/* ============================================
   EDUVAULT - Dashboard Shared Styles
   ============================================ */

.dashboard-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
  padding-top: var(--header-height);
}

/* ── Dashboard Sidebar ── */
.dash-sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-primary);
  padding: var(--space-6) 0;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
}

.dash-sidebar-profile {
  padding: 0 var(--space-6) var(--space-6);
  border-bottom: 1px solid var(--border-primary);
  margin-bottom: var(--space-5);
  text-align: center;
}

.dash-sidebar-profile .avatar-xl {
  margin: 0 auto var(--space-4);
}

.dash-sidebar-profile h3 {
  font-size: var(--fs-base);
  margin-bottom: var(--space-1);
}

.dash-sidebar-profile p {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

.dash-nav {
  padding: 0 var(--space-3);
}

.dash-nav-section {
  margin-bottom: var(--space-6);
}

.dash-nav-section-title {
  padding: 0 var(--space-4);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-3);
}

.dash-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  margin-bottom: var(--space-1);
}

.dash-nav-link:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.dash-nav-link.active {
  background: var(--accent-primary-muted);
  color: var(--accent-primary);
}

.dash-nav-link i {
  width: 20px;
  text-align: center;
  font-size: var(--fs-sm);
}

.dash-nav-link .nav-badge {
  margin-left: auto;
  min-width: 22px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-primary);
  color: var(--text-on-accent);
  font-size: 10px;
  font-weight: var(--fw-bold);
  border-radius: var(--radius-full);
  padding: 0 var(--space-2);
}

/* ── Dashboard Content ── */
.dash-content {
  padding: var(--space-8);
  overflow-y: auto;
}

.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.dash-header h1 {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-extrabold);
}

.dash-header p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-top: var(--space-1);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-card:hover {
  border-color: var(--border-secondary);
  transform: translateY(-2px);
}

.stat-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.stat-card-icon {
  width: 44px;
  height: 44px;
  background: var(--accent-primary-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  color: var(--accent-primary);
}

.stat-card-trend {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.stat-card-trend.up {
  color: var(--success);
}

.stat-card-trend.down {
  color: var(--error);
}

.stat-card .stat-value {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--space-1);
}

.stat-card .stat-label {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
}

/* Dashboard Cards */
.dash-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
}

.dash-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-primary);
}

.dash-card-header h3 {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
}

.dash-card-body {
  padding: var(--space-6);
}

/* ── Student Dashboard Specific ── */

/* Enrolled Course Cards */
.enrolled-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.enrolled-card {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.enrolled-card:hover {
  border-color: var(--border-secondary);
  transform: translateY(-3px);
}

.enrolled-card-thumb {
  height: 120px;
  overflow: hidden;
  position: relative;
}

.enrolled-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  opacity: 0.4;
}

.enrolled-card-body {
  padding: var(--space-4) var(--space-5);
}

.enrolled-card-body h4 {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.enrolled-progress {
  margin-bottom: var(--space-3);
}

.enrolled-progress-text {
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}

.enrolled-card .btn {
  width: 100%;
  margin-top: var(--space-3);
}

/* ── Instructor Dashboard Specific ── */

/* Table */
.dash-table {
  width: 100%;
  border-collapse: collapse;
}

.dash-table th {
  text-align: left;
  padding: var(--space-4) var(--space-5);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border-primary);
}

.dash-table td {
  padding: var(--space-4) var(--space-5);
  font-size: var(--fs-sm);
  border-bottom: 1px solid var(--border-primary);
  color: var(--text-secondary);
}

.dash-table tr:hover td {
  background: var(--bg-tertiary);
}

.dash-table .course-cell {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.dash-table .course-cell-thumb {
  width: 48px;
  height: 36px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  flex-shrink: 0;
}

.dash-table .course-cell-info h4 {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
}

.dash-table .course-cell-info span {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

.dash-table .status-badge {
  font-size: var(--fs-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-weight: var(--fw-semibold);
}

.dash-table .status-published {
  background: rgba(52, 211, 153, 0.15);
  color: var(--success);
}

.dash-table .status-draft {
  background: rgba(251, 191, 36, 0.15);
  color: var(--warning);
}

.dash-table .status-review {
  background: rgba(96, 165, 250, 0.15);
  color: var(--info);
}

.dash-table .actions-cell {
  display: flex;
  gap: var(--space-2);
}

.dash-table .action-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  transition: all var(--transition-fast);
}

.dash-table .action-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

/* Earnings Card */
.earnings-chart {
  height: 200px;
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  padding-top: var(--space-6);
}

.chart-bar {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.chart-bar-fill {
  width: 100%;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: linear-gradient(180deg, var(--accent-primary), rgba(139, 92, 246, 0.25));
  transition: height var(--transition-slow);
  min-height: 4px;
}

.chart-bar-label {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: var(--space-2);
}

/* ── Mobile Sidebar Toggle ── */
.dash-sidebar-toggle {
  display: none;
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 52px;
  height: 52px;
  background: var(--accent-primary);
  color: var(--text-on-accent);
  border-radius: var(--radius-full);
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-lg);
}

/* ── Responsive ── */
@media (max-width: 1200px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .enrolled-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
  
  .dash-sidebar {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    z-index: var(--z-overlay);
    box-shadow: var(--shadow-xl);
  }
  
  .dash-sidebar.active {
    display: block;
  }
  
  .dash-sidebar-toggle {
    display: flex;
  }
  
  .dash-content {
    padding: var(--space-5);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .enrolled-grid {
    grid-template-columns: 1fr;
  }
  
  .dash-table {
    display: block;
    overflow-x: auto;
  }
}