/* Stats tab: period picker, stat cards, bar chart, heatmaps. */

.period-bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }
.period-label { font-size: 13px; font-weight: 600; color: var(--text-subtle); text-transform: uppercase; letter-spacing: .04em; }
.segmented { display: flex; gap: 4px; background: var(--accent-soft); border-radius: var(--radius-sm); padding: 3px; }
.segmented button {
  padding: 5px 12px; font-size: 13px; font-weight: 500; font-family: inherit;
  border: none; border-radius: 6px; cursor: pointer;
  background: transparent; color: var(--accent-alt);
  transition: background .12s, color .12s;
}
.segmented button[aria-pressed="true"] { background: var(--accent); color: var(--on-accent); }

/* Always 4 across or 2×2 — auto-fit left a lone card on its own row at mid widths. */
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 20px; }
@media (min-width: 620px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 14px 16px; text-align: center; }
.stat-label { font-size: 11px; color: var(--text-soft); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 6px; }
.stat-val { font-size: 26px; font-weight: 700; color: var(--text); }
.stat-val.accent { color: var(--accent); }
.stat-sub { font-size: 11px; color: var(--text-faint); margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.chart-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px 18px; margin-bottom: 20px; }
.chart-box { position: relative; width: 100%; height: 180px; }
.chart-fallback { font-size: 13px; color: var(--text-faint); padding: 60px 0; text-align: center; }

/* ── Heatmap ── */
.heatmap-block { margin-bottom: 20px; }
.heatmap-header { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.heatmap-name { font-size: 14px; font-weight: 600; color: var(--text); }
.heatmap-meta { font-size: 12px; color: var(--text-faint); }
.heatmap-note { font-size: 12px; color: var(--text-soft); font-style: italic; margin-bottom: 8px; }
/* No left padding: the sticky day labels must sit flush with the scroll edge or cells peek out beside them. */
.heatmap-grid-wrap { display: flex; align-items: flex-start; gap: 4px; overflow-x: auto; padding: 3px 3px 4px 0; }
.hm-col { display: flex; flex-direction: column; gap: 3px; }
.hm-labels { display: flex; flex-direction: column; gap: 3px; margin-right: 2px; position: sticky; left: 0; background: var(--surface); }
.hm-dl { width: 18px; height: 13px; font-size: 9px; color: var(--text-ghost); display: flex; align-items: center; }
.hm-cell { width: 13px; height: 13px; border-radius: 3px; background: var(--cell-empty); flex-shrink: 0; transition: opacity .1s; }
.hm-cell[data-date] { cursor: pointer; }
.hm-cell[data-date]:hover { opacity: .75; }
.hm-cell.done { background: var(--success); }
.hm-cell.has-note { background: var(--accent-alt); }
/* Counted habit, part-way to its goal: --p (0–1) sets how much green shows. */
.hm-cell.partial { position: relative; }
.hm-cell.partial::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  /* Capped well below a full cell, so "11 of 12" never reads as done. */
  background: var(--success); opacity: calc(.12 + var(--p) * .43);
}
/* Rest day, or outside the habit's lifetime. */
.hm-cell.off { background: transparent; box-shadow: inset 0 0 0 1px var(--cell-empty); }
.hm-cell.today { outline: 2px solid var(--accent); outline-offset: 1px; }
.hm-cell.future { background: transparent; }
.hm-legend { margin-top: 8px; font-size: 11px; color: var(--text-ghost); display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.hm-legend span { display: inline-flex; align-items: center; gap: 4px; }
.hm-key { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }
.hm-key.done { background: var(--success); }
.hm-key.has-note { background: var(--accent-alt); }
.hm-key.partial { position: relative; }
.hm-key.partial::after { content: ''; position: absolute; inset: 0; border-radius: inherit; background: var(--success); opacity: .35; }
.hm-key.off { box-shadow: inset 0 0 0 1px var(--text-ghost); }
.heatmap-block.archived { opacity: .75; }

/* ── Review ── */
.review { padding: 16px 18px; margin-bottom: 20px; display: grid; gap: 22px; }
.review-head { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.trend-overall { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 10px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.trend-was { font-size: 13px; font-weight: 400; color: var(--text-faint); }
.trend-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.trend-table th, .trend-table td { padding: 6px 4px; text-align: right; border-top: 1px solid var(--border); font-variant-numeric: tabular-nums; }
.trend-table thead th { border-top: none; font-size: 11px; font-weight: 500; color: var(--text-faint); text-transform: uppercase; letter-spacing: .04em; }
.trend-table th[scope="row"], .trend-table thead th:first-child { text-align: left; font-weight: 400; color: var(--text); overflow-wrap: anywhere; }
.trend-table td { color: var(--text-muted); white-space: nowrap; }
.delta { font-size: 12px; font-weight: 600; white-space: nowrap; }
.delta.up { color: var(--success); }
.delta.down { color: var(--danger); }
.delta.flat { color: var(--text-faint); font-weight: 400; }
.tag { font-size: 10px; color: var(--text-faint); border: 1px solid var(--border); border-radius: 4px; padding: 0 4px; vertical-align: 1px; }

.weekday-bars { display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; align-items: end; }
.wd { text-align: center; }
.wd-track { height: 70px; background: var(--cell-empty); border-radius: 4px; display: flex; align-items: flex-end; overflow: hidden; }
.wd-bar { width: 100%; background: var(--chart-bar); }
.wd.worst .wd-bar { background: var(--danger); opacity: .75; }
.wd-pct { font-size: 11px; color: var(--text-muted); margin-top: 4px; font-variant-numeric: tabular-nums; }
.wd-label { font-size: 11px; color: var(--text-faint); }
.review-line { font-size: 13px; color: var(--text-muted); margin-top: 10px; }
.review-line strong { color: var(--text); }

@media (max-width: 500px) {
  .stat-val { font-size: 22px; }
}