:root {
  --bg-color: #121212;
  --card-bg: #1e1e1e;
  --text-color: #e0e0e0;
  --accent-color: #00bcd4;
  --hover-bg: #2c2c2c;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  text-align: center;
  padding: 2rem;
}

h1 {
  margin-bottom: 2rem;
  color: var(--accent-color);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text-color);
  transition: background-color 0.3s, transform 0.3s;
}

.card:hover {
  background-color: var(--hover-bg);
  transform: translateY(-5px);
}

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

.card p {
  margin-bottom: 0;
}