.support-btn{position:absolute;top:0;left:0;z-index:2;inline-size:4.0625rem;block-size:4.0625rem;border-radius:50%;background-color:var(--grey-color);-webkit-transform-origin:top right;-ms-transform-origin:top right;transform-origin:top right;-webkit-transition:background-color var(--trans-elem),color var(--trans-elem),rotate var(--trans-elem),visibility var(--trans-elem),opacity var(--trans-elem);transition:background-color var(--trans-elem),color var(--trans-elem),rotate var(--trans-elem),visibility var(--trans-elem),opacity var(--trans-elem)}.support-btn::before{font-size:2.3125rem}.support-btn::after{content:"";position:absolute;top:50%;left:50%;inline-size:100%;block-size:100%;background-color:var(--text-color);border-radius:50%;translate:-50% -50%;opacity:.2;-webkit-animation:pulse 2s infinite;animation:pulse 2s infinite;pointer-events:none}.support-btn span{position:absolute;top:0;right:.625rem;inline-size:0.625rem;block-size:0.625rem;background-color:var(--accent-color);border-radius:50%}.support-btn--close{border-radius:3.125rem 0 3.125rem 3.125rem;rotate:-40deg;opacity:0;visibility:hidden}.support-btn--close::before{font-size:1.75rem}.support-btn--close::after{display:none}.is-open-support .support-btn{opacity:0;rotate:-40deg;visibility:hidden}.is-open-support .support-btn--close{opacity:1;rotate:0deg;visibility:visible}.support-btn:focus-visible{outline:.125rem dashed var(--text-color);outline-offset:0.125rem;color:var(--light-color);background-color:var(--text-color)}@media (any-hover:hover){.support-btn:hover{color:var(--light-color);background-color:var(--text-color)}}@-webkit-keyframes pulse{0%{inline-size:4.0625rem;block-size:4.0625rem;opacity:.2}100%{inline-size:9.375rem;block-size:9.375rem;opacity:0}}@keyframes pulse{0%{inline-size:4.0625rem;block-size:4.0625rem;opacity:.2}100%{inline-size:9.375rem;block-size:9.375rem;opacity:0}}