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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #0a0a0a;
  color: #e8e8e8;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

header {
  margin-bottom: 2rem;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
}

nav {
  display: flex;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid #222;
  margin-bottom: 2rem;
}

nav a {
  color: #999;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

nav a:hover,
nav a.active {
  color: #fff;
}

main {
  min-height: 60vh;
}

h2 {
  font-size: 1.35rem;
  color: #fff;
  margin: 2rem 0 0.75rem;
}

h3 {
  font-size: 1.1rem;
  color: #ddd;
  margin: 1.5rem 0 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: #ccc;
}

ul {
  margin: 0.5rem 0 1rem 1.25rem;
  color: #ccc;
}

li {
  margin-bottom: 0.35rem;
}

a {
  color: #6cb4ee;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid #222;
  margin: 2rem 0;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #222;
  color: #555;
  font-size: 0.8rem;
}

.tagline {
  font-size: 1.15rem;
  color: #aaa;
  margin-bottom: 1.5rem;
}

@media (max-width: 480px) {
  .container {
    padding: 1.25rem 1rem;
  }
  header h1 {
    font-size: 1.5rem;
  }
  nav {
    gap: 1rem;
  }
}