:root {
  color-scheme: light;
  --background: #f6f7f3;
  --surface: #ffffff;
  --surface-muted: #fcfdf9;
  --surface-soft: #eef2ed;
  --text: #18231f;
  --text-secondary: #58635e;
  --text-muted: #7d7163;
  --primary: #0f5b4e;
  --primary-soft: #ddefe8;
  --secondary: #d96a4a;
  --secondary-soft: #f7e1d8;
  --accent: #b7d84b;
  --border: #e2e9e0;
  --border-strong: #d4ddd4;
  --danger: #c23b4a;
  --shadow: rgba(26, 42, 35, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

a {
  color: var(--primary);
  font-weight: 650;
  text-decoration-color: rgba(15, 91, 78, 0.32);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--secondary);
  text-decoration-color: rgba(217, 106, 74, 0.42);
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(246, 247, 243, 0.94);
}

.site-header-inner,
.page-shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0;
  text-decoration: none;
}

.brand span:first-child {
  color: var(--primary);
}

.brand span:nth-child(2) {
  color: #2f7667;
}

.brand span:last-child {
  color: var(--accent);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: flex-end;
}

.nav a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.nav a:hover {
  color: var(--primary);
}

.page-shell {
  padding: 48px 0 72px;
}

.doc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 18px 48px var(--shadow);
  overflow: hidden;
}

.doc-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface-muted);
  padding: 34px 34px 30px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--text);
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(2rem, 5vw, 3.4rem);
}

h2 {
  margin-top: 34px;
  font-size: 1.35rem;
}

h3 {
  margin-top: 24px;
  font-size: 1.05rem;
}

.updated,
.lede {
  color: var(--text-secondary);
}

.updated {
  margin: 14px 0 0;
}

.lede {
  max-width: 720px;
  margin: 18px 0 0;
  font-size: 1.06rem;
}

.doc-body {
  padding: 34px;
}

p,
li {
  font-size: 1rem;
}

p {
  margin: 16px 0 0;
}

ul,
ol {
  margin: 14px 0 0;
  padding-left: 22px;
}

li + li {
  margin-top: 8px;
}

.notice {
  margin: 24px 0 0;
  border: 1px solid #bfd8cd;
  border-radius: 8px;
  background: var(--primary-soft);
  padding: 18px 20px;
}

.notice p {
  margin: 0;
}

.page-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.page-link {
  display: block;
  min-height: 128px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-muted);
  padding: 18px;
  color: var(--text);
  text-decoration: none;
}

.page-link strong {
  display: block;
  color: var(--primary);
  font-size: 1.05rem;
}

.page-link span {
  display: block;
  margin-top: 8px;
  color: var(--text-secondary);
  font-weight: 500;
}

.footer-note {
  margin-top: 28px;
  color: var(--text-muted);
  font-size: 0.94rem;
}

@media (max-width: 680px) {
  .site-header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding: 18px 0;
  }

  .nav {
    justify-content: flex-start;
  }

  .page-shell {
    width: min(100% - 24px, 920px);
    padding: 28px 0 48px;
  }

  .doc-header,
  .doc-body {
    padding: 24px 20px;
  }
}