/* rate_graph.css — gas-volume curve, initial tangent, plateau (see rate_graph.js). */
.rg2-tan { stroke: #fbbf24; stroke-width: 1.8; stroke-dasharray: 5 3; }
.rg2 [data-cat].is-on { border-color: #34d399; background: color-mix(in srgb, #34d399 18%, transparent); color: #d1fae5; }