/* ============================================================
   DASHBOARD — Sidebar + layout
   ============================================================ */

.dashboard-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
  background: var(--bg-primary);
}

/* Sidebar */
.sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: var(--sp-6) var(--sp-4);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.sidebar-logo {
  padding: var(--sp-3) var(--sp-3) var(--sp-6);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--sp-4);
}

.sidebar-logo img { height: 40px; }

.sidebar-section { margin-bottom: var(--sp-6); }

.sidebar-section-title {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: var(--fw-semibold);
  padding: 0 var(--sp-3);
  margin-bottom: var(--sp-2);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transition: all var(--t-fast);
  margin-bottom: 2px;
}

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

.sidebar-link.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: calc(var(--sp-3) - 2px);
}

.sidebar-link-icon {
  width: 20px;
  text-align: center;
  font-size: 16px;
  flex-shrink: 0;
}

.sidebar-link-badge {
  margin-left: auto;
  background: var(--accent);
  color: white;
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  padding: 2px 6px;
  border-radius: var(--radius-full);
  min-width: 20px;
  text-align: center;
}

.sidebar-link.live::after {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--danger);
  border-radius: 50%;
  margin-left: auto;
  box-shadow: 0 0 8px var(--danger);
  animation: pulse 2s ease-in-out infinite;
}

.sidebar-user {
  margin-top: auto;
  padding: var(--sp-3);
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.sidebar-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--success));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  flex-shrink: 0;
}

.sidebar-user-info { flex: 1; min-width: 0; }
.sidebar-user-name { font-size: var(--fs-sm); font-weight: var(--fw-semibold); color: var(--text-primary); }
.sidebar-user-plan { font-size: var(--fs-xs); color: var(--accent); }

/* Main content */
.dashboard-main {
  padding: var(--sp-8) var(--sp-8);
  overflow-x: hidden;
}

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

.dashboard-greeting h1 {
  font-size: var(--fs-3xl);
  margin-bottom: var(--sp-1);
}

.dashboard-greeting p {
  font-size: var(--fs-base);
  color: var(--text-secondary);
}

.dashboard-header-actions {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
}

.dashboard-search {
  position: relative;
  width: 300px;
  max-width: 100%;
}

.dashboard-search input {
  padding-left: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}

.dashboard-search::before {
  content: '🔍';
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  opacity: 0.5;
  pointer-events: none;
}

/* Widgets */
.widget {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  backdrop-filter: blur(20px);
  transition: all var(--t-base);
}

.widget:hover { border-color: var(--accent); }

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

.widget-title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
}

.widget-link {
  font-size: var(--fs-sm);
  color: var(--accent);
  font-weight: var(--fw-medium);
}

/* Dashboard grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}

.dashboard-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}

/* Stat card */
.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
}

.stat-card.blue::before { background: var(--accent); }
.stat-card.green::before { background: var(--success); }
.stat-card.amber::before { background: var(--warning); }
.stat-card.red::before { background: var(--danger); }

.stat-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: var(--sp-3);
}

.stat-card.blue .stat-card-icon { background: var(--accent-soft); color: var(--accent); }
.stat-card.green .stat-card-icon { background: var(--success-soft); color: var(--success); }
.stat-card.amber .stat-card-icon { background: var(--warning-soft); color: var(--warning); }
.stat-card.red .stat-card-icon { background: var(--danger-soft); color: var(--danger); }

.stat-card-value {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-black);
  line-height: 1;
  margin-bottom: var(--sp-1);
  font-family: var(--font-mono);
}

.stat-card-label {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: var(--sp-3);
}

.stat-card-trend {
  font-size: var(--fs-xs);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: var(--fw-semibold);
}

.stat-card-trend.up { background: var(--success-soft); color: var(--success); }
.stat-card-trend.down { background: var(--danger-soft); color: var(--danger); }

/* Upcoming live sessions list */
.live-list { display: flex; flex-direction: column; gap: var(--sp-3); }

.live-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: all var(--t-fast);
}

.live-item:hover { border-color: var(--accent); transform: translateX(2px); }

.live-item-thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--success));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  position: relative;
}

.live-item-thumb::after {
  content: '●';
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--danger);
  color: white;
  font-size: 10px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 8px var(--danger);
}

.live-item-info { flex: 1; min-width: 0; }
.live-item-title { font-size: var(--fs-sm); font-weight: var(--fw-semibold); margin-bottom: 2px; }
.live-item-meta { font-size: var(--fs-xs); color: var(--text-secondary); display: flex; gap: var(--sp-2); }

/* Activity feed */
.activity-list { display: flex; flex-direction: column; gap: var(--sp-3); }

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--border);
}

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

.activity-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--success));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  flex-shrink: 0;
}

.activity-text { font-size: var(--fs-sm); line-height: 1.5; }
.activity-text strong { color: var(--text-primary); }
.activity-time { font-size: var(--fs-xs); color: var(--text-muted); margin-top: 2px; }

/* Course progress list */
.progress-list { display: flex; flex-direction: column; gap: var(--sp-4); }

.progress-item {
  display: flex;
  gap: var(--sp-3);
  padding: var(--sp-3);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  align-items: center;
  transition: all var(--t-fast);
}

.progress-item:hover { border-color: var(--accent); }

.progress-thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.progress-info { flex: 1; min-width: 0; }
.progress-title { font-size: var(--fs-sm); font-weight: var(--fw-semibold); margin-bottom: 4px; }
.progress-bar-mini {
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--success));
}
.progress-pct { font-size: var(--fs-xs); color: var(--text-secondary); margin-top: 4px; font-family: var(--font-mono); }

/* Calendar mini widget */
.calendar-mini {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: var(--sp-3);
}

.calendar-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  text-align: center;
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xs);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  position: relative;
}

.calendar-day.has-event { background: var(--accent-soft); color: var(--accent); font-weight: var(--fw-bold); }
.calendar-day.today { background: var(--accent); color: white; }
.calendar-day.live::after {
  content: '';
  position: absolute;
  bottom: 4px;
  width: 4px;
  height: 4px;
  background: var(--danger);
  border-radius: 50%;
}

/* Mobile sidebar */
.menu-toggle {
  display: none;
  position: fixed;
  bottom: var(--sp-4);
  right: var(--sp-4);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 24px;
  z-index: 99;
  box-shadow: var(--shadow-lg);
  align-items: center;
  justify-content: center;
}

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

@media (max-width: 768px) {
  .dashboard-layout { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    top: 0; left: -100%;
    width: 280px;
    z-index: 200;
    transition: left var(--t-base);
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { left: 0; }
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-base);
  }
  .sidebar-overlay.open { opacity: 1; pointer-events: auto; }
  .menu-toggle { display: flex; }
  .dashboard-main { padding: var(--sp-4); }
  .dashboard-header { flex-direction: column; align-items: flex-start; }
  .dashboard-search { width: 100%; }
}