:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #f7f8fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #667085;
  --border: #d8dee9;
  --accent: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 28px 32px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

h1 {
  margin: 0 0 6px;
  font-size: 26px;
  font-weight: 700;
}

h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

p {
  margin: 0;
  color: var(--muted);
}

main {
  padding: 24px 32px 36px;
  display: grid;
  gap: 22px;
}

section {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px;
}

.toolbar {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  flex-wrap: wrap;
}

.field {
  display: grid;
  gap: 5px;
}

label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
}

select {
  min-width: 190px;
  padding: 7px 30px 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text);
}

.meta {
  margin-left: auto;
  color: var(--muted);
  font-size: 13px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 700;
  background: #f2f5f9;
}

.charts {
  display: grid;
  gap: 18px;
}

.chart-panel {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.chart {
  width: 100%;
  min-height: 230px;
}

.chart.empty {
  display: grid;
  place-items: center;
  min-height: 150px;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: 6px;
}

svg {
  width: 100%;
  height: auto;
  display: block;
}

.axis {
  stroke: #9aa4b2;
  stroke-width: 1;
  fill: none;
}

.axis-label {
  fill: var(--muted);
  font-size: 13px;
}

.raw-point {
  fill: #111827;
  opacity: 0.18;
}

a {
  color: var(--accent);
}

@media (max-width: 720px) {
  header,
  main {
    padding-left: 16px;
    padding-right: 16px;
  }

  select {
    min-width: 100%;
  }

  .field {
    width: 100%;
  }

  .meta {
    margin-left: 0;
  }
}