/* Shared file upload dropzone — used by Workflow and Vault Config viewers */

.nti-file-dropzone-host {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  padding: 20px;
}

.nti-file-dropzone,
.nti-drop-zone {
  width: min(760px, calc(100% - 40px));
  min-height: 220px;
  margin: 0 auto;
  padding: 48px 32px;
  text-align: center;
  border: 2px dashed #94a3b8;
  border-radius: 14px;
  background: var(--nti-color-surface, #fff);
  color: var(--nti-color-muted);
  cursor: pointer;
  transition:
    border-color 0.15s ease,
    background-color 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;
}

.nti-file-dropzone:hover,
.nti-drop-zone:hover,
.nti-file-dropzone:focus-visible,
.nti-drop-zone:focus-visible,
.nti-file-dropzone.is-drag-over,
.nti-drop-zone.is-drag-over,
.nti-file-dropzone.drag-over,
.nti-drop-zone.drag-over {
  border-color: var(--nti-color-primary, #2563eb);
  background: #eff6ff;
  outline: none;
}

.nti-file-dropzone.is-drag-over,
.nti-drop-zone.is-drag-over,
.nti-file-dropzone.drag-over,
.nti-drop-zone.drag-over {
  background: #dbeafe;
  box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.16);
  transform: scale(1.01);
}

.nti-file-dropzone:focus-visible,
.nti-drop-zone:focus-visible {
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.nti-file-dropzone.uploading,
.nti-drop-zone.uploading {
  cursor: progress;
  opacity: 0.8;
}

.nti-file-dropzone-icon {
  font-size: 44px;
  line-height: 1;
  color: var(--nti-color-primary, #2563eb);
  margin-bottom: 12px;
}

.nti-file-dropzone-title {
  margin: 0 0 12px;
  color: var(--nti-color-muted);
  font-size: var(--nti-font-size-lg);
  font-weight: 600;
  line-height: 1.3;
}

.nti-file-dropzone-description,
.nti-file-dropzone-meta {
  margin: 8px 0;
  color: var(--nti-color-muted);
  font-size: var(--nti-font-size-sm);
  font-weight: 400;
  line-height: 1.5;
}

.nti-file-dropzone-requirements {
  max-width: 620px;
  margin: 12px auto 0;
  color: var(--nti-color-muted);
  font-size: var(--nti-font-size-sm);
  line-height: var(--nti-line-height);
}

@media (max-width: 768px) {
  .nti-file-dropzone,
  .nti-drop-zone {
    width: calc(100% - 24px);
    padding: 32px 20px;
    min-height: 180px;
  }

  .nti-file-dropzone-title {
    font-size: var(--nti-font-size-lg, 18px);
  }
}