diff --git a/svar-gantt-app/data.db b/svar-gantt-app/data.db
index 7a2ca9a..652f098 100644
Binary files a/svar-gantt-app/data.db and b/svar-gantt-app/data.db differ
diff --git a/svar-gantt-app/src/routes/api/planning/+server.ts b/svar-gantt-app/src/routes/api/planning/+server.ts
new file mode 100644
index 0000000..dc10212
--- /dev/null
+++ b/svar-gantt-app/src/routes/api/planning/+server.ts
@@ -0,0 +1,72 @@
+import { json } from '@sveltejs/kit';
+import db from '$lib/server/db';
+
+export async function POST({ request }) {
+  const body = await request.json();
+
+  try {
+    if (Array.isArray(body)) {
+      if (body.length > 1) {
+        // Cas d’un import CSV → remplacement total
+        const insert = db.prepare(`
+          INSERT INTO resource_planning (ressource, profil, date, disponibilite)
+          VALUES (@ressource, @profil, @date, @disponibilite)
+        `);
+        const clear = db.prepare(`DELETE FROM resource_planning`);
+        const transaction = db.transaction((data: any[]) => {
+          clear.run();
+          for (const entry of data) {
+            insert.run(entry);
+          }
+        });
+
+        transaction(body);
+      } else if (body.length === 1) {
+        // Cas d'une modif manuelle → update ou insert
+        const { ressource, profil, date, disponibilite } = body[0];
+        const existing = db.prepare(`
+          SELECT id FROM resource_planning
+          WHERE ressource = ? AND profil = ? AND date = ?
+        `).get(ressource, profil, date);
+
+        if (existing) {
+          db.prepare(`
+            UPDATE resource_planning
+            SET disponibilite = ?
+            WHERE id = ?
+          `).run(disponibilite, existing.id);
+        } else {
+          db.prepare(`
+            INSERT INTO resource_planning (ressource, profil, date, disponibilite)
+            VALUES (?, ?, ?, ?)
+          `).run(ressource, profil, date, disponibilite);
+        }
+      }
+    }
+
+    return json({ success: true });
+  } catch (e) {
+    console.error('Erreur POST /api/planning', e);
+    return json({ success: false, error: e.message }, { status: 500 });
+  }
+}
+
+export async function GET() {
+  const rows = db.prepare(`SELECT * FROM resource_planning`).all();
+
+  const grouped = new Map();
+
+  for (const row of rows) {
+    const key = `${row.ressource}|${row.profil}`;
+    if (!grouped.has(key)) {
+      grouped.set(key, {
+        ressource: row.ressource,
+        profil: row.profil,
+        disponibilites: {}
+      });
+    }
+    grouped.get(key).disponibilites[row.date] = row.disponibilite;
+  }
+
+  return json(Array.from(grouped.values()));
+}
diff --git a/svar-gantt-app/src/routes/planning/+page.svelte b/svar-gantt-app/src/routes/planning/+page.svelte
index 1312867..cd65228 100644
--- a/svar-gantt-app/src/routes/planning/+page.svelte
+++ b/svar-gantt-app/src/routes/planning/+page.svelte
@@ -1,5 +1,6 @@
 <script lang="ts">
   import Papa from 'papaparse';
+  import { onMount } from 'svelte';
   import { writable, get } from 'svelte/store';
 
   const planning = writable<any[]>([]);
@@ -7,6 +8,9 @@
 
   let file: File | null = null;
 
+  const saveMessage = writable('');
+  let timeout: ReturnType<typeof setTimeout>;
+
   const joursFeries = [
     '2025-01-01', '2025-04-21', '2025-05-01', '2025-05-08', '2025-05-29',
     '2025-07-14', '2025-08-15', '2025-11-01', '2025-11-11', '2025-12-25'
@@ -30,31 +34,76 @@
     });
   }
 
-  function handleFileUpload() {
+  function showSaveMessage(message: string = '✅ Sauvegarde enregistrée') {
+    saveMessage.set(message);
+    clearTimeout(timeout);
+    timeout = setTimeout(() => saveMessage.set(''), 2000);
+  }
+
+  onMount(async () => {
+    const res = await fetch('/api/planning');
+    if (res.ok) {
+      const data = await res.json();
+
+      if (data.length) {
+        const allDates = new Set<string>();
+        data.forEach(row => {
+          Object.keys(row.disponibilites).forEach(d => allDates.add(d));
+        });
+
+        const sortedDates = Array.from(allDates).sort();
+        dates.set(sortedDates);
+        planning.set(data);
+      }
+    }
+  });
+
+  async function handleFileUpload() {
     if (!file) return;
 
     Papa.parse(file, {
       header: true,
       skipEmptyLines: true,
-      complete: (result) => {
+      complete: async (result) => {
         const rows = result.data as any[];
-
         const colonnesDates = Object.keys(rows[0]).filter(k => /^\d/.test(k));
         dates.set(colonnesDates);
 
-        planning.set(rows.map(row => ({
+        const structured = rows.map(row => ({
           ressource: row.ressource,
           profil: row.profil,
           disponibilites: colonnesDates.reduce((acc, date) => {
             acc[date] = parseFloat(row[date] || 0);
             return acc;
           }, {} as Record<string, number>)
-        })));
+        }));
+
+        planning.set(structured);
+
+        const payload = [];
+        for (const row of structured) {
+          for (const date of colonnesDates) {
+            payload.push({
+              ressource: row.ressource,
+              profil: row.profil,
+              date,
+              disponibilite: row.disponibilites[date]
+            });
+          }
+        }
+
+        await fetch('/api/planning', {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify(payload)
+        });
+
+        showSaveMessage();
       }
     });
   }
 
-  function updateCell(rowIndex: number, date: string, value: string) {
+  async function updateCell(rowIndex: number, date: string, value: string) {
     const val = parseFloat(value);
     if (![0, 0.5, 1].includes(val)) return;
 
@@ -62,6 +111,23 @@
       current[rowIndex].disponibilites[date] = val;
       return current;
     });
+
+    const row = get(planning)[rowIndex];
+
+    await fetch('/api/planning', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify([
+        {
+          ressource: row.ressource,
+          profil: row.profil,
+          date,
+          disponibilite: val
+        }
+      ])
+    });
+
+    showSaveMessage();
   }
 
   function totalByDate(date: string) {
@@ -125,3 +191,11 @@
     </tfoot>
   </table>
 {/if}
+
+{#if $saveMessage}
+  <div
+    class="fixed bottom-4 right-4 bg-green-600 text-white px-4 py-2 rounded shadow-lg transition-opacity duration-300"
+  >
+    {$saveMessage}
+  </div>
+{/if}