#contrails { position: relative; height: 500px; max-width: 960px; margin: 0 auto; }
canvas.canvas { pointer-events: none; }
.canvas { position: absolute; top: 0; left: 0; }
.land { fill: #dddddd; }
.border { fill: none; stroke-width: 1px; }
.interior { stroke: white; }
.exterior { stroke: #bbbbbb; }
#tooltip {
	font-size: 10pt;
	font-weight: 900;
	fill: white;
	text-shadow: 1px 1px 0 #252525, 1px -1px 0 #252525, -1px 1px 0 #252525, -1px -1px 0 #252525;
	text-align: center;
}
#viz-container { background: var(--bs-body-bg); padding: 1rem; border-radius: 0.5rem; overflow: hidden; }
[data-bs-theme="dark"] .land { fill: #3a3a3a; }
[data-bs-theme="dark"] .interior { stroke: #555; }
[data-bs-theme="dark"] .exterior { stroke: #666; }