:root {
  color-scheme: light dark;
  --bg: #f8f9fb;
  --ink: #15181d;
  --muted: #66717f;
  --line: #dce2ea;
  --panel: #ffffff;
  --link: #1f6fbf;
  --code-bg: #eef2f6;
  --code-ink: #15181d;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101317;
    --ink: #edf1f6;
    --muted: #a4afbd;
    --line: #29313a;
    --panel: #151a20;
    --link: #8abfff;
    --code-bg: #1d242c;
    --code-ink: #edf1f6;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

main {
  width: min(100% - 40px, 920px);
  margin: 0 auto;
  padding: 72px 0 48px;
}

.intro {
  margin-bottom: 64px;
}

.kicker {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  margin-bottom: 18px;
  font-size: 4.4rem;
  line-height: 0.98;
}

h2 {
  margin-bottom: 16px;
  font-size: 1.45rem;
}

.summary {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.2rem;
}

.note {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 28px;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

section {
  padding: 34px 0;
  border-top: 1px solid var(--line);
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  background: var(--panel);
}

.facts div {
  min-width: 0;
  padding: 18px;
  border-right: 1px solid var(--line);
}

.facts div:last-child {
  border-right: 0;
}

dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.feature-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

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

code {
  border-radius: 4px;
  background: var(--code-bg);
  color: var(--code-ink);
  padding: 0.12em 0.32em;
}

pre {
  margin: 18px 0 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 18px;
  font-size: 0.92rem;
}

pre code {
  background: transparent;
  padding: 0;
}

footer {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 760px) {
  main {
    width: min(100% - 28px, 920px);
    padding-top: 48px;
  }

  h1 {
    font-size: 3rem;
  }

  .summary {
    font-size: 1.05rem;
  }

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

  .facts div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .facts div:last-child {
    border-bottom: 0;
  }
}