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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f0f0f;
  color: #e0e0e0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  max-width: 800px;
  width: 90%;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

p {
  font-size: 1.1rem;
  color: #aaa;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.card {
  background: #1a1a1a;
  border: 1px solid #333;
  border-radius: 12px;
  padding: 2rem;
  margin-top: 1.5rem;
}

.card h2 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  color: #fff;
}

code {
  background: #2a2a2a;
  padding: 0.2em 0.5em;
  border-radius: 4px;
  font-family: monospace;
  color: #667eea;
}