:root {
  --bg: #f7f8fb;
  --card: #ffffff;
  --text: #101828;
  --muted: #667085;
  --accent: #5b7cfa;
  --border: #e5e7eb;
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  margin: 24px;
  background: var(--bg);
  color: var(--text);
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
}

h1 {
  margin: 0 0 8px 0;
  font-weight: 700;
}

.controls {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 12px;
}

.controls label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.controls input[type="checkbox"] {
  cursor: pointer;
}

.note {
  color: var(--muted);
  font-size: 13px;
  margin: 6px 0 18px;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  border: 1px solid var(--border);
  padding: 6px 8px;
  text-align: right;
}

th:first-child, td:first-child {
  text-align: left;
  position: sticky;
  left: 0;
  background: var(--card);
  z-index: 1;
}

thead th {
  background: #f6f6f6;
  font-weight: 600;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody tr:hover {
  background: rgba(0, 0, 0, 0.02);
}

.tag {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  background: #eef;
  color: #223;
  font-size: 12px;
  margin-left: 6px;
}

#rmsChart {
  margin: 16px 0;
}

.error {
  background: #fee;
  border: 1px solid #fcc;
  color: #c33;
  padding: 10px 12px;
  border-radius: 8px;
  margin: 12px 0;
}

.hidden {
  display: none;
}

.series-select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
}

.series-select:hover {
  border-color: var(--accent);
}

.pivot-table {
  margin-top: 8px;
}

.pivot-table tbody tr:last-child {
  border-top: 2px solid var(--border);
}

.loading-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  margin: 24px 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
}

.loading-indicator.hidden {
  display: none;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}