:root {
  --certificate-preview-max-width: min(86vw, 960px);
  --certificate-preview-max-height: 82vh;
}

.certificate-image-preview {
  position: fixed;
  z-index: 1000;
  display: none;
  pointer-events: none;
  padding: 10px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 10px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.22);
}

.certificate-image-preview.is-visible {
  display: block;
}

.certificate-image-preview img {
  display: block;
  width: auto;
  height: auto;
  max-width: var(--certificate-preview-max-width);
  max-height: var(--certificate-preview-max-height);
  object-fit: contain;
}

.certificate-card img {
  cursor: zoom-in;
}