:root {
  color-scheme: light;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1f2937;
  background: #f8fafc;
}

body {
  margin: 0;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 48px auto;
  padding: 32px;
  box-sizing: border-box;
  background: #ffffff;
  border: 1px solid #dbe2ea;
  border-radius: 8px;
}

h1 {
  margin: 0 0 20px;
  color: #34166f;
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 1.1;
}

h2 {
  margin-top: 32px;
  color: #2f2350;
  font-size: 1.3rem;
}

p,
li {
  line-height: 1.65;
}

.brand {
  margin: 0 0 10px;
  color: #6842b8;
  font-weight: 700;
}

.meta {
  color: #64748b;
  font-size: 0.9rem;
}

nav {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

a {
  color: #5b35a5;
}

nav a {
  padding: 14px 16px;
  border: 1px solid #c9b9e9;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 650;
}

.notice {
  padding: 16px;
  border-left: 4px solid #6842b8;
  background: #f6f1ff;
}

@media (max-width: 600px) {
  main {
    margin: 16px auto;
    padding: 22px;
  }
}