:root {
  --primary-blue: #00b7ff;
  --primary-glow: #4ddcff;
  --dark-blue: #021422;
  --light-gray: #f5f5f5;
  --text-color: #fff;
  --font-main: 'Segoe UI', sans-serif;
}

body {
  margin: 0;
  font-family: var(--font-main);
  background: radial-gradient(circle at top, var(--dark-blue) 0%, #000 100%);
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background: linear-gradient(90deg, var(--primary-blue), var(--primary-glow));
  text-align: center;
  padding: 1rem;
  box-shadow: 0 2px 10px var(--primary-blue);
}

#chip-display {
  font-size: 1.2rem;
  margin-top: 0.5rem;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  padding: 2rem;
}

.game-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 2px solid var(--primary-blue);
  border-radius: 10px;
  padding: 2rem;
  text-align: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.game-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 20px var(--primary-glow);
}

footer {
  text-align: center;
  padding: 1rem;
}

button {
  background-color: var(--primary-blue);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 5px;
  font-size: 1rem;
  cursor: pointer;
  color: #000;
  font-weight: bold;
}

button:hover {
  background-color: var(--primary-glow);
}