body {
  font-family:
    'Inter',
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  background-color: #f7f9fc;
  color: #333;
  margin: 0;
  padding: 0;
}
.container {
  max-width: 1200px;
  margin: 40px auto;
  padding: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
h1 {
  text-align: center;
  color: #2c3e50;
  margin-bottom: 20px;
  font-weight: 700;
}
.links-container {
  text-align: center;
  margin-bottom: 30px;
  padding: 15px;
  background-color: #f8f9fa;
  border-radius: 8px;
}
.links-container a {
  display: inline-block;
  margin: 0 10px;
  padding: 8px 16px;
  background-color: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  transition: background-color 0.2s;
}
.links-container a:hover {
  background-color: #0056b3;
}
.barcode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 25px;
  justify-items: center;
}
.barcode-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  background: #ffffff;
  border: 1px solid #e1e4e8;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
  transition:
    transform 0.2s,
    opacity 0.3s;
  cursor: pointer;
  width: 100%;
  box-sizing: border-box;
}
.barcode-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
}
.barcode-box img {
  max-width: 100%;
  height: auto;
  margin-bottom: 12px;
}
.barcode-name {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 6px;
  text-align: center;
  word-break: break-all;
}
.barcode-desc {
  font-size: 0.9rem;
  color: #6c757d;
  text-align: center;
  word-break: break-all;
}
.btn-container {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}
.download-btn {
  display: none;
  padding: 8px 18px;
  background-color: #28a745;
  color: #ffffff;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: background-color 0.2s, transform 0.1s;
}
.download-btn:hover {
  background-color: #218838;
  transform: scale(1.03);
}
.download-btn.open-btn {
  background-color: #007bff;
}
.download-btn.open-btn:hover {
  background-color: #0056b3;
}
.barcode-box.selected {
  border-color: #007bff;
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}
.barcode-box.selected .download-btn {
  display: inline-block;
}
/* Dimming effect for non-selected items */
.barcode-grid.has-selection .barcode-box:not(.selected) {
  opacity: 0.15;
}