/* ============================================
   Cards & Dashboard
   ============================================ */
.dashboard {
  display: flex;
  flex-direction: column;
  gap: calc(var(--spacing-unit) * 2.5);
}

.progress-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: calc(var(--spacing-unit) * 2);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

@media (hover: hover) {
  .stat-card:hover {
    box-shadow: var(--shadow-md);
  }
}

/* Circular Progress */
.stat-card-progress {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.circular-progress {
  display: block;
}

.circular-progress .progress-bg {
  stroke: var(--color-border);
  opacity: 0.3;
}

.circular-progress .progress-bar {
  stroke: url(#progress-gradient);
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s ease;
}

.stat-card-value {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 2px;
}

.stat-total {
  font-size: 0.75rem;
  color: var(--color-text-light);
  font-weight: 500;
  line-height: 1;
}

/* Stat Card Info */
.stat-card-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  width: 100%;
}

.stat-label {
  font-size: 1rem;
  color: var(--color-text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--spacing-unit) * 0.375);
  margin: 0;
}

.stat-remaining {
  color: var(--color-text-light);
  font-size: 0.875rem;
  margin: 0;
}

.stat-complete {
  color: var(--color-success);
  font-weight: 600;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--spacing-unit) * 0.375);
  margin: 0;
}

.in-progress-drive {
  position: relative;
}

.in-progress-drive .duration-value {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.in-progress-drive .drive-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  width: 100%;
  margin-top: var(--spacing-md);
}

.drive-history {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow);
}

.drive-history h3 {
  margin-bottom: var(--spacing-xl);
}

.view-all-link {
  margin: var(--spacing-xl) auto 0;
  text-align: center;
  padding-top: var(--spacing-lg);
  max-width: 350px;
}

.view-all-link .button {
  width: 100%;
  min-height: 48px;
}

.empty-state {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  color: var(--color-text-light);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.tooltip-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: help;
  color: var(--color-text-light);
  transition: var(--transition);
}

.tooltip-trigger:hover {
  color: var(--color-primary);
}

.tooltip-trigger::after {
  content: attr(data-tooltip);
  position: absolute;
  top: calc(100% + var(--spacing-sm));
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-text);
  color: var(--color-surface);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  font-size: 0.8125rem;
  font-weight: 400;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: var(--transition);
  z-index: 1000;
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  max-width: 280px;
  white-space: normal;
  text-align: center;
  line-height: 1.4;
}

.tooltip-trigger:hover::after,
.tooltip-trigger:active::after {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   Activity Calendar (GitHub-style)
   ============================================ */
.activity-calendar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: calc(var(--spacing-unit) * 2);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

@media (hover: hover) {
  .activity-calendar:hover {
    box-shadow: var(--shadow-md);
  }
}

.activity-calendar-grid-wrapper {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.activity-calendar-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  width: 100%;
  align-items: center;
}

.activity-calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  width: 100%;
}

.activity-day {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  cursor: pointer;
}

.activity-day.empty {
  border: none;
  background: transparent;
  cursor: default;
}

.activity-day.level-0 {
  background: var(--color-border-light);
  border-color: var(--color-border);
}

.activity-day.level-1 {
  background: #c7d2fe;
  border-color: #a5b4fc;
}

.activity-day.level-2 {
  background: #93c5fd;
  border-color: #60a5fa;
}

.activity-day.level-3 {
  background: #3b82f6;
  border-color: #2563eb;
}

.activity-day.level-4 {
  background: #1d4ed8;
  border-color: #1e40af;
}

/* Hover effect for desktop */
@media (hover: hover) {
  .activity-day:not(.empty):hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
    z-index: 10;
    border-width: 2px;
  }
}

/* Active/tap effect for mobile */
@media (hover: none) {
  .activity-day:not(.empty):active {
    transform: scale(0.95);
    opacity: 0.8;
  }
}

.activity-calendar-legend {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
  font-size: 0.6875rem;
  color: var(--color-text-light);
}

.legend-label {
  margin: 0 2px;
  font-weight: 500;
}

.activity-calendar-legend .activity-day {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  border-radius: 2px;
}

/* Mobile Card Styles */
@media (max-width: 768px) {
  .dashboard {
    gap: calc(var(--spacing-unit) * 2);
  }

  .progress-summary {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .stat-card {
    padding: var(--spacing-xl);
  }

  .in-progress-drive.stat-card {
    display: none;
  }

  .stat-number {
    font-size: 1.75rem;
  }

  .stat-label {
    font-size: 0.9375rem;
  }

  .drive-history {
    padding: 0;
    border-radius: 0;
    background-color: transparent;
    border: none;
    box-shadow: none;
  }

  .view-all-link {
    display: none;
  }

  .empty-state {
    padding: calc(var(--spacing-unit) * 2.5) var(--spacing-lg);
    font-size: 0.875rem;
  }

  .activity-calendar {
    padding: var(--spacing-xl);
  }

  .activity-calendar-grid {
    gap: 5px;
  }

  .activity-day {
    border-radius: 3px;
  }

  .activity-calendar-legend {
    font-size: 0.625rem;
  }

  .activity-calendar-legend .activity-day {
    width: 10px;
    height: 10px;
  }
}

@media (max-width: 480px) {
  .stat-card h2 {
    font-size: 2rem;
  }

  .tooltip-trigger::after {
    max-width: 200px;
    font-size: 0.75rem;
    padding: calc(var(--spacing-unit) * 0.625) var(--spacing-lg);
  }
}