style.scss

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    overflow: hidden;
    background-color: #50638e;
    font-family: Roboto;
}

canvas {
    width: 100vw;
    height: 100vh;
    cursor: grab;

    &:active {
        cursor: grabbing;
    }
}

.options {
    position: fixed;
    display: flex;
    bottom: 0;
    right: 0;
    padding: 7px 20px 7px 90px;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.5));
    gap: 24px;

    a, button {
        user-select: none;
        display: block;
        padding: 2px;
        margin: 0;
        width: 28px;
        height: 28px;
        background-color: transparent;
        outline: none;
        border: none;
        cursor: pointer;

        img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }
    }
}

.controls {
    display: flex;

    label {
        color: #a0a0a0;
        cursor: pointer;
        user-select: none;
        padding: 4px 10px 0;
        white-space: nowrap;

        &.fps {
            grid-area: a;
        }

        &.orbit {
            grid-area: c;
        }

        @media (max-width: 560px) {
            font-size: 14px;
        }
    }

    .switch {
        position: relative;
        display: grid;
        grid-template-areas: " a b c ";
        width: 100%;

        input {
            position: absolute;
            appearance: none;
            width: 35px;
            height: 17px;
            grid-area: b;
            margin-top: 5px;
            z-index: 2;
            cursor: pointer;
            opacity: 0;
            
            &:checked {
                display: none;

                + label {
                    color: #fff;
                }
            }
        }

        .bar {
            position: relative;
            width: 35px;
            height: 17px;
            background-color: #fff;
            border-radius: 50px;
            grid-area: b;
            margin-top: 5px;
        }

        .circle {
            position: absolute;
            top: 1px;
            left: 2px;
            width: 13px;
            height: 15px;
            border-radius: 50%;
            background-color: #D8AA34;
            transition: left 300ms ease;
        }

        #orbit:checked + label + .bar .circle{
            left: 20px;
        }
    }
}

.loader {
    position: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    inset: 0;
    background-color: #fff;
    z-index: 2;
    transition: opacity 300ms ease;
    transition-delay: 500ms;

    &.hide {
        opacity: 0;
        pointer-events: none;
    }

    .loading-bar {
        position: relative;
        width: 80vw;
        max-width: 450px;
        background-color: #a0a0a0;
        height: 12px;
        border-radius: 50px;
        overflow: hidden;
        margin-top: 5px;

        .progress {
            background-color: #D8AA34;
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 0%;
        }
    }
}