:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  --accent: #ff6a2a;
  --page: #f7f7fa;
  --card: #ffffff;
  --text: #17171a;
  --secondary: #5c5c65;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #111114;
    --card: #1c1c20;
    --text: #f7f7fa;
    --secondary: #b4b4be;
  }
}

body {
  background: var(--page);
  color: var(--text);
  margin: 0;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 22px 80px;
}

header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 30px;
}

.mark {
  border-radius: 13px;
  height: 52px;
  width: 52px;
}

h1, h2 { line-height: 1.15; }
h1 { margin: 0; }
h2 { margin-top: 32px; }
p, li { color: var(--secondary); }
a { color: var(--accent); }
.card {
  background: var(--card);
  border-radius: 20px;
  padding: 20px 24px;
}
footer { margin-top: 44px; font-size: 0.9rem; }
.languages {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin: -12px 0 24px;
}
.languages a[aria-current="page"] {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}