/* venn_sets.css — universal-set rectangle, set outlines/labels and the shaded region fill. */
.lv-univ { fill: rgba(255, 255, 255, 0.03); stroke: rgba(148, 163, 184, 0.4); stroke-width: 1.2; }
.lv-univlbl { fill: #9fb0c3; font-size: 15px; font-style: italic; }
.lv-setring { fill: none; stroke: rgba(203, 213, 225, 0.8); stroke-width: 1.8; }
.lv-setlbl { fill: #e8eef6; font-size: 17px; font-weight: 800; text-anchor: middle; }
.lv-fill { fill: rgba(56, 189, 248, 0.45); }