/* HTML slides for lectures. Loaded after site.css; reuses its visualization styles.
   Canvas is 1280×720 and scaled to the window, so every size below is canvas px.
   On a 13.33-inch-wide slide, 1pt = 1.333 canvas px: 20pt (the deck floor, D22) = 26.7px. */

/* projectors: always the light palette */
:root { color-scheme: light; }
@media (prefers-color-scheme: dark) {
  :root {
    --blue: #003d7c; --blue-2: #1f5aa6; --orange: #ef7c00; --orange-2: #b85f00; --deep: #17375e;
    --bg: #fbfcfd; --panel: #eef2f7; --panel-2: #e3e9f1; --card: #ffffff; --text: #1b2430;
    --muted: #5a6877; --line: #d4dce6; --tint: #fff3e5; --code: #f3f5f8;
    --shadow: 0 1px 2px rgba(16, 32, 56, .06), 0 4px 16px rgba(16, 32, 56, .05);
  }
  button.primary, .btn.primary, .chip.new { color: #fff; }
}

html { font-size: 22px; }            /* rem inside visualizations scales from here */
html, body { margin: 0; height: 100%; overflow: hidden; background: #0d1520; }
body { font-size: 28px; line-height: 1.4; }

.deck { position: absolute; left: 50%; top: 50%; width: 1280px; height: 720px; transform-origin: 0 0; }
.slide {
  position: absolute; inset: 0; display: none; flex-direction: column;
  background: #fbfcfd; color: var(--text); padding: 24px 60px 22px; overflow: hidden;
}
.slide.active { display: flex; }
.slide > .eb { font-size: 27px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--orange); margin: 0; }
.slide > h2 {
  font-size: 44px; line-height: 1.12; margin: 2px 0 14px; padding: 0; border: 0; color: var(--blue);
  max-width: 1100px;
}
.slide-body { flex: 1; min-height: 0; overflow: hidden; position: relative; }
.fit { transform-origin: 0 0; }
.slide p, .slide li { max-width: none; margin: 0 0 14px; }
.slide ul, .slide ol { margin: 0; padding-left: 1.1em; }
.slide li { margin-bottom: 12px; }
.slide .src { font-size: 27px; font-style: italic; color: var(--muted); margin: 8px 0 0; border-top: 1px solid var(--line); padding-top: 6px; }
.slide .note { font-size: 27px; }
.slide .big { font-size: 46px; font-weight: 700; line-height: 1.2; color: var(--deep); }
.slide .lede { font-size: 32px; color: var(--muted); max-width: none; }
.slide h3, .slide h4 { color: var(--deep); margin: 0 0 8px; }
.slide h4 { font-size: 32px; }
.slide code { font-size: .9em; }
.slide .src code { font-size: 1em; }
.slide .katex { font-size: 1.08em; }
.slide .katex-display { margin: 10px 0; }

/* cards and verdicts at slide scale */
.slide .grid { gap: 22px; }
.slide .card { padding: 20px 24px; box-shadow: none; }
.slide .card h4 { font-size: 32px; margin-bottom: 6px; }
.slide .card p { font-size: 28px; }
.slide .grid.tight .card { padding: 10px 22px; }
.slide .card .tag { font-size: 27px; }
.slide .verdict { gap: 14px; margin: 18px 0 0; }
.slide .verdict div { padding: 14px 20px; font-size: 30px; }
.slide .callout { font-size: 30px; padding: 18px 24px; margin: 14px 0; }
.slide table { font-size: 28px; }
.slide th { font-size: 27px; }
.slide td, .slide th { padding: 10px 14px; }
/* matrices keep their own compact cells */
.slide .mat table { font-size: .72rem; }
.slide .mat td, .slide .mat th { padding: 0; }
.slide .mat th { font-size: .72rem; padding: 0 .25em; }
.slide .timeline li { padding: 2px 0 10px 28px; font-size: 29px; }
.slide .timeline li::before { top: 14px; }

/* references: APA, at the foot of every slide that mentions prior work (filled by slides.js) */
/* entries run on, one after another, so short references share a line */
.slide .refs { margin: auto 0 0; padding: 4px 0 0; border-top: 1px solid var(--line); font-size: 27px; line-height: 1.18; color: var(--muted); }
.slide .slide-body + .refs { margin-top: 8px; }
.slide .src + .refs { margin-top: 0; border-top: 0; padding-top: 0; }
.slide .refs > span + span::before { content: "·"; margin: 0 .45em 0 .25em; color: var(--orange); font-weight: 700; }
.slide .refs a { color: inherit; text-decoration: none; }
.slide a[data-ref] { color: inherit; text-decoration: underline dotted 2px; text-decoration-color: var(--line); text-underline-offset: 5px; }
.slide .refs a:hover, .slide a[data-ref]:hover { color: var(--orange-2); }
.slide.blue .refs { color: #b9cde6; border-color: rgba(255, 255, 255, .25); margin-bottom: 66px; }
.slide .missing { color: var(--bad); }

/* the history reel (Timeline slide): sketches, the rolling list, and the current step's papers */
.slide .reel-stage { height: 322px; }
.slide .reel-frame { width: 460px; }
.slide .reel-frame figcaption { font-size: 27px; line-height: 1.1; margin-top: -8px; }
.slide .reel-badge { font-size: 20px; }
.slide .reel-list li { padding: 4px 0 4px 28px; margin: 0; }
.slide .reel-list li::before { top: 16px; }
.slide-body:has(> .fit > .reel) > .fit, .slide .reel { height: 100%; }
.slide .refs.live { flex: none; height: calc(3 * 1.18em + 5px); overflow: hidden; }

/* visualizations on a slide: the slide title replaces the viz header, the slide
   source line replaces its footer */
.slide .viz { margin: 0; border: 0; box-shadow: none; background: transparent; overflow: visible; }
.slide .viz-head, .slide .viz-foot { display: none; }
.slide .viz-body { padding: 0; }
.slide .controls { margin: 0 0 10px; gap: 10px 22px; }
.slide .controls input[type=range] { width: 190px; }
.slide .card[style*="sticky"] { position: static !important; }
.slide .readout { font-size: 22px; }
.slide .viz h4 { font-size: 24px; margin: 8px 0 4px; }

/* per-visualization sizing: diagrams are sized by height so their text stays legible */

/* diagram text one step larger than on the web page */
.slide .s-text { font-size: 15px; }
.slide .s-text.m { font-size: 13.5px; }
.slide .s-text.mono { font-size: 14px; }
/* ConvNeXt: the paper's stage groups crowd the step names at this size */
.slide [data-viz=convnext] text.s-text.m[text-anchor="start"] { display: none; }

/* side layout: the diagram at full height on the left, controls and readout on the right */
.slide .side .viz-body { display: grid; grid-template-columns: auto minmax(0, 1fr); column-gap: 26px; align-items: start; }
.slide .side .viz-body > svg { grid-column: 1; grid-row: 1 / span 8; height: 540px; width: auto; }
.slide [data-viz=convnext].side .viz-body > svg { height: 440px; }
.slide .side .viz-body > :not(svg) { grid-column: 2; }
.slide .side .controls { flex-direction: column; align-items: flex-start; }
.slide .side .controls input[type=range] { width: 130px; }
.slide .side .readout { font-size: 19px; }
.slide [data-viz=mlp].side .viz-body > svg { height: 430px; }

/* the architecture: diagram left at full height, controls and component card right */
.slide [data-viz=architecture] .viz-body { display: grid; grid-template-columns: auto minmax(0, 1fr); column-gap: 26px; align-items: start; }
.slide [data-viz=architecture] .viz-body > .controls { grid-column: 2; grid-row: 1; }
.slide [data-viz=architecture] .viz-body > .two { display: contents; }
.slide [data-viz=architecture] .two > div:first-child { grid-column: 1; grid-row: 1 / span 2; }
.slide [data-viz=architecture] .two > div:last-child { grid-column: 2; grid-row: 2; }
.slide [data-viz=architecture] svg { height: 505px; width: auto; }
.slide [data-viz=architecture] .s-text.b { font-size: 15.5px; }
.slide [data-viz=architecture] .card, .slide [data-viz=architecture] .card p { font-size: 25px; }

.slide [data-viz=longRange] svg { height: 280px; }
.slide [data-viz=seq2seq] svg { height: 290px; width: auto; }
.slide [data-viz=tableSize] svg { height: 310px; width: auto; }
.slide [data-viz=chainFan] svg { height: 320px; }
.slide [data-viz=residual] svg { height: 300px; }
.slide [data-viz=params] svg { height: 260px; }
.slide [data-viz=layerNorm] svg:nth-of-type(1) { height: 160px; }
.slide [data-viz=layerNorm] svg:nth-of-type(2) { height: 140px; }
.slide [data-viz=mlpBlock] .two svg { height: 320px; width: auto; }
.slide [data-viz=rnn] svg:nth-of-type(1) { height: 205px; }
.slide [data-viz=rnn] svg:nth-of-type(2) { height: 140px; }

/* LSTM over two slides: the cell, then what survives many steps */
.slide [data-viz=lstm][data-show=cell] .viz-body > h4,
.slide [data-viz=lstm][data-show=cell] .viz-body > svg:nth-of-type(2) { display: none; }
.slide [data-viz=lstm][data-show=cell] .viz-body > svg:nth-of-type(1) { height: 255px; }
.slide [data-viz=lstm][data-show=curve] .viz-body > svg:nth-of-type(1),
.slide [data-viz=lstm][data-show=curve] .viz-body > .readout,
.slide [data-viz=lstm][data-show=curve] .viz-body > h4,
.slide [data-viz=lstm][data-show=curve] .controls label:not(:first-child) { display: none; }
.slide [data-viz=lstm][data-show=curve] .viz-body > svg:nth-of-type(2) { height: 412px; }

/* attention over two slides: computing the scores, then weights and output */
.slide [data-viz=attention] .mats { gap: 14px 26px; }
.slide [data-viz=attention] .mat table { font-size: .8rem; }
.slide [data-viz=attention] .mat td { width: 2.6em; height: 1.75em; }
.slide [data-viz=attention] .chips .chip { font-size: .85rem; padding: .1rem .45rem; }
.slide [data-viz=attention][data-show=compute] .mats > .mat:nth-child(n+6),
.slide [data-viz=attention][data-show=compute] .viz-body > svg,
.slide [data-viz=attention][data-show=compute] .viz-body > .readout,
.slide [data-viz=attention][data-show=compute] .steps button:nth-child(n+4) { display: none; }
.slide [data-viz=attention][data-show=weights] .mats > .mat:nth-child(-n+5),
.slide [data-viz=attention][data-show=weights] .steps button:nth-child(-n+3) { display: none; }
.slide [data-viz=attention][data-show=weights] .viz-body > svg { height: 130px; }
.slide [data-viz=embeddings] .mat td { width: 2.4em; height: 1.6em; }

/* embedded demos fill the slide */
.slide .demo { margin: 0; box-shadow: none; }
/* the stage takes whatever height the head, foot and reference footer leave */
.slide-body:has(> .fit > .demo) > .fit { height: 100%; display: flex; flex-direction: column; }
.slide .demo { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.slide .demo-stage { aspect-ratio: auto; flex: 1; height: auto; min-height: 0; max-height: none; }
.slide .demo-head .t { font-size: 28px; }
.slide .demo-head .by { font-size: 27px; }
.slide .demo-foot { font-size: 27px; }

/* full-bleed blue slides: title, dividers, breaks, close */
.slide.blue { background: var(--blue); color: #fff; }
.slide.blue::after { content: ""; position: absolute; left: 0; right: 0; bottom: 56px; height: 6px; background: linear-gradient(90deg, var(--blue) 0 6%, var(--orange) 6% 100%); }
.slide.blue h1, .slide.blue h2 { color: #fff; }
.slide.blue .eb { color: var(--orange); }
.slide.blue p { color: #d7e3f2; }
.slide.blue .badge { font-size: 27px; padding: 6px 16px; }
.slide.blue h1 { font-size: 64px; line-height: 1.08; margin: 22px 0 18px; }
.seg { display: grid; grid-template-columns: 56px 1fr auto; gap: 16px; align-items: center; margin: 12px 0; font-size: 32px; }
.seg b { background: var(--orange); color: #fff; display: grid; place-items: center; height: 48px; border-radius: 6px; }
.seg span:last-child { color: var(--orange); font-weight: 700; font-size: 28px; }
.brk { display: flex; gap: 48px; align-items: center; margin-top: 120px; }
.brk .pill { background: var(--orange); color: #fff; font-size: 64px; font-weight: 800; padding: 26px 52px; border-radius: 18px; }
.brk .when { font-size: 44px; font-weight: 700; }
.brk .when small { display: block; font-size: 32px; font-weight: 400; color: #d7e3f2; margin-top: 10px; }

/* board slides: deliberately sparse */
.slide.board { background: #fffdf8; }
.slide.board > .eb { color: var(--orange-2); }
.board-steps { counter-reset: s; list-style: none; padding: 0; }
.board-steps li { counter-increment: s; position: relative; padding-left: 62px; margin: 0 0 20px; font-size: 32px; min-height: 42px; }
.board-steps li::before { content: counter(s); position: absolute; left: 0; top: 2px; color: #fff; background: var(--orange); border-radius: 50%; width: 42px; height: 42px; display: grid; place-items: center; font-size: 24px; font-weight: 700; }

/* deck chrome */
.chrome { position: fixed; inset: auto 0 0 0; height: 5px; background: rgba(255, 255, 255, .08); z-index: 10; }
.chrome i { display: block; height: 100%; width: 0; background: var(--orange); transition: width .2s; }
.slide .num { position: absolute; right: 26px; bottom: 16px; font-size: 20px; color: var(--muted); font-variant-numeric: tabular-nums; }
.slide.blue .num { color: #9fb6d3; }
.navbtn { position: fixed; bottom: 14px; z-index: 11; width: 44px; height: 44px; border-radius: 50%; border: 0; background: rgba(0, 0, 0, .35); color: #fff; font-size: 22px; opacity: 0; transition: opacity .2s; }
body:hover .navbtn { opacity: .7; }
.navbtn.prev { left: 14px; } .navbtn.next { right: 14px; }
.feedback { position: fixed; right: 18px; bottom: 70px; z-index: 11; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--blue-2); color: #fff; box-shadow: 0 2px 8px rgba(0, 0, 0, .25); opacity: .22; transition: opacity .2s, transform .2s, background .2s; }
.feedback:hover, .feedback:focus-visible { opacity: 1; transform: scale(1.1); background: var(--orange); }
.help { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 11; background: rgba(0,0,0,.72); color: #fff; font: 15px/1.4 var(--font); padding: 8px 14px; border-radius: 8px; opacity: 0; transition: opacity .4s; pointer-events: none; }
.help.show { opacity: 1; }
.blackout { position: fixed; inset: 0; background: #000; z-index: 30; display: none; }
.blackout.on { display: block; }
.overview { position: fixed; inset: 0; z-index: 40; background: rgba(8, 14, 22, .96); overflow: auto; padding: 32px; display: none; font-family: var(--font); }
.overview.on { display: block; }
.overview ol { list-style: none; margin: 0 auto; padding: 0; max-width: 1400px; display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.overview button { width: 100%; text-align: left; font-size: 15px; background: #16222f; color: #dfe8f1; border: 1px solid #2a3a4c; padding: 10px 12px; border-radius: 8px; }
.overview button b { color: var(--orange); margin-right: 8px; }
.overview button.cur { border-color: var(--orange); }
.overview .ov-part { max-width: 1400px; margin: 0 auto 26px; padding: 14px 16px 16px; border-radius: 10px; border: 1px solid transparent; }
.overview .ov-part.here { border-color: #3a4d63; background: rgba(255, 255, 255, .03); }
.overview .ov-part h3 { margin: 0 0 10px; font-size: 20px; font-weight: 700; color: #fff; letter-spacing: .01em; }
.overview .ov-part.here h3::after { content: "you are here"; margin-left: 12px; font-size: 13px; font-weight: 600; color: var(--orange); text-transform: uppercase; letter-spacing: .06em; }
.overview .ov-part h4 { margin: 14px 0 8px; font-size: 14px; font-weight: 600; color: #9fb3c8; text-transform: uppercase; letter-spacing: .06em; }
.overview .ov-part h4.here { color: var(--orange); }
.overview button.cur { background: #2a2416; color: #fff; }

/* print / save as PDF: one slide per page */
@page { size: 1280px 720px; margin: 0; }
@media print {
  html, body { overflow: visible; height: auto; background: #fff; }
  .deck { position: static; transform: none !important; width: 1280px; height: auto; }
  .slide { display: flex !important; position: relative; width: 1280px; height: 720px; break-after: page; }
  .chrome, .navbtn, .feedback, .help, .overview, .blackout { display: none !important; }
  .slide .reel-stage { display: none; }
  .slide .reel-list { -webkit-mask-image: none; mask-image: none; }
  .slide .reel-list > ol { transform: none !important; }
  .slide .reel-list li { opacity: 1; }
}