:root {
      --bg-color: #0d1b2a;
      --card-color: #1b263b;
      --accent-color: #00b4d8;
      --text-color: #e0e1dd;
      --hover-color: #415a77;
    }

body {
  font-family: "Noto Sans TC", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

header {
  text-align: center;
  margin-top: 60px;
  margin-bottom: 40px;
}

header h1 {
  font-size: 2rem;
  letter-spacing: 1px;
  color: var(--accent-color);
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  width: 90%;
  max-width: 900px;
}

.game-card {
  background-color: var(--card-color);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: transform 0.2s ease, background-color 0.3s ease;
  cursor: pointer;
}

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

.game-card a {
  color: var(--text-color);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
}

.bmc-container {
  position: fixed;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  text-align: center;  
}

.bmc-btn {
  display: inline-block;
  background-color: #0D254D;
  color: #FFDD00;
  font-family: 'Poppins', 'Noto Sans TC', sans-serif;
  font-size: 18px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 50px;
  text-decoration: none;
  border: 2px solid #FFDD00;
  transition: all 0.25s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.bmc-btn:hover {
  background-color: #FFDD00;
  color: #0D254D;
  transform: translateY(-2px);
}

/* 行動裝置自動縮放 */
  @media (max-width: 600px) {
    .bmc-btn {
      font-size: 16px;
      padding: 10px 22px;
    }
  }


footer {
  margin-top: auto;
  padding: 20px;
  font-size: 0.9rem;
  opacity: 0.6;
}