:root {
  --bg: #0f1419;
  --panel: #1a212b;
  --border: #2c3744;
  --text: #e6edf3;
  --muted: #93a1b0;
  --accent: #4ea1ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.4;
}

.site-header {
  padding: 24px 24px 8px;
}
.site-header h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 650;
}
.site-header .subtitle {
  color: var(--muted);
  font-weight: 400;
}
.site-header .note {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  max-width: 70ch;
}
.site-header a { color: var(--accent); }

.controls {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 24px 20px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 5;
  border-bottom: 1px solid var(--border);
}
.control {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.control select {
  font-size: 15px;
  padding: 8px 10px;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 220px;
  text-transform: none;
  letter-spacing: normal;
}

.panels {
  display: grid;
  gap: 20px;
  padding: 20px 24px 48px;
}
.panels.single { grid-template-columns: minmax(0, 760px); }
.panels.double { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (max-width: 880px) {
  .panels.double { grid-template-columns: minmax(0, 1fr); }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  min-width: 0;
}
.panel h2 {
  margin: 0 0 2px;
  font-size: 18px;
}
.panel .panel-sub {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
}

.summary {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 18px;
  font-size: 13px;
}
.summary th, .summary td {
  text-align: right;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
}
.summary th:first-child, .summary td:first-child { text-align: left; }
.summary thead th {
  color: var(--muted);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.chart-block { margin-bottom: 18px; }
.chart-block h3 {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}
.chart-wrap { position: relative; height: 180px; }

.status {
  padding: 24px 4px;
  color: var(--muted);
  font-size: 14px;
}
.status.error { color: #ff8a8a; }