diff --git a/projets.html b/projets.html
index b15729f..62c3a49 100644
--- a/projets.html
+++ b/projets.html
@@ -49,7 +49,7 @@
           </a>
         </article>
 
-        <article class="project-card">
+        <article class="prototype-card">
           <a class="card-link" href="" aria-label="Giant — ouvrir">
             <img loading="lazy" class="project-thumb" src="projects/img/giant.png" alt="Giant — miniature">
             <h3 data-i18n="project.giant.title">GiAnt</h3>
diff --git a/projets.json b/projets.json
deleted file mode 100644
index 8d10942..0000000
--- a/projets.json
+++ /dev/null
@@ -1,24 +0,0 @@
-[
-  {
-    "id": "riichi",
-    "title": "Riichi",
-    "description": "Simulateur et outils pour mahjong Riichi — moteurs, visualisations et tests.",
-    "tech": ["TypeScript","JS","Web"],
-    "image": "projects/img/riichi-tile.svg",
-    "repo": "https://github.com/decosse-adrien/riichi",
-    "live": "riichi/index.html",
-    "featured": true,
-    "date": "2024-03-12"
-  },
-  {
-    "id": "prototype-2",
-    "title": "Prototype 2",
-    "description": "Prototype en développement (ne pas encore mettre en avant).",
-    "tech": ["C","expérimental"],
-    "image": "projects/img/chess-pawn.svg",
-    "repo": "",
-    "live": "prototype2.html",
-    "featured": false,
-    "date": "2025-01-01"
-  }
-]
diff --git a/style.css b/style.css
index 0c68142..2e9701a 100644
--- a/style.css
+++ b/style.css
@@ -212,15 +212,45 @@ a#easteregg:active{
 
 /* Projects grid */
 .projects-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:16px; margin-top:12px}
+.projects-grid p{grid-column:1/-1}
+.project-links{margin-top:10px; display:flex; gap:8px}
+
+/* Project card */
 .project-card{background:var(--card); border-radius:10px; padding:12px; box-shadow:0 6px 18px rgba(15,23,42,0.05); border:1px solid rgba(15,23,42,0.04)}
 .project-card .project-thumb{width:100%; height:300px; object-fit:cover; border-radius:6px; display:block; margin-bottom:10px}
 .project-card h3{margin:8px 0 6px; font-size:18px}
 .project-card .excerpt{color:var(--muted); font-size:15px; margin:0}
 .project-card .tech{margin-top:8px}
 .project-card .tag{display:inline-block; background:rgba(15,23,42,0.04); padding:4px 8px; margin-right:6px; border-radius:6px; font-size:12px}
-.project-links{margin-top:10px; display:flex; gap:8px}
 
-.projects-grid p{grid-column:1/-1}
+/* Prototype card */
+.prototype-card{background:var(--card); border-radius:10px; padding:12px; box-shadow:0 6px 18px rgba(15,23,42,0.05); border:1px solid rgba(15,23,42,0.04); position:relative; overflow:hidden}
+.prototype-card .project-thumb{width:100%; height:300px; object-fit:cover; border-radius:6px; display:block; margin-bottom:10px}
+
+/* Ensure image stays below the badge but within card clipping */
+.prototype-card .project-thumb{position:relative; z-index:1}
+.prototype-card h3{margin:8px 0 6px; font-size:18px}
+.prototype-card .excerpt{color:var(--muted); font-size:15px; margin:0}
+.prototype-card .tech{margin-top:8px}
+.prototype-card .tag{display:inline-block; background:rgba(15,23,42,0.04); padding:4px 8px; margin-right:6px; border-radius:6px; font-size:12px}
+.prototype-card::before{
+  content:"PROTOTYPAGE";
+  position:absolute;
+  top:110px;
+  left:-30px;
+  width:210px;
+  height:34px;
+  line-height: 30px;
+  text-align: center;
+  background:#6e98f3;
+  border-radius:6px;
+  box-shadow:0 6px 18px rgba(37,99,235,0.12);
+  pointer-events:none;
+  z-index:2;
+  opacity:0.98;
+  transform-origin: left top;
+  transform: rotate(-40deg);
+}
 
 .lang-toggle{color:var(--muted); text-decoration:none; padding:4px 6px; border-radius:6px}
 .lang-toggle.active{background:rgba(37,99,235,0.08); color:var(--accent);}
@@ -229,10 +259,11 @@ a#easteregg:active{
 @media (max-width:900px){
   .projects-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:14px}
   .project-card .project-thumb{height:220px}
+  .prototype-card .project-thumb{height:220px}
 }
 
 @media (max-width:600px){
   .projects-grid{grid-template-columns:1fr}
   .project-card .project-thumb{height:180px}
-}
-
+  .prototype-card .project-thumb{height:180px}
+}
\ No newline at end of file