/* ==========================================================================
   Activity Heatmap
   GitHub-style contribution heatmap used on the dashboard.
   ========================================================================== */

.heatmap-container {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  justify-content: center;
  max-width: 100%;
  overflow-x: auto;
  padding: 10px;
}

.heatmap-day {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background-color: var(--dq-gray-100);
  border: 1px solid var(--dq-gray-200);
  cursor: pointer;
  transition: all var(--dq-transition-fast);
  position: relative;
  box-sizing: border-box;
}

/* ── Intensity Colors — Green Gradient ──────────────────────────────────── */

.heatmap-day.intensity-0 {
  background-color: var(--dq-gray-100);
  border-color: var(--dq-gray-200);
}

.heatmap-day.intensity-1 {
  background-color: #C8F2CE; /* light secondary tint */
  border-color: #B0E8B8;
}

.heatmap-day.intensity-2 {
  background-color: #8BE79A;
  border-color: #6FD980;
}

.heatmap-day.intensity-3 {
  background-color: #4DD95D;
  border-color: #3AC54B;
}

.heatmap-day.intensity-4 {
  background-color: var(--dq-secondary-dark);
  border-color: #22A82F;
}

.heatmap-day.intensity-5 {
  background-color: #1FA52E;
  border-color: #188723;
}

/* ── Special Day Styles ─────────────────────────────────────────────────── */

.heatmap-container .heatmap-day.heatmap-today {
  border: 3px solid var(--dq-warning) !important;
  border-radius: 4px !important;
  box-shadow: 0 0 8px rgba(252, 186, 4, 0.8) !important; /* --dq-warning glow */
  position: relative;
  z-index: 5;
}

.heatmap-container .heatmap-day.heatmap-today::before {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 2px solid var(--dq-warning);
  border-radius: var(--dq-radius-md);
  pointer-events: none;
  opacity: 0.6;
}

.heatmap-day.heatmap-exam-day {
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 14px;
  height: 14px;
}

.heatmap-day.heatmap-exam-day .socket-brand-icon {
  font-size: 10px;
  color: var(--dq-warning);
  line-height: 1;
  display: block;
}

/* ── Legend ──────────────────────────────────────────────────────────────── */

.heatmap-legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.heatmap-legend .heatmap-day {
  width: 12px;
  height: 12px;
  margin: 0 2px;
  cursor: default;
}

/* ── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 991px) {
  .heatmap-container {
    display: none !important;
  }

  .heatmap-legend {
    display: none !important;
  }
}