:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #1d2433;
  --muted: #5b667f;
  --accent: #2f6fff;
  --border: #e5eaf5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 64px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

h2 {
  margin-top: 28px;
  margin-bottom: 8px;
  font-size: 19px;
}

p {
  margin: 8px 0;
}

ul {
  margin: 8px 0;
  padding-left: 20px;
}

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

a:hover {
  text-decoration: underline;
}

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

.nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0 0 20px;
}

.nav a {
  padding: 8px 12px;
  background: #eef3ff;
  border-radius: 999px;
  font-size: 14px;
}

.breadcrumb {
  margin: 0 0 20px;
}

.breadcrumb-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-list li + li::before {
  content: '›';
  color: var(--muted);
}