Power Button

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="640"
    height="640"
    viewBox="0 0 480 480"
>
    <linearGradient id="a">
        <stop offset="0" stop-color="#159957" />
        <stop offset="1" stop-color="#00afc3" />
    </linearGradient>
    <linearGradient
        id="b"
        x1="-16"
        x2="489.016"
        y1="148"
        y2="148"
        gradientUnits="userSpaceOnUse"
        href="#a"
    />
    <linearGradient
        id="c"
        x1="-16"
        x2="489.016"
        y1="256"
        y2="256"
        gradientUnits="userSpaceOnUse"
        href="#a"
    />
    <linearGradient
        id="d"
        x1="-16"
        x2="489.016"
        y1="240"
        y2="240"
        gradientUnits="userSpaceOnUse"
        href="#a"
    />
    <path
        fill="url(#b)"
        d="M232 248h16c17.672 0 32-14.328 32-32V80c0-17.672-14.328-32-32-32h-16c-17.672 0-32 14.328-32 32v136c0 17.672 14.328 32 32 32zM216 80c0-8.836 7.164-16 16-16h16c8.836 0 16 7.164 16 16v136c0 8.836-7.164 16-16 16h-16c-8.836 0-16-7.164-16-16zm0 0"
    />
    <path
        fill="url(#c)"
        d="M324.215 105.2a8.008 8.008 0 0 0-8.106-.192A8.002 8.002 0 0 0 312 112v48a15.58 15.58 0 0 0 .61 3.016 15.596 15.596 0 0 0 1.68 2.586l.046.054A116.086 116.086 0 0 1 352 248c0 55.398-52.336 104-112 104s-112-48.602-112-104a116.076 116.076 0 0 1 37.656-82.336l.047-.055a15.596 15.596 0 0 0 1.68-2.586c.304-.984.512-1.996.617-3.023v-48a8.002 8.002 0 0 0-4.11-6.992 8.008 8.008 0 0 0-8.105.191C124.496 124.61 72 168.97 72 248c0 86.727 76.938 160 168 160s168-73.273 168-160c0-79.031-52.496-123.39-83.785-142.8zM240 392c-82.398 0-152-65.945-152-144a147.766 147.766 0 0 1 64-120.945V156.8A129.33 129.33 0 0 0 112 248c0 63.922 59.816 120 128 120s128-56.078 128-120a129.33 129.33 0 0 0-40-91.2v-29.745A147.766 147.766 0 0 1 392 248c0 78.055-69.602 144-152 144zm0 0"
    />
    <path
        fill="url(#d)"
        d="M240 0C107.453 0 0 107.453 0 240s107.453 240 240 240 240-107.453 240-240C479.852 107.516 372.484.148 240 0zm0 464C116.29 464 16 363.71 16 240S116.29 16 240 16s224 100.29 224 224c-.14 123.652-100.348 223.86-224 224zm0 0"
    />
</svg>