:root{--navy:#0c2757;--blue:#2367e8;--teal:#09b69f;--green:#0fae79;--orange:#ff9a35;--purple:#8b5cf6;--red:#ef4444;--bg:#f6f9fd;--line:#e3eaf4;--muted:#67758f;--shadow:0 8px 26px rgba(24,58,110,.07)}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--navy);background:var(--bg);font-size:14px}button,input,select,textarea{font:inherit}button,a{transition:.18s ease}.app-shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.sidebar{background:#fff;border-right:1px solid var(--line);padding:22px 14px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;z-index:10}.brand{display:flex;align-items:center;gap:10px;padding:0 8px 22px}.brand-mark{font-size:36px;color:var(--teal);line-height:1}.brand strong{font-size:25px}.brand strong span{color:var(--teal)}.brand small{display:block;color:var(--muted);font-size:11px}.sidebar nav{display:grid;gap:7px}.sidebar nav 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