:root {
  color: #182233;
  background: #f4f7fb;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  margin: 0;
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 18px 56px;
  line-height: 1.62;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

a {
  color: #0b6bcb;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
  font-weight: 800;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

article {
  background: #ffffff;
  border: 1px solid #dce6f2;
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 10px 28px rgba(29, 54, 86, 0.08);
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.12;
}

h2 {
  margin-top: 30px;
  font-size: 22px;
}

ul {
  padding-left: 22px;
}

.muted {
  color: #607086;
}

@media (max-width: 640px) {
  article {
    padding: 20px;
  }
}