body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #0f1115;
  color: #e4e6eb;
}

header {
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid #222;
}

h1 {
  margin: 0 0 15px 0;
  font-size: 28px;
}

.controls {
  display: flex;
  justify-content: center;
  gap: 10px;
}

input, select {
  padding: 8px 12px;
  background: #1a1d24;
  border: 1px solid #333;
  color: #fff;
  border-radius: 6px;
}

.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
  padding: 20px;
  align-items: start;
}

.item-slot {
  width: 100%;
}

.item-card {
  background: #16181d;
  border-radius: 10px;
  padding: 10px;
  cursor: pointer;
  transition: 0.2s;
  border: 1px solid transparent;
}

.item-card:hover {
  border: 1px solid #3a82f7;
  transform: scale(1.02);
}

.item-preview img {
  width: 100%;
  height: 140px;
  object-fit: contain;
}

.item-card img {
  width: 100%;
  height: 140px;
  object-fit: contain;
}

.item-name {
  font-weight: bold;
  margin-top: 8px;
}

.item-basic {
  font-size: 13px;
  color: #aaa;
}

.item-details {
  display: none;
  margin-top: 10px;
  font-size: 13px;
  border-top: 1px solid #333;
  padding-top: 8px;
}

.item-card.expanded .item-details {
  display: block;
}