.tool-layout{display:flex;align-items:flex-start;min-height:calc(100vh - var(--nav-height));padding-left:var(--sidebar-width)}.tool-sidebar{width:var(--sidebar-width);flex-shrink:0;border-right:1px solid var(--border);background:var(--surface);position:fixed;top:var(--nav-height);left:0;z-index:20;height:calc(100vh - var(--nav-height));height:calc(100dvh - var(--nav-height));overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.tool-sidebar::-webkit-scrollbar{width:6px}.tool-sidebar::-webkit-scrollbar-track{background:transparent}.tool-sidebar::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.tool-sidebar::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.tool-sidebar-head{position:-webkit-sticky;position:sticky;top:0;z-index:1;padding:12px 10px 9px;background:var(--surface);border-bottom:1px solid var(--border)}.tool-sidebar-title{margin:0 0 6px;padding:0 2px;font-size:13px;font-weight:600;color:var(--text-muted);letter-spacing:0}.tool-search-box{position:relative;display:flex;align-items:center}.tool-search-input{width:100%;padding:7px 28px 7px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);font-size:13px}.tool-search-input:focus{outline:none;border-color:var(--accent)}.tool-search-input::-webkit-search-cancel-button{display:none}.tool-search-clear{position:absolute;right:6px;width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;border:none;border-radius:50%;background:var(--border);color:var(--text-muted);font-size:14px;line-height:1;cursor:pointer}.tool-search-clear:hover{color:var(--text)}.tool-search-empty{margin:8px 4px;font-size:13px;color:var(--text-muted)}.tool-sidebar-nav{padding:8px 10px 12px}.tool-nav-group,.tool-sidebar-nav{display:flex;flex-direction:column;gap:2px}.tool-nav-group-toggle{width:100%;min-height:30px;display:grid;grid-template-columns:minmax(0,1fr) auto 16px;align-items:center;grid-gap:6px;gap:6px;padding:4px 8px;border:none;border-radius:6px;background:transparent;color:var(--text-muted);text-align:left;cursor:pointer;transition:background .2s,color .2s}.tool-nav-group-toggle:hover{background:var(--bg);color:var(--text)}.tool-nav-group-toggle.is-current{color:var(--accent)}.tool-nav-group-toggle:disabled{cursor:default}.tool-nav-group-label{min-width:0;font-size:12px;font-weight:600;letter-spacing:0}.tool-nav-group-count{min-width:18px;font-size:11px;text-align:right;color:var(--text-muted)}.tool-nav-group-chevron{font-size:18px;line-height:1;text-align:center;transform:rotate(0deg);transition:transform .2s}.tool-nav-group-toggle.is-expanded .tool-nav-group-chevron{transform:rotate(90deg)}.tool-nav-items{display:flex;flex-direction:column;gap:2px}.tool-nav-link{min-height:34px;display:grid;grid-template-columns:26px minmax(0,1fr);align-items:center;grid-gap:8px;gap:8px;padding:4px 8px;border-radius:6px;color:var(--text);transition:background .2s,color .2s}.tool-nav-icon{width:26px;height:22px;display:inline-flex;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--border);border-radius:5px;background:var(--bg);color:var(--text-muted);font-family:var(--font-mono);font-size:9px;font-weight:600;line-height:1}.tool-nav-all-icon{font-size:8px}.tool-nav-name{min-width:0;overflow:hidden;font-size:13px;font-weight:500;text-overflow:ellipsis;white-space:nowrap}.tool-nav-link:hover{background:var(--bg)}.tool-nav-link:hover .tool-nav-icon{border-color:var(--text-muted)}.tool-nav-link.is-active{background:color-mix(in srgb,var(--accent) 12%,var(--surface))}.tool-nav-link.is-active .tool-nav-icon,.tool-nav-link.is-active .tool-nav-name{color:var(--accent)}.tool-nav-link.is-active .tool-nav-icon{border-color:color-mix(in srgb,var(--accent) 35%,var(--border))}.tool-main{flex:1 1;min-width:0;padding:28px 32px}@media (max-width:768px){.tool-layout{flex-direction:column;align-items:stretch;padding-left:0}.tool-sidebar{width:100%;position:static;height:auto;overflow-y:visible;padding:0;border-right:none;border-bottom:1px solid var(--border)}.tool-sidebar-head{position:static;border-bottom:none;padding:12px 12px 8px}.tool-sidebar-title{display:none}.tool-sidebar-nav{overflow-x:auto;padding:0 12px 12px}.tool-nav-group,.tool-sidebar-nav{flex-direction:row;align-items:center;gap:8px}.tool-nav-group{flex-shrink:0;margin-top:0}.tool-nav-group-toggle{width:auto;min-height:36px;grid-template-columns:auto auto;flex-shrink:0;padding:7px 10px;border:1px solid var(--border);background:var(--surface)}.tool-nav-group-chevron{display:none}.tool-nav-items{flex-direction:row;gap:8px}.tool-nav-link{flex-shrink:0;min-height:36px;grid-template-columns:22px auto;padding:6px 10px;border:1px solid var(--border)}.tool-nav-icon{width:22px;height:20px}.tool-main{padding:20px 16px}}