body {
            font-family: Arial, sans-serif;
            background: #0d0d0d;
            color: #f0f0f0;
            margin: 0;
            padding: 0;
        }
        header {
            background: 
                linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.8)),
                url("./img/background.jpg") center/cover no-repeat;
            background-attachment: fixed;
            text-align: center;
            padding: 40px 20px;
            min-height: 260px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        header img {
            max-width: 220px;
            margin:0 auto 10px;
        }
        nav {
            background: #111;
            padding: 10px;
            text-align: center;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            box-shadow: 0 2px 6px rgba(0,0,0,0.6);
        }
        body {
            padding-top: 70px;
        }
        nav a {
            color: #88c0d0;
            margin: 0 12px;
            text-decoration: none;
            font-weight: bold;
        }
        nav a:hover {
            color: #fff;
            text-shadow: 0 0 5px #88c0d0;
        }
        section {
            padding: 20px;
            max-width: 1100px;
            margin: auto;
        }
        .grid {
            display: grid;
            gap: 15px;
        }
        .grid-2 {
            grid-template-columns: 1fr 1fr;
        }
        .box {
            background: #121212;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #222;
            text-align: center;
        }
        .box img{
            display: block;      
            margin: 0 auto; 
            max-width: 150px; 
            height: auto; 
            border-radius: 15px;
        }
        .iconsReseaux {
            width: 100px; 
            height:100px; 
            border-radius: 15px;
        }
        footer {
            text-align: center;
            padding: 12px;
            font-size: 0.85em;
            background: #111;
            color: #999;
        }
        a.btn {
            display: inline-block;
            padding: 10px 18px;
            background: #007acc;
            color: #fff;
            text-decoration: none;
            border-radius: 6px;
            margin-top: 6px;
        }
        .section-divider {
            width: 100%;
            height: 1px;
            margin: 50px auto;
            background: linear-gradient(
                to right,
                transparent,
                #88c0d0,
                transparent
            );
            box-shadow: 0 0 6px rgba(136, 192, 208, 0.6);
        }
        .section-title {
            position: relative;
            text-align: center;
            margin: 60px 0 40px;
            font-size: 1.8em;
            letter-spacing: 2px;
            color: #88c0d0;
            text-transform: uppercase;
        }
        .section-title::before,
        .section-title::after {
            content: "";
            position: absolute;
            top: 50%;
            width: 35%;
            height: 1px;
            background: linear-gradient(
                to right,
                transparent,
                #88c0d0,
                transparent
            );
            box-shadow: 0 0 6px rgba(136, 192, 208, 0.6);
        }
        .section-title::before {
            left: 0;
        }
        .section-title::after {
            right: 0;
        }
        .dropdown {
            display: inline-block;
            position: relative;
            padding: 5px 10px;
        }
        .dropbtn {
            color: #88c0d0;
            font-weight: bold;
            cursor: pointer;
        }
        .dropdown-content {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: #111;
            min-width: 180px;
            border: 1px solid #222;
            border-radius: 6px;
            box-shadow: 0 6px 12px rgba(0,0,0,0.7);
            z-index: 2000;
        }
        .dropdown-content a {
            display: block;
            padding: 12px 16px;
            color: #88c0d0;
            text-decoration: none;
        }
        .dropdown-content a:hover {
            background: #1a1a1a;
            color: #fff;
        }
        .dropdown:hover .dropdown-content,
        .dropdown-content:hover {
            display: block;
        }
        a{
            color: #88c0d0;
        }
        h2{
            color: #88c0d0;
        }