:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #133a8a;
  background: #eef8ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: linear-gradient(180deg, #1e60d6 0 210px, #eef8ff 210px);
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 64px;
}

header {
  color: white;
  margin-bottom: 34px;
}

.brand {
  margin: 0 0 10px;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

h1 {
  margin: 0;
  max-width: 620px;
  font-size: clamp(2rem, 7vw, 3.25rem);
  line-height: 1.05;
}

.intro { max-width: 620px; line-height: 1.65; }

article {
  padding: clamp(24px, 5vw, 42px);
  border: 2px solid #9ed9ff;
  border-radius: 28px;
  background: linear-gradient(180deg, #ffffff, #e6f6ff);
  box-shadow: 0 18px 40px rgba(0, 86, 179, 0.18);
}

h2 { margin: 32px 0 10px; font-size: 1.25rem; }
h2:first-child { margin-top: 0; }
p, li { color: #27466e; line-height: 1.7; }
ul { padding-left: 22px; }
a { color: #075fc8; font-weight: 700; }

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 22px 0 8px;
}

.fact {
  padding: 16px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid #b9e5ff;
}

.fact strong { display: block; margin-bottom: 5px; }
.fact span { color: #49647f; line-height: 1.45; }

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

footer {
  margin-top: 24px;
  color: #526b87;
  font-size: 0.92rem;
  text-align: center;
}

@media (max-width: 520px) {
  body { background-size: 100% 190px; }
  main { padding-top: 34px; }
  article { border-radius: 22px; }
}