.preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: #f0f0f0;
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
        }

        .squares-container {
            position: relative;
            width: 400px;
            height: 400px;
        }

        .square {
            position: absolute;
            width: 150px;
            height: 150px;
            border-radius: 25px;
        }

        .square.blue {
            background: #3B82F6;
            top: 50px;
            left: 50px;
        }

        .square.red {
            background: #EF4444;
            bottom: 50px;
            right: 50px;
        }