:root{--navy:#111936;--navy2:#202c50;--mint:#79e6cf;--bg:#f3f6fb;--text:#172033;--muted:#64748b;--border:#dfe5ef;--white:#fff;--danger:#dc2626;--ok:#059669;--warn:#d97706;--radius:16px;--shadow:0 10px 30px rgba(15,23,42,.07)}*{box-sizing:border-box}html{font-size:16px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:var(--navy);color:#fff;display:flex;flex-direction:column;padding:22px 14px;z-index:50}.brand{display:flex;align-items:center;gap:12px;padding:0 9px 22px;border-bottom:1px solid rgba(255,255,255,.1)}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:13px;background:var(--mint);color:var(--navy);font-size:21px;font-weight:900}.brand b,.brand 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