diff --git a/CLAUDE.md b/CLAUDE.md
index 77710c4..a788f8b 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -29,8 +29,6 @@ Le blog contient deux types d'articles qui n'obéissent pas aux mêmes règles :
 
 ## Corrections à appliquer systématiquement
 
-N'utilise pas de tiret quadratin. Emploie de la ponctuation classique : deux-points, point-virgule, point, virgule ou encore parenthèses en dernier recours.
-
 ### 1. Pronom personnel
 
 **Dans les articles d'opinion** : remplacer le "on" par "je" quand c'est l'auteur qui parle.
diff --git a/config.yml b/config.yml
index b27312a..5bdc1b5 100644
--- a/config.yml
+++ b/config.yml
@@ -13,8 +13,6 @@ params:
   selfHosted: true
   rss: true
   readingTime: true
-  toc: false
-  colorScheme: "light"
 
   thumb:
     - src: "/img/happyDomain-domains-list.webp"
diff --git a/layouts/partials/footer.html b/layouts/partials/footer.html
index a48de87..58a673b 100644
--- a/layouts/partials/footer.html
+++ b/layouts/partials/footer.html
@@ -14,17 +14,11 @@
     </div>
     {{ end }}
     <div class="row">
-      <div class="col-lg-8 offset-lg-2 col-md-10 offset-md-1">
+      <div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
         <ul class="list-inline text-center footer-links">
-          {{- $data := dict -}}
-          {{- if ge hugo.Version "0.156.0" -}}
-            {{- $data = hugo.Data -}}
-          {{- else -}}
-            {{- $data = .Site.Data -}}
-          {{- end -}}
-          {{ range $data.beautifulhugo.social.social_icons }}
+          {{ range .Site.Data.beautifulhugo.social.social_icons }}
             {{- if isset $.Site.Params.author .id }}
-              <li class="list-inline-item">
+              <li>
 		{{ if or ( hasPrefix ( index $.Site.Params.author .id ) "http://" ) ( hasPrefix ( index $.Site.Params.author .id ) "https://" ) }}
 		  <a {{ if .rel }}rel="{{ .rel }}"{{- end -}} href="{{ printf "%s" (index $.Site.Params.author .id) }}" title="{{ .title }}">
 		{{ else }}
@@ -39,8 +33,8 @@
             {{- end -}}
           {{ end }}
           {{ if .Site.Params.rss }}
-          {{ with .Site.Home.OutputFormats.Get "RSS" }}
-          <li class="list-inline-item">
+          {{ with .OutputFormats.Get "RSS" }}
+          <li>
             <a href="{{ .RelPermalink }}" title="RSS">
               <span class="fa-stack fa-lg">
                 <i class="fas fa-circle fa-stack-2x"></i>
@@ -147,7 +141,7 @@
 </script>
 <noscript>
 <!-- Piwik Image Tracker -->
-<img src="https://{{ .Site.Params.piwik.server }}/piwik.php?idsite={{ .Site.Params.piwik.id }}&amp;rec=1" style="border:0" alt="" />
+<img src="http://{{ .Site.Params.piwik.server }}/piwik.php?idsite={{ .Site.Params.piwik.id }}&amp;rec=1" style="border:0" alt="" />
 <!-- End Piwik -->
 </noscript>
 <!-- End Piwik Code -->
diff --git a/layouts/partials/header.html b/layouts/partials/header.html
index 15bca82..a0355a3 100644
--- a/layouts/partials/header.html
+++ b/layouts/partials/header.html
@@ -1,91 +1,80 @@
-{{- $title := "" }}
-{{- $subtitle := "" }}
-{{- $bigimg := slice }}
-{{- $headerImgStyle := "big" }}
-{{- $thumbs := slice }}
-{{- $contentColClass := cond .Params.fullWidth "col-12" "col-md-10 offset-md-1" }}
-{{- $mainSections := default (slice "post" "posts") site.Params.mainSections }}
-{{- $isMainContent := in $mainSections .Type }}
 {{ if .IsHome }}
-  {{- $title = .Site.Params.homeTitle | default .Site.Title }}
-  {{- $subtitle = .Site.Params.subtitle }}
-  {{- $bigimg = .Site.Params.bigimg }}
-  {{- $headerImgStyle = .Site.Params.headerImgStyle | default "big" }}
-  {{- $thumbs = .Site.Params.thumb }}
+  {{ if .Site.Params.homeTitle }}{{ $.Scratch.Set "title" .Site.Params.homeTitle }}{{ end }}
+  {{ if .Site.Params.subtitle }}{{ $.Scratch.Set "subtitle" .Site.Params.subtitle }}{{ end }}
+  {{ if .Site.Params.bigimg }}{{ $.Scratch.Set "bigimg" .Site.Params.bigimg }}{{ end }}
+  {{ if .Site.Params.thumb }}{{ $.Scratch.Set "thumb" .Site.Params.thumb }}{{ end }}
 {{ else }}
-  {{- $title = .Title }}
-  {{- $subtitle = .Params.subtitle }}
-  {{- $bigimg = .Params.bigimg }}
-  {{- $headerImgStyle = .Params.headerImgStyle | default "big" }}
+  {{ $.Scratch.Set "title" .Title }}
+  {{ if .Params.subtitle }}{{ $.Scratch.Set "subtitle" .Params.subtitle }}{{ end }}
+  {{ if .Params.bigimg }}{{ $.Scratch.Set "bigimg" .Params.bigimg }}{{ end }}
 {{ end }}
+{{ $bigimg := $.Scratch.Get "bigimg" }}
+{{ $title := $.Scratch.Get "title" }}
+{{ $subtitle := $.Scratch.Get "subtitle" }}
+{{ $thumbs := $.Scratch.Get "thumb" }}
 
 {{ if or (or $bigimg $title) $thumbs }}
   {{ if $bigimg }}
     <div id="header-big-imgs" data-num-img={{len $bigimg}}
       {{range $i, $img := $bigimg}}
-         data-img-src-{{add $i 1}}="{{ strings.TrimPrefix "/" $img.src | relURL }}"
+         {{ if (fileExists $img.src)}}
+          data-img-src-{{add $i 1}}="{{$img.src | absURL }}"
+         {{else}}
+          data-img-src-{{add $i 1}}="{{$img.src}}"
+         {{end}}
          {{ if $img.desc}}data-img-desc-{{add $i 1}}="{{$img.desc}}"{{end}}
-         {{ if $img.position}}data-img-position-{{add $i 1}}="{{$img.position}}"{{end}}
       {{end}}></div>
   {{ end }}
 
   <header class="header-section {{ if $bigimg }}has-img{{ end }}">
-    {{ if $thumbs }}
-    <div class="container" style="margin-top: 160px;">
-      <div class="thumbApps">
-        {{range $thumbs}}
-        <a href="{{ .link | absURL }}" target="_blank">
-          <div class="thumbApp" style="background-image:url('{{ .src | absURL }}')">
-            {{ if .desc }}<p><span>{{ .desc }}</span></p>{{end}}
-          </div>
-        </a>
-        {{ end }}
-      </div>
-      <hr class="small">
-    </div>
-    {{ end }}
     {{ if $bigimg }}
-      {{- $firstimg := index $bigimg 0 }}
-    <div class="intro-header big-img{{ if eq $headerImgStyle "narrow" }} narrow-img{{ end }}" style="background-image: url('{{ strings.TrimPrefix "/" $firstimg.src | relURL }}');">
+      <div class="intro-header big-img">
+        {{ $subtitle := $.Scratch.Get "subtitle" }}
         <div class="container">
           <div class="row">
-            <div class="{{$contentColClass}}">
+            <div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
               <div class="{{ .Type }}-heading">
-                <h1>{{ with $title }}{{.}}{{ else }}<br/>{{ end }}</h1>
-                {{ if not $isMainContent }}
-                  <hr class="small">
-                {{ end }}
-                {{ partial "header-subtitle.html" (dict "Context" . "Subtitle" $subtitle) }}
-                {{ if $isMainContent }}
-                  {{ partial "post_meta.html" . }}
-                {{ end }}
+                <h1>{{ with $.Scratch.Get "title" }}{{.}}{{ else }}<br/>{{ end }}</h1>
+                  {{ if $subtitle }}
+                    {{ if eq .Type "page" }}
+                      <hr class="small">
+                      <span class="{{ .Type }}-subheading">{{ $subtitle }}</span>
+                    {{ else }}
+                      <h2 class="{{ .Type }}-subheading">{{ $subtitle }}</h2>
+                    {{ end }}
+                  {{ end }}
+                  {{ if eq .Type "post" }}
+                    {{ partial "post_meta.html" . }}
+                  {{ end }}
               </div>
             </div>
           </div>
         </div>
-        <span class="img-desc" style="display: {{ cond (isset $firstimg "desc") "inline" "none"}};">{{$firstimg.desc}}</span>
+        <span class="img-desc" style="display: inline;"></span>
       </div>
     {{end}}
-    {{ if and $title (not $thumbs) }}
+    {{ if $title }}
     <div class="intro-header no-img">
       <div class="container">
         <div class="row">
-          <div class="{{$contentColClass}}">
+          <div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
             <div class="{{ .Type }}-heading">
-              {{ if $bigimg }}
-              <span class="h1">{{ with $title }}{{.}}{{ else }}<br/>{{ end }}</span>
-              {{ else }}
               {{ if eq .Type "list" }}
                 <h1>{{ if .Data.Singular }}#{{ end }}{{ .Title }}</h1>
               {{ else }}
                 <h1>{{ with $title }}{{.}}{{ else }}<br/>{{ end }}</h1>
               {{ end }}
-              {{ end }}
-              {{ if not $isMainContent }}
+              {{ if ne .Type "post" }}
                 <hr class="small">
               {{ end }}
-              {{ partial "header-subtitle.html" (dict "Context" . "Subtitle" $subtitle) }}
-              {{ if $isMainContent }}
+              {{ if $subtitle }}
+                {{ if eq .Type "page" }}
+                  <span class="{{ .Type }}-subheading">{{ $subtitle }}</span>
+                {{ else }}
+                  <h2 class="{{ .Type }}-subheading">{{ $subtitle }}</h2>
+                {{ end }}
+              {{ end }}
+              {{ if eq .Type "post" }}
                 {{ partial "post_meta.html" . }}
               {{ end }}
             </div>
@@ -93,8 +82,24 @@
         </div>
       </div>
     </div>
-  {{ end }}
-    {{ partial "header_custom.html" . }}
+    {{ else }}
+    <div class="intro-header no-img"></div>
+    {{end}}
+
+    {{ if $thumbs }}
+    <div class="container">
+      <div class="thumbApps">
+        {{range $i, $thumb := $thumbs}}
+        <a href="{{ $thumb.link | absURL }}" target="_blank">
+          <div class="thumbApp" style="background-image:url('{{ $thumb.src | absURL }}')">
+            {{ if $thumb.desc }}<p><span>{{ $thumb.desc }}</span></p>{{end}}
+          </div>
+        </a>
+        {{ end }}
+      </div>
+      <hr class="small">
+    </div>
+    {{ end }}
   </header>
 {{ else }}
   <div class="intro-header"></div>
diff --git a/layouts/partials/nav.html b/layouts/partials/nav.html
new file mode 100644
index 0000000..40d5922
--- /dev/null
+++ b/layouts/partials/nav.html
@@ -0,0 +1,105 @@
+<nav class="navbar navbar-default navbar-fixed-top navbar-inverse navbar-custom">
+  <div class="container-fluid">
+    <div class="navbar-header">
+      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#main-navbar">
+        <span class="sr-only">{{ i18n "toggleNavigation" }}</span>
+        <span class="icon-bar"></span>
+        <span class="icon-bar"></span>
+        <span class="icon-bar"></span>
+      </button>
+      <a class="navbar-brand" href="{{ "" | absLangURL }}">{{ .Site.Title }}</a>
+    </div>
+
+    <div class="collapse navbar-collapse" id="main-navbar">
+      <ul class="nav navbar-nav navbar-right">
+        {{ range .Site.Menus.main.ByWeight }}
+          {{ if .HasChildren }}
+            <li class="navlinks-container">
+              <a class="navlinks-parent">{{ .Name }}</a>
+              <div class="navlinks-children">
+                {{ range .Children }}
+                  <a href="{{ .URL | relLangURL }}">{{ .Name }}</a>
+                {{ end }}
+              </div>
+            </li>
+          {{ else }}
+            <li>
+              <a title="{{ .Name }}" href="{{ .URL  | relLangURL }}">{{ .Name }}</a>
+            </li>
+          {{ end }}
+        {{ end }}
+
+        {{ if hugo.IsMultilingual }}
+          {{ if ge (len .Site.Languages) 3 }}
+            <li class="navlinks-container">
+              <a class="navlinks-parent">{{ i18n "languageSwitcherLabel" }}</a>
+              <div class="navlinks-children">
+                {{ range .Site.Languages }}
+                  {{ if not (eq .Lang $.Site.Language.Lang) }}
+                  <a href="/{{ .Lang }}" lang="{{ .Lang }}">{{ default .Lang .LanguageName }}</a>
+                  {{ end }}
+                {{ end }}
+              </div>
+            </li>
+          {{ else }}
+            <li>
+              {{ range .Site.Languages }}
+                {{ $lang := .Lang }}
+                {{ if not (eq $lang $.Site.Language.Lang) }}
+                  {{ $translatedPage := false }}
+                  {{ range $.Translations }}
+                    {{ if eq .Lang $lang }}{{ $translatedPage = . }}{{ end }}
+                  {{ end }}
+                  {{ if $translatedPage }}
+                    <a href="{{ $translatedPage.Permalink }}" lang="{{ $lang }}">{{ default $lang .LanguageName }}</a>
+                  {{ else }}
+                    <a href="/{{ $lang }}" lang="{{ $lang }}">{{ default $lang .LanguageName }}</a>
+                  {{ end }}
+                {{ end }}
+              {{ end }}
+            </li>
+          {{ end }}
+        {{ end }}
+
+        {{ if isset .Site.Params "gcse" }}
+          <li>
+            <a href="#modalSearch" data-toggle="modal" data-target="#modalSearch" style="outline: none;">
+              <span class="hidden-sm hidden-md hidden-lg">{{ i18n "gcseLabelShort" }}</span> <span id="searchGlyph" class="glyphicon glyphicon-search"></span>
+            </a>
+          </li>
+        {{ end }}
+      </ul>
+    </div>
+
+    {{ if isset .Site.Params "logo" }}
+      <div class="avatar-container">
+        <div class="avatar-img-border">
+          <a title="{{ .Site.Title }}" href="{{ "" | absLangURL }}">
+            <img class="avatar-img" src="{{ .Site.Params.logo | absURL }}" alt="{{ .Site.Title }}" />
+          </a>
+        </div>
+      </div>
+    {{ end }}
+
+  </div>
+</nav>
+
+<!-- Search Modal -->
+{{ if isset .Site.Params "gcse" }}
+  <div id="modalSearch" class="modal fade" role="dialog">
+    <div class="modal-dialog">
+      <div class="modal-content">
+        <div class="modal-header">
+          <button type="button" class="close" data-dismiss="modal">&times;</button>
+          <h4 class="modal-title">{{ i18n "gcseLabelLong" . }}</h4>
+        </div>
+        <div class="modal-body">
+          <gcse:search></gcse:search>
+        </div>
+        <div class="modal-footer">
+          <button type="button" class="btn btn-default" data-dismiss="modal">{{ i18n "gcseClose" }}</button>
+        </div>
+      </div>
+    </div>
+  </div>
+{{ end }}
diff --git a/layouts/partials/seo/structured/article.html b/layouts/partials/seo/structured/article.html
new file mode 100644
index 0000000..6acdba1
--- /dev/null
+++ b/layouts/partials/seo/structured/article.html
@@ -0,0 +1,28 @@
+<script type="application/ld+json">
+{
+  "@context": "http://schema.org",
+  "@type": "Article",
+  "author": {
+    "name" : "{{ if .Params.author -}}{{ .Params.author }}{{- else if .Site.Params.author.name -}}{{ .Site.Params.author.name }}{{- end }}"
+  },
+  "headline": "{{ .Title }}",
+  "description" : "{{ if .Description }}{{ .Description | plainify }}{{ else }}{{if .IsPage}}{{ .Summary | plainify  }}{{ end }}{{ end }}",
+  "inLanguage" : "{{ .Lang }}",
+  "wordCount": {{ .WordCount }},
+  "datePublished" : "{{ .PublishDate.Format "2006-01-02T15:04:05-07:00" }}",
+  "dateModified" : "{{ .Lastmod.Format "2006-01-02T15:04:05-07:00"  }}",
+  "image" : "{{ .Params.share_img | default .Params.image | default .Site.Params.logo | absURL }}",
+  "keywords" : [ "{{ range $i, $e := .Params.tags }}{{ if $i }}, {{ end }}{{ $e }}{{ end }}" ],
+  "mainEntityOfPage" : "{{ .Permalink }}",
+  "publisher" : {
+    "@type": "Organization",
+    "name" : "{{ .Site.BaseURL }}",
+    "logo" : {
+        "@type" : "ImageObject",
+        "url" : "{{ .Site.Params.logo | absURL }}",
+        "height" :  60 ,
+        "width" :  60
+    }
+  }
+}
+</script>
diff --git a/layouts/partials/seo/structured/breadcrumb.html b/layouts/partials/seo/structured/breadcrumb.html
new file mode 100644
index 0000000..fbc2e0d
--- /dev/null
+++ b/layouts/partials/seo/structured/breadcrumb.html
@@ -0,0 +1,21 @@
+<script type="application/ld+json">
+{
+  "@context": "http://schema.org",
+  "@type": "BreadcrumbList",
+  "itemListElement": [{
+        "@type": "ListItem",
+        "position": 1,
+        "item": {
+          "@id": "{{ .Site.BaseURL }}",
+          "name": "home"
+        }
+    },{
+        "@type": "ListItem",
+        "position": 2,
+        "item": {
+          "@id": "{{ .Permalink }}",
+          "name": "{{ .Title | humanize }}"
+        }
+    }]
+}
+</script>
diff --git a/static/css/custom.css b/static/css/custom.css
index 89e211b..df4966e 100644
--- a/static/css/custom.css
+++ b/static/css/custom.css
@@ -43,17 +43,10 @@ a:focus,
   background: #00a185;
 }
 
-p:has(.about-icon) {
-  position: relative;
-  padding-left: 2em;
-}
-
 .about-icon {
+  margin-top: 5px;
   position: absolute;
-  left: 0;
-  top: 0.25em;
-  width: 1.5em;
-  text-align: center;
+  left: -12px;
 }
 
 .navbar-custom {
@@ -68,8 +61,7 @@ p:has(.about-icon) {
   font-family: "Linux Biolinum O", 'Helvetica Neue', Helvetica, Arial, sans-serif;
 }
 
-.navbar-custom .nav-link,
-.navbar-custom .navbar-nav .nav-link {
+.navbar-custom .nav li a {
   font-size: 14px;
 }
 
@@ -78,40 +70,33 @@ p:has(.about-icon) {
 }
 
 .navbar-custom .navbar-brand,
-.navbar-custom .nav-link,
-.navbar-custom .navbar-nav .nav-link,
-.navbar-custom .theme-toggle {
+.navbar-custom .nav li a {
   font-weight: 800;
   color: #fafafa;
 }
 
 .navbar-custom .navbar-brand:hover,
-.navbar-custom .navbar-brand:focus,
-.navbar-custom .nav-link:hover,
-.navbar-custom .nav-link:focus,
-.navbar-custom .navbar-nav .nav-link:hover,
-.navbar-custom .navbar-nav .nav-link:focus {
+.navbar-custom .navbar-brand:focus ,
+.navbar-custom .nav li a:hover,
+.navbar-custom .nav li a:focus {
   color: #00a185;
 }
 
-.navbar-custom .navbar-toggler {
-  border-color: #fafafa;
-}
-.navbar-custom .navbar-toggler-icon {
-  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28250, 250, 250, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
-}
-
-.navbar-custom .dropdown-menu {
+.navbar-custom .nav .navlinks-container .navlinks-children a {
   background: #232323;
-  border: 1px solid #323232;
 }
-.navbar-custom .dropdown-item {
-  color: #fafafa;
+@media only screen and (max-width: 767px) {
+  .navbar-custom .nav .navlinks-container.show-children {
+    background: #131313;
+  }
 }
-.navbar-custom .dropdown-item:hover,
-.navbar-custom .dropdown-item:focus {
-  background: #131313;
-  color: #00a185;
+@media only screen and (min-width: 768px) {
+  .navbar-custom .nav .navlinks-container:hover {
+    background: #131313;
+  }
+  .navbar-custom .nav .navlinks-container .navlinks-children a {
+    border: 1px solid #323232;
+  }
 }
 
 footer {
@@ -122,20 +107,6 @@ footer {
   background-image: -webkit-linear-gradient(top, rgb(0,0,0) 4%, rgb(12,12,12) 42%, rgb(42,42,42) 100%);
   background-image: -ms-linear-gradient(top, rgb(0,0,0) 4%, rgb(12,12,12) 42%, rgb(42,42,42) 100%);
 }
-footer .credits,
-footer .theme-by,
-footer .text-muted {
-  color: #aaaaaa !important;
-}
-
-footer .footer-links .fa-circle {
-  color: #00a185;
-  transition: color 0.2s ease;
-}
-
-footer .footer-links a:hover .fa-circle {
-  color: #0085a1;
-}
 footer a {
   color: inherit;
 }