.formula-with-source{position:relative}.formula-source-trigger{inset-inline-end:0;z-index:1;pointer-events:none;vertical-align:middle;width:22px;height:22px;color:var(--muted-foreground);background:var(--background,var(--readxx-surface,#fff));opacity:0;cursor:pointer;-webkit-user-select:none;user-select:none;border:0;border-radius:4px;justify-content:center;align-items:center;padding:0;display:inline-flex;position:absolute;top:0}.formula-with-source:hover>.formula-source-trigger,.formula-source-trigger:focus-visible,.formula-source-trigger[data-state=open]{opacity:1;pointer-events:auto}.formula-source-trigger:focus-visible{outline:2px solid var(--brand-accent);outline-offset:2px}.formula-source-popover{z-index:50;box-sizing:border-box;border:1px solid var(--border,var(--readxx-border,#d9dde3));color:var(--foreground,var(--readxx-foreground,#111));background:var(--popover,var(--readxx-surface,#fff));width:min(480px,100vw - 32px);font:13px / 1.6 var(--interface-font);border-radius:8px;padding:12px}.formula-source-label{color:var(--muted-foreground);margin-bottom:6px;font-size:12px}.formula-source-popover pre{white-space:pre-wrap;overflow-wrap:anywhere;max-height:240px;margin:0;font:13px/1.6 ui-monospace,monospace;overflow:auto}