:root {
  color-scheme: light;
  --paper: #f7f6f1;
  --paper-raised: color-mix(in srgb, var(--paper) 75%, white);
  --paper-raised-line: color-mix(in srgb, var(--line) 65%, var(--paper));
  --surface: #ffffff;
  --surface-soft: #f0f3f4;
  --ink: #111a31;
  --muted: #596477;
  --line: #dfe1df;
  --line-strong: #c8cdcb;
  --earth: #174e4a;
  --earth-soft: #e7efed;
  --sky: #78b8ca;
  --sky-soft: #eaf4f7;
  --deep-earth: #0d2039;
  --coral: #c86f58;
  --gold: #b39445;
  --violet: #777093;
  --shadow: 0 16px 40px rgba(17, 26, 49, 0.08);
  --content: 1220px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, strong { text-wrap: balance; }

button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(249, 248, 244, 0.94);
  border-bottom: 1px solid var(--paper-raised-line);
  backdrop-filter: blur(16px) saturate(1.15);
}

.site-nav {
  width: min(var(--content), calc(100% - 48px));
  height: 70px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto minmax(230px, 1fr);
  align-items: center;
  gap: 24px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  width: max-content;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.site-brand-logo {
  display: block;
  width: auto;
  height: 44px;
}

.site-nav-links { display: flex; align-items: stretch; height: 100%; gap: 30px; }

.site-nav-links button,
.site-nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 2px 0 0;
  border: 0;
  background: transparent;
  color: #3f495a;
  font-size: 15px;
  font-weight: 560;
  text-decoration: none;
  cursor: pointer;
}

.site-nav-links button::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: transparent;
}

.site-nav-links button.is-active { color: var(--ink); }
.site-nav-links button.is-active::after { background: linear-gradient(90deg, var(--earth), var(--sky)); }
.site-nav-links button:focus { outline: none; }
.site-nav-links button:focus-visible { outline: none; }
.site-nav-links button:focus-visible::after { height: 3px; background: var(--sky); }

.site-nav-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 9px;
}

.nav-action,
.nav-paper,
.primary-action,
.secondary-action,
.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 42px;
  padding: 0 19px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.nav-action { min-height: 38px; color: #fff; background: var(--ink); }
.nav-paper { min-height: 38px; border: 1px solid var(--line-strong); color: var(--ink); background: rgba(255, 255, 255, 0.78); }
.primary-action { border: 1px solid var(--ink); color: #fff; background: var(--ink); }
.secondary-action { border: 1px solid var(--line-strong); color: var(--ink); background: transparent; }
.primary-action:hover, .nav-action:hover { background: #26304a; }
.secondary-action:hover, .nav-paper:hover { border-color: var(--earth); background: var(--sky-soft); }
.nav-action, .nav-paper, .primary-action, .secondary-action { transition: translate 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease; }
.nav-action:hover, .nav-paper:hover, .primary-action:hover, .secondary-action:hover { translate: 0 -1px; }

.view-panel[hidden] { display: none; }

.hero-shell {
  position: relative;
  isolation: isolate;
  width: min(var(--content), calc(100% - 48px));
  min-height: 690px;
  margin: 0 auto;
  padding: 96px 0 92px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero-shell::before {
  position: absolute;
  z-index: -2;
  width: 740px;
  height: 310px;
  border: 1px solid rgba(23, 78, 74, 0.12);
  border-radius: 50%;
  content: "";
  rotate: -8deg;
}

.hero-shell::after {
  position: absolute;
  z-index: -3;
  inset: 8% 4% 6%;
  border-radius: 48%;
  background:
    radial-gradient(circle at 28% 38%, rgba(120, 184, 202, 0.18), transparent 24%),
    radial-gradient(circle at 72% 62%, rgba(23, 78, 74, 0.12), transparent 27%);
  content: "";
  filter: blur(4px);
}

.hero-copy { position: relative; max-width: 940px; text-align: center; }

.hero-kicker,
.section-kicker,
.caption-label {
  margin: 0 0 12px;
  color: var(--earth);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.hero-copy h1 {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI Variable Display", "Segoe UI", sans-serif;
  font-size: clamp(72px, 8.5vw, 118px);
  line-height: 0.86;
  font-weight: 780;
  letter-spacing: -0.065em;
}

.hero-title-earth { color: var(--deep-earth); }
.hero-title-verse {
  color: var(--sky);
  background: linear-gradient(115deg, #4d8fa5 8%, #78b8ca 50%, #4d8b81 96%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  margin: 32px auto 0;
  max-width: 790px;
  color: var(--ink);
  font-size: 21px;
  font-weight: 630;
  letter-spacing: -0.015em;
}

.hero-summary {
  max-width: 760px;
  margin: 16px auto 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.hero-proof {
  width: min(760px, 100%);
  margin: 30px auto 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(17, 26, 49, 0.12);
  border-bottom: 1px solid rgba(17, 26, 49, 0.12);
}

.hero-proof div { padding: 15px 12px 14px; border-right: 1px solid rgba(17, 26, 49, 0.1); }
.hero-proof div:last-child { border-right: 0; }
.hero-proof strong { display: block; color: var(--deep-earth); font-size: 21px; line-height: 1; letter-spacing: -0.03em; }
.hero-proof span { display: block; margin-top: 6px; color: var(--muted); font-size: 11px; font-weight: 760; text-transform: uppercase; letter-spacing: 0.04em; }

.hero-actions, .page-actions { display: flex; justify-content: center; gap: 10px; margin-top: 26px; }

.hazard-showcase {
  width: 100%;
  padding: 54px 0 72px;
  overflow: hidden;
  border-top: 1px solid #e6e1d4;
  border-bottom: 1px solid #e6e1d4;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 12%, rgba(179, 148, 69, 0.08), transparent 28%),
    radial-gradient(circle at 84% 78%, rgba(120, 184, 202, 0.06), transparent 26%),
    linear-gradient(135deg, var(--paper) 0%, #faf7ee 56%, var(--paper) 100%);
}

.hazard-showcase-heading {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px 32px;
}

.hazard-showcase-heading .section-kicker { grid-column: 1 / -1; margin: 0; color: var(--earth); }
.hazard-showcase-heading h2 { margin: 0; font-size: clamp(32px, 4vw, 50px); line-height: 1; }
.hazard-showcase-heading p:last-child { margin: 0 0 3px; color: var(--muted); font-size: 14px; }

.hazard-rail {
  width: 100%;
  overflow: hidden;
  padding: 5px 0;
}

.hazard-rail + .hazard-rail { margin-top: 10px; }

.hazard-rail-track {
  display: flex;
  width: max-content;
  animation: hazard-rail-forward 62s linear infinite;
  will-change: transform;
}

.hazard-rail.is-reverse .hazard-rail-track { animation-name: hazard-rail-reverse; animation-duration: 68s; }
.hazard-rail.is-paused .hazard-rail-track { animation-play-state: paused; }

.hazard-rail-set {
  display: flex;
  flex: none;
  gap: 12px;
  padding-right: 12px;
}

.hazard-tile {
  position: relative;
  flex: none;
  width: 278px;
  height: 184px;
  padding: 0;
  overflow: hidden;
  border: 1px solid #d6e1e3;
  border-radius: 10px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 26px rgba(17, 26, 49, 0.08);
  text-align: left;
  cursor: pointer;
}

.hazard-tile-2 { width: 326px; }
.hazard-tile-3 { width: 244px; }
.hazard-tile-4 { width: 300px; }
.hazard-tile img { display: block; width: 100%; height: 124px; object-fit: cover; transition: transform 360ms ease, filter 360ms ease; }
.hazard-tile-caption { display: grid; align-content: center; min-height: 60px; padding: 8px 12px 9px; border-top: 1px solid #e1e8e9; background: rgba(255, 255, 255, 0.98); }
.hazard-tile-caption strong { overflow: hidden; font-size: 13px; line-height: 1.2; text-overflow: ellipsis; white-space: nowrap; }
.hazard-tile-caption small { margin-top: 3px; overflow: hidden; color: var(--muted); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.hazard-tile:hover img, .hazard-tile:focus-visible img { transform: scale(1.035); filter: saturate(1.08); }
.hazard-tile:focus-visible { outline: 3px solid var(--coral); outline-offset: 2px; }
.hazard-gallery-error { width: min(1080px, calc(100% - 48px)); margin: 12px auto; color: var(--muted); }

.benchmark-identity,
.dataset-anatomy,
.benchmark-advantages,
.coverage-atlas,
.research-challenges,
.earth-observations,
.overview-ranking {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
}

.benchmark-identity {
  padding: 82px 0 92px;
  border-top: 1px solid var(--line);
}

.identity-heading { max-width: 620px; }
.identity-heading h2, .editorial-heading h2 { margin: 0; font-size: clamp(32px, 4vw, 52px); line-height: 1.08; }

.identity-heading h2,
.dataset-anatomy-heading h2,
.narrative-heading h2,
.coverage-heading h2,
.observation-heading h2,
.editorial-heading h2 {
  letter-spacing: -0.035em;
}

.earth-reasoning-workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 42px 0 58px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.reasoning-stage {
  position: relative;
  min-width: 0;
  padding: 24px 20px 26px;
  border-right: 1px solid var(--line);
}

.reasoning-stage:last-child { border-right: 0; }
.reasoning-stage header { display: grid; grid-template-columns: 27px minmax(0, 1fr); align-items: start; gap: 9px; min-height: 42px; }
.reasoning-stage header span { color: var(--coral); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; font-weight: 800; }
.reasoning-stage h3 { margin: 0; font-size: 16px; line-height: 1.25; }
.reasoning-stage > p { margin: 18px 0 0; color: var(--muted); font-size: 13.5px; line-height: 1.65; }

.stage-visual {
  width: 100%;
  height: 160px;
  margin-top: 17px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #f7f9f8;
}

.stage-image {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  margin: 17px 0 0;
  background: #fff;
}

.stage-image img {
  display: block;
  width: 100%;
  height: 124px;
  object-fit: cover;
}

.stage-image-contain img {
  object-fit: contain;
  background: #fff;
}

.stage-image figcaption {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 9px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.2;
}

.stage-image figcaption span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stage-image figcaption a {
  flex: 0 0 auto;
  color: var(--earth);
  font-weight: 750;
  text-decoration: none;
}

.stage-image figcaption a:hover,
.stage-image figcaption a:focus-visible { text-decoration: underline; }

.overview-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.overview-stats div { min-width: 0; padding: 27px 24px; border-right: 1px solid var(--line); text-align: center; }
.overview-stats div:last-child { border-right: 0; }
.overview-stats strong { display: block; font-size: 35px; line-height: 1; }
.overview-stats span { display: block; margin-top: 9px; color: var(--muted); font-size: 12px; text-transform: uppercase; }

.dataset-anatomy {
  padding: 88px 0 96px;
  border-top: 1px solid var(--line);
}

.dataset-anatomy-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, .65fr);
  align-items: end;
  gap: 48px;
}

.dataset-anatomy-heading h2 {
  max-width: 650px;
  margin: 0;
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 1.02;
}

.dataset-anatomy-heading > p {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.dataset-anatomy-grid {
  display: grid;
  grid-template-columns: minmax(0, 2.25fr) minmax(260px, .75fr);
  gap: 14px;
  margin-top: 42px;
}

.dataset-image-mosaic {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(190px, .75fr);
  grid-template-rows: repeat(2, 218px);
  gap: 10px;
}

.dataset-preview {
  position: relative;
  min-width: 0;
  appearance: none;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #14223a;
  font-size: 0;
  line-height: 0;
  text-align: left;
  cursor: pointer;
}

.dataset-preview-primary { grid-row: 1 / 3; }

.dataset-preview img {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: calc(100% - 74px);
  object-fit: cover;
  transition: transform 420ms cubic-bezier(.2,.75,.25,1), filter 420ms ease;
}

.dataset-preview-primary img { height: calc(100% - 82px); }

.dataset-preview-caption {
  position: absolute;
  inset: auto 0 0;
  min-height: 74px;
  padding: 11px 14px 12px;
  color: #fff;
  background: #14223a;
  line-height: 1.35;
}

.dataset-preview-primary .dataset-preview-caption { min-height: 82px; padding: 14px 17px; }
.dataset-preview-caption small,
.dataset-preview-caption strong,
.dataset-preview-caption em { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dataset-preview-caption small { color: #b1d7d2; font-size: 11px; font-weight: 800; text-transform: uppercase; }
.dataset-preview-caption strong { margin-top: 3px; font-size: 14px; }
.dataset-preview-primary .dataset-preview-caption strong { font-size: 17px; }
.dataset-preview-caption em { margin-top: 2px; color: #cbd3dc; font-size: 11px; font-style: normal; }
.dataset-preview:hover img, .dataset-preview:focus-visible img { transform: scale(1.035); filter: saturate(1.08) contrast(1.02); }
.dataset-preview:focus-visible { outline: 3px solid var(--coral); outline-offset: 2px; }

.dataset-package-profile {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 25px 24px 22px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--surface);
}

.package-profile-topline { display: flex; justify-content: space-between; gap: 12px; color: var(--coral); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.dataset-package-profile h3 { margin: 18px 0 0; font-size: 25px; line-height: 1.08; }
.dataset-package-profile > p { margin: 9px 0 18px; color: var(--muted); font-size: 13.5px; line-height: 1.6; }
.package-profile-counts { margin: 0; border-top: 1px solid var(--line); }
.package-profile-counts div { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 34px; border-bottom: 1px solid var(--line); }
.package-profile-counts dt { color: var(--muted); font-size: 12px; }
.package-profile-counts dd { margin: 0; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; font-weight: 800; }
.package-profile-total { display: flex; align-items: end; justify-content: space-between; margin-top: auto; padding-top: 18px; }
.package-profile-total span { color: var(--muted); font-size: 10px; text-transform: uppercase; }
.package-profile-total strong { font-size: 30px; line-height: .9; }
.package-profile-action { display: flex; align-items: center; justify-content: space-between; width: 100%; margin-top: 18px; padding: 11px 0 0; border: 0; border-top: 1px solid var(--line); color: var(--earth); background: transparent; font-size: 11.5px; font-weight: 800; cursor: pointer; }
.package-profile-action:hover, .package-profile-action:focus-visible { color: var(--ink); }

.dataset-distributions {
  margin-top: 54px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.dataset-capabilities { min-width: 0; padding: 28px 0 30px; }
.dataset-subheading .section-kicker { margin-bottom: 7px; }
.dataset-subheading h3 { margin: 0; font-size: 18px; }
.capability-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.capability-cloud span { display: inline-flex; align-items: center; gap: 8px; min-height: 34px; padding: 7px 10px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); background: var(--surface); font-size: 11px; }
.capability-cloud .capability-primary { border-color: #a8c3bf; color: var(--earth); background: var(--earth-soft); }
.capability-cloud strong { color: var(--ink); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }

.dataset-evidence-total {
  display: grid;
  grid-template-columns: 150px 118px minmax(0, 1fr);
  align-items: center;
  gap: 22px;
  padding-top: 27px;
}

.dataset-evidence-total span { color: var(--coral); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.dataset-evidence-total strong { font-size: 34px; line-height: 1; }
.dataset-evidence-total p { max-width: 600px; margin: 0; color: var(--muted); font-size: 13.5px; }

.benchmark-advantages {
  padding: 92px 0 98px;
  border-top: 1px solid var(--line);
}

.narrative-heading,
.coverage-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(310px, .72fr);
  align-items: end;
  gap: 58px;
}

.narrative-heading h2,
.coverage-heading h2 {
  max-width: 670px;
  margin: 0;
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 1.02;
}

.narrative-heading > p,
.coverage-heading > p {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.coverage-heading > p strong { color: var(--ink); font-weight: 760; }

.advantage-sequence {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 48px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.advantage-step {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 286px;
  padding: 24px 20px 27px;
  border-right: 1px solid var(--line);
}

.advantage-step:last-child { border-right: 0; }
.advantage-step::after { position: absolute; right: -1px; bottom: -1px; left: 0; height: 3px; content: ""; background: var(--earth); transform: scaleX(0); transform-origin: left; transition: transform 380ms cubic-bezier(.2,.75,.25,1); }
.advantage-step:hover::after { transform: scaleX(1); }
.advantage-index { color: var(--coral); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; font-weight: 800; }
.advantage-label { margin: 31px 0 0; color: var(--earth); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.advantage-step h3 { min-height: 43px; margin: 8px 0 0; font-size: 17px; line-height: 1.25; }
.advantage-step h3 + p { margin: 14px 0 0; color: var(--muted); font-size: 13.5px; line-height: 1.65; }
.advantage-step small { margin-top: auto; padding-top: 11px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; line-height: 1.45; }

.coverage-atlas {
  padding: 94px 0 100px;
  border-top: 1px solid var(--line);
}

.coverage-body {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, .62fr);
  gap: 52px;
  margin-top: 47px;
  padding-top: 30px;
  border-top: 1px solid var(--line-strong);
}

.coverage-spectrum { min-width: 0; }
.coverage-domain { position: relative; display: grid; grid-template-columns: 124px minmax(0, 1fr); gap: 22px; min-height: 76px; align-items: center; padding: 15px 0 18px; border-bottom: 1px solid var(--line); }
.coverage-domain > span { color: var(--coral); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; font-weight: 800; text-transform: uppercase; }
.coverage-domain > strong { padding-right: 30px; font-size: 14px; font-weight: 680; line-height: 1.55; }
.coverage-domain > i { position: absolute; bottom: -1px; left: 0; width: var(--coverage); height: 3px; background: var(--earth); }
.domain-atmosphere > i { background: #6b8d9a; }
.domain-solid > i { background: var(--coral); }
.domain-surface > i { background: #a28a5b; }

.coverage-proof { padding-left: 30px; border-left: 1px solid var(--line-strong); }
.coverage-proof > p:first-child { margin: 0 0 17px; color: var(--earth); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.coverage-proof dl { margin: 0; border-top: 1px solid var(--line); }
.coverage-proof dl div { display: flex; min-height: 52px; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); }
.coverage-proof dt { color: var(--muted); font-size: 12px; }
.coverage-proof dd { margin: 0; font-size: 22px; font-weight: 780; }
.coverage-note { margin: 22px 0 0; color: var(--muted); font-size: 12.5px; line-height: 1.7; }

.research-challenges {
  padding: 94px 0 102px;
  border-top: 1px solid var(--line);
}

.challenge-heading > p { max-width: 470px; }
.research-challenge-list { margin-top: 44px; border-top: 1px solid var(--line-strong); }

.research-challenge {
  display: grid;
  width: 100%;
  min-height: 124px;
  grid-template-columns: 44px minmax(180px, .72fr) minmax(330px, 1.35fr) 154px 30px;
  align-items: center;
  gap: 22px;
  appearance: none;
  padding: 22px 12px 22px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background 180ms ease, padding 180ms ease;
}

.research-challenge:hover { padding-left: 12px; background: color-mix(in srgb, var(--earth-soft) 52%, transparent); }
.research-challenge:focus-visible { outline: 2px solid var(--earth); outline-offset: -2px; background: var(--earth-soft); }
.challenge-number { align-self: start; padding-top: 3px; color: var(--coral); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; font-weight: 800; }
.challenge-event, .challenge-question { display: grid; gap: 7px; min-width: 0; }
.challenge-event small, .challenge-question small { color: var(--muted); font-size: 10.5px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
.challenge-event strong { font-size: 16.5px; line-height: 1.25; }
.challenge-question strong { font-size: 14.5px; font-weight: 620; line-height: 1.55; }
.challenge-complexity { display: grid; grid-template-columns: repeat(5, 1fr); gap: 3px; }
.challenge-complexity i { height: 5px; background: var(--earth); }
.challenge-complexity i:nth-of-type(4), .challenge-complexity i:nth-of-type(5) { background: #c9d6d4; }
.research-challenge:nth-child(2) .challenge-complexity i,
.research-challenge:nth-child(3) .challenge-complexity i { background: var(--earth); }
.challenge-complexity em { grid-column: 1 / -1; margin-top: 5px; color: var(--muted); font-size: 10.5px; font-style: normal; text-align: right; }
.challenge-open { color: var(--earth); font-size: 19px; text-align: right; transition: transform 180ms ease; }
.research-challenge:hover .challenge-open { transform: translateX(4px); }

.earth-observations {
  padding: 88px 0 96px;
  border-top: 1px solid var(--line);
}

.observation-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  align-items: end;
  gap: 54px;
}

.observation-heading h2 { margin: 0; font-size: clamp(34px, 4.4vw, 56px); line-height: 1.02; }
.observation-heading > p { margin: 0 0 4px; color: var(--muted); font-size: 15px; line-height: 1.75; }

.earth-observation-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, .8fr);
  grid-template-rows: repeat(2, 250px);
  gap: 12px;
  margin-top: 42px;
}

.observation-figure {
  display: grid;
  min-width: 0;
  grid-template-rows: minmax(0, 1fr) auto;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(17, 26, 49, 0.06);
}

.observation-primary { grid-row: 1 / 3; }
.observation-figure img { display: block; width: 100%; height: 100%; min-height: 0; object-fit: cover; transition: transform 520ms cubic-bezier(.2,.75,.25,1), filter 520ms ease; }
.observation-figure:hover img { transform: scale(1.025); filter: saturate(1.05); }
.observation-figure figcaption { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 18px; padding: 14px 16px 15px; border-top: 1px solid var(--line); }
.observation-figure figcaption span { grid-column: 1 / -1; color: var(--coral); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.observation-figure figcaption strong { overflow-wrap: anywhere; font-size: 14px; line-height: 1.35; }
.observation-primary figcaption strong { font-size: 17px; }
.observation-figure figcaption a { align-self: end; color: var(--earth); font-size: 11px; font-weight: 800; text-decoration: none; white-space: nowrap; }
.observation-figure figcaption a:hover, .observation-figure figcaption a:focus-visible { text-decoration: underline; }

.overview-ranking {
  margin-bottom: 92px;
  padding: 58px 58px 62px;
  border: 1px solid var(--paper-raised-line);
  border-radius: 20px;
  background: var(--paper-raised);
}
.editorial-heading { align-items: end; }
.editorial-heading p:not(.section-kicker) { max-width: 620px; margin: 14px 0 0; color: var(--muted); }

.overview-top-models { margin-top: 34px; border-top: 1px solid var(--line-strong); }
.overview-model-row { display: grid; grid-template-columns: 68px minmax(220px, 1fr) minmax(260px, 2fr) 92px; align-items: center; gap: 24px; min-height: 76px; border-bottom: 1px solid var(--line); }
.overview-model-row .rank { color: var(--muted); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.overview-model-row strong { font-size: 17px; }
.overview-model-track { height: 7px; overflow: hidden; border-radius: 999px; background: #e6e9e9; }
.overview-model-track span { display: block; height: 100%; border-radius: inherit; background: var(--earth); }
.overview-model-score { display: grid; justify-items: end; gap: 3px; text-align: right; }
.overview-model-score > small { color: var(--muted); font-size: 9px; font-weight: 760; letter-spacing: 0.08em; line-height: 1; text-transform: uppercase; white-space: nowrap; }
.overview-model-score > span { font-size: 22px; font-style: normal; font-weight: 760; line-height: 1; }
.overview-model-score em { margin-left: 2px; color: var(--muted); font-size: 11px; font-style: normal; }

.page-intro {
  position: relative;
  overflow: hidden;
  min-height: 330px;
  padding: 60px 24px 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 23% 28%, rgba(120, 184, 202, 0.12), transparent 25%),
    radial-gradient(circle at 77% 72%, rgba(23, 78, 74, 0.08), transparent 25%);
}

.page-intro h1 { margin: 0; font-family: "Avenir Next", "Segoe UI Variable Display", "Segoe UI", sans-serif; font-size: clamp(52px, 6.5vw, 82px); line-height: .95; letter-spacing: -0.05em; }
.page-intro > p:not(.section-kicker) { max-width: 700px; margin: 20px 0 0; color: var(--muted); font-size: 17px; }
.task-page-intro { min-height: 310px; }

.content-shell { width: min(var(--content), calc(100% - 48px)); margin: 0 auto; padding: 48px 0 96px; }
.task-content-shell { width: min(1420px, calc(100% - 32px)); }

.summary-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 58px; }
.summary-card { min-height: 132px; padding: 23px; border: 1px solid var(--paper-raised-line); border-radius: 12px; background: var(--paper-raised); box-shadow: 0 8px 22px rgba(17, 26, 49, 0.025); }
.summary-card span, .summary-card small { display: block; color: var(--muted); }
.summary-card span { font-size: 13px; font-weight: 800; text-transform: uppercase; }
.summary-card strong { display: block; margin: 10px 0 4px; font-size: 29px; }
.summary-card small { font-size: 15px; }

.strict-ranking { margin: 2px 0 64px; }
.strict-ranking-heading { display: flex; align-items: end; justify-content: space-between; gap: 36px; margin-bottom: 20px; }
.strict-ranking-heading h2 { margin: 0; font-size: 30px; }
.strict-ranking-heading > p { max-width: 440px; margin: 0 0 3px; color: var(--muted); font-size: 14.5px; line-height: 1.6; text-align: right; }
.strict-ranking-list { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.strict-ranking-row { position: relative; display: grid; min-width: 0; min-height: 150px; align-content: start; padding: 16px 16px 23px; border: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink); background: transparent; text-align: left; cursor: pointer; transition: background 180ms ease; }
.strict-ranking-row:nth-child(5n) { border-right: 0; }
.strict-ranking-row:nth-last-child(-n+5) { border-bottom: 0; }
.strict-ranking-row:nth-child(-n+5) { background: color-mix(in srgb, var(--earth-soft) 42%, transparent); }
.strict-ranking-row:hover, .strict-ranking-row:focus-visible, .strict-ranking-row.is-selected { background: var(--earth-soft); }
.strict-ranking-row:focus-visible { z-index: 1; outline: 2px solid var(--earth); outline-offset: -2px; }
.strict-rank { color: var(--coral); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; font-weight: 800; }
.strict-ranking-row > strong { min-height: 34px; margin-top: 10px; overflow-wrap: anywhere; font-size: 15px; line-height: 1.2; }
.strict-score { margin-top: 6px; font-size: 27px; font-weight: 780; line-height: 1; }
.strict-score small { margin-left: 2px; color: var(--muted); font-size: 11px; }
.strict-count { margin-top: 8px; color: var(--muted); font-size: 11px; text-transform: uppercase; }
.strict-track { position: absolute; inset: auto 18px 17px; height: 3px; overflow: hidden; background: #e0e6e4; }
.strict-track i { display: block; height: 100%; background: var(--earth); }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 18px; }
.section-heading h2 { margin: 0; font-size: 32px; }
.inline-controls { display: flex; gap: 10px; }

.field-control { display: grid; gap: 7px; margin-bottom: 17px; }
.field-control > span, .task-search-wrap label { color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.field-control select, .task-search-wrap input { width: 100%; min-height: 44px; padding: 0 13px; border: 1px solid var(--line-strong); border-radius: 6px; color: var(--ink); background: var(--surface); }
.inline-controls .field-control select { border-color: var(--paper-raised-line); background: var(--paper-raised); transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease; }
.inline-controls .field-control select:hover { background: color-mix(in srgb, var(--paper) 64%, white); }
.inline-controls .field-control select:focus-visible { outline: none; border-color: var(--earth); box-shadow: 0 0 0 2px color-mix(in srgb, var(--earth) 18%, transparent); }
.compact-control { min-width: 178px; margin: 0; }

.model-analysis-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(330px, 0.75fr); gap: 14px; align-items: start; }
.performance-chart, .model-profile, .table-wrap, .filter-panel, .task-list-panel, .task-detail-panel { border: 1px solid var(--paper-raised-line); border-radius: 12px; background: color-mix(in srgb, var(--surface) 94%, var(--paper)); box-shadow: 0 8px 24px rgba(17, 26, 49, 0.032); }
.performance-chart { min-height: 610px; margin: 0; padding: 24px; }
.performance-chart figcaption { display: flex; justify-content: space-between; margin-bottom: 20px; }
.performance-chart figcaption strong { display: block; font-size: 17px; }
.chart-scale { color: var(--muted); font-size: 13px; }
.bar-chart { display: grid; gap: 7px; }
.bar-row { display: grid; grid-template-columns: minmax(120px, 170px) 1fr 48px; align-items: center; gap: 13px; min-height: 20px; cursor: pointer; }
.bar-label { overflow: hidden; font-size: 14px; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.bar-track, .metric-track { height: 7px; overflow: hidden; border-radius: 999px; background: #e9ecec; }
.bar-fill, .metric-fill { display: block; height: 100%; border-radius: inherit; background: var(--earth); }
.bar-fill { transform-origin: left center; }
.bar-row.is-visible .bar-fill { animation: bar-grow 720ms cubic-bezier(.2,.75,.25,1); }
.bar-value, .metric-value { color: var(--muted); font-size: 14px; text-align: right; }

.model-profile { position: sticky; top: 80px; padding: 23px; }
.model-profile h3 { margin: 0; font-size: 25px; }
.rank-badge, .tag { display: inline-flex; margin-top: 8px; padding: 4px 7px; border: 1px solid var(--line-strong); border-radius: 4px; color: var(--muted); font-size: 12px; font-weight: 700; }
.profile-score-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin: 18px 0; border: 1px solid var(--line); }
.profile-score { padding: 13px; border-right: 1px solid var(--line); }
.profile-score:last-child { border-right: 0; }
.profile-score strong { display: block; font-size: 18px; }
.profile-score span { color: var(--muted); font-size: 11px; text-transform: uppercase; }
.profile-section { padding-top: 15px; border-top: 1px solid var(--line); }
.profile-section h4 { margin: 0 0 11px; font-size: 12px; text-transform: uppercase; }
.metric-list { display: grid; gap: 8px; }
.metric-row { display: grid; grid-template-columns: 140px 1fr 36px; align-items: center; gap: 9px; font-size: 13.5px; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.process-item { padding: 10px 7px; background: var(--surface); }
.process-item strong, .process-item span { display: block; }
.process-item strong { font-size: 14px; }
.process-item span { color: var(--muted); font-size: 10.5px; text-transform: uppercase; }

.table-wrap { margin-top: 14px; overflow-x: auto; }
.leaderboard-table { width: 100%; min-width: 1160px; border-collapse: collapse; font-size: 15px; }
.leaderboard-table th, .leaderboard-table td { padding: 15px 14px; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; }
.leaderboard-table th { color: var(--muted); background: var(--paper-raised); font-size: 12px; text-transform: uppercase; }
.leaderboard-table th:nth-child(2), .leaderboard-table td:nth-child(2) { text-align: left; }
.leaderboard-table tbody tr { cursor: pointer; }
.leaderboard-table tbody tr:hover, .leaderboard-table tbody tr.is-selected { background: var(--earth-soft); }

.task-toolbar { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 20px; margin-bottom: 20px; }
.task-search-wrap { display: grid; gap: 7px; }
.task-search-wrap input { min-height: 52px; font-size: 16px; }
.result-count { display: flex; align-items: baseline; gap: 8px; padding-bottom: 11px; }
.result-count strong { font-size: 24px; }
.result-count span { color: var(--muted); font-size: 12.5px; text-transform: uppercase; }

.task-browser { display: grid; grid-template-columns: 220px minmax(290px, 340px) minmax(500px, 1fr); gap: 12px; align-items: start; }

.task-question-body > :first-child { margin-top: 0; }
.task-question-body .markdown-body { min-width: 0; overflow-wrap: anywhere; }
.filter-panel { position: sticky; top: 80px; padding: 18px; }
.filter-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.filter-heading h2 { margin: 0; font-size: 18px; }
.text-button { padding: 0; border: 0; color: var(--earth); background: none; font-size: 12px; font-weight: 750; cursor: pointer; }
.task-list-panel { max-height: calc(100vh - 95px); overflow: hidden; }
.task-list-heading { padding: 13px 15px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 11.5px; font-weight: 800; text-transform: uppercase; }
.task-list { max-height: calc(100vh - 140px); overflow-y: auto; }
.task-row { width: 100%; display: block; padding: 14px 15px; border: 0; border-bottom: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; }
.task-row:hover, .task-row.is-selected { background: var(--earth-soft); }
.task-row > span:first-child { min-width: 0; }
.task-row-id, .task-row-title, .task-row-event { display: block; }
.task-row-id { color: var(--earth); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; font-weight: 700; }
.task-row-title { margin-top: 5px; font-size: 15px; font-weight: 720; line-height: 1.35; }
.task-row-event { overflow: hidden; margin-top: 5px; color: var(--muted); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }

.task-detail-panel { min-height: 600px; overflow: hidden; }
.task-detail-header { padding: 24px 26px 20px; border-bottom: 1px solid var(--line); }
.detail-topline { display: flex; align-items: start; justify-content: space-between; gap: 14px; }
.detail-tags { display: flex; flex-wrap: wrap; justify-content: end; gap: 6px; }
.task-detail-header h2 { margin: 17px 0 0; max-width: 760px; font-size: 27px; line-height: 1.2; }
.event-line { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.detail-tabs { display: flex; gap: 0; overflow-x: auto; padding: 0 18px; border-bottom: 1px solid var(--line); }
.detail-tab { min-height: 48px; padding: 0 12px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); font-size: 13.5px; font-weight: 700; white-space: nowrap; cursor: pointer; }
.detail-tab.is-active { border-bottom-color: var(--ink); color: var(--ink); }
.detail-content { padding: 26px; }
.markdown-body { max-width: 820px; }
.markdown-body h1 { margin: 0 0 20px; font-size: 29px; }
.markdown-body h2 { margin: 28px 0 10px; font-size: 21px; }
.markdown-body h3 { margin: 24px 0 8px; font-size: 17px; }
.markdown-body p, .markdown-body li { color: #354052; font-size: 16px; line-height: 1.78; }
.markdown-body code, .mono-path { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.markdown-body code { padding: 2px 4px; border-radius: 3px; background: var(--surface-soft); font-size: 0.92em; }
.code-block { max-width: 100%; margin: 15px 0 0; padding: 17px; overflow: auto; border: 1px solid var(--line); border-radius: 6px; background: #f5f7f7; color: #223047; font-size: 11px; line-height: 1.6; }
.artifact-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.artifact-heading h3 { margin: 0; }

.segmented-control { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface-soft); }
.segmented-control button { min-height: 31px; padding: 0 11px; border: 0; border-radius: 4px; color: var(--muted); background: transparent; font-size: 10px; font-weight: 750; cursor: pointer; }
.segmented-control button.is-active { color: var(--ink); background: var(--surface); box-shadow: 0 1px 3px rgba(17, 26, 49, .08); }

.code-editor { margin-top: 16px; overflow: hidden; border: 1px solid #ccd3d1; border-radius: 7px; background: #f8faf9; box-shadow: 0 8px 24px rgba(17, 26, 49, .05); }
.code-editor-header { min-height: 43px; display: grid; grid-template-columns: 64px minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 0 13px; border-bottom: 1px solid #dce1df; background: #eef2f1; }
.code-editor-header > span { display: flex; gap: 5px; }
.code-editor-header i { width: 8px; height: 8px; border-radius: 50%; background: #b5bfbd; }
.code-editor-header i:nth-child(2) { background: #c6a76b; }
.code-editor-header i:nth-child(3) { background: #789d91; }
.code-editor-header strong { overflow: hidden; color: #4d5966; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.code-copy { min-height: 28px; padding: 0 9px; border: 1px solid #c7cecc; border-radius: 4px; color: #47535f; background: #fff; font-size: 9px; font-weight: 750; cursor: pointer; }
.code-copy:hover { border-color: var(--earth); color: var(--earth); }
.code-editor-body { max-height: 620px; padding: 10px 0; overflow: auto; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; line-height: 1.65; }
.code-line { min-width: max-content; display: grid; grid-template-columns: 50px minmax(0, 1fr); padding-right: 18px; }
.code-line:hover { background: #edf3f1; }
.line-number { padding-right: 14px; color: #9aa5a3; text-align: right; user-select: none; }
.code-line code { color: #35435a; white-space: pre; }
.syntax-key, .syntax-keyword { color: #1a6c61; }
.syntax-number { color: #a34f3d; }
.syntax-literal { color: #6d5c9b; }
.syntax-comment { color: #7c8886; }

.object-inspector { margin-top: 16px; overflow: hidden; border: 1px solid var(--line); border-radius: 7px; background: #fbfcfb; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; }
.object-node > summary, .scalar-row { min-height: 38px; display: grid; grid-template-columns: minmax(120px, .8fr) minmax(0, 2fr) auto; align-items: center; gap: 12px; padding: 7px 13px; border-bottom: 1px solid #e7e9e8; }
.object-node > summary { grid-template-columns: minmax(120px, 1fr) auto auto; cursor: pointer; list-style-position: inside; }
.object-node > summary:hover, .scalar-row:hover { background: var(--earth-soft); }
.object-children { margin-left: 18px; border-left: 1px solid #d8dfdc; }
.object-key { overflow-wrap: anywhere; color: #31413e; font-weight: 720; }
.object-count, .value-type { color: #8a9693; font-size: 9px; text-transform: uppercase; }
.scalar-value { overflow-wrap: anywhere; color: #3c4657; }
.scalar-value.is-number { color: #a34f3d; }
.scalar-value.is-boolean, .scalar-value.is-null { color: #6d5c9b; }
.file-object-inspector { margin-top: 0; }


.table-preview { max-height: 620px; overflow: auto; border: 1px solid var(--line); border-radius: 6px; }
.table-preview table { width: 100%; border-collapse: collapse; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; }
.table-preview th, .table-preview td { padding: 9px 11px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.table-preview th { position: sticky; top: 0; z-index: 1; color: #35413f; background: #eef2f1; font-weight: 800; }
.table-preview tr:nth-child(even) td { background: #fafbfa; }
.preview-footnote { color: var(--muted); font-size: 10px; }
.html-preview-tabs, .derived-preview-note, .archive-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.html-preview-tabs { font-size: 11px; font-weight: 750; }
.html-preview-tabs a { color: var(--earth); }
.derived-preview-note strong, .derived-preview-note span { display: block; }
.derived-preview-note span { color: var(--muted); font-size: 10px; }
.archive-heading h3, .binary-inspector h3 { margin: 0; font-size: 22px; }
.archive-list { border-top: 1px solid var(--line); }
.archive-row { min-height: 40px; display: grid; grid-template-columns: 50px minmax(0, 1fr) 90px; align-items: center; gap: 12px; border-bottom: 1px solid var(--line); font-size: 10px; }
.archive-row code { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.archive-row > span:last-child { color: var(--muted); text-align: right; }
.binary-inspector { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 18px; align-items: start; }
.binary-inspector p { color: var(--muted); font-size: 11px; }

[data-reveal] { opacity: 1; translate: 0 0; }
[data-reveal].is-visible { animation: reveal-up 620ms cubic-bezier(.2,.72,.2,1); }
.evidence-card[data-reveal].is-visible:hover { translate: 0 -7px; }
.evidence-card-b[data-reveal] { transition-delay: 80ms; }
.evidence-card-c[data-reveal] { transition-delay: 150ms; }
.evidence-card-d[data-reveal] { transition-delay: 220ms; }

.package-intro { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.package-intro h3 { margin: 3px 0 0; font-size: 22px; }
.package-intro p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.package-id { color: var(--earth); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; font-weight: 700; }
.evidence-overview { display: grid; grid-template-columns: repeat(4, 1fr); margin-bottom: 18px; border: 1px solid var(--line); }
.evidence-stat { padding: 15px; border-right: 1px solid var(--line); }
.evidence-stat:last-child { border-right: 0; }
.evidence-stat strong, .evidence-stat span { display: block; }
.evidence-stat strong { font-size: 20px; }
.evidence-stat span { margin-top: 2px; color: var(--muted); font-size: 9px; text-transform: uppercase; }
.category-map { display: flex; flex-wrap: wrap; gap: 7px; margin: 0 0 18px; }
.category-map span { padding: 6px 9px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface-soft); font-size: 10px; }
.file-tools { margin-bottom: 18px; }
.file-group { margin-top: 22px; }
.file-group-header { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 8px; border-bottom: 1px solid var(--line-strong); }
.file-group-header h3 { margin: 0; font-size: 15px; }
.file-group-header span { color: var(--muted); font-size: 10px; }
.file-list { display: grid; }
.file-row { width: 100%; display: grid; grid-template-columns: 58px minmax(170px, 1.5fr) minmax(130px, 1fr) 64px; align-items: center; gap: 11px; min-height: 64px; padding: 8px 10px; border: 0; border-bottom: 1px solid var(--line); background: transparent; text-align: left; cursor: pointer; }
.file-row:hover { background: var(--earth-soft); }
.file-visual { width: 52px; height: 42px; display: grid; place-items: center; overflow: hidden; border: 1px solid var(--line); border-radius: 4px; background: var(--surface-soft); }
.file-visual img { width: 100%; height: 100%; object-fit: cover; }
.file-kind { color: var(--earth); font-size: 9px; font-weight: 800; text-transform: uppercase; }
.file-primary, .file-secondary { min-width: 0; }
.file-primary strong, .file-primary span, .file-secondary strong, .file-secondary span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-primary strong, .file-secondary strong { font-size: 10px; }
.file-primary span, .file-secondary span, .file-size { color: var(--muted); font-size: 9px; }
.file-size { text-align: right; white-space: nowrap; }

.empty-state { min-height: 360px; display: grid; place-content: center; justify-items: center; padding: 30px; color: var(--muted); text-align: center; }
.empty-state strong { color: var(--ink); font-size: 18px; }
.empty-state p { max-width: 440px; margin: 8px 0 0; }
.empty-index { font-size: 72px; font-weight: 760; line-height: 1; color: #d8dddc; }
.compact-empty { min-height: 180px; }

.file-dialog { width: min(1120px, calc(100% - 36px)); height: min(820px, calc(100vh - 36px)); padding: 0; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 7px; background: var(--surface); box-shadow: 0 24px 70px rgba(17, 26, 49, 0.2); }
.file-dialog::backdrop { background: rgba(17, 26, 49, 0.45); }
.dialog-header { display: flex; justify-content: space-between; gap: 20px; padding: 20px 22px 16px; border-bottom: 1px solid var(--line); }
.dialog-header h2 { margin: 0; font-size: 23px; }
.mono-path { margin: 6px 0 0; color: var(--muted); font-size: 10px; }
.icon-button { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; background: var(--surface); font-size: 21px; cursor: pointer; }
.dialog-meta { display: flex; flex-wrap: wrap; gap: 14px; min-height: 42px; align-items: center; padding: 8px 22px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.dialog-body { height: calc(100% - 139px); overflow: auto; padding: 18px 22px; }
.dialog-body .code-block { margin: 0; }
.preview-image { display: block; max-width: 100%; max-height: 100%; margin: 0 auto; object-fit: contain; }
.preview-frame { width: 100%; height: 100%; border: 0; }
.binary-preview { min-height: 420px; display: grid; place-content: center; justify-items: center; text-align: center; }
.binary-preview h3 { margin: 15px 0 6px; }
.binary-preview p { max-width: 480px; color: var(--muted); }

.site-footer { width: min(var(--content), calc(100% - 48px)); margin: 0 auto; padding: 42px 0 54px; display: grid; grid-template-columns: minmax(260px, 1fr) auto auto; align-items: start; gap: 30px 42px; border-top: 1px solid var(--line); }
.site-footer p { margin: 7px 0 0; color: var(--muted); font-size: 14px; }
.footer-meta { display: flex; flex-wrap: wrap; gap: 24px; color: var(--muted); font-size: 13px; }
.footer-links { display: flex; gap: 18px; font-size: 13px; font-weight: 760; }
.footer-links a { color: var(--earth); text-decoration: none; }
.footer-links a:hover, .footer-links a:focus-visible { text-decoration: underline; }

.loading-screen { position: fixed; inset: 0; z-index: 100; display: grid; place-content: center; justify-items: center; gap: 14px; background: var(--paper); transition: opacity 180ms ease, visibility 180ms ease; }
.loading-screen.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loading-mark { width: 34px; aspect-ratio: 1; border: 2px solid var(--line-strong); border-top-color: var(--earth); border-radius: 50%; animation: spin 800ms linear infinite; }
.error-banner { margin: 16px; padding: 13px; border: 1px solid #d7a291; border-radius: 6px; color: #7d3526; background: #fff3ef; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes reveal-up { from { translate: 0 22px; } to { translate: 0 0; } }
@keyframes bar-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes hazard-rail-forward { to { transform: translateX(-50%); } }
@keyframes hazard-rail-reverse { from { transform: translateX(-50%); } to { transform: translateX(0); } }

@media (max-width: 1050px) {
  .model-analysis-grid { grid-template-columns: 1fr; }
  .model-profile { position: static; }
  .task-browser { grid-template-columns: 210px minmax(260px, 320px); }
  .task-detail-panel { grid-column: 1 / -1; }
  .filter-panel { position: static; }
  .task-list-panel, .task-list { max-height: 620px; }
  .earth-reasoning-workflow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .reasoning-stage:nth-child(2) { border-right: 0; }
  .reasoning-stage:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .dataset-anatomy-grid { grid-template-columns: minmax(0, 1.8fr) minmax(240px, .8fr); }
  .dataset-image-mosaic { grid-template-columns: minmax(0, 1.35fr) minmax(170px, .8fr); }
  .advantage-sequence { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .advantage-step { border-bottom: 1px solid var(--line); }
  .advantage-step:nth-child(3) { border-right: 0; }
  .advantage-step:nth-last-child(-n+2) { border-bottom: 0; }
  .coverage-body { grid-template-columns: minmax(0, 1.35fr) minmax(250px, .65fr); gap: 34px; }
  .research-challenge { grid-template-columns: 34px minmax(160px, .7fr) minmax(260px, 1.3fr) 130px 24px; gap: 16px; }
}

@media (max-width: 760px) {
  .site-header { height: auto; }
  .site-nav { width: calc(100% - 28px); height: auto; min-height: 58px; grid-template-columns: 1fr auto; }
  .site-brand-logo { height: 34px; }
  .site-nav-actions { grid-row: 1; grid-column: 2; gap: 6px; }
  .site-nav-links { grid-row: 2; grid-column: 1 / -1; display: flex; justify-content: space-around; width: 100%; height: 42px; gap: 0; border-top: 1px solid var(--line); }
  .site-nav-links button { min-width: 0; padding: 0 12px; font-size: 10px; }
  .site-nav-links a { display: none; }
  .nav-action, .nav-paper { min-height: 34px; padding: 0 11px; font-size: 11px; }
  .hero-shell { width: calc(100% - 28px); min-height: 640px; padding: 64px 0 72px; }
  .hero-shell::before { width: 470px; height: 230px; }
  .hero-copy h1 { font-size: 58px; }
  .hero-lead { font-size: 17px; }
  .hero-summary { font-size: 14px; }
  .hero-proof { grid-template-columns: repeat(2, 1fr); width: min(340px, 100%); }
  .hero-proof div:nth-child(2) { border-right: 0; }
  .hero-proof div:nth-child(-n+2) { border-bottom: 1px solid rgba(17, 26, 49, 0.1); }
  .hero-actions, .page-actions { flex-wrap: wrap; }
  .hazard-showcase { padding: 42px 0 52px; }
  .hazard-showcase-heading { width: calc(100% - 28px); grid-template-columns: 1fr; margin-bottom: 20px; }
  .hazard-showcase-heading p:last-child { font-size: 11px; }
  .hazard-tile { width: 236px; height: 166px; }
  .hazard-tile-2 { width: 274px; }
  .hazard-tile-3 { width: 218px; }
  .hazard-tile-4 { width: 250px; }
  .hazard-tile img { height: 108px; }
  .hazard-tile-caption { min-height: 58px; }
  .benchmark-identity, .dataset-anatomy, .benchmark-advantages, .coverage-atlas, .research-challenges, .earth-observations, .overview-ranking { width: calc(100% - 28px); }
  .benchmark-identity { padding: 60px 0 68px; }
  .earth-reasoning-workflow { grid-template-columns: 1fr; margin: 34px 0 46px; }
  .reasoning-stage, .reasoning-stage:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .reasoning-stage:last-child { border-bottom: 0; }
  .stage-visual { height: 176px; }
  .stage-image img { height: 140px; }
  .overview-stats { grid-template-columns: repeat(2, 1fr); }
  .overview-stats div:nth-child(2) { border-right: 0; }
  .overview-stats div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .dataset-anatomy { padding: 64px 0 72px; }
  .dataset-anatomy-heading { grid-template-columns: 1fr; gap: 17px; }
  .dataset-anatomy-heading > p { font-size: 12px; }
  .dataset-anatomy-grid { grid-template-columns: 1fr; margin-top: 30px; }
  .dataset-image-mosaic { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: 300px 170px; }
  .dataset-preview-primary { grid-row: 1; grid-column: 1 / -1; }
  .dataset-package-profile { min-height: 430px; }
  .dataset-distributions { margin-top: 42px; }
  .dataset-capabilities { padding: 24px 0 26px; }
  .dataset-evidence-total { grid-template-columns: 90px 92px minmax(0, 1fr); gap: 12px; }
  .dataset-evidence-total strong { font-size: 28px; }
  .benchmark-advantages, .coverage-atlas, .research-challenges { padding: 64px 0 72px; }
  .narrative-heading, .coverage-heading { grid-template-columns: 1fr; gap: 17px; }
  .narrative-heading > p, .coverage-heading > p { font-size: 12px; }
  .advantage-sequence { grid-template-columns: 1fr; margin-top: 30px; }
  .advantage-step, .advantage-step:nth-child(3), .advantage-step:nth-last-child(-n+2) { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--line); }
  .advantage-step:last-child { border-bottom: 0; }
  .advantage-label { margin-top: 20px; }
  .advantage-step h3 { min-height: 0; }
  .coverage-body { grid-template-columns: 1fr; gap: 34px; margin-top: 30px; }
  .coverage-domain { grid-template-columns: 94px minmax(0, 1fr); gap: 14px; }
  .coverage-domain > strong { padding-right: 0; font-size: 11px; }
  .coverage-proof { padding: 0; border-left: 0; }
  .research-challenge-list { margin-top: 30px; }
  .research-challenge { grid-template-columns: 32px minmax(0, 1fr) 24px; gap: 10px 14px; padding: 20px 0; }
  .research-challenge:hover { padding-left: 8px; }
  .challenge-event { grid-column: 2; }
  .challenge-question { grid-column: 2; }
  .challenge-complexity { grid-column: 2; width: min(210px, 100%); }
  .challenge-open { grid-column: 3; grid-row: 1 / 4; }
  .earth-observations { padding: 64px 0 72px; }
  .observation-heading { grid-template-columns: 1fr; gap: 17px; }
  .observation-heading > p { font-size: 12px; }
  .earth-observation-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: 320px 220px; margin-top: 30px; }
  .observation-primary { grid-row: 1; grid-column: 1 / -1; }
  .overview-ranking { margin-bottom: 62px; padding: 38px 20px 42px; border-radius: 16px; }
  .overview-model-row { grid-template-columns: 38px minmax(0, 1fr) 76px; gap: 10px; }
  .overview-model-track { display: none; }
  .page-intro { min-height: 320px; padding: 60px 20px 54px; }
  .page-intro h1 { font-size: 48px; }
  .content-shell, .task-content-shell { width: calc(100% - 20px); padding-top: 28px; }
  .summary-strip { grid-template-columns: 1fr 1fr; gap: 9px; margin-bottom: 40px; }
  .summary-card { min-height: 120px; padding: 17px; }
  .strict-ranking { margin-bottom: 48px; }
  .strict-ranking-heading { align-items: start; flex-direction: column; gap: 10px; }
  .strict-ranking-heading > p { text-align: left; }
  .strict-ranking-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .strict-ranking-row, .strict-ranking-row:nth-child(5n) { min-height: 126px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .strict-ranking-row:nth-child(2n) { border-right: 0; }
  .strict-ranking-row:nth-last-child(-n+2) { border-bottom: 0; }
  .section-heading { align-items: start; flex-direction: column; }
  .inline-controls { width: 100%; }
  .compact-control { min-width: 0; flex: 1; }
  .performance-chart { padding: 16px; }
  .bar-row { grid-template-columns: 108px 1fr 38px; gap: 8px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .task-toolbar { grid-template-columns: 1fr; }
  .result-count { padding: 0; }
  .task-browser { grid-template-columns: 1fr; }
  .filter-panel, .task-list-panel, .task-detail-panel { width: 100%; }
  .task-list-panel, .task-list { max-height: 520px; }
  .detail-topline { flex-direction: column; }
  .detail-tags { justify-content: start; }
  .task-detail-header h2 { font-size: 22px; }
  .detail-content { padding: 19px; }
  .artifact-heading { align-items: start; flex-direction: column; }
  .segmented-control { align-self: stretch; }
  .segmented-control button { flex: 1; }
  .object-node > summary, .scalar-row { grid-template-columns: minmax(90px, .75fr) minmax(0, 1.6fr) auto; gap: 8px; padding-inline: 9px; }
  .object-children { margin-left: 8px; }
  .binary-inspector { grid-template-columns: 1fr; }
  .evidence-overview { grid-template-columns: repeat(2, 1fr); }
  .evidence-stat:nth-child(2) { border-right: 0; }
  .evidence-stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .file-row { grid-template-columns: 48px minmax(0, 1fr) 52px; }
  .file-secondary { display: none; }
  .file-visual { width: 44px; height: 38px; }
  .package-intro { align-items: start; flex-direction: column; }
  .site-footer { width: calc(100% - 28px); grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .hazard-rail { overflow-x: auto; scrollbar-width: thin; }
  .hazard-rail-track,
  .hazard-rail.is-reverse .hazard-rail-track,
  .hazard-rail.is-reduced-motion .hazard-rail-track { animation: none; transform: none; }
  .hazard-rail-set[aria-hidden="true"] { display: none; }
  .hazard-tile img { transition: none; }
  .advantage-step::after { display: none; }
  .research-challenge, .challenge-open { transition: none; }
}

@media (max-width: 430px) {
  .hero-copy h1 { font-size: 52px; }
  .summary-strip { grid-template-columns: 1fr; }
  .inline-controls { flex-direction: column; }
  .overview-stats div { padding: 23px 10px; }
  .overview-stats strong { font-size: 30px; }
  .dataset-image-mosaic { grid-template-rows: 250px 154px; }
  .dataset-preview-caption { min-height: 68px; padding-inline: 10px; }
  .dataset-preview-primary .dataset-preview-caption { min-height: 76px; }
  .dataset-preview img { height: calc(100% - 68px); }
  .dataset-preview-primary img { height: calc(100% - 76px); }
  .dataset-preview-caption strong { font-size: 11px; }
  .dataset-preview-primary .dataset-preview-caption strong { font-size: 15px; }
  .depth-bars > div { grid-template-columns: minmax(124px, 1fr) minmax(52px, .7fr) 25px; gap: 8px; }
  .dataset-evidence-total { grid-template-columns: 1fr auto; }
  .dataset-evidence-total p { grid-column: 1 / -1; }
  .earth-observation-grid { grid-template-columns: 1fr; grid-template-rows: repeat(3, 280px); }
  .observation-primary { grid-column: 1; }
  .strict-ranking-list { grid-template-columns: 1fr; }
  .strict-ranking-row, .strict-ranking-row:nth-child(2n), .strict-ranking-row:nth-child(5n) { min-height: 90px; grid-template-columns: 32px minmax(0, 1fr) 76px; align-items: center; align-content: center; gap: 8px; padding: 14px 14px 18px; border-right: 0; border-bottom: 1px solid var(--line); }
  .strict-ranking-row:last-child { border-bottom: 0; }
  .strict-ranking-row > strong { min-height: 0; margin: 0; }
  .strict-score { margin: 0; font-size: 23px; text-align: right; }
  .strict-count { grid-column: 2 / 4; margin: 0; }
  .strict-track { inset: auto 14px 10px 54px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; translate: none; }
  .bar-fill { transform: none !important; }
}