-top:1rem;font-size:.9rem}.comparison{border-top:1px solid var(--rule-strong);padding-top:clamp(5rem,8vw,8rem);padding-bottom:clamp(6rem,9vw,9rem)}.comparison__table-wrap{margin-top:2.5rem}.comparison table{border-collapse:collapse;text-align:left;width:100%}.comparison th,.comparison td{border-bottom:1px solid var(--rule-strong);vertical-align:top;padding:1.25rem;font-size:1.05rem}.comparison thead th{color:var(--graphite);letter-spacing:.1em;text-transform:uppercase;font-size:.83rem}.comparison tbody th{width:21%;font-weight:700}.comparison tbody td{width:39.5%;color:var(--ink-soft)}.comparison tbody td:last-child{background:var(--teal-wash);color:var(--teal-ink);font-weight:700}.professors{border-top:1px solid var(--rule-strong);grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(3rem,8vw,8rem);padding-top:clamp(5rem,9vw,9rem);padding-bottom:clamp(6rem,10vw,10rem);display:grid}.professors__heading>p:last-child{max-width:410px;color:var(--ink-soft);margin-top:1.4rem;font-size:1.12rem}.professors__facts>div{border-top:1px solid var(--rule-strong);grid-template-columns:minmax(130px,.65fr) minmax(0,1.35fr);gap:1.2rem;padding:1.3rem 0;display:grid}.professors__facts dt{color:var(--teal-deep);font-weight:700}.professors__facts dd{color:var(--ink-soft)}.closing{margin:0 var(--gutter) 4rem;background:var(--teal);color:#fff;border-radius:14px}.closing__inner{text-align:center;max-width:900px;margin:auto;padding:clamp(4.5rem,9vw,8rem) 1.4rem}.closing .eyebrow{color:var(--teal-mist)}.closing h2{margin-top:1.2rem;font-size:clamp(2.7rem,6vw,5.2rem)}.closing h2 em{color:var(--teal-mist)}.closing__inner>p:not(.eyebrow){color:var(--teal-mist);margin-top:1.4rem;font-size:1.2rem}.demo-form{text-align:left;max-width:580px;margin:2.2rem auto 0}.demo-form label{color:#fff;margin-bottom:.5rem;font-size:.94rem;font-weight:700;display:block}.demo-form__row{align-items:stretch;gap:.75rem;display:flex}.demo-form input{min-width:0;min-height:52px;color:var(--ink);background:#fff;border:2px solid #fff;border-radius:6px;flex:1;padding:.7rem 1rem;font-size:1rem}.demo-form input:focus-visible,.closing .button:focus-visible{outline-color:var(--teal-mist)}.demo-form__status{color:#fff;min-height:1.6rem;margin-top:.7rem;font-size:.93rem}.demo-form[data-state=success] .demo-form__row{display:none}.demo-form[data-state=success] .demo-form__status{border:1px solid var(--teal-mist);background:var(--teal-deep);text-align:center;border-radius:6px;padding:.8rem 1rem;font-size:1.15rem}.site-footer{max-width:var(--content);padding:0 var(--gutter) 2.2rem;color:var(--graphite);justify-content:space-between;align-items:end;gap:2rem;margin:auto;font-size:.82rem;display:flex}.wordmark--footer{color:var(--teal);font-size:24px}.wordmark--footer .wordmark__f{width:18px;height:24px;transform:translateY(5px)}.site-footer p{letter-spacing:.18em;text-transform:uppercase;font-size:.72rem}.site-footer__maker{vertical-align:-.02em;width:.67em;height:.69em;margin-right:.22em;display:inline-block}@media (width<=1100px){.hero{row-gap:1.1rem}.hero h1{font-size:clamp(2.7rem,5vw,4rem)}.hero__vertical{display:none}}@media (width<=850px){.site-header{flex-wrap:wrap;gap:1.2rem}.site-nav{border-top:1px solid var(--rule);order:3;justify-content:space-between;gap:.8rem;width:100%;margin:0;padding-top:.7rem}.hero{grid-template-columns:1fr;row-gap:1.5rem;max-width:710px}.hero__summary{max-width:440px}.hero__lede{max-width:38ch}.hero__visual{max-width:none}.workspace-features{grid-template-columns:1fr;gap:1.2rem}.analytics__intro{grid-template-columns:1fr;gap:1.5rem}.analytics-card .table-hint{display:block}.question-report{grid-template-columns:1fr;gap:1.2rem}.walkthrough__row,.walkthrough__row--reverse{grid-template-columns:1fr;gap:2.5rem}.walkthrough__row--reverse .walkthrough__copy,.walkthrough__row--reverse .product-frame{grid-area:auto/1}.walkthrough__copy{max-width:650px}.professors{grid-template-columns:1fr;gap:2rem}}@media (width<=590px){.site-header{min-height:72px}.wordmark{font-size:25px}.wordmark__f{width:19px;height:25px;transform:translateY(6px)}.site-header__cta{min-height:38px;padding-inline:.7rem;font-size:.82rem}.site-nav a{font-size:.91rem}.hero{padding-top:2.5rem;padding-bottom:5rem}.hero h1{font-size:clamp(2.6rem,11vw,3.4rem)}.hero__lede{font-size:1.08rem}.hero__actions{align-items:flex-start}.workspace-heading>span:last-child{font-size:.84rem}.analytics-dashboard{box-shadow:5px 5px 0 var(--teal-wash);grid-template-columns:minmax(0,1fr)}.analytics-rail{display:none}.analytics-dashboard__main{padding:.7rem}.analytics-dashboard__heading{flex-wrap:wrap;padding:.3rem}.analytics-metrics{grid-template-columns:1fr}.analytics-metrics__value strong{font-size:3rem}.analytics-card{padding:1rem}.attention__chart text{font-size:20px}.student-report summary>span{margin:.3rem 0 0;display:block}.analytics-takeaway{padding-left:1rem}.thesis__scene{min-height:0;padding-block:5rem}.thesis__scene h2{font-size:clamp(2.3rem,9vw,3rem)}.story-flow{flex-direction:column;align-items:stretch;gap:.5rem}.story-flow i{align-self:center;rotate:90deg}.burden span{font-size:1rem}.thesis__skip{display:none}.edit-mock__chapters{grid-template-columns:1fr}.edit-mock__cut{font-size:.65rem}.comparison table,.comparison tbody,.comparison tr,.comparison th,.comparison td{display:block;width:100%!important}.comparison thead{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.comparison tbody tr{border-bottom:1px solid var(--rule-strong);padding:1.25rem 0}.comparison th,.comparison td{border:0;padding:.3rem 0}.comparison td:before{content:"Preparing it yourself";color:var(--graphite);letter-spacing:.1em;text-transform:uppercase;font-size:.75rem;display:block}.comparison td:last-child{margin-top:.6rem;padding:.65rem}.comparison td:last-child:before{content:"With Flipped";color:var(--teal-deep)}.professors__facts>div{grid-template-columns:1fr;gap:.3rem}.demo-form__row{flex-direction:column}.site-footer{flex-wrap:wrap;gap:1rem}.site-footer p{order:3;width:100%}}@media (width<=410px){.site-header__cta{font-size:.74rem}}@media (prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.professor-demo{--demo-progress:0%;max-width:1040px;margin-inline:auto}.demo-fit-content{transform-origin:top;display:flow-root}.demo-fit-shell{position:relative}#workspace-title{scroll-margin-top:24px}.professor-demo .workspace-heading{margin-bottom:1.2rem}.demo-theater{perspective:1400px;background:radial-gradient(at 50% 15%,#f5f4f0 5%,#e4ece6 75%,#d8e7e1);border:1px solid #c9dbd5;border-radius:20px;padding:0 1.6rem 1.3rem;box-shadow:0 25px 55px -35px #072e2b55}.demo-chrome{height:40px;color:var(--graphite);justify-content:space-between;align-items:center;gap:1rem;font-size:.72rem;display:flex}.demo-chrome__lights{gap:5px;display:flex}.demo-chrome__lights i{background:#a5bab1;border-radius:50%;width:6px;height:6px}.demo-chrome__live{color:var(--teal-deep);font-size:.66rem}.professor-demo .professor-workspace{transform-origin:50% 55%;border-color:#c9d4cc;transition:transform .8s cubic-bezier(.22,1,.36,1),box-shadow .8s;transform:rotateX(1deg)scale(.992);box-shadow:0 10px 25px -12px #072e2b44}.professor-demo.is-playing .professor-workspace,.professor-demo:focus-within .professor-workspace{transform:none;box-shadow:0 14px 30px -16px #072e2b66}.professor-demo .professor-workspace__main{padding:1rem}.professor-demo .professor-workspace__heading h2{font-size:clamp(1.6rem,2.3vw,2rem)}.professor-demo .professor-workspace__toolbar{margin:1.1rem 0 .85rem;font-size:.8rem}.professor-demo .professor-workspace__columns{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:1.3rem}.professor-demo .review-video__stage{aspect-ratio:16/9}.professor-demo .review-slide h3{font-size:clamp(1rem,1.7vw,1.4rem)}.professor-demo .review-slide__equation{font-size:1.8rem}.professor-demo .review-slide{padding:1rem}.professor-demo .review-newton{margin-top:.8rem;padding:.7rem .85rem}.professor-demo .review-newton p{min-height:2.2em;font-size:.9rem}.demo-scenes{position:relative}.professor-demo .review-panel{min-height:330px}.professor-demo .review-panel:not([hidden]){animation:.65s cubic-bezier(.22,1,.36,1) both panel-arrive}.professor-demo .review-panel h3{font-size:clamp(1.3rem,2vw,1.7rem)}.professor-demo .review-panel blockquote{font-size:.94rem}.professor-demo[data-review=cuts].is-playing .review-cut{animation:.7s .6s both detail-arrive}.professor-demo[data-review=cuts].is-playing .review-cut+.review-cut{animation-delay:1.5s}.professor-demo[data-review=animations] .review-insertion{animation:.7s .5s both detail-arrive}.professor-demo[data-review=animations] .review-timeline__animation{animation:.6s .7s both marker-arrive}.professor-demo[data-review=questions] .review-answer{animation:.65s .2s both detail-arrive}.professor-demo[data-review=questions] .review-answer--correct{animation-delay:.8s}.professor-demo[data-review=questions] .review-timeline__question{animation:.6s .7s both marker-arrive}.professor-demo .review-video__animation{animation:.8s cubic-bezier(.22,1,.36,1) both animation-arrive}.professor-demo[data-review=animations] .review-moving-vector{animation-duration:3.5s}.professor-demo.is-paused *,.professor-demo.is-paused :before{animation-play-state:paused!important}.demo-scene-caption{justify-content:space-between;align-items:center;gap:1rem;min-height:65px;padding:1.3rem .4rem 0;display:flex}.demo-scene-caption__number{color:var(--teal);letter-spacing:.12em;flex:none;font-size:.67rem}.demo-scene-caption p{color:var(--teal-ink);flex:1;font-size:1.1rem;line-height:1.2}.demo-scene-caption__detail{color:var(--graphite);font-size:.78rem}.demo-player{margin-top:1.1rem}.demo-player[hidden]{display:none}.demo-player__transport{grid-template-columns:40px minmax(0,1fr) auto;align-items:end;gap:1rem;display:grid}.demo-player__timeline{min-width:0}.demo-player__transport>.demo-play{margin-bottom:-6px}.demo-play{border:1px solid var(--rule-strong);background:var(--surface);width:40px;height:40px;color:var(--teal);border-radius:50%;flex:none;place-items:center;font-size:.9rem;display:grid;box-shadow:0 2px 3px #072e2b0d}.demo-play:hover{background:var(--teal-wash);border-color:var(--teal)}.demo-player__time{color:var(--graphite);font-variant-numeric:tabular-nums;white-space:nowrap;margin-bottom:5px;font-size:.75rem}#demo-progress{--chapter-gaps:linear-gradient(90deg, transparent calc(25% - 3px), var(--paper) calc(25% - 3px), var(--paper) calc(25% + 3px), transparent calc(25% + 3px), transparent calc(50% - 3px), var(--paper) calc(50% - 3px), var(--paper) calc(50% + 3px), transparent calc(50% + 3px), transparent calc(75% - 3px), var(--paper) calc(75% - 3px), var(--paper) calc(75% + 3px), transparent calc(75% + 3px));appearance:none;cursor:pointer;width:100%;min-width:0;height:28px;accent-color:var(--teal);background:0 0;margin:0;display:block}#demo-progress::-webkit-slider-runnable-track{background:var(--chapter-gaps), linear-gradient(90deg, var(--teal) var(--demo-progress), var(--rule-strong) var(--demo-progress));border-radius:9px;height:4px}#demo-progress::-moz-range-track{background:var(--chapter-gaps), linear-gradient(90deg, var(--teal) var(--demo-progress), var(--rule-strong) var(--demo-progress));border-radius:9px;height:4px}#demo-progress::-webkit-slider-thumb{appearance:none;border:2px solid var(--paper);background:var(--teal);border-radius:50%;width:12px;height:12px;margin-top:-4px}#demo-progress::-moz-range-thumb{border:2px solid var(--paper);background:var(--teal);border-radius:50%;width:9px;height:9px}.demo-chapters{grid-template-columns:repeat(4,1fr);gap:0;margin:0;display:grid}.demo-chapters button{min-height:43px;color:var(--graphite);text-align:left;background:0 0;border:0;align-items:baseline;gap:.5rem;padding:.4rem .3rem .1rem;font-size:.94rem;display:flex;position:relative}.demo-chapters button>span{letter-spacing:.04em;font-size:.63rem}.demo-chapters button[aria-current=step]{color:var(--teal);font-weight:700}.demo-chapters button:hover{color:var(--teal)}.professor-demo .demo-note{color:var(--graphite);text-align:center;margin-top:1.1rem;font-size:.8rem}.demo-report{background:var(--paper);flex-direction:column;gap:1rem;animation:.7s both panel-arrive;display:flex;position:absolute;inset:0}.demo-report[hidden]{display:none}.demo-report__metrics{grid-template-columns:1fr 1fr;gap:1rem;display:grid}.demo-report__metrics>div{border:1px solid var(--rule);background:#fff;border-radius:10px;padding:1rem 1.2rem}.demo-report__metrics span{text-transform:uppercase;letter-spacing:.14em;color:var(--graphite);font-size:.63rem}.demo-report__metrics strong{color:var(--teal-deep);margin:.4rem 0;font-size:2.8rem;font-weight:400;line-height:1;display:block}.demo-report__metrics p{color:var(--graphite);font-size:.8rem}.demo-report__attention{border:1px solid var(--rule);background:#fff;border-radius:10px;flex-direction:column;flex:1;min-height:0;padding:1rem 1.2rem .6rem;display:flex}.demo-report__attention>div{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.7rem;display:flex}.demo-report__attention h3{font-size:1.3rem}.demo-report__attention span{background:var(--teal-wash);color:var(--teal);border-radius:99px;padding:.2rem .6rem;font-size:.65rem}.demo-report__attention p{color:var(--graphite);margin:.5rem 0;font-size:.83rem}.demo-report__attention svg{flex:1;width:100%;min-height:90px;max-height:155px;display:block}.demo-report__attention text{fill:var(--graphite);font:12px Tinos,serif}.demo-report__trace{fill:none;stroke:var(--teal);stroke-width:2.5px;stroke-dasharray:1;animation:1.4s .3s both chart-trace}.demo-report__insight{border:1px solid var(--teal-mist);background:var(--teal-wash);border-radius:9px;align-items:center;gap:1rem;padding:.85rem 1.2rem;animation:.7s 1.1s both detail-arrive;display:flex}.demo-report__signal{color:var(--teal);font-size:1.8rem}.demo-report__insight>div{flex:1}.demo-report__insight strong{font-size:1rem}.demo-report__insight p{color:var(--ink-soft);margin-top:.25rem;font-size:.82rem}.demo-report__score{color:var(--teal);font-size:1.6rem;line-height:1}.demo-report__score small{color:var(--graphite);margin-top:.3rem;font-size:.66rem;display:block}.demo-report__link{color:var(--teal);text-underline-offset:4px;align-self:end;font-size:.85rem}@keyframes panel-arrive{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes detail-arrive{0%{opacity:0;transform:translateY(9px)scale(.98)}to{opacity:1;transform:none}}@keyframes marker-arrive{0%{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}@keyframes animation-arrive{0%{opacity:0;transform:scale(1.06)}to{opacity:1;transform:scale(1)}}@keyframes chart-trace{0%{stroke-dashoffset:1px}to{stroke-dashoffset:0}}@media (width<=1100px){.demo-theater{padding-inline:1rem}.professor-demo .professor-workspace__main{padding:1rem}.professor-demo .review-tabs{gap:.5rem}.professor-demo .review-tabs button{font-size:.85rem}.demo-scene-caption__detail{display:none}}@media (width<=850px){.professor-demo .professor-workspace__columns{grid-template-columns:1fr;gap:1rem}.professor-demo .review-video__stage{aspect-ratio:16/9}.professor-demo .review-slide h3{font-size:1.3rem}.professor-demo .review-panel{min-height:305px}.demo-report{justify-content:center}.demo-report__attention{flex:0 auto}.demo-report__attention svg{max-height:220px}.demo-report__metrics{grid-template-columns:1fr}}@media (width<=590px){.demo-theater{border-radius:14px;padding:0 .5rem .9rem}.demo-chrome{gap:.5rem;height:38px;padding-inline:.25rem;font-size:.58rem}.demo-chrome__live{display:none}.professor-demo .professor-workspace{transform:none}.professor-demo .professor-workspace__main{padding:.7rem}.professor-demo .professor-workspace__heading h2{font-size:1.5rem}.professor-demo .review-slide{padding:.65rem}.professor-demo .review-slide h3{font-size:1rem}.professor-demo .review-slide__equation{font-size:1.5rem}.demo-scene-caption{gap:.65rem;min-height:68px}.demo-scene-caption p{font-size:1rem}.demo-player__transport{grid-template-columns:32px minmax(0,1fr);gap:.3rem .6rem}.demo-play{width:32px;height:32px}.demo-player__transport>.demo-play{margin-bottom:-2px}.demo-player__time{grid-column:2;justify-self:end;margin-bottom:0}.demo-chapters button{flex-direction:column;gap:.2rem;min-height:48px;font-size:clamp(.65rem,2.6vw,.83rem)}.demo-report__insight{gap:.6rem;padding:.8rem}.demo-report__signal{display:none}.demo-report__attention{padding:1rem}.demo-report__attention text{font-size:20px}.demo-report__link{align-self:start}}@media (width>=851px) and (height<=850px){.professor-demo .workspace-heading{margin-bottom:.5rem}.demo-theater{padding-bottom:.6rem}.demo-chrome{height:28px}.professor-demo .professor-workspace__main{padding:.7rem 1rem}.professor-demo .professor-workspace__toolbar{margin:.45rem 0}.professor-demo .review-video__stage{aspect-ratio:2}.professor-demo .review-newton{align-items:center;gap:.8rem;margin-top:.5rem;padding:.5rem .7rem;display:flex}.professor-demo .review-newton .mock-label{flex:none}.professor-demo .review-newton p{min-height:0;margin:0}.professor-demo .review-panel{min-height:290px;padding-block:.6rem}.professor-demo .review-cut{margin-top:.7rem;padding-top:.6rem}.demo-scene-caption{min-height:38px;padding-top:.5rem}.demo-player,.professor-demo .demo-note{margin-top:.5rem}}@media (prefers-reduced-motion:reduce){.professor-demo *,.professor-demo :before{transition:none!important;animation:none!important}.professor-demo .professor-workspace{transform:none}}
