:root{--isp-primary:#2563eb;--isp-primary2:#06b6d4;--isp-purple:#7c3aed;--isp-dark:#07111f;--isp-sidebar:#0b1220;--isp-bg:#f4f7fb;--isp-card:#fff;--isp-border:#e2e8f0;--isp-text:#0f172a;--isp-muted:#64748b;--isp-success:#16a34a;--isp-danger:#dc2626;--isp-warning:#d97706;--sidebar-w:270px;--header-h:70px}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--isp-text);background:var(--isp-bg)}a{text-decoration:none}.app-shell{min-height:100vh;background:var(--isp-bg)}.app-sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-w);background:linear-gradient(180deg,#07111f 0%,#0b1628 48%,#0d1b30 100%);color:#cbd5e1;z-index:1045;box-shadow:12px 0 40px rgba(2,6,23,.16);display:flex;flex-direction:column}.sidebar-brand{height:var(--header-h);display:flex;align-items:center;gap:11px;padding:0 18px;border-bottom:1px solid rgba(255,255,255,.08);flex:0 0 auto}.sidebar-brand 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/* V7 UI reliability: Bootstrap Icons + arbitrary-depth navigation */
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.side-item.open>.side-sub{display:block}.side-sub .side-item .side-link{min-height:37px;padding:7px 9px;font-size:.80rem}.side-sub .side-sub{margin-left:14px}.side-chevron{transition:transform .18s ease}.side-item.open>.side-link .side-chevron{transform:rotate(90deg)}
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