.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #008fff;
    transition: opacity 0.75s, visibility 0.75s;
}

.loader--hidden {
    opacity: 0;
    visibility: hidden;
}

.loader::after {
    content: "";
    width: 75px;
    height: 75px;
    border: 15px solid #dddddd;
    border-top-color: #009578;
    border-radius: 50%;
    animation: loading 0.75s ease infinite;
}

@keyframes loading {
    from {
        transform: rotate(0turn);
    }

    to {
        transform: rotate(1turn);
    }
}

html,
body {
    background-color: #008fff;
    margin: 0;
    padding: 0;
    overflow: hidden;
    height: 100%;
    width: 100%;
}

#game-container {
    width: 100%;
    height: 100%;

    /* ✅ Тут фон саме як background, не як <img> */
    background-image: url("assets/bg/bg0.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;

    position: relative;
}