:root {
  --bg: #f3f0ea;
  --surface: #fffdf9;
  --surface-strong: #fffaf2;
  --line: #d8cfc2;
  --line-strong: #c4b7a5;
  --text: #1f2933;
  --muted: #5f6b76;
  --accent: #8c5a2b;
  --accent-soft: #efe2d2;
  --accent-strong: #6f441d;
  --success: #2f6b4f;
  --shadow: 0 18px 42px rgba(56, 44, 28, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Aptos, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(140, 90, 43, 0.08), transparent 28%),
    linear-gradient(180deg, #f6f1e8 0%, #f3f0ea 100%);
  line-height: 1.55;
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 20px 64px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 24px;
  padding: 14px 18px;
  background: rgba(255, 253, 249, 0.78);
  border: 1px solid rgba(196, 183, 165, 0.5);
  border-radius: 999px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 16px;
  backdrop-filter: blur(12px);
  z-index: 10;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.topnav a {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
}

.topnav a.active,
.topnav a:hover {
  color: var(--accent-strong);
  background: var(--accent-soft);
  text-decoration: none;
}

.hero {
  padding: 34px;
  margin-bottom: 28px;
  background: linear-gradient(145deg, rgba(255, 250, 242, 0.97), rgba(255, 255, 255, 0.95));
  border: 1px solid rgba(196, 183, 165, 0.55);
  border-radius: 30px;
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 14px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 12px;
  line-height: 1.15;
}

h1 {
  font-size: clamp(2rem, 3vw, 3.3rem);
  max-width: 16ch;
}

h2 {
  font-size: clamp(1.55rem, 2vw, 2.2rem);
}

h3 {
  font-size: 1.22rem;
}

h4 {
  font-size: 1.05rem;
}

.hero p,
.lede {
  max-width: 74ch;
  color: var(--muted);
  font-size: 1.03rem;
}

.hero-grid,
.grid-3,
.grid-2,
.metric-grid,
.link-grid {
  display: grid;
  gap: 18px;
}

.hero-grid,
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2,
.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.doc-card,
.metric,
.note,
.quick-links,
.cross-links,
.section-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.doc-card,
.metric,
.note,
.quick-links,
.cross-links,
.section-panel {
  padding: 20px;
}

.doc-card strong,
.metric strong {
  display: block;
  margin-bottom: 8px;
}

.doc-card p,
.metric p,
.note p,
.section-panel p {
  color: var(--muted);
}

.section {
  margin-top: 34px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 14px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button,
.button-link {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 9px 14px;
  transition: 0.2s ease;
}

button:hover,
.button-link:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  text-decoration: none;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.summary-list,
.compact-list,
.anchor-list,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.anchor-list a,
.tag-list span {
  display: inline-flex;
  padding: 8px 11px;
  border-radius: 999px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
  color: var(--muted);
}

.tag-list span.tag-strong {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.collapsible {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.84);
  overflow: hidden;
}

.collapsible[open] {
  background: var(--surface);
}

.collapsible summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
}

.collapsible summary::-webkit-details-marker {
  display: none;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.summary-copy {
  max-width: 72ch;
}

.summary-copy p {
  margin: 8px 0 0;
  color: var(--muted);
}

.caret {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-strong);
  background: var(--surface-strong);
  font-weight: 700;
}

.collapsible[open] .caret {
  transform: rotate(45deg);
}

.detail-body {
  padding: 0 20px 22px;
  border-top: 1px solid var(--line);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
  margin-top: 18px;
}

.detail-block {
  padding: 18px;
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.detail-block ul,
.detail-block ol {
  margin: 10px 0 0 18px;
}

.detail-block li + li {
  margin-top: 6px;
}

.detail-block p {
  margin: 0;
  color: var(--muted);
}

.cross-links {
  margin-top: 18px;
}

.cross-links h4,
.quick-links h4,
.note h4 {
  margin-bottom: 10px;
}

.cross-links p,
.quick-links p,
.note p {
  margin: 0;
}

.doc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.doc-links a {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.table-like {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
}

.table-like th,
.table-like td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.table-like th {
  color: var(--muted);
  font-weight: 700;
  font-size: 0.95rem;
}

.footer {
  margin-top: 42px;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 1024px) {
  .hero-grid,
  .grid-3,
  .grid-2,
  .metric-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .topbar,
  .section-head,
  .summary-row {
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .shell {
    padding: 18px 14px 44px;
  }

  .topbar {
    border-radius: 22px;
    position: static;
  }

  .hero {
    padding: 24px 20px;
    border-radius: 24px;
  }

  .collapsible summary,
  .detail-body,
  .doc-card,
  .metric,
  .note,
  .quick-links,
  .cross-links,
  .section-panel {
    padding-left: 16px;
    padding-right: 16px;
  }
}