:root{--bg: #0f1220;--bg-panel: #171b2e;--bg-hover: #1e2340;--border: #2a3052;--text: #e8eaf6;--text-dim: #9aa1c4;--accent: #6c7bff;--accent-hover: #8591ff;--green: #3ecf8e;--amber: #f5b83d;--red: #ff6b6b;--radius: 10px;font-size:15px}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}.shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--bg-panel);border-right:1px solid var(--border);padding:1.25rem .9rem;display:flex;flex-direction:column;gap:.35rem}.logo{font-size:1.3rem;font-weight:800;letter-spacing:.18em;padding:0 .6rem 1.1rem;color:var(--text)}.logo span{color:var(--accent)}.sidebar a.nav-item{padding:.55rem .75rem;border-radius:8px;color:var(--text-dim);font-weight:500}.sidebar a.nav-item:hover,.sidebar 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