diff --git a/TODO.md b/TODO.md
index c3b9ca5..fb67469 100644
--- a/TODO.md
+++ b/TODO.md
@@ -907,7 +907,7 @@ Once the above is applied, the following classes become deletable (element name
 
 ### X - `public/admin/index.php` (TFE list)
 
-- [ ] **`<div class="admin-stats">` with `<div class="admin-stat">` children** - the stats
+- [x] **`<div class="admin-stats">` with `<div class="admin-stat">` children** - the stats
       (total, published, pending) are a set of key-value pairs. Replace with `<dl>`:
       `<div class="admin-stats">` → `<dl class="admin-stats">`;
       each `<div class="admin-stat">` → `<div>` kept (valid `<dl>` child for grouping, per spec);
@@ -923,7 +923,7 @@ Once the above is applied, the following classes become deletable (element name
       with `<div role="toolbar" aria-label="Actions groupées">`. Not a full semantic element
       replacement, but adds correct ARIA role for the keyboard/AT pattern of a toolbar.
 
-- [ ] **`<table class="admin-table">` is correct** - tabular data, right element. No change
+- [x] **`<table class="admin-table">` is correct** - tabular data, right element. No change
       needed. The `<thead>`, `<tbody>`, `<tr>`, `<th>`, `<td>` structure is correct.
       Minor: `<th>` cells have no `scope="col"` attribute - add it for screen reader column
       association (`<th scope="col">`).
@@ -940,15 +940,15 @@ Once the above is applied, the following classes become deletable (element name
       `style="margin-top:.35rem;"` on two of the three forms → move to CSS (e.g.
       `.admin-inline-form + .admin-inline-form` selector in `admin.css`).
 
-- [ ] **`<table>` with `<th>` cells lacking `scope="col"`** - same as `index.php`.
+- [x] **`<table>` with `<th>` cells lacking `scope="col"`** - same as `index.php`.
 
 ### XII - `public/admin/thanks.php`
 
-- [ ] **`<div class="admin-thesis-info">` blocks** - each is a labelled section with a `<dl>`
+- [x] **`<div class="admin-thesis-info">` blocks** - each is a labelled section with a `<dl>`
       inside it (already using `<dl>/<dt>/<dd>` correctly - good!). The outer wrapper `<div>`
       could be a `<section>` with the `<h2>` as its heading, making the structure
       `<section><h2>...</h2><dl>...</dl></section>`. Removes `.admin-thesis-info` class; CSS targets
-      `main > section`.
+      `.admin-main > section`.
 
 ### XIII - `public/admin/account.php`
 
diff --git a/public/admin/index.php b/public/admin/index.php
index 9316407..1a251bf 100644
--- a/public/admin/index.php
+++ b/public/admin/index.php
@@ -98,20 +98,20 @@ document.addEventListener('DOMContentLoaded', () => {
     </div>
 
     <!-- Stats (always reflects full DB, independent of active filters) -->
-    <div class="admin-stats">
+    <dl class="admin-stats">
         <div class="admin-stat">
-            <div class="admin-stat__number"><?= $stats['total'] ?></div>
-            <div class="admin-stat__label">TFE total</div>
+            <dt class="admin-stat__label">TFE total</dt>
+            <dd class="admin-stat__number"><?= $stats['total'] ?></dd>
         </div>
         <div class="admin-stat">
-            <div class="admin-stat__number"><?= $stats['published'] ?></div>
-            <div class="admin-stat__label">Publiés</div>
+            <dt class="admin-stat__label">Publiés</dt>
+            <dd class="admin-stat__number"><?= $stats['published'] ?></dd>
         </div>
         <div class="admin-stat">
-            <div class="admin-stat__number"><?= $stats['pending'] ?></div>
-            <div class="admin-stat__label">En attente</div>
+            <dt class="admin-stat__label">En attente</dt>
+            <dd class="admin-stat__number"><?= $stats['pending'] ?></dd>
         </div>
-    </div>
+    </dl>
 
     <!-- Filters -->
     <form class="admin-filters" method="get" action="/admin/">
@@ -160,15 +160,15 @@ document.addEventListener('DOMContentLoaded', () => {
     <table class="admin-table">
         <thead>
             <tr>
-                <th><input type="checkbox" onchange="toggleAll(this)"></th>
-                <th>ID</th>
-                <th>Titre</th>
-                <th>Auteur(s)</th>
-                <th>Année</th>
-                <th>Orientation</th>
-                <th>AP</th>
-                <th>Statut</th>
-                <th>Actions</th>
+                <th scope="col"><input type="checkbox" onchange="toggleAll(this)"></th>
+                <th scope="col">ID</th>
+                <th scope="col">Titre</th>
+                <th scope="col">Auteur(s)</th>
+                <th scope="col">Année</th>
+                <th scope="col">Orientation</th>
+                <th scope="col">AP</th>
+                <th scope="col">Statut</th>
+                <th scope="col">Actions</th>
             </tr>
         </thead>
         <tbody>
diff --git a/public/admin/pages.php b/public/admin/pages.php
index 955b8bb..ef3f83d 100644
--- a/public/admin/pages.php
+++ b/public/admin/pages.php
@@ -31,10 +31,10 @@ unset($_SESSION['success']);
     <table class="admin-table">
         <thead>
             <tr>
-                <th>Slug</th>
-                <th>Titre</th>
-                <th>Mis à jour</th>
-                <th>Action</th>
+                <th scope="col">Slug</th>
+                <th scope="col">Titre</th>
+                <th scope="col">Mis à jour</th>
+                <th scope="col">Action</th>
             </tr>
         </thead>
         <tbody>
diff --git a/public/admin/tags.php b/public/admin/tags.php
index fe1c5d7..443b751 100644
--- a/public/admin/tags.php
+++ b/public/admin/tags.php
@@ -38,9 +38,9 @@ unset($_SESSION['admin_error'], $_SESSION['admin_success']);
     <table class="admin-table" style="margin-top:1.5rem;">
         <thead>
             <tr>
-                <th style="width:40%;">Nom</th>
-                <th style="width:12%;text-align:center;">TFE associés</th>
-                <th style="width:48%;">Actions</th>
+                <th scope="col" style="width:40%;">Nom</th>
+                <th scope="col" style="width:12%;text-align:center;">TFE associés</th>
+                <th scope="col" style="width:48%;">Actions</th>
             </tr>
         </thead>
         <tbody>
diff --git a/public/admin/thanks.php b/public/admin/thanks.php
index 5554c4a..b273764 100644
--- a/public/admin/thanks.php
+++ b/public/admin/thanks.php
@@ -73,7 +73,7 @@ $pageTitle = "Récapitulatif TFE";
         <p><a href="/admin/add.php" class="admin-btn-secondary">Retour au formulaire</a></p>
 
     <?php elseif ($thesis): ?>
-        <div class="admin-thesis-info">
+        <section>
             <h2>Informations de base</h2>
             <dl>
                 <dt>Identifiant</dt><dd><?= htmlspecialchars($thesis['identifier']) ?></dd>
@@ -84,9 +84,9 @@ $pageTitle = "Récapitulatif TFE";
                 <dt>Auteur·ice(s)</dt><dd><?= htmlspecialchars($thesis['authors']) ?></dd>
                 <dt>Année</dt><dd><?= htmlspecialchars($thesis['year']) ?></dd>
             </dl>
-        </div>
+        </section>
 
-        <div class="admin-thesis-info">
+        <section>
             <h2>Détails académiques</h2>
             <dl>
                 <dt>Orientation</dt><dd><?= htmlspecialchars($thesis['orientation'] ?? '–') ?></dd>
@@ -96,9 +96,9 @@ $pageTitle = "Récapitulatif TFE";
                 <dt>Promoteur·ice(s)</dt><dd><?= htmlspecialchars($thesis['supervisors']) ?></dd>
                 <?php endif; ?>
             </dl>
-        </div>
+        </section>
 
-        <div class="admin-thesis-info">
+        <section>
             <h2>Contenu</h2>
             <dl>
                 <?php if ($thesis['languages']): ?>
@@ -117,13 +117,13 @@ $pageTitle = "Récapitulatif TFE";
                 <dt>Lien</dt><dd><a href="<?= htmlspecialchars($thesis['baiu_link']) ?>" target="_blank" rel="noopener"><?= htmlspecialchars($thesis['baiu_link']) ?></a></dd>
                 <?php endif; ?>
             </dl>
-        </div>
+        </section>
 
         <?php if (!empty($files)): ?>
-        <div class="admin-thesis-info">
+        <section>
             <h2>Fichiers</h2>
             <table class="admin-table">
-                <thead><tr><th>Type</th><th>Fichier</th><th>Taille</th><th>Date</th></tr></thead>
+                <thead><tr><th scope="col">Type</th><th scope="col">Fichier</th><th scope="col">Taille</th><th scope="col">Date</th></tr></thead>
                 <tbody>
                     <?php foreach ($files as $f): ?>
                     <tr>
@@ -135,7 +135,7 @@ $pageTitle = "Récapitulatif TFE";
                     <?php endforeach; ?>
                 </tbody>
             </table>
-        </div>
+        </section>
         <?php endif; ?>
 
         <div style="margin-top:1.5rem;display:flex;gap:.75rem;flex-wrap:wrap;">
diff --git a/public/assets/css/admin.css b/public/assets/css/admin.css
index 9b6d0b0..8c13e50 100644
--- a/public/assets/css/admin.css
+++ b/public/assets/css/admin.css
@@ -309,6 +309,8 @@
   border-radius: 4px;
   padding: 1rem 1.5rem;
   min-width: 140px;
+  display: flex;
+  flex-direction: column;
 }
 
 .admin-stat__number {
@@ -316,12 +318,15 @@
   font-weight: 700;
   color: var(--admin-purple);
   line-height: 1;
+  order: 1;   /* visually first despite dt/dd semantic order */
+  margin: 0;
 }
 
 .admin-stat__label {
   font-size: 0.82rem;
   color: var(--admin-text-muted);
   margin-top: 0.25rem;
+  order: 2;   /* visually second */
 }
 
 /* ---- Filters bar ---- */
@@ -514,34 +519,34 @@
   gap: 0.5rem;
 }
 
-/* Thesis info (thanks page) */
-.admin-thesis-info {
+/* Thesis info sections (thanks page) */
+.admin-main > section {
   border: 1px solid var(--admin-border);
   border-radius: 6px;
   padding: 1.5rem;
   margin-bottom: 1.5rem;
 }
 
-.admin-thesis-info h2 {
+.admin-main > section h2 {
   margin: 0 0 1rem;
   font-size: 1.2rem;
   border-bottom: 1px solid var(--admin-border);
   padding-bottom: 0.5rem;
 }
 
-.admin-thesis-info dl {
+.admin-main > section dl {
   display: grid;
   grid-template-columns: 180px 1fr;
   gap: 0.4rem 1rem;
 }
 
-.admin-thesis-info dt {
+.admin-main > section dt {
   font-weight: 600;
   font-size: 0.88rem;
   color: var(--admin-text-muted);
 }
 
-.admin-thesis-info dd {
+.admin-main > section dd {
   margin: 0;
   font-size: 0.9rem;
 }