.mock-exam-tabs {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 1rem;
  overflow-x: auto;
}

.mock-exam-tabs .container {
  display: flex;
  gap: 0.35rem;
  padding: 0.65rem 0;
  min-width: max-content;
}

.mock-exam-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: all 0.2s;
}

.mock-exam-tab:hover {
  color: #fff;
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.04);
}

.mock-exam-tab.active {
  color: #fff;
  border-color: var(--border-glow);
  background: rgba(27, 74, 156, 0.18);
}

.mock-exam-tab.tab-ielts.active { background: rgba(27, 74, 156, 0.2); }
.mock-exam-tab.tab-pte.active { background: rgba(0, 174, 239, 0.18); }
.mock-exam-tab.tab-det.active { background: rgba(88, 204, 2, 0.15); }
.mock-exam-tab.tab-oietc.active { background: rgba(139, 92, 246, 0.18); }

.mock-hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.mock-hub-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.25s;
  height: 100%;
}

.mock-hub-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.mock-hub-card h3 { font-size: 1.1rem; }
.mock-hub-card p { color: var(--text-muted); font-size: 0.9rem; flex: 1; }
.mock-hub-card .hub-meta { display: flex; flex-wrap: wrap; gap: 0.35rem; }

.course-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1rem;
}

.course-subnav a {
  font-size: 0.88rem;
  color: var(--accent-2);
  text-decoration: none;
}

.course-subnav a:hover { text-decoration: underline; }

@media (max-width: 768px) {
  .mock-exam-tabs {
    padding: 0 max(0.75rem, env(safe-area-inset-left)) 0 max(0.75rem, env(safe-area-inset-right));
  }
  .mock-exam-tabs .container {
    padding: 0.5rem 0;
    gap: 0.3rem;
  }
  .mock-exam-tab {
    padding: 0.5rem 0.85rem;
    font-size: 0.82rem;
    min-height: 40px;
  }
  .mock-hub-grid { grid-template-columns: 1fr; gap: 1rem; }
  .mock-hub-card { padding: 1.25rem; }
  .mock-hub-card:hover { transform: none; }
  .course-subnav { gap: 0.4rem; }
}

@media (max-width: 480px) {
  .mock-exam-tab { font-size: 0.75rem; padding: 0.45rem 0.65rem; }
}