:root {
  color-scheme: light;
  --paper: #f0f1e5;
  --ink: #172d24;
  --muted: #475b4b;
  --rule: #98a69a;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1rem/1.6 Verdana, Geneva, sans-serif; }
a { color: inherit; text-underline-offset: .28em; }
a:hover { text-decoration-thickness: .16em; }
:focus-visible { outline: .16rem solid currentColor; outline-offset: .23rem; }
.skip { position: absolute; top: .6rem; left: .6rem; transform: translateY(-160%); padding: .45rem .7rem; background: var(--paper); z-index: 2; }
.skip:focus { transform: none; }
.frame { width: min(100% - 3rem, 73rem); margin-inline: auto; }
.top, footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .65rem 1.3rem; }
.top { padding-block: 1rem; border-bottom: 1px solid var(--rule); }
.wordmark { font-weight: 700; text-decoration: none; font-size: 1.1rem; }
.wordmark span { margin-right: .3rem; color: #346859; }
nav { display: flex; flex-wrap: wrap; gap: .45rem 1.4rem; font-size: .87rem; }
.intro { display: grid; grid-template-columns: 1.65fr 1fr; align-items: end; gap: 1rem 3rem; padding-block: clamp(2.2rem, 5vw, 4.5rem) 1.7rem; }
.edition { margin: 0 0 .55rem; color: var(--muted); font-size: .85rem; }
h1, h2, h3 { margin: 0; line-height: 1.1; }
h1, h2 { font-family: Georgia, serif; font-weight: 400; }
h1 { font-size: clamp(3.2rem, 8.3vw, 7.3rem); letter-spacing: -.065em; }
h2 { font-size: clamp(2rem, 4.2vw, 3.7rem); letter-spacing: -.045em; }
.intro > p { max-width: 34ch; margin: 0 0 .4rem; color: var(--muted); }
.transect { margin: 0; border-block: 1px solid var(--rule); }
.transect img { display: block; width: 100%; height: auto; }
figcaption { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .3rem; padding: .55rem 0; font-size: clamp(.68rem, 1.6vw, .9rem); color: var(--muted); }
figcaption span:last-child { text-align: right; }
figcaption span:nth-child(2) { text-align: center; }
.zones { display: grid; grid-template-columns: 1fr 1.65fr; gap: 1rem 3rem; padding-block: 3.7rem 4rem; }
.zones ol { margin: 0; padding: 0; list-style: none; counter-reset: zone; }
.zones li { display: grid; grid-template-columns: 2.6rem 1fr; gap: .6rem; padding-block: 1rem; border-top: 1px solid var(--rule); counter-increment: zone; }
.zones li::before { content: counter(zone, decimal-leading-zero); color: var(--muted); font-size: .88rem; font-weight: 700; }
.zones p { margin: .45rem 0 0; max-width: 55ch; color: var(--muted); }
.notes { background: #d6e1cb; padding-block: 3.4rem; }
.notes-inner { display: grid; grid-template-columns: 1fr 1.3fr; gap: .7rem 3rem; }
.notes p { max-width: 36ch; }
.notes dl, .notes dd { margin: 0; }
.notes dl > div { padding-block: .65rem; border-bottom: 1px solid #879b86; }
.notes dt { font-weight: 700; }
footer { padding-block: 1.4rem; font-size: .8rem; color: var(--muted); }
@media (max-width: 44rem) {
  .frame { width: calc(100% - 2rem); }
  .intro, .zones, .notes-inner { grid-template-columns: 1fr; }
  .zones { padding-block: 2.7rem; }
  .zones li { grid-template-columns: 1.9rem 1fr; }
}