feat(ui): implement award mockup redesign

lib/widgets/tarjeta_emisora.dart

@@ -79,7 +79,32 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
         Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
-            AspectRatio(aspectRatio: 1, child: _logo(60)),
+            AspectRatio(
+              aspectRatio: 1,
+              child: Stack(
+                fit: StackFit.expand,
+                children: [
+                  _logo(60),
+                  DecoratedBox(
+                    decoration: BoxDecoration(
+                      gradient: LinearGradient(
+                        begin: Alignment.topCenter,
+                        end: Alignment.bottomCenter,
+                        colors: [
+                          Colors.transparent,
+                          Colors.black.withValues(alpha: 0.34),
+                        ],
+                      ),
+                    ),
+                  ),
+                  Positioned(
+                    left: t.spacingSm,
+                    bottom: t.spacingSm,
+                    child: _LiveBadge(mini: true),
+                  ),
+                ],
+              ),
+            ),
             Padding(
               padding: EdgeInsets.fromLTRB(
                 t.spacingMd,
@@ -140,9 +165,25 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
       ),
       child: Row(
         children: [
-          ClipRRect(
-            borderRadius: BorderRadius.circular(t.radiusSm),
-            child: SizedBox(width: 48, height: 48, child: _logo(24)),
+          Stack(
+            alignment: Alignment.center,
+            children: [
+              Container(
+                width: 58,
+                height: 58,
+                decoration: BoxDecoration(
+                  shape: BoxShape.circle,
+                  gradient: SweepGradient(
+                    colors: [t.electricMagenta, const Color(0xFF20E6FF), t.warmCoral, t.electricMagenta],
+                  ),
+                  boxShadow: [BoxShadow(color: t.glowColor.withValues(alpha: 0.24), blurRadius: 22)],
+                ),
+              ),
+              ClipRRect(
+                borderRadius: BorderRadius.circular(18),
+                child: SizedBox(width: 50, height: 50, child: _logo(24)),
+              ),
+            ],
           ),
           SizedBox(width: t.spacingSm),
           Expanded(
@@ -172,6 +213,8 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
               ],
             ),
           ),
+          const SizedBox(width: 8),
+          _LiveBadge(mini: false),
           _botonFavorito(mini: false),
         ],
       ),
@@ -271,6 +314,35 @@ class _TarjetaEmisoraState extends State<TarjetaEmisora> {
   }
 }
 
+class _LiveBadge extends StatelessWidget {
+  const _LiveBadge({required this.mini});
+
+  final bool mini;
+
+  @override
+  Widget build(BuildContext context) {
+    final color = Theme.of(context).colorScheme.secondary;
+    return Container(
+      padding: EdgeInsets.symmetric(horizontal: mini ? 8 : 6, vertical: mini ? 5 : 4),
+      decoration: BoxDecoration(
+        borderRadius: BorderRadius.circular(999),
+        color: Colors.black.withValues(alpha: 0.35),
+        border: Border.all(color: color.withValues(alpha: 0.48)),
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Icon(Icons.fiber_manual_record_rounded, size: mini ? 10 : 8, color: color),
+          if (mini) ...[
+            const SizedBox(width: 5),
+            Text('Live', style: Theme.of(context).textTheme.labelSmall?.copyWith(fontWeight: FontWeight.w900)),
+          ],
+        ],
+      ),
+    );
+  }
+}
+
 /// Placeholder shimmer para listas en carga.
 class TarjetaEmisoraShimmer extends StatelessWidget {
   const TarjetaEmisoraShimmer({super.key});