:root{--primary-color:#2563eb;--primary-light:#3b82f6;--secondary-color:#f8fafc;--text-dark:#0f172a;--text-muted:#64748b;--success-color:#10b981;--danger-color:#ef4444;--bg-color:#f1f5f9;--card-bg:#fffffff2;--border-radius:16px;--card-shadow:0 10px 25px -5px #0000000d, 0 8px 10px -6px #00000003;--border-color:#e2e8f0}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background-color:var(--bg-color);color:var(--text-dark);-webkit-font-smoothing:antialiased}.dashboard-container{min-height:100vh;display:flex}.sidebar{border-right:1px solid var(--border-color);z-index:1000;background-color:#fff;flex-direction:column;width:260px;padding:1.5rem;transition:transform .3s,left .3s;display:flex}.sidebar-header-mobile{justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}.mobile-close-btn{color:var(--text-dark);cursor:pointer;background:0 0;border:none;display:none}.mobile-menu-btn{display:none!important}.sidebar-overlay{z-index:999;opacity:0;background-color:#00000080;transition:opacity .3s;display:none;position:fixed;inset:0}.sidebar-overlay.show{opacity:1;display:block}.sidebar-logo{color:var(--primary-color);align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;display:flex}.nav-menu{flex-direction:column;gap:.5rem;list-style:none;display:flex}.nav-item{cursor:pointer;color:var(--text-muted);border-radius:8px;align-items:center;gap:.75rem;padding:.75rem 1rem;font-weight:500;transition:all .2s;display:flex}.nav-item:hover,.nav-item.active{background-color:var(--primary-color);color:#fff}.submenu{flex-direction:column;gap:.25rem;margin-top:.25rem;padding-left:2.5rem;list-style:none;display:flex}.submenu-item{cursor:pointer;color:var(--text-muted);border-radius:8px;padding:.5rem .75rem;font-size:.9rem;transition:all .2s}.submenu-item:hover{color:var(--primary-color);background-color:#2563eb0d}.main-content{flex-direction:column;flex:1;gap:1.5rem;padding:2rem;display:flex;overflow-y:auto}.header{justify-content:space-between;align-items:center;display:flex}.header-title h1{color:var(--text-dark);font-size:1.8rem;font-weight:700}.header-title p{color:var(--text-muted);margin-top:.25rem;font-size:.9rem}.header-actions{gap:1rem;display:flex}.filter-select{border:1px solid var(--border-color);color:var(--text-dark);cursor:pointer;background-color:#fff;border-radius:8px;outline:none;padding:.5rem 1rem;font-weight:500}.kpi-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;display:grid}.kpi-card{background-color:var(--card-bg);border-radius:var(--border-radius);box-shadow:var(--card-shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid #fff6;flex-direction:column;gap:.5rem;padding:1.5rem;display:flex;overflow-x:auto}.kpi-header{color:var(--text-muted);justify-content:space-between;align-items:center;font-size:.95rem;font-weight:500;display:flex}.kpi-value{color:var(--text-dark);font-size:2rem;font-weight:700}.kpi-comparison{align-items:center;gap:.25rem;font-size:.85rem;font-weight:500;display:flex}.kpi-comparison.positive{color:var(--success-color)}.kpi-comparison.negative{color:var(--danger-color)}.kpi-comparison-text{color:var(--text-muted);font-weight:400}.charts-grid{grid-template-columns:2fr 1fr;gap:1.5rem;display:grid}.chart-card{background-color:var(--card-bg);border-radius:var(--border-radius);box-shadow:var(--card-shadow);border:1px solid #fff6;padding:1.5rem;overflow-x:auto}.chart-card h3{color:var(--text-dark);margin-bottom:1rem;font-size:1.1rem;font-weight:600}.chart-container{width:100%;height:300px;position:relative}.chart-container-pie{justify-content:center;width:100%;height:300px;display:flex;position:relative}.full-width-chart{grid-column:1/-1}@media (width<=1024px){.charts-grid{grid-template-columns:1fr}}@media (width<=768px){.sidebar{width:280px;padding:1rem;position:fixed;top:0;bottom:0;left:-280px}.sidebar.open{left:0}.mobile-close-btn{display:flex}.mobile-menu-btn{display:flex!important}.main-content{padding:1rem}.header{flex-direction:column;align-items:flex-start;gap:1rem}.header-actions{justify-content:space-between;width:100%}.kpi-grid{grid-template-columns:1fr}}