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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f9f9f9;
  color: #1a1a1a;
  line-height: 1.6;
}

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

header {
  margin-bottom: 40px;
}

.back {
  display: inline-block;
  color: #555;
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 16px;
}

.back:hover {
  color: #000;
}

h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.tagline {
  color: #666;
  font-size: 16px;
}

.date {
  color: #888;
  font-size: 14px;
  margin-top: 4px;
}

nav {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
}

nav a {
  color: #0066cc;
  text-decoration: none;
  font-size: 15px;
}

nav a:hover {
  text-decoration: underline;
}

section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

h2 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 8px;
  margin-bottom: -8px;
}

p {
  font-size: 15px;
  color: #333;
}

ul {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

li {
  font-size: 15px;
  color: #333;
}

a {
  color: #0066cc;
}

a:hover {
  text-decoration: underline;
}