.tier-container {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 40px auto;
  flex-wrap: wrap;
  max-width: 1000px;
}

.tier {
  padding: 20px 40px;
  border-radius: 12px;
  font-weight: bold;
  cursor: pointer;
  text-align: center;
  font-size: 18px;
  color: white;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tier:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.gold { background-color: #ffd700; color: #000; }
.silver { background-color: #c0c0c0; color: #000; }
.bronze { background-color: #a0522d; }
.basic { background-color: #00c0f3; }
.ovhc { background-color: #7ddc59; }

.popup {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background-color: rgba(0,0,0,0.5);
}

.popup-content {
  background: white;
  padding: 30px;
  border-radius: 10px;
  width: 90%;
  max-width: 500px;
  margin: 100px auto;
  position: relative;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  text-align: center;
}

.close {
  position: absolute;
  top: 15px; right: 20px;
  font-size: 28px;
  cursor: pointer;
}