feat: Add batch video export support with Export Queue and modal

src/components/brand/BrandTabMedia.tsx

@@ -1,5 +1,5 @@
 import React, { useCallback } from 'react';
-import { Film, Volume2, Music, X, Upload, Wand2 } from 'lucide-react';
+import { Film, Volume2, Music, X, Upload, Wand2, Maximize2, Minimize2, Move, Pipette } from 'lucide-react';
 import { DesignMD } from '../../types';
 import { FileDropZone } from '../ui/FileDropZone';
 
@@ -62,6 +62,10 @@ export const BrandTabMedia: React.FC<BrandTabMediaProps & { onEditAsset?: (type:
         }}
         onEdit={() => onEditAsset?.('introVideoUrl', designMD.introVideoUrl || '')}
         showEdit={!!(designMD.introVideoUrl && onEditAsset)}
+        fit={designMD.introVideoFit}
+        onFitChange={(fit) => handleDesignChange('introVideoFit', fit)}
+        bgColor={designMD.introVideoBgColor}
+        onBgColorChange={(color) => handleDesignChange('introVideoBgColor', color ?? '')}
       />
 
       {/* ═══ Outro Video ═══ */}
@@ -80,6 +84,10 @@ export const BrandTabMedia: React.FC<BrandTabMediaProps & { onEditAsset?: (type:
         }}
         onEdit={() => onEditAsset?.('outroVideoUrl', designMD.outroVideoUrl || '')}
         showEdit={!!(designMD.outroVideoUrl && onEditAsset)}
+        fit={designMD.outroVideoFit}
+        onFitChange={(fit) => handleDesignChange('outroVideoFit', fit)}
+        bgColor={designMD.outroVideoBgColor}
+        onBgColorChange={(color) => handleDesignChange('outroVideoBgColor', color ?? '')}
       />
 
       {/* ═══ Brand Audio ═══ */}
@@ -184,8 +192,13 @@ const VideoUploadSimple: React.FC<{
   onClear: () => void;
   onEdit?: () => void;
   showEdit?: boolean;
-}> = ({ label, description, videoUrl, accentColor, onUrlChange, onClear, onEdit, showEdit }) => {
+  fit?: 'cover' | 'contain' | 'fill';
+  onFitChange?: (fit: 'cover' | 'contain' | 'fill') => void;
+  bgColor?: string | null;
+  onBgColorChange?: (color: string | null) => void;
+}> = ({ label, description, videoUrl, accentColor, onUrlChange, onClear, onEdit, showEdit, fit = 'cover', onFitChange, bgColor, onBgColorChange }) => {
   const hasVideo = !!videoUrl && videoUrl.trim().length > 0;
+  const colorInputRef = React.useRef<HTMLInputElement>(null);
 
   return (
     <div className="bg-neutral-900/50 border border-neutral-800 rounded-xl p-4 space-y-3">
@@ -270,16 +283,70 @@ const VideoUploadSimple: React.FC<{
 
       {/* Status badge */}
       {hasVideo && (
-        <div
-          className="flex items-center gap-1.5 text-[10px] font-medium px-2.5 py-1 rounded-lg w-fit"
-          style={{
-            backgroundColor: `${accentColor}15`,
-            color: accentColor,
-            border: `1px solid ${accentColor}30`,
-          }}
-        >
-          <div className="w-1.5 h-1.5 rounded-full" style={{ backgroundColor: accentColor }} />
-          Video cargado
+        <div className="flex flex-col gap-3 pt-1 border-t border-neutral-800/50">
+          <div className="flex items-center gap-1">
+            <span className="text-[10px] text-neutral-500 mr-2">Ajuste de video:</span>
+            {([
+              { key: 'cover' as const, label: 'Cover', icon: <Maximize2 size={10} />, tip: 'Llenar pantalla' },
+              { key: 'contain' as const, label: 'Contain', icon: <Minimize2 size={10} />, tip: 'Mostrar completo' },
+              { key: 'fill' as const, label: 'Fill', icon: <Move size={10} />, tip: 'Estirar' },
+            ]).map(opt => (
+              <button
+                key={opt.key}
+                onClick={() => onFitChange?.(opt.key)}
+                title={opt.tip}
+                className={`flex items-center gap-1.5 px-2 py-1 rounded-md text-[9px] font-medium transition-all border ${
+                  fit === opt.key
+                    ? `border-[${accentColor}]/50 bg-[${accentColor}]/15 text-[${accentColor}]`
+                    : 'border-neutral-800 bg-neutral-900 text-neutral-400 hover:text-neutral-200'
+                }`}
+                style={fit === opt.key ? { borderColor: `${accentColor}50`, backgroundColor: `${accentColor}15`, color: accentColor } : {}}
+              >
+                {opt.icon} {opt.label}
+              </button>
+            ))}
+          </div>
+
+          {fit === 'contain' && onBgColorChange && (
+            <div className="flex items-center gap-1.5">
+              <span className="text-[10px] text-neutral-500 mr-2">Color de fondo:</span>
+              <button
+                onClick={() => colorInputRef.current?.click()}
+                title={bgColor ? `Color: ${bgColor}` : 'Seleccionar color de fondo'}
+                className="w-6 h-6 rounded border border-neutral-700 hover:border-neutral-500 transition-colors overflow-hidden flex items-center justify-center shrink-0"
+                style={{
+                  backgroundColor: bgColor || undefined,
+                  ...(!bgColor ? {
+                    backgroundImage: 'linear-gradient(45deg, #444 25%, transparent 25%), linear-gradient(-45deg, #444 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #444 75%), linear-gradient(-45deg, transparent 75%, #444 75%)',
+                    backgroundSize: '8px 8px',
+                    backgroundPosition: '0 0, 0 4px, 4px -4px, -4px 0px',
+                  } : {}),
+                }}
+              >
+                {!bgColor && <Pipette size={10} className="text-neutral-400" />}
+              </button>
+              <input
+                ref={colorInputRef}
+                type="color"
+                value={bgColor || '#000000'}
+                onChange={(e) => onBgColorChange(e.target.value)}
+                className="sr-only"
+                tabIndex={-1}
+              />
+              <button
+                onClick={() => onBgColorChange(null)}
+                className={`flex items-center gap-1 px-2 py-1 rounded-md text-[9px] font-medium transition-all border ${
+                  !bgColor
+                    ? `border-[${accentColor}]/50 bg-[${accentColor}]/15 text-[${accentColor}]`
+                    : 'border-neutral-800 bg-neutral-900 text-neutral-400 hover:text-neutral-200'
+                }`}
+                style={!bgColor ? { borderColor: `${accentColor}50`, backgroundColor: `${accentColor}15`, color: accentColor } : {}}
+              >
+                <X size={10} /> Transparente
+              </button>
+              {bgColor && <span className="text-[9px] text-neutral-500 font-mono ml-1">{bgColor}</span>}
+            </div>
+          )}
         </div>
       )}
     </div>

src/components/composition/CompositionElement.tsx

@@ -266,6 +266,7 @@ export const CompositionElement: React.FC<CompositionElementProps> = ({
             height: `${el.h ?? 100}%`,
             overflow: 'hidden',
             borderRadius: (el.w ?? 100) < 100 || (el.h ?? 100) < 100 ? 8 : 0,
+            backgroundColor: el.containBgColor || undefined,
           }}>
             {el.chromaKeyEnabled ? (
               <ChromaKeyVideo

src/components/dashboard/ProductionForm.tsx

@@ -9,6 +9,8 @@ import {
   TemplateField, BrandSource,
 } from '../../types';
 import { ExportModal } from '../export/ExportModal';
+import { BatchExportModal } from '../export/BatchExportModal';
+import { useExportQueue } from '../../context/ExportQueueContext';
 import { compileExpressToTimeline, getTemplateDuration } from '../../utils/expressCompiler';
 import { TemplateFieldInput } from '../shared/TemplateFieldInput';
 import { LivePreviewCanvas } from '../shared/LivePreviewCanvas';
@@ -94,8 +96,11 @@ export const ProductionForm: React.FC<ProductionFormProps> = ({
   // Batch mode state
   const [batchExportProgress, setBatchExportProgress] = useState<BatchExportProgress | null>(null);
   const [activeBatchPieceIndex, setActiveBatchPieceIndex] = useState(0);
+  const [showBatchExportModal, setShowBatchExportModal] = useState(false);
   const backgroundFieldId = useMemo(() => findBackgroundFieldId(template), [template]);
 
+  const { startExport } = useExportQueue();
+
   const playerRef = useRef<BradlyPlayerRef>(null);
 
   // Probe actual video durations for dynamic timeline
@@ -234,10 +239,15 @@ export const ProductionForm: React.FC<ProductionFormProps> = ({
   const handleProducePro = () => { if (validate()) onProducePro(fieldData); };
   const handleProduce = () => { if (validate()) setShowExportModal(true); };
 
-  // ─── Batch export handler ───
+  // ─── Batch export handler (Image ZIP or Open Video Modal) ───
   const handleBatchExport = useCallback(async () => {
     if (!batch.validateAll()) return;
 
+    if (template.format === 'video') {
+      setShowBatchExportModal(true);
+      return;
+    }
+
     setBatchExportProgress({ current: 0, total: batch.pieceCount, status: 'rendering' });
 
     try {
@@ -254,6 +264,77 @@ export const ProductionForm: React.FC<ProductionFormProps> = ({
     }
   }, [batch, template, brand]);
 
+  // ─── Enqueue Video Batch Jobs ───
+  const handleVideoBatchExport = useCallback(async (config: { format: 'mp4' | 'webm'; width: number; height: number; fps: number }) => {
+    setShowBatchExportModal(false);
+    
+    // Iterate over each piece, compile its timeline, and queue it
+    for (const piece of batch.pieces) {
+      // 1. Prepare field data for this piece
+      const fd: Record<string, string> = { ...piece.fieldData };
+      if (backgroundFieldId && piece.backgroundUrl) {
+        fd[backgroundFieldId] = piece.backgroundUrl;
+      }
+      
+      // 2. Compile to timeline elements
+      const compiled = compileExpressToTimeline(template, fd, designMD, brand, videoDurations);
+      
+      // 3. Apply fit overrides
+      compiled.elements = compiled.elements.map(el => {
+        const fieldId = el.sourceFieldId;
+        const fitOverride = fieldId ? mediaFits[fieldId] : undefined;
+        const bgOverride = fieldId ? containBgColors[fieldId] : undefined;
+        return {
+          ...el,
+          transitionIn: undefined,
+          transitionOut: undefined,
+          ...(fitOverride ? { objectFit: fitOverride } : {}),
+          ...(bgOverride !== undefined ? { containBgColor: bgOverride } : {}),
+        };
+      });
+      
+      // 4. Calculate actual frames based on duration
+      const totalDuration = getTemplateDuration(template, videoDurations, designMD);
+      
+      // The app's internal timeline is always calculated at a base of 30 fps
+      const BASE_FPS = 30;
+      const durationSeconds = totalDuration;
+      const actualFrames = Math.round(durationSeconds * config.fps);
+      
+      // Scale timeline elements to match selected FPS
+      const fpsScale = config.fps / BASE_FPS;
+      const scaledElements = fpsScale === 1 ? compiled.elements : compiled.elements.map(el => {
+        const scaledEl = {
+          ...el,
+          startFrame: Math.round(el.startFrame * fpsScale),
+          endFrame: Math.round(el.endFrame * fpsScale),
+        };
+        if (scaledEl.transitionIn) {
+          scaledEl.transitionIn = {
+            ...scaledEl.transitionIn,
+            duration: Math.round(scaledEl.transitionIn.duration * fpsScale)
+          };
+        }
+        return scaledEl;
+      });
+
+      // 5. Send to queue
+      await startExport({
+        format: config.format,
+        width: config.width,
+        height: config.height,
+        fps: config.fps,
+        durationInFrames: actualFrames,
+        designMD,
+        textOverlay: '',
+        timelineElements: scaledElements,
+        layers: compiled.layers,
+        brandVisibility: { logo: false, frame: false, background: true },
+        outputFormat: 'video',
+      });
+    }
+  }, [batch.pieces, template, backgroundFieldId, designMD, brand, videoDurations, mediaFits, containBgColors, startExport]);
+
   return (
     <div className="flex-1 flex overflow-hidden bg-neutral-950 relative">
       {/* Subtle grid background */}
@@ -547,15 +628,15 @@ export const ProductionForm: React.FC<ProductionFormProps> = ({
                 <button
                   onClick={handleBatchExport}
                   disabled={batch.pieceCount === 0 || (batchExportProgress?.status === 'rendering')}
-                  title={batch.pieceCount === 0 ? 'Sube fondos para comenzar' : `Generar y descargar ${batch.pieceCount} piezas como ZIP`}
+                  title={batch.pieceCount === 0 ? 'Sube fondos para comenzar' : `Generar ${batch.pieceCount} piezas`}
                   className={`flex items-center gap-1.5 px-4 py-2 rounded-lg text-[10px] font-bold transition-all shadow-lg hover:scale-[1.01] active:scale-[0.99] ${
                     batch.pieceCount > 0 && batchExportProgress?.status !== 'rendering'
                       ? 'bg-gradient-to-r from-violet-600 to-fuchsia-600 hover:from-violet-500 hover:to-fuchsia-500 text-white shadow-violet-900/30 hover:shadow-violet-900/50'
                       : 'bg-neutral-800 text-neutral-500 cursor-not-allowed shadow-none'
                   }`}
                 >
-                  <Package size={12} />
-                  Descargar ZIP ({batch.pieceCount})
+                  {template.format === 'video' ? <Zap size={12} /> : <Package size={12} />}
+                  {template.format === 'video' ? `Encolar Renders (${batch.pieceCount})` : `Descargar ZIP (${batch.pieceCount})`}
                   <ChevronRight size={10} />
                 </button>
               </>
@@ -658,6 +739,15 @@ export const ProductionForm: React.FC<ProductionFormProps> = ({
         outputFormat={template.format}
         aspectRatio={template.aspectRatio}
       />
+
+      {/* ═══ Batch Export Modal (video batch only) ═══ */}
+      <BatchExportModal
+        isOpen={showBatchExportModal}
+        onClose={() => setShowBatchExportModal(false)}
+        aspectRatio={template.aspectRatio}
+        pieceCount={batch.pieceCount}
+        onExport={handleVideoBatchExport}
+      />
     </div>
   );
 };

src/components/export/BatchExportModal.tsx

@@ -0,0 +1,192 @@
+import React, { useState, useMemo } from 'react';
+import { X, Film, Zap, Package, ChevronDown } from 'lucide-react';
+import type { RenderFormat } from '../../context/ExportQueueContext';
+
+interface BatchExportModalProps {
+  isOpen: boolean;
+  onClose: () => void;
+  aspectRatio?: string;
+  pieceCount: number;
+  onExport: (config: { format: RenderFormat; width: number; height: number; fps: number }) => void;
+}
+
+const FORMAT_OPTIONS: { value: RenderFormat; label: string; icon: typeof Film; desc: string }[] = [
+  { value: 'mp4', label: 'MP4', icon: Film, desc: 'Compatible con todo' },
+  { value: 'webm', label: 'WebM', icon: Film, desc: 'Web optimizado' },
+];
+
+const RESOLUTION_PRESETS = [
+  { label: '1080×1080', w: 1080, h: 1080, desc: 'Instagram Post', ratio: '1:1' },
+  { label: '720×720', w: 720, h: 720, desc: 'Preview rápido', ratio: '1:1' },
+  { label: '1080×1920', w: 1080, h: 1920, desc: 'Story / Reel', ratio: '9:16' },
+  { label: '720×1280', w: 720, h: 1280, desc: 'Preview rápido', ratio: '9:16' },
+  { label: '1920×1080', w: 1920, h: 1080, desc: 'YouTube / TV', ratio: '16:9' },
+  { label: '1280×720', w: 1280, h: 720, desc: 'HD 720p', ratio: '16:9' },
+  { label: '1080×1350', w: 1080, h: 1350, desc: 'Feed 4:5', ratio: '4:5' },
+  { label: '720×900', w: 720, h: 900, desc: 'Preview 4:5', ratio: '4:5' },
+  { label: '1440×1080', w: 1440, h: 1080, desc: 'Pantalla 4:3', ratio: '4:3' },
+  { label: '960×720', w: 960, h: 720, desc: 'Preview 4:3', ratio: '4:3' },
+];
+
+export const BatchExportModal: React.FC<BatchExportModalProps> = ({
+  isOpen,
+  onClose,
+  aspectRatio,
+  pieceCount,
+  onExport,
+}) => {
+  const [format, setFormat] = useState<RenderFormat>('mp4');
+  const [fps, setFps] = useState(30);
+  const [showAdvanced, setShowAdvanced] = useState(false);
+
+  // Filter resolution presets to match the template's aspect ratio
+  const filteredPresets = useMemo(() => {
+    if (!aspectRatio) return RESOLUTION_PRESETS;
+    const matching = RESOLUTION_PRESETS.filter(p => p.ratio === aspectRatio);
+    if (matching.length > 0) return matching;
+
+    // Parse custom W:H
+    const parts = aspectRatio.split(':');
+    if (parts.length === 2) {
+      const w = parseInt(parts[0], 10);
+      const h = parseInt(parts[1], 10);
+      if (!isNaN(w) && !isNaN(h)) {
+        return [{
+          label: `${w}x${h}`,
+          w: w,
+          h: h,
+          desc: 'Resolución Original',
+          ratio: aspectRatio
+        }];
+      }
+    }
+    return RESOLUTION_PRESETS;
+  }, [aspectRatio]);
+
+  const [resIdx, setResIdx] = useState(0);
+  const selectedRes = filteredPresets[resIdx] || filteredPresets[0];
+
+  if (!isOpen) return null;
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm">
+      <div className="bg-neutral-950 border border-neutral-800 rounded-2xl shadow-2xl shadow-black/80 w-[420px] flex flex-col overflow-hidden">
+        {/* Header */}
+        <div className="flex items-center justify-between px-5 py-4 border-b border-neutral-800/50">
+          <div className="flex items-center gap-3">
+            <div className="p-2 rounded-lg bg-gradient-to-br from-violet-500/20 to-fuchsia-500/20 border border-violet-500/20">
+              <Package size={18} className="text-violet-400" />
+            </div>
+            <div>
+              <h2 className="text-sm font-bold text-white">Exportación en Lote</h2>
+              <p className="text-[10px] text-neutral-500">{pieceCount} videos en cola</p>
+            </div>
+          </div>
+          <button onClick={onClose} title="Cerrar" className="p-1.5 rounded-lg hover:bg-neutral-800 transition-colors text-neutral-400 hover:text-white">
+            <X size={16} />
+          </button>
+        </div>
+
+        {/* Body */}
+        <div className="p-5 space-y-5">
+          {/* Format Selection */}
+          <div>
+            <label className="block text-[10px] font-medium text-neutral-500 uppercase tracking-wider mb-2">Formato de Video</label>
+            <div className="grid grid-cols-2 gap-2">
+              {FORMAT_OPTIONS.map(opt => {
+                const Icon = opt.icon;
+                return (
+                  <button
+                    key={opt.value}
+                    onClick={() => setFormat(opt.value)}
+                    title={opt.desc}
+                    className={`p-3 rounded-xl border transition-all flex items-center gap-2.5 ${
+                      format === opt.value
+                        ? 'bg-violet-600/15 border-violet-500/50 text-violet-300 shadow-lg shadow-violet-500/5'
+                        : 'bg-neutral-900/50 border-neutral-800 text-neutral-400 hover:border-neutral-700 hover:text-neutral-300'
+                    }`}
+                  >
+                    <Icon size={16} />
+                    <div className="text-left">
+                      <div className="text-xs font-semibold">{opt.label}</div>
+                      <div className="text-[9px] text-neutral-500">{opt.desc}</div>
+                    </div>
+                  </button>
+                );
+              })}
+            </div>
+          </div>
+
+          {/* Resolution */}
+          <div>
+            <label className="block text-[10px] font-medium text-neutral-500 uppercase tracking-wider mb-2">Resolución General</label>
+            <div className="flex flex-wrap gap-1.5">
+              {filteredPresets.map((preset, idx) => (
+                <button
+                  key={preset.label}
+                  onClick={() => setResIdx(idx)}
+                  title={preset.desc}
+                  className={`px-3 py-1.5 rounded-lg border text-[10px] font-medium transition-all ${
+                    resIdx === idx
+                      ? 'bg-violet-600/15 border-violet-500/50 text-violet-300'
+                      : 'bg-neutral-900/50 border-neutral-800 text-neutral-500 hover:border-neutral-700'
+                  }`}
+                >
+                  {preset.label}
+                </button>
+              ))}
+            </div>
+            <p className="text-[9px] text-neutral-600 mt-1">{selectedRes.desc}</p>
+          </div>
+
+          {/* Advanced Settings */}
+          <div>
+            <button
+              onClick={() => setShowAdvanced(!showAdvanced)}
+              className="flex items-center gap-1 text-[10px] text-neutral-500 hover:text-neutral-300 transition-colors"
+            >
+              <ChevronDown size={10} className={`transition-transform ${showAdvanced ? 'rotate-180' : ''}`} />
+              Opciones de Rendimiento
+            </button>
+            {showAdvanced && (
+              <div className="mt-2 bg-neutral-900/50 border border-neutral-800/50 rounded-lg p-3 space-y-3">
+                <div>
+                  <label className="block text-[10px] text-neutral-500 mb-1">FPS</label>
+                  <div className="flex gap-1.5">
+                    {[24, 30, 60].map(f => (
+                      <button
+                        key={f}
+                        onClick={() => setFps(f)}
+                        className={`px-3 py-1 rounded-md text-[10px] font-medium border transition-all ${
+                          fps === f
+                            ? 'bg-violet-600/15 border-violet-500/50 text-violet-300'
+                            : 'bg-neutral-900 border-neutral-800 text-neutral-500 hover:border-neutral-700'
+                        }`}
+                      >
+                        {f} fps
+                      </button>
+                    ))}
+                  </div>
+                </div>
+              </div>
+            )}
+          </div>
+        </div>
+
+        {/* Footer */}
+        <div className="px-5 py-4 border-t border-neutral-800/50 bg-neutral-950 flex items-center justify-between">
+          <p className="text-[10px] text-neutral-500">
+            Se agregarán a la cola de procesamiento.
+          </p>
+          <button
+            onClick={() => onExport({ format, width: selectedRes.w, height: selectedRes.h, fps })}
+            className="flex items-center gap-2 px-4 py-2 rounded-lg bg-gradient-to-r from-violet-600 to-fuchsia-600 hover:from-violet-500 hover:to-fuchsia-500 text-white text-xs font-bold transition-all shadow-lg shadow-violet-900/30"
+          >
+            <Zap size={14} />
+            Encolar {pieceCount} Videos
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+};

src/types.ts

@@ -57,8 +57,10 @@ export interface DesignMD {
 
   // Video fit & position
   introVideoFit?: 'cover' | 'contain' | 'fill';
+  introVideoBgColor?: string | null;
   introVideoPosition?: string;
   outroVideoFit?: 'cover' | 'contain' | 'fill';
+  outroVideoBgColor?: string | null;
   outroVideoPosition?: string;
   // Freeform video placement (% of canvas)
   introVideoX?: number;

src/utils/expressCompiler.ts

@@ -190,9 +190,10 @@ export function compileExpressToTimeline(
           // CompositionElement's isFullscreenBrand path reads w/h (not width/height)
           w: segW,
           h: segH,
-          objectFit: scene.segmentVideoFit || (isIntro
+          objectFit: (isIntro
             ? (designMD.introVideoFit || 'cover')
             : (designMD.outroVideoFit || 'cover')) as 'cover' | 'contain' | 'fill',
+          containBgColor: isIntro ? designMD.introVideoBgColor : designMD.outroVideoBgColor,
           layerId: 'layer-express-bg',
           isBrandElement: true,
           isLocked: true,