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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.7;
  color: #333;
  background-color: #fff;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 24px;
}

header {
  border-bottom: 1px solid #e5e7eb;
  padding-bottom: 20px;
  margin-bottom: 32px;
}

.app-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a1a2e;
  text-decoration: none;
  margin-bottom: 8px;
}

.app-icon {
  font-size: 1.5rem;
}

nav {
  display: flex;
  gap: 20px;
  margin-top: 12px;
}

nav a {
  color: #6366f1;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s;
}

nav a:hover,
nav a.active {
  border-bottom-color: #6366f1;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 8px;
}

.last-updated {
  color: #6b7280;
  font-size: 0.875rem;
  margin-bottom: 32px;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a1a2e;
  margin-top: 32px;
  margin-bottom: 12px;
}

p {
  margin-bottom: 16px;
  color: #4b5563;
}

ul {
  margin-bottom: 16px;
  padding-left: 24px;
}

li {
  margin-bottom: 6px;
  color: #4b5563;
}

footer {
  border-top: 1px solid #e5e7eb;
  margin-top: 48px;
  padding-top: 20px;
  padding-bottom: 32px;
  text-align: center;
  color: #9ca3af;
  font-size: 0.8rem;
}

a {
  color: #6366f1;
}

@media (max-width: 600px) {
  .container {
    padding: 16px;
  }

  h1 {
    font-size: 1.4rem;
  }

  h2 {
    font-size: 1.1rem;
  }

  nav {
    gap: 16px;
  }
}