:root {
  color-scheme: light;
  --ink: #18201d;
  --muted: #5b6661;
  --paper: #f7f9f7;
  --line: #d5ddd8;
  --green: #176b4b;
  --green-soft: #e2f0e9;
  --coral: #b64c38;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 10;
  padding: 10px 14px;
  color: var(--white);
  background: var(--ink);
}

.skip-link:focus { top: 16px; }

.masthead,
main,
footer {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.masthead {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand { font-weight: 760; text-decoration: none; }

.masthead nav { display: flex; gap: 22px; }
.masthead nav a { color: var(--muted); text-decoration: none; }
.masthead nav a:hover { color: var(--green); }

.hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(250px, .7fr);
  gap: 64px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.section-number {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: .78rem;
  font-weight: 760;
  text-transform: uppercase;
}

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

h1 {
  max-width: 100%;
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 5.6rem;
  line-height: .98;
}

h1 span { color: var(--green); }

h2 {
  margin: 0;
  font-size: 2.55rem;
  line-height: 1.14;
}

h3 { margin: 0 0 8px; font-size: 1rem; }

.lede { max-width: 760px; margin: 24px 0; color: var(--muted); font-size: 1.12rem; }

code {
  overflow-wrap: anywhere;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.install,
.migration-options pre {
  margin: 0;
  overflow-x: auto;
  border: 1px solid #b8c8bf;
  border-radius: 6px;
  background: var(--white);
}

.install { width: fit-content; max-width: 100%; padding: 14px 18px; }
.alias { color: var(--muted); font-size: .94rem; }

.facts { margin: 0; border-top: 3px solid var(--green); }
.facts div { display: flex; justify-content: space-between; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; text-align: right; font-weight: 680; }

.section-nav {
  display: flex;
  gap: 24px;
  padding: 18px 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
}

.section-nav a { flex: 0 0 auto; color: var(--muted); text-decoration: none; }
.section-nav a:hover { color: var(--green); }

.section { padding: 88px 0; border-bottom: 1px solid var(--line); }
.split { display: grid; grid-template-columns: .75fr 1.25fr; gap: 72px; }
.split p:first-child { margin-top: 0; }

.sequence {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 36px 0;
  border: 1px solid var(--line);
  background: var(--white);
}

.sequence span,
.sequence b { padding: 18px 14px; text-align: center; }
.sequence b { color: var(--green); background: var(--green-soft); }

.columns,
.reference-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 30px;
}

.columns p { margin: 0; color: var(--muted); }
.columns strong { display: block; color: var(--ink); }

.migration-options { display: grid; gap: 24px; }
.migration-options article { padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.migration-options pre { padding: 12px 14px; }
.migration-options p { margin-bottom: 0; color: var(--muted); }

.verification { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; }
.verification ul { margin: 0; padding-left: 20px; columns: 2; column-gap: 36px; }
.verification li { break-inside: avoid; margin-bottom: 12px; }

.reference-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 32px; }
.reference-grid a { padding-top: 14px; border-top: 2px solid var(--line); text-decoration: none; }
.reference-grid a:hover { border-color: var(--coral); }
.reference-grid strong,
.reference-grid span { display: block; }
.reference-grid span { color: var(--muted); font-size: .9rem; }

footer {
  min-height: 110px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
}

footer strong,
footer span { display: block; }

@media (max-width: 760px) {
  .masthead,
  main,
  footer { width: min(100% - 28px, 1120px); }
  .masthead nav { gap: 14px; font-size: .9rem; }
  .hero { min-height: auto; grid-template-columns: 1fr; gap: 40px; padding: 72px 0; }
  h1 { font-size: 3.3rem; }
  h2 { font-size: 2rem; }
  .split,
  .verification { grid-template-columns: 1fr; gap: 32px; }
  .section { padding: 64px 0; }
  .sequence { grid-template-columns: 1fr; }
  .columns { grid-template-columns: 1fr; }
  .verification ul { columns: 1; }
  .reference-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 420px) {
  .masthead { align-items: flex-start; gap: 14px; padding: 18px 0; }
  .masthead nav { flex-wrap: wrap; justify-content: flex-end; }
  h1 { font-size: 2.5rem; }
  .reference-grid { grid-template-columns: 1fr; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; }
}