body {
  background-color: #f8f9fa;
  min-height: 100vh;
}
.upload-box {
  border: 2px dashed #dee2e6;
  border-radius: 10px;
  transition: all 0.3s ease;
}
.upload-box:hover {
  border-color: #0d6efd;
  background-color: #f8f9ff;
}
.image-preview {
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.image-preview img {
  max-height: 280px;
  object-fit: contain;
}
.hidden {
  display: none !important;
}
.spinner-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.placeholder-text {
  color: #6c757d;
  font-style: italic;
}
.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}
.file-input-hint {
  margin-top: 5px;
  color: #6c757d;
  font-style: italic;
  font-size: smaller;
}