:root{--color-primary:#ec1a2e;--color-primary-dark:#e00e22;--color-primary-light:#ff3549;--color-primary-lighter:#ffbcd0}.pistonflow-fab{position:fixed;right:24px;bottom:24px;z-index:9999;width:56px;height:56px;padding:0;border:0;border-radius:50%;background:var(--primary-color,#eb0a1e);color:#fff;box-shadow:0 4px 12px rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:filter .2s ease,transform .2s ease}.pistonflow-fab:hover,.pistonflow-fab:focus{background:var(--primary-color,#eb0a1e);color:#fff;outline:0;filter:brightness(1.08);transform:scale(1.08)}.pistonflow-fab svg{width:28px;height:28px;fill:currentColor}@media only screen and (max-width:768px){.pistonflow-fab{right:16px;bottom:16px;width:48px;height:48px}.pistonflow-fab svg{width:24px;height:24px}}