/* ===== SESSION HISTORY PAGE ===== */

/* Stat cards grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1rem;
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.4rem 1rem;
  text-align: center;
  gap: 0.3rem;
}

.stat-card__icon {
  font-size: 1.4rem;
  margin-bottom: 0.2rem;
  opacity: 0.7;
}

.stat-card__value {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--accent);
  line-height: 1.1;
  font-weight: 300;
}

.stat-card__label {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Activity chart */
.chart-block {
  padding: 1.2rem 1.4rem 0.8rem;
}

.week-chart {
  display: block;
  width: 100%;
  height: 120px;
  margin-top: 0.8rem;
}

/* Session list */
.session-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.session-item {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.session-item:hover {
  border-color: rgba(139, 124, 248, 0.3);
}

.session-icon {
  font-size: 1rem;
  width: 1.4rem;
  text-align: center;
}

.session-name {
  font-size: 0.88rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-dur {
  font-size: 0.8rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.session-date {
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}

/* Empty state */
.history-empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--muted);
  font-size: 0.88rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.history-cta {
  text-align: center;
  margin-top: 2rem;
  padding-bottom: 2rem;
}

.history-cta p {
  font-size: 0.88rem;
  color: var(--muted);
}

@media (max-width: 480px) {
  .session-item {
    grid-template-columns: auto 1fr auto;
  }
  .session-date {
    display: none;
  }
}

/* ===== MONTHLY CALENDAR ===== */
.hist-cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.hist-cal-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.hist-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.25rem;
}

.hist-cal-day-hdr {
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0;
}

.hist-cal-cell {
  aspect-ratio: 1;
  border-radius: 6px;
  background: var(--surface);
  border: 1px solid transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  cursor: default;
  position: relative;
  transition: border-color 0.15s;
}

.hist-cal-cell:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.hist-cal-cell.hist-cal-empty {
  background: transparent;
  border: none;
}

.hist-cal-cell.future {
  opacity: 0.35;
}

.hist-cal-cell.today {
  border-color: var(--accent);
}

.hist-cal-cell.level-0 { background: var(--surface); }
.hist-cal-cell.level-1 { background: rgba(139,124,248,0.18); }
.hist-cal-cell.level-2 { background: rgba(139,124,248,0.38); }
.hist-cal-cell.level-3 { background: rgba(139,124,248,0.65); }

.hist-cal-num {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1;
}

.hist-cal-dot {
  font-size: 0.58rem;
  color: var(--accent);
  font-weight: 700;
  line-height: 1;
}

.hist-cal-cell.level-2 .hist-cal-num,
.hist-cal-cell.level-3 .hist-cal-num { color: var(--text); }