:root {
  --bg: #f7f4ee;
  --ink: #2a241c;
  --muted: #6d6458;
  --line: #d8d0c4;
  --serif: Georgia, "Iowan Old Style", serif;
  --sans: "Avenir Next", "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.7;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  background: var(--ink);
  color: var(--bg);
  padding: 0.45rem 0.7rem;
}

.skip-link:focus {
  top: 1rem;
}

.wrap {
  width: min(42rem, calc(100% - 2rem));
  margin-inline: auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.6rem 0 1rem;
}

.logo {
  text-decoration: none;
  font-weight: 700;
}

.nav-toggle {
  display: none;
}

.site-nav {
  display: flex;
  gap: 1rem;
  font-family: var(--sans);
  font-size: 0.92rem;
}

.date {
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.88rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  line-height: 1.2;
}

h2 {
  font-size: 1.2rem;
  margin-top: 2.4rem;
}

section {
  padding-bottom: 0.4rem;
}

ol {
  padding-left: 1.2rem;
}

li {
  margin: 0.8rem 0;
}

footer {
  border-top: 1px solid var(--line);
  margin-top: 2.5rem;
  padding: 1rem 0 2.5rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.88rem;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

@media (max-width: 720px) {
  header {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--line);
    background: transparent;
    font: inherit;
    padding: 0.3rem 0.65rem;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    padding-top: 0.6rem;
  }

  .site-nav.is-open {
    display: flex;
  }
}