body{margin:0;font-family:Inter,system-ui,Arial;background:#0f172a;color:#fff}.layout{display:flex;height:100vh}.sidebar{width:220px;background:#020617;border-right:1px solid #1e293b;padding:16px}.sidebar a{display:block;padding:10px;color:#94a3b8;text-decoration:none;border-radius:8px;margin-bottom:4px}.sidebar a.active,.sidebar a:hover{background:#1e293b;color:#fff}.page{flex:1;padding:24px}