:root {
    --joinchat-ico: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M3.516 3.516c4.686-4.686 12.284-4.686 16.97 0 4.686 4.686 4.686 12.283 0 16.97a12.004 12.004 0 0 1-13.754 2.299l-5.814.735a.392.392 0 0 1-.438-.44l.748-5.788A12.002 12.002 0 0 1 3.517 3.517zm3.61 17.043.3.158a9.846 9.846 0 0 0 11.534-1.758c3.843-3.843 3.843-10.074 0-13.918-3.843-3.843-10.075-3.843-13.918 0a9.846 9.846 0 0 0-1.747 11.554l.16.303-.51 3.942a.196.196 0 0 0 .219.22l3.961-.501zm6.534-7.003-.933 1.164a9.843 9.843 0 0 1-3.497-3.495l1.166-.933a.792.792 0 0 0 .23-.94L9.561 6.96a.793.793 0 0 0-.924-.445 1291.6 1291.6 0 0 0-2.023.524.797.797 0 0 0-.588.88 11.754 11.754 0 0 0 10.005 10.005.797.797 0 0 0 .88-.587l.525-2.023a.793.793 0 0 0-.445-.923L14.6 13.327a.792.792 0 0 0-.94.23z'/%3E%3C/svg%3E");
    --joinchat-font: -apple-system, blinkmacsystemfont, "Segoe UI", roboto, oxygen-sans, ubuntu, cantarell, "Helvetica Neue", sans-serif;
}
.joinchat {
    --bottom: 20px;
    --sep: 20px;
    --s: 60px;
    position: fixed;
    z-index: 9000;
    font: normal normal normal 16px/1.625em var(--joinchat-font);
    letter-spacing: 0;
    animation: joinchat_show 500ms cubic-bezier(0.18, 0.89, 0.32, 1.28) 10ms both;
    transform-origin: calc(var(--s)/-2) calc(var(--s)/-4);
    user-select: none;
    touch-action: manipulation;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: rgb(0 0 0 / 0%);
    left: 45px;
    bottom: 45px;
}
.joinchat__button__open {
    width: var(--s);
    height: var(--s);
    border-radius: 50%;
    background: rgb(0 0 0 / 0%) var(--joinchat-ico) center no-repeat;
    background-size: 60%;
    overflow: hidden;
}
.joinchat__button {
    display: block;
    width: var(--s);
    height: var(--s);
    background: #25d366;
    color: inherit;
    border-radius: calc(var(--s)/2);
    box-shadow: 1px 6px 24px 0 rgba(7,94,84, 0.24);
    cursor: pointer;
    transition: background-color 0.2s linear;
}
.joinchat__button:hover {
    background: #128c7e;
}