:root {
  --color-brand: #5b8dff;
  --color-ink: #e7eaf3;
  --color-muted: #9aa4bd;
  --color-border: #2a3150;
  --color-bg: #0f1424;
  --wrap-width: 960px;
}

@media (prefers-color-scheme: light) {
  :root {
    --color-brand: #2f6fed;
    --color-ink: #16213e;
    --color-muted: #5a6478;
    --color-border: #e4e7ee;
    --color-bg: #ffffff;
  }
}

* {
  box-sizing: border-box;
}

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

.wrap {
  max-width: var(--wrap-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

a {
  color: var(--color-brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  border-bottom: 1px solid var(--color-border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand img {
  display: block;
}

.brand img.brand-logo--light {
  display: none;
}

@media (prefers-color-scheme: light) {
  .brand img.brand-logo--dark {
    display: none;
  }

  .brand img.brand-logo--light {
    display: block;
  }
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--color-ink);
  font-weight: 500;
}

.hero {
  padding: 5rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero .lede {
  color: var(--color-muted);
  font-size: 1.15rem;
  max-width: 40rem;
  margin: 0 auto;
}

.page {
  padding: 3rem 0;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}