:root {
  color-scheme: dark;
  --paper: #f4f0e8;
  --ink: #e9edf0;
  --muted: #99a4aa;
  --dim: #657078;
  --line: #303940;
  --panel: #141b20;
  --deep: #090e11;
  --orange: #ff8a3d;
  --mint: #75e0bb;
  --blue: #7bb7ff;
  background: var(--deep);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--deep); }
a { color: inherit; text-underline-offset: .25em; }
code, pre, .signature, .namespace, .choice, .eyebrow, .section-number, .status {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}
.skip-link { position: fixed; z-index: 20; left: 1rem; top: -5rem; padding: .8rem 1rem; background: var(--paper); color: #111; }
.skip-link:focus { top: 1rem; }

.hero {
  min-height: 92vh;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, transparent calc(50% - .5px), rgba(255,255,255,.055) 50%, transparent calc(50% + .5px)),
    radial-gradient(circle at 84% 10%, rgba(255,138,61,.18), transparent 24rem),
    radial-gradient(circle at 10% 90%, rgba(117,224,187,.08), transparent 28rem),
    var(--deep);
}
.masthead, .hero-grid, .primary-nav, main, footer { width: min(76rem, calc(100% - 2.5rem)); margin-inline: auto; }
.masthead { display: flex; justify-content: space-between; align-items: center; padding: 1.4rem 0; border-bottom: 1px solid var(--line); }
.brand { text-decoration: none; font-weight: 750; letter-spacing: -.02em; }
.status { display: flex; gap: .6rem; align-items: center; color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.status span { width: .55rem; height: .55rem; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 .25rem rgba(117,224,187,.11); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(18rem, .65fr); gap: clamp(3rem, 7vw, 7rem); align-items: end; padding: clamp(6rem, 14vh, 10rem) 0 5rem; }
.eyebrow, .section-number { color: var(--orange); margin: 0 0 1rem; font-size: .76rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
h1 { margin: 0; max-width: 10ch; font-size: clamp(4rem, 10vw, 8.3rem); line-height: .82; letter-spacing: -.075em; }
h1 span { display: block; color: var(--muted); font-size: .35em; letter-spacing: -.04em; margin-bottom: .18em; }
.lede { max-width: 48rem; margin: 2rem 0; color: #bdc5ca; font-size: clamp(1.18rem, 2vw, 1.55rem); line-height: 1.55; }
.install { display: inline-flex; max-width: 100%; border: 1px solid #59636a; background: #10161a; box-shadow: .45rem .45rem 0 rgba(255,138,61,.26); }
.install code { padding: 1rem 1.2rem; overflow-x: auto; color: var(--paper); font-size: clamp(.85rem, 2vw, 1rem); white-space: nowrap; }
.alias { max-width: 46rem; color: var(--muted); font-size: .92rem; }
.alias code { color: var(--mint); }
.release-card { border: 1px solid var(--line); background: rgba(20,27,32,.8); }
.release-card > p { margin: 0; padding: .9rem 1rem; color: var(--muted); border-bottom: 1px solid var(--line); font: 700 .72rem/1.3 ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; }
.release-card dl { margin: 0; }
.release-card dl div { display: grid; grid-template-columns: 1fr auto; gap: 1rem; padding: .85rem 1rem; border-bottom: 1px solid var(--line); }
.release-card dl div:last-child { border-bottom: 0; }
.release-card dt { color: var(--muted); }
.release-card dd { margin: 0; color: var(--paper); font-weight: 700; text-align: right; }
.primary-nav { display: flex; flex-wrap: wrap; gap: 0; border-top: 1px solid var(--line); }
.primary-nav a { min-width: 8rem; padding: 1rem 1.5rem; border-right: 1px solid var(--line); color: var(--muted); text-decoration: none; text-align: center; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--deep); background: var(--orange); }

.section { padding: clamp(4.5rem, 9vw, 8rem) 0; border-bottom: 1px solid var(--line); }
.two-column { display: grid; grid-template-columns: minmax(0, .9fr) minmax(20rem, 1.1fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; }
h2 { max-width: 14ch; margin: 0 0 1.5rem; font-size: clamp(2.7rem, 6vw, 5rem); line-height: .98; letter-spacing: -.055em; }
h3 { margin: 0 0 .7rem; font-size: 1.25rem; }
p { line-height: 1.7; }
.text-link { color: var(--mint); font-weight: 700; }
.section-heading { display: flex; justify-content: space-between; gap: 2rem; align-items: end; margin-bottom: 2.5rem; }
.section-heading h2 { margin-bottom: 0; }

.flow { display: flex; flex-direction: column; align-items: center; min-height: 30rem; padding: 2rem; border: 1px solid var(--line); background: linear-gradient(145deg, #151d22, #0c1215); }
.flow-node { width: min(25rem, 100%); padding: 1rem 1.2rem; border: 1px solid var(--line); background: var(--panel); }
.flow-node span { display: block; color: var(--dim); font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; }
.flow-node strong { display: block; margin-top: .35rem; font: 750 1.5rem/1.2 ui-monospace, monospace; }
.flow-root { border-left: .35rem solid var(--orange); }
.flow-destination { border-left: .35rem solid var(--mint); }
.arrow { padding: 1.1rem 0; color: var(--muted); font: .75rem/1.4 ui-monospace, monospace; }
.flow-types { display: grid; grid-template-columns: repeat(2, 1fr); width: min(30rem, 100%); gap: .55rem; }
.flow-types span { padding: .75rem; border: 1px solid var(--line); color: var(--blue); text-align: center; font: .78rem/1.3 ui-monospace, monospace; }

.example-grid { display: grid; grid-template-columns: .65fr 1.35fr; gap: 3rem; align-items: start; }
pre { margin: 0; padding: 1.5rem; overflow: auto; border: 1px solid var(--line); background: #0c1215; color: #dce3e6; line-height: 1.7; box-shadow: inset .25rem 0 0 var(--orange); }
.token-keyword { color: var(--blue); }
.token-call { color: var(--mint); }
.token-string { color: #ffc477; }

.api-grid, .migration-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.api-grid article, .migration-grid article { min-height: 16rem; padding: 1.5rem; border: 1px solid var(--line); background: var(--panel); }
.signature, .choice { display: inline-block; margin: 0 0 2.3rem; color: var(--orange); font-size: .76rem; font-weight: 800; }
.api-grid p:last-child, .migration-grid p { color: var(--muted); }
.namespace { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.namespace span { padding: .55rem .75rem; border: 1px solid var(--line); color: var(--blue); font-size: .78rem; }

.timeline { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.timeline li { display: grid; grid-template-columns: 3.5rem 1fr; gap: 1rem; align-items: center; padding: 1.15rem 0; border-bottom: 1px solid var(--line); }
.timeline > li > span { color: var(--orange); font: .75rem/1 ui-monospace, monospace; }
.timeline strong, .timeline small { display: block; }
.timeline strong { font-family: ui-monospace, monospace; }
.timeline small { margin-top: .3rem; color: var(--muted); }

.migration-grid { grid-template-columns: repeat(2, 1fr); }
.migration-grid article { min-height: 19rem; }
.migration-grid pre { padding: 1rem; box-shadow: none; font-size: .84rem; }
.test-list { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; padding: 1.25rem; border: 1px solid var(--line); }
.test-list strong { width: 100%; margin-bottom: .4rem; }
.test-list span { padding: .45rem .65rem; background: #1b242a; color: var(--muted); font-size: .82rem; }

.boundary { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(3rem, 8vw, 8rem); background: linear-gradient(90deg, transparent, rgba(255,138,61,.04)); }
.boundary p { color: #bac3c8; }
.doc-links { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.doc-links a { min-height: 9rem; padding: 1.25rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-decoration: none; }
.doc-links a:hover, .doc-links a:focus-visible { background: var(--panel); }
.doc-links strong, .doc-links span { display: block; }
.doc-links strong { color: var(--mint); }
.doc-links span { margin-top: .75rem; color: var(--muted); line-height: 1.45; }

footer { display: flex; justify-content: space-between; gap: 2rem; padding: 2.5rem 0 4rem; color: var(--muted); }
footer strong, footer span { display: block; }
footer strong { color: var(--paper); }
footer span { margin-top: .35rem; }
footer nav { display: flex; flex-wrap: wrap; gap: 1.25rem; align-items: start; }

@media (max-width: 56rem) {
  .hero-grid, .two-column, .example-grid, .boundary { grid-template-columns: 1fr; }
  .hero-grid { padding-top: 5rem; }
  .release-card { max-width: 32rem; }
  .api-grid { grid-template-columns: 1fr; }
  .api-grid article { min-height: auto; }
  .doc-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 38rem) {
  .masthead { align-items: flex-start; gap: 1rem; }
  .status { justify-content: flex-end; text-align: right; }
  .primary-nav a { flex: 1 1 33%; border-bottom: 1px solid var(--line); }
  .section-heading, footer { display: block; }
  .section-heading .text-link { display: inline-block; margin-top: 1rem; }
  .migration-grid, .doc-links { grid-template-columns: 1fr; }
  footer nav { margin-top: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media print {
  :root { color-scheme: light; }
  body { background: white; color: #111; }
  .hero { min-height: auto; background: white; }
  .primary-nav, .install, footer nav { display: none; }
  .section { break-inside: avoid; }
}