:root {
  color-scheme: light;
  --ink: #18222f;
  --muted: #5c6878;
  --line: #d8dee6;
  --paper: #ffffff;
  --soft: #f3f7f6;
  --teal: #166b72;
  --green: #477a43;
  --amber: #bd6b24;
  --rose: #a53e54;
  --indigo: #333c86;
  --shadow: 0 18px 50px rgba(24, 34, 47, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  padding: 0 40px;
  background: rgba(255, 255, 255, 0.84);
  border-bottom: 1px solid rgba(216, 222, 230, 0.88);
  backdrop-filter: blur(14px);
}

.brand {
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.95rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

.nav-strong {
  color: var(--teal) !important;
  font-weight: 700;
}

.hero {
  display: flex;
  align-items: center;
  min-height: 76vh;
  padding: 86px 40px 96px;
  background-image: linear-gradient(90deg, rgba(255,255,255,0.12), rgba(255,255,255,0.02)), url("site-hero.png");
  background-position: center;
  background-size: cover;
}

.hero-copy {
  width: min(720px, 100%);
  margin-left: max(0px, calc((100vw - 1180px) / 2));
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.86rem;
  font-weight: 800;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: 3.4rem;
  line-height: 1.08;
}

.hero-lede {
  max-width: 660px;
  margin: 24px 0 0;
  color: #334155;
  font-size: 1.18rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 750;
  text-decoration: none;
}

.button.primary {
  color: #fff;
  background: var(--teal);
  border-color: var(--teal);
}

.button.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
}

.section {
  padding: 78px 40px;
}

.section-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.two-column {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 52px;
  align-items: start;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

h2 {
  margin: 0;
  font-size: 2.15rem;
  line-height: 1.2;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.35;
}

.thesis {
  background: #ffffff;
}

.thesis-chain {
  display: grid;
  gap: 12px;
}

.thesis-chain div {
  min-height: 54px;
  padding: 14px 18px;
  background: var(--soft);
  border-left: 5px solid var(--teal);
  border-radius: 8px;
  font-weight: 720;
}

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

.comparison-item,
.model-card {
  min-height: 220px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.comparison-item p,
.model-card p {
  margin: 0;
  color: var(--muted);
}

.tag {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 4px 9px;
  color: #fff;
  background: var(--teal);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 800;
}

.accent-green {
  background: var(--green);
}

.accent-amber {
  background: var(--amber);
}

.band {
  background: #f6f8fb;
}

.path-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.path-row {
  display: grid;
  grid-template-columns: 0.65fr 1.25fr 1.25fr;
}

.path-row > div {
  padding: 18px 20px;
  border-top: 1px solid var(--line);
}

.path-row > div + div {
  border-left: 1px solid var(--line);
}

.path-head > div {
  border-top: 0;
  color: #fff;
  background: var(--indigo);
  font-weight: 800;
}

.model-card {
  min-height: 205px;
}

.model-card a {
  display: inline-flex;
  margin-top: 18px;
  color: var(--teal);
  font-weight: 800;
  text-decoration: none;
}

.read-section {
  background: #fbfaf7;
}

.risk-section {
  background: #17242c;
  color: #fff;
}

.risk-section .section-kicker {
  color: #8fd6d6;
}

.risk-grid {
  display: grid;
  gap: 14px;
}

.risk-grid article {
  padding: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
}

.risk-grid p {
  margin: 0;
  color: #d5e1e4;
}

.reading-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 24px;
}

.reading-list li {
  padding: 12px 0 12px 10px;
}

.reading-list a {
  color: var(--ink);
  font-weight: 760;
  text-decoration-color: rgba(22, 107, 114, 0.35);
  text-underline-offset: 5px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 34px 40px;
  color: #d9e4e7;
  background: #17242c;
}

.site-footer div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-footer a {
  color: #fff;
  font-weight: 750;
  text-decoration: none;
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 22px;
  }

  .nav {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .hero {
    min-height: 72vh;
    padding: 72px 24px 78px;
    background-position: 48% center;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.72rem;
  }

  .hero-lede {
    font-size: 1.02rem;
  }

  .section {
    padding: 58px 24px;
  }

  .two-column,
  .comparison-grid,
  .model-grid {
    grid-template-columns: 1fr;
  }

  .path-row {
    grid-template-columns: 1fr;
  }

  .path-row > div + div {
    border-left: 0;
  }

  .path-head {
    display: none;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 30px 24px;
  }
}