:root {
  --up-primary: #4f46e5;
  --up-primary-dark: #4338ca;
  --up-accent: #06b6d4;
  --up-success: #059669;
  --up-warning: #d97706;
  --up-bg: #f1f5f9;
  --up-card: #ffffff;
  --up-text: #0f172a;
  --up-muted: #64748b;
  --up-border: #e2e8f0;
  --up-sidebar: #0f172a;
  --up-shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
}

body.user-portal {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--up-bg);
  color: var(--up-text);
}

/* Auth pages */
.auth-page {
  min-height: 100vh;
  display: flex;
  background: linear-gradient(135deg, #312e81 0%, #4f46e5 45%, #0891b2 100%);
}

.auth-brand {
  flex: 1;
  display: none;
  flex-direction: column;
  justify-content: center;
  padding: 48px;
  color: #fff;
}

@media (min-width: 992px) {
  .auth-brand { display: flex; }
}

.auth-brand h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.auth-brand p {
  font-size: 1.05rem;
  opacity: 0.92;
  max-width: 420px;
  line-height: 1.6;
}

.auth-brand ul {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
}

.auth-brand li {
  padding: 10px 0;
  padding-left: 28px;
  position: relative;
  opacity: 0.95;
}

.auth-brand li::before {
  content: '✓';
  position: absolute;
  left: 0;
  font-weight: 700;
}

.auth-panel {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--up-bg);
}

@media (min-width: 992px) {
  .auth-panel {
    flex: 0 0 480px;
    max-width: 480px;
    border-radius: 24px 0 0 24px;
    margin: 24px 24px 24px 0;
    box-shadow: var(--up-shadow);
  }
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--up-card);
  border-radius: 16px;
  padding: 36px 32px;
  box-shadow: var(--up-shadow);
  border: 1px solid var(--up-border);
}

.auth-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 6px;
}

.auth-card .subtitle {
  color: var(--up-muted);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.auth-card .form-control {
  border-radius: 10px;
  padding: 11px 14px;
  border-color: var(--up-border);
}

.auth-card .form-control:focus {
  border-color: var(--up-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.auth-card .btn-primary {
  background: var(--up-primary);
  border-color: var(--up-primary);
  border-radius: 10px;
  padding: 11px;
  font-weight: 600;
}

.auth-card .btn-primary:hover {
  background: var(--up-primary-dark);
  border-color: var(--up-primary-dark);
}

.auth-links {
  text-align: center;
  margin-top: 20px;
  font-size: 0.9rem;
}

.auth-links a {
  color: var(--up-primary);
  font-weight: 600;
}

/* Dashboard layout */
.dash-layout {
  display: flex;
  min-height: 100vh;
}

.dash-sidebar {
  width: 260px;
  background: var(--up-sidebar);
  color: #e2e8f0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.dash-sidebar-brand {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dash-sidebar-brand img {
  height: 60px;
  width: auto;
  object-fit: contain;
}

.dash-nav {
  flex: 1;
  padding: 16px 12px;
}

.dash-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  color: #94a3b8;
  text-decoration: none;
  margin-bottom: 4px;
  font-size: 0.95rem;
  transition: background 0.15s, color 0.15s;
}

.dash-nav a:hover,
.dash-nav a.active {
  background: rgba(79, 70, 229, 0.25);
  color: #fff;
}

.dash-nav a.disabled {
  opacity: 0.45;
  pointer-events: none;
}

.dash-sidebar-user {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 12px;
}

.dash-avatar {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--up-primary), var(--up-accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.dash-sidebar-user .name {
  font-weight: 600;
  color: #fff;
  font-size: 0.9rem;
}

.dash-sidebar-user .email {
  font-size: 0.75rem;
  color: #94a3b8;
}

.dash-main {
  flex: 1;
  margin-left: 260px;
  padding: 28px 32px 48px;
}

.dash-topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.dash-topbar h1 {
  font-size: 1.65rem;
  font-weight: 700;
  margin: 0 0 4px;
}

.dash-topbar .greet-sub {
  color: var(--up-muted);
  margin: 0;
}

.dash-topbar-actions .btn {
  border-radius: 10px;
  font-weight: 600;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--up-card);
  border-radius: 14px;
  padding: 22px;
  border: 1px solid var(--up-border);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.stat-card .label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--up-muted);
  margin-bottom: 8px;
}

.stat-card .value {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.1;
}

.stat-card .hint {
  font-size: 0.85rem;
  color: var(--up-muted);
  margin-top: 6px;
}

.stat-card.accent-balance .value { color: var(--up-success); }
.stat-card.accent-pack .value { color: var(--up-primary); }

.dash-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 1100px) {
  .dash-row { grid-template-columns: 1fr; }
}

.dash-panel {
  background: var(--up-card);
  border-radius: 14px;
  border: 1px solid var(--up-border);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  overflow: hidden;
}

.dash-panel-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--up-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dash-panel-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.dash-panel-header-split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.paper-list-table .paper-list-date {
  white-space: nowrap;
}

.paper-list-time {
  display: block;
  font-size: 0.75rem;
  color: var(--up-muted);
  font-weight: 400;
}

.paper-list-title strong {
  display: block;
  font-weight: 600;
}

.paper-list-breakdown {
  display: block;
  font-size: 0.78rem;
  color: var(--up-muted);
  margin-top: 2px;
}

.paper-list-meta {
  display: block;
  font-size: 0.85rem;
  line-height: 1.35;
}

.paper-list-meta + .paper-list-meta {
  color: var(--up-muted);
  font-size: 0.8rem;
}

.dash-panel-body {
  padding: 20px 22px;
}

.pack-hero {
  background: linear-gradient(135deg, #eef2ff, #ecfeff);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 0;
}

.pack-hero .pack-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--up-primary-dark);
}

.pack-hero .pack-meta {
  color: var(--up-muted);
  font-size: 0.9rem;
  margin-top: 6px;
}

.progress-wrap {
  margin-top: 16px;
}

.progress-wrap .bar-bg {
  height: 10px;
  background: #e2e8f0;
  border-radius: 99px;
  overflow: hidden;
}

.progress-wrap .bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--up-primary), var(--up-accent));
  border-radius: 99px;
}

.progress-wrap .bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--up-muted);
  margin-top: 8px;
}

.empty-state {
  text-align: center;
  padding: 32px 16px;
  color: var(--up-muted);
}

.empty-state .icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.tx-table {
  width: 100%;
  font-size: 0.88rem;
}

.tx-table th {
  font-weight: 600;
  color: var(--up-muted);
  border-top: none;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tx-table td {
  vertical-align: middle;
}

.tx-amount.pos { color: var(--up-success); font-weight: 600; }
.tx-amount.neg { color: #dc2626; font-weight: 600; }

.badge-pack {
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 6px;
  margin-left: 8px;
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.quick-actions .btn {
  border-radius: 10px;
  font-weight: 600;
}

/* Create paper — board / class picker */
.paper-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  font-size: 0.9rem;
  color: var(--up-muted);
}

.paper-steps li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.paper-steps li span {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  background: var(--up-border);
  color: var(--up-muted);
}

.paper-steps li.active {
  color: var(--up-text);
  font-weight: 600;
}

.paper-steps li.active span {
  background: var(--up-primary);
  color: #fff;
}

.paper-steps li.done span {
  background: var(--up-success);
  color: #fff;
}

.paper-steps-pills {
  background: var(--up-card);
  border: 1px solid var(--up-border);
  border-radius: 12px;
  padding: 14px 18px;
  gap: 12px 28px;
}

.paper-picker-section {
  margin-top: 4px;
}

.paper-picker-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.paper-picker-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 4px;
}

.paper-picker-hint {
  margin: 0;
  font-size: 0.9rem;
  color: var(--up-muted);
}

.paper-picker-count {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--up-primary);
  background: #eef2ff;
  padding: 6px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.paper-picker-search {
  position: relative;
  margin-bottom: 20px;
  max-width: 420px;
}

.paper-picker-search .fa-search {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--up-muted);
  pointer-events: none;
}

.paper-picker-search .form-control {
  padding-left: 40px;
  border-radius: 12px;
  border-color: var(--up-border);
  height: 44px;
}

.paper-picker-search .form-control:focus {
  border-color: var(--up-primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.paper-picker-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.paper-picker-toolbar .paper-picker-search {
  flex: 1;
  min-width: 200px;
  max-width: 360px;
  margin-bottom: 0;
}

.paper-picker-results {
  font-size: 0.85rem;
  color: var(--up-muted);
  font-weight: 500;
}

/* E-commerce style product grid (boards catalog) */
.ecom-catalog {
  background: var(--up-card);
  border: 1px solid var(--up-border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}

.ecom-product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

@media (max-width: 1199px) {
  .ecom-product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

@media (max-width: 767px) {
  .ecom-product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .ecom-catalog {
    padding: 16px;
  }
}

@media (max-width: 400px) {
  .ecom-product-grid {
    grid-template-columns: 1fr;
  }
}

/* Classes: 6 per row (desktop) */
.ecom-product-grid.ecom-grid-6 {
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

@media (max-width: 1399px) {
  .ecom-product-grid.ecom-grid-6 {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 991px) {
  .ecom-product-grid.ecom-grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {
  .ecom-product-grid.ecom-grid-6 {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

.ecom-product-image--class {
  background: linear-gradient(160deg, #eef2ff 0%, #f0f9ff 100%);
}

.ecom-class-label {
  width: 56px;
  height: 56px;
  font-size: 1.35rem;
}

.ecom-product-link.is-selected {
  border-color: var(--up-primary);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.25);
}

.ecom-product-link.is-selected .ecom-product-btn {
  background: var(--up-success);
}

.ecom-selected-banner {
  border-radius: 12px;
  margin-bottom: 20px;
}

.dash-topbar-with-logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.dash-board-logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--up-border);
  padding: 4px;
  flex-shrink: 0;
}

.ecom-product-image--class img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  box-sizing: border-box;
  background: #fff;
}

/* Class picker page — user-friendly grid */
.paper-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  margin-bottom: 16px;
  color: var(--up-muted);
}

.paper-breadcrumb a {
  color: var(--up-primary);
  text-decoration: none;
  font-weight: 500;
}

.paper-breadcrumb a:hover {
  text-decoration: underline;
}

.paper-breadcrumb .sep {
  opacity: 0.5;
}

.paper-breadcrumb .current {
  color: var(--up-text);
  font-weight: 600;
}

.class-board-hero {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  background: linear-gradient(135deg, #312e81 0%, #4f46e5 50%, #0891b2 100%);
  color: #fff;
  border-radius: 16px;
  padding: 22px 24px;
  margin-bottom: 24px;
  box-shadow: 0 8px 28px rgba(79, 70, 229, 0.25);
}

.class-board-hero-media {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 8px;
}

.class-board-hero-media img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.class-board-hero-icon {
  font-size: 2rem;
  color: var(--up-primary);
}

.class-board-hero-body {
  flex: 1;
  min-width: 200px;
}

.class-board-hero-label {
  margin: 0 0 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.class-board-hero-body h1 {
  margin: 0 0 6px;
  font-size: 1.5rem;
  font-weight: 700;
}

.class-board-hero-desc {
  margin: 0;
  font-size: 0.9rem;
  opacity: 0.92;
  line-height: 1.5;
  max-width: 520px;
}

.class-board-hero-back {
  background: rgba(255, 255, 255, 0.95) !important;
  border-color: transparent !important;
  font-weight: 600;
  white-space: nowrap;
}

.class-selected-toast {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 16px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
  border-radius: 12px;
  padding: 12px 18px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.class-selected-toast .fa-check-circle {
  font-size: 1.25rem;
  color: var(--up-success);
}

.class-selected-toast-hint {
  color: #047857;
  font-size: 0.8rem;
  opacity: 0.9;
}

.class-picker-catalog {
  background: var(--up-card);
  border: 1px solid var(--up-border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}

.class-picker-head h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 4px;
}

.class-picker-head p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--up-muted);
}

.class-picker-head {
  margin-bottom: 20px;
}

.class-picker-toolbar {
  margin-bottom: 22px;
}

.class-picker-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

/* Boards page: 4 per row (fewer, wider cards) */
.board-picker-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

@media (max-width: 1199px) {
  .board-picker-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1399px) {
  .class-picker-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 991px) {
  .class-picker-grid,
  .board-picker-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
}

@media (max-width: 767px) {
  .class-picker-grid,
  .board-picker-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .class-picker-catalog {
    padding: 16px;
  }
  .class-board-hero {
    padding: 18px;
  }
  .class-board-hero-body h1 {
    font-size: 1.25rem;
  }
}

.class-picker-card {
  margin: 0;
  min-width: 0;
}

.class-picker-card.is-hidden {
  display: none;
}

.class-picker-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #fff;
  border: 2px solid #e5e7eb;
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.class-picker-link:hover,
.class-picker-link:focus {
  border-color: #a5b4fc;
  box-shadow: 0 10px 28px rgba(79, 70, 229, 0.12);
  transform: translateY(-3px);
  text-decoration: none;
  color: inherit;
  outline: none;
}

.class-picker-link.is-selected {
  border-color: var(--up-success);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.2);
}

.class-picker-selected-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 3;
  font-size: 0.65rem;
  font-weight: 700;
  background: var(--up-success);
  color: #fff;
  padding: 4px 8px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.class-picker-media {
  aspect-ratio: 1 / 1;
  background: linear-gradient(160deg, #f8fafc 0%, #eef2ff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.class-picker-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.class-picker-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--up-primary), var(--up-accent));
  color: #fff;
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.class-picker-info {
  padding: 12px 12px 8px;
  text-align: center;
  flex: 1;
}

.class-picker-info h3 {
  margin: 0 0 4px;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--up-text);
}

.class-picker-info p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--up-muted);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.class-picker-info p.muted {
  font-style: italic;
}

.class-picker-btn {
  display: block;
  margin: 0 10px 10px;
  padding: 9px 10px;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  background: var(--up-primary);
  border-radius: 8px;
  transition: background 0.15s;
}

.class-picker-link:hover .class-picker-btn {
  background: var(--up-primary-dark);
}

.class-picker-link.is-selected .class-picker-btn {
  background: var(--up-success);
}

.class-picker-empty {
  text-align: center;
  color: var(--up-muted);
  padding: 28px 16px;
  margin-top: 12px;
  background: #f9fafb;
  border-radius: 12px;
  border: 1px dashed var(--up-border);
  font-size: 0.9rem;
}

.class-picker-empty .fa {
  display: block;
  font-size: 1.4rem;
  margin-bottom: 8px;
  opacity: 0.45;
}

.board-picker-code-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 3;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: #fff;
  color: var(--up-text);
  padding: 4px 8px;
  border-radius: 6px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.paper-create-hero .class-board-hero-media {
  background: rgba(255, 255, 255, 0.2);
}

.paper-create-hero .class-board-hero-icon {
  color: #fff;
  font-size: 2.25rem;
}

/* Chapters & topics selection */
.subject-code-line {
  margin: 0 0 4px;
}

.subject-code-line span {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--up-primary);
  background: #eef2ff;
  padding: 2px 8px;
  border-radius: 6px;
}

.subject-picker-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.subject-picker-pill {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px 20px;
  background: #fff;
  border: 2px solid var(--up-border);
  border-radius: 12px;
  color: var(--up-text);
  text-decoration: none;
  font-weight: 600;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.subject-picker-pill small {
  font-weight: 500;
  color: var(--up-muted);
  margin-top: 2px;
}

.subject-picker-pill:hover {
  border-color: var(--up-primary);
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.12);
  text-decoration: none;
  color: var(--up-text);
}

.subject-active-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  border-radius: 12px;
  padding: 12px 18px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.topic-select-catalog {
  background: var(--up-card);
  border: 1px solid var(--up-border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}

.topic-select-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.topic-select-toolbar h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 4px;
}

.topic-select-actions-top {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.topic-search-wrap {
  position: relative;
  margin-bottom: 20px;
  max-width: 400px;
}

.topic-search-wrap .fa-search {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--up-muted);
  pointer-events: none;
}

.topic-search-wrap .form-control {
  padding-left: 40px;
  border-radius: 10px;
  height: 42px;
}

.chapter-topic-tree {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  align-items: start;
}

@media (max-width: 767px) {
  .chapter-topic-tree {
    grid-template-columns: 1fr;
  }
}

.chapter-topic-group {
  border: 1px solid var(--up-border);
  border-radius: 12px;
  margin-bottom: 0;
  overflow: hidden;
  background: #fff;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.chapter-topic-group.is-hidden {
  display: none;
}

.chapter-topic-head {
  background: #f8fafc;
  border-bottom: 1px solid var(--up-border);
  padding: 12px 16px;
}

.chapter-check-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--up-text);
}

.chapter-check-label input {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--up-primary);
}

.chapter-num {
  color: var(--up-primary);
  min-width: 1.5em;
}

.topic-list {
  list-style: none;
  padding: 8px 0 8px 0;
  margin: 0;
}

.topic-item {
  border-top: 1px solid #f1f5f9;
}

.topic-item:first-child {
  border-top: none;
}

.topic-check-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  padding: 10px 16px 10px 44px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--up-text);
  transition: background 0.15s;
}

.topic-check-label:hover {
  background: #f8fafc;
}

.topic-check-label input {
  width: 17px;
  height: 17px;
  margin-top: 2px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--up-primary);
}

.topic-list-empty {
  padding: 12px 16px 12px 44px;
  margin: 0;
}

.topic-tree-empty {
  text-align: center;
  color: var(--up-muted);
  padding: 24px;
  margin-top: 12px;
  background: #f9fafb;
  border-radius: 12px;
  border: 1px dashed var(--up-border);
}

.topic-select-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--up-card);
  border: 1px solid var(--up-border);
  border-radius: 12px;
  position: sticky;
  bottom: 16px;
  box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.06);
}

.topic-select-count {
  font-weight: 600;
  color: var(--up-muted);
}

.topic-select-form .btn-primary {
  min-width: 140px;
  font-weight: 600;
  border-radius: 10px;
}

.ecom-product-card {
  margin: 0;
  min-width: 0;
}

.ecom-product-card.is-hidden {
  display: none;
}

.ecom-product-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.ecom-product-link:hover,
.ecom-product-link:focus {
  text-decoration: none;
  color: inherit;
  border-color: #c7d2fe;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
  transform: translateY(-2px);
  outline: none;
}

.ecom-product-image {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #f9fafb;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ecom-product-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  box-sizing: border-box;
  background: #fff;
  transition: transform 0.4s ease;
}

.ecom-product-link:hover .ecom-product-image img {
  transform: scale(1.06);
}

.ecom-product-placeholder {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--up-primary), var(--up-accent));
  color: #fff;
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ecom-product-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  background: #fff;
  color: var(--up-text);
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.ecom-product-hover {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.45);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.ecom-product-link:hover .ecom-product-hover {
  opacity: 1;
}

.ecom-product-details {
  padding: 14px 14px 8px;
  flex: 1;
  text-align: left;
}

.ecom-product-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 6px;
  line-height: 1.35;
  color: var(--up-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ecom-product-text {
  margin: 0;
  font-size: 0.8rem;
  color: var(--up-muted);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ecom-product-text-muted {
  font-style: italic;
}

.ecom-product-footer {
  padding: 0 14px 14px;
  margin-top: auto;
}

.ecom-product-btn {
  display: block;
  width: 100%;
  text-align: center;
  padding: 11px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  background: var(--up-primary);
  border-radius: 8px;
  border: none;
  transition: background 0.2s ease;
}

.ecom-product-link:hover .ecom-product-btn {
  background: var(--up-primary-dark);
}

.ecom-grid-empty {
  text-align: center;
  color: var(--up-muted);
  font-size: 0.95rem;
  margin: 24px 0 8px;
  padding: 32px;
  background: #f9fafb;
  border-radius: 12px;
  border: 1px dashed var(--up-border);
}

.ecom-grid-empty .fa {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 8px;
  opacity: 0.5;
}

.pick-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.pick-grid-classes {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.pick-card {
  display: flex;
  flex-direction: column;
  background: var(--up-card);
  border: 1px solid var(--up-border);
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  position: relative;
  min-height: 100%;
}

a.pick-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--up-shadow);
  border-color: rgba(79, 70, 229, 0.35);
  text-decoration: none;
  color: inherit;
}

.pick-card-class {
  cursor: default;
  opacity: 0.92;
}

.pick-card-visual {
  height: 120px;
  background: linear-gradient(135deg, #eef2ff 0%, #e0f2fe 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.pick-card-visual-sm {
  height: 88px;
}

.pick-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pick-card-icon {
  font-size: 2.5rem;
  color: var(--up-primary);
  opacity: 0.85;
}

.pick-card-body {
  padding: 18px 18px 14px;
  flex: 1;
}

.pick-card-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 6px;
  line-height: 1.3;
}

.pick-card-meta {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--up-primary);
  background: #eef2ff;
  padding: 3px 8px;
  border-radius: 6px;
}

.pick-card-body p {
  margin: 10px 0 0;
  font-size: 0.85rem;
  color: var(--up-muted);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pick-card-arrow {
  position: absolute;
  right: 14px;
  bottom: 14px;
  color: var(--up-primary);
  font-size: 0.9rem;
}

/* Paper setup (step 5) */
.paper-config-catalog {
  margin-top: 8px;
}

.paper-config-summary {
  background: var(--up-card);
  border: 1px solid var(--up-border);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 20px;
}

.paper-config-summary h2 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 12px;
}

.paper-config-topics {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.88rem;
  color: var(--up-muted);
  max-height: 140px;
  overflow-y: auto;
}

.paper-config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.paper-config-card {
  background: var(--up-card);
  border: 1px solid var(--up-border);
  border-radius: 12px;
  padding: 16px 18px;
}

.paper-config-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 14px;
}

.paper-config-card h3 .fa {
  margin-right: 8px;
  color: var(--up-primary);
}

.paper-config-subtotal {
  margin: 8px 0 0;
  font-size: 0.85rem;
  color: var(--up-muted);
}

.paper-config-totals {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  padding: 18px 20px;
  background: #f8fafc;
  border: 1px solid var(--up-border);
  border-radius: 12px;
  margin-bottom: 20px;
}

.paper-config-totals strong {
  display: block;
  font-size: 1.35rem;
  color: var(--up-text);
}

.paper-config-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
  align-items: center;
}

/* Generated exam paper view */
.paper-view-wrap {
  background: #fff;
  border: 1px solid var(--up-border);
  border-radius: 12px;
  padding: 28px 32px;
  margin-top: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.paper-view-wrap .exam-paper {
  max-width: 800px;
  margin: 0 auto;
  font-family: Georgia, "Times New Roman", serif;
  color: #111;
}

.exam-paper-head {
  text-align: center;
  border-bottom: 2px solid #222;
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.exam-paper-head h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 8px;
}

.exam-meta {
  font-size: 0.9rem;
  margin: 4px 0;
  color: #444;
}

.exam-section-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 28px 0 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid #ccc;
}

.exam-question {
  margin-bottom: 22px;
  page-break-inside: avoid;
}

.exam-q-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
}

.exam-q-num {
  font-weight: 700;
}

.exam-q-marks {
  font-size: 0.85rem;
  color: #555;
  white-space: nowrap;
}

.exam-q-text {
  margin-left: 0;
  line-height: 1.5;
}

.exam-mcq-options {
  margin: 10px 0 0 1.5rem;
  padding: 0;
}

.exam-mcq-options li {
  margin-bottom: 6px;
}

.exam-answer-space {
  min-height: 72px;
  border-bottom: 1px dotted #999;
  margin-top: 12px;
}

@media print {
  .dash-sidebar,
  .paper-breadcrumb,
  .dash-topbar,
  .dash-topbar-actions {
    display: none !important;
  }
  .dash-main {
    margin: 0 !important;
    padding: 0 !important;
  }
  .paper-view-wrap {
    border: none;
    box-shadow: none;
    padding: 0;
  }
}

@media (max-width: 768px) {
  .dash-sidebar {
    width: 100%;
    position: relative;
    height: auto;
  }
  .dash-main {
    margin-left: 0;
    padding: 20px 16px;
  }
  .dash-layout { flex-direction: column; }
}