:root {
  color-scheme: light dark;
  --background: #f4f7fb;
  --surface: #ffffff;
  --text: #182230;
  --muted: #526173;
  --border: #d7e0ea;
  --accent: #155eef;
  --accent-hover: #004eeb;
  --callout: #eef4ff;
  --max-width: 760px;
}

* {
  box-sizing: border-box;
}

html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background: var(--background);
}

main {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

article,
.hero {
  padding: clamp(1.5rem, 5vw, 3rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 0.5rem 2rem rgb(24 34 48 / 8%);
}

h1,
h2,
h3 {
  line-height: 1.25;
  text-wrap: balance;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2rem, 7vw, 3rem);
  letter-spacing: -0.03em;
}

h2 {
  margin-top: 2.25rem;
  font-size: 1.4rem;
}

h3 {
  margin-top: 1.75rem;
  font-size: 1.1rem;
}

p,
ul,
ol {
  margin-top: 0.75rem;
  margin-bottom: 1rem;
}

li + li {
  margin-top: 0.35rem;
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--accent-hover);
}

a:focus-visible {
  outline: 0.2rem solid var(--accent);
  outline-offset: 0.2rem;
  border-radius: 0.15rem;
}

.eyebrow,
.subtitle,
.updated {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.subtitle {
  margin: 0;
  font-size: clamp(1.15rem, 3vw, 1.4rem);
}

.updated {
  margin-top: 0;
  font-size: 0.95rem;
}

.intro {
  font-size: 1.1rem;
}

.callout {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  background: var(--callout);
  border-left: 0.3rem solid var(--accent);
  border-radius: 0.25rem;
}

.link-list {
  display: grid;
  gap: 1rem;
  padding: 0;
  list-style: none;
}

.link-list a {
  display: block;
  padding: 1rem 1.25rem;
  font-weight: 700;
  text-decoration: none;
  background: var(--callout);
  border: 1px solid var(--border);
  border-radius: 0.65rem;
}

.link-list a:hover {
  border-color: var(--accent);
}

code {
  overflow-wrap: anywhere;
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;
}

footer {
  margin-top: 1.5rem;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 480px) {
  main {
    width: min(calc(100% - 1rem), var(--max-width));
    padding-top: 0.5rem;
  }

  article,
  .hero {
    border-radius: 0.75rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0d1520;
    --surface: #151f2d;
    --text: #edf3fa;
    --muted: #adbac9;
    --border: #334155;
    --accent: #8ab4ff;
    --accent-hover: #b5ceff;
    --callout: #1b2c47;
  }
}