.left-tool-dock{position:absolute;left:10px;top:50%;transform:translateY(-50%);z-index:60;width:52px;border-radius:16px;border:1px solid rgba(0,0,0,.07);background:#fff;box-shadow:0 1px 4px #00000012,0 4px 24px #0000000f;padding:6px;display:flex;flex-direction:column;gap:1px;animation:dock-enter .28s cubic-bezier(.22,1,.36,1) both}@keyframes dock-enter{0%{opacity:0;transform:translateY(-50%) translate(-6px)}to{opacity:1;transform:translateY(-50%) translate(0)}}.left-tool-tooltip-shell{position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);pointer-events:none;z-index:400;white-space:nowrap}.left-tool-tooltip{background:#1f2937;border:1px solid rgba(255,255,255,.08);border-radius:7px;padding:5px 9px;font-size:12px;color:#f9fafb;font-weight:500;box-shadow:0 4px 14px #00000040;display:flex;align-items:center;gap:7px;letter-spacing:-.005em;font-family:var(--font-ui, system-ui, -apple-system, sans-serif)}.left-tool-tooltip-kbd{font-size:10px;padding:2px 5px;border-radius:4px;background:#ffffff1f;border:1px solid rgba(255,255,255,.15);color:#ffffff80;font-family:inherit;line-height:1.4}.left-tool-divider{height:1px;background:#00000014;margin:3px 4px;flex-shrink:0}.left-tool-btn-wrap{position:relative}.left-tool-btn{width:42px;height:42px;border-radius:10px;border:1px solid transparent;background:transparent;color:#6b7280;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background 90ms ease,color 90ms ease,border-color 90ms ease;flex-shrink:0;position:relative}.left-tool-btn:focus-visible{outline:2px solid rgba(0,188,212,.55);outline-offset:2px}.left-tool-btn:hover{background:#0000000e;color:#374151}.left-tool-btn:disabled{opacity:.35;cursor:not-allowed}.left-tool-btn:disabled:hover{background:transparent;color:#6b7280}.left-tool-btn.is-active{background:#00bcd41a;border-color:#00bcd442;color:#0097a7}.left-tool-btn:active{transform:scale(.91)}.left-tool-btn-icon{flex-shrink:0;display:flex;align-items:center;justify-content:center;pointer-events:none}.left-tool-btn-label,.left-tool-btn-shortcut{display:none}.left-tool-mini-row{display:flex;gap:1px;margin-bottom:1px}.left-tool-mini-wrap{position:relative;flex:1}.left-tool-mini-btn{width:100%;height:34px;border-radius:7px;border:1px solid transparent;background:transparent;color:#9ca3af;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background 90ms ease,color 90ms ease}.left-tool-mini-btn:focus-visible{outline:2px solid rgba(0,188,212,.55);outline-offset:2px}.left-tool-mini-btn:hover{background:#0000000e;color:#374151}.left-tool-mini-btn:active{transform:scale(.92)}.left-tool-mini-label{display:none}