/* ─── Progress Dashboard ──────────────────────────────── */

/* Hero stats */
.pg-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.pg-stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.pg-stat-card:hover { transform: translateY(-2px); }

.pg-stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
}

.pg-stat-icon.vocab    { background: #EEF2FF; }
.pg-stat-icon.streak   { background: #FEF3C7; }
.pg-stat-icon.accuracy { background: #D1FAE5; }
.pg-stat-icon.writing  { background: #DBEAFE; }

[data-theme="dark"] .pg-stat-icon.vocab    { background: rgba(79,70,229,0.15); }
[data-theme="dark"] .pg-stat-icon.streak   { background: rgba(245,158,11,0.15); }
[data-theme="dark"] .pg-stat-icon.accuracy { background: rgba(16,185,129,0.15); }
[data-theme="dark"] .pg-stat-icon.writing  { background: rgba(59,130,246,0.15); }

.pg-stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  letter-spacing: -0.03em;
}

.pg-stat-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pg-stat-sub {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Charts row */
.pg-charts-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.pg-chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.pg-chart-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.pg-chart-canvas {
  width: 100%;
  display: block;
}

/* Bottom row */
.pg-bottom-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

/* Daily goal */
.pg-goal-bar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--shadow-sm);
}

.pg-goal-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.pg-goal-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
}

.pg-goal-val {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Activity feed */
.pg-activity-feed {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--shadow-sm);
}

.pg-activity-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.pg-activity-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pg-activity-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.875rem;
}

.pg-activity-item:last-child { border-bottom: none; }

.pg-activity-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.pg-activity-dot.vocab    { background: var(--color-primary); }
.pg-activity-dot.practice { background: var(--color-success); }
.pg-activity-dot.writing  { background: var(--color-info); }

.pg-activity-text  { flex: 1; color: var(--color-text-secondary); }
.pg-activity-date  { color: var(--color-text-faint); white-space: nowrap; }

/* Accuracy chart */
.pg-accuracy-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.pg-accuracy-item {
  display: grid;
  grid-template-columns: 100px 1fr 40px;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.875rem;
}

.pg-accuracy-label { color: var(--color-text-secondary); }
.pg-accuracy-val   { color: var(--color-text-muted); text-align: right; }

@media (max-width: 1024px) {
  .pg-stats-grid  { grid-template-columns: repeat(2, 1fr); }
  .pg-charts-row  { grid-template-columns: 1fr; }
  .pg-bottom-row  { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .pg-stats-grid { grid-template-columns: repeat(2, 1fr); }
}