/* ── chart.css ── */

.chart-header {
  display: flex; align-items: center;
  padding: 20px 20px 12px;
  gap: 10px;
}
.chart-title { font-size: 18px; font-weight: 700; flex: 1; }
.chart-type-badge {
  background: var(--teal-bg);
  color: var(--teal-dark);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 13px; font-weight: 600;
}

.chart-tabs {
  display: flex; gap: 6px;
  padding: 0 16px 12px;
}
.chart-tab {
  flex: 1;
  padding: 8px 4px;
  border-radius: 20px;
  border: none;
  background: var(--card);
  font-size: 13px;
  font-family: var(--font-body);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all .2s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.chart-tab.active {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 4px 12px rgba(27,191,165,0.35);
}

.chart-meta {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 20px 8px;
  font-size: 12px; color: var(--text-muted);
}
.chart-meta-filter { color: var(--teal); cursor: pointer; }

.chart-canvas-wrap {
  margin: 0 16px;
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 16px 8px 8px;
  box-shadow: var(--card-shadow);
  position: relative;
}
#weightChart { width: 100%; height: 180px; }

.chart-hint {
  text-align: center;
  font-size: 12px; color: var(--text-muted);
  padding: 8px 0 4px;
}

/* Summary cards */
.chart-summary-row {
  display: grid; grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 8px;
  padding: 16px;
}
.chart-sum-card {
  background: var(--card);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  box-shadow: var(--card-shadow);
}
.chart-sum-val {
  font-family: var(--font-num);
  font-size: 20px; font-weight: 800;
  color: var(--text-primary);
}
.chart-sum-val.neg { color: var(--teal-dark); }
.chart-sum-label { font-size: 11px; color: var(--text-muted); white-space: nowrap; }