:root {
  --teal: #1A7A6A;
  --teal-dark: #145E52;
  --teal-soft: #E4F0EE;
  --ink: #101820;
  --text: #202830;
  --muted: #68737B;
  --line: #E4E8EA;
  --bg: #F7F8F8;
  --surface: #FFFFFF;
  --shadow: 0 16px 40px rgba(16, 24, 32, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(820px, calc(100% - 36px)); margin: 0 auto; }
.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--teal); color: #fff; padding: 8px 12px;
}
.skip:focus { left: 12px; top: 12px; }
.brand-mark {
  width: 22px;
  height: 22px;
  display: block;
  object-fit: contain;
  flex: 0 0 22px;
  transform: translateY(-3px);
}
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247,248,248,0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; min-height: 70px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.18rem; color: #101820;
  letter-spacing: -0.03em; text-decoration: none;
}
.nav-links { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.nav-links a {
  color: var(--ink); font-weight: 600; font-size: 0.9rem;
  padding: 8px 12px; border-radius: 999px; text-decoration: none;
}
.nav-links a:hover { background: var(--teal-soft); text-decoration: none; }
main { padding: 28px 0 48px; }
.kicker {
  color: var(--teal); font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; font-size: 0.75rem; margin: 0 0 8px;
}
h1 { color: var(--ink); font-size: clamp(1.6rem, 4vw, 2.1rem); letter-spacing: -0.03em; margin: 0 0 8px; }
h2 { color: var(--ink); font-size: 1.15rem; margin: 28px 0 10px; }
p { margin: 0 0 12px; }
.meta { color: var(--muted); font-size: 0.95rem; margin-bottom: 22px; }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 20px; padding: 22px 22px 8px; box-shadow: var(--shadow);
}
ul { margin: 0 0 14px; padding-left: 1.15rem; }
li { margin-bottom: 6px; }
.note {
  background: var(--teal-soft); border-radius: 14px; padding: 14px 16px; margin: 16px 0 20px;
}
footer {
  border-top: 1px solid var(--line); padding: 22px 0 28px; color: var(--muted); font-size: 0.9rem;
}
.footer-links { list-style: none; margin: 0 0 10px; padding: 0; display: flex; gap: 14px; flex-wrap: wrap; }
@media (max-width: 640px) {
  .nav-links { display: none; }
}