@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

@font-face {
  font-family: "Source Serif 4";
  src: url("../fonts/source-serif-4-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

@font-face {
  font-family: "Source Serif 4";
  src: url("../fonts/source-serif-4-italic-latin.woff2") format("woff2");
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
}

:root {
  --forest: #1e291b;
  --mountain: #3a4437;
  --cream: #fdfbf5;
  --cream-alt: #f3efe4;
  --earth: #514b33;
  --ochre: #9e8f72;
  --sage: #a5a79c;
  --ink: #20241d;
  --muted: #5d6259;
  --line: #d7d1c2;
  --line-strong: #aaa18d;
  --link: #31472c;
  --link-hover: #1e291b;
  --focus: #8a6f38;
  --success: #315b38;
  --warning: #7a571c;
  --danger: #843a31;
  --info: #405e65;
  --font-editorial: "Source Serif 4", Georgia, serif;
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 6rem;
  --radius-sm: 2px;
  --radius-md: 4px;
  --border: 1px solid var(--line);
  --container-wide: 82rem;
  --container-main: 74rem;
  --container-reading: 45rem;
  --shadow-float: 0 12px 30px rgb(30 41 27 / 12%);
}

* { box-sizing: border-box; }

html {
  color-scheme: light;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background:
    linear-gradient(rgb(30 41 27 / 1%) 1px, transparent 1px) 0 0 / 100% 3rem,
    var(--cream);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 1rem;
  line-height: 1.65;
}

img { max-width: 100%; }

a {
  color: var(--link);
  text-decoration-color: var(--ochre);
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.2em;
}

a:hover { color: var(--link-hover); }

:where(a, button, summary, input, select, textarea):focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.container {
  width: min(var(--container-main), calc(100% - 2rem));
  margin-inline: auto;
}

.section { padding-block: var(--space-7) var(--space-9); }

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-4);
  color: var(--forest);
  font-family: var(--font-editorial);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.06;
  text-wrap: balance;
}

h1 { font-size: clamp(2.75rem, 7vw, 5.4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.45rem, 2.5vw, 1.85rem); }
h4 { font-size: 1.25rem; }

p,
li,
dd { text-wrap: pretty; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgb(253 251 245 / 96%);
  border-bottom: 1px solid var(--line-strong);
}

.header-wrap {
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  color: var(--forest);
  text-decoration: none;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-mark {
  display: block;
  width: 3.75rem;
  height: 3.75rem;
  flex: 0 0 auto;
  object-fit: contain;
}

.brand-copy {
  display: inline-flex;
  flex-direction: column;
  line-height: 1;
}

.brand-copy > span {
  font-family: var(--font-editorial);
  font-size: 1.45rem;
  font-weight: 650;
  letter-spacing: 0.06em;
}

.brand-copy small {
  margin-top: 0.45rem;
  color: var(--earth);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.22em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.2rem, 0.8vw, 0.85rem);
}

.nav-link,
.site-search > summary,
.nav-toggle {
  min-height: 2.75rem;
  padding: 0.75rem 0.45rem;
  color: var(--forest);
  border: 0;
  background: transparent;
  font: 650 0.78rem/1 var(--font-ui);
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.nav-link { border-bottom: 2px solid transparent; }
.nav-link:hover,
.nav-link.is-active { border-bottom-color: var(--ochre); }

.nav-toggle {
  display: none;
  border: var(--border);
  border-radius: var(--radius-sm);
}

.site-search { position: relative; }
.site-search > summary { cursor: pointer; list-style: none; }
.site-search > summary::-webkit-details-marker { display: none; }

.search-panel {
  position: absolute;
  top: calc(100% + 1rem);
  right: 0;
  width: min(31rem, calc(100vw - 2rem));
  padding: var(--space-5);
  background: var(--cream);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-float);
}

.search-panel label {
  display: block;
  grid-column: 1 / -1;
  margin-bottom: var(--space-2);
  font-size: 0.82rem;
  font-weight: 700;
}

.search-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-2);
}

.search-box input {
  min-width: 0;
  min-height: 2.75rem;
  padding: 0.7rem 0.8rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font: inherit;
}

.search-results {
  display: grid;
  grid-column: 1 / -1;
  gap: var(--space-2);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs {
  margin: 0 0 var(--space-7);
  color: var(--muted);
  font-size: 0.86rem;
}

.breadcrumbs a { font-weight: 650; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 16rem;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}

.article {
  min-width: 0;
  max-width: 54rem;
}

.article > :where(p, ul, ol, dl, blockquote):not(.lead),
.article > section > :where(p, ul, ol, dl, blockquote) {
  max-width: var(--container-reading);
}

.article p,
.article li,
.article dd {
  font-family: var(--font-editorial);
  font-size: clamp(1.12rem, 1.6vw, 1.25rem);
  line-height: 1.72;
}

.article h1 { max-width: 14ch; }

.article h2 {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line-strong);
}

.article h3 { margin-top: var(--space-6); }

.lead {
  max-width: 44rem;
  margin: var(--space-5) 0 var(--space-7);
  color: var(--earth);
  font-family: var(--font-editorial);
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  line-height: 1.42;
}

.eyebrow {
  display: inline-block;
  margin-bottom: var(--space-4);
  color: var(--earth);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 2.4rem;
  margin-right: var(--space-3);
  border-top: 2px solid var(--ochre);
  vertical-align: 0.25em;
}

.editorial-figure {
  margin: var(--space-7) 0 var(--space-8);
}

.editorial-figure picture,
.editorial-figure img {
  display: block;
  width: 100%;
}

.editorial-figure img {
  height: auto;
  border-radius: var(--radius-md);
  background: var(--cream-alt);
}

.editorial-figure figcaption {
  max-width: var(--container-reading);
  padding: var(--space-3) 0 0;
  color: var(--muted);
  border-top: 1px solid var(--ochre);
  font-size: 0.79rem;
  line-height: 1.55;
}

.photo-credit { color: var(--earth); }

.sidebar {
  position: sticky;
  top: 7.5rem;
}

.toc,
.surface {
  padding: var(--space-5) 0;
  border-top: 3px solid var(--forest);
  border-bottom: var(--border);
}

.toc h3 {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.toc ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc li { margin-top: var(--space-3); }
.toc a { font-size: 0.86rem; line-height: 1.35; }

.quick-summary,
.official-box,
.related-panel,
.next-step-panel {
  margin-block: var(--space-7);
  padding: var(--space-6);
  border-left: 4px solid var(--ochre);
  background: var(--cream-alt);
}

.official-box {
  color: #fff;
  background: var(--forest);
  border-left-color: var(--ochre);
}

.official-box h2,
.official-box p,
.official-box a { color: #fff; }

.official-box h2 {
  margin-top: 0;
  padding-top: 0;
  border: 0;
}

.btn {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: 650 0.88rem/1.2 var(--font-ui);
  text-align: center;
  text-decoration: none;
}

.btn-primary {
  color: var(--cream);
  background: var(--forest);
  border-color: var(--forest);
}

.official-box .btn-primary {
  color: var(--forest);
  background: var(--cream);
  border-color: var(--cream);
}

.btn-primary:hover { color: #fff; background: var(--mountain); }
.official-box .btn-primary:hover { color: var(--forest); background: #fff; }

.btn-secondary {
  color: var(--forest);
  background: transparent;
  border-color: var(--line-strong);
}

.btn-secondary:hover { background: var(--cream-alt); }

.directory,
.decision-grid,
.visual-grid,
.next-step-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--space-6);
  margin-block: var(--space-6);
}

.directory article,
.decision-card,
.visual-card,
.next-step-grid a {
  padding: var(--space-5) 0;
  border-top: var(--border);
}

.directory article::before { display: none; }
.directory h3,
.decision-card h3,
.visual-card h3 { margin-bottom: var(--space-2); }
.directory p,
.decision-card p,
.visual-card p { margin: 0; color: var(--muted); }

.visual-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.visual-copy { padding-top: var(--space-3); }

.feature-list,
.practical-list {
  padding-left: 1.25rem;
}

.feature-list li,
.practical-list li { margin-block: var(--space-3); }
.feature-list li::marker,
.practical-list li::marker { color: var(--ochre); }

.practical-details {
  margin-block: var(--space-6);
  border-block: var(--border);
}

.practical-details summary {
  min-height: 2.75rem;
  padding: var(--space-4) 0;
  color: var(--forest);
  cursor: pointer;
  font-weight: 700;
}

.table-wrap {
  max-width: 100%;
  margin-block: var(--space-6);
  overflow-x: auto;
  border: var(--border);
  border-radius: var(--radius-sm);
}

table {
  width: 100%;
  min-width: 38rem;
  border-collapse: collapse;
  background: rgb(253 251 245 / 88%);
  font-size: 0.92rem;
}

th,
td {
  padding: 0.85rem 1rem;
  border-bottom: var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  color: #fff;
  background: var(--forest);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

tbody tr:nth-child(even) { background: var(--cream-alt); }

.related-panel h2,
.next-step-panel h2 {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
  font-size: 1.7rem;
}

.related-panel li { margin-block: var(--space-2); }

.next-step-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.next-step-grid a { display: grid; gap: var(--space-2); text-decoration: none; }
.next-step-grid span { color: var(--earth); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }
.next-step-grid strong { color: var(--forest); font-family: var(--font-editorial); font-size: 1.2rem; line-height: 1.2; }
.next-step-grid small { color: var(--muted); font-size: 0.82rem; line-height: 1.45; }

.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 90;
  height: 3px;
  pointer-events: none;
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--ochre);
}

.site-footer {
  margin-top: var(--space-8);
  color: #f7f3e9;
  background: var(--forest);
  border-top: 4px solid var(--ochre);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: var(--space-7);
  padding-block: var(--space-8);
}

.site-footer h3,
.footer-brand,
.site-footer a { color: #fff; }
.footer-brand { font-family: var(--font-editorial); font-size: 1.35rem; font-weight: 650; letter-spacing: 0.04em; text-decoration: none; }
.site-footer h3 { font-family: var(--font-ui); font-size: 0.82rem; letter-spacing: 0.12em; text-transform: uppercase; }
.footer-text { max-width: 34rem; color: #d9ddcf; }
.footer-list { margin: 0; padding: 0; list-style: none; }
.footer-list li { margin-block: var(--space-2); }
.footer-bottom { padding-block: var(--space-4) var(--space-6); color: #d9ddcf; border-top: 1px solid rgb(255 255 255 / 18%); font-size: 0.82rem; }

.faq-item { padding-block: var(--space-4); border-top: var(--border); }
.faq-q { width: 100%; min-height: 2.75rem; padding: 0; color: var(--forest); background: none; border: 0; font: 700 1rem/1.4 var(--font-ui); text-align: left; cursor: pointer; }
.faq-a[hidden] { display: none; }
.ad-slot { min-height: 1px; }

@media (max-width: 68rem) {
  .brand-copy { display: none; }
  .split { grid-template-columns: minmax(0, 1fr) 14rem; gap: var(--space-7); }
}

@media (max-width: 52rem) {
  .header-wrap { min-height: 4.5rem; }
  .brand-mark { width: 3.25rem; height: 3.25rem; }
  .brand-copy { display: inline-flex; }
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    align-items: stretch;
    padding: var(--space-3) 1rem var(--space-5);
    background: var(--cream);
    border-bottom: 1px solid var(--line-strong);
  }
  .site-nav.is-open { display: grid; }
  .nav-link { display: flex; align-items: center; border-bottom: var(--border); }
  .site-search > summary { display: flex; align-items: center; }
  .search-panel { position: static; width: 100%; box-shadow: none; }
  .split { display: block; }
  .sidebar { position: static; margin-bottom: var(--space-7); }
  .toc { columns: 2; }
  .directory,
  .decision-grid,
  .visual-grid,
  .next-step-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 35rem) {
  .container { width: min(100% - 1.25rem, var(--container-main)); }
  .section { padding-block: var(--space-6) var(--space-8); }
  .brand-copy > span { font-size: 1.15rem; }
  .brand-copy small { font-size: 0.61rem; letter-spacing: 0.16em; }
  .article h2 { margin-top: var(--space-7); }
  .official-box,
  .quick-summary,
  .related-panel,
  .next-step-panel { padding: var(--space-5); }
  .search-box { grid-template-columns: 1fr; }
  .toc { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > :first-child { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

@media print {
  .site-header,
  .site-footer,
  .sidebar,
  .reading-progress,
  body { background: #fff; color: #000; }
  .container,
  .article { width: 100%; max-width: none; }
}


.footer-privacy-link {
  padding: 0;
  color: inherit;
  background: transparent;
  border: 0;
  font: inherit;
  text-align: left;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  cursor: pointer;
}
.footer-privacy-link:hover,
.footer-privacy-link:focus-visible { color: var(--forest); }