:root{--bg:#fff;--sidebar:#f7f7f8;--soft:#f4f4f4;--line:#e8e8e8;--text:#1f1f1f;--muted:#6e6e73;--hover:#ececed;--dark:#212121;--code:#171717}*{box-sizing:border-box}html,body{background:var(--bg);min-height:100%;color:var(--text);margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,textarea,select{font:inherit}button{color:inherit}.app-shell{height:100dvh;display:flex;overflow:hidden}.sidebar{background:var(--sidebar);z-index:30;border-right:1px solid #f1f1f1;flex-direction:column;width:260px;min-width:260px;padding:9px;display:flex}.sidebar-topline{justify-content:space-between;align-items:center;padding:3px 4px 10px;display:flex}.brand-mark{color:#fff;letter-spacing:-.5px;background:#111;border-radius:9px;place-items:center;width:30px;height:30px;font-size:11px;font-weight:800;display:grid}.icon-button{cursor:pointer;background:0 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