:root {
  --sky: #e6f2f5;
  --sheet: #f6fbfc;
  --ink: #173e37;
  --muted: #47625e;
  --line: #adc8c8;
  --lime: #d7ed8b;
  --deep: #20554b;
  --mono: Monaco, "Cascadia Mono", "Courier New", monospace;
  --display: Optima, Candara, "Trebuchet MS", sans-serif;
}
* { box-sizing: border-box; min-width: 0; }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(ellipse at 90% 0, #c9e4e9, transparent 65%), var(--sky);
  font: 15px/1.85 var(--mono);
  overflow-wrap: anywhere;
}
a { color: inherit; text-underline-offset: .25em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--deep); outline-offset: 5px; }
.skip { position: absolute; top: -100px; left: 16px; padding: 10px; background: var(--lime); z-index: 2; }
.skip:focus { top: 10px; }
.shell { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
.masthead { padding: 25px 0 18px; border-bottom: 1px solid var(--ink); }
.mast-line { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { font: 700 19px/1.35 var(--display); text-decoration: none; max-width: 340px; }
.stamp, .eyebrow, .folio { font-size: 10px; letter-spacing: .09em; text-transform: uppercase; }
.stamp { color: var(--muted); text-align: right; }
.nav { display: flex; flex-wrap: wrap; gap: 5px 17px; margin-top: 21px; font-size: 11px; }
.nav a { padding: 5px 0; text-decoration: none; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { border-color: var(--ink); }
.hero { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 40px; align-items: center; padding: 64px 0 40px; }
.eyebrow { margin: 0 0 20px; color: var(--muted); }
h1, h2, h3 { font-family: var(--display); font-weight: 500; line-height: 1.12; }
h1 { font-size: clamp(42px, 6.6vw, 82px); letter-spacing: -.045em; margin: 0 0 26px; }
h2 { font-size: 31px; letter-spacing: -.025em; margin: 0 0 18px; }
h3 { font-size: 25px; margin: 0 0 10px; }
p { margin: 0 0 20px; }
.lead { color: var(--muted); font-size: 15px; max-width: 60ch; }
.plant-drawing { margin: 0; background: var(--lime); border-radius: 50% 50% 3px 3px; padding: 22px 24px 16px; }
.plant-drawing svg { width: 100%; height: auto; display: block; }
.plant-drawing figcaption { font-size: 9px; text-align: center; line-height: 1.6; padding-top: 12px; }
.rule-note { padding: 18px 0; border-block: 1px dashed var(--muted); color: var(--muted); font-size: 12px; }
.directory { margin: 43px 0 55px; }
.directory > h2 { font-size: 22px; margin-bottom: 22px; }
.directory a { display: grid; grid-template-columns: 42px minmax(0, 1fr) minmax(0, 1fr); gap: 18px; align-items: baseline; border-top: 1px solid var(--line); padding: 21px 0; text-decoration: none; }
.directory a:last-child { border-bottom: 1px solid var(--line); }
.directory a:hover { background: #d9e9e8; }
.directory .num { font-size: 11px; color: var(--muted); }
.directory strong { font: 500 28px/1.25 var(--display); }
.directory small { font-size: 12px; line-height: 1.75; color: var(--muted); }
.page-head { padding: 48px 0 30px; display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 35px; border-bottom: 1px solid var(--ink); align-items: end; }
.page-head h1 { font-size: clamp(40px, 5.5vw, 65px); max-width: 730px; margin-bottom: 0; }
.page-head .lead { font-size: 13px; margin-bottom: 4px; }
.reading { width: min(100%, 760px); margin: 0 auto; padding: 5px 0 45px; }
.reading section { padding-top: 35px; }
.reading ul, .reading ol { padding-left: 24px; }
.reading li { margin-bottom: 12px; padding-left: 3px; }
.callout { background: var(--lime); padding: 20px 24px; margin: 28px 0 0; border-radius: 0 22px 0 0; font-size: 13px; }
.callout p:last-child { margin-bottom: 0; }
.species { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 24px; font-size: 11px; color: var(--muted); }
.sources { border-top: 1px dashed var(--muted); margin-top: 36px; font-size: 12px; }
.sources h2 { font: 700 11px/1.6 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.sources ul { list-style: none; padding: 0; }
.next { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 20px; font-size: 12px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; }
footer { border-top: 1px solid var(--ink); padding: 24px 0 35px; display: flex; flex-wrap: wrap; gap: 12px 30px; font-size: 10px; color: var(--muted); }
footer p { margin: 0; flex: 1 1 230px; }
.lost { font: 500 clamp(80px, 18vw, 180px)/1 var(--display); margin: 30px 0; color: var(--deep); }
@media (max-width: 720px) {
  .shell { width: calc(100% - 36px); }
  .stamp { display: none; }
  .brand { font-size: 18px; }
  .nav { gap: 5px 14px; margin-top: 15px; }
  .hero { grid-template-columns: 1fr; padding-top: 35px; gap: 24px; }
  .hero h1 { max-width: 11ch; }
  .plant-drawing { max-width: 330px; width: 100%; justify-self: center; }
  .directory a { grid-template-columns: 25px minmax(0, 1fr); gap: 7px 13px; }
  .directory small { grid-column: 2; }
  .directory strong { font-size: 25px; }
  .page-head { grid-template-columns: 1fr; gap: 22px; padding-top: 32px; }
  .reading { font-size: 14px; }
  h2 { font-size: 28px; }
  .callout { padding: 18px; }
}
@media print {
  body { background: white; color: black; }
  .shell { width: 100%; }
  .nav, .skip, .next, .plant-drawing, footer { display: none; }
  .reading { width: 100%; }
  .page-head { display: block; }
  .callout { background: white; border: 1px solid black; }
}