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50%,var(--surface) 70%);background-size:200% 100%;animation:chart-shimmer 1.3s ease-in-out infinite}@keyframes chart-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media(prefers-reduced-motion:reduce){.chart-skeleton{animation:none}}.error{margin-top:1.5rem;color:var(--error)}