:root {
  --primary-color: #6200ea;
  --secondary-color: #b388ff;
  --background: #121212;
  --surface: #1e1e1e;
  --text: #ffffff;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--background);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--surface);
  padding: 2rem;
  text-align: center;
  border-bottom: 2px solid var(--primary-color);
}

h1 {
  margin: 0;
  font-size: 2.5rem;
  color: var(--secondary-color);
}

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

.card {
  background-color: var(--surface);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  width: 250px;
  border: 1px solid #333;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(98, 0, 234, 0.3);
  border-color: var(--primary-color);
}

.card h2 {
  color: var(--secondary-color);
  margin-top: 0;
}

footer {
  text-align: center;
  padding: 1rem;
  background-color: var(--surface);
  font-size: 0.9rem;
  color: #888;
}