*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  color-scheme: light;
  --background: #f8fafc;
  --surface: #ffffff;
  --text: #111827;
  --muted: #5f6b7a;
  --border: #dbe3ea;
  --accent: #365dd8;
}

body {
  background: var(--background);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

.nav {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-inner {
  align-items: center;
  display: flex;
  height: 64px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 920px;
  padding: 0 24px;
}

.brand {
  align-items: center;
  color: var(--text);
  display: inline-flex;
  font-weight: 800;
  gap: 10px;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: #111827;
  border-radius: 8px;
  color: #ffffff;
  display: inline-flex;
  font-size: 0.9rem;
  height: 32px;
  justify-content: center;
  width: 32px;
}

.nav-links {
  display: flex;
  gap: 18px;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

.container {
  margin: 0 auto;
  max-width: 920px;
  padding: 64px 24px 96px;
}

.document {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 44px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 12px;
}

.updated {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 36px;
}

h2 {
  font-size: 1.22rem;
  letter-spacing: -0.01em;
  margin: 34px 0 12px;
}

p, li {
  color: #374151;
  font-size: 0.98rem;
  margin-bottom: 14px;
}

ul {
  margin-bottom: 16px;
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

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

strong {
  color: var(--text);
}

.footer {
  border-top: 1px solid var(--border);
  color: #8a94a3;
  font-size: 0.84rem;
  padding: 28px 24px;
  text-align: center;
}

@media (max-width: 680px) {
  .nav-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    height: auto;
    padding: 16px 20px;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 12px;
  }

  .container {
    padding: 32px 16px 72px;
  }

  .document {
    border-radius: 12px;
    padding: 28px 20px;
  }
}