*{box-sizing:border-box;margin:0;padding:0}:root{--blue: #2563eb;--blue-light: #eff6ff;--blue-dark: #1d4ed8;--green: #16a34a;--green-light: #f0fdf4;--red: #dc2626;--red-light: #fef2f2;--yellow: #d97706;--yellow-light: #fffbeb;--gray-50: #f8fafc;--gray-100: #f1f5f9;--gray-200: #e2e8f0;--gray-400: #94a3b8;--gray-500: #64748b;--gray-700: #334155;--gray-900: #0f172a;--white: #ffffff;--font: "DM Sans", system-ui, sans-serif;--mono: "DM Mono", monospace;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08)}body{font-family:var(--font);background:var(--gray-50);color:var(--gray-700);line-height:1.5;-webkit-font-smoothing:antialiased}#root{min-height:100vh}.layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--gray-900);padding:24px 16px;display:flex;flex-direction:column;gap:32px;flex-shrink:0}.sidebar-logo{display:flex;align-items:center;gap:10px;color:#fff}.sidebar-logo 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1000px){.kpi-grid{grid-template-columns:repeat(2,1fr)}.chart-grid,.demand-grid,.explain-cols,.upload-card{grid-template-columns:1fr}}@media (max-width: 700px){.sidebar{display:none}.main-content{padding:16px}.kpi-grid{grid-template-columns:1fr 1fr}}