:root {
  --ink: #1b1f1c;
  --muted: #5c6560;
  --green: #1e4d3b;
  --green-dark: #132e24;
  --gold: #b08d3e;
  --cream: #f3efe6;
  --white: #fff;
  --line: #d8d2c6;
  --max: 1080px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  font: 17px/1.65 "Segoe UI", Calibri, Arial, sans-serif;
  background: var(--white);
}
a { color: var(--green); }
img { max-width: 100%; height: auto; }
.wrap { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }

.topbar {
  background: #0a1c16;
  color: #e6eee9;
  font-size: 14px;
}
.topbar .wrap { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; flex-wrap: wrap; }
.topbar a { color: #fff; text-decoration: none; }

.site-header {
  background: var(--green-dark);
  border-bottom: 3px solid var(--gold);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 0; }
.logo { display: block; text-decoration: none; }
.logo img {
  height: 58px;
  width: auto;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,.45));
}
nav ul { display: flex; gap: 6px 14px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; max-width: 640px; justify-content: flex-end; }
nav a { text-decoration: none; color: #fff; font-weight: 600; font-size: 15px; }
nav a.active, nav a:hover { color: var(--gold); }

.hero {
  background: linear-gradient(160deg, var(--green-dark), var(--green));
  color: #fff;
  padding: 48px 0 40px;
}
.hero h1 { margin: 0 0 10px; font-size: clamp(28px, 4.5vw, 44px); line-height: 1.15; }
.hero p { margin: 0 0 10px; max-width: 40rem; font-size: 18px; }
.kicker { letter-spacing: .04em; text-transform: uppercase; font-size: 13px; opacity: .85; margin: 0 0 8px; }

.page-hero { background: var(--cream); border-bottom: 1px solid var(--line); }
.page-hero .wrap { padding: 32px 0; }
.page-hero h1 { margin: 0 0 8px; color: var(--green-dark); }
.lede { margin: 0; color: var(--muted); }

main { padding: 36px 0 56px; }
h2 { color: var(--green-dark); margin-top: 1.7em; }
h3 { color: var(--green); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 0 16px;
  background: #fff;
  text-decoration: none;
  color: inherit;
  display: block;
  overflow: hidden;
}
.card:hover { border-color: var(--gold); }
.card img { width: 100%; height: 260px; object-fit: contain; background: #fff; display: block; }
.card h3, .card p { padding: 0 16px; }
.card h3 { margin: 12px 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card ul { margin: 0 16px; padding-left: 1.1rem; color: var(--muted); font-size: 15px; }

.fig { margin: 0 0 22px; }
.fig img { width: 100%; border-radius: 10px; background: #eef3f0; }
.fig figcaption { font-size: 13px; color: var(--muted); margin-top: 6px; }

.two-lists { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 800px) {
  .two-lists { grid-template-columns: 1fr; }
}

.two-col { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 28px; align-items: start; }
.portrait { border-radius: 10px; width: 100%; object-fit: cover; }
.callout, .note { background: var(--cream); padding: 18px; border-radius: 10px; }
.note { font-size: 15px; color: var(--muted); }

.btn {
  display: inline-block;
  background: var(--gold);
  color: #1a1408;
  text-decoration: none;
  font-weight: 700;
  padding: 10px 16px;
  border-radius: 6px;
}
.btn.ghost { background: transparent; color: #fff; border: 1px solid #fff; margin-left: 8px; }

table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--green-dark); }

ol.steps { padding-left: 1.2rem; }
ol.steps li { margin: 0 0 10px; }

.site-footer { background: var(--green-dark); color: #d5e4dc; padding: 32px 0 18px; font-size: 15px; }
.site-footer a { color: #fff; }
.site-footer .wrap { display: grid; grid-template-columns: 1.3fr 1fr; gap: 24px; }
.fine { opacity: .75; margin-top: 22px; font-size: 13px; }
.cite { font-size: 13px; color: var(--muted); }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 800px) { .pair { grid-template-columns: 1fr; } }

@media (max-width: 800px) {
  .two-col, .site-footer .wrap { grid-template-columns: 1fr; }
}

/* Shared accessibility and responsive refinements */
:root { --gold-light: #e3c57f; }
html { scroll-padding-top: 1rem; }
body { overflow-wrap: break-word; }
address { font-style: normal; }
.logo { flex: 0 1 290px; min-width: 0; }
.logo img { max-width: 100%; width: auto; height: auto; max-height: 64px; }
.logo span { display: block; color: #fff; font-weight: 700; font-size: 18px; line-height: 1.25; margin-top: 6px; }
nav a.active, nav a:hover { color: var(--gold-light); }
nav a { display: inline-block; padding: 4px 0; }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible { outline: 3px solid #c28c13; outline-offset: 4px; }
.skip-link { position: absolute; left: 16px; top: -100px; background: white; color: #132e24; padding: 10px 16px; z-index: 100; }
.skip-link:focus { top: 8px; }
.menu-toggle { display: none; border: 1px solid #e3c57f; border-radius: 4px; background: transparent; color: white; font: inherit; padding: 8px 16px; min-height: 44px; }
.procedure-figure { max-width: 480px; margin: 24px auto; }
.table-scroll { overflow-x: auto; }
main > .cite { max-width: 1080px; margin: 20px auto; padding: 0 16px; }
.two-col > *, .grid > * { min-width: 0; }
@media (max-width: 900px) {
 .site-header .wrap { flex-wrap: wrap; }
 .logo { flex-basis: 230px; }
 .menu-toggle { display: block; }
 #primary-nav { display: none; width: 100%; }
 #primary-nav.is-open { display: block; }
 nav ul { max-width: none; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 2px 18px; }
 nav a { padding: 9px 0; min-height: 44px; }
}
@media (max-width: 420px) {
 .logo { flex-basis: 200px; }
 .logo span { font-size: 16px; }
 .hero { padding: 30px 0; }
 .btn.ghost { margin: 10px 0 0; }
 th, td { padding: 8px 6px; }
}

@media (min-width:901px) { .logo { flex-basis:350px; } }