:root {
  color-scheme: light;
  --paper: #f5f3eb;
  --ink: #182a21;
  --muted: #4d5c50;
  --green: #264d3b;
  --line: #c9cec0;
  --serif: "PT Serif", Georgia, serif;
  --sans: "PT Sans", Arial, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.6 var(--sans);
}
a { color: var(--green); text-underline-offset: .23em; }
a:hover { color: #132b1e; }
a:focus-visible { outline: 2px solid #374f2c; outline-offset: 5px; }
img { display: block; max-width: 100%; }
.shell { width: min(100% - 80px, 1200px); margin-inline: auto; }
.skip { position: fixed; top: 1rem; left: 1rem; padding: .5rem 1rem; background: var(--paper); transform: translateY(-200%); z-index: 2; }
.skip:focus { transform: none; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  min-height: 5.2rem;
  border-bottom: 1px solid var(--line);
}
.wordmark { display: inline-flex; align-items: center; gap: .65rem; color: var(--ink); font: bold 1.6rem/1 var(--serif); text-decoration: none; }
.wordmark img { border-radius: 5px; }
nav { display: flex; flex-wrap: wrap; gap: .45rem 1.55rem; }
nav a { color: var(--muted); font-size: .92rem; text-decoration: none; }
nav a[aria-current], nav a:hover { color: var(--ink); text-decoration: underline; }

h1, h2, h3 { margin: 0; font-family: var(--serif); font-weight: 500; line-height: 1.08; }
h1 { font-size: clamp(3rem, 6vw, 6.15rem); letter-spacing: -.065em; }
h2 { font-size: clamp(1.65rem, 3vw, 2.55rem); letter-spacing: -.035em; }
h3 { font-size: 1.5rem; }
p { margin: 0; }

.hero {
  display: grid;
  grid-template-columns: minmax(18rem, .78fr) minmax(0, 1.22fr);
  gap: clamp(2rem, 5vw, 6rem);
  align-items: center;
  padding-block: clamp(2.8rem, 6vw, 5.4rem) clamp(2.8rem, 5vw, 4.3rem);
}
.hero-copy p { max-width: 24rem; color: var(--muted); font-size: clamp(1.05rem, 1.6vw, 1.27rem); margin-block: 1.4rem 1.6rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .9rem;
  background: var(--green);
  color: white;
  padding: .72rem 1.1rem;
  border-radius: .2rem;
  font-weight: 700;
  text-decoration: none;
}
.button:hover { background: #183927; color: white; }
.coast { margin: 0; }
.coast img { width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; background: #b9c6c1; }
figcaption { color: var(--muted); font-size: .84rem; margin-top: .5rem; }
.coast figcaption { text-align: right; }

.reading { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: 1.4rem clamp(2rem, 5vw, 6rem); border-top: 1px solid var(--line); padding-block: 1.8rem 3.5rem; }
.reading-list { list-style: none; margin: 0; padding: 0; }
.reading-list li + li { border-top: 1px solid var(--line); }
.reading-list a { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .35rem 1rem; padding-block: .85rem 1rem; text-decoration: none; }
.reading-list a:hover h3 { text-decoration: underline; text-underline-offset: .2em; }
.reading-list p { grid-row: 2; color: var(--muted); }
.reading-list span { grid-column: 2; grid-row: 1 / 3; align-self: center; font-size: 1.2rem; }
.site-footer { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--line); padding-block: 1.25rem 2rem; color: var(--muted); font-size: .9rem; }

.article { width: min(100%, 680px); padding-block: clamp(2.5rem, 5vw, 4.5rem); margin-inline: auto; font-size: 1.05rem; }
.article h1 { font-size: clamp(2.7rem, 6vw, 4.5rem); margin-block: 1.4rem 1.25rem; }
.article h2 { margin-block: 2rem .65rem; }
.article p + p { margin-top: 1rem; }
.article .intro { color: var(--muted); font-size: 1.22rem; margin-bottom: 1.6rem; }
.article li + li { margin-top: .4rem; }
.next { display: inline-block; margin-top: 1.7rem; }
.next span { margin-left: .45rem; }
.example { margin: 1.5rem 0; padding: 1.15rem 1.35rem; background: #e8ecdf; border-left: .2rem solid var(--green); }
.example blockquote { margin: 0; font: 1.2rem/1.5 var(--serif); }
.missing { min-height: 55vh; }
.missing .button { margin-top: 1.4rem; }
.error-code { color: var(--muted); font-weight: 700; }

@media (max-width: 720px) {
  .shell { width: calc(100% - 36px); }
  .site-header { flex-direction: column; align-items: flex-start; padding-block: 1rem; }
  .hero, .reading { grid-template-columns: minmax(0, 1fr); }
  .hero { gap: 1.8rem; }
  .reading { gap: .65rem; padding-bottom: 2.2rem; }
}