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100%)}.bg-overlay-label{position:absolute;top:10px;left:10px;font-size:11px;font-weight:600;color:var(--fg);background:var(--bg-elev);border:1px solid var(--line);padding:3px 8px;border-radius:4px;pointer-events:none}.bg-overlay-label.right{left:auto;right:10px}.eraser-hint{position:absolute;bottom:12px;left:12px;display:inline-flex;align-items:center;gap:8px;background:#000000bf;color:#fff;padding:6px 12px;border-radius:6px;font-size:12px}.eraser-hint svg{width:14px;height:14px}.hint-inline{font-size:11px;color:var(--fg-subtle)}.tool-toggle{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;font-size:12px;font-family:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:6px;cursor:pointer;transition:background .15s,border-color .15s}.tool-toggle svg{width:14px;height:14px}.tool-toggle:hover:not(:disabled){border-color:var(--fg-subtle)}.tool-toggle.on{background:var(--accent);border-color:var(--accent);color:#17181c}.tool-toggle:disabled{opacity:.4;cursor:not-allowed}@media (max-width: 1080px){.control-panel{position:static}}