:root{--bg:#0b1020;--panel:#12182a;--panel2:#171f35;--line:#28324d;--text:#f4f7ff;--muted:#95a2bd;--blue:#3b82f6;--green:#22c55e;--red:#ef4444;--shadow:0 16px 40px rgba(0,0,0,.2)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px Inter,Segoe UI,Arial,sans-serif}.sidebar{position:fixed;inset:0 auto 0 0;width:236px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column}.sidebar header{padding:18px 16px;text-align:center;background:linear-gradient(145deg,#171d31,#27365f)}.sidebar header img{height:42px;max-width:54px;object-fit:contain}.sidebar h1{font-size:18px;letter-spacing:2px;margin:3px 0}.sidebar header p{font-size:11px;color:#c7d2fe;margin:0}.sidebar nav{padding:10px;overflow:auto;flex:1}.sidebar nav a{display:flex;align-items:center;gap:12px;color:var(--muted);text-decoration:none;padding:10px 12px;margin:2px 0;border-radius:10px;font-weight:600;font-size:13px}.sidebar nav 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