.viewer-tools button{display:grid;place-items:center;width:44px;height:44px;padding:0;border:0;border-bottom:1px solid var(--line);background:#fff;color:var(--ink);font:700 23px/1 inherit;cursor:pointer;transition:color .18s ease,background-color .18s ease,transform .18s ease}.viewer-tools button:last-child{border-bottom:0}.viewer-tools button:hover:not(:disabled),.viewer-tools button:focus-visible{z-index:1;background:#eef5ff;color:var(--blue)}.viewer-tools button:active:not(:disabled){transform:scale(.92)}.viewer-tools button[aria-pressed="true"]{background:var(--blue);color:#fff}.viewer-tools button:disabled{cursor:not-allowed;color:#aab4c4;background:#f5f7fa}