body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: #f8fafc;
    color: #1f2933;
} 

header {
  padding: 1rem 1.5rem;
  background: #2f4f4f;
  color: white;
}

.layout {
  display: grid;
  grid-template-columns: 1fr;
}

/* Two-column layout on larger screens */
@media (min-width: 900px) {
  .layout {
    grid-template-columns: 1.2fr 1fr;
    height: calc(100vh - 110px);
  }
}

section {
  display: flex;
  flex-direction: column;
}

section h2 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
#map-container{
    background-color: blueviolet;
}
#chart-container {
    background-color: aquamarine;
}

.tabs {
  margin-bottom: 1rem;
}

.tab-button {
  padding: 0.5rem 1rem;
  border: none;
  background: #e5e7eb;
  cursor: pointer;
  margin-right: 0.25rem;
}

.tab-button.active {
  background: #2563eb;
  color: white;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}