:root{--primary:#2563eb;--primary-hover:#1d4ed8;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--background:#f8fafc;--surface:#fff;--text:#1e293b;--text-muted:#64748b;--border:#e2e8f0;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a;--glass:#fffc;--sidebar-width:260px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}#root{min-height:100vh;display:flex}h1,h2,h3,h4{color:var(--text);font-weight:600}button{cursor:pointer;font:inherit;border:none;transition:all .2s}a{color:inherit;text-decoration:none}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:1.5rem}.card-title{color:var(--text-muted);margin-bottom:.5rem;font-size:.875rem;font-weight:500}.card-value{color:var(--text);font-size:1.5rem;font-weight:700}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:.5rem}.gap-4{gap:1rem}.grid{gap:1.5rem;display:grid}.grid-cols-4{grid-template-columns:repeat(4,1fr)}@media (width<=1024px){.grid-cols-4{grid-template-columns:repeat(2,1fr)}}@media (width<=640px){.grid-cols-4{grid-template-columns:1fr}}.sidebar{width:var(--sidebar-width);background:var(--surface);border-right:1px solid var(--border);flex-direction:column;height:100vh;padding:1.5rem;display:flex;position:fixed;top:0;left:0}.main-content{margin-left:var(--sidebar-width);flex:1;width:100%;max-width:1200px;padding:2rem}@media (width<=768px){.sidebar{width:0;display:none}.main-content{margin-left:0}}.nav-link{color:var(--text-muted);border-radius:var(--radius-md);align-items:center;gap:.75rem;margin-bottom:.25rem;padding:.75rem 1rem;display:flex}.nav-link:hover{color:var(--primary);background:#eff6ff}.nav-link.active{color:var(--primary);border-left:4px solid var(--primary);background:#eff6ff;border-top-left-radius:0;border-bottom-left-radius:0;font-weight:600}