:root {
  --bg: #f6f2e8;
  --bg-accent: #e8dcc8;
  --text: #1d252f;
  --muted: #506072;
  --card: #fffdf8;
  --line: #d1c5b2;
  --highlight: #0c7f6f;
  --highlight-soft: #9fe4cf;
  --point: #156f64;
  --point-selected: #ff7a18;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 10% 0%, var(--bg-accent) 0%, transparent 45%),
    radial-gradient(circle at 90% 100%, #d5eadf 0%, transparent 40%),
    var(--bg);
}

.layout {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2.25rem 1.1rem 3rem;
}

.hero h1 {
  margin: 0.2rem 0 0.6rem;
  font-size: clamp(2rem, 4.7vw, 3rem);
  line-height: 1.06;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  color: var(--highlight);
  font-weight: 700;
}

.subcopy {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
}

.meta {
  margin: 1.2rem 0 0.8rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-top: 1rem;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 12px 26px rgba(29, 37, 47, 0.06);
}

.map-panel {
  display: flex;
  flex-direction: column;
}

.status {
  margin: 0.3rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.station-map {
  width: 100%;
  flex: 1;
  min-height: 480px;
  border-radius: 14px;
  border: 1px solid var(--line);
  overflow: hidden;
}

.station-title {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  color: var(--text);
}

.chart-panel {
  display: flex;
  flex-direction: column;
  min-height: 480px;
  max-height: 600px;
}

.station-title {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  color: var(--text);
}

#stationChart {
  flex: 1;
  width: 100%;
  max-height: 520px;
}

.heatmap-panel {
  margin-top: 1.2rem;
}

.snapshot-panel {
  margin-top: 1.2rem;
}

.snapshot-controls {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.7rem;
}

.snapshot-label {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 600;
}

#snapshotSlider {
  width: 100%;
}

.snapshot-map {
  width: 100%;
  min-height: 460px;
  border-radius: 12px;
  border: 1px solid var(--line);
  overflow: hidden;
}

.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.65rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.heatmap-gradient {
  width: 220px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: linear-gradient(
    90deg,
    #440154 0%,
    #3b528b 25%,
    #21918c 50%,
    #5ec962 75%,
    #fde725 100%
  );
}

.heatmap-wrapper {
  width: 100%;
  max-height: 560px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbf8f2;
}

#heatmapCanvas {
  display: block;
}

@media (max-width: 1000px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .station-map {
    min-height: 350px;
  }

  .chart-panel {
    min-height: 350px;
  }

  .heatmap-wrapper {
    max-height: 460px;
  }

  .snapshot-map {
    min-height: 360px;
  }
}

@media (max-width: 700px) {
  .layout {
    padding-top: 1.2rem;
  }

  .panel {
    border-radius: 12px;
  }

  .station-map {
    min-height: 300px;
  }

  .chart-panel {
    min-height: 300px;
  }

  .heatmap-gradient {
    width: 140px;
  }

  .heatmap-wrapper {
    max-height: 360px;
  }

  .snapshot-map {
    min-height: 300px;
  }
}