:root {
  --datasetblue: #3c78c8;
  --encodergreen: #329650;
  --flamecolor: #dc370a;
  --bglight: #f5f6fc;
  --softgreen: #e8f6ed;
  --softcream: #fcf7e8;
  --softred: #fdeeea;
  --ink: #23232d;
  --muted: #4f5563;
  --linegray: #dce0e8;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --border: rgba(60, 88, 130, 0.14);
  --shadow: 0 24px 60px rgba(35, 35, 45, 0.1);
  --radius-lg: 28px;
  --radius-md: 18px;
  --max-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

main section[id] {
  scroll-margin-top: 108px;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(60, 120, 200, 0.18), transparent 32%),
    radial-gradient(circle at top right, rgba(50, 150, 80, 0.15), transparent 28%),
    linear-gradient(180deg, #fafbff 0%, #f5f6fc 54%, #eef2f9 100%);
  line-height: 1.6;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.page-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto 80px;
}

.site-header {
  position: relative;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin: 18px 0 24px;
  padding: 14px 20px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(245, 246, 252, 0.84);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 30px rgba(35, 35, 45, 0.08);
}

.site-mark {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-mark:hover,
.site-mark:focus-visible {
  color: var(--datasetblue);
}

.hero,
.content-section {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero {
  padding: 38px;
}

.hero-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.36fr) minmax(300px, 0.64fr);
  gap: 30px;
  align-items: end;
}

.hero-title-block,
.hero-meta-block {
  min-width: 0;
}

.hero-copy h1,
.section-heading h2,
.retrieval-header h3 {
  margin: 0;
  font-family: "Fraunces", Georgia, serif;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.hero-copy h1 {
  font-size: clamp(2.7rem, 5.6vw, 5.75rem);
  max-width: 15ch;
}

.hero-subtitle {
  max-width: 34ch;
  margin: 12px 0 0;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.35rem, 2.35vw, 2.05rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: rgba(35, 35, 45, 0.86);
}

.eyebrow,
.section-kicker,
.callout-label {
  margin: 0 0 12px;
  color: var(--datasetblue);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-summary {
  max-width: 68ch;
  margin: 22px 0 0;
  font-size: 1.14rem;
  line-height: 1.74;
  color: var(--muted);
}

.author-row,
.affiliation-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.author-row {
  margin-bottom: 14px;
  font-weight: 700;
}

.affiliation-list {
  flex-direction: column;
  color: var(--muted);
  font-size: 0.98rem;
}

.affiliation-list p {
  margin: 0;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}

.correspondence-line {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.correspondence-line a {
  color: var(--datasetblue);
  text-decoration: none;
  font-weight: 600;
}

.correspondence-line a:hover,
.correspondence-line a:focus-visible {
  text-decoration: underline;
}

.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.7rem;
  height: 2.7rem;
  border: 1px solid rgba(60, 120, 200, 0.18);
  border-radius: 999px;
  background: rgba(60, 120, 200, 0.08);
  color: var(--datasetblue);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.icon-link svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.75;
}

.icon-link:hover,
.icon-link:focus-visible {
  transform: translateY(-1px);
  background: rgba(60, 120, 200, 0.14);
  border-color: rgba(60, 120, 200, 0.28);
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions .button {
  flex: 1 1 13.5rem;
}

.hero-main-idea {
  margin-top: 28px;
  padding: 22px 26px;
  border: 1px solid rgba(60, 120, 200, 0.14);
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(60, 120, 200, 0.07), rgba(50, 150, 80, 0.07));
}

.hero-band-label,
.workflow-kicker {
  margin: 0 0 10px;
  color: var(--datasetblue);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-main-idea p:last-child {
  margin: 0;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.24;
}

.hero-workflow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.workflow-step {
  position: relative;
  min-height: 100%;
  padding: 24px 22px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.86);
}

.workflow-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: 16px;
  border-radius: 999px;
  background: rgba(60, 120, 200, 0.12);
  color: var(--datasetblue);
  font-weight: 700;
}

.workflow-step h2 {
  margin: 0;
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.22rem;
  line-height: 1.2;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--datasetblue) 0%, var(--encodergreen) 100%);
  box-shadow: 0 14px 30px rgba(60, 120, 200, 0.26);
}

.button-secondary {
  color: var(--datasetblue);
  background: rgba(60, 120, 200, 0.08);
  border-color: rgba(60, 120, 200, 0.18);
}

.button-disabled {
  pointer-events: none;
  cursor: not-allowed;
  color: rgba(79, 85, 99, 0.72);
  background: rgba(79, 85, 99, 0.08);
  border-color: rgba(79, 85, 99, 0.16);
}

.button-disabled:hover,
.button-disabled:focus-visible {
  transform: none;
}

.hero-figure .poster-svg {
  min-height: 410px;
}

.hero-figure {
  align-self: start;
  margin-top: 12px;
}

.hero-figure-mobile {
  display: none;
  margin: 0 0 18px;
  overflow: hidden;
}

.hero-figure .svg-label {
  font-size: 25px;
}

.hero-figure .svg-small {
  font-size: 21px;
}

.hero-figure .svg-caption {
  font-size: 17px;
}

.figure-card,
.text-card,
.feature-card,
.method-card,
.callout {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
}

.poster-figure {
  margin: 0;
  overflow: hidden;
}

.poster-figure figcaption,
.figure-card figcaption {
  padding: 18px 20px 20px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.62;
}

.figure-notes {
  display: grid;
  gap: 14px;
  padding: 0 20px 18px;
}

.figure-notes-split {
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 0.8fr);
  align-items: stretch;
}

.figure-note {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(60, 120, 200, 0.04), rgba(255, 255, 255, 0.98));
  padding: 16px 18px;
}

.figure-note-accent {
  background: linear-gradient(180deg, rgba(252, 247, 232, 0.98), rgba(255, 255, 255, 0.98));
}

.figure-note-title {
  margin: 0 0 8px;
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ink);
}

.figure-note p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

.figure-source {
  display: block;
  width: fit-content;
  margin-bottom: 8px;
  padding: 0.28rem 0.68rem;
  border-radius: 999px;
  background: rgba(50, 150, 80, 0.16);
  color: #21653a;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.content-section {
  margin-top: 24px;
  padding: 34px;
}

.content-section > .intro-grid + .callout,
.content-section > .intro-grid + .figure-card,
.content-section > .pretraining-block + .figure-card,
.content-section > .figure-card + .feature-grid,
.content-section > .method-grid + .intro-grid,
.content-section > .intro-grid + .figure-grid,
.content-section > .figure-grid,
.content-section > .method-grid,
.content-section > .callout {
  margin-top: 18px;
}

#summary {
  background:
    linear-gradient(180deg, rgba(60, 120, 200, 0.04), rgba(255, 255, 255, 0.94)),
    var(--surface);
}

#idea {
  background:
    linear-gradient(180deg, rgba(50, 150, 80, 0.045), rgba(255, 255, 255, 0.95)),
    var(--surface);
}

#results {
  background:
    linear-gradient(180deg, rgba(220, 55, 10, 0.04), rgba(255, 255, 255, 0.96)),
    var(--surface);
}

#method {
  background:
    linear-gradient(180deg, rgba(60, 120, 200, 0.03), rgba(50, 150, 80, 0.04)),
    var(--surface);
}

.section-heading {
  margin-bottom: 22px;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.75rem);
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.intro-grid .section-heading {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.text-card,
.feature-card,
.method-card,
.callout {
  padding: 26px;
}

.pretraining-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, rgba(60, 120, 200, 0.055), rgba(50, 150, 80, 0.045)),
    var(--surface-strong);
}

.pretraining-copy {
  max-width: 36rem;
}

.pretraining-copy h3 {
  margin: 0 0 14px;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.35rem, 2.2vw, 1.95rem);
  line-height: 1.16;
}

.pretraining-copy p {
  color: var(--muted);
  font-size: 1.03rem;
  line-height: 1.72;
}

.pretraining-copy .block-kicker {
  margin: 0 0 10px;
  color: var(--datasetblue);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.pretraining-figure {
  width: 100%;
  min-width: 0;
  margin: 0;
}

.pretraining-svg {
  display: block;
  min-height: 320px;
}

.pretraining-svg-desktop {
  margin-inline: auto;
}

.pretraining-svg-mobile {
  display: none;
}

.text-card h3,
.feature-card h3,
.method-card h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.3rem;
}

.text-card p,
.feature-card p,
.method-card p,
.callout p,
.retrieval-header p {
  font-size: 1.03rem;
  line-height: 1.76;
}

.classifier-head-equation {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: fit-content;
  max-width: 100%;
  margin: 18px 0;
  padding: 16px 18px;
  border: 1px solid rgba(60, 120, 200, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(245, 246, 252, 0.78);
  color: var(--ink);
}

@media (min-width: 1041px) {
  .pretraining-copy {
    max-width: none;
    width: 100%;
  }

  .pretraining-copy p {
    max-width: 72rem;
  }

  .classifier-head-equation {
    width: min(100%, 72rem);
  }
}

.head-equation-line {
  display: block;
  font-size: 1.16rem;
  line-height: 1.3;
}

.head-where-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
}

.classifier-head-equation code,
.classifier-head-equation span {
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

.classifier-head-equation code {
  color: var(--ink);
}

.matrix-definition {
  display: flex;
  align-items: center;
  gap: 8px;
}

.weight-matrix {
  position: relative;
  display: grid;
  gap: 2px;
  min-width: 5.2ch;
  padding: 4px 10px;
  text-align: center;
  line-height: 1.1;
}

.weight-matrix::before,
.weight-matrix::after {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 6px;
  content: "";
}

.weight-matrix::before {
  left: 0;
  border-top: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  border-left: 1.5px solid currentColor;
}

.weight-matrix::after {
  right: 0;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}

.text-card p:last-child,
.feature-card p:last-child,
.method-card p:last-child,
.callout p:last-child {
  margin-bottom: 0;
}

.feature-grid,
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid {
  margin-top: 18px;
}

.feature-card:nth-child(1) {
  background: linear-gradient(180deg, rgba(60, 120, 200, 0.08), #ffffff);
}

.feature-card:nth-child(2) {
  background: linear-gradient(180deg, rgba(50, 150, 80, 0.08), #ffffff);
}

.feature-card:nth-child(3) {
  background: linear-gradient(180deg, rgba(220, 55, 10, 0.08), #ffffff);
}

.feature-card p,
.text-card p,
.method-card p,
.callout p,
.figure-card figcaption,
.retrieval-header p {
  color: var(--muted);
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.figure-card {
  margin: 0;
  overflow: hidden;
}

.figure-card-wide {
  grid-column: 1 / -1;
}

.method-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 16px;
  border-radius: 999px;
  background: rgba(220, 55, 10, 0.12);
  color: var(--flamecolor);
  font-weight: 700;
}

.method-card {
  border-top: 4px solid rgba(220, 55, 10, 0.42);
}

.callout {
  margin-top: 18px;
  background:
    linear-gradient(135deg, rgba(60, 120, 200, 0.08), rgba(50, 150, 80, 0.08)),
    var(--surface-strong);
}

.retrieval-card {
  padding: 22px;
}

.retrieval-header {
  margin-bottom: 18px;
}

.retrieval-header h3 {
  font-size: clamp(1.35rem, 2.2vw, 1.9rem);
}

.citation-section {
  margin-top: 22px;
}

.citation-note {
  max-width: 76ch;
  margin: 0 0 18px;
  color: var(--muted);
}

.bibtex-card {
  overflow: hidden;
  border: 1px solid rgba(60, 120, 200, 0.14);
  border-radius: var(--radius-md);
  background: #172033;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.bibtex-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px 12px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(246, 248, 255, 0.78);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.copy-citation-button {
  min-width: 4.7rem;
  padding: 0.48rem 0.78rem;
  border: 1px solid rgba(246, 248, 255, 0.18);
  border-radius: 999px;
  background: rgba(246, 248, 255, 0.08);
  color: #f6f8ff;
  font: inherit;
  letter-spacing: 0;
  text-transform: none;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.copy-citation-button:hover,
.copy-citation-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(246, 248, 255, 0.32);
  background: rgba(246, 248, 255, 0.14);
}

.bibtex-block {
  margin: 0;
  padding: 22px;
  overflow-x: auto;
  border: 0;
  background: transparent;
  color: #f6f8ff;
  font-size: 0.93rem;
  line-height: 1.55;
}

.bibtex-block code {
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

.retrieval-header p {
  margin: 10px 0 0;
}

.retrieval-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.mini-chart {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #ffffff;
  overflow: hidden;
}

.mini-chart-title {
  margin: 0;
  padding: 18px 20px 6px;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.12rem, 2vw, 1.35rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.retrieval-card.result-card .mini-chart .mini-chart-svg {
  display: block;
  min-height: 0;
}

.poster-svg {
  width: 100%;
  height: auto;
}

.chart-mobile {
  display: none;
}

.diagram-mobile {
  display: none;
}

.result-card .poster-svg {
  min-height: 380px;
}

.chart-svg {
  min-height: 400px;
}

.svg-surface {
  fill: #ffffff;
  stroke: var(--linegray);
  stroke-width: 1.4;
}

.svg-thumb {
  rx: 14;
  ry: 14;
}

.svg-label {
  fill: var(--ink);
  font-size: 24px;
  font-weight: 600;
}

.svg-label-strong {
  font-weight: 700;
}

.svg-small {
  fill: var(--ink);
  font-size: 20px;
  font-weight: 600;
}

.svg-caption {
  fill: var(--ink);
  font-size: 16px;
}

.svg-flow-label {
  fill: var(--ink);
  font-size: 18px;
  font-weight: 600;
}

.svg-wide-flow-label {
  fill: var(--ink);
  font-size: 20px;
  font-weight: 600;
}

.svg-vertical-ellipsis {
  fill: var(--muted);
}

.svg-text-muted {
  fill: var(--muted);
}

.svg-arrow {
  stroke: var(--ink);
  stroke-width: 2.2;
  fill: none;
}

.svg-arrow-both {
  stroke: var(--ink);
  stroke-width: 1.8;
  marker-start: url(#idea-arrow-start);
  marker-end: url(#idea-arrow);
}

.svg-overbar {
  stroke: var(--ink);
  stroke-width: 1.9;
  stroke-linecap: round;
}

.svg-encoder-fill {
  fill: rgba(50, 150, 80, 0.14);
}

.svg-encoder-stroke {
  fill: none;
  stroke: var(--encodergreen);
  stroke-width: 2.2;
}

.svg-module {
  fill: #ffffff;
  stroke: var(--ink);
  stroke-width: 2;
}

.svg-loss {
  fill: #ffffff;
  stroke: var(--ink);
  stroke-width: 1.6;
  stroke-dasharray: 4 4;
}

.svg-note {
  fill: var(--softcream);
  stroke: rgba(220, 55, 10, 0.25);
  stroke-width: 1.2;
}

.svg-snowflake line,
line.svg-snowflake {
  stroke: var(--datasetblue);
  stroke-width: 1.7;
  stroke-linecap: round;
}

.svg-guide {
  stroke: rgba(35, 35, 45, 0.22);
  stroke-width: 1.2;
}

.svg-brace {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.5;
}

.svg-grid line {
  stroke: rgba(220, 224, 232, 0.9);
  stroke-width: 1;
}

.svg-axis line {
  stroke: var(--ink);
  stroke-width: 1.6;
}

.svg-axis-labels text {
  fill: var(--muted);
  font-size: 16px;
}

.svg-line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.svg-line-blue {
  stroke: var(--datasetblue);
}

.svg-line-green {
  stroke: var(--encodergreen);
}

.svg-line-gold {
  stroke: #dc960a;
}

.svg-line-flame {
  stroke: var(--flamecolor);
}

.svg-dataset-text {
  fill: var(--datasetblue);
}

.svg-discard-arrow {
  stroke: #6f7280;
  stroke-width: 2.4;
  fill: none;
  stroke-linecap: round;
}

.svg-trash-body {
  fill: #6f7280;
}

.svg-trash-lid {
  fill: #5f6270;
}

.svg-trash-line {
  stroke: #ffffff;
  stroke-width: 2.2;
  stroke-linecap: round;
  opacity: 0.84;
}

.svg-dashed {
  stroke-dasharray: 8 6;
}

.svg-bar-base {
  fill: rgba(60, 120, 200, 0.62);
}

.svg-bar-add {
  fill: rgba(50, 150, 80, 0.82);
}

.svg-trainable-badge {
  fill: var(--flamecolor);
  stroke: rgba(128, 43, 16, 0.32);
  stroke-width: 1.1;
}

.svg-trainable-core {
  fill: #ffe5a0;
}

.svg-area {
  fill: rgba(60, 120, 200, 0.25);
}

.svg-chart-title {
  fill: var(--ink);
  font-family: "Fraunces", Georgia, serif;
  font-size: 26px;
  font-weight: 700;
}

.svg-math {
  fill: var(--ink);
  font-family: "Fraunces", Georgia, serif;
  font-size: 22px;
  font-style: italic;
  font-weight: 600;
}

.svg-legend text {
  fill: var(--muted);
  font-size: 18px;
}

@media (max-width: 1040px) {
  .hero,
  .intro-grid,
  .feature-grid,
  .figure-grid,
  .method-grid,
  .retrieval-grid,
  .hero-workflow,
  .pretraining-block,
  .figure-notes-split {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: 16ch;
  }

  .hero-subtitle,
  .hero-summary {
    max-width: none;
  }

  .hero-copy {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .site-header {
    border-radius: 24px;
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 18px;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px 18px;
  }

  .hero {
    padding: 32px;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(calc(100% - 18px), var(--max-width));
    margin-bottom: 40px;
  }

  .site-header {
    top: 10px;
    padding: 14px 16px;
  }

  .hero,
  .content-section {
    padding: 26px 20px;
  }

  #results {
    padding-left: 16px;
    padding-right: 16px;
  }

  #results .figure-grid {
    gap: 26px;
  }

  .hero-copy h1 {
    font-size: clamp(1.95rem, 6.6vw, 2.7rem);
    max-width: none;
  }

  .hero-subtitle {
    max-width: none;
    font-size: clamp(1.1rem, 4.4vw, 1.45rem);
    line-height: 1.16;
  }

  .hero-summary {
    font-size: 1rem;
    line-height: 1.75;
  }

  .hero-actions .button {
    flex-basis: 100%;
  }

  .hero-main-idea {
    padding: 20px 18px;
  }

  .hero-main-idea p:last-child {
    font-size: 1.15rem;
  }

  .workflow-step {
    padding: 20px 18px;
  }

  .pretraining-block {
    padding: 20px 18px;
  }

  .pretraining-svg-desktop {
    display: none;
  }

  .pretraining-svg-mobile {
    display: block;
    min-height: 0;
  }

  .pretraining-svg-mobile .svg-chart-title {
    font-size: 22px;
  }

  .author-row,
  .affiliation-list {
    gap: 8px 14px;
  }

  .affiliation-list {
    font-size: 0.94rem;
  }

  .site-nav {
    justify-content: flex-start;
    gap: 10px 14px;
    font-size: 0.94rem;
  }

  .svg-label {
    font-size: 19px;
  }

  .svg-small {
    font-size: 16px;
  }

  .svg-caption,
  .svg-axis-labels text {
    font-size: 12px;
  }

  .chart-mobile .svg-chart-title {
    font-size: 28px;
  }

  .chart-mobile .svg-caption {
    font-size: 17px;
  }

  .chart-mobile .svg-axis-labels text {
    font-size: 15px;
  }

  .chart-mobile .svg-legend text {
    font-size: 18px;
  }

  .chart-mobile .svg-line {
    stroke-width: 3.8;
  }

  .text-card,
  .feature-card,
  .method-card,
  .callout,
  .retrieval-card {
    padding: 22px 18px;
  }

  .classifier-head-equation {
    width: 100%;
  }

  .result-card .poster-svg {
    min-height: 300px;
  }

  .hero-figure {
    display: none;
  }

  .hero-figure-mobile {
    display: block;
  }

  .chart-desktop {
    display: none;
  }

  .chart-mobile {
    display: block;
  }

  .diagram-desktop {
    display: none;
  }

  .diagram-mobile {
    display: block;
  }
}