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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #0a0a0a;
  color: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
}

.logo {
  width: clamp(120px, 20vw, 180px);
  height: auto;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.tagline {
  font-size: clamp(1rem, 3vw, 1.25rem);
  color: #888;
  margin-bottom: 2rem;
}

nav a {
  color: #fff;
  text-decoration: none;
  padding: 0.75rem 2rem;
  border: 1px solid #333;
  border-radius: 4px;
  transition: border-color 0.2s;
}

nav a:hover {
  border-color: #fff;
}

footer {
  padding: 2rem;
  text-align: center;
  color: #444;
  font-size: 0.875rem;
}