:root{--bg:#f4f6fb;--card:#fff;--ink:#172033;--muted:#68758c;--line:#e5e9f2;--brand:#5b5cf0;--brand2:#7c3aed;--ok:#0f9f6e;--warn:#d97706;--bad:#dc2626;--side:#111827}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif}.shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:248px;background:var(--side);padding:24px 16px;color:#fff;display:flex;flex-direction:column;z-index:20}.brand{font-size:25px;font-weight:900;color:#fff;text-decoration:none;padding:0 12px 24px}.brand span{color:#8b8cff}.sidebar nav{display:grid;gap:5px}.sidebar nav a{display:flex;gap:12px;align-items:center;color:#cbd5e1;text-decoration:none;padding:11px 13px;border-radius:10px;font-weight:650}.sidebar nav a:hover,.sidebar nav a.active{background:#242d3f;color:#fff}.sidebar nav b{width:20px;text-align:center}.side-foot{margin-top:auto;border-top:1px solid #2f394c;padding:16px 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