.tabs {
  margin-bottom: 20px;
}

.tab-button {
  padding: 10px 18px;
  border: none;
  border-radius: 12px;
  background-color: #e0e0e0;
  cursor: pointer;
  font-weight: bold;
  margin: 0 5px;
}

.tab-button.active {
  background-color: #007bff;
  color: white;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}


body {
  font-family: sans-serif;
  background: #f5f5f5;
  text-align: center;
  padding: 20px;
}


h1 {
  margin-bottom: 25px;
}

#selectAllButton {
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  background-color: #66bb6a;
  color: white;
  transition: background-color 0.2s;
}
#selectAllButton:hover {
  background-color: #57a65a;
}

#resetButton {
  padding: 10px 20px;
  font-size: 16px;
  margin-left: 5px;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  background-color: #ff6666;
  color: white;
  transition: background-color 0.2s;
}
#resetButton:hover {
  background-color: #e05555;
}

#invertButton {
  padding: 10px 20px;
  font-size: 16px;
  margin-left: 5px;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  background-color: #ff9800; 
  color: white;
  transition: background-color 0.2s;
}
#invertButton:hover {
  background-color: #e68a00; 
}

#importButton {
  padding: 10px 20px;
  font-size: 16px;
  margin-left: 5px;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  background-color: #9c27b0;
  color: white;
  transition: background-color 0.2s;
}
#importButton:hover {
  background-color: #7b1fa2;
}

#captureButton {
  padding: 10px 20px;
  font-size: 16px;
  margin-left: 5px;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  background-color: #00CCFF;
  color: white;
  transition: background-color 0.2s;
}
#captureButton:hover {
  background-color: #0099CC;
}

.category {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin: 5px auto !important;
  gap: 5px;
  width: fit-content;
}

.category-header {
width: 50px; 
  flex-shrink: 0;
  display: flex;
  justify-content: center;
}

.category-icon {
  width: 45px;
  border-radius: 50%;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 45px) !important;
  gap: 2px !important;
  width: 800px; 
  justify-content: start;
  text-align: left;
}

.image-grid img {
  width: 45px;
  height: 45px;
  object-fit: cover;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid #ccc;
  transition: transform 0.1s, border-color 0.2s;
}

.image-grid img:hover {
  transform: scale(1.05);
  border-color: #666;
}

.hair-category {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin: 5px auto !important;
  gap: 5px;
  width: fit-content;
}

.hair-category .category-header {
  width: 50px;
  flex-shrink: 0;
  display: flex;
  justify-content: center;
}

.hair-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 45px) !important;
  gap: 2px !important; 
  width: 615px;
  justify-content: start;
}

.hair-grid img {
  width: 45px;
  height: 45px;
  border-radius: 4px;
  border: 1px solid #ccc;
}

.button-container {
  margin-bottom: 20px;
}

.unit-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  padding: 10px;
}

.unit-group {
  background: #ffffff;
  padding: 10px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  width: 400px; 
  display: flex;
  flex-direction: column;
  align-items: center;
}

.unit-group .category {
  display: flex;
  align-items: center;
  width: 100%;
  margin-bottom: 10px;
  gap: 5px;
}

.unit-group .image-grid {
  display: grid;
  grid-template-columns: repeat(7, 45px) !important; 
  gap: 4px !important;
  justify-content: start;
}

.unit-group .image-grid img {
  width: 45px !important;
  height: 45px !important;
  border-radius: 4px;
}

.unit-group .category-icon {
  width: 40px;
  height: 40px;
}