diff --git a/style.css/style.css b/style.css/style.css
new file mode 100644
index 0000000..f501c4b
--- /dev/null
+++ b/style.css/style.css
@@ -0,0 +1,335 @@
+/* --- 0. Général & Reset --- */
+* {
+    margin: 0;
+    padding: 0;
+    box-sizing: border-box;
+}
+
+body {
+    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+    margin: 0;
+    padding: 0;
+    line-height: 1.6;
+    color: #333;
+    background-color: #f4f7f6; 
+}
+
+h1, h2, h3 {
+    color: #1a5c88; 
+    margin-top: 0;
+}
+
+a {
+    text-decoration: none;
+    color: red; 
+    transition: color 0.3s ease;
+}
+
+a:hover {
+    text-decoration: underline;
+}
+
+.container {
+    max-width: 12px; 
+    margin: 0 auto;
+    padding: 0 20px;
+}
+
+
+/* --- 1. Header et Navigation --- */
+.header-portfolio {
+    background-color: darkblue; 
+    color: white;
+    padding: 10px 0;
+    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
+    position: sticky;
+    top: 0;
+    z-index: 1000;
+}
+
+.nav-principal {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    max-width: 1200px;
+    margin: 0 auto;
+    padding: 0 20px;
+}
+
+/* Modification : Logo "Abdul" en BLEU CLAIR */
+.nav-principal .logo {
+    font-size: 1.8em;
+    font-weight: bold;
+    color: #a7d9f7; 
+}
+
+.nav-principal ul {
+    list-style: none;
+    margin: 0;
+    padding: 0;
+    display: flex;
+}
+
+.nav-principal ul li {
+    margin-left: 25px;
+}
+
+/* Modification : Liens de navigation en BLEU CLAIR */
+.nav-principal ul li a {
+    color: #a7d9f7; 
+    font-weight: 500;
+    transition: color 0.3s ease;
+}
+
+.nav-principal ul li a:hover {
+    color: white; 
+    text-decoration: none;
+}
+
+/* Bouton Dark Mode (pour le JavaScript, couleur de base sur fond foncé) */
+#dark-mode-toggle {
+    background: none;
+    border: none;
+    color: white;
+    padding: 0.5rem;
+    cursor: pointer;
+    font-size: 1.5rem;
+    transition: color 0.3s;
+}
+
+/* --- 2. Bouton CTA (Call to Action) --- */
+.bouton-cta {
+    display: inline-block;
+    background-color: #007bff;
+    color: white;
+    padding: 10px 10px;
+    border-radius: 5px;
+    margin-top: 10px;
+    font-weight: bold;
+    transition: background-color 0.3s ease;
+}   
+
+.bouton-cta:hover {
+    background-color: #0056b3;
+    text-decoration: none;
+}
+
+
+/* --- 3. Section Accueil --- */
+.section-accueil {
+    background: linear-gradient(rgba(26, 92, 136, 0.8), rgba(26, 92, 136, 0.8)), url('images/background-reseau.jpg') no-repeat center center fixed; 
+    background-size: cover;
+    color: white;
+    text-align: center;
+    padding: 20px 20px;
+    min-height: 50px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.contenu-accueil {
+    max-width: 800px;
+}
+
+.section-accueil .titre-principal {
+    font-size: 3.2em;
+    margin-bottom: 20px;
+    color: white;
+}
+
+.section-accueil .accroche {
+    font-size: 1.3em;
+    max-width: 700px;
+    margin: 0 auto 30px auto;
+    color: #e0e0e0;
+}
+
+
+/* --- 4. Sections Générales --- */
+section {
+    padding: 80px 20px;
+    text-align: center;
+    max-width: 1200px;
+    margin: 0 auto;
+}
+
+.titre-section {
+    font-size: 2.5em;
+    margin-bottom: 50px;
+    position: relative;
+    padding-bottom: 10px;
+}
+
+.titre-section::after {
+    content: '';
+    position: absolute;
+    left: 50%;
+    bottom: 0;
+    transform: translateX(-50%);
+    width: 60px;
+    height: 4px;
+    background-color: #007bff;
+    border-radius: 2px;
+}
+
+
+/* --- 5. Cartes : Compétences et Projets --- */
+.grille-competences {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
+    gap: 30px;
+    max-width: 1000px;
+    margin: 0 auto;
+}
+
+.carte-competence {
+    background-color: white;
+    padding: 30px;
+    border-radius: 8px;
+    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
+    transition: transform 0.3s ease, box-shadow 0.3s ease;
+    text-align: left; 
+    border: 1px solid #ddd;
+}
+
+.carte-competence:hover {
+    transform: translateY(-10px);
+    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
+}
+
+.carte-competence h3 {
+    font-size: 1.5em;
+    color: #1a5c88;
+    margin-bottom: 15px;
+}
+
+.carte-competence p {
+    font-size: 1em;
+    color: #555;
+}
+
+.carte-competence img {
+    width: 30px;
+    margin-bottom: 10px;s
+}
+
+
+
+
+.icon-reseau::before,
+.icon-pc::before,
+.icon-electricite::before,
+.icon-photo::before {
+    content: '⚙️'; 
+    display: inline-block;
+    margin-right: 10px;
+    font-size: 1.2em;
+    color: #007bff;
+}
+
+
+.section-projets {
+    background-color: #eef3f6;
+}
+
+.grille-projets {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
+    gap: 30px;
+    max-width: 1200px;
+    margin: 0 auto;
+}
+
+.carte-projet {
+    background-color: white;
+    padding: 25px;
+    border-radius: 8px;
+    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
+    text-align: left;
+    transition: transform 0.3s ease;
+    border: 1px solid #ddd;
+} /* AJOUT DE L'ACCOLADE MANQUANTE ICI */
+
+
+.carte-projet:hover {
+    transform: translateY(-5px);
+}
+
+.carte-projet h3 {
+    font-size: 1.4em;
+    margin-bottom: 10px;
+}
+
+.carte-projet p {
+    font-size: 0.95em;
+    color: #666;
+    margin-bottom: 20px;
+}
+
+.lien-projet {
+    display: inline-block;
+    color: #1a5c88;
+    font-weight: bold;
+}
+
+.lien-projet:hover {
+    color: #007bff;
+}
+
+.experienc-pro{
+    display: block;
+    margin-bottom: 10px;
+    font-size: 1.4em;
+}
+
+
+/* --- 7. Section Contact --- */
+.section-contact p {
+    font-size: 1.1em;
+    margin-bottom: 40px;
+}
+
+
+/* --- 8. Médias Queries (Réactivité) --- */
+@media (max-width: 768px) {
+    .nav-principal {
+        flex-direction: column;
+        align-items: flex-start;
+        padding-bottom: 10px;
+    }
+    
+    .nav-principal ul {
+        margin-top: 15px;
+        width: 100%;
+        justify-content: space-around;
+    }
+    .nav-principal ul li {
+        margin: 0 10px;
+    }
+    
+    #dark-mode-toggle {
+        position: absolute;
+        top: 10px;
+        right: 20px;
+    }
+
+    .section-accueil .titre-principal {
+        font-size: 2.5em;
+    }
+    .section-accueil .accroche {
+        font-size: 1.1em;
+    }
+    .grille-competences,
+    .grille-projets {
+        grid-template-columns: 1fr; 
+    }
+    .carte-competence, .carte-projet {
+        text-align: center; 
+    }
+    .carte-competence h3 i {
+        display: block;
+        margin-bottom: 10px;
+    }
+}
+}
\ No newline at end of file