:root {
  --paper: #f2eee5;
  --paper-deep: #e5dfd2;
  --ink: #293324;
  --moss: #65745c;
  --moss-dark: #495842;
  --rule: #aaa99e;
  --cream: #faf7f0;
  --serif: Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", "Courier New", monospace;
  --page: min(1180px, calc(100vw - 2rem));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--mono); line-height: 1.6; }
a { color: inherit; text-underline-offset: 0.2em; }
a:hover { color: var(--moss-dark); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.skip-link { position: fixed; z-index: 10; top: 0.75rem; left: 0.75rem; padding: 0.6rem 0.8rem; color: var(--cream); background: var(--ink); transform: translateY(-180%); }
.skip-link:focus { transform: none; }
.shell { width: var(--page); margin-inline: auto; }
.site-header { border-bottom: 1px solid var(--rule); }
.site-header .shell { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: 0.8rem; text-decoration: none; font-weight: 700; letter-spacing: -0.03em; }
.brand-mark { width: 1.9rem; height: 1.9rem; display: grid; place-items: center; color: var(--cream); background: var(--ink); border-radius: 50%; font-family: var(--serif); font-style: italic; }
.nav { display: flex; flex-wrap: wrap; gap: 1.25rem; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; }
.nav a { text-decoration: none; }
.hero { padding: clamp(5rem, 13vw, 10rem) 0 clamp(4rem, 9vw, 7rem); border-bottom: 1px solid var(--rule); }
.eyebrow { margin: 0 0 1.25rem; color: var(--moss-dark); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; font-family: var(--serif); font-weight: 400; line-height: 1.02; letter-spacing: -0.045em; }
h1 { max-width: 900px; margin-bottom: 2rem; font-size: clamp(3.3rem, 9vw, 7.6rem); }
h2 { font-size: clamp(2.3rem, 5vw, 4.2rem); }
h3 { font-size: 1.7rem; }
.lede { max-width: 680px; margin: 0; font-size: clamp(1rem, 2vw, 1.2rem); }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0.8rem 1.15rem; border: 1px solid var(--ink); color: var(--cream); background: var(--ink); font: inherit; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em; text-decoration: none; text-transform: uppercase; cursor: pointer; }
.button:hover { color: var(--ink); background: transparent; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.button.secondary { color: var(--ink); background: transparent; }
.button.secondary:hover { color: var(--cream); background: var(--ink); }
.section { padding: clamp(4rem, 9vw, 7rem) 0; border-bottom: 1px solid var(--rule); }
.section-heading { display: grid; grid-template-columns: minmax(160px, 0.45fr) 1fr; gap: 2rem; margin-bottom: 3rem; }
.section-heading h2 { margin-bottom: 0; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); }
.card { min-height: 260px; padding: 2rem; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.card-number { display: block; margin-bottom: 3rem; color: var(--moss-dark); font-size: 0.72rem; }
.card p { font-size: 0.88rem; }
.docs-layout { display: grid; grid-template-columns: 240px minmax(0, 760px); gap: clamp(2rem, 7vw, 6rem); align-items: start; }
.toc { position: sticky; top: 2rem; padding: 1.25rem; border: 1px solid var(--rule); font-size: 0.8rem; }
.toc strong { display: block; margin-bottom: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; }
.toc a { display: block; padding: 0.25rem 0; }
.prose section { margin-bottom: 4rem; scroll-margin-top: 2rem; }
.prose h2 { padding-bottom: 0.75rem; border-bottom: 1px solid var(--rule); font-size: clamp(2rem, 4vw, 3.2rem); }
.prose h3 { margin-top: 2.3rem; }
.prose code { padding: 0.12rem 0.32rem; background: var(--paper-deep); font-family: var(--mono); font-size: 0.9em; }
.note { margin: 1.5rem 0; padding: 1.25rem; border-left: 4px solid var(--moss); background: var(--paper-deep); }
.form-wrap { max-width: 760px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.field { margin-bottom: 1.25rem; }
.field.full { grid-column: 1 / -1; }
label, legend { display: block; margin-bottom: 0.45rem; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
input, select, textarea { width: 100%; min-height: 48px; padding: 0.8rem; border: 1px solid var(--rule); border-radius: 0; color: var(--ink); background: var(--cream); font: inherit; }
textarea { min-height: 220px; resize: vertical; }
.hint { margin: 0.35rem 0 0; color: var(--moss-dark); font-size: 0.72rem; }
.status { min-height: 1.6rem; margin: 1rem 0; font-weight: 700; }
.status[data-kind="error"] { color: #8b241f; }
.status[data-kind="success"] { color: #2c6438; }
.site-footer { padding: 2rem 0; }
.site-footer .shell { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.74rem; }
.site-footer nav { display: flex; gap: 1rem; }

@media (max-width: 760px) {
  .site-header .shell, .site-footer .shell { align-items: flex-start; flex-direction: column; padding-block: 1.25rem; }
  .grid { grid-template-columns: 1fr; }
  .section-heading, .docs-layout, .form-grid { grid-template-columns: 1fr; }
  .toc { position: static; }
  .field.full { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}