:root {
  --bg: #f7f4ee;
  --panel-bg: #ffffff;
  --text: #262220;
  --text-muted: #5c5650;
  --border: #ddd6cb;
  --accent: #2c6e63;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Verdana, Tahoma, Arial, sans-serif;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
}

.app-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.app-header h1 {
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  margin: 0;
  color: var(--accent);
}

.mode-select-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.mode-select-label {
  color: var(--text-muted);
  white-space: nowrap;
}

#mode-select {
  font-size: 1rem;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-bg);
  color: var(--text);
}

.app-main {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.map-panel {
  flex: 1 1 520px;
  min-width: 300px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}

#texas-map {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.map-hint {
  margin: 8px 4px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

/* Region fills */
.region-shape {
  stroke: #ffffff;
  stroke-width: 2.5;
  stroke-linejoin: round;
  cursor: pointer;
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 0.25s ease, filter 0.25s ease, opacity 0.25s ease;
}

.region-shape:hover {
  filter: brightness(1.08);
}

.region-shape:focus-visible {
  outline: 3px solid #1b4b6b;
  outline-offset: 2px;
}

#regions-layer.has-active .region-shape {
  opacity: 0.45;
  filter: saturate(0.75);
}

#regions-layer.has-active .region-shape.is-active {
  opacity: 1;
  filter: brightness(1.16) saturate(1.15) drop-shadow(0 7px 9px rgba(0,0,0,0.35));
  transform: translateY(-5px) scale(1.05);
}

#outline-layer path {
  fill: none;
  stroke: #8a8378;
  stroke-width: 1.5;
}

/* Subregion name labels — Mode A only */
.subregion-label {
  font-size: 9px;
  fill: #2b2b2b;
  font-weight: 600;
  pointer-events: none;
  paint-order: stroke;
  stroke: #ffffff;
  stroke-width: 3px;
  stroke-linejoin: round;
}

/* Landform features (escarpments, etc.) — italic to distinguish from subregions */
.landform-label {
  font-size: 9px;
  fill: #6b4f3a;
  font-weight: 600;
  font-style: italic;
  pointer-events: none;
  paint-order: stroke;
  stroke: #ffffff;
  stroke-width: 3px;
  stroke-linejoin: round;
}

/* Region name labels on the map — the standout titles */
.region-name-label {
  font-size: 15.5px;
  font-weight: 800;
  letter-spacing: 0.8px;
  fill: #1e3a8a;
  text-anchor: middle;
  pointer-events: none;
  paint-order: stroke;
  stroke: rgba(255, 255, 255, 0.9);
  stroke-width: 4px;
  stroke-linejoin: round;
}

/* Cities */
.city-dot {
  fill: #1b1b1b;
  stroke: #ffffff;
  stroke-width: 1px;
  pointer-events: none;
}

.city-label {
  font-size: 9.5px;
  fill: #1b1b1b;
  font-weight: 600;
  pointer-events: none;
  paint-order: stroke;
  stroke: #ffffff;
  stroke-width: 3px;
  stroke-linejoin: round;
}

/* Info panel */
.info-panel {
  flex: 1 1 340px;
  min-width: 280px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  min-height: 320px;
}

.info-panel h2 {
  margin-top: 0;
  color: var(--accent);
}

.info-panel-default p,
.info-panel-default h2 {
  color: var(--text-muted);
}

.info-panel .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0 14px;
}

.info-panel .tag {
  background: #eef2ee;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 0.8rem;
  color: var(--text);
}

.info-panel .region-swatch {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  margin-right: 8px;
  vertical-align: -2px;
  border: 1px solid rgba(0,0,0,0.2);
}

.info-panel p {
  line-height: 1.55;
  font-size: 0.98rem;
}

@media (max-width: 760px) {
  .app-main {
    flex-direction: column;
  }
  .info-panel {
    min-height: 0;
  }
}