diff --git a/src/app/actions/entities.ts b/src/app/actions/entities.ts
index cbd402e..e406fe1 100644
--- a/src/app/actions/entities.ts
+++ b/src/app/actions/entities.ts
@@ -4,6 +4,16 @@ import { collectionMap, SCHEMA_MAP } from '@/lib/schema';
 import { createDocumentServer, updateDocumentServer } from './appwrite';
 import { redirect } from 'next/navigation';
 import { revalidatePath } from 'next/cache';
+import { z } from 'zod';
+import DOMPurify from 'isomorphic-dompurify';
+
+// Re-usable rich text validator
+const safeHtmlSchema = z.string().transform(html => 
+  DOMPurify.sanitize(html, {
+    ADD_TAGS: ['iframe'],
+    ADD_ATTR: ['allow', 'allowfullscreen', 'frameborder', 'scrolling']
+  })
+);
 
 /**
  * Centralized action to create a new entity document
@@ -31,6 +41,11 @@ export async function saveEntityAction(entity: string, formData: FormData) {
     data.estado = data.estado.toLowerCase();
   }
 
+  // Zod XSS Sanitization & Strict Types
+  if (entity === 'posts' && data.contenido) {
+     data.contenido = safeHtmlSchema.parse(data.contenido);
+  }
+
   const res = await createDocumentServer(collectionId, data);
   if (res.success) {
     revalidatePath(`/dashboard/${entity}`);
@@ -66,6 +81,11 @@ export async function updateEntityAction(entity: string, id: string, formData: F
     data.estado = data.estado.toLowerCase();
   }
 
+  // Zod XSS Sanitization & Strict Types
+  if (entity === 'posts' && data.contenido) {
+     data.contenido = safeHtmlSchema.parse(data.contenido);
+  }
+
   const res = await updateDocumentServer(collectionId, id, data);
   if (res.success) {
     revalidatePath(`/dashboard/${entity}`);
diff --git a/src/app/dashboard/[entity]/page.tsx b/src/app/dashboard/[entity]/page.tsx
index bcecf13..04d110a 100644
--- a/src/app/dashboard/[entity]/page.tsx
+++ b/src/app/dashboard/[entity]/page.tsx
@@ -22,8 +22,8 @@ export default async function EntityPage({
   const q = sParams.q || '';
   const page = Number(sParams.page) || 1;
   const sort = sParams.sort || '$createdAt';
-  const dir = sParams.dir === 'asc' ? 'asc' : 'desc';
-  const limit = entity === 'posts' ? 12 : 15;
+  const dir: 'asc' | 'desc' = sParams.dir === 'asc' ? 'asc' : 'desc';
+  const limit: number = entity === 'posts' ? 12 : 15;
   const offset = (page - 1) * limit;
 
   const collectionId = collectionMap[entity];
@@ -169,25 +169,44 @@ export default async function EntityPage({
         />
       )}
 
-      {total > limit && (
-        <div className="flex justify-center items-center gap-4 mt-8">
-          <Link
-            href={`/dashboard/${entity}?page=${page - 1}${q ? `&q=${q}` : ''}${sort ? `&sort=${sort}` : ''}${dir ? `&dir=${dir}` : ''}`}
-            className={`px-6 py-2 rounded-full font-bold text-sm transition-all border border-slate-800 ${page <= 1 ? 'opacity-30 pointer-events-none bg-slate-900' : 'bg-slate-900 text-white hover:border-cyan-500'}`}
-          >
-            ANTERIOR
-          </Link>
-          <span className="text-slate-400 font-bold tracking-widest text-xs uppercase text-center px-4">
-            Página {page} de {Math.ceil(total / limit)}
-          </span>
-          <Link
-            href={`/dashboard/${entity}?page=${page + 1}${q ? `&q=${q}` : ''}${sort ? `&sort=${sort}` : ''}${dir ? `&dir=${dir}` : ''}`}
-            className={`px-6 py-2 rounded-full font-bold text-sm transition-all border border-slate-800 ${page >= Math.ceil(total / limit) ? 'opacity-30 pointer-events-none bg-slate-900' : 'bg-slate-900 text-white hover:border-cyan-500'}`}
-          >
-            SIGUIENTE
-          </Link>
-        </div>
-      )}
+      {total > limit && (() => {
+        const totalPages = Math.ceil(total / limit);
+        return (
+          <div className="flex justify-center items-center gap-2 mt-8 flex-wrap">
+            <Link
+              href={`/dashboard/${entity}?page=1${q ? `&q=${q}` : ''}${sort ? `&sort=${sort}` : ''}${dir ? `&dir=${dir}` : ''}`}
+              className={`px-4 py-2 rounded-xl font-bold text-xs transition-all border border-slate-800 ${page <= 1 ? 'opacity-30 pointer-events-none bg-slate-900' : 'bg-slate-900 text-white hover:border-cyan-500'}`}
+              title="Ir a la primera página"
+            >
+              &laquo; INICIO
+            </Link>
+            <Link
+              href={`/dashboard/${entity}?page=${page - 1}${q ? `&q=${q}` : ''}${sort ? `&sort=${sort}` : ''}${dir ? `&dir=${dir}` : ''}`}
+              className={`px-5 py-2 rounded-xl font-bold text-sm transition-all border border-slate-800 ${page <= 1 ? 'opacity-30 pointer-events-none bg-slate-900' : 'bg-slate-900 text-white hover:border-cyan-500'}`}
+            >
+              ANTERIOR
+            </Link>
+            
+            <span className="text-slate-400 font-bold tracking-widest text-[10px] md:text-xs uppercase text-center px-2 md:px-4 bg-slate-900 py-2 rounded-xl border border-slate-800">
+              Página {page} de {totalPages}
+            </span>
+            
+            <Link
+              href={`/dashboard/${entity}?page=${page + 1}${q ? `&q=${q}` : ''}${sort ? `&sort=${sort}` : ''}${dir ? `&dir=${dir}` : ''}`}
+              className={`px-5 py-2 rounded-xl font-bold text-sm transition-all border border-slate-800 ${page >= totalPages ? 'opacity-30 pointer-events-none bg-slate-900' : 'bg-slate-900 text-white hover:border-cyan-500'}`}
+            >
+              SIGUIENTE
+            </Link>
+            <Link
+              href={`/dashboard/${entity}?page=${totalPages}${q ? `&q=${q}` : ''}${sort ? `&sort=${sort}` : ''}${dir ? `&dir=${dir}` : ''}`}
+              className={`px-4 py-2 rounded-xl font-bold text-xs transition-all border border-slate-800 ${page >= totalPages ? 'opacity-30 pointer-events-none bg-slate-900' : 'bg-slate-900 text-white hover:border-cyan-500'}`}
+              title="Ir a la última página"
+            >
+              FINAL &raquo;
+            </Link>
+          </div>
+        );
+      })()}
     </div>
   );
 }
diff --git a/src/components/dashboard/MediaGridSelector.tsx b/src/components/dashboard/MediaGridSelector.tsx
index ef296e9..eab21f3 100644
--- a/src/components/dashboard/MediaGridSelector.tsx
+++ b/src/components/dashboard/MediaGridSelector.tsx
@@ -171,9 +171,7 @@ export const MediaGridSelector = ({
                         }`}
                         >
                         <img src={url} alt={item.titulo} className="w-full h-full object-cover transition-transform group-hover:scale-110" loading="lazy" />
-                        <div className="absolute inset-0 bg-gradient-to-t from-slate-950/90 via-transparent to-transparent opacity-0 group-hover:opacity-100 transition-opacity p-3 flex flex-col justify-end">
-                            <span className="text-[10px] font-black text-white uppercase truncate drop-shadow-lg">{item.titulo}</span>
-                        </div>
+                        <div className="absolute inset-0 bg-gradient-to-t from-cyan-500/20 via-transparent to-transparent opacity-0 group-hover:opacity-100 transition-opacity pointer-events-none" />
                         {value === item.file_id && (
                             <div className="absolute top-2 right-2 bg-cyan-500 text-white rounded-full p-1 shadow-lg">
                             <CheckCircle2 size={16} />
diff --git a/src/components/dashboard/RichTextEditor.tsx b/src/components/dashboard/RichTextEditor.tsx
index 40fbe27..3c2ff5e 100644
--- a/src/components/dashboard/RichTextEditor.tsx
+++ b/src/components/dashboard/RichTextEditor.tsx
@@ -250,11 +250,17 @@ export const RichTextEditor = ({ value, onChange, label }: RichTextEditorProps)
     },
     editorProps: {
       attributes: {
-        class: 'prose prose-invert max-w-none focus:outline-none min-h-[300px] p-6 text-slate-200 leading-relaxed',
+        class: 'prose prose-invert max-w-none focus:outline-none min-h-[300px] p-6 text-slate-200 leading-relaxed custom-scrollbar',
       },
     },
   });
 
+  const [mounted, setMounted] = useState(false);
+
+  useEffect(() => {
+    setMounted(true);
+  }, []);
+
   // Keep content synced if value changes externally
   useEffect(() => {
     if (editor && value !== editor.getHTML()) {
@@ -262,12 +268,23 @@ export const RichTextEditor = ({ value, onChange, label }: RichTextEditorProps)
     }
   }, [value, editor]);
 
+  if (!mounted) {
+    return (
+      <div className="flex flex-col gap-2">
+         <label className="text-sm font-bold tracking-widest text-slate-300 uppercase">{label}</label>
+         <div className="h-[400px] bg-slate-900 animate-pulse rounded-2xl border border-slate-800" />
+      </div>
+    );
+  }
+
   return (
     <div className="flex flex-col gap-2">
       <label className="text-sm font-bold tracking-widest text-slate-300 uppercase">{label}</label>
-      <div className="bg-slate-950 border border-slate-800 rounded-2xl overflow-hidden focus-within:border-cyan-500/50 transition-all shadow-xl">
+      <div className="bg-slate-950 border border-slate-800 rounded-2xl overflow-hidden focus-within:border-cyan-500/50 transition-all shadow-xl flex flex-col max-h-[600px]">
         <MenuBar editor={editor} />
-        <EditorContent editor={editor} />
+        <div className="overflow-y-auto custom-scrollbar flex-1">
+            <EditorContent editor={editor} />
+        </div>
       </div>
       {/* Hidden input for form submission if needed, though we use controlled value */}
       <input type="hidden" name={label.toLowerCase().replace(/ /g, '_')} value={value} />
diff --git a/src/components/publications/PublicationLayout.tsx b/src/components/publications/PublicationLayout.tsx
index ce14fc9..aeb077e 100644
--- a/src/components/publications/PublicationLayout.tsx
+++ b/src/components/publications/PublicationLayout.tsx
@@ -266,8 +266,8 @@ export const PublicationLayout: React.FC<PublicationLayoutProps> = ({
                     defaultValue={initialData?.resumen_redes || ''}
                     placeholder="Resumen corto para compartir en redes sociales..."
                     maxLength={500}
-                    className={textareaClass}
-                    style={{ minHeight: '80px' }}
+                    className={`${textareaClass} custom-scrollbar resize-none`}
+                    style={{ minHeight: '80px', maxHeight: '150px', overflowY: 'auto' }}
                   />
                 </FieldWrapper>
               </FormSection>