diff --git a/style-form.css b/style-form.css
new file mode 100644
index 0000000..1e2c280
--- /dev/null
+++ b/style-form.css
@@ -0,0 +1,57 @@
+body {
+    font-family: Georgia, 'Times New Roman', Times, serif;
+    font-size: 11pt;
+    background-color: #f4f4f4;
+    color: #333;
+    background-image: url(../quest-rando/images/ciel-overlay2.jpg); */
+    background-attachment: fixed;
+    margin: 0;
+    padding: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    flex-direction: column;
+}
+
+h1 {
+    color: #090090;
+}
+h2 {
+    color: #090090;
+}
+h3 {
+    color: #090090;
+}
+
+form {
+    background: #fff;
+    padding: 2% 3%;
+    margin-bottom: 20px;
+    box-shadow: 0 2px 4px grey;
+    border-radius: 5px;
+    max-width: 800px;
+    width: 100%;
+}
+
+input[type="text"],
+textarea {
+    font-size: 11pt;
+    width: 100%;
+    padding: 10px;
+    margin-bottom: 10px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+}
+
+button {
+    background: #3498db;
+    color: white;
+    padding: 10px 20px;
+    border: none;
+    border-radius: 5px;
+    cursor: pointer;
+}
+
+button:hover {
+    background: #2980b9;
+}
diff --git a/style.css b/style.css
new file mode 100644
index 0000000..db84503
--- /dev/null
+++ b/style.css
@@ -0,0 +1,115 @@
+/* Conteneur principal pour éviter les styles flex globaux */
+.main-container {
+    width: 100%;
+    max-width: 900px;
+    margin: 0 auto;
+    padding: 20px;
+}
+
+/* Bouton retour aligné à droite */
+.btn-retour {
+    float: right; margin: 10px; /* Aligne le contenu à droite */
+    margin-bottom: 20px;
+}
+
+.btn-retour a img {
+    display: inline-block; /* Assure que l'image reste au format bouton */
+}
+body {
+    font-family: Georgia, 'Times New Roman', Times, serif;
+    font-size: 11pt;
+    background-color: #f4f4f4;
+    color: #333;
+    background-image: url(../quest-rando/images/ciel-overlay2.jpg);
+    background-attachment: fixed;
+    margin: 0;
+    padding: 0;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    flex-direction: column;
+}
+
+h1 {
+    color: #090090;
+}
+h2 {
+    color: #090090;
+}
+h3 {
+    color: #090090;
+}
+
+form {
+    background: #fff;
+    padding: 15px;
+    margin-bottom: 20px;
+    box-shadow: 0 2px 4px grey;
+    border-radius: 5px;
+    max-width: 900px;
+    width: 100%;
+}
+
+input[type="text"],
+textarea {
+    font-size: 11pt;
+    width: 100%;
+    padding: 10px;
+    margin-bottom: 10px;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+}
+
+button {
+    background: #3498db;
+    color: white;
+    padding: 10px 20px;
+    border: none;
+    border-radius: 5px;
+    cursor: pointer;
+}
+
+button:hover {
+    background: #2980b9;
+}
+
+.annonce {
+    background: #fff;
+    padding: 10px;
+    margin-bottom: 10px;
+    box-shadow: 0 2px 4px grey;
+    border-radius: 5px;
+    max-width: 900px;
+    width: 100%;
+}
+
+.annonce small {
+    color: #888;
+}
+/* Bouton haut page */
+/* Effet fluide */
+
+/* Style du bouton */
+#scrollToTop {
+    position: fixed;
+    bottom: 20px;
+    right: 170px; /*Position*/
+    padding: 10px 15px;
+    font-size: 16px;
+    background-color: #007bff;
+    color: #fff;
+    border: none;
+    border-radius: 5px;
+    cursor: pointer;
+    opacity: 0;
+    visibility: hidden;
+    transition:
+        opacity 0.3s,
+        visibility 0.3s;
+}
+
+/* Afficher le bouton lorsqu'on est en bas de page */
+#scrollToTop.show {
+    opacity: 1;
+    visibility: visible;
+}
diff --git a/traitement.php b/traitement.php
new file mode 100644
index 0000000..316bd90
--- /dev/null
+++ b/traitement.php
@@ -0,0 +1,28 @@
+<?php
+include 'annonces.php';
+session_start();
+
+// Vérifiez si le CAPTCHA est correct
+if (!isset($_POST['captcha']) || $_POST['captcha'] != ($_SESSION['captcha_num1'] + $_SESSION['captcha_num2'])) {
+    // Redirigez vers le formulaire avec une erreur
+    header('Location: formulaire.php?captcha_error=1');
+    exit();
+}
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST' && !empty($_POST['title'])) {
+    //  $nombre = isset($_POST['not_present']) ? 0 : ($_POST['nombre'] ?? 0);
+    $nombre = isset($_POST['nombre']) ? intval($_POST['nombre']) : null;
+
+    $description = $_POST['description'] ?? '';
+    $transportOption = $nombre > 0 ? ($_POST['transport_option'] ?? '') : '';
+
+    if ($nombre > 0 && empty($transportOption)) {
+        echo "<p style='color:red;'>Veuillez sélectionner une option de transport.</p>";
+    } else {
+        addAnnonce($_POST['title'], $nombre, $description, $transportOption);
+
+        // Rediriger vers la page de la liste des participants
+        header("Location: liste.php");
+        exit;
+    }
+}