.overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.6);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 99999;
        }

        .popup {
            background: white;
            width: 90%;
            max-width: 500px;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            position: relative;
            animation: slideIn 0.3s ease-out;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .close-btn {
            position: absolute;
            top: 15px;
            right: 15px;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            background: rgba(255,255,255,0.9);
            border: none;
            font-size: 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 10;
            transition: background 0.3s;
        }

        .close-btn:hover {
            background: white;
        }

        .popup-image {
            width: 100%;
            height: 250px;
            object-fit: cover;
        }

        .popup-content {
            padding: 35px 30px;
        }

        h2 {
            font-size: 28px;
            color: #2c2c2c;
            margin-bottom: 15px;
            line-height: 1.3;
            font-style: italic;
        }

        .subtitle {
            font-size: 16px;
            color: #555;
            margin-bottom: 15px;
        }

        .description {
            font-size: 15px;
            color: #666;
            line-height: 1.6;
            margin-bottom: 25px;
        }

        .description strong {
            color: #2c2c2c;
            font-weight: 600;
        }

        input {
            width: 100%;
            padding: 15px 20px;
            border: 1px solid #ddd;
            border-radius: 50px;
            font-size: 15px;
            margin-bottom: 15px;
            font-family: Arial, sans-serif;
        }

        input:focus {
            outline: none;
            border-color: #936037bc;
        }

        input::placeholder {
            color: #aaa;
        }

        .submit-btn {
            width: 100%;
            padding: 16px;
            background: #936037bc;
            color: white;
            border: none;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
            margin-bottom: 15px;
        }

        .submit-btn:hover {
            background: #936037bc;
        }

        .privacy-text {
            font-size: 12px;
            color: #888;
            text-align: center;
            line-height: 1.5;
        }

        .privacy-text a {
            color: #936037bc;
            text-decoration: underline;
        }

        /* Bouton pour rouvrir le popup (démo) */
        .demo-btn {
            padding: 15px 30px;
            background: #936037bc;
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
            display: none;
        }

        .demo-btn:hover {
            background: #936037bc;
        }