:root {
  --bg: #f7fafc;
  --bg-alt: #f0f5fb;
  --ink: #102438;
  --ink-soft: #3a5168;
  --line: #d7e3f0;
  --card: #ffffff;
  --accent: #1f5f93;
  --accent-2: #0f3e67;
  --emphasis: #0f4c81;
  --max: 1160px;
  --radius: 14px;
  --shadow: 0 14px 35px rgba(15, 53, 86, 0.08);
}

body[data-theme="dark"] {
  --bg: #0f1720;
  --bg-alt: #152230;
  --ink: #e5eff8;
  --ink-soft: #a8bfd3;
  --line: #2a3c4f;
  --card: #12202d;
  --accent: #6ba8d8;
  --accent-2: #9dc8ea;
  --emphasis: #8cc6f7;
  --shadow: 0 14px 35px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #fbfdff 0%, #f3f7fc 40%, #f8fbff 100%);
  line-height: 1.6;
}

body[data-theme="dark"] {
  background: linear-gradient(180deg, #0c141d 0%, #0f1b27 45%, #0e1924 100%);
}

h1,
h2,
h3 {
  margin: 0 0 0.6rem;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

h1,
h2 {
  font-family: "Source Serif 4", serif;
  font-weight: 600;
}

h1 {
  font-size: clamp(2rem, 3vw + 1.3rem, 4rem);
}

h2 {
  font-size: clamp(1.5rem, 1.4vw + 1rem, 2.5rem);
}

h3 {
  font-size: clamp(1rem, 0.5vw + 0.95rem, 1.3rem);
}

p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

strong {
  color: var(--ink);
}

.container {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.section {
  padding: 5.5rem 0;
}

.section-sm {
  padding: 2.4rem 0;
}

.section-lead {
  max-width: 100ch;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid transparent;
  backdrop-filter: saturate(130%) blur(8px);
  transition: background-color 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.site-header.scrolled {
  background-color: rgba(251, 253, 255, 0.93);
  border-color: var(--line);
  box-shadow: 0 8px 24px rgba(10, 44, 74, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-logo {
  height: 1.7rem;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1rem;
  margin-left: auto;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--accent-2);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 8px;
  padding: 0.45rem 0.7rem;
}

.theme-toggle {
  border: 0;
  background: transparent;
  color: var(--ink);
  border-radius: 999px;
  padding: 0;
  margin-left: 0.7rem;
  font: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 160ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
}

.theme-toggle:active {
  transform: translateY(0);
}

.theme-toggle-track {
  position: relative;
  width: 52px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid #9eb7cd;
  background: linear-gradient(180deg, #eef5fc 0%, #ddeaf7 100%);
  box-shadow: inset 0 1px 2px rgba(16, 37, 56, 0.12);
  transition: background-color 180ms ease, border-color 180ms ease;
}

.theme-toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid #b8cad9;
  box-shadow: 0 3px 8px rgba(16, 37, 56, 0.2);
  transition: transform 180ms ease;
}

.theme-toggle[aria-checked="true"] .theme-toggle-track {
  background: linear-gradient(180deg, #21405a 0%, #17364f 100%);
  border-color: #4f7594;
}

.theme-toggle[aria-checked="true"] .theme-toggle-thumb {
  transform: translateX(22px);
  background: #f3f8ff;
  border-color: #95b5cf;
}

body[data-theme="dark"] .theme-toggle,
body[data-theme="dark"] .nav-toggle,
body[data-theme="dark"] .btn,
body[data-theme="dark"] .scene-btn,
body[data-theme="dark"] .back-top {
  background: #182938;
  color: #e5eff8;
  border-color: #35516a;
}

body[data-theme="dark"] .theme-toggle-track {
  border-color: #4a6782;
  background: linear-gradient(180deg, #263a4d 0%, #1d3042 100%);
}

body[data-theme="dark"] .theme-toggle-thumb {
  background: #dce9f5;
  border-color: #8ea9c0;
}

body[data-theme="dark"] .site-header.scrolled {
  background-color: rgba(10, 18, 26, 0.92);
}

body[data-theme="dark"] .key-strip,
body[data-theme="dark"] .dramatic,
body[data-theme="dark"] .scaling-section,
body[data-theme="dark"] #takeaways {
  background: #132130;
}

body[data-theme="dark"] .formula-card,
body[data-theme="dark"] .conclusion-card,
body[data-theme="dark"] .conclusion-final,
body[data-theme="dark"] .scaling-content,
body[data-theme="dark"] .scaling-takeaway,
body[data-theme="dark"] .conclusion-metric {
  background: #182a3a;
  border-color: #2f485f;
}

body[data-theme="dark"] th {
  background: #1a2d3f;
  color: #d9e9f7;
}

body[data-theme="dark"] tbody tr.hi {
  background: #1e3549;
}

.hero {
  padding-top: 3.8rem;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.7rem;
  align-items: stretch;
}

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

.hero-copy {
  max-width: 76ch;
}

.hero-layout--single .hero-copy {
  margin: 0 auto;
  text-align: center;
}

.hero-layout--single .authors {
  margin-left: auto;
  margin-right: auto;
}

.hero-layout--single .affiliation-wrap {
  justify-content: center;
}

.hero-layout--single .button-row {
  justify-content: center;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.83rem;
  margin-bottom: 0.7rem;
}

.subtitle {
  font-size: clamp(1rem, 1vw + 0.7rem, 1.5rem);
  color: var(--ink);
}

.authors {
  max-width: 70ch;
}

.affiliation {
  color: var(--accent-2);
  font-weight: 600;
}

.affiliation-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.2rem;
}

.hero-logo {
  height: 2rem;
  width: auto;
  display: block;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.2rem 0 0.5rem;
}

.btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 500;
  transition: transform 160ms ease, border-color 160ms ease;
}

.btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.btn[aria-disabled="true"],
.resource[aria-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
}

.note,
.small {
  font-size: 0.86rem;
}

.card {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.2rem;
}

.hero-media {
  min-height: 0;
}

.hero-teaser-section {
  padding-top: 0.4rem;
}

.hero-media-standalone {
  max-width: 980px;
  margin: 0 auto;
}

.hero-teaser-figure {
  margin: 0;
  display: grid;
  gap: 0.6rem;
}

.hero-teaser-title {
  color: #113a5c;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
}

.hero-video-wrap {
  position: relative;
  border: 1px solid #c6d6e6;
  border-radius: 10px;
  overflow: hidden;
  background: #07121d;
}

.hero-teaser-gif {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.hero-teaser-legend {
  display: grid;
  gap: 0.25rem;
  border-top: 1px solid #d6e4f2;
  padding-top: 0.45rem;
  color: #355671;
  font-size: 0.84rem;
}

body[data-theme="dark"] .hero-teaser-title {
  color: #cfe6fb;
}

body[data-theme="dark"] .hero-teaser-legend {
  color: #b6d1e6;
  border-top-color: #325069;
}

.media-placeholder {
  min-height: 290px;
  display: grid;
  place-items: center;
  border: 1px dashed #b7cbe0;
  border-radius: 10px;
  color: #4d6a85;
  text-align: center;
  background:
    radial-gradient(circle at 14% 15%, #eaf2fb 0 16%, transparent 18%),
    radial-gradient(circle at 90% 75%, #edf4fd 0 14%, transparent 17%),
    linear-gradient(180deg, #fbfdff 0%, #f1f6fc 100%);
}

.key-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-alt);
}

.key-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.7rem;
}

.key-item {
  text-align: center;
  padding: 0.6rem;
}

.key-item h3 {
  font-size: clamp(1.3rem, 1.1vw + 0.95rem, 2rem);
  color: var(--ink);
}

.key-item p {
  font-size: 0.9rem;
  margin: 0;
}

.key-item .nowrap {
  white-space: nowrap;
}

.key-item-wide {
  min-width: 0;
}

.key-item.emphasis h3 {
  color: var(--emphasis);
}

.two-col,
.split,
.dataset-grid,
.cards-2,
.cards-3,
.cards-5,
.video-grid {
  display: grid;
  gap: 1rem;
}

.two-col,
.split {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.cards-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.cards-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.clean-list {
  margin: 0;
  padding-left: 1rem;
}

.formula-card {
  background:
    linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
}

#motivation .formula-card {
  margin-top: clamp(1.8rem, 1.6vw + 1rem, 2.8rem);
  padding: 1.35rem;
}

#motivation .formula-card h3 {
  margin: 0 0 0.95rem;
}

#motivation .formula-card .small {
  margin: 0 0 1rem;
}

.variable-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
  margin-top: 0.2rem;
}

#motivation .variable-grid {
  margin-top: 0.45rem;
}

.var-node {
  border: 1px solid #d6e4f2;
  border-radius: 10px;
  padding: 0.55rem 0.45rem;
  background: #fcfeff;
  text-align: center;
  display: grid;
  gap: 0.2rem;
}

.var-symbol {
  display: inline-block;
  font-family: "Source Serif 4", serif;
  color: #0f4777;
  font-size: 1.18rem;
  font-weight: 700;
  line-height: 1;
}

.var-label {
  color: #2a4b67;
  font-size: 0.88rem;
  font-weight: 600;
}

body[data-theme="dark"] .var-label {
  color: #d2e6f6;
}

body[data-theme="dark"] .var-node {
  background: #203446;
  border-color: #456581;
}

body[data-theme="dark"] .var-symbol {
  color: #e8f3ff;
}

.arrow,
.arrow-col {
  color: var(--accent);
  font-weight: 700;
}

.arrow {
  margin: 0.9rem 0 0.5rem;
}

.outcome {
  margin: 0;
  font-weight: 700;
  color: #0e426f;
}

body[data-theme="dark"] .outcome {
  color: #d7eaf9;
}

#motivation .outcome {
  margin-top: 0.95rem;
  padding-top: 0.7rem;
  border-top: 1px solid #d6e4f2;
}

.equation {
  margin-top: 1rem;
  text-align: center;
}

.eq {
  margin: 0;
  font-size: clamp(1.25rem, 0.8vw + 1.1rem, 1.9rem);
  color: var(--ink);
  font-family: "Source Serif 4", serif;
}

.eq-note {
  margin-top: 0.45rem;
}

.dataset-grid {
  grid-template-columns: 1.1fr 0.9fr;
}

.facts ul {
  margin: 0;
  padding-left: 1rem;
}

.facts-badge {
  display: inline-block;
  margin: 0 0 0.55rem;
  padding: 0.28rem 0.6rem;
  border: 1px solid #a8c3dc;
  border-radius: 999px;
  background: #edf5ff;
  color: #0d3f69;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.facts-note {
  margin: 0 0 0.8rem;
  font-size: 0.9rem;
  color: #33526d;
}

.map-placeholder {
  min-height: 250px;
  display: grid;
  place-items: center;
  text-align: center;
}

.gallery {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.gallery-item {
  min-height: 110px;
  border: 1px dashed #c0d1e3;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #53708c;
  background: #fcfeff;
}

.arch-flow {
  display: grid;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  gap: 0.5rem;
  align-items: stretch;
}

.arch-flow > div {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem;
  text-align: center;
  font-size: 0.9rem;
  background: #fbfdff;
}

.arch-flow span {
  color: #4a6782;
  font-size: 0.82rem;
}

.arch-figure {
  margin: 0;
  padding: 0.9rem;
}

.arch-image {
  display: block;
  width: 100%;
  max-width: 70%;
  height: auto;
  border-radius: 8px;
  margin-inline: auto;
}

.arch-figure figcaption {
  margin-top: 0.6rem;
}

.scale-line {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: thin;
}

.scale-chip {
  font-size: 0.82rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
  color: var(--ink);
  background: #fbfdff;
}

.scale-chip.highlight {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 700;
}

.scale-sep {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  flex: 0 0 auto;
}

.scale-sep.break {
  color: #0c4d81;
}

.metric {
  color: var(--accent-2);
  font-weight: 700;
}

.scaling-section {
  background: linear-gradient(180deg, #f8fcff 0%, #f1f7ff 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-header {
  max-width: 76ch;
  margin: 0 auto 1.2rem;
  text-align: center;
}

.section-intro {
  margin: 0 auto;
}

.scaling-block {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 1.2rem;
  align-items: stretch;
  margin-top: 1rem;
}

.scaling-block.reverse {
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
}

.scaling-content {
  border: 1px solid #d6e4f2;
  border-radius: 12px;
  background: #ffffff;
  padding: 1rem 1.1rem;
}

.scaling-number {
  display: inline-block;
  border: 1px solid #9ebfda;
  border-radius: 999px;
  padding: 0.12rem 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: #0f497a;
  background: #ebf5ff;
  margin-bottom: 0.65rem;
}

.scaling-content .metric {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
}

.key-message {
  margin: 0.7rem 0;
  padding: 0.62rem 0.75rem;
  border-left: 3px solid #91b4d3;
  background: #f6fbff;
  border-radius: 8px;
}

body[data-theme="dark"] .key-message {
  background: #203446;
  border-left-color: #78abd3;
  color: #c6deef;
}

body[data-theme="dark"] .key-message strong {
  color: #eef6ff;
}

.compute-block .key-message strong {
  color: #0d436f;
}

.scaling-takeaway {
  margin-top: 1rem;
  border: 1px solid #c7dcef;
  border-radius: 12px;
  padding: 1rem;
  background: linear-gradient(180deg, #ffffff 0%, #f4faff 100%);
  text-align: center;
}

.scaling-takeaway h3 {
  margin: 0;
}

.plot-placeholder {
  min-height: 260px;
  display: grid;
  place-items: center;
  text-align: center;
}

.plot-figure {
  margin: 0;
  padding: 0.75rem;
  display: grid;
  align-items: center;
}

.plot-image {
  display: block;
  width: 100%;
  max-width: 75%;
  height: auto;
  border-radius: 8px;
  margin-inline: auto;
}

.dramatic {
  background: linear-gradient(180deg, #f2f8ff 0%, #ebf3fc 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.prediction {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
  gap: 1rem;
  align-items: stretch;
}

.prediction-step {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfdff;
  padding: 1rem;
  text-align: center;
  display: grid;
  align-content: center;
  min-height: 170px;
}

.prediction-step h3 {
  margin-bottom: 0.4rem;
  color: #163955;
}

.prediction-caption {
  margin: 0;
  color: #3a5a74;
  font-weight: 500;
}

.prediction-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-width: 130px;
  text-align: center;
}

.prediction-arrow {
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
}

.prediction-action-label {
  color: var(--accent-2);
  font-size: 0.92rem;
  font-weight: 700;
}

.big-number {
  font-size: clamp(1.9rem, 1.8vw + 1rem, 3rem);
  color: #0b3f6a;
  font-weight: 700;
  margin: 0;
}

body[data-theme="dark"] .prediction-step {
  background: #1b2e3f;
  border-color: #3a5770;
}

body[data-theme="dark"] .prediction-step h3 {
  color: #d9ebfa;
}

body[data-theme="dark"] .big-number {
  color: #9fd3fb;
}

body[data-theme="dark"] .prediction-caption {
  color: #c3dcef;
}

body[data-theme="dark"] .prediction-arrow {
  color: #9fd3fb;
}

body[data-theme="dark"] .prediction-action-label {
  color: #d7ebfb;
}

.error {
  text-align: center;
  font-size: clamp(2.1rem, 2vw + 1rem, 3.8rem);
  color: #0a4a83;
  font-weight: 700;
  margin: 1rem 0 0.3rem;
}

.centered {
  text-align: center;
}

.video-controls {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.control-label {
  font-weight: 600;
  color: var(--ink);
}

.scene-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.scene-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-soft);
  padding: 0.42rem 0.65rem;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
}

.scene-btn.is-active {
  border-color: var(--accent);
  color: var(--accent-2);
  font-weight: 600;
}

#model-slider {
  width: min(360px, 100%);
}

.slider-label {
  font-weight: 600;
  color: var(--accent-2);
}

.video-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.comparison-grid {
  align-items: stretch;
}

.comparison-window {
  position: relative;
  border: 1px solid #c6d6e6;
  border-radius: 10px;
  overflow: hidden;
  background: #07121d;
  aspect-ratio: var(--compare-aspect, 16 / 9);
}

.compare-source-video {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.compare-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.video-slot.featured {
  border-color: #95b4d0;
}

.sota-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.45rem;
}

.sota-badge {
  border: 1px solid #9dbbd7;
  background: #eaf4ff;
  color: #0f4777;
  border-radius: 999px;
  padding: 0.32rem 0.68rem;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.sota-lead {
  margin-bottom: 1rem;
}

.sota-benchmark {
  margin-bottom: 1rem;
}

.sota-table th,
.sota-table td {
  text-align: center;
}

.sota-table td {
  vertical-align: middle;
}

.sota-table td:first-child {
  font-weight: 600;
}

.sota-table th:first-child,
.sota-table td:first-child {
  text-align: left;
}

.sota-qualitative h3 {
  margin-bottom: 0.75rem;
}

.sota-video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.sota-video-item {
  margin: 0;
}

.sota-video-grid video {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #c6d6e6;
  border-radius: 8px;
  background: #07121d;
}

.sota-video-item figcaption {
  margin-top: 0.35rem;
  text-align: center;
}

.visu-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.visu-item {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 8px 18px rgba(11, 35, 58, 0.04);
}

.visu-item video {
  display: block;
  width: 100%;
  height: auto;
  background: #07121d;
}

body[data-theme="dark"] .sota-video-item figcaption,
body[data-theme="dark"] .prediction-caption,
body[data-theme="dark"] .conclusion-label,
body[data-theme="dark"] .small,
body[data-theme="dark"] .section-intro,
body[data-theme="dark"] .key-message {
  color: #b8d0e3;
}

body[data-theme="dark"] .visu-item {
  background: #182b3d;
  border-color: #35506e;
}

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

.sota-card h3 {
  margin-bottom: 0.8rem;
}

.sota-metrics {
  display: grid;
  gap: 0.52rem;
}

.sota-metric-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  border: 1px solid #d9e7f5;
  border-radius: 9px;
  padding: 0.5rem 0.62rem;
  background: #fbfdff;
}

.sota-metric-row span {
  color: #34536e;
  font-size: 0.9rem;
}

.sota-metric-row strong {
  color: #0c446f;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.6rem 0.55rem;
  text-align: left;
  font-size: 0.94rem;
}

th {
  background: #f6faff;
  color: var(--ink);
}

tbody tr.hi {
  background: #edf5ff;
  font-weight: 600;
}

.flow-mini {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.5rem;
  align-items: center;
  text-align: center;
}

.flow-mini > div {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem;
}

.flow-mini > div:nth-child(2)::before,
.flow-mini > div:nth-child(2)::after {
  content: "";
  display: inline-block;
  width: 0.8rem;
}

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

#takeaways {
  background: linear-gradient(180deg, #f9fcff 0%, #f3f8ff 100%);
  border-top: 1px solid var(--line);
}

#takeaways .section-header {
  margin-bottom: 1rem;
}

.conclusion-card {
  padding: 1.05rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.conclusion-index {
  margin: 0 0 0.35rem;
  color: #0e4b7d;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

body[data-theme="dark"] .conclusion-index {
  color: #99c6e7;
}

.conclusion-card h3 {
  margin-bottom: 0.5rem;
}

.conclusion-card p {
  margin-bottom: 0;
}

.conclusion-metrics {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
  padding: 0.95rem;
}

.conclusion-metric {
  border: 1px solid #d6e4f2;
  border-radius: 10px;
  background: #fbfdff;
  padding: 0.65rem 0.7rem;
  text-align: center;
}

.conclusion-value {
  margin: 0;
  color: #0c446f;
  font-size: clamp(1.5rem, 1.2vw + 1rem, 2.2rem);
  font-weight: 700;
  line-height: 1.1;
}

.conclusion-label {
  margin: 0.35rem 0 0;
  color: #3d5d77;
  font-size: 0.88rem;
}

.conclusion-metric.highlight {
  border-color: #98bbd8;
  background: linear-gradient(180deg, #eef6ff 0%, #e6f2ff 100%);
}

.conclusion-metric.highlight .conclusion-value {
  color: #0b4674;
}

.conclusion-final {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid #c8ddf1;
  border-radius: 12px;
  background: linear-gradient(180deg, #ffffff 0%, #f4faff 100%);
  text-align: center;
}

.conclusion-final h3 {
  margin: 0 0 0.55rem;
}

.conclusion-final p {
  margin-left: auto;
  margin-right: auto;
  max-width: 70ch;
}

.resource {
  text-decoration: none;
  color: inherit;
}

.resource:hover {
  transform: translateY(-2px);
  transition: transform 140ms ease;
}

.authors-block {
  border-top: 1px solid var(--line);
}

.citation-block {
  border-top: 1px solid var(--line);
}

.citation-pre {
  margin: 0;
  padding: 1rem;
  border: 1px solid #c8daea;
  border-radius: 12px;
  background: #f8fbff;
  color: #173852;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.84rem;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
}

body[data-theme="dark"] .citation-pre {
  background: #1a2d3f;
  border-color: #3d5b74;
  color: #d7e9f8;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.1rem 0 2rem;
}

.back-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
}

.back-top.show {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 1100px) {
  .key-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .cards-5 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .hero-layout,
  .two-col,
  .split,
  .dataset-grid,
  .cards-3,
  .cards-2,
  .sota-grid,
  .conclusion-grid,
  .conclusion-metrics,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .sota-video-grid {
    grid-template-columns: 1fr;
  }

  .arch-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .prediction {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .variable-grid {
    grid-template-columns: 1fr;
  }

  .sota-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .prediction-action {
    min-width: 0;
    padding: 0.2rem 0;
  }

  .scaling-block,
  .scaling-block.reverse {
    grid-template-columns: 1fr;
  }

  .section-header {
    text-align: left;
    margin-bottom: 0.8rem;
  }

  #takeaways .conclusion-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #takeaways .conclusion-final {
    text-align: left;
  }

  #motivation .formula-card {
    margin-top: 0;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-block;
  }

  .nav-links {
    position: absolute;
    right: 1rem;
    top: 3.5rem;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 0.7rem;
    background: #fff;
    display: none;
    flex-direction: column;
    min-width: 180px;
    align-items: flex-start;
  }

  .nav-links.open {
    display: flex;
  }

  .cards-5 {
    grid-template-columns: 1fr;
  }

  #takeaways .conclusion-metrics {
    grid-template-columns: 1fr;
  }

  .sota-video-grid {
    grid-template-columns: 1fr;
  }

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

  .container {
    width: min(var(--max), calc(100% - 1.4rem));
  }
}

/* Force desktop layout on all viewport sizes when requested. */
@media (max-width: 920px) {
  .hero-layout {
    grid-template-columns: 1.1fr 0.9fr;
  }

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

  .two-col,
  .split {
    grid-template-columns: 1fr 1fr;
  }

  .dataset-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .cards-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .cards-2,
  .sota-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cards-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .video-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .sota-video-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .conclusion-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .conclusion-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .prediction {
    grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
    text-align: initial;
  }

  .variable-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .arch-flow {
    grid-template-columns: repeat(6, minmax(120px, 1fr));
  }

  .gallery {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .scaling-block,
  .scaling-block.reverse {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .section-header,
  #takeaways .conclusion-final {
    text-align: center;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: none;
  }

  .nav-links {
    position: static;
    display: flex;
    flex-direction: row;
    min-width: 0;
    border: 0;
    border-radius: 0;
    padding: 0;
    background: transparent;
    align-items: center;
  }
}