:root {
  color-scheme: light;
  --bg: #f6f4ef;
  --surface: #ffffff;
  --text: #1a1f2e;
  --muted: #5c6475;
  --accent: #2f3d6b;
  --border: #ddd6c8;
  --rule: #cfc6b4;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", Times, serif;
  background:
    radial-gradient(ellipse at top left, rgba(47, 61, 107, 0.06), transparent 45%),
    linear-gradient(180deg, #f6f4ef 0%, #efece4 100%);
  color: var(--text);
  line-height: 1.7;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.page {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2rem 1.5rem 2.5rem;
  box-shadow: 0 1px 0 rgba(26, 31, 46, 0.04);
}

header {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1.25rem;
  margin-bottom: 1.75rem;
}

.brand {
  margin: 0 0 0.35rem;
  font-family: "Segoe UI", Tahoma, sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

h1 {
  margin: 0 0 0.75rem;
  font-family: "Segoe UI", Tahoma, sans-serif;
  font-size: clamp(1.55rem, 4vw, 1.9rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.meta {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  font-size: 0.92rem;
  color: var(--muted);
}

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

h2 {
  margin: 2rem 0 0.65rem;
  font-family: "Segoe UI", Tahoma, sans-serif;
  font-size: 1.1rem;
  line-height: 1.35;
  color: var(--accent);
  font-weight: 700;
}

p,
li {
  font-size: 1.02rem;
}

ul {
  padding-left: 1.25rem;
  margin: 0.5rem 0 1rem;
}

li + li {
  margin-top: 0.35rem;
}

a {
  color: var(--accent);
  text-underline-offset: 2px;
}

a:hover,
a:focus-visible {
  text-decoration-thickness: 2px;
}

.note {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-family: "Segoe UI", Tahoma, sans-serif;
  font-size: 0.9rem;
  color: var(--muted);
}

.hub-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
}

.hub-list li {
  margin: 0 0 0.75rem;
  font-family: "Segoe UI", Tahoma, sans-serif;
}

.hub-list a {
  display: inline-block;
  padding: 0.55rem 0;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

.hub-list a:hover,
.hub-list a:focus-visible {
  border-bottom-color: var(--accent);
}

@media (max-width: 560px) {
  main {
    padding: 1.25rem 0.9rem 3rem;
  }

  .page {
    padding: 1.4rem 1.1rem 2rem;
  }
}