/* Product analytics admin dashboard */
.product-analytics-page {
  --pa-accent: var(--color-primary);
  --pa-accent-soft: rgba(124, 115, 255, 0.12);
  --pa-accent-glow: rgba(124, 115, 255, 0.28);
  --pa-card-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.06);
  --pa-radius: 14px;
  max-width: 1360px;
  margin: 0 auto;
  padding: 20px 20px 56px;
}

/* Hero header */
.pa-hero {
  background: linear-gradient(135deg, var(--pa-accent-soft) 0%, transparent 55%),
    var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--pa-radius) + 4px);
  padding: 22px 24px;
  margin-bottom: 18px;
  box-shadow: var(--pa-card-shadow);
}

.pa-hero-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.pa-hero-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.pa-hero-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-size: 1.35rem;
  box-shadow: 0 8px 20px var(--pa-accent-glow);
  flex-shrink: 0;
}

.pa-hero h1 {
  font-family: Cinzel, serif;
  margin: 0 0 4px;
  font-size: clamp(1.5rem, 2.5vw, 1.85rem);
  letter-spacing: 0.02em;
}

.product-analytics-subtitle {
  color: var(--color-text-secondary);
  margin: 0;
  font-size: 0.95rem;
}

.pa-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.pa-export-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid rgba(124, 115, 255, 0.35);
  background: var(--pa-accent-soft);
  color: var(--color-primary-text);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.pa-export-btn:hover {
  border-color: var(--color-primary);
  background: rgba(124, 115, 255, 0.18);
}

.pa-signout-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-background);
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.pa-signout-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  background: var(--pa-accent-soft);
}

.pa-back-home-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-background);
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.pa-back-home-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  background: var(--pa-accent-soft);
}

.pa-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.pa-tz-badge,
.pa-range-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.pa-tz-badge {
  background: var(--color-background-alt);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.pa-range-badge {
  background: var(--pa-accent-soft);
  color: var(--color-primary-text);
  border: 1px solid rgba(124, 115, 255, 0.22);
}

/* Toolbar */
.pa-toolbar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 16px 18px;
  margin-bottom: 20px;
  box-shadow: var(--pa-card-shadow);
}

.pa-toolbar-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.pa-date-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.pa-input {
  min-width: 148px;
}

.pa-apply-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--pa-accent-glow);
  transition: transform 0.12s, box-shadow 0.12s;
}

.pa-apply-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--pa-accent-glow);
}

.pa-preset-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 5px;
  background: var(--color-background-alt);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.pa-preset-btn {
  padding: 8px 14px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}

.pa-preset-btn:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.pa-preset-btn.active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.08);
}

/* Loading & errors */
.product-analytics-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 28px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.product-analytics-loading[hidden] {
  display: none !important;
}

.pa-spinner {
  width: 22px;
  height: 22px;
  border: 3px solid var(--pa-accent-soft);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: pa-spin 0.75s linear infinite;
}

@keyframes pa-spin {
  to { transform: rotate(360deg); }
}

.product-analytics-error {
  padding: 14px 16px;
  margin-bottom: 16px;
  border-radius: 10px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: var(--color-danger);
  font-weight: 500;
}

/* Tabs */
.product-analytics-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--color-border);
}

.product-analytics-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  background: transparent;
  border-radius: 10px 10px 0 0;
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.product-analytics-tab:hover {
  color: var(--color-text);
  background: var(--pa-accent-soft);
}

.product-analytics-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  background: var(--pa-accent-soft);
}

.product-analytics-panel {
  display: none;
}

.product-analytics-panel.active {
  display: block;
  animation: pa-fade-in 0.25s ease;
}

.pa-main-tabs {
  gap: 4px;
  margin-bottom: 18px;
}

.pa-main-tabs .product-analytics-tab {
  font-size: 0.84rem;
  padding: 9px 14px;
}

/* Sub-panels within main tabs */
.pa-subpanel,
.pa-raw-panel {
  display: none;
}

.pa-subpanel.active,
.pa-raw-panel.active {
  display: block;
  animation: pa-fade-in 0.2s ease;
}

.product-analytics-subtabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
  padding: 6px;
  background: var(--color-background-alt);
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.product-analytics-subtabs .product-analytics-tab {
  border-radius: 8px;
  border-bottom: none;
  margin-bottom: 0;
  padding: 8px 14px;
  font-size: 0.84rem;
}

.product-analytics-subtabs .product-analytics-tab.active {
  background: var(--color-surface);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

/* Period change badges on cards */
.pa-card-change {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
}

.pa-change--up {
  color: #059669;
  background: rgba(16, 185, 129, 0.12);
}

.pa-change--down {
  color: #dc2626;
  background: rgba(239, 68, 68, 0.1);
}

.pa-change--flat {
  color: var(--color-text-secondary);
  background: var(--color-background-alt);
}

/* Funnel visualization */
.pa-funnel-visual {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 18px 0;
}

.pa-funnel-step {
  width: 100%;
}

.pa-funnel-step-bar {
  display: flex;
  align-items: stretch;
  gap: 12px;
  width: var(--funnel-width, 100%);
  min-width: 140px;
  max-width: 100%;
  transition: width 0.3s ease;
}

.pa-funnel-step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.78rem;
  font-weight: 800;
  background: var(--color-primary);
  color: #fff;
}

.pa-funnel-step-body {
  flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--pa-radius);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  box-shadow: var(--pa-card-shadow);
}

.pa-funnel-step-label {
  font-weight: 600;
  font-size: 0.92rem;
}

.pa-funnel-step-meta {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  font-weight: 600;
  white-space: nowrap;
}

/* DAU / WAU / MAU cards */
.pa-dau-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.pa-dau-role-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 18px 20px;
  box-shadow: var(--pa-card-shadow);
}

.pa-dau-role-card--teacher {
  border-top: 3px solid #38bdf8;
}

.pa-dau-role-card--student {
  border-top: 3px solid #34d399;
}

.pa-dau-role-card h4 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.pa-dau-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.pa-dau-metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pa-dau-metric span {
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.pa-dau-metric strong {
  font-size: 1.35rem;
  font-weight: 800;
}

.pa-dau-metric--highlight strong {
  color: var(--color-primary-text);
}

@keyframes pa-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Sections */
.pa-section {
  margin-bottom: 36px;
}

.pa-section-head {
  margin-bottom: 16px;
}

.pa-section-title {
  font-family: Cinzel, serif;
  font-size: 1.2rem;
  margin: 0 0 4px;
}

.pa-section-desc {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* Summary cards */
.product-analytics-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}

.product-analytics-card {
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 16px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: var(--pa-card-shadow);
  transition: transform 0.15s, box-shadow 0.15s;
}

.product-analytics-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--card-accent, var(--color-primary)), transparent);
}

.product-analytics-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(15, 23, 42, 0.05), 0 12px 28px rgba(15, 23, 42, 0.08);
}

.product-analytics-card--purple { --card-accent: #7C73FF; }
.product-analytics-card--green { --card-accent: #10b981; }
.product-analytics-card--amber { --card-accent: #f59e0b; }
.product-analytics-card--rose { --card-accent: #f43f5e; }
.product-analytics-card--sky { --card-accent: #0ea5e9; }

.product-analytics-card-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  font-size: 0.9rem;
  margin-bottom: 4px;
  background: var(--pa-accent-soft);
  color: var(--card-accent, var(--color-primary));
}

.product-analytics-card-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-secondary);
}

.product-analytics-card-value {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.product-analytics-card-sub {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
  margin-top: 2px;
}

/* Engagement / magic number */
.pa-engagement-section {
  position: relative;
}

.pa-engagement-combined {
  margin-bottom: 18px;
}

.pa-engagement-combined-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 14px 18px;
  box-shadow: var(--pa-card-shadow);
}

.pa-engagement-combined-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
}

.pa-engagement-combined-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.pa-engagement-combined-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 110px;
}

.pa-engagement-combined-stat-label {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
}

.pa-engagement-combined-stat strong {
  font-size: 1.2rem;
  font-weight: 800;
}

.pa-engagement-split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.pa-engagement-role-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--pa-radius) + 2px);
  padding: 16px;
  box-shadow: var(--pa-card-shadow);
}

.pa-engagement-role-panel--teacher {
  border-top: 3px solid #38bdf8;
}

.pa-engagement-role-panel--student {
  border-top: 3px solid #34d399;
}

.pa-engagement-role-panel-head h3 {
  margin: 0 0 14px;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pa-engagement-role-panel-head h3 i {
  color: var(--color-primary-text);
}

.pa-magic-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 16px;
  margin-bottom: 18px;
}

.pa-magic-hero--role {
  margin-bottom: 14px;
}

.pa-magic-card {
  flex: 1 1 280px;
  background: linear-gradient(135deg, rgba(124, 115, 255, 0.14) 0%, rgba(124, 115, 255, 0.04) 100%);
  border: 1px solid rgba(124, 115, 255, 0.28);
  border-radius: calc(var(--pa-radius) + 2px);
  padding: 22px 24px;
  box-shadow: var(--pa-card-shadow);
}

.pa-magic-card--teacher {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.14) 0%, rgba(56, 189, 248, 0.04) 100%);
  border-color: rgba(56, 189, 248, 0.28);
}

.pa-magic-card--student {
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.14) 0%, rgba(52, 211, 153, 0.04) 100%);
  border-color: rgba(52, 211, 153, 0.28);
}

.pa-magic-card-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-text);
  margin-bottom: 8px;
}

.pa-magic-card-value {
  display: block;
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 8px;
}

.pa-magic-card-desc {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.45;
  max-width: 42ch;
}

.pa-magic-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 1 1 220px;
}

.pa-magic-stat {
  flex: 1 1 100px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 14px 16px;
  box-shadow: var(--pa-card-shadow);
}

.pa-magic-stat-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.pa-magic-stat-value {
  font-size: 1.35rem;
  font-weight: 800;
}

.pa-engagement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.pa-engagement-grid--role {
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  margin-bottom: 0;
}

.pa-engagement-tier-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 14px 16px;
  box-shadow: var(--pa-card-shadow);
  border-top: 3px solid var(--tier-color, var(--color-primary));
}

.pa-engagement-tier-card h4 {
  margin: 0 0 6px;
  font-size: 0.92rem;
}

.pa-engagement-tier-count {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.pa-engagement-tier-desc {
  margin: 0;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.pa-engagement-tier-min {
  margin: 8px 0 0;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--color-primary-text);
}

.pa-engagement-role-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.pa-engagement-role-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 16px 18px;
  box-shadow: var(--pa-card-shadow);
}

.pa-engagement-role-card h4 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.pa-engagement-role-sub {
  margin: 0 0 12px;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

.pa-engagement-role-rows {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pa-engagement-role-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.86rem;
  padding: 5px 0;
  border-bottom: 1px solid var(--color-border);
}

.pa-engagement-role-row:last-child {
  border-bottom: none;
  font-weight: 700;
  padding-top: 8px;
}

.pa-engagement-role-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

/* Projections */
.pa-projection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
}

.pa-projection-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 16px 18px;
  box-shadow: var(--pa-card-shadow);
}

.pa-projection-card h4 {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--color-primary-text);
}

.pa-projection-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--color-border);
}

.pa-projection-row:last-of-type {
  border-bottom: none;
}

.pa-projection-row--highlight {
  background: var(--pa-accent-soft);
  margin: 0 -10px;
  padding-left: 10px;
  padding-right: 10px;
  border-radius: 8px;
  border-bottom: none;
}

.pa-projection-row--highlight strong {
  color: var(--color-primary);
}

.pa-projection-foot {
  margin: 12px 0 0;
  font-size: 0.76rem;
  color: var(--color-text-secondary);
  line-height: 1.45;
}

/* Charts */
.pa-chart-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.pa-chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 18px;
  box-shadow: var(--pa-card-shadow);
}

.pa-chart-card h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
}

.pa-chart-note {
  margin: 0 0 14px;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

.pa-chart-wrap {
  position: relative;
  height: 260px;
}

.pa-chart-wrap--tall {
  height: 320px;
}

/* Tables */
.product-analytics-subtabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.pa-raw-panel {
  display: none;
}

.pa-raw-panel.active {
  display: block;
}

.product-analytics-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  background: var(--color-surface);
  box-shadow: var(--pa-card-shadow);
}

.product-analytics-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.product-analytics-table th,
.product-analytics-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.product-analytics-table tbody tr:hover {
  background: var(--pa-accent-soft);
}

.product-analytics-table th {
  background: var(--color-background-alt);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-secondary);
}

.product-analytics-empty {
  padding: 24px;
  text-align: center;
  color: var(--color-text-secondary);
}

.pa-classrooms-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  margin-bottom: 14px;
}

.pa-classrooms-search {
  flex: 1 1 240px;
}

.pa-classrooms-search input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 14px;
}

.pa-classrooms-filter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
  cursor: pointer;
  user-select: none;
}

.pa-classrooms-table-wrap {
  overflow: visible;
}

.pa-classrooms-table .pa-classroom-name {
  font-weight: 700;
  color: var(--color-text);
}

.pa-classroom-meta {
  margin-top: 3px;
  font-size: 12px;
  color: var(--color-text-secondary);
}

.pa-score {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 72px;
}

.pa-score-value {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1;
}

.pa-score--high .pa-score-value { color: #059669; }
.pa-score--mid .pa-score-value { color: #d97706; }
.pa-score--low .pa-score-value { color: #64748b; }

.pa-score-bar {
  display: block;
  height: 6px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.25);
  overflow: hidden;
}

.pa-score-bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: currentColor;
}

.pa-score--high .pa-score-bar > span { background: #10b981; }
.pa-score--mid .pa-score-bar > span { background: #f59e0b; }
.pa-score--low .pa-score-bar > span { background: #94a3b8; }

.pa-owner-cell {
  position: relative;
}

.pa-owner-trigger {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  margin: 0;
  font: inherit;
  font-weight: 700;
  color: var(--pa-accent, #5b54d6);
  cursor: help;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 3px;
}

.pa-owner-tooltip {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 40;
  width: min(340px, 70vw);
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.18);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
}

.pa-owner-cell:hover .pa-owner-tooltip,
.pa-owner-cell:focus-within .pa-owner-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.pa-owner-tooltip-head {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.pa-owner-tooltip-head strong {
  font-size: 15px;
}

.pa-owner-tooltip-head span {
  font-size: 12px;
  color: var(--color-text-secondary);
  word-break: break-all;
}

.pa-owner-tooltip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  margin: 0;
}

.pa-owner-tooltip-grid dt {
  margin: 0;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
}

.pa-owner-tooltip-grid dd {
  margin: 2px 0 0;
  font-size: 12px;
  font-weight: 600;
  word-break: break-word;
}

.pa-status-pill {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--color-background-alt);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.pa-classroom-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  white-space: nowrap;
}

.pa-action-btn {
  appearance: none;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.pa-action-btn:hover:not(:disabled) {
  border-color: var(--pa-accent, #5b54d6);
  color: var(--pa-accent, #5b54d6);
}

.pa-action-btn--primary {
  background: var(--pa-accent, #5b54d6);
  border-color: var(--pa-accent, #5b54d6);
  color: #fff;
}

.pa-action-btn--primary:hover:not(:disabled) {
  filter: brightness(1.05);
  color: #fff;
}

.pa-action-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.product-analytics-storage {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--pa-radius);
  padding: 18px 20px;
  box-shadow: var(--pa-card-shadow);
}

.product-analytics-storage-list {
  margin: 12px 0 0;
  padding-left: 20px;
  line-height: 1.8;
}

/* Login */
.product-analytics-login-page {
  min-height: calc(100vh - 40px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(ellipse at top, var(--pa-accent-soft, rgba(124, 115, 255, 0.12)), transparent 60%);
}

.product-analytics-login-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--pa-radius) + 2px);
  padding: 32px 28px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.1);
  text-align: center;
}

.pa-login-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-size: 1.4rem;
  box-shadow: 0 8px 24px var(--pa-accent-glow, rgba(124, 115, 255, 0.28));
}

.product-analytics-login-card h1 {
  font-family: Cinzel, serif;
  margin: 0 0 6px;
  font-size: 26px;
}

.product-analytics-login-subtitle {
  color: var(--color-text-secondary);
  margin: 0 0 24px;
  font-size: 0.92rem;
}

.product-analytics-login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  text-align: left;
}

.product-analytics-login-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.pa-login-submit {
  width: 100%;
  margin-top: 4px;
}

.pa-back-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.pa-back-home:hover {
  color: var(--color-primary);
}

.product-analytics-login-error {
  color: var(--color-danger);
  margin: 0;
  font-size: 13px;
}

@media (min-width: 900px) {
  .pa-toolbar {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .pa-chart-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pa-chart-card--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1100px) {
  .product-analytics-cards {
    grid-template-columns: repeat(4, 1fr);
  }
}