:root {
    --sp: 2.5s;
}

body {
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(#222222, #101010);
}

.content {
    width: 50vmin;
    height: 50vmin;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.65);
    animation: spin-all calc(var(--sp) * 2) linear 0s infinite
}

.circle {
    --in: 80%;
    --ar: #ff9800;
    --dt: #ffea34;
    --shadow: drop-shadow(0vmin 0vmin 0.5vmin #000000) drop-shadow(0vmin 1vmin 0.5vmin #0004);
    --cross: linear-gradient(0deg, #fff0 calc(50% - 2px), #000000 calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px)), linear-gradient(90deg, #fff0 calc(50% - 2px), #000000 calc(50% - 1px) calc(50% + 1px), #fff0 calc(50% + 2px));
    border: 6vmin solid var(--ar);
    width: var(--in);
    height: var(--in);
    border-radius: 100%;
    position: absolute;
    box-sizing: border-box;
    border-top-color: #fff0;
    border-left-color: #fff0;
    top: 15vmin;
    right: -10vmin;
    animation: spin-bot var(--sp) ease 0s infinite;
    background-image: var(--cross), radial-gradient(var(--dt) 5.5vmin, #fff0 calc(5.5vmin + 1px));
    background-repeat: no-repeat;
    background-size: 3vmin 1vmin, 1vmin 3vmin, 100% 100%;
    background-position: center center;
    filter: var(--shadow);
}

.circle:nth-child(2) {
    --in: 60%;
    top: -2vmin;
    animation: spin-top var(--sp) ease 0s infinite;
    transform: rotate(-45deg);
    background-image: var(--cross), radial-gradient(var(--dt) 1.25vmin, #fff0 calc(1.25vmin + 1px));
    right: -4vmin;
    filter: hue-rotate(10deg) var(--shadow);
    background-size: 1.4vmin 1vmin, 1vmin 1.4vmin, 100% 100%;
}

.circle:nth-child(3) {
    --in: 100%;
    top: -5vmin;
    left: -13vmin;
    transform: rotate(175deg);
    animation: spin-left var(--sp) ease calc(var(--sp) / 4) infinite;
    background-image: var(--cross), radial-gradient(var(--dt) 9vmin, #fff0 calc(9vmin + 1px));
    filter: hue-rotate(20deg) var(--shadow);
    background-size: 5vmin 1vmin, 1vmin 5vmin, 100% 100%;
}

.circle:nth-child(4) {
    --in: 60%;
    top: 35vmin;
    left: -6vmin;
    transform: rotate(-280deg);
    animation: spin-last var(--sp) ease calc(calc(calc(var(--sp) / 4) + var(--sp)) * -1) infinite;
    background-image: var(--cross), radial-gradient(var(--dt) 2.5vmin, #fff0 calc(2.5vmin + 1px));
    filter: hue-rotate(30deg) var(--shadow);
    background-size: 2vmin 1vmin, 1vmin 2vmin, 100% 100%;
}


@keyframes spin-all {
    0% {
        transform: rotate(0deg) scale(0.65);
    }

    100% {
        transform: rotate(360deg) scale(0.65);
    }
}


@keyframes spin-top {
    0% {
        transform: rotate(-45deg);
    }

    100% {
        transform: rotate(315deg);
    }
}

@keyframes spin-bot {

    0%,
    35% {
        transform: rotate(0deg);
    }

    80%,
    100% {
        transform: rotate(-360deg);
    }
}

@keyframes spin-left {

    0%,
    35% {
        transform: rotate(175deg);
    }

    80%,
    100% {
        transform: rotate(535deg);
    }
}

@keyframes spin-last {

    0%,
    10% {
        transform: rotate(-280deg);
    }

    90%,
    100% {
        transform: rotate(-640deg);
    }
}