:root{--bg:#f6f7f9;--panel:#ffffff;--text:#1a1d21;--muted:#5c6470;--accent:#2454ff;--border:#e2e5ea;--danger:#c0392b}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}.shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.sidebar{background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:1rem;gap:1rem}.brand{font-weight:700;font-size:1.2rem}.sidebar nav{display:flex;flex-direction:column;gap:.25rem}.nav-link{padding:.4rem .6rem;border-radius:6px;color:var(--muted)}.nav-link:hover{background:var(--bg);color:var(--text)}.sidebar-footer{margin-top:auto;display:grid;grid-gap:.5rem;gap:.5rem}.user-email{font-size:.8rem;color:var(--muted);overflow-wrap:anywhere}.signout{width:100%;padding:.4rem;border:1px solid var(--border);border-radius:6px;background:var(--panel)}.content{padding:2rem}