/* Upload Overlay Styles */
upload-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.2s ease;
}

upload-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

upload-overlay .overlay-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
}

upload-overlay .overlay-content {
  text-align: center;
  color: var(--text-primary);
  padding: 60px 80px;
  border-radius: 12px;
  border: 2px dashed var(--border-color);
  background: var(--bg-primary);
  max-width: 600px;
  transition: all 0.2s ease;
}

upload-overlay.visible .overlay-content {
  border-color: var(--accent-color);
}

upload-overlay .icon {
  font-size: 48px;
  margin-bottom: 24px;
  opacity: 0.6;
  transition: opacity 0.2s ease;
}

upload-overlay.visible .icon {
  opacity: 1;
}

/* Remove bouncing animation */
upload-overlay.uploading .icon {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

upload-overlay .message {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-primary);
}

upload-overlay .hint {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 400;
}

/* Success state - subtle green accent */
upload-overlay.success .overlay-content {
  border-color: #27ae60;
}

upload-overlay.success .message {
  color: #27ae60;
}

/* Error state - subtle red accent */
upload-overlay.error .overlay-content {
  border-color: #e74c3c;
}

upload-overlay.error .message {
  color: #e74c3c;
}

/* Uploading state */
upload-overlay.uploading .overlay-content {
  border-color: var(--accent-color);
}

upload-overlay.uploading .message {
  color: var(--accent-color);
}