/* population_dynamics.css — solid logistic curve (.lv-curve) + dashed exponential + capacity line. */
.lv-curve-dash { stroke: #fb7185; stroke-width: 2; stroke-dasharray: 6 4; opacity: 0.85; }
.lv-asym { stroke: rgba(52, 211, 153, 0.5); stroke-width: 1.4; stroke-dasharray: 4 4; }