@import"https://fonts.googleapis.com/css2?family=Russo+One&display=swap";:root{color-scheme:light;font-family:Russo One,Avenir Next,Segoe UI,sans-serif;line-height:1.5;font-weight:400;color:#102542;background:radial-gradient(circle at top,rgba(240,199,135,.34),transparent 28%),linear-gradient(180deg,#f7f3e9,#f2ebe0 48%,#e8eef2);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--surface: rgba(255, 255, 255, .78);--surface-strong: rgba(255, 255, 255, .92);--ink: #102542;--muted: #4f647d;--accent: #de6b48;--accent-soft: #f2cc8f;--outline: rgba(16, 37, 66, .12);--shadow: 0 24px 80px rgba(36, 40, 74, .16);--radius-xl: 32px;--radius-lg: 24px;--radius-md: 18px}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{min-height:100vh;color:var(--ink)}button,input,textarea,select{font:inherit}button{cursor:pointer}.app-shell{display:grid;gap:1.25rem;min-height:100vh;padding:max(1rem,env(safe-area-inset-top)) max(1rem,env(safe-area-inset-right)) max(1rem,env(safe-area-inset-bottom)) max(1rem,env(safe-area-inset-left))}.app-shell--player-only{display:block;min-height:100vh;padding:0}.app-panel{background:var(--surface);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border:1px solid var(--outline);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:1.25rem}.app-panel--player-only{display:grid;padding:0;border:0;border-radius:0;box-shadow:none;background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;min-height:100vh}.app-panel--fallback{margin:1rem;border-radius:0}.app-panel--player{display:grid;gap:1.25rem}.app-header{display:grid;gap:1rem}.app-header h1{margin:.25rem 0 .5rem;font-size:clamp(1.8rem,3vw,3rem);line-height:1.04}.app-header p{margin:0;max-width:70ch;color:var(--muted)}.app-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;margin:0}.app-stats div{border-radius:var(--radius-md);padding:.9rem 1rem;background:var(--surface-strong)}.app-stats dt{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.app-stats dd{margin:.35rem 0 0;font-size:1.5rem;font-weight:700}.eyebrow{margin:0;font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;color:var(--accent)}.lecture-player{display:grid;place-items:center;container-type:size;gap:0;--stage-width-ratio: 16;--stage-height-ratio: 9;--player-font-size: clamp(10px, 1.45cqi, 18px);--square-header-size: 300%;--header-gap: 1rem;--stage-gap: 0rem;--video-size: 30.5%;width:100%;height:100%;min-width:0;min-height:0;padding:0;border:0;border-radius:0;background:#6c6c6c;box-shadow:none;overflow:hidden}.lecture-player__stage{position:relative;container-type:inline-size;width:min(calc(100cqw - 16px),calc((100cqh - 16px) * var(--stage-width-ratio) / var(--stage-height-ratio)));aspect-ratio:var(--stage-width-ratio) / var(--stage-height-ratio);max-width:100%;max-height:100%;min-height:0}.lecture-player__stage-frame{position:relative;width:100%;height:100%;min-height:0;overflow:hidden;background:#000;font-size:var(--player-font-size)}.lecture-player__slide-shell{position:absolute;top:var(--stage-gap);right:var(--stage-gap);bottom:var(--stage-gap);left:calc(var(--video-size) + (var(--stage-gap) * 2));min-height:0;overflow:hidden;margin:1%}.lecture-player__fullscreen-layer{position:absolute;top:0;right:0;bottom:0;left:0;z-index:5;overflow:hidden}.lecture-player__square-header{position:absolute;z-index:4;left:var(--stage-gap);top:var(--header-gap);width:var(--video-size);padding:0 .3rem;color:#ffbd16;font-family:Russo One,Avenir Next,Segoe UI,sans-serif;font-size:var(--square-header-size);line-height:1.1;letter-spacing:.04em;text-align:center;text-transform:uppercase;text-wrap:balance;text-shadow:0 3px 14px rgba(0,0,0,.52)}.lecture-player__gesture-layer{position:relative;height:100%;overflow:hidden;touch-action:none}.lecture-player__empty{display:grid;place-items:center;width:100%;height:100%;min-height:0;padding:clamp(1.5rem,4vw,3rem);border-radius:0;border:0;background:#ffbd16;text-align:center;color:#111;overflow:hidden}.lecture-player__empty p{margin:0;max-width:24ch;font-size:96%;line-height:1.08}.lecture-player__empty .eyebrow{color:#111111ad}.video-stage{position:absolute;z-index:2;display:grid;gap:.75rem;left:var(--stage-gap);top:73%;transform:translateY(-50%);width:var(--video-size)}.video-stage__window{position:relative;aspect-ratio:1 / 1;overflow:hidden;border-radius:0;background:#000;border:1px solid rgba(255,255,255,.26);box-shadow:0 18px 42px #10254261}.video-stage__video,.video-stage__placeholder{width:100%;height:100%;object-fit:cover}.video-stage__placeholder{display:grid;place-items:center;padding:1rem;text-align:center;color:#fdfdfd}.video-stage__meta{position:absolute;inset:auto .8rem .8rem .8rem;display:flex;justify-content:space-between;color:#102542;z-index:3}.video-stage__meta span,.video-stage__next{padding:.38rem .65rem;border-radius:0;background:#ffffffa6;border:1px solid rgba(16,37,66,.08);font-size:72%;letter-spacing:.03em}.video-stage__next{justify-self:center}.slide-host{position:relative;z-index:1;display:grid;align-items:center;container-type:inline-size;min-height:100%;height:100%;font-size:clamp(8px,2cqi,20px);overflow:hidden;transition:transform .18s ease,opacity .18s ease;--slide-padding: clamp(.6em, 3.6cqi, 1.4em);--slide-gap: clamp(.35em, 1.8cqi, .9em);--slide-kicker-size: .78em;--slide-meta-size: .86em;--slide-body-size: 1em;--slide-title-size: 1.7em;--slide-title-compact-size: 1.45em;--slide-quote-size: 2.4em;--slide-equation-size: 2.8em}.slide-host--square{min-height:0;padding:.25rem;font-size:clamp(8px,2.55cqi,22px);--slide-body-size: .98em;--slide-title-size: 1.58em;--slide-title-compact-size: 1.34em;--slide-quote-size: 2.1em;--slide-equation-size: 2.45em}.slide-host--fullscreen{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;padding:.5rem;font-size:clamp(9px,1.75cqi,22px)}.slide-host--inspect{transform:scale(.985)}.slide-host__viewport{position:relative;width:100%;height:100%;overflow:hidden}.slide-host__track{width:100%;height:100%;will-change:transform}.slide-host__track--settling{transition:transform .22s cubic-bezier(.2,.9,.2,1)}.slide-host__track--horizontal{display:grid;grid-auto-flow:column;grid-auto-columns:100%}.slide-host__track--vertical{display:grid;grid-auto-flow:row;grid-auto-rows:100%}.slide-host__item{width:100%;height:100%;min-height:0}.glitch-slide-renderer{position:relative;width:100%;height:100%;min-height:0}.glitch-slide-thumbnail{display:grid;container-type:inline-size;gap:.45rem;width:100%;min-width:0;font-size:clamp(7px,2.1cqi,16px);color:#111}.glitch-slide-thumbnail__header{margin:0;color:#ffbd16;font-size:.92em;line-height:.9;letter-spacing:.045em;text-transform:uppercase;text-wrap:balance}.glitch-slide-thumbnail__surface{position:relative;width:100%;overflow:hidden;background:#000}.glitch-slide-thumbnail--square .glitch-slide-thumbnail__surface{aspect-ratio:1 / 1}.glitch-slide-thumbnail--fullscreen .glitch-slide-thumbnail__surface{aspect-ratio:16 / 9}.glitch-slide-thumbnail__surface>.glitch-slide-renderer{position:absolute;top:0;right:0;bottom:0;left:0}.slide-card,.split-slide,.fallback-slide,.basic-slide,.fullscreen-split{width:100%;height:100%;min-height:100%;border-radius:0;background:#ffbd16;color:#111;border:0;box-shadow:none;overflow:hidden}.square-slide{display:grid;place-items:center;width:100%;height:100%;min-height:100%;padding:var(--slide-padding);overflow:hidden}.square-slide--yellow{background:#ffbd16}.square-slide--paused{filter:saturate(.92)}.square-slide__image-frame{width:min(100%,100cqh);max-width:100%;max-height:100%;aspect-ratio:1 / 1;overflow:hidden;background:#ffffff29}.square-slide__image{width:100%;height:100%;display:block;object-fit:cover;aspect-ratio:1 / 1}.square-video{display:grid;place-items:center;width:100%;height:100%;min-height:100%;padding:var(--slide-padding);background:#ffbd16}.square-video--paused{filter:saturate(.92)}.square-video__frame{width:min(100%,100cqh);max-width:100%;max-height:100%;aspect-ratio:1 / 1;overflow:hidden;background:#ffffff29}.square-video__media{display:block;width:100%;height:100%;object-fit:cover;object-position:center;background:#000}.equation-focus,.quote-image,.chart-single,.process-flow,.definition-card,.glitch-component-frame{width:100%;height:100%;min-height:100%;background:#ffbd16;color:#111;overflow:hidden}.equation-focus__content,.chart-single__content,.process-flow__content,.definition-card__content,.glitch-component-frame__content{display:grid;height:100%;padding:var(--slide-padding)}.equation-focus__eyebrow,.quote-image__eyebrow,.chart-single__eyebrow,.process-flow__eyebrow,.definition-card__eyebrow,.glitch-component-frame__eyebrow{margin:0;font-size:var(--slide-kicker-size);letter-spacing:.12em;text-transform:uppercase;color:#111111a3}.equation-focus__title,.chart-single__title,.process-flow__title,.definition-card__term,.glitch-component-frame__title{margin:0;font-size:var(--slide-title-size);line-height:1.1;text-transform:uppercase}.chart-single__title{font-size:calc(var(--slide-title-size) * 1.05)}.equation-focus__content{align-content:center;gap:var(--slide-gap)}.equation-focus--square .equation-focus__content{align-content:stretch;justify-items:center;text-align:center;padding:var(--slide-padding);gap:var(--slide-gap)}.equation-focus--square .equation-focus__eyebrow{font-size:calc(var(--slide-kicker-size) * .92)}.equation-focus--square .equation-focus__title{max-width:10ch;font-size:var(--slide-title-compact-size)}.equation-focus__equation-frame{padding:calc(var(--slide-padding) * .9);border:1px solid rgba(17,17,17,.24);background:#ffffff2e}.equation-focus--square .equation-focus__equation-frame{width:100%;padding:calc(var(--slide-padding) * .7)}.equation-focus__equation{display:block;overflow-wrap:anywhere;font-family:Times New Roman,serif;font-size:var(--slide-equation-size);font-style:italic;line-height:1.02;text-align:center}.equation-focus__equation--mathjax{min-height:clamp(5rem,12vw,8.5rem);display:grid;place-items:center;padding:.4rem;font-style:normal;overflow:hidden}.equation-focus--square .equation-focus__equation{font-size:calc(var(--slide-equation-size) * .82)}.equation-focus--square .equation-focus__equation--mathjax{min-height:clamp(3.8rem,9vw,5.8rem)}.equation-focus__equation--mathjax mjx-container{margin:0;max-width:100%;overflow-x:auto;overflow-y:hidden}.equation-focus__equation--loading,.equation-focus__equation--error{font-size:calc(var(--slide-body-size) * 1.08);line-height:1.08;color:#111111db}.equation-focus__equation--loading:before{content:"Loading equation…"}.equation-focus__annotation,.chart-single__body,.definition-card__definition,.definition-card__example{margin:0;max-width:30ch;font-size:var(--slide-body-size);line-height:1.08}.equation-focus--square .equation-focus__annotation{max-width:22ch;font-size:calc(var(--slide-body-size) * .94)}.chart-single__body{font-size:calc(var(--slide-body-size) * 1.08)}.quote-image{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.quote-image--image-right .quote-image__panel--image{order:2}.quote-image--image-right .quote-image__panel--quote{order:1}.quote-image__panel{min-width:0;min-height:0}.quote-image__panel--image{background:#ffffff24}.quote-image__image{width:100%;height:100%;display:block;object-fit:cover}.quote-image__panel--quote{display:grid;place-items:center;padding:var(--slide-padding)}.quote-image__content{display:grid;gap:var(--slide-gap);width:100%}.quote-image__quote{margin:0;max-width:14ch;font-size:var(--slide-quote-size);line-height:.94}.quote-image__attribution{margin:0;font-size:calc(var(--slide-body-size) * 1.3);letter-spacing:.06em;text-transform:uppercase}.chart-single__content{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:var(--slide-gap);align-items:center}.chart-single__copy{display:grid;gap:1.1rem;align-content:center}.chart-single__plot{display:grid;gap:1rem;align-content:center}.chart-single__row{display:grid;grid-template-columns:minmax(0,5.8rem) minmax(0,1fr) auto;gap:.75rem;align-items:center}.chart-single__label,.chart-single__value{font-size:var(--slide-body-size);letter-spacing:.06em;text-transform:uppercase}.chart-single__bar-track{height:1.2rem;background:#11111124;overflow:hidden}.chart-single__bar-fill{height:100%}.process-flow__content{align-content:center;gap:var(--slide-gap)}.process-flow__steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(10rem,1fr));gap:.8rem}.process-flow__step{display:grid;gap:.7rem;align-content:start;min-height:8.5rem;padding:1rem;background:#ffffff2e;border:1px solid rgba(17,17,17,.18)}.process-flow__index{display:inline-grid;place-items:center;width:2rem;height:2rem;background:#111;color:#ffbd16;font-size:var(--slide-meta-size)}.process-flow__label{margin:0;font-size:var(--slide-body-size);line-height:1.04}.definition-card__content{align-content:center;gap:clamp(.8rem,1.5vw,1.2rem)}.definition-card__term{max-width:10ch}.definition-card__definition{max-width:22ch}.definition-card__example{max-width:24ch;padding-top:.8rem;border-top:1px solid rgba(17,17,17,.24);color:#111c}.glitch-component-frame{display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:clamp(.75rem,1.6vw,1.1rem);padding:clamp(.85rem,2vw,1.4rem)}.glitch-component-frame--fullscreen{position:relative;display:block;padding:0}.glitch-component-frame__chrome{display:flex;justify-content:space-between;align-items:end;gap:.75rem}.glitch-component-frame--fullscreen .glitch-component-frame__chrome{position:absolute;top:clamp(.6rem,1.5vw,1rem);left:clamp(.6rem,1.5vw,1rem);right:clamp(.6rem,1.5vw,1rem);z-index:2;pointer-events:none}.glitch-component-frame--fullscreen .glitch-component-frame__eyebrow,.glitch-component-frame--fullscreen .glitch-component-frame__id{padding:.28rem .5rem;background:#0000008f;color:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.glitch-component-frame__id{margin:0;font-size:var(--slide-kicker-size);letter-spacing:.08em;text-transform:uppercase;color:#111111bd}.glitch-component-frame__viewport{position:relative;min-height:0;overflow:hidden;border:1px solid rgba(17,17,17,.24);background:#ffffff29}.glitch-component-frame--fullscreen .glitch-component-frame__viewport{position:absolute;top:0;right:0;bottom:0;left:0;border:0;background:#000}.glitch-component-frame__iframe{display:block;width:100%;height:100%;min-height:100%;border:0;background:#000}.glitch-component-frame__caption{margin:0;max-width:28ch;font-size:var(--slide-body-size);line-height:1.08;color:#111111d6}.glitch-component-frame--fullscreen .glitch-component-frame__caption{position:absolute;left:clamp(.6rem,1.5vw,1rem);right:auto;bottom:clamp(.6rem,1.5vw,1rem);z-index:2;max-width:32ch;padding:.36rem .56rem;background:#0000008f;color:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:none}.equation-focus--paused,.quote-image--paused,.chart-single--paused,.process-flow--paused,.definition-card--paused,.glitch-component-frame--paused{filter:saturate(.92)}.fullscreen-video{position:relative;width:100%;height:100%;min-height:100%;overflow:hidden;background:#000}.fullscreen-video__media{display:block;width:100%;height:100%;object-fit:cover;background:#000}.fullscreen-video__chrome{position:absolute;top:clamp(.6rem,1.5vw,1rem);left:clamp(.6rem,1.5vw,1rem);right:clamp(.6rem,1.5vw,1rem);z-index:2;pointer-events:none}.fullscreen-video__header{display:inline-block;margin:0;padding:.28rem .5rem;background:#0000008f;color:#ffffffeb;font-size:var(--slide-kicker-size);letter-spacing:.12em;text-transform:uppercase;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.fullscreen-video__caption{position:absolute;left:clamp(.6rem,1.5vw,1rem);right:auto;bottom:clamp(.6rem,1.5vw,1rem);z-index:2;margin:0;max-width:32ch;padding:.36rem .56rem;background:#0000008f;color:#ffffffeb;font-size:var(--slide-body-size);line-height:1.08;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:none}.fullscreen-video--paused{filter:saturate(.92)}.fullscreen-video-title{position:relative;width:100%;height:100%;min-height:100%;overflow:hidden;background:#000}.fullscreen-video-title__media{display:block;width:100%;height:100%;object-fit:cover;background:#000}.fullscreen-video-title__overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:var(--slide-padding);background:linear-gradient(to bottom,#0000002e,#00000014 35%,#0000004d);pointer-events:none}.fullscreen-video-title__title{margin:0;max-width:10ch;color:#ffbd16;font-size:5em;line-height:.9;letter-spacing:.02em;text-align:center;text-transform:uppercase;text-wrap:balance;text-shadow:0 .08em .24em rgba(0,0,0,.65),0 0 .5em rgba(0,0,0,.2)}.fullscreen-video-title--paused{filter:saturate(.92)}.fullscreen-video-center-caption{position:relative;width:100%;height:100%;min-height:100%;overflow:hidden;background:#000}.fullscreen-video-center-caption__media{display:block;width:100%;height:100%;object-fit:cover;background:#000}.fullscreen-video-center-caption__overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:var(--slide-padding);pointer-events:none}.fullscreen-video-center-caption__caption{margin:0;max-width:12ch;color:#ffbd16;font-size:5em;line-height:1.1;letter-spacing:.01em;text-align:center;text-wrap:balance;text-shadow:0 .08em .26em rgba(0,0,0,.7),0 0 .5em rgba(0,0,0,.24)}.fullscreen-video-center-caption--paused{filter:saturate(.92)}.fullscreen-split{display:grid;place-items:center;padding:var(--slide-padding)}.fullscreen-split__panel{overflow:hidden;aspect-ratio:1 / 1}.fullscreen-split__panel--image{background:#ffffff1f}.fullscreen-split__panel--text{display:grid;place-items:center;padding:var(--slide-padding);background:#f5b008}.fullscreen-split__image{width:100%;height:100%;display:block;object-fit:cover}.fullscreen-split__text{display:grid;align-content:center;gap:var(--slide-gap);width:100%;height:100%}.fullscreen-split__eyebrow{margin:0;font-size:calc(var(--slide-kicker-size) * 1.18);letter-spacing:.12em;text-transform:uppercase;color:#111111ad}.fullscreen-split__title{margin:0;max-width:11ch;font-size:var(--slide-title-size);line-height:1.1;letter-spacing:.01em;text-transform:uppercase}.fullscreen-split__body{margin:0;max-width:24ch;font-size:calc(var(--slide-body-size) * 1.15);line-height:1.08}.slide-card,.fallback-slide,.basic-slide{display:grid;align-content:center;gap:var(--slide-gap);padding:var(--slide-padding)}.slide-card h2,.fallback-slide h3,.basic-slide__title{margin:0;font-size:var(--slide-title-size);line-height:1.1;text-transform:uppercase}.slide-card p,.fallback-slide p,.basic-slide__body,.basic-slide__eyebrow,.basic-slide__kicker{margin:0;max-width:28ch;font-size:var(--slide-body-size)}.slide-card--paused,.split-slide--paused,.basic-slide--paused{filter:saturate(.92)}.slide-card--kinetic{position:relative;overflow:hidden;background:radial-gradient(circle at 18% 20%,rgba(255,243,196,.86),transparent 24%),radial-gradient(circle at 80% 72%,rgba(255,255,255,.18),transparent 26%),linear-gradient(135deg,#ffbd16,#f5b008);color:#111;transform-style:preserve-3d}.slide-card__orbs{position:absolute;inset:auto -3rem -2rem auto;display:grid;gap:1rem}.slide-card__orbs span{width:5rem;height:5rem;border-radius:50%;background:#1111111f;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.slide-card .eyebrow,.fallback-slide .eyebrow{color:#111111ad}.split-slide{display:grid;grid-template-columns:1fr auto 1fr;overflow:hidden}.split-slide__panel{display:grid;align-content:center;justify-items:center;gap:var(--slide-gap);padding:var(--slide-padding)}.split-slide__panel span{font-size:var(--slide-kicker-size);letter-spacing:.12em;text-transform:uppercase;color:#111111ad}.split-slide__panel strong{font-size:var(--slide-title-size);text-align:center;line-height:1.02;text-transform:uppercase}.split-slide__panel--left{background:linear-gradient(180deg,#ffc72c,#ffbd16)}.split-slide__panel--right{background:linear-gradient(180deg,#f7b61f,#eaa300)}.split-slide__divider{width:1px;background:#11111152}.fallback-slide{background:linear-gradient(180deg,#ffc72c,#ffbd16)}.fallback-slide code{overflow-wrap:anywhere;color:#111111ad}.basic-slide{padding:var(--slide-padding)}.basic-slide__content{display:grid;align-content:center;gap:var(--slide-gap);height:100%}.basic-slide__eyebrow,.basic-slide__kicker{font-size:var(--slide-kicker-size);letter-spacing:.12em;text-transform:uppercase;color:#111111ad}.basic-slide__title{max-width:10ch}.basic-slide__body{max-width:26ch;line-height:1.12}.basic-slide__accent-bar{width:min(18rem,54%);height:.7rem;background:#111}.carousel-hud{position:absolute;inset:auto 1rem 1rem 1rem;z-index:6;display:grid;gap:.35rem;justify-items:center;max-width:min(24rem,calc(100% - 2rem));padding:.55rem .75rem;border-radius:0;background:#0000009e;color:#fff;box-shadow:0 12px 24px #0000003d;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.carousel-hud--inspect{background:#000c}.carousel-hud__header,.carousel-hud__footer{display:flex;justify-content:space-between;gap:.75rem;width:100%;font-size:82%}.carousel-hud__cue,.carousel-hud__detail{display:grid;gap:.25rem;width:100%}.carousel-hud__author{margin:0;width:100%;font-size:78%;line-height:1.1;text-align:center;color:#ffffffdb}.carousel-hud__cue{justify-items:center;font-size:76%;letter-spacing:.08em;text-transform:uppercase}.carousel-hud__swipe{color:#ffbd16;font-size:84%}.carousel-hud__swipe--vertical{line-height:1}.carousel-hud__track{display:flex;gap:.5rem;justify-content:center}.carousel-hud__dot{display:inline-grid;place-items:center;width:.55rem;height:.55rem;min-width:0;min-height:0;padding:0;border-radius:0;background:#ffffff24;font-size:0}.carousel-hud__dot--active{background:#ffbd16;color:transparent}.resume-control{display:grid;place-items:center;width:100%;height:100%}.resume-control__button{display:grid;place-items:center;width:clamp(3.6rem,11vw,5.4rem);aspect-ratio:1 / 1;padding:0;border:1px solid rgba(255,255,255,.34);border-radius:999px;background:#0000009e;color:#fff;box-shadow:0 16px 28px #00000047;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.resume-control__button:hover{background:#000000c2}.resume-control__button:focus-visible{outline:3px solid rgb(255,189,22);outline-offset:4px}.resume-control__icon{display:block}.resume-control__icon--play{width:0;height:0;margin-left:.18rem;border-top:.85rem solid transparent;border-bottom:.85rem solid transparent;border-left:1.4rem solid #fff}.resume-control__icon--pause{width:1.35rem;height:1.7rem;background:linear-gradient(90deg,#fff 0 36%,transparent 36% 64%,#fff 64% 100%)}kbd{padding:.1rem .4rem;border-radius:0;background:#ffffff2e;border:1px solid rgba(255,255,255,.28)}.lecture-player__alert{padding:.9rem 1rem;border-radius:0;background:#fff0f0eb;border:1px solid rgba(194,45,58,.16)}.lecture-player__alert--overlay{position:absolute;left:1rem;right:1rem;bottom:1rem;z-index:8}.lecture-player__overlay-control{position:absolute;z-index:7;left:var(--stage-gap);top:calc(67% - (var(--video-size) / 2));width:var(--video-size);height:var(--video-size);display:grid;place-items:center;pointer-events:none}.lecture-player__overlay-control .resume-control__button{pointer-events:auto}.lecture-player__scrubber{position:absolute;left:.65rem;right:.65rem;bottom:.35rem;z-index:9;display:grid;gap:.28rem;padding:.28rem .5rem .34rem;background:#000000b8;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.lecture-player__scrubber-input{width:100%;margin:0;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;touch-action:none;position:relative;z-index:1}.lecture-player__scrubber-input:focus-visible{outline:none}.lecture-player__scrubber-input::-webkit-slider-runnable-track{height:.28rem;background:linear-gradient(90deg,rgb(255,189,22) 0 var(--scrub-progress),rgba(255,255,255,.24) var(--scrub-progress) 100%)}.lecture-player__scrubber-input::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:1.05rem;height:1.05rem;margin-top:-.39rem;border:1px solid #111;border-radius:999px;background:#ffbd16;box-shadow:0 0 0 2px #00000047}.lecture-player__scrubber-input::-moz-range-track{height:.28rem;background:#ffffff3d}.lecture-player__scrubber-input::-moz-range-progress{height:.28rem;background:#ffbd16}.lecture-player__scrubber-input::-moz-range-thumb{width:1.05rem;height:1.05rem;border:1px solid #111;border-radius:999px;background:#ffbd16;box-shadow:0 0 0 2px #00000047}.lecture-player__scrubber-markers{position:relative;height:1.1rem;z-index:2}.lecture-player__scrubber-marker{position:absolute;left:var(--marker-progress);top:0;transform:translate(-50%);display:grid;gap:.12rem;justify-items:center;min-width:2rem;padding:0;border:0;background:transparent;color:#ffffffd1}.lecture-player__scrubber-marker:before{content:"";width:.12rem;height:.4rem;background:#ffbd16c7}.lecture-player__scrubber-marker-label{display:inline-grid;place-items:center;min-width:1.6rem;padding:.08rem .28rem;background:#ffffff1f;font-size:58%;letter-spacing:.08em;text-transform:uppercase}.lecture-player__scrubber-marker:hover .lecture-player__scrubber-marker-label,.lecture-player__scrubber-marker:focus-visible .lecture-player__scrubber-marker-label{background:#ffbd1661;color:#fff}.lecture-player__scrubber-marker--active .lecture-player__scrubber-marker-label{background:#ffbd16;color:#111}.lecture-player__scrubber-marker:focus-visible{outline:2px solid rgba(255,189,22,.82);outline-offset:2px}.lecture-player__scrubber-marker--active:before{background:#ffbd16}.lecture-player__empty--muted{opacity:0;pointer-events:none}.lecture-player__vote-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:6;display:grid;place-items:center;padding:clamp(1rem,2.6vw,2rem);background:#0000008f;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.lecture-player__vote-overlay--square,.lecture-player__vote-overlay--fullscreen{top:0;right:0;bottom:0;left:0}.lecture-player__vote-panel{display:grid;gap:clamp(.8rem,1.8vw,1.2rem);justify-items:center;width:min(100%,28rem);padding:clamp(1rem,2.4vw,1.6rem);background:#000000b8;border:1px solid rgba(255,255,255,.14);box-shadow:0 16px 36px #00000057}.lecture-player__vote-label{margin:0;color:#ffbd16;font-size:102%;letter-spacing:.08em;text-transform:uppercase;text-align:center}.lecture-player__vote-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:.8rem;width:100%}.lecture-player__vote-button{min-width:clamp(8.25rem,20vw,10.5rem);padding:.68rem .95rem;border:1px solid rgba(255,255,255,.28);background:#ffffff14;color:#fff;font-size:86%;text-transform:uppercase;letter-spacing:.05em;transition:background .14s ease,border-color .14s ease,color .14s ease}.lecture-player__vote-button:hover:not(:disabled){background:#ffbd162e;border-color:#ffbd1694}.lecture-player__vote-button:focus-visible{outline:2px solid rgb(255,189,22);outline-offset:2px}.lecture-player__vote-button:disabled{opacity:.6;cursor:progress}.lecture-player__vote-button--active{background:#ffbd16;border-color:#ffbd16;color:#111}.lecture-player--mobile-landscape{--stage-gap: .75rem;--square-header-size: 300%}.lecture-player--mobile-landscape .video-stage{top:auto;bottom:var(--stage-gap);left:var(--stage-gap);transform:none;width:var(--video-size)}.lecture-player--mobile-landscape .lecture-player__slide-shell{top:var(--stage-gap);right:var(--stage-gap);bottom:var(--stage-gap);left:auto;width:calc((100% - (var(--stage-gap) * 2)) * .67);height:auto;transform:none}.lecture-player--mobile-landscape .lecture-player__overlay-control{left:var(--stage-gap);top:auto;bottom:var(--stage-gap);width:var(--video-size);height:var(--video-size)}.lecture-player--mobile-landscape .lecture-player__scrubber{left:.55rem;right:.55rem;bottom:.3rem}.lecture-player--mobile-landscape .lecture-player__square-header{top:var(--stage-gap);left:var(--stage-gap);width:var(--video-size);padding:0 .25rem;line-height:.9;letter-spacing:.05em}.lecture-player--mobile-landscape .slide-host,.lecture-player--mobile-landscape .slide-host--square,.lecture-player--mobile-landscape .lecture-player__gesture-layer{width:100%;height:100%;min-height:0}.lecture-player--mobile-landscape .slide-host--square{padding:0}.lecture-player--desktop .fullscreen-split,.lecture-player--mobile-landscape .fullscreen-split{grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);align-content:center;justify-content:center;gap:clamp(1rem,2.2vw,1.6rem)}.lecture-player--desktop .fullscreen-split--image-right .fullscreen-split__panel--image,.lecture-player--mobile-landscape .fullscreen-split--image-right .fullscreen-split__panel--image{order:2}.lecture-player--desktop .fullscreen-split--image-right .fullscreen-split__panel--text,.lecture-player--mobile-landscape .fullscreen-split--image-right .fullscreen-split__panel--text{order:1}.lecture-player--desktop .quote-image,.lecture-player--mobile-landscape .quote-image{grid-template-columns:repeat(2,minmax(0,1fr))}.lecture-player--mobile-portrait{--stage-width-ratio: 1;--stage-height-ratio: 2;--stage-gap: 0;--player-font-size: clamp(9px, 2.5cqi, 16px);--square-header-size: 300%;--video-size: 100%}.lecture-player--mobile-portrait .video-stage{top:auto;bottom:0;left:50%;transform:none;width:var(--video-size);height:50%;gap:0;margin-left:-50%}.lecture-player--mobile-portrait .video-stage__window{width:100%;height:100%}.lecture-player--mobile-portrait .video-stage__next{display:none}.lecture-player--mobile-portrait .lecture-player__slide-shell{top:0;left:0;right:0;bottom:50%}.lecture-player--mobile-portrait .lecture-player__gesture-layer,.lecture-player--mobile-portrait .slide-host,.lecture-player--mobile-portrait .slide-host--square{width:100%;height:100%;min-height:0;padding:0}.lecture-player--mobile-portrait .slide-host--fullscreen{top:0;right:0;bottom:0;left:0;padding:0}.lecture-player--mobile-portrait .lecture-player__fullscreen-layer{top:0;right:0;bottom:0;left:0}.lecture-player--mobile-portrait .lecture-player__square-header{top:auto;left:.9rem;right:.9rem;width:auto;top:calc(52% - .1rem);line-height:.88;letter-spacing:.045em}.lecture-player--mobile-portrait .lecture-player__overlay-control{left:0;right:0;top:auto;bottom:0;width:100%;height:50%}.lecture-player--mobile-portrait .lecture-player__scrubber{left:.35rem;right:.35rem;bottom:.18rem;padding-bottom:calc(.28rem + env(safe-area-inset-bottom))}.lecture-player--mobile-portrait .lecture-player__scrubber-marker-label{min-width:1.4rem;font-size:54%}.lecture-player--mobile-portrait .slide-card,.lecture-player--mobile-portrait .split-slide,.lecture-player--mobile-portrait .fallback-slide,.lecture-player--mobile-portrait .fullscreen-split,.lecture-player--mobile-portrait .equation-focus,.lecture-player--mobile-portrait .quote-image,.lecture-player--mobile-portrait .chart-single,.lecture-player--mobile-portrait .process-flow,.lecture-player--mobile-portrait .definition-card,.lecture-player--mobile-portrait .glitch-component-frame,.lecture-player--mobile-portrait .lecture-player__empty{border-radius:0;box-shadow:none}.lecture-player--mobile-portrait .quote-image,.lecture-player--mobile-portrait .chart-single__content{grid-template-columns:1fr}.lecture-player--mobile-portrait .quote-image__panel--quote,.lecture-player--mobile-portrait .equation-focus__content,.lecture-player--mobile-portrait .chart-single__content,.lecture-player--mobile-portrait .process-flow__content,.lecture-player--mobile-portrait .definition-card__content,.lecture-player--mobile-portrait .glitch-component-frame__content{padding:.9rem}.lecture-player--mobile-portrait .quote-image__quote{max-width:12ch;font-size:var(--slide-quote-size)}.lecture-player--mobile-portrait .equation-focus__equation--mathjax{min-height:4.6rem;padding:.2rem}.lecture-player--mobile-portrait .equation-focus__title,.lecture-player--mobile-portrait .chart-single__title,.lecture-player--mobile-portrait .process-flow__title,.lecture-player--mobile-portrait .definition-card__term,.lecture-player--mobile-portrait .glitch-component-frame__title{font-size:var(--slide-title-size)}.lecture-player--mobile-portrait .equation-focus__annotation,.lecture-player--mobile-portrait .chart-single__body,.lecture-player--mobile-portrait .definition-card__definition,.lecture-player--mobile-portrait .definition-card__example,.lecture-player--mobile-portrait .process-flow__label,.lecture-player--mobile-portrait .glitch-component-frame__caption{font-size:var(--slide-body-size)}.lecture-player--mobile-portrait .chart-single__row{grid-template-columns:minmax(0,4.8rem) minmax(0,1fr) auto;gap:.5rem}.lecture-player--mobile-portrait .process-flow__steps{grid-template-columns:repeat(2,minmax(0,1fr))}.lecture-player--mobile-portrait .slide-card,.lecture-player--mobile-portrait .fallback-slide{align-content:center}.lecture-player--mobile-portrait .split-slide__panel{min-height:0}.lecture-player--mobile-portrait .fullscreen-split{align-content:center;gap:.9rem;grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) minmax(0,1.5fr)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}