:root {
  color-scheme: dark;
  --bg: #030405;
  --text: #f3f6f6;
  --body: #c4cfd0;
  --muted: #8a9c9e;
  --accent: #a6f7ea;
  --rule: rgba(166, 247, 234, 0.14);
  background: var(--bg);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: Inter, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text); text-underline-offset: 3px; }
a:hover { color: var(--accent); }

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(3, 4, 5, 0.86);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
}

.top-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.top img { height: 24px; width: auto; display: block; }

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid rgba(166, 247, 234, 0.5);
  background: rgba(3, 4, 5, 0.8);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 24px 96px;
}

.eyebrow {
  margin: 0 0 16px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0 0 12px;
  color: var(--text);
  font-size: clamp(36px, 6vw, 52px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.effective { margin: 0 0 40px; color: var(--muted); font-size: 14px; }

h2 {
  margin: 56px 0 16px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  color: var(--text);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.3;
  scroll-margin-top: 88px;
}

p { margin: 0 0 16px; }

strong { color: var(--text); font-weight: 600; }

ul, ol { margin: 0 0 20px; padding-left: 22px; }
li { margin: 0 0 8px; padding-left: 4px; }
li::marker { color: var(--accent); }

.toc {
  margin: 0 0 8px;
  padding: 20px 24px;
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: rgba(166, 247, 234, 0.03);
}

.toc p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.toc ol { margin: 0; columns: 2 220px; column-gap: 32px; }
.toc li { break-inside: avoid; margin: 0 0 6px; }
.toc a { color: var(--body); text-decoration: none; }
.toc a:hover { color: var(--accent); }

address { font-style: normal; }

footer { border-top: 1px solid var(--rule); }

.foot {
  max-width: 1240px;
  margin: 0 auto;
  padding: 40px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.foot img { height: 18px; width: auto; display: block; }
.foot nav { display: flex; gap: 28px; }
.foot a { color: var(--muted); text-decoration: none; }
.foot a:hover, .foot a[aria-current='page'] { color: var(--text); }

@media (max-width: 480px) {
  main { padding: 48px 20px 72px; }
  .top-inner, .foot { padding-left: 20px; padding-right: 20px; }
  h2 { margin-top: 44px; }
}