:root{--shell:#eceff0;--paper:#fff;--ink:#25343c;--muted:#647078;--line:#dce2e4;--accent:#285563;--deep:#193e4a;--soft:#f5f7f7;--selected:#e5eef0;--error:#a33d32;--radius:10px;--left:216px;--right:308px;color:var(--ink);background:var(--shell);font-synthesis:none;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:0;margin:0}button,input,select,textarea{font:inherit}button,a,input,select,summary{touch-action:manipulation}button{border:1px solid var(--line);background:var(--paper);min-height:44px;color:var(--ink);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;gap:7px;padding:10px 13px;font-size:12px;font-weight:550;transition:background .12s,border-color 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span{color:var(--muted);margin-left:auto;font-size:9px}.nav-bottom{gap:7px;margin-top:30px;padding:0 7px;display:grid}.nav-bottom button,.import-button{background:0 0;border-color:#0000;justify-content:flex-start;width:100%;padding:9px 7px;font-size:11px}.import-button{cursor:pointer;border-radius:6px;justify-content:center;min-height:44px;display:flex}.import-button input{opacity:0;width:1px;height:1px;position:absolute}.import-button:focus-within{outline:3px solid #418397}.nav-bottom>span{color:var(--muted);margin:12px 7px;font-size:9px;line-height:1.9}.content-frame{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);min-width:0;overflow:clip;box-shadow:0 2px 3px #172b3d05}.workspace-bar{border-bottom:1px solid var(--line);align-items:center;gap:12px;min-height:65px;padding:12px 20px;display:flex}.breadcrumbs{flex-wrap:wrap;align-items:center;gap:11px;font-size:11px;display:flex}.breadcrumbs>span{color:#9aa6ab}.breadcrumbs 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