if (onRetry != null) ...[
  SizedBox(height: screenHeight * 0.025),
  Material(
    color: Colors.transparent,
    child: InkWell(
      onTap: onRetry,
      borderRadius: BorderRadius.circular(12),
      splashColor: Colors.transparent,
      highlightColor: Colors.transparent,
      child: Container(
        padding: const EdgeInsets.symmetric(
          horizontal: 18,
          vertical: 10,
        ),
        decoration: AppSurfaceStyles.card(
          context,
          backgroundColor: Theme.of(context).scaffoldBackgroundColor,
          radius: 12,
          isHighlighted: true,
        ).copyWith(
          boxShadow: [
            BoxShadow(
              color: Colors.grey.withOpacity(
                Theme.of(context).brightness == Brightness.dark ? 0.25 : 0.15,
              ), // ✅ neutral gray shadow
              blurRadius: 8,
              offset: const Offset(0, 3),
            ),
          ],
        ),
        child: Row(
          mainAxisSize: MainAxisSize.min,
          children: [
            Icon(
              Icons.refresh,
              size: 18,
              color: Theme.of(context).brightness == Brightness.dark
                  ? Colors.white
                  : Colors.black,
            ),
            const SizedBox(width: 8),
            Text(
              'Retry',
              style: Theme.of(context).textTheme.titleMedium?.copyWith(
                    fontWeight: FontWeight.w600,
                    color: Theme.of(context).brightness == Brightness.dark
                        ? Colors.white
                        : Colors.black,
                  ),
            ),
          ],
        ),
      ),
    ),
  ),
],