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

:root {
  --text: #1a1a1a;
  --text-secondary: #555;
  --bg: #fff;
  --border: #e0e0e0;
  --accent: #1a1a1a;
  --max-width: 680px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

h1 {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.last-updated {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1rem;
}

ul {
  list-style: none;
  padding: 0;
  margin-bottom: 1rem;
}

ul li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
}

ul li::before {
  content: "·";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--text-secondary);
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
}

.back-link:hover {
  color: var(--text);
}

.nav-links {
  margin-top: 2rem;
}

.nav-links a {
  display: block;
  padding: 0.75rem 0;
  border-top: 1px solid var(--border);
  text-decoration: none;
  font-weight: 500;
}

.nav-links a:last-child {
  border-bottom: 1px solid var(--border);
}

.nav-links a:hover {
  color: var(--text-secondary);
}

@media (max-width: 600px) {
  .container {
    padding: 2.5rem 1.25rem 4rem;
  }

  h1 {
    font-size: 1.5rem;
  }
}

.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.logo {
  max-width: 200px;
  width: 100%;
  height: auto;
  margin-bottom: 3rem;
}

.landing-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.landing-nav a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
}

.landing-nav a:hover {
  color: var(--text);
}