/* ==========================================================================
   Teacher Dashboard & Analytics Matrix Styles
   ========================================================================== */

/* Metrics Overview Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.metric-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.metric-icon-indigo { background: rgba(79, 70, 229, 0.12); color: var(--primary); }
.metric-icon-cyan { background: rgba(14, 165, 233, 0.12); color: var(--secondary); }
.metric-icon-amber { background: rgba(245, 158, 11, 0.12); color: var(--warning); }
.metric-icon-emerald { background: rgba(16, 185, 129, 0.12); color: var(--success); }

.metric-info h4 {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.metric-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

/* Dashboard Filter Bar & Navigation Tabs */
.dashboard-nav-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  background: var(--bg-card);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.tab-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-primary);
  padding: 0.25rem;
  border-radius: var(--radius-md);
}

.tab-btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn.active {
  background: var(--bg-card);
  color: var(--primary);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* Section Cards & Tables */
.dashboard-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.75rem;
  overflow: hidden;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.data-table th, .data-table td {
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.825rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
  background: var(--primary-light);
}

.table-cell-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Submission Matrix Grid Cell Styles */
.matrix-cell {
  text-align: center;
  cursor: pointer;
  transition: transform 0.15s ease;
}

.matrix-cell:hover {
  transform: scale(1.05);
}

.matrix-badge {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  font-weight: 600;
  min-width: 75px;
}

/* Print Stylesheet for Printable Score Summaries */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .app-header, .dashboard-nav-bar, .header-actions, .btn, .modal-overlay {
    display: none !important;
  }

  .main-content {
    max-width: 100% !important;
    padding: 0 !important;
  }

  .dashboard-card {
    border: none !important;
    box-shadow: none !important;
  }

  .data-table th, .data-table td {
    border: 1px solid #cbd5e1 !important;
    padding: 0.5rem !important;
    color: #000000 !important;
  }
}