:root{--bg:#f7f9fc;--surface:#fff;--surface-soft:#f1f5f9;--surface-strong:#e8eef6;--text:#202124;--muted:#5f6368;--border:#d9dee7;--focus:#1a73e8;--accent:#1a73e8;--accent-strong:#1558b0;--success:#14825f;--shadow:0 10px 26px #3c404324, 0 2px 8px #3c40431a;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.5}*{box-sizing:border-box}html,body,#app{min-height:100%}body{margin:0}button,a,input{font:inherit}button{color:inherit}.app-shell{background:var(--bg);min-height:100vh;display:grid}.sidebar-group{min-width:0;position:relative}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;gap:22px;height:100vh;padding:22px 16px;display:flex;position:sticky;top:0;overflow:hidden}.sidebar.collapsed{gap:18px;padding:22px 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.col-date{display:none}.create-folder-form{flex-direction:column;align-items:stretch}}