html, body { height: 100%; margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial; }
header { padding: 12px 14px; border-bottom: 1px solid #ddd; }
h1 { margin: 0 0 6px 0; font-size: 18px; }
#stats { display: flex; gap: 16px; flex-wrap: wrap; }
.muted { opacity: 0.7; }
#map { height: calc(100vh - 86px); }