:root {
  --bg: #F5F3ED;
  --surface: #FFFFFF;
  --surface-muted: #EFEBE3;
  --label: #1A1D1A;
  --label-2: #5F645F;
  --label-3: #8E928C;
  --separator: #E6E1D7;
  --brand: #0F3D2E;
  --brand-soft: #E7EEE9;
  --gutter: 16px;
  --serif: "Roboto Slab", Georgia, serif;
  --sans: "Lato", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (min-width: 768px) { :root { --gutter: 40px; } }
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--label);
  font: 400 17px/1.65 var(--sans); -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

.nav {
  position: sticky; top: 16px; z-index: 10; margin: 16px auto 0; width: max-content; max-width: calc(100% - 2 * var(--gutter));
  display: flex; align-items: center; gap: 4px; padding: 6px 6px 6px 14px; border-radius: 999px;
  background: rgba(255,255,255,.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(15,61,46,.06); box-shadow: 0 6px 24px -12px rgba(15,61,46,.25); white-space: nowrap;
}
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--label); font-weight: 700; font-size: 15px; margin-right: 10px; }
.brand img { width: 16px; height: auto; }
.nav a.link { text-decoration: none; font-size: 14px; color: var(--label-2); padding: 8px 12px; border-radius: 999px; }
.nav a.link:hover, .nav a.link[aria-current] { color: var(--label); background: var(--surface-muted); }
@media (max-width: 560px) { .nav a.link { display: none; } }
.btn {
  display: inline-flex; align-items: center; background: var(--brand); color: #fff; text-decoration: none;
  font: 700 14px/1 var(--sans); padding: 10px 16px; border-radius: 999px; margin-left: 6px;
}
.btn:hover { background: #0b2f23; }

main { max-width: 720px; margin: 0 auto; padding: 88px var(--gutter) 96px; }
.eyebrow { font: 700 12px/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: var(--brand); margin: 0 0 20px; }
h1 { font: 500 clamp(36px, 6vw, 56px)/1.06 var(--serif); letter-spacing: -.03em; margin: 0; }
.updated { color: var(--label-3); font-size: 15px; margin: 16px 0 0; }
.intro { font-size: 19px; color: var(--label-2); margin: 32px 0 0; }

.toc { margin: 40px 0 0; padding: 20px 24px; background: var(--surface); border: 1px solid var(--separator); border-radius: 20px; }
.toc p { margin: 0 0 8px; font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--label-3); }
.toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 32px; font-size: 15px; }
@media (max-width: 560px) { .toc ol { columns: 1; } }
.toc a { text-decoration: none; color: var(--label-2); }
.toc a:hover { color: var(--brand); }

h2 { font: 500 26px/1.25 var(--serif); letter-spacing: -.015em; margin: 56px 0 12px; scroll-margin-top: 96px; }
h3 { font: 700 17px/1.4 var(--sans); margin: 28px 0 6px; }
p, li { color: #2E332E; }
ul { padding-left: 22px; }
li + li { margin-top: 6px; }

table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 15px; background: var(--surface); border: 1px solid var(--separator); border-radius: 16px; overflow: hidden; display: block; overflow-x: auto; }
th, td { text-align: left; vertical-align: top; padding: 14px 16px; border-bottom: 1px solid var(--separator); }
th { font-weight: 700; color: var(--label-2); background: #FAF8F4; font-size: 13px; letter-spacing: .04em; }
tr:last-child td { border-bottom: 0; }

.card { background: var(--surface); border: 1px solid var(--separator); border-radius: 20px; padding: 24px; margin: 24px 0; }
.card h3 { margin-top: 0; }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding-left: 44px; margin: 0 0 14px; }
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 50%;
  background: var(--brand-soft); color: var(--brand); font: 700 14px/28px var(--sans); text-align: center;
}
.callout { border-left: 3px solid var(--brand); padding: 4px 0 4px 18px; color: var(--label-2); }
details { border-bottom: 1px solid var(--separator); padding: 18px 0; }
details:first-of-type { border-top: 1px solid var(--separator); }
summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--label-3); font-weight: 400; font-size: 22px; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { margin: 12px 0 0; color: var(--label-2); }

footer { border-top: 1px solid var(--separator); padding: 32px 0 48px; font-size: 14px; color: var(--label-3); }
footer .wrap { max-width: 1180px; margin: 0 auto; padding: 0 var(--gutter); display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; align-items: center; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
footer a { text-decoration: none; color: var(--label-2); }
footer a:hover { color: var(--label); }