:root {
  --ink: #16202a;
  --muted: #65717f;
  --paper: #f7f8fb;
  --line: #e3e8ef;
  --purple: #7057ff;
  --teal: #1f9f8b;
  --coral: #e9684f;
  --amber: #d39b18;
  --blue: #2e74d7;
  --soft-purple: #f0edff;
  --soft-teal: #e9f7f4;
  --soft-coral: #fff0ed;
  --soft-blue: #edf4ff;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: white;
}

.reveal {
  color: var(--ink);
  font-family: Helvetica, Arial, sans-serif;
  background: white;
}

.reveal .slide-number {
  right: 18px;
  bottom: 16px;
  z-index: 40;
  padding: 7px 10px;
  border-radius: 6px;
  color: white;
  background: rgba(10, 16, 22, 0.72);
  font-family: Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
}

.reveal .slide-number a {
  color: inherit;
}

.reveal .slides section {
  box-sizing: border-box;
  height: 100%;
  padding: 26px 36px;
  text-align: left;
  --slide-logo-height: 78px;
  --slide-logo-width: 70px;
}

.reveal .slides section::before {
  content: "";
  position: absolute;
  top: 26px;
  right: 36px;
  z-index: 20;
  width: var(--slide-logo-width);
  height: var(--slide-logo-height);
  pointer-events: none;
  background: url("logo_htw.png") center / contain no-repeat;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.16));
}

.reveal h1,
.reveal h2,
.reveal h3 {
  color: var(--ink);
  font-family: Helvetica, Arial, sans-serif;
  letter-spacing: 0;
  text-transform: none;
}

.reveal h1 {
  font-size: 56px;
  line-height: 1.05;
  margin: 0;
}

.reveal h2 {
  font-size: 50px;
  font-weight: 800;
  line-height: 1.05;
  margin: 0 0 22px;
}

.reveal h2::after {
  content: "";
  display: block;
  width: 210px;
  height: 6px;
  margin-top: 12px;
  background: linear-gradient(90deg, var(--purple), var(--teal), var(--coral));
}

.reveal h2 em {
  color: var(--teal);
  font-style: italic;
}

.reveal h3 {
  font-size: 25px;
  margin: 0 0 8px;
}

.reveal p,
.reveal li,
.reveal table {
  font-size: 24px;
  line-height: 1.25;
}

.reveal mjx-container {
  display: inline-block;
  margin: 0 0.08em;
}

.htw-logo {
  position: absolute;
  left: 30px;
  top: 24px;
  z-index: 5;
  width: 236px;
  color: white;
}

.htw-brand {
  position: relative;
  display: grid;
  gap: 7px;
  box-sizing: border-box;
  min-height: 126px;
  padding: 16px 18px 18px;
  overflow: hidden;
  color: white;
  text-decoration: none;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 0;
  background: rgba(6, 10, 15, 0.76);
  box-shadow: 0 20px 38px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(8px);
}

.htw-brand::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0 42%, rgba(255, 255, 255, 0.16) 50%, transparent 58%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 34px);
  transform: translateX(-110%);
  animation: htw-scan 4.8s ease-in-out infinite;
}

.htw-brand::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 14px;
  height: 2px;
  background: linear-gradient(90deg, white, var(--teal), var(--coral));
}

.htw-short,
.htw-name,
.htw-subtitle {
  position: relative;
  z-index: 1;
}

.htw-short {
  font-size: 38px;
  line-height: 0.94;
  font-weight: 900;
  letter-spacing: 0;
}

.htw-name {
  margin-top: 8px;
  font-size: 20px;
  line-height: 1.05;
  font-weight: 900;
}

.htw-subtitle {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: 0.1em;
}

@keyframes htw-scan {

  0%,
  42% {
    transform: translateX(-115%);
  }

  72%,
  100% {
    transform: translateX(115%);
  }
}

.reveal .slides section.dance-title {
  padding: 0 !important;
  overflow: hidden;
  --slide-logo-height: 282px;
  --slide-logo-width: 251px;
}

.reveal .slides section.dance-title::before {
  top: 30px;
  right: auto;
  left: 36px;
}

.title-stage {
  position: relative;
  height: 100%;
  width: 100%;
  background: #101820;
}

.hero-video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transform: scale(1.05) translateX(29px) translateY(15px);
  transform-origin: center center;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 16, 22, 0.88), rgba(10, 16, 22, 0.56) 44%, rgba(10, 16, 22, 0.18)),
    linear-gradient(0deg, rgba(10, 16, 22, 0.76), rgba(10, 16, 22, 0.08) 44%);
}

.hero-copy {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  justify-items: center;
  width: 1040px;
  max-width: calc(100% - 112px);
  color: white;
  text-align: center;
  transform: translate(-50%, -42%);
}

.hero-copy h1,
.hero-copy .eyebrow {
  color: white;
}

.title-team {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 42px;
  margin-top: 38px;
}

.team-member {
  display: grid;
  justify-items: center;
  gap: 14px;
  width: 150px;
}

.team-photo-frame {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  overflow: hidden;
  box-sizing: border-box;
  background: white;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.28);
}

.team-photo-frame img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center center;
}

.team-member h3 {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 31px;
  line-height: 1;
  font-weight: 800;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.34);
}

.julien-member .team-photo-frame {
  border: 6px solid var(--purple);
}

.julien-member img {
  object-position: center top;
  transform: translateY(-28px) scale(1.18);
  transform-origin: center top;
}

.hai-member .team-photo-frame {
  border: 6px solid var(--teal);
}

.hai-member img {
  transform: scale(1.12);
  transform-origin: 48% 46%;
}

.emile-member .team-photo-frame {
  border: 6px solid var(--coral);
}

.emile-member img {
  transform: scale(1.88);
  transform-origin: 46% 66%;
}

.louis-member .team-photo-frame {
  border: 6px solid var(--blue);
}

.louis-member img {
  transform: scale(2.58);
  transform-origin: 53% 36%;
}

.eyebrow {
  margin: 0 0 18px;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
}

.wave-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 86px;
}

.wave-strip i {
  width: 11px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--purple), var(--teal));
}

.wave-strip i:nth-child(2n) {
  height: 58px;
  background: linear-gradient(180deg, var(--teal), var(--blue));
}

.wave-strip i:nth-child(3n) {
  height: 74px;
  background: linear-gradient(180deg, var(--coral), var(--amber));
}

.wave-strip i:nth-child(4n) {
  height: 42px;
}

.wave-strip i:nth-child(5n) {
  height: 64px;
}

.title-wave {
  position: absolute;
  left: 50%;
  bottom: 34px;
  z-index: 3;
  opacity: 0.96;
  gap: 10px;
  height: 116px;
  transform: translateX(-50%);
}

.title-wave i {
  width: 14px;
  height: 44px;
  border-radius: 10px;
  transform-origin: center;
  animation: title-wave-pulse 1.25s ease-in-out infinite;
}

.title-wave i:nth-child(2n) {
  height: 78px;
  animation-duration: 1.05s;
  animation-delay: -0.38s;
}

.title-wave i:nth-child(3n) {
  height: 100px;
  animation-duration: 1.48s;
  animation-delay: -0.74s;
}

.title-wave i:nth-child(4n) {
  height: 56px;
  animation-duration: 1.16s;
  animation-delay: -0.18s;
}

.title-wave i:nth-child(5n) {
  height: 88px;
  animation-duration: 1.36s;
  animation-delay: -0.92s;
}

.title-wave i:nth-child(7n) {
  animation-duration: 1.7s;
  animation-delay: -0.52s;
}

@keyframes title-wave-pulse {

  0%,
  100% {
    transform: scaleY(0.46);
  }

  24% {
    transform: scaleY(1);
  }

  48% {
    transform: scaleY(0.66);
  }

  72% {
    transform: scaleY(1.18);
  }
}

/* Motivation slide pseudo-audio wave animation */
.wave-strip.wave-animate i {
  transform-origin: center;
  animation-name: motivation-wave;
  animation-duration: 1.25s;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
}

@keyframes motivation-wave {

  0%,
  100% {
    transform: scaleY(0.5);
  }

  25% {
    transform: scaleY(1);
  }

  50% {
    transform: scaleY(0.66);
  }

  75% {
    transform: scaleY(1.18);
  }
}

/* Subtle color variant for the motivation strip */
.motivation-lead .wave-strip i {
  background: linear-gradient(180deg, rgba(49, 179, 153, 0.95), rgba(46, 116, 215, 0.95));
}

.reveal .slides section.full-video-slide {
  padding: 0 !important;
  overflow: hidden;
  width: 100% !important;
  height: 100% !important;
}

.reveal .slides section.full-video-slide::before {
  display: none;
}

.full-video-slide video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05) translateX(29px) translateY(15px);
  transform-origin: center center;
}

.pred-video-slide {
  background: white;
}

.pred-video-slide .pred-best-video {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  width: 86%;
  height: 82%;
  object-fit: contain;
  transform: translate(-50%, -50%) scale(1.04);
  transform-origin: center center;
  transition: left 360ms ease, top 360ms ease, width 360ms ease, height 360ms ease, transform 360ms ease;
}

.pred-video-slide .pred-mosaic-video {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.pred-video-slide:has(.pred-mosaic-video.visible) .pred-best-video {
  left: -60px;
  top: -20px;
  z-index: 3;
  width: 37%;
  height: 37%;
  transform: none;
}

.pred-best-labels {
  position: absolute;
  left: 50%;
  bottom: 78px;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 78px;
  width: min(780px, 74%);
  color: var(--ink);
  font-size: 44px;
  line-height: 1;
  font-weight: 900;
  text-align: center;
  transform: translateX(-50%);
  opacity: 1;
  pointer-events: none;
  transition: opacity 240ms ease;
}

.pred-video-slide:has(.pred-mosaic-video.visible) .pred-best-labels {
  opacity: 0;
}

.architectural-choices-slide {
  display: grid !important;
  align-content: center;
  gap: 58px;
}

.architectural-choices-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 42px;
  width: min(960px, 82%);
  margin: 0 auto;
}

.architectural-choices-grid article {
  display: grid;
  place-items: center;
  min-height: 190px;
  padding: 28px 24px;
  border: 4px solid #20282d;
  border-radius: 8px;
  background: white;
  color: var(--ink);
  font-size: 34px;
  line-height: 1.14;
  font-weight: 900;
  text-align: center;
  box-shadow: 0 16px 28px rgba(20, 31, 43, 0.1);
}

.usecases-slide {
  position: relative;
}

.usecases-stage {
  position: relative;
  height: 590px;
  margin-top: 6px;
}

.usecase-card {
  position: absolute;
  top: 48%;
  left: 50%;
  width: 760px;
  margin: 0;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.96);
  transition:
    left 680ms cubic-bezier(0.2, 0.78, 0.22, 1),
    top 680ms cubic-bezier(0.2, 0.78, 0.22, 1),
    width 680ms cubic-bezier(0.2, 0.78, 0.22, 1),
    opacity 440ms ease,
    transform 680ms cubic-bezier(0.2, 0.78, 0.22, 1);
}

.usecase-card video {
  display: block;
  width: 100%;
  height: 390px;
  object-fit: contain;
  border-radius: 8px;
  background: white;
  transition: height 680ms cubic-bezier(0.2, 0.78, 0.22, 1);
}

.usecase-card figcaption {
  margin-top: 16px;
  color: var(--ink);
  font-size: 34px;
  font-weight: 800;
  line-height: 1.16;
  text-align: center;
}

.video-usecases-slide .usecase-card figcaption {
  min-height: 60px;
}

.usecases .usecase-robust {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.usecases.step-1 .usecase-card {
  top: 50%;
  width: 430px;
}

.usecases.step-1 .usecase-card video {
  height: 315px;
}

.usecases.step-1 .usecase-card figcaption {
  font-size: 24px;
}

.usecases.step-1 .usecase-robust {
  left: 27%;
}

.usecases.step-1 .usecase-scalar {
  left: 73%;
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.usecases.step-2 .usecase-card {
  top: 50%;
  width: 380px;
}

.usecases.step-2 .usecase-card video {
  height: 300px;
}

.usecases.step-2 .usecase-card figcaption {
  font-size: 23px;
}

.usecases.step-2 .usecase-robust {
  left: 16%;
}

.usecases.step-2 .usecase-scalar {
  left: 50%;
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.usecases.step-2 .usecase-reconstruction {
  left: 84%;
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.video-question {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 4;
  width: min(980px, 86%);
  padding: 22px 34px;
  font-size: 58px;
  line-height: 1.02;
  transform: translate(-50%, -50%);
}

.compact {
  height: 54px;
  gap: 6px;
}

.compact i {
  width: 9px;
}

.motivation-grid {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 18px 26px;
  align-items: stretch;
  margin-top: 46px;
}

.motivation-lead {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 405px;
  padding: 24px;
  border-left: 8px solid var(--teal);
  background: var(--soft-teal);
}

.motivation-lead p {
  margin: 0 0 18px;
  font-size: 34px;
  line-height: 1.12;
  font-weight: 800;
}

.tension-board {
  position: relative;
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: 14px;
}

.tension-card {
  position: relative;
  box-sizing: border-box;
  min-height: 108px;
  padding: 14px 20px 13px 88px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 18px 34px rgba(20, 31, 43, 0.08);
}

.tension-card span {
  position: absolute;
  left: 20px;
  top: 18px;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  color: white;
  background: var(--purple);
  font-size: 20px;
  font-weight: 800;
}

.tension-card.body span {
  background: var(--teal);
}

.tension-card.horizon span {
  background: var(--coral);
}

.tension-card p {
  margin: 0;
  color: var(--muted);
  font-size: 19px;
}

.ai-question {
  grid-column: 1 / -1;
  box-sizing: border-box;
  padding: 16px 24px;
  border-left: 8px solid var(--purple);
  border-radius: 8px;
  color: white;
  background: linear-gradient(90deg, var(--purple), var(--teal));
  box-shadow: 0 16px 30px rgba(20, 31, 43, 0.12);
  font-size: 38px;
  line-height: 1.05;
  font-weight: 900;
  text-align: center;
}

.rescue-layout {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 8px;
  margin-top: 8px;
}

.rescue-diagram {
  display: grid;
  grid-template-columns: 230px 52px 230px 150px 270px;
  gap: 14px;
  align-items: center;
  min-height: 235px;
}

.rescue-node {
  box-sizing: border-box;
  display: grid;
  justify-items: center;
  align-content: center;
  min-height: 218px;
  padding: 14px 14px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 16px 32px rgba(20, 31, 43, 0.08);
  text-align: center;
}

.rescue-node h3 {
  margin-top: 8px;
  font-size: 22px;
}

.rescue-node p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.music-action {
  background: var(--soft-blue);
}

.pose-state {
  background: white;
}

.pose-state-video {
  width: 150px;
  height: 158px;
  overflow: hidden;
  border-radius: 6px;
  background: white;
}

.pose-state-video video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transform: scale(1.18);
  transform-origin: center center;
}

.motion-embedding {
  border-color: rgba(31, 159, 139, 0.42);
  background: var(--soft-teal);
}

.rescue-plus,
.rescue-arrow {
  display: grid;
  place-items: center;
  color: white;
  font-weight: 900;
}

.rescue-plus {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--purple);
  font-size: 38px;
}

.rescue-arrow {
  position: relative;
  height: 70px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--purple), var(--teal));
  font-size: 24px;
}

.rescue-arrow::after {
  content: "";
  position: absolute;
  right: -24px;
  border: 16px solid transparent;
  border-left-color: var(--teal);
}

.embedding-stack {
  display: grid;
  grid-template-columns: repeat(3, 28px);
  gap: 10px;
  justify-content: center;
}

.embedding-stack i {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--purple);
}

.embedding-stack i:nth-child(2n) {
  background: var(--teal);
}

.embedding-stack i:nth-child(3n) {
  background: var(--coral);
}

.representation-problem {
  box-sizing: border-box;
  width: min(1040px, 96%);
  justify-self: center;
  transform: translateY(60px);
  padding: 14px 20px;
  border-left: 8px solid var(--coral);
  border-radius: 8px;
  background: var(--soft-coral);
}

.representation-problem h3 {
  margin-bottom: 4px;
  font-size: 24px;
}

.representation-problem p,
.representation-problem strong {
  display: block;
  margin: 0;
  font-size: 19px;
  line-height: 1.2;
}

.representation-problem p {
  color: var(--muted);
  margin-bottom: 6px;
}

.rescue-question {
  margin: 8px auto 0;
  box-sizing: border-box;
  width: min(1040px, 96%);
  transform: translateY(60px);
  padding: 12px 20px;
  border-radius: 8px;
  color: white;
  background: linear-gradient(90deg, var(--purple), var(--teal));
  box-shadow: 0 16px 30px rgba(20, 31, 43, 0.12);
  font-size: 30px;
  line-height: 1.08;
  font-weight: 900;
  text-align: center;
}

.eb-jepa-board {
  position: relative;
  box-sizing: border-box;
  height: 590px;
  margin-top: -46px;
  padding: 0;
  border: 0;
  background: transparent;
}

.eb-row {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
}

.eb-context {
  left: 56px;
  top: 34px;
}

.eb-action {
  left: 506px;
  top: 250px;
}

.eb-target {
  left: 56px;
  top: 330px;
}

.eb-data {
  position: relative;
  display: grid;
  place-items: center;
  width: 96px;
  height: 96px;
  border: 4px solid #20282d;
  border-radius: 50%;
  color: white;
  background: #8b8b8b;
  font-size: 28px;
  font-weight: 900;
}

.eb-data .mini-skeleton {
  position: absolute;
  width: 52px;
  height: 74px;
  opacity: 0.28;
}

.eb-data span,
.music-action-icon {
  position: relative;
  z-index: 1;
}

.eb-motion-input {
  position: relative;
  display: grid;
  place-items: center;
  width: 232px;
  height: 152px;
  border: 0;
  border-radius: 0;
  overflow: visible;
  background: transparent;
  box-sizing: border-box;
}

.eb-motion-input img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.82;
  filter: drop-shadow(0 12px 18px rgba(20, 31, 43, 0.12));
}

.current-motion-input img {
  object-fit: contain;
}

.current-motion-input {
  width: 400px;
  height: 250px;
}

.eb-motion-input span {
  position: absolute;
  left: 50%;
  bottom: 0px;
  display: grid;
  place-items: center;
  width: 82px;
  height: 36px;
  padding: 0;
  border-radius: 999px;
  color: white;
  background: linear-gradient(90deg, #6fa979, #8bc88d);
  box-shadow: 0 8px 16px rgba(20, 31, 43, 0.16);
  font-size: 24px;
  font-weight: 900;
  transform: translateX(-50%);
}

.eb-motion-input span mjx-container {
  margin: 0;
}

.future-motion-input span {
  background: linear-gradient(90deg, #8e7ae6, #c9b7ff);
}

.future-motion-input {
  width: 400px;
  height: 250px;
}

.future-motion-input img {
  object-fit: contain;
}

.eb-music {
  width: 124px;
  height: 82px;
  border-radius: 8px;
  border-color: rgba(32, 40, 45, 0.9);
  overflow: visible;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent 44%),
    linear-gradient(135deg, #211b13 0%, #3a2a17 100%);
  box-shadow: 0 12px 22px rgba(77, 50, 16, 0.2);
}

.eb-music span {
  position: absolute;
  left: 50%;
  bottom: -35px;
  display: grid;
  place-items: center;
  min-width: 54px;
  height: 28px;
  padding: 0 11px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(90deg, #c6842f, #f1b56d);
  box-shadow: 0 8px 16px rgba(20, 31, 43, 0.16);
  font-size: 19px;
  font-weight: 900;
  transform: translateX(-50%);
}

.music-action-icon {
  position: absolute;
  left: 14px;
  top: 8px;
  width: 96px;
  height: 66px;
}

.music-staff-lines {
  fill: none;
  stroke: rgba(241, 181, 109, 0.34);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.music-beam,
.music-stem {
  fill: none;
  stroke: #f1b56d;
  stroke-width: 3.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.music-stem,
.music-beam {
  stroke: #f1b56d;
}

.music-notehead {
  fill: #f1b56d;
}

.music-notehead.accent {
  fill: #f1b56d;
}

.eb-encoder {
  --encoder-fill: #2f7894;
  position: relative;
  display: grid;
  place-items: center;
  width: 132px;
  height: 110px;
  color: white;
  background: #203845;
  clip-path: polygon(0 0, 100% 18%, 100% 82%, 0 100%);
  font-size: 34px;
  font-weight: 900;
}

.eb-encoder::before {
  content: "";
  position: absolute;
  inset: 4px;
  background: var(--encoder-fill);
  clip-path: inherit;
  pointer-events: none;
  z-index: 0;
}

.eb-encoder mjx-container {
  position: relative;
  z-index: 1;
}

.target-encoder {
  --encoder-fill: #2a9d8f;
}

.eb-repr {
  display: grid;
  place-items: center;
  width: 86px;
  height: 76px;
  border: 4px solid rgba(32, 40, 45, 0.92);
  border-radius: 8px;
  color: #fffaf0;
  background: #b89455;
  box-shadow: 0 10px 18px rgba(20, 31, 43, 0.12);
  font-size: 28px;
  font-weight: 900;
}

.eb-repr.predicted {
  width: 112px;
}

.eb-repr.current-state {
  background: #b89455;
}

.eb-repr.predicted-state {
  background: #b89455;
}

.eb-repr.future-state {
  background: #b89455;
}

.eb-predictor {
  display: grid;
  place-items: center;
  width: 138px;
  height: 100px;
  color: white;
  background: #86c9e6;
  border: 4px solid #203845;
  border-radius: 0 48px 48px 0;
  font-size: 34px;
  font-weight: 900;
}

.eb-loss-block {
  position: absolute;
  left: 1024px;
  top: 414px;
  display: grid;
  place-items: center;
  width: 92px;
  height: 82px;
  border: 4px solid rgba(32, 40, 45, 0.92);
  border-radius: 8px;
  color: #fffaf0;
  background: #c76f4d;
  box-shadow: 0 12px 22px rgba(77, 50, 16, 0.18);
  font-size: 34px;
  font-weight: 900;
  z-index: 2;
}

.eb-arrow {
  position: relative;
  width: 30px;
  height: 4px;
  background: #20282d;
}

.eb-arrow::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 50%;
  width: 18px;
  height: 18px;
  background: #20282d;
  clip-path: polygon(100% 50%, 0 0, 0 100%);
  transform: translateY(-50%);
}

.eb-action-line {
  position: relative;
  width: 227px;
  height: 4px;
  margin-left: 8px;
  background: #20282d;
}

.eb-action-line::after {
  content: "";
  position: absolute;
  right: -2px;
  top: -76px;
  width: 4px;
  height: 78px;
  background: #20282d;
}

.eb-action-line::before {
  content: "";
  position: absolute;
  right: -9px;
  top: -80px;
  width: 18px;
  height: 18px;
  background: #20282d;
  clip-path: polygon(50% 0, 0 100%, 100% 100%);
}

.eb-loss-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
}

.eb-loss-lines path {
  fill: none;
  stroke: #20282d;
  stroke-width: 4;
  stroke-linecap: square;
  marker-end: url("#loss-arrow");
}

.eb-loss-lines marker path {
  fill: #20282d;
  stroke: none;
}

.latent-steps {
  position: absolute;
  right: -4px;
  top: 38px;
  display: grid;
  gap: 13px;
  width: 204px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.latent-steps li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 10px;
  align-items: center;
  box-sizing: border-box;
  min-height: 68px;
  padding: 10px 12px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 12px 24px rgba(20, 31, 43, 0.08);
}

.latent-steps span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: white;
  background: var(--purple);
  font-size: 18px;
  font-weight: 900;
}

.latent-steps li:nth-child(2) span {
  background: var(--coral);
}

.latent-steps li:nth-child(3) span {
  background: var(--teal);
}

.latent-steps li:nth-child(4) span {
  background: var(--blue);
}

.latent-steps p {
  margin: 0;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.08;
  font-weight: 800;
}

.latent-loss {
  margin: 20px auto 0;
  width: min(1040px, 94%);
  padding: 16px 22px;
  border-left: 8px solid var(--coral);
  border-radius: 8px;
  background: var(--soft-coral);
  font-size: 27px;
  line-height: 1.15;
  font-weight: 900;
  text-align: center;
}

.dataset-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 34px;
  align-items: start;
  margin-top: 44px;
}

.dataset-streams {
  position: relative;
  min-height: 470px;
}

.dataset-track {
  position: relative;
  box-sizing: border-box;
  min-height: 150px;
  margin-bottom: 22px;
  padding: 18px 26px;
  border: 4px solid rgba(32, 40, 45, 0.92);
  border-radius: 8px;
  background: #fbf7ef;
  box-shadow: 0 14px 24px rgba(20, 31, 43, 0.08);
}

.dataset-track>span {
  position: absolute;
  right: 22px;
  top: 8px;
  display: grid;
  place-items: center;
  min-width: 70px;
  height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: white;
  background: #b89455;
  font-size: 22px;
  font-weight: 900;
}

.music-track {
  display: flex;
  align-items: center;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent 44%),
    linear-gradient(135deg, #211b13 0%, #3a2a17 100%);
}

.music-track>span {
  background: #c6842f;
}

.dataset-wave {
  display: flex;
  align-items: center;
  gap: 9px;
  height: 70px;
}

.dataset-wave i {
  width: 10px;
  height: 28px;
  border-radius: 999px;
  background: #f1b56d;
}

.dataset-wave i:nth-child(2n) {
  height: 50px;
  opacity: 0.72;
}

.dataset-wave i:nth-child(3n) {
  height: 62px;
  opacity: 0.9;
}

.dataset-wave i:nth-child(5n) {
  height: 38px;
}

.motion-track {
  background: #f7f2e9;
}

.motion-track>span {
  background: linear-gradient(90deg, #a9dca7 0%, #c8eac6 42%, #c9b7ff 100%);
}

.dataset-renders {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
}

.dataset-renders img {
  display: block;
  width: 100%;
  height: 118px;
  object-fit: contain;
  filter: drop-shadow(0 10px 14px rgba(20, 31, 43, 0.12));
  transform: translateY(10px);
}

.dataset-window {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  padding: 0;
}

.dataset-window span {
  display: grid;
  place-items: center;
  height: 56px;
  border-radius: 8px;
  color: #fffaf0;
  background: #b89455;
  font-size: 20px;
  font-weight: 900;
}

.dataset-window span:nth-child(2) {
  background: #c6842f;
}

.dataset-window span:nth-child(3) {
  background: #c76f4d;
}

.dataset-notes {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: 18px;
  height: 322px;
}

.dataset-notes article {
  box-sizing: border-box;
  padding: 22px 24px;
  border-left: 8px solid #b89455;
  border-radius: 0 8px 8px 0;
  background: #fbf7ef;
  box-shadow: 0 12px 24px rgba(20, 31, 43, 0.08);
}

.dataset-notes article:nth-child(2) {
  border-left-color: #c6842f;
}

.dataset-notes article:nth-child(3) {
  border-left-color: #c76f4d;
}

.dataset-notes p {
  margin: 0;
  color: var(--muted);
  font-size: 22px;
}

.reveal .dataset-citation {
  position: absolute;
  left: 36px;
  right: auto;
  bottom: 18px;
  margin: 0;
  color: rgba(22, 32, 42, 0.58);
  max-width: calc(100% - 72px);
  overflow: hidden;
  font-size: 13px;
  line-height: 1.1;
  text-align: left;
  white-space: nowrap;
}

.inference-board {
  position: relative;
  height: 560px;
  margin-top: -6px;
  transform-origin: left center;
  transition: transform 360ms ease;
}

.inference-slide.inference-zoomed .inference-board {
  transform: translateX(-30px) scale(0.58);
}

.inference-zoom-trigger {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

.inference-chain {
  position: absolute;
  left: 40px;
  top: 114px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.inference-state-card {
  position: relative;
  display: grid;
  place-items: center;
  width: 244px;
  height: 152px;
}

.inference-state-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 10px 14px rgba(20, 31, 43, 0.12));
}

.inference-state-card span {
  position: absolute;
  left: 50%;
  bottom: -8px;
  display: grid;
  place-items: center;
  width: 96px;
  height: 42px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(90deg, #6fa979, #8bc88d);
  box-shadow: 0 8px 16px rgba(20, 31, 43, 0.16);
  font-size: 30px;
  font-weight: 900;
  transform: translateX(-50%);
}

.inference-actions {
  position: absolute;
  inset: 0;
}

.inference-action {
  position: absolute;
  display: grid;
  place-items: center;
  width: 124px;
  height: 82px;
  border: 4px solid rgba(32, 40, 45, 0.9);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent 44%),
    linear-gradient(135deg, #211b13 0%, #3a2a17 100%);
  box-shadow: 0 12px 22px rgba(77, 50, 16, 0.2);
}

.inference-action .music-action-icon {
  left: 14px;
  top: 8px;
}

.inference-action span {
  position: absolute;
  left: 50%;
  bottom: -34px;
  display: grid;
  place-items: center;
  min-width: 62px;
  height: 39px;
  padding: 0 11px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(90deg, #c6842f, #f1b56d);
  box-shadow: 0 8px 16px rgba(20, 31, 43, 0.16);
  font-size: 30px;
  font-weight: 900;
  transform: translate(-50%, -13px);
}

.action-one {
  left: 647px;
  top: 23px;
}

.action-one::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -20px;
  width: 18px;
  height: 18px;
  background: #20282d;
  clip-path: polygon(50% 100%, 0 0, 100% 0);
  transform: translateX(-50%);
}

.action-one span {
  top: -34px;
  bottom: auto;
}

.inference-chain .eb-encoder {
  flex: 0 0 auto;
}

.inference-chain .eb-predictor {
  flex: 0 0 auto;
}

.inference-decoder {
  position: absolute;
  left: 788px;
  top: 220px;
  right: auto;
  display: grid;
  justify-items: center;
  align-items: center;
  gap: 4px;
}

.inference-duplicate {
  position: absolute;
  left: 960px;
  top: 0;
  width: 1060px;
  height: 420px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 360ms ease;
}

.inference-slide.inference-zoomed .inference-duplicate:not(.duplicate-third) {
  opacity: 1;
}

.duplicate-third {
  left: 1300px;
  opacity: 0;
  transition: opacity 360ms ease;
}

.inference-slide.inference-zoomed .duplicate-third {
  opacity: 1;
}

.rollout-ellipsis {
  position: absolute;
  left: 1740px;
  top: 118px;
  color: var(--ink);
  font-size: 112px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 360ms ease;
}

.inference-slide.inference-zoomed .rollout-ellipsis {
  opacity: 1;
}

.duplicate-chain {
  position: absolute;
  left: 20px;
  top: 134px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.duplicate-chain .eb-encoder,
.duplicate-chain .eb-predictor {
  flex: 0 0 auto;
}

.duplicate-action {
  left: 20px;
  top: 23px;
}

.duplicate-action::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -20px;
  width: 18px;
  height: 18px;
  background: #20282d;
  clip-path: polygon(50% 100%, 0 0, 100% 0);
  transform: translateX(-50%);
}

.duplicate-action span {
  top: -34px;
  bottom: auto;
}

.duplicate-decoder-arrow {
  position: absolute;
  left: 0px;
  top: 186px;
  width: 17px;
  height: 4px;
  background: #20282d;
}

.duplicate-decoder-arrow::after {
  content: "";
  position: absolute;
  right: -10px;
  top: 50%;
  width: 18px;
  height: 18px;
  background: #20282d;
  clip-path: polygon(100% 50%, 0 0, 0 100%);
  transform: translateY(-50%);
}

.duplicate-decoder {
  position: absolute;
  left: 163px;
  top: 220px;
  right: auto;
  display: grid;
  justify-items: center;
  align-items: center;
  gap: 4px;
}

.decoder-block {
  position: relative;
  display: grid;
  place-items: center;
  width: 76px;
  height: 112px;
  color: #fffaf0;
  background: #203845;
  clip-path: polygon(0 18%, 100% 0, 100% 100%, 0 82%);
  box-shadow: 0 12px 22px rgba(77, 50, 16, 0.18);
  font-size: 34px;
  font-weight: 900;
  transform: rotate(90deg);
}

.decoder-block::before {
  content: "";
  position: absolute;
  inset: 4px;
  background: #c76f4d;
  clip-path: inherit;
  pointer-events: none;
  z-index: 0;
}

.decoder-block mjx-container {
  position: relative;
  z-index: 1;
  transform: rotate(-90deg);
}

.decoder-output {
  position: relative;
  width: 218px;
  height: 120px;
  margin-top: 2px;
}

.decoder-output img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 10px 14px rgba(20, 31, 43, 0.12));
  transform: translateY(-30%) scale(1.38);
  transform-origin: center center;
}

.decoder-output span {
  position: absolute;
  left: 50%;
  bottom: -34px;
  display: grid;
  place-items: center;
  width: 104px;
  height: 42px;
  padding: 0;
  border-radius: 999px;
  color: white;
  background: #8e7ae6;
  font-size: 30px;
  font-weight: 900;
  transform: translateX(-50%);
}

.baseline-layout {
  display: grid;
  grid-template-columns: 470px 1fr;
  gap: 38px;
  align-items: center;
  margin-top: 40px;
}

.edge-panel {
  box-sizing: border-box;
  padding: 22px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.edge-panel img {
  display: block;
  width: 100%;
  margin-bottom: 22px;
}

.edge-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 21px;
}

.method-stack {
  display: grid;
  gap: 18px;
}

.method-row {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 20px;
  align-items: center;
  box-sizing: border-box;
  min-height: 122px;
  padding: 22px 26px;
  border-left: 8px solid var(--blue);
  background: var(--soft-blue);
}

.method-row strong {
  font-size: 28px;
  line-height: 1.08;
}

.method-row span {
  color: var(--muted);
  font-size: 22px;
}

.method-row:nth-child(2) {
  border-left-color: var(--coral);
  background: var(--soft-coral);
}

.method-row.proposed {
  border-left-color: var(--teal);
  background: var(--soft-teal);
}

.world-stage {
  position: relative;
  display: grid;
  grid-template-columns: 260px 270px 160px 300px;
  gap: 30px;
  align-items: center;
  height: 500px;
  margin-top: 18px;
}

.state-block,
.action-block {
  display: grid;
  justify-items: center;
  align-content: center;
  box-sizing: border-box;
  height: 330px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 18px 34px rgba(20, 31, 43, 0.08);
}

.state-block.future {
  border-color: rgba(31, 159, 139, 0.42);
  background: var(--soft-teal);
}

.state-block span,
.action-block span {
  margin-top: 16px;
  font-size: 28px;
  font-weight: 800;
}

.state-block em,
.action-block em {
  width: 80%;
  color: var(--muted);
  font-size: 19px;
  font-style: normal;
  text-align: center;
}

.skeleton,
.mini-skeleton {
  width: 128px;
  height: 184px;
  overflow: visible;
}

.skeleton line,
.skeleton circle,
.mini-skeleton line,
.mini-skeleton circle,
.pose-frames line,
.pose-frames circle {
  fill: white;
  stroke: var(--ink);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.state-block.future .skeleton {
  transform: rotate(-6deg) translateX(4px);
}

.music-token {
  width: 188px;
  padding: 28px 24px;
  border-radius: 8px;
  background: #101820;
}

.transition-arrow {
  position: relative;
  display: grid;
  place-items: center;
  height: 78px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(90deg, var(--purple), var(--teal));
  font-size: 25px;
  font-weight: 800;
}

.transition-arrow::after {
  content: "";
  position: absolute;
  right: -28px;
  border: 18px solid transparent;
  border-left-color: var(--teal);
}

.equation-strip {
  position: absolute;
  left: 86px;
  right: 86px;
  bottom: 46px;
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 18px 24px;
  border-left: 8px solid var(--purple);
  background: var(--soft-purple);
}

.equation-strip strong,
.equation-strip span {
  font-size: 28px;
}

.jepa-stage {
  position: relative;
  height: 560px;
  margin-top: 10px;
}

.encoder-box,
.predictor-box,
.target-box {
  position: absolute;
  box-sizing: border-box;
  width: 210px;
  min-height: 172px;
  padding: 18px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 16px 32px rgba(20, 31, 43, 0.08);
  text-align: center;
}

.encoder-box h3,
.predictor-box h3,
.target-box h3 {
  font-size: 23px;
}

.encoder-box p,
.predictor-box p,
.target-box p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.state-encoder {
  left: 40px;
  top: 78px;
}

.music-encoder {
  left: 40px;
  top: 294px;
  background: var(--soft-blue);
}

.predictor-box {
  left: 455px;
  top: 178px;
  width: 240px;
  background: var(--soft-purple);
}

.target-box {
  right: 42px;
  top: 140px;
  width: 240px;
  background: var(--soft-teal);
}

.target-pose {
  transform: rotate(-6deg);
}

.token-cloud {
  display: grid;
  grid-template-columns: repeat(4, 24px);
  gap: 9px;
  justify-content: center;
  margin: 4px 0 18px;
}

.token-cloud i {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  background: var(--purple);
}

.token-cloud i:nth-child(2n) {
  background: var(--teal);
}

.token-cloud i:nth-child(3n) {
  background: var(--coral);
}

.jepa-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.jepa-lines .line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 4;
  stroke-linecap: round;
  marker-end: url("#arrow-head");
}

.jepa-lines .loss-line {
  stroke: var(--coral);
  stroke-dasharray: 10 10;
}

.loss-chip {
  position: absolute;
  left: 520px;
  top: 96px;
  padding: 12px 18px;
  border-radius: 999px;
  color: white;
  background: var(--coral);
  font-size: 22px;
  font-weight: 800;
}

.training-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: center;
  margin-top: 42px;
}

.clip-window {
  position: relative;
  box-sizing: border-box;
  min-height: 500px;
  padding: 30px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.clip-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 20px;
  align-items: center;
  margin-bottom: 42px;
}

.clip-row>span {
  font-size: 24px;
  font-weight: 800;
  color: var(--muted);
}

.timeline-bars {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 10px;
}

.timeline-bars i {
  height: 72px;
  border-radius: 6px;
  background: #d9e0ea;
}

.timeline-bars i.active {
  background: linear-gradient(180deg, var(--purple), var(--teal));
}

.pose-frames {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.pose-frames svg {
  box-sizing: border-box;
  width: 100%;
  height: 210px;
  padding: 12px 18px;
  border-radius: 8px;
  background: white;
}

.pose-frames svg:nth-child(2) {
  transform: rotate(2deg);
}

.pose-frames svg:nth-child(3) {
  transform: rotate(-3deg);
}

.pose-frames svg:nth-child(4) {
  transform: rotate(5deg);
}

.window-brace {
  position: absolute;
  left: 154px;
  right: 30px;
  bottom: 30px;
  padding: 16px;
  border-top: 5px solid var(--teal);
  color: var(--teal);
  font-size: 26px;
  font-weight: 800;
  text-align: center;
}

.objective-panel {
  box-sizing: border-box;
  padding: 28px;
  border-left: 8px solid var(--coral);
  background: var(--soft-coral);
}

.objective-panel p {
  margin: 0 0 22px;
  color: var(--muted);
}

.objective-panel ul {
  margin: 0;
  padding-left: 26px;
}

.objective-panel li {
  margin-bottom: 10px;
}

.reference-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 18px;
}

.reference-strip img {
  display: block;
  width: 100%;
  height: 74px;
  object-fit: cover;
  object-position: center;
  border: 2px solid rgba(22, 32, 42, 0.12);
  border-radius: 6px;
  background: white;
}

.results-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: center;
  margin-top: 36px;
}

.qual-video {
  position: relative;
  overflow: hidden;
  height: 470px;
  border-radius: 8px;
  background: #101820;
  box-shadow: 0 18px 38px rgba(20, 31, 43, 0.18);
}

.qual-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.qual-video span {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 10px 14px;
  border-radius: 6px;
  color: white;
  background: rgba(10, 16, 22, 0.74);
  font-size: 19px;
  font-weight: 800;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.metric-card {
  box-sizing: border-box;
  min-height: 206px;
  padding: 24px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: white;
  text-align: center;
  box-shadow: 0 16px 30px rgba(20, 31, 43, 0.08);
}

.metric-card span,
.metric-card em {
  display: block;
  color: var(--muted);
  font-size: 19px;
  font-style: normal;
}

.metric-card strong {
  display: block;
  margin: 18px 0 12px;
  color: var(--coral);
  font-size: 42px;
  font-weight: 900;
}

.comparison-table {
  width: 100%;
  margin-top: 44px;
  border-collapse: collapse;
  font-size: 22px;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 20px;
  border-bottom: 2px solid var(--line);
  vertical-align: top;
}

.comparison-table th {
  color: white;
  background: var(--ink);
  font-size: 20px;
  text-align: left;
}

.comparison-table td:first-child {
  font-weight: 800;
}

.comparison-table tbody tr:nth-child(2) {
  background: var(--soft-coral);
}

.comparison-table tbody tr:nth-child(3) {
  background: var(--soft-teal);
}

.final-takeaway {
  margin: 34px auto 0;
  width: min(980px, 92%);
  padding: 18px 24px;
  border-left: 8px solid var(--teal);
  background: var(--soft-teal);
  font-size: 30px;
  font-weight: 800;
}

.fragment {
  transition: opacity 320ms ease, transform 360ms ease;
}

.reveal .slides section .fragment:not(.visible) {
  opacity: 0;
  transform: translateY(14px);
}

.world-model.step-0 .future,
.world-model.step-0 .transition-arrow,
.world-model.step-0 .equation-strip {
  opacity: 0;
}

.music-jepa.step-0 .jepa-lines .music-line,
.music-jepa.step-0 .jepa-lines .pred-line,
.music-jepa.step-0 .jepa-lines .loss-line {
  opacity: 0;
}

.music-jepa.step-1 .jepa-lines .pred-line,
.music-jepa.step-1 .jepa-lines .loss-line {
  opacity: 0;
}

.music-jepa.step-2 .jepa-lines .loss-line {
  opacity: 0;
}

.skeleton-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* Vertical latent JEPA slide with AIST++ SMPL render chunks. */
.vertical-eb-board {
  height: 560px;
  margin-top: 8px;
  padding: 0;
}

.current-motion-renders,
.future-motion-renders {
  position: absolute;
  width: 440px;
  height: 170px;
  display: grid;
  place-items: center;
}

.current-motion-renders {
  left: 48px;
  top: -12px;
}

.future-motion-renders {
  right: 10px;
  top: -12px;
}

.current-motion-renders img,
.future-motion-renders img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 16px 20px rgba(20, 31, 43, 0.12));
}

.latent-flow-canvas {
  position: absolute;
  left: 28px;
  top: 136px;
  width: 840px;
  height: 424px;
}

.render-down-arrow,
.encoder-to-latent,
.latent-to-predictor,
.predictor-to-next,
.future-render-down-arrow,
.future-encoder-to-latent {
  position: absolute;
  background: #20282d;
}

.render-down-arrow {
  left: 238px;
  top: 0;
  width: 5px;
  height: 34px;
}

.encoder-to-latent {
  left: 238px;
  top: 164px;
  width: 5px;
  height: 24px;
}

.latent-to-predictor {
  left: 238px;
  top: 254px;
  width: 5px;
  height: 22px;
}

.predictor-to-next {
  left: 238px;
  top: 342px;
  width: 5px;
  height: 22px;
}

.future-render-down-arrow {
  left: 656px;
  top: 0;
  width: 5px;
  height: 34px;
}

.future-encoder-to-latent {
  left: 656px;
  top: 164px;
  width: 5px;
  height: 24px;
}

.render-down-arrow::after,
.encoder-to-latent::after,
.latent-to-predictor::after,
.predictor-to-next::after,
.future-render-down-arrow::after,
.future-encoder-to-latent::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -10px;
  border: 10px solid transparent;
  border-top-color: #20282d;
  transform: translateX(-50%);
}

.schema-encoder {
  position: absolute;
  width: 130px;
  height: 132px;
  display: grid;
  place-items: center;
  color: white;
  background: #2f7894;
  border: 3px solid #20282d;
  box-sizing: border-box;
  box-shadow: 0 14px 24px rgba(20, 31, 43, 0.11);
}

.current-encoder {
  left: 176px;
  top: 36px;
}

.target-encoder {
  left: 594px;
  top: 36px;
  background: #2a9d8f;
}

.rotated-encoder {
  clip-path: polygon(0 10%, 82% 0, 100% 90%, 18% 100%);
  transform: none;
}

.schema-encoder span,
.predictor-node span {
  display: block;
  font-size: 16px;
  line-height: 1;
  font-weight: 900;
  text-transform: uppercase;
  opacity: 0.82;
}

.schema-encoder strong,
.predictor-node strong {
  display: block;
  margin-top: 6px;
  font-size: 34px;
  line-height: 1;
}

.latent-node {
  position: absolute;
  width: 128px;
  height: 64px;
  display: grid;
  place-items: center;
  color: white;
  background: #59636e;
  border: 3px solid #20282d;
  box-sizing: border-box;
  font-size: 30px;
  font-weight: 900;
}

.current-latent {
  left: 177px;
  top: 190px;
}

.next-latent {
  left: 177px;
  top: 366px;
  background: #3f76a8;
}

.target-latent {
  left: 595px;
  top: 190px;
  background: #3f76a8;
}

.predictor-node {
  position: absolute;
  left: 109px;
  top: 280px;
  width: 264px;
  height: 66px;
  display: grid;
  place-items: center;
  color: #143342;
  background: #86c9e6;
  border: 3px solid #20282d;
  box-sizing: border-box;
  font-weight: 900;
  text-align: center;
  box-shadow: 0 14px 24px rgba(20, 31, 43, 0.1);
}

.music-action-card {
  display: grid;
  justify-items: center;
  gap: 3px;
  width: 232px;
  padding: 7px 10px 10px;
  border: 3px solid #20282d;
  background: #fff7e3;
  box-shadow: 0 12px 22px rgba(20, 31, 43, 0.09);
}

.lateral-action {
  position: absolute;
  left: 332px;
  top: 72px;
}

.music-action-card svg {
  width: 212px;
  height: 60px;
}

.music-action-card .staff {
  fill: none;
  stroke: rgba(22, 32, 42, 0.24);
  stroke-width: 2;
}

.music-action-card .melody {
  fill: none;
  stroke: var(--coral);
  stroke-width: 5;
  stroke-linecap: round;
}

.music-action-card .notes circle {
  fill: var(--purple);
}

.music-action-card .notes path {
  fill: none;
  stroke: var(--purple);
  stroke-width: 4;
  stroke-linecap: round;
}

.music-action-card strong {
  color: var(--ink);
  font-size: 18px;
  line-height: 1;
}

.conditioning-arrow {
  position: absolute;
  left: 350px;
  top: 186px;
  width: 112px;
  height: 126px;
  border-left: 5px solid #20282d;
  border-bottom: 5px solid #20282d;
  border-radius: 18px 0 0 0;
}

.conditioning-arrow::before {
  content: "";
  position: absolute;
  left: -20px;
  bottom: -12px;
  border: 10px solid transparent;
  border-right-color: #20282d;
}

.conditioning-arrow span {
  position: absolute;
  left: 18px;
  top: 50px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  transform: rotate(90deg);
  transform-origin: center;
}

.thank-you-slide {
  display: grid !important;
  place-items: center;
  min-height: 100%;
}

.thank-you-slide h2 {
  margin: 0;
  color: var(--ink);
  font-size: 118px;
  line-height: 1;
  font-weight: 900;
  text-align: center;
}