body {
  background-color: #111827;
  color: #f3f4f6;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  margin: 0;
  padding: 1rem;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.container {
  max-width: 960px;
  margin: 0 auto;
}

.title {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 1rem;
}

.controls {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.btn {
  background-color: #2563eb;
  color: white;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.2s ease;
  user-select: none;
}

.btn.green {
  background-color: #10b981;
}

.btn:hover {
  filter: brightness(110%);
}

.tier-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tier {
  display: flex;
  align-items: center;
  user-select: none;
  touch-action: manipulation;
}

.tier-label {
  width: 120px;
  text-align: center;
  padding: 0.5rem;
  color: white;
  font-weight: bold;
  border-top-left-radius: 0.375rem;
  border-bottom-left-radius: 0.375rem;
  cursor: pointer;
  position: relative;
  user-select: none;
}

.tier-label input {
  width: 100%;
  background: transparent;
  border: none;
  color: white;
  text-align: center;
  font-weight: bold;
  font-size: 1rem;
  user-select: auto;
}

.tier-items {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  background-color: #1f2937;
  padding: 0.5rem;
  border-top-right-radius: 0.375rem;
  border-bottom-right-radius: 0.375rem;
  min-height: 80px;
  user-select: none;
  touch-action: manipulation;
}

.item {
  width: 64px;
  height: 64px;
  object-fit: cover;
  cursor: grab;
  border: 2px solid #374151;
  border-radius: 0.375rem;
  background-color: #374151;
  color: white;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  overflow: hidden;
  position: relative;
  touch-action: manipulation;
}

.item:active {
  cursor: grabbing;
}

.item .delete-item-btn {
  position: absolute;
  top: 2px;
  right: 2px;
  background-color: #dc2626;
  border: none;
  color: white;
  font-weight: bold;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  line-height: 15px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  opacity: 0.8;
  transition: opacity 0.2s;
  display: none;
}

.item:hover .delete-item-btn,
.item:focus-within .delete-item-btn {
  display: block;
}

.delete-btn {
  margin-left: 0.5rem;
  background-color: #dc2626;
  color: white;
  padding: 0.3rem 0.6rem;
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
}

.item-pool-section h2 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.item-pool {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.5rem;
  background-color: #1f2937;
  border-radius: 0.375rem;
  min-height: 80px;
  user-select: none;
  touch-action: manipulation;
}

/* Color Picker Styling */
.color-picker {
  position: absolute;
  display: flex;
  flex-wrap: wrap;
  width: 160px;
  background: #1f2937;
  padding: 5px;
  border-radius: 0.375rem;
  gap: 5px;
  box-shadow: 0 0 5px #000;
  z-index: 1000;
}

.color-swatch {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid #fff;
  transition: transform 0.15s ease;
}

.color-swatch:hover,
.color-swatch:focus {
  transform: scale(1.2);
  outline: none;
}

/* Modal Styling */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: #1f2937;
  padding: 1.5rem;
  border-radius: 0.5rem;
  width: 320px;
  color: white;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-content input[type="text"] {
  padding: 0.5rem;
  width: 100%;
  background: #111827;
  border: 1px solid #374151;
  border-radius: 0.375rem;
  color: white;
  font-size: 1rem;
  user-select: auto;
}

.option-section label {
  margin-right: 1rem;
  cursor: pointer;
  user-select: none;
}

.modal-buttons {
  display: flex;
  justify-content: space-between;
}