:root {
  --ink: #1b2a33;
  --muted: #55656f;
  --bg: #ffffff;
  --soft: #f4f8f9;
  --line: #dde6ea;
  --brand: #0f6e7a;
  --brand-dark: #0a4f58;
  --accent: #f2a93b;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

a { color: var(--brand); }
a:hover { color: var(--brand-dark); }

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

header.site {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  display: inline-block;
}

nav a {
  margin-left: 18px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

nav a:hover, nav a.active { color: var(--brand); }

.hero {
  background: var(--soft);
  padding: 64px 0 56px;
}

.hero h1 {
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  line-height: 1.15;
  margin: 0 0 16px;
}

.hero p {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 640px;
  margin: 0 0 24px;
}

.button {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}

.button:hover { background: var(--brand-dark); color: #fff; }

.button.secondary {
  background: transparent;
  color: var(--brand);
  border: 1px solid var(--brand);
  margin-left: 8px;
}

.button.secondary:hover { background: var(--soft); color: var(--brand-dark); }

section { padding: 48px 0; }

section h2 { margin-top: 0; font-size: 1.6rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  background: var(--bg);
}

.card h3 { margin-top: 0; }

.tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  background: #fdf0d8;
  color: #8a5a00;
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

dl.facts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 24px;
  margin: 0;
}

dl.facts dt { font-weight: 600; }
dl.facts dd { margin: 0; color: var(--muted); }

@media (max-width: 520px) {
  dl.facts { grid-template-columns: 1fr; gap: 0; }
  dl.facts dd { margin-bottom: 12px; }
  .button.secondary { margin-left: 0; margin-top: 10px; }
}

.page { padding: 48px 0 64px; }
.page h1 { margin-top: 0; font-size: 2rem; }
.page h2 { font-size: 1.25rem; margin-top: 32px; }
.page .updated { color: var(--muted); font-size: 0.95rem; }

footer.site {
  border-top: 1px solid var(--line);
  background: var(--soft);
  padding: 28px 0;
  font-size: 0.92rem;
  color: var(--muted);
}

footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 32px;
}

footer.site a { color: var(--muted); margin-right: 16px; }
footer.site a:hover { color: var(--brand); }