/* Initial loader - fond sombre en attendant React */
#initial-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #0f172a;
    background-image:
        linear-gradient(45deg, #1e293b 25%, transparent 25%),
        linear-gradient(-45deg, #1e293b 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #1e293b 75%),
        linear-gradient(-45deg, transparent 75%, #1e293b 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    z-index: 9999;
}

#initial-loader.hidden {
    display: none;
}