:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --line: #e7e7e7;
  --link: #111111;
  --max: 640px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 14px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 16px 40px;
}

nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  font-size: 13px;
}

nav a {
  color: var(--text);
  text-decoration: none;
}

nav a:hover,
a:hover {
  text-decoration: underline;
}

h1 {
  font-size: 1.6rem;
  line-height: 1.1;
  margin: 0 0 12px;
}

h2 {
  font-size: 1rem;
  margin: 0 0 14px;
}

p {
  margin: 0 0 14px;
}

.section-list {
  display: grid;
  gap: 18px;
}

.item h3 {
  margin: 0 0 6px;
  font-size: 0.95rem;
  font-weight: 600;
}

.item p {
  margin: 0;
}

.links {
  display: grid;
  gap: 8px;
  padding: 0;
  list-style: none;
  margin: 0;
}

.links a,
.item h3 a {
  color: inherit;
  text-decoration: none;
}

.links a:hover,
.item h3 a:hover {
  text-decoration: underline;
}

.muted {
  color: var(--muted);
}

@media (max-width: 640px) {
  h1 {
    font-size: 1.4rem;
  }
}