:root {
  color-scheme: light;
  --bg: #f7f9fb;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #5d6b7a;
  --line: #d8e0e8;
  --accent: #0f6b9a;
  --accent-dark: #084866;
}

* {
  box-sizing: border-box;
}

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

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

.site-header {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.wrap {
  width: min(100% - 32px, 980px);
  margin: 0 auto;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
}

.nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
}

.hero {
  padding: 56px 0 24px;
}

.hero p {
  color: var(--muted);
  max-width: 760px;
  margin: 12px 0 0;
}

h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.12;
}

h2 {
  margin: 32px 0 10px;
  font-size: 22px;
  line-height: 1.25;
}

h3 {
  margin: 22px 0 8px;
  font-size: 18px;
}

.document {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: clamp(22px, 4vw, 40px);
  margin: 24px auto 56px;
  box-shadow: 0 12px 36px rgba(23, 32, 42, 0.06);
}

.meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  padding: 16px;
  background: #eef5f8;
  border: 1px solid #d4e5ed;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
}

ul {
  padding-left: 22px;
}

li + li {
  margin-top: 6px;
}

.notice {
  border-left: 4px solid var(--accent);
  background: #f1f8fb;
  padding: 14px 16px;
  margin: 22px 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  padding: 24px 0;
  font-size: 14px;
}

@media (max-width: 640px) {
  .site-header .wrap {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 36px;
  }
}