/* Mock test series cards (layout inspired by test-series portals; Researchium content only) */

#mock-test-series {
  scroll-margin-top: 5.5rem;
}

.mock-series-wrap {
  max-width: 1100px;
  margin: 0 auto 2.5rem;
}

.mock-series-head {
  margin-bottom: 1.25rem;
}

.mock-series-head h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ac-text);
  margin-bottom: 0.35rem;
}

.mock-series-head p {
  color: var(--ac-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.mock-year-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.mock-year-tab {
  padding: 0.45rem 1rem;
  border: 1px solid var(--ac-border);
  background: var(--ac-surface);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ac-muted);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.mock-year-tab:hover {
  border-color: var(--ac-primary-light);
  color: var(--ac-primary);
}

.mock-year-tab.active {
  background: #6d28d9;
  border-color: #6d28d9;
  color: #fff;
}

.mock-cards-grid {
  display: block;
}

.mock-group-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ac-text);
  margin: 1.5rem 0 1rem;
}

.mock-group-title:first-child {
  margin-top: 0;
}

.mock-cards-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 0.5rem;
}

.mock-card {
  background: #fafafa;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 1.25rem 1.25rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.mock-card-thumb {
  width: 48px;
  height: 32px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid #ddd;
}

.mock-card:hover {
  border-color: #d8b4fe;
  box-shadow: 0 8px 24px rgba(109, 40, 217, 0.1);
}

.mock-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: #111827;
  line-height: 1.35;
  margin: 0;
}

.mock-card-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 0.35rem 0.75rem;
  background: #ede9fe;
  color: #5b21b6;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
}

.mock-card-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.mock-stat {
  background: #f3f4f6;
  border-radius: 8px;
  padding: 0.65rem 0.35rem;
  text-align: center;
}

.mock-stat-icon {
  font-size: 0.85rem;
  opacity: 0.55;
  margin-bottom: 0.2rem;
}

.mock-stat-value {
  display: block;
  font-size: 1.1rem;
  font-weight: 800;
  color: #111827;
  line-height: 1.2;
}

.mock-stat-label {
  display: block;
  font-size: 0.72rem;
  color: #9ca3af;
  margin-top: 0.15rem;
}

.mock-card-cta {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.75rem 1rem;
  background: #7c3aed;
  color: #fff !important;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s;
}

.mock-card-cta:hover {
  background: #6d28d9;
  color: #fff;
}

.mock-card-pdfs {
  font-size: 0.78rem;
  color: #6b7280;
  text-align: center;
}

.mock-card-study {
  display: block;
  text-align: center;
  font-size: 0.82rem;
  color: var(--ac-primary);
  font-weight: 600;
  text-decoration: none;
}

.mock-card-study:hover {
  text-decoration: underline;
}

.mock-quiz-panel {
  border: 2px solid #e5e7eb;
}

.mock-cards-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 2rem;
  color: var(--ac-muted);
}

@media (max-width: 520px) {
  .mock-cards-grid {
    grid-template-columns: 1fr;
  }
}