:root {
  --text: #172033;
  --muted: #5f6b7a;
  --line: #dde3ea;
  --soft: #f6f8fb;
  --accent: #2457a7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #ffffff;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

.page {
  max-width: 980px;
  margin: 0 auto;
  padding: 42px 22px 64px;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  font-size: 14px;
}

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

a:hover {
  text-decoration: underline;
}

h1 {
  margin: 0 0 12px;
  font-size: 34px;
  line-height: 1.15;
}

h2 {
  margin: 34px 0 12px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 22px;
}

h3 {
  margin: 22px 0 8px;
  font-size: 17px;
}

p {
  margin: 0 0 14px;
}

ul {
  margin-top: 8px;
  padding-left: 22px;
}

li {
  margin: 7px 0;
}

.intro {
  color: var(--muted);
  font-size: 17px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.card {
  display: block;
  min-height: 135px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.card strong {
  display: block;
  margin-bottom: 7px;
  color: var(--text);
  font-size: 16px;
}

.card span {
  color: var(--muted);
  font-size: 14px;
}

.meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.meta div {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.meta strong {
  display: block;
  margin-bottom: 4px;
}

.image-block {
  margin: 20px 0 28px;
}

.image-block img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  display: block;
}

figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.note {
  padding: 14px 16px;
  border-left: 4px solid var(--accent);
  background: var(--soft);
  color: var(--text);
}

@media (max-width: 620px) {
  .page {
    padding: 28px 16px 46px;
  }

  h1 {
    font-size: 28px;
  }
}