:root {
  color-scheme: light;
  --ink: #18201c;
  --muted: #58635c;
  --line: #dce4de;
  --paper: #fbfcfa;
  --panel: #f1f5f1;
  --accent: #246b4a;
  --accent-dark: #174d35;
  --warm: #f1e6ce;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 5%, rgba(191, 218, 195, .5), transparent 28rem),
    var(--paper);
  line-height: 1.65;
}

a { color: var(--accent-dark); }

.site-header,
main,
footer {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 750;
  letter-spacing: -.02em;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--ink);
  color: white;
  font-family: ui-serif, Georgia, serif;
  font-size: 1.35rem;
}

nav { display: flex; gap: 24px; }
nav a { color: var(--muted); text-decoration: none; font-weight: 650; }
nav a:hover, nav a[aria-current="page"] { color: var(--accent-dark); }

.hero {
  min-height: 610px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: center;
  padding: 80px 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
  font-size: .78rem;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -.035em; }
h1 { margin: 0; font-size: clamp(2.7rem, 7vw, 5.8rem); max-width: 12ch; }
h2 { margin-top: 0; font-size: 1.7rem; }
h3 { margin-top: 2rem; font-size: 1.2rem; }

.lead { color: var(--muted); font-size: 1.18rem; max-width: 68ch; }
.hero .lead { max-width: 58ch; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--accent-dark);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 750;
}
.button.primary { color: white; background: var(--accent-dark); }
.button.secondary { color: var(--accent-dark); background: transparent; }

.hero-card {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  align-content: center;
  border-radius: 34%;
  color: var(--ink);
  background: var(--warm);
  box-shadow: 0 30px 80px rgba(27, 55, 38, .16);
  transform: rotate(3deg);
}
.hero-card span { font-family: ui-serif, Georgia, serif; font-size: clamp(6rem, 15vw, 10rem); line-height: 1; }
.hero-card small { margin-top: 12px; font-size: .82rem; letter-spacing: .25em; text-transform: uppercase; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-bottom: 80px;
}
.feature-grid article,
.detail-panel,
.document {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .75);
  box-shadow: 0 18px 45px rgba(27, 55, 38, .06);
}
.feature-grid article { padding: 28px; border-radius: 24px; }
.feature-grid p { margin-bottom: 0; color: var(--muted); }

.detail-panel {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 48px;
  padding: clamp(28px, 6vw, 64px);
  margin-bottom: 90px;
  border-radius: 30px;
}
.detail-panel ul { margin: 0; padding-left: 1.25rem; }
.detail-panel li + li { margin-top: 12px; }

.article-layout { max-width: 820px; padding: 70px 0 90px; }
.document { padding: clamp(28px, 7vw, 72px); border-radius: 28px; }
.document h1 { max-width: none; font-size: clamp(2.4rem, 6vw, 4.5rem); }
.document h2 { margin-top: 2.8rem; }
.document li + li { margin-top: .5rem; }
.notice { margin: 30px 0; padding: 18px 20px; border-left: 4px solid var(--accent); background: var(--panel); }

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 0 50px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 760px) {
  .site-header { min-height: 70px; }
  nav { gap: 14px; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 60px 0; }
  .hero-card { width: min(78vw, 330px); justify-self: center; }
  .feature-grid, .detail-panel { grid-template-columns: 1fr; }
  footer { display: block; }
}

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