:root {
  --bg: #f4f1ea;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-strong: #ffffff;
  --text: #1f2a2e;
  --muted: #55656d;
  --line: rgba(31, 42, 46, 0.12);
  --accent: #0e6a67;
  --accent-dark: #0a4e4b;
  --sand: #d8c3a5;
  --max: 72rem;
  --radius: 22px;
  --shadow: 0 24px 70px rgba(18, 40, 46, 0.1);
  --font-sans: "Manrope", "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(216, 195, 165, 0.48), transparent 32%),
    radial-gradient(circle at top right, rgba(14, 106, 103, 0.16), transparent 28%),
    linear-gradient(180deg, #fcfbf8 0%, var(--bg) 100%);
  line-height: 1.7;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

img {
  max-width: 100%;
  display: block;
}

.skip-link {
  position: absolute;
  left: -9999px;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 1000;
  background: var(--surface-strong);
  padding: 0.75rem 1rem;
  border-radius: 999px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(252, 251, 248, 0.82);
  border-bottom: 1px solid var(--line);
}

.header-inner,
.hero,
.page-section,
.site-footer-inner {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  display: grid;
  place-items: center;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
}

.brand-text strong,
h1,
h2,
h3 {
  font-family: var(--font-display);
}

.brand-text small {
  display: block;
  color: var(--muted);
}

.menu-toggle {
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
  border-radius: 999px;
  padding: 0.75rem 1rem;
  font: inherit;
}

.site-nav {
  display: none;
  width: 100%;
}

.site-nav.is-open {
  display: block;
}

.site-nav ul {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.site-nav a {
  text-decoration: none;
  color: inherit;
  font-weight: 600;
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
}

.hero-wrap {
  padding: 4rem 0 2rem;
}

.hero {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(14, 106, 103, 0.09);
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 0.98;
  max-width: 12ch;
}

.lede {
  max-width: 62ch;
  font-size: 1.08rem;
  color: var(--muted);
}

.hero-card,
.callout,
.definition-box,
.faq-item,
.table-like,
.page-nav,
.related-links {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.35rem;
}

.hero-card p,
.definition-box p,
.callout p,
.faq-item p,
.table-like p {
  margin-top: 0;
}

.page-section {
  padding: 1.5rem 0 2rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.grid.three {
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

.card {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.25rem;
}

.card h3,
.page-section h2 {
  margin-top: 0;
}

.page-section h2 {
  margin-bottom: 0.7rem;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.page-section h3 {
  font-size: 1.15rem;
}

.definition-box,
.callout,
.page-nav,
.related-links,
.faq-item,
.table-like {
  padding: 1.25rem;
}

.definition-box strong,
.callout strong {
  color: var(--accent-dark);
}

.key-points {
  padding-left: 1.15rem;
}

.key-points li + li {
  margin-top: 0.5rem;
}

.kicker {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  font-weight: 800;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0;
  list-style: none;
}

.pill-list li {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(14, 106, 103, 0.08);
  border: 1px solid rgba(14, 106, 103, 0.12);
  font-weight: 600;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 3rem;
  background: rgba(255, 255, 255, 0.55);
}

.site-footer-inner {
  padding: 1.5rem 0 3rem;
  color: var(--muted);
}

.site-footer-inner p {
  margin: 0.35rem 0;
}

@media (min-width: 860px) {
  .menu-toggle {
    display: none;
  }

  .site-nav {
    display: block;
    width: auto;
  }

  .site-nav ul {
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 1.25rem;
  }

  .hero {
    grid-template-columns: minmax(0, 1.35fr) minmax(17rem, 0.8fr);
  }
}