:root{--bg:#f6f7f9;--panel:#fff;--text:#17191c;--muted:#6d7480;--line:#e6e8ec;--green:#178653;--green-dark:#0e643d;--black:#111;--danger:#b42318;--sidebar:#111315;--gold:#c9a861}*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:245px;background:var(--sidebar);color:#fff;padding:22px 16px;position:fixed;inset:0 auto 0 0;z-index:10}.brand{font-size:22px;font-weight:800;padding:8px 10px 24px;border-bottom:1px solid #2b2e32;margin-bottom:18px}.brand:first-letter{color:var(--gold)}.sidebar nav{display:grid;gap:6px}.sidebar nav a{padding:12px 13px;border-radius:9px;color:#d9dde3}.sidebar nav a:hover{background:#202428;color:#fff}.main{margin-left:245px;width:calc(100% - 245px)}.topbar{height:70px;background:#fff;border-bottom:1px solid 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