*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f4f4f4;
  color: #1a1a1a;
  line-height: 1.7;
}

.nav {
  background: #1e1e1e;
  padding: 20px 24px;
}

.nav a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 20px;
}

.nav a span {
  color: #D91921;
}

.container {
  max-width: 800px;
  margin: 60px auto;
  padding: 0 24px 80px;
}

h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 8px;
}

.date {
  color: #636363;
  font-size: 14px;
  margin-bottom: 48px;
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 40px 0 12px;
  color: #000;
}

p {
  margin-bottom: 16px;
  color: #333;
}

ul {
  margin: 0 0 16px 24px;
  color: #333;
}

ul li {
  margin-bottom: 8px;
}

a {
  color: #D91921;
}

.warning {
  background: #fff3cd;
  border-left: 4px solid #ffc107;
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 4px;
}