@font-face {
  font-family: "ETBembo";
  src: url("https://cdnjs.cloudflare.com/ajax/libs/tufte-css/1.8.0/et-book/et-book-display-italic-old-style-figures/et-book-display-italic-old-style-figures.woff") format("woff");
  font-style: italic;
  font-weight: 400;
}

@font-face {
  font-family: "ETBembo";
  src: url("https://cdnjs.cloudflare.com/ajax/libs/tufte-css/1.8.0/et-book/et-book-roman-line-figures/et-book-roman-line-figures.woff") format("woff");
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "ETBembo";
  src: url("https://cdnjs.cloudflare.com/ajax/libs/tufte-css/1.8.0/et-book/et-book-bold-line-figures/et-book-bold-line-figures.woff") format("woff");
  font-style: normal;
  font-weight: 700;
}

:root {
  --ink: #161616;
  --muted: #686868;
  --faint: #ece9e4;
  --paper: #fff;
  --accent: #9a1b1b;
  --teal: #1b6f7a;
  --violet: #6956a8;
  --green: #28784b;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

html,
body,
.reveal {
  background: var(--paper);
}

.reveal {
  color: var(--ink);
  font-family: "ETBembo", "Palatino Linotype", Palatino, Georgia, serif;
  font-size: 30px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

.reveal .slides {
  text-align: left;
}

.reveal .slides section {
  box-sizing: border-box;
  padding: 0 42px;
}

.reveal h1,
.reveal h2,
.reveal h3,
.reveal p {
  color: inherit;
  font-family: inherit;
  text-transform: none;
}

.reveal h1 {
  font-size: 2.05em;
  font-weight: 400;
  letter-spacing: -.025em;
  line-height: 1.03;
  margin: 0 0 .5em;
}

.reveal h2 {
  font-size: 1.38em;
  font-weight: 400;
  letter-spacing: -.015em;
  line-height: 1.12;
  margin: 0 0 .48em;
}

.reveal h3 {
  font-size: .9em;
  font-style: italic;
  font-weight: 400;
  margin: .25em 0;
}

.reveal p,
.reveal li {
  line-height: 1.36;
}

.reveal strong {
  font-weight: 700;
}

.reveal a {
  color: var(--accent);
}

.reveal .muted {
  color: var(--muted);
}

.reveal .small {
  font-size: .63em;
}

.reveal .tiny {
  font-size: .5em;
}

.reveal .accent {
  color: var(--accent);
}

.reveal .kicker,
.reveal .depth {
  color: var(--muted);
  font-size: .49em;
  letter-spacing: .17em;
  margin: 0 0 1em;
  text-transform: uppercase;
}

.reveal .deck-title {
  font-size: .7em;
  margin-top: .35em;
}

.reveal .claim {
  font-size: 1.08em;
  line-height: 1.3;
  margin: .2em 0 .85em;
  max-width: 1000px;
}

.reveal .support {
  color: var(--muted);
  font-size: .72em;
  max-width: 980px;
}

.titleslide {
  display: flex !important;
  flex-direction: column;
  height: 100%;
  justify-content: center;
  top: 0 !important;
}

.titleslide .logos {
  align-items: center;
  display: flex;
  justify-content: space-between;
  left: 46px;
  position: absolute;
  right: 46px;
  top: 40px;
}

.titleslide .erc {
  width: 154px;
}

.titleslide .addi {
  width: 184px;
}

.titleslide .authors {
  font-size: .64em;
  margin: .3em 0 .2em;
}

.titleslide .title-affil {
  color: var(--muted);
  font-size: .53em;
  line-height: 1.55;
}

.titleslide h1 {
  font-size: 1.87em;
  letter-spacing: -.015em;
  line-height: 1.15;
}

.titleslide .venue {
  color: var(--muted);
  font-size: .78em;
  margin-top: 1.4em;
}

.scene {
  margin: 0 auto;
  max-width: 1080px;
}

.candidate-row {
  align-items: center;
  display: flex;
  gap: 1.5em;
  justify-content: center;
  margin: .55em auto 1em;
}

.candidate {
  align-items: center;
  background: #fff;
  border: 2px solid var(--ink);
  border-radius: 50%;
  display: inline-flex;
  font-size: 1.05em;
  height: 2.35em;
  justify-content: center;
  position: relative;
  width: 2.35em;
}

.candidate.winner {
  border-color: var(--accent);
  box-shadow: 0 0 0 8px rgba(154, 27, 27, .08);
  color: var(--accent);
}

.candidate.winner::after {
  color: var(--accent);
  content: "winner";
  font-size: .37em;
  left: 50%;
  letter-spacing: .08em;
  position: absolute;
  text-transform: uppercase;
  top: 6.7em;
  transform: translateX(-50%);
}

.margin-list {
  margin: 0 auto;
  max-width: 710px;
}

.margin-row {
  align-items: center;
  display: grid;
  font-size: .72em;
  gap: .8em;
  grid-template-columns: 90px 1fr 70px;
  margin: .42em 0;
}

.track {
  background: var(--faint);
  height: 10px;
  overflow: hidden;
}

.fill {
  background: var(--accent);
  height: 100%;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .48s var(--ease);
}

.visible .fill,
.present .fill.animate {
  transform: scaleX(1);
}

.conversation {
  align-items: stretch;
  display: grid;
  gap: 1.5em;
  grid-template-columns: 1fr 1px 1fr;
  margin: .5em auto;
  max-width: 900px;
}

.conversation .rule {
  background: var(--faint);
}

.conversation .side {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 280px;
}

.split-band {
  display: flex;
  height: 50px;
  margin: .65em 0;
  width: 100%;
}

.split-band span {
  align-items: center;
  color: #fff;
  display: flex;
  font-size: .68em;
  justify-content: center;
}

.split-band .yes {
  background: var(--accent);
}

.split-band .no {
  background: var(--teal);
}

.question-prompt {
  border-bottom: 1px solid var(--faint);
  border-top: 1px solid var(--faint);
  font-size: 1.25em;
  margin: 1.2em auto;
  max-width: 900px;
  padding: .65em 0;
  text-align: center;
}

.pair-grid {
  display: grid;
  gap: 1.05em;
  grid-template-columns: repeat(3, 1fr);
  margin: .75em auto;
  max-width: 980px;
}

.pair-card {
  border-top: 2px solid var(--ink);
  padding-top: .55em;
}

.pair-card .score {
  color: var(--accent);
  font-size: 1.45em;
  margin: .16em 0;
}

.comparison-stage {
  align-items: center;
  display: grid;
  gap: 1.1em;
  grid-template-columns: 1fr 180px 1fr;
  margin: .55em auto;
  max-width: 1060px;
}

.profile-box {
  min-height: 330px;
  position: relative;
}

.profile-title {
  font-size: .74em;
  margin: 0 0 .5em;
  text-align: center;
}

.ranking-list {
  display: grid;
  font-size: .64em;
  gap: .2em;
  grid-template-columns: repeat(2, 1fr);
}

.ranking-list span {
  border-bottom: 1px solid var(--faint);
  padding: .3em .4em;
}

.fixed-margins {
  color: var(--muted);
  font-size: .65em;
  line-height: 1.65;
  text-align: center;
}

.fixed-margins strong {
  color: var(--accent);
  display: block;
  font-size: 1.4em;
}

.histogram {
  align-items: flex-end;
  border-bottom: 1px solid var(--muted);
  display: flex;
  gap: 10px;
  height: 180px;
  justify-content: center;
  padding: 0 12px;
}

.histogram .bar {
  background: var(--bar-color, var(--accent));
  min-height: 2px;
  position: relative;
  transition: height .48s var(--ease);
  width: 38px;
}

.histogram .bar span {
  bottom: -1.55em;
  color: var(--muted);
  font-size: .42em;
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
}

.histogram.compact {
  height: 125px;
  gap: 7px;
}

.histogram.compact .bar {
  width: 31px;
}

.hist-grid {
  display: grid;
  gap: .75em;
  grid-template-columns: repeat(3, 1fr);
  margin: .4em auto;
  max-width: 1080px;
}

.hist-card {
  min-width: 0;
  text-align: center;
}

.hist-card h3 {
  font-size: .68em;
  font-style: normal;
  margin-bottom: .3em;
}

.stats-line {
  color: var(--muted);
  font-size: .53em;
  line-height: 1.55;
  margin-top: 1.45em;
}

.stats-line .same {
  color: var(--ink);
  white-space: nowrap;
}

.pipeline {
  align-items: center;
  display: grid;
  gap: .7em;
  grid-template-columns: 1.15fr 54px 1fr 54px .8fr;
  margin: 1.1em auto;
  max-width: 1040px;
}

.pipeline .object {
  border-bottom: 2px solid var(--ink);
  min-height: 175px;
  padding: .45em;
}

.pipeline .arrow {
  color: var(--accent);
  font-size: 1.45em;
  text-align: center;
}

.pipeline .label {
  color: var(--muted);
  font-size: .52em;
  letter-spacing: .1em;
  margin-bottom: .65em;
  text-transform: uppercase;
}

.mini-rankings {
  color: var(--muted);
  font-size: .64em;
  line-height: 1.55;
}

.score-disc {
  align-items: center;
  border: 2px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  display: flex;
  font-size: 1.5em;
  height: 105px;
  justify-content: center;
  margin: .2em auto;
  width: 105px;
}

.subset-stage {
  display: grid;
  gap: 1.2em;
  grid-template-columns: .75fr 1.25fr;
  margin: .65em auto;
  max-width: 980px;
}

.subset {
  align-items: center;
  display: flex;
  gap: .55em;
  justify-content: center;
  margin: .45em 0;
}

.subset .candidate {
  font-size: .75em;
}

.choice-table {
  border-collapse: collapse;
  font-size: .64em;
  width: 100%;
}

.choice-table th,
.choice-table td {
  border-bottom: 1px solid var(--faint);
  padding: .62em .55em;
  text-align: center;
}

.choice-table th:first-child {
  text-align: left;
}

.choice-table .new-row {
  color: var(--accent);
}

.ladder {
  margin: .8em auto;
  max-width: 920px;
  position: relative;
}

.ladder::before {
  background: var(--ink);
  bottom: 0;
  content: "";
  left: 124px;
  position: absolute;
  top: 0;
  width: 2px;
}

.rung {
  align-items: center;
  display: grid;
  gap: .9em;
  grid-template-columns: 100px 1fr;
  margin: .72em 0;
  min-height: 54px;
}

.rung .degree {
  color: var(--accent);
  font-size: .72em;
  text-align: right;
}

.rung .measures {
  border-left: 18px solid var(--paper);
  font-size: .72em;
  padding-left: 1.2em;
}

.rung.muted-rung {
  opacity: .33;
}

.moment-stage {
  align-items: center;
  display: grid;
  gap: 1.1em;
  grid-template-columns: 1.15fr .85fr;
  margin: .2em auto;
  max-width: 1040px;
}

.moment-plane {
  border-bottom: 2px solid var(--ink);
  border-left: 2px solid var(--ink);
  height: 360px;
  margin: 0 auto;
  position: relative;
  width: 560px;
}

.moment-plane::before {
  color: var(--muted);
  content: "asymmetry  →";
  font-size: .5em;
  position: absolute;
  right: 0;
  top: calc(100% + .6em);
}

.moment-plane::after {
  color: var(--muted);
  content: "tail sensitivity  →";
  font-size: .5em;
  left: -6.8em;
  position: absolute;
  top: 0;
  transform: rotate(-90deg);
  transform-origin: right top;
}

.moment-point {
  align-items: center;
  background: var(--point-color, var(--accent));
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--point-color, var(--accent));
  color: #fff;
  cursor: pointer;
  display: flex;
  font: 700 14px/1 sans-serif;
  height: 31px;
  justify-content: center;
  left: var(--x);
  position: absolute;
  top: var(--y);
  transform: translate(-50%, -50%);
  width: 31px;
}

.moment-point:focus-visible,
.protocol-button:focus-visible,
.branch-entry:focus-visible,
.branch-nav button:focus-visible {
  outline: 4px solid rgba(154, 27, 27, .35);
  outline-offset: 4px;
}

.moment-point[aria-pressed="true"] {
  box-shadow: 0 0 0 7px rgba(154, 27, 27, .12);
}

.moment-detail {
  min-width: 0;
}

.moment-values {
  font-size: .62em;
  line-height: 1.6;
  margin-top: 1.35em;
}

.real-figure {
  display: block;
  margin: .25em auto;
  max-height: 440px !important;
  max-width: 920px;
  width: 88%;
}

.cost-pair {
  display: grid;
  gap: 2.4em;
  grid-template-columns: 1fr 1fr;
  margin: 1.15em auto;
  max-width: 900px;
}

.cost {
  border-top: 2px solid var(--ink);
  padding-top: .55em;
}

.cost .number {
  color: var(--accent);
  font-size: 2em;
  line-height: 1;
}

.cost .label {
  color: var(--muted);
  font-size: .62em;
  margin-top: .35em;
}

.sequence {
  align-items: center;
  display: flex;
  gap: .45em;
  justify-content: center;
  margin: .85em auto;
}

.sequence .candidate {
  font-size: .82em;
}

.sequence .connector {
  color: var(--muted);
}

.rounds,
.triples {
  display: grid;
  gap: .45em;
  margin: .4em auto;
  max-width: 870px;
}

.round,
.triple {
  align-items: center;
  border-bottom: 1px solid var(--faint);
  display: grid;
  font-size: .65em;
  gap: 1em;
  grid-template-columns: 1fr 1fr;
  padding: .45em .2em;
}

.round strong,
.triple strong {
  color: var(--accent);
}

.tradeoff {
  display: grid;
  gap: 1em;
  grid-template-columns: 1.15fr .85fr;
  margin: .35em auto;
  max-width: 1050px;
}

.tradeoff-chart {
  border-bottom: 2px solid var(--ink);
  border-left: 2px solid var(--ink);
  height: 345px;
  position: relative;
}

.protocol-point {
  align-items: center;
  background: #fff;
  border: 3px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  display: flex;
  font-size: .48em;
  height: 48px;
  justify-content: center;
  left: var(--x);
  position: absolute;
  text-align: center;
  top: var(--y);
  transform: translate(-50%, -50%);
  width: 48px;
}

.protocol-point.square {
  border-color: var(--teal);
  border-radius: 0;
  color: var(--teal);
}

.tradeoff-copy {
  align-self: center;
}

.tradeoff-copy p {
  font-size: .72em;
}

.design-principle {
  align-items: center;
  display: grid;
  gap: .8em;
  grid-template-columns: 1fr 52px 1fr 52px 1fr;
  margin: 1.1em auto;
  max-width: 1080px;
}

.design-principle .step-box {
  border-top: 2px solid var(--ink);
  min-height: 155px;
  padding-top: .6em;
}

.design-principle .num {
  color: var(--accent);
  font-size: .58em;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.design-principle .body {
  font-size: .78em;
  margin-top: .55em;
}

.design-principle .arrow {
  color: var(--accent);
  text-align: center;
}

.closing-line {
  color: var(--accent);
  font-size: 1.2em;
  margin-top: 1em;
  text-align: center;
}

.branch-entry {
  background: #fff;
  border: 1px solid var(--accent);
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  font-size: .48em;
  padding: .55em .75em;
  position: absolute;
  right: 46px;
  top: -44px;
}

.technical {
  padding-top: 18px !important;
}

.technical .depth {
  margin-bottom: .5em;
}

.technical h2 {
  font-size: 1.13em;
}

.technical p,
.technical li {
  font-size: .7em;
}

.technical .equation {
  font-size: .67em;
  margin: .65em auto;
  text-align: center;
}

.technical .proof-step {
  border-left: 2px solid var(--accent);
  margin: .65em 0;
  padding-left: .75em;
}

.technical table {
  border-collapse: collapse;
  font-size: .57em;
  width: 100%;
}

.technical th,
.technical td {
  border-bottom: 1px solid var(--faint);
  padding: .45em;
  text-align: center;
}

.branch-nav {
  display: flex;
  gap: .6em;
  justify-content: flex-end;
  margin-top: .75em;
  position: static;
}

.branch-nav button {
  background: #fff;
  border: 1px solid var(--muted);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: .45em;
  padding: .5em .65em;
}

.branch-nav button:last-child {
  border-color: var(--accent);
  color: var(--accent);
}

.reveal .controls {
  color: var(--muted);
}

.reveal .progress {
  color: var(--accent);
}

.reveal .slide-number {
  color: var(--muted);
  font-size: 13px;
}

.reveal .fragment:not(.custom) {
  transform: translateY(7px);
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}

.reveal .fragment.visible:not(.custom) {
  transform: none;
}

/* Preserve the original figure composition and frame size. */
.reveal .slides > section:has(> .original-asset) {
  padding: 0;
}

.reveal .slides section.original-asset {
  padding: 0 1.2rem;
}

.original-asset .kicker {
  margin-bottom: .3em;
}

.asset-viewport {
  max-width: 100%;
  overflow-x: auto;
}

.mpframe {
  background: #fff;
  border: 0;
  display: block;
  height: 560px;
  width: 100%;
}

.mpframe.pareto-frame,
.technical .mpframe {
  height: 510px;
}

.reveal .mphint {
  font-size: .64em;
  line-height: 1.35;
  margin: .3em 0 0;
  text-align: center;
}

.reveal .mpstep {
  height: 0;
  overflow: hidden;
  pointer-events: none;
  position: absolute;
  width: 0;
}

.source-figure {
  display: block;
  height: 510px;
  object-fit: contain;
  width: 100%;
}

.print-figure {
  display: none;
}

@media (max-width: 760px) {
  .reveal {
    font-size: 23px;
  }

  .reveal .slides section {
    padding: 0 24px;
  }

  .reveal .slides section:not(.stack) {
    box-sizing: border-box;
    height: 100%;
    overflow-y: auto;
    padding-bottom: 72px;
    padding-top: 54px;
  }

  .reveal .slides section.titleslide {
    justify-content: center;
    overflow: hidden;
  }

  .hist-grid,
  .pair-grid,
  .cost-pair {
    grid-template-columns: 1fr;
  }

  .hist-grid {
    gap: .15em;
  }

  .histogram.compact {
    height: 72px;
  }

  .comparison-stage,
  .moment-stage,
  .tradeoff,
  .subset-stage {
    grid-template-columns: 1fr;
  }

  .comparison-stage .fixed-margins {
    display: none;
  }

  .pipeline,
  .design-principle {
    grid-template-columns: 1fr;
  }

  .pipeline .arrow,
  .design-principle .arrow {
    transform: rotate(90deg);
  }

  .moment-plane,
  .tradeoff-chart {
    height: 235px;
    width: 88vw;
  }

  .branch-entry {
    float: right;
    margin: 0 0 .5em .7em;
    position: static;
  }

  .reveal .slides section.original-asset {
    padding: 54px 18px 72px;
  }

  .mpframe {
    min-width: 900px;
  }

  .source-figure {
    height: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

@media print {
  .original-asset .asset-viewport,
  .branch-entry,
  .branch-nav {
    display: none !important;
  }

  .print-figure {
    display: block;
    max-height: 540px;
    object-fit: contain;
    width: 100%;
  }
}