:root {
  color-scheme: light;
  --ink: #17151f;
  --muted: #666176;
  --line: rgba(122, 108, 158, .18);
  --soft: rgba(255,255,255,.64);
  --accent: #7c3aed;
  --accent-2: #06b6d4;
  --accent-3: #f43f8b;
  --teacher: #6b7280;
  --shadow: 0 22px 70px rgba(82, 56, 142, .15);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    linear-gradient(140deg, #fff6fb 0%, #f6f2ff 34%, #edf8ff 70%, #fff 100%);
  color: var(--ink);
  font: 14px/1.25 Figtree, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

a { color: inherit; }

.guide-toggle {
  position: fixed;
  opacity: 0;
  pointer-events: none;
}

.guide-button {
  position: fixed;
  z-index: 20;
  top: auto;
  bottom: 12px;
  right: 12px;
  padding: 8px 11px;
  border: 1px solid rgba(124,58,237,.25);
  border-radius: 999px;
  background: rgba(255,255,255,.78);
  color: var(--accent);
  box-shadow: 0 10px 30px rgba(82, 56, 142, .14);
  backdrop-filter: blur(16px);
  cursor: pointer;
  font-weight: 900;
}

.poster {
  position: relative;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  gap: 8px;
  width: min(100vw, 1600px);
  --poster-cols: 1.28fr 1.08fr 1.03fr;
  aspect-ratio: 3 / 2;
  min-height: 0;
  margin: 0 auto;
  padding: 12px;
  background:
    linear-gradient(112deg, rgba(244,63,139,.10), rgba(124,58,237,.08) 42%, rgba(6,182,212,.10)),
    rgba(255,255,255,.70);
  box-shadow: var(--shadow);
  overflow: hidden;
  overflow-wrap: anywhere;
}

.layout-guide {
  position: absolute;
  z-index: 4;
  inset: 12px;
  display: grid;
  grid-template-rows: 13fr 10fr 49fr 25fr;
  gap: 8px;
  pointer-events: none;
}

.guide-toggle:not(:checked) + .guide-button + .poster .layout-guide {
  display: none;
}

.guide-band {
  display: grid;
  align-items: stretch;
  border: 2px dashed rgba(124,58,237,.55);
  border-radius: 8px;
  background: rgba(124,58,237,.018);
  color: rgba(91,33,182,.72);
  font-size: 13px;
  font-weight: 950;
  text-transform: uppercase;
}

.guide-header,
.guide-tldr {
  place-items: start center;
  padding-top: 6px;
}

.guide-main {
  grid-template-columns: var(--poster-cols);
  gap: 8px;
}

.guide-bottom {
  grid-template-columns: calc((100% - 8px) * .696) calc((100% - 8px) * .304);
  gap: 8px;
}

.guide-main span,
.guide-bottom span {
  display: grid;
  place-items: start center;
  padding-top: 6px;
  border-left: 2px solid rgba(6,182,212,.55);
  border-right: 2px solid rgba(6,182,212,.55);
  background: rgba(6,182,212,.012);
}

.guide-main span:first-child,
.guide-bottom span:first-child {
  border-left: 0;
}

.guide-main span:last-child,
.guide-bottom span:last-child {
  border-right: 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 12px;
  align-items: center;
  padding-bottom: 7px;
  border-bottom: 1px solid rgba(23,21,31,.18);
}

.eyebrow {
  margin: 0 0 3px;
  color: #7c3aed;
  font-size: clamp(11px, .8vw, 13px);
  font-weight: 850;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: "Bricolage Grotesque", Figtree, sans-serif;
  font-size: clamp(42px, 4vw, 64px);
  line-height: .82;
  letter-spacing: 0;
  color: #241b35;
}

.pi-symbol {
  font-family: Arial, "Helvetica Neue", "Segoe UI Symbol", sans-serif;
  font-weight: 800;
}

h1 .pi-symbol {
  color: inherit;
  -webkit-text-fill-color: currentColor;
}

h2 .pi-symbol,
.call .pi-symbol {
  color: inherit;
  -webkit-text-fill-color: currentColor;
  background: none;
}

.subtitle {
  margin: 4px 0 0;
  font-family: "Bricolage Grotesque", Figtree, sans-serif;
  font-size: clamp(18px, 1.45vw, 23px);
  font-weight: 700;
  white-space: nowrap;
}

.authors {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: clamp(13px, .95vw, 16px);
  font-weight: 650;
}

.note {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: clamp(11px, .82vw, 13px);
  font-weight: 650;
}

sup {
  color: var(--accent);
  font-size: .72em;
  font-weight: 850;
  vertical-align: super;
}

.header-visual {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px;
  gap: 8px;
  align-items: center;
}

.deployment-hero {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 10px;
  align-items: end;
  margin: 0;
  height: 122px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.deployment-hero > img,
.device-tile {
  width: 100%;
  height: 100%;
}

.deployment-hero img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 0;
  background: transparent;
}

.device-tile {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  place-items: center;
  padding: 8px;
  border: 1.5px solid rgba(124,58,237,.22);
  border-radius: 8px;
  background: rgba(255,255,255,.50);
  box-shadow: 0 12px 30px rgba(82, 56, 142, .10);
  backdrop-filter: blur(12px);
}

.device-pair {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr;
  gap: 8px;
}

.device-pair span {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  place-items: center;
  min-width: 0;
}

.device-tile img {
  min-height: 0;
}

.device-tile b {
  color: var(--accent);
  font-size: 11px;
  line-height: 1;
  font-weight: 950;
}

.hero-side {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  align-items: stretch;
}

.hero-side a {
  display: grid;
  gap: 5px;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.72);
  color: var(--accent);
  font-weight: 900;
  text-decoration: none;
  padding: 5px;
  min-width: 88px;
}

.qr-link img {
  display: block;
  width: min(100%, 82px);
  aspect-ratio: 1;
  object-fit: contain;
  image-rendering: pixelated;
}

.qr-link span {
  font-size: 12px;
  white-space: nowrap;
}

.tldr {
  margin: 0;
  padding: 7px 12px;
  border-radius: 8px;
  border: 1px solid rgba(124,58,237,.18);
  background:
    linear-gradient(120deg, rgba(255,255,255,.62), rgba(255,255,255,.38)),
    linear-gradient(120deg, rgba(124,58,237,.14), rgba(6,182,212,.14));
  color: #211936;
  box-shadow: 0 16px 45px rgba(82, 56, 142, .12);
  backdrop-filter: blur(18px);
}

.tldr p {
  margin: 0;
  font-size: clamp(15px, 1.18vw, 19px);
  text-align: center;
}

.big-numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 9px;
  margin: 5px 0 3px;
}

.big-numbers div {
  display: grid;
  align-content: center;
  gap: 3px;
  padding: 6px 9px;
  border: 1px solid rgba(124,58,237,.18);
  border-radius: 8px;
  background: rgba(255,255,255,.42);
  backdrop-filter: blur(12px);
  text-align: center;
}

.big-numbers strong {
  display: block;
  font-family: "Bricolage Grotesque", Figtree, sans-serif;
  background: linear-gradient(90deg, #7c3aed, #2563eb 52%, #06b6d4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(24px, 2.2vw, 36px);
  line-height: 1;
}

.big-numbers div:last-child strong {
  font-size: clamp(18px, 1.5vw, 25px);
  line-height: 1;
}

.big-numbers div:last-child {
  border-color: rgba(124,58,237,.18);
  background: rgba(255,255,255,.42);
}

.big-numbers div:last-child strong {
  background: linear-gradient(90deg, #7c3aed, #2563eb 52%, #06b6d4);
  -webkit-background-clip: text;
  background-clip: text;
}

.big-numbers span,
.one-line {
  color: #4f4863;
  font-size: clamp(11px, .75vw, 12px);
  font-weight: 850;
  text-transform: uppercase;
  line-height: 1.05;
}

.content-grid {
  display: grid;
  grid-template-columns: var(--poster-cols);
  grid-template-rows: 355px minmax(0, 1fr);
  gap: 8px;
  align-items: stretch;
  min-height: 0;
}

.content-grid > .panel {
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.motivation { grid-row: 1 / span 2; }
.method { grid-column: 2; grid-row: 1 / span 2; }
.results { grid-column: 3; grid-row: 1; }
.robots { grid-column: 2; grid-row: 2; }
.takeaway { grid-column: 3; grid-row: 2; }

.takeaway {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
}

.panel {
  min-width: 0;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.70);
  box-shadow: 0 18px 55px rgba(82, 56, 142, .10);
  backdrop-filter: blur(14px);
}

h2 {
  margin: 0 0 6px;
  color: #241b35;
  font-family: "Bricolage Grotesque", Figtree, sans-serif;
  font-size: clamp(14px, 1vw, 18px);
  line-height: 1;
  text-transform: none;
}

h3 {
  margin: 6px 0 4px;
  font-family: "Bricolage Grotesque", Figtree, sans-serif;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(12px, .85vw, 15px);
  line-height: 1.1;
}

p { margin: 0 0 8px; }

.equation {
  display: grid;
  place-items: center;
  min-height: 44px;
  padding: 6px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(124,58,237,.09), rgba(6,182,212,.08));
  font-size: clamp(16px, 1.1vw, 20px);
  font-weight: 900;
}

.equation-html {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  line-height: 1;
}

.equation-html span,
.equation-html b {
  white-space: nowrap;
}

.depth-term {
  padding: 5px 9px 6px;
  border: 2px solid rgba(124,58,237,.62);
  border-radius: 8px;
  background: rgba(124,58,237,.12);
  color: #5b21b6;
  box-shadow: 0 8px 22px rgba(124,58,237,.12);
}

.term-list {
  display: grid;
  gap: 4px;
  margin: 6px 0;
}

.term-list div {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 7px;
  align-items: start;
  padding: 5px 7px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.68);
}

.term-list b {
  color: #241b35;
  white-space: nowrap;
}

.term-list span {
  color: var(--muted);
  font-weight: 700;
  line-height: 1.12;
}

.term-list .depth {
  border-color: rgba(124,58,237,.32);
  background: linear-gradient(120deg, rgba(124,58,237,.10), rgba(6,182,212,.08));
}

.compare-list div {
  padding: 5px 7px;
  border-radius: 8px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
}

.compare-list b,
.compare-list span {
  display: block;
}

.compare-list span,
.caption {
  color: var(--muted);
  font-weight: 650;
  line-height: 1.12;
}

.compare-list {
  display: grid;
  gap: 4px;
}

.compare-list .call {
  border-color: rgba(79,70,229,.35);
  background: linear-gradient(120deg, rgba(124,58,237,.10), rgba(6,182,212,.10));
}

.figure-card {
  margin: 6px 0 8px;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.76);
}

.figure-card img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.motivation-figures {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 6px;
  align-items: stretch;
}

.motivation-figures .figure-card {
  display: grid;
  grid-template-rows: 1fr auto;
  margin: 3px 0 7px;
}

.previous-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.previous-figures .figure-card {
  display: grid;
  grid-template-rows: 1fr auto;
  margin: 3px 0 7px;
}

.motivation .figure-card img {
  max-height: 120px;
}

.motivation .motivation-figures .figure-card:first-child img {
  max-height: 140px;
}

.motivation .layer-selection img {
  max-height: 112px;
}

.motivation .skip-success img {
  max-height: 112px;
}

.motivation .scope-figure img {
  max-height: 105px;
  padding: 4px;
}

.motivation .figure-card figcaption {
  font-size: 10.5px;
  line-height: 1.1;
}

.figure-card figcaption {
  padding: 6px;
  color: var(--muted);
  font-weight: 750;
}

.main-diagram img {
  padding: 6px;
  max-height: 205px;
}

.small-thumb img {
  max-height: 125px;
  object-fit: cover;
}

.steps {
  display: grid;
  gap: 6px;
  margin-top: 7px;
}

.steps p {
  margin: 0;
  padding: 8px;
  border-left: 5px solid var(--accent);
  background: rgba(255,255,255,.72);
  border-radius: 0 8px 8px 0;
}

.steps .loss {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  font-weight: 750;
  color: #241b35;
}

code {
  white-space: nowrap;
  color: #24304f;
  font-weight: 800;
}

.thats-it {
  display: grid;
  gap: 3px;
  margin-top: 7px;
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid rgba(124,58,237,.18);
  background:
    linear-gradient(120deg, rgba(255,255,255,.68), rgba(255,255,255,.42)),
    linear-gradient(120deg, rgba(124,58,237,.12), rgba(6,182,212,.10));
  color: #241b35;
  backdrop-filter: blur(16px);
}

.thats-it b {
  background: linear-gradient(90deg, #7c3aed, #06b6d4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(16px, 1.1vw, 20px);
}

.ablation-lead {
  margin: 8px 0 4px;
  color: #4f4863;
  font-size: 12px;
  font-weight: 750;
  line-height: 1.15;
}

.ablation-lead b {
  color: #241b35;
  font-weight: 950;
}

.ablation-tables {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1fr;
  gap: 8px;
  margin-top: 0;
}

.ablation-tables table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
  font-size: 10.5px;
  line-height: 1.08;
}

.ablation-tables caption {
  margin-bottom: 4px;
  color: #241b35;
  font-weight: 900;
  text-align: left;
}

.ablation-tables th,
.ablation-tables td {
  padding: 3px 4px;
  border-bottom: 1px solid rgba(36,27,53,.38);
  text-align: center;
  white-space: nowrap;
}

.ablation-tables th:first-child,
.ablation-tables td:first-child {
  text-align: left;
}

.ablation-tables thead th {
  border-top: 2px solid rgba(36,27,53,.72);
  font-weight: 950;
}

.ablation-tables tbody tr:last-child td {
  border-bottom: 2px solid rgba(36,27,53,.72);
}

.ablation-tables .best {
  background: rgba(124,58,237,.08);
  font-weight: 950;
}

.plot-lead {
  margin: 0 0 5px;
  color: #4f4863;
  font-size: 11.5px;
  font-weight: 700;
  line-height: 1.18;
}

.plot-lead b {
  color: #241b35;
  font-weight: 950;
}

.bubble-plot {
  margin: 0;
}

.bubble-plot svg {
  display: block;
  width: 100%;
  height: 225px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(255,255,255,.34), rgba(224,242,254,.28));
}

.bubble-plot figcaption {
  margin-top: 4px;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 750;
  line-height: 1.15;
}

.gridlines path {
  fill: none;
  stroke: rgba(36,27,53,.10);
  stroke-width: 1;
}

.axis {
  fill: none;
  stroke: rgba(36,27,53,.72);
  stroke-width: 1.7;
}

.ticks text,
.axis-label,
.bubbles text {
  font-family: Figtree, ui-sans-serif, system-ui, sans-serif;
}

.ticks text {
  fill: #5b556b;
  font-size: 10px;
  font-weight: 800;
  text-anchor: middle;
}

.ticks.y text {
  text-anchor: end;
}

.ticks.x text {
  font-size: 12px;
  font-weight: 950;
}

.axis-label {
  fill: #241b35;
  font-size: 12px;
  font-weight: 900;
  text-anchor: middle;
}

.x-label {
  font-size: 14px;
}

.bubbles circle {
  stroke: rgba(255,255,255,.9);
  stroke-width: 2;
  opacity: .92;
}

.bubbles text {
  fill: #241b35;
  font-size: 10.5px;
  font-weight: 900;
}

.baseline { fill: #64748b; }
.token { fill: #06b6d4; }
.small { fill: #f43f5e; }
.ours { fill: #7c3aed; }

.plot-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  margin-top: 5px;
  color: #4f4863;
  font-size: 10px;
  font-weight: 850;
}

.plot-legend span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.plot-legend i {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  box-shadow: 0 0 0 1px rgba(255,255,255,.9);
}

.plot-legend i.baseline { background: #64748b; }
.plot-legend i.token { background: #06b6d4; }
.plot-legend i.small { background: #f43f5e; }
.plot-legend i.ours { background: #7c3aed; }

.robot-lead {
  margin: 0 0 7px;
  color: #4f4863;
  font-size: 12.5px;
  font-weight: 750;
  line-height: 1.15;
}

.robot-lead b {
  color: #241b35;
  font-weight: 950;
}

.robot-lead .robot-highlight {
  background: linear-gradient(90deg, #7c3aed, #06b6d4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hardware-figure {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  min-height: 0;
  margin: 0;
  background: rgba(255,255,255,.56);
}

.hardware-figure img {
  height: 100%;
  min-height: 0;
  aspect-ratio: auto;
  object-fit: contain;
  background: transparent;
}

.hardware-figure figcaption {
  background: rgba(255,255,255,.48);
}

.result-chips {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
}

.result-chips.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.result-chips div {
  min-height: 66px;
  padding: 9px;
  border: 1px solid rgba(124,58,237,.18);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(124,58,237,.10), rgba(6,182,212,.10));
}

.result-chips b {
  display: block;
  font-family: "Bricolage Grotesque", Figtree, sans-serif;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: clamp(18px, 1.45vw, 25px);
  line-height: 1;
}

.result-chips span,
.metric-row span {
  color: var(--muted);
  font-weight: 850;
}

.metric-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  background: rgba(255,255,255,.68);
  border: 1px solid var(--line);
}

.metric-row b {
  color: var(--accent);
}

.robot-grid {
  display: grid;
  grid-template-columns: 1.25fr .95fr;
  gap: 9px;
  height: calc(100% - 24px);
}

figure {
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
}

figure img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

figcaption {
  display: grid;
  gap: 2px;
  padding: 6px;
  font-weight: 900;
}

figcaption span {
  color: var(--muted);
  font-size: clamp(11px, .8vw, 14px);
}

.robot-grid figure img {
  height: calc(100% - 48px);
  min-height: 125px;
  object-fit: contain;
  background: #fff;
}

.demo {
  display: none;
}

.generalize {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin-bottom: 8px;
}

.generalize b,
.generalize span {
  padding: 6px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  font-weight: 900;
}

.generalize span {
  color: var(--accent);
}

.takeaway p {
  font-size: clamp(12px, .9vw, 15px);
}

.tags {
  display: none;
}

.tags span {
  padding: 7px 10px;
  border-radius: 999px;
  background: #e7f9f7;
  color: #096b6b;
  font-weight: 950;
}

@media (max-width: 980px) {
  .guide-button,
  .layout-guide {
    display: none;
  }

  .poster {
    width: 100%;
    aspect-ratio: auto;
    min-height: 0;
    padding: 18px;
    overflow: visible;
  }

  h1 {
    font-size: clamp(48px, 15vw, 72px);
  }

  .subtitle {
    font-size: clamp(20px, 6vw, 32px);
  }

  .authors span {
    display: block;
    margin-left: 0;
  }

  .hero,
  .grid,
  .bottom {
    grid-template-columns: 1fr;
  }

  .hero-side {
    grid-template-columns: 1fr 1fr;
  }

  .qr-link img {
    width: 92px;
  }

  .big-numbers,
  .result-chips,
  .result-chips.two,
  .robot-grid {
    grid-template-columns: 1fr;
  }

  .equation {
    font-size: 15px;
  }
}

@page {
  size: 72in 48in landscape;
  margin: 0;
}

@media print {
  .guide-button,
  .layout-guide {
    display: none;
  }

  body { background: #fff; }

  .poster {
    width: 72in;
    height: 48in;
    aspect-ratio: auto;
    margin: 0;
    box-shadow: none;
  }
}