:root {
  --bg: #005a8a;
  --fg: #ffffff;
  --muted: #74d4ff;
  --accent: #ffe020;
  --border: #004a71;
  --code-bg: #f0f9ff;
  --code-fg: #111111;
  --max-width: 720px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header / nav */
.site-header {
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

.nav__brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--fg);
  margin-right: auto;
}

.nav__link {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--fg);
}

/* Main */
main {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

h1 {
  font-size: 1.9rem;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.2rem;
  margin: 2rem 0 0.5rem;
}

p {
  margin: 0 0 1rem;
}

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

.muted {
  color: var(--muted);
}

/* Home hero */
.hero {
  text-align: center;
  padding: 0 0 3rem 0;
}

.hero__title {
  font-size: clamp(2.75rem, 10vw, 4.5rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 1.5rem;
}

.hero__lede {
  max-width: 34rem;
  margin: 0 auto 2.5rem;
  color: var(--muted);
  font-size: 1.05rem;
}

/* Code block */
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  text-align: left;
  margin: 0 auto;
  max-width: 40rem;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  word-break: break-word;
}

code {
  color: var(--code-fg);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Contact */
.address {
  font-style: normal;
  color: var(--muted);
  white-space: pre-line;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem;
  text-align: center;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 0.75rem;
}

.site-footer__nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
}

.site-footer__nav a:hover,
.site-footer__nav a[aria-current="page"] {
  color: var(--fg);
}