:root {
  --bg-dark: #0f172a;
  --bg-light: #1e293b;
  --border-color: #334155;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --accent-color: #2563eb;
}
html,
body {
  height: 100%;
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    "Helvetica Neue", Arial;
  background: #0b0f19;
  color: var(--text-primary);
}
#app {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100vh;
}
header {
  display: flex;
  align-items: center;
  padding: 0.65rem 1.2rem;
  background: var(--bg-dark);
  border-bottom: 1px solid #0b1220;
}
header h1 {
  margin: 0;
  font-size: 1.1rem;
  letter-spacing: 0.2px;
}

.main-container {
  display: grid;
  grid-template-columns: 1fr 400px;
  height: 100%;
  overflow: hidden;
}
#map-container {
  position: relative;
  height: 100%;
}
#map {
  width: 100%;
  height: 100%;
  cursor: pointer;
}
#right-panel {
  background: var(--bg-dark);
  padding: 1rem;
  overflow-y: auto;
  border-left: 1px solid #0b1220;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.panel {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 10;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(4px);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  min-width: 350px;
}
.panel p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0 0 10px;
  line-height: 1.4;
}
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.35rem;
}
button {
  border: 0;
  border-radius: 10px;
  padding: 0.48rem 0.76rem;
  font-weight: 700;
  background: #374151;
  color: #fff;
  cursor: pointer;
  transition: background-color 0.2s;
}
button.primary {
  background: var(--accent-color);
}
button:hover:not(:disabled) {
  opacity: 0.9;
}
button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
label {
  font-size: 0.9rem;
}
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0.4rem 0;
}
.stat {
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 8px;
  padding: 0.35rem 0.55rem;
  font-variant-numeric: tabular-nums;
}
h2 {
  font-size: 1.1rem;
  margin: 0 0 10px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.data-card {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
}
.data-card h3 {
  margin: 0 0 1rem 0;
  font-size: 1rem;
  color: var(--text-primary);
}
#chart-container {
  position: relative;
  height: 250px;
}
#top-individuals-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}
#top-individuals-table th,
#top-individuals-table td {
  padding: 6px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}
#top-individuals-table th {
  color: var(--text-secondary);
}
#top-individuals-table .chromosome {
  font-family: monospace;
  word-break: break-all;
}

#city-legend {
  font-size: 0.8rem;
  columns: 2;
  column-gap: 1rem;
}
#city-legend p {
  margin: 4px 0;
  display: flex;
  align-items: center;
}
.legend-color-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 8px;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.download-section {
  margin-top: 15px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-color);
}
.download-section .controls {
  justify-content: space-around;
}
.download-section p {
  margin-bottom: 8px;
}

.config-input {
  width: 80px;
  padding: 0.3rem;
  border-radius: 6px;
  background: #1f2937;
  color: white;
  border: 1px solid #374151;
  text-align: center;
}

.strategy-info h4 {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin: 0 0 8px 0;
}
.strategy-info ul {
  margin: 0 0 10px 10px;
  padding: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  list-style-type: none;
}
.strategy-info li {
  margin-bottom: 5px;
}

a {
  color: var(--text-secondary);
}