Fix hreflang canonical + LangToggle: use centralized ES/EN slug map

- Add src/i18n/hreflang-map.ts with getHreflangUrl() for translated slugs
- Fix BaseLayout.astro hreflang tags (was hardcoding ES='/', 404 URLs)
- Fix LangToggle.astro to use hreflang map instead of naive path swap
- Fix htaccess.conf: remove !-f / !-d that blocked .html redirects

scripts/htaccess.conf

@@ -12,9 +12,7 @@
   RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
   RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
 
-  # Quitar .html de la URL (limpieza opcional)
-  RewriteCond %{REQUEST_FILENAME} !-f
-  RewriteCond %{REQUEST_FILENAME} !-d
+  # Quitar .html de la URL — evita duplicados index.html vs /
   RewriteCond %{REQUEST_URI} ^(.+)\.html$ [NC]
   RewriteRule ^(.+)\.html$ /$1 [R=301,L]
 </IfModule>

src/components/LangToggle.astro

@@ -1,5 +1,6 @@
 ---
-import { LANGUAGES, DEFAULT_LANG, type Lang } from '@/i18n/utils';
+import { LANGUAGES, type Lang } from '@/i18n/utils';
+import { getHreflangUrl } from '@/i18n/hreflang-map';
 
 interface Props {
   lang: Lang;
@@ -7,19 +8,17 @@ interface Props {
 const { lang } = Astro.props;
 const path = Astro.url.pathname;
 
-function otherLangUrl(): string {
-  const cleanPath = path.replace(/^\/(en|es)/, '') || '/';
-  if (lang === DEFAULT_LANG) {
-    return `/en${cleanPath === '/' ? '' : cleanPath}`;
-  }
-  return cleanPath;
-}
+const otherLang = lang === 'en' ? 'es' : 'en';
+const fullUrl = getHreflangUrl(path, lang, otherLang);
+const href = fullUrl
+  ? fullUrl.replace('https://hostingdelsur.net', '')
+  : otherLang === 'en' ? '/en/' : '/';
 
 const other = LANGUAGES.find((l) => l.code !== lang);
 const isEn = lang === 'en';
 ---
 <a
-  href={otherLangUrl()}
+  href={href}
   hreflang={other?.code}
   class="text-xs font-semibold tracking-wider px-2.5 py-1.5 rounded border transition-colors"
   style="border-color: var(--hds-line); color: var(--hds-fg-soft);"

src/i18n/hreflang-map.ts

@@ -0,0 +1,44 @@
+import type { Lang } from './ui';
+
+const esToEnOverrides: Record<string, string | null> = {
+  '/nosotros/': '/en/about/',
+  '/contacto/': '/en/contact/',
+  '/planes/': '/en/plans/',
+  '/instructivos/': '/en/tutorials/',
+  '/legal/privacidad/': '/en/legal/privacy/',
+  '/legal/terminos/': '/en/legal/terms/',
+  '/preguntas/': null,
+};
+
+const enToEsMap: Record<string, string> = {};
+for (const [esPath, enPath] of Object.entries(esToEnOverrides)) {
+  if (enPath) enToEsMap[enPath] = esPath;
+}
+
+const SITE_URL = 'https://hostingdelsur.net';
+
+export function getHreflangUrl(
+  pathname: string,
+  currentLang: Lang,
+  targetLang: Lang
+): string | null {
+  if (currentLang === targetLang) {
+    return `${SITE_URL}${pathname}`;
+  }
+
+  if (currentLang === 'es' && targetLang === 'en') {
+    const override = esToEnOverrides[pathname];
+    if (override === null) return null;
+    if (override) return `${SITE_URL}${override}`;
+    return `${SITE_URL}/en${pathname}`;
+  }
+
+  if (currentLang === 'en' && targetLang === 'es') {
+    const override = enToEsMap[pathname];
+    if (override) return `${SITE_URL}${override}`;
+    const esPath = pathname.replace(/^\/en/, '') || '/';
+    return `${SITE_URL}${esPath}`;
+  }
+
+  return null;
+}

src/layouts/BaseLayout.astro

@@ -1,5 +1,6 @@
 ---
 import { getLangFromUrl, useTranslations, type Lang } from '@/i18n/utils';
+import { getHreflangUrl } from '@/i18n/hreflang-map';
 
 interface Props {
   title: string;
@@ -15,6 +16,8 @@ const currentLang = lang ?? getLangFromUrl(Astro.url);
 const t = useTranslations(currentLang);
 const siteUrl = Astro.site?.toString().replace(/\/$/, '') ?? 'https://hostingdelsur.net';
 const canonicalUrl = canonical ? `${siteUrl}${canonical}` : `${siteUrl}${Astro.url.pathname}`;
+const esHreflang = getHreflangUrl(Astro.url.pathname, currentLang, 'es');
+const enHreflang = getHreflangUrl(Astro.url.pathname, currentLang, 'en');
 
 import '@/styles/global.css';
 import Navbar from '@/components/Navbar.astro';
@@ -95,8 +98,8 @@ const localBusinessJsonLd = {
     <meta name="twitter:description" content={description} />
     <meta name="twitter:image" content={`${siteUrl}${ogImage}`} />
 
-    <link rel="alternate" hreflang="es" href={`${siteUrl}${currentLang === 'en' ? '/' : Astro.url.pathname.replace(/^\/en/, '')}`} />
-    <link rel="alternate" hreflang="en" href={`${siteUrl}/en${Astro.url.pathname.replace(/^\/en/, '') || ''}`} />
+    {esHreflang && <link rel="alternate" hreflang="es" href={esHreflang} />}
+    {enHreflang && <link rel="alternate" hreflang="en" href={enHreflang} />}
 
     <script type="application/ld+json" set:html={JSON.stringify(orgJsonLd)} />
     <script type="application/ld+json" set:html={JSON.stringify(localBusinessJsonLd)} />