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

body {
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: rgba(0, 0, 0, 0.2);
  padding: 2rem;
  text-align: center;
  color: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

main {
  flex: 1;
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
  width: 100%;
}

main p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: white;
}

.info-box {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  margin-bottom: 1.5rem;
}

.info-box p {
  color: #333;
  margin-bottom: 0.8rem;
}

.info-box p:last-child {
  margin-bottom: 0;
}

code {
  background: #f4f4f4;
  padding: 0.2em 0.5em;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

footer {
  background: rgba(0, 0, 0, 0.2);
  padding: 1.5rem;
  text-align: center;
  color: white;
  margin-top: auto;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 1.8rem;
  }

  main p {
    font-size: 1rem;
  }
}