.tzq-class-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--tzq-spacing-lg);
}

.tzq-class-card {
    position: relative;
    display: flex;
    gap: var(--tzq-spacing-md);
    padding: var(--tzq-spacing-xl);
    border: 1px solid var(--tzq-primary-light);
    border-radius: var(--tzq-radius-md);
    background: linear-gradient(145deg, rgba(var(--tzq-primary-rgb), 0.08), rgba(var(--tzq-primary-rgb), 0.08));
    text-decoration: none;
    color: inherit;
    box-shadow: var(--tzq-shadow-lg);
    transition: transform var(--tzq-transition-fast), box-shadow var(--tzq-transition-fast), border-color var(--tzq-transition-fast);
}

.tzq-class-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 18% 20%, rgba(var(--tzq-primary-rgb), 0.12), transparent 42%), radial-gradient(circle at 80% 0%, rgba(var(--tzq-primary-rgb), 0.16), transparent 35%);
    opacity: 0.45;
    pointer-events: none;
}

.tzq-class-card:hover {
    transform: translateY(-4px);
    border-color: var(--tzq-primary);
    box-shadow: var(--tzq-card-shadow-hover);
}

.tzq-class-card__icon {
    width: 64px;
    height: 64px;
    display: grid;
    place-items: center;
    border-radius: var(--tzq-radius-md);
    background: var(--tzq-bg-primary);
    border: 1px solid var(--tzq-primary-light);
    font-size: var(--tzq-text-2xl);
    flex-shrink: 0;
}

.tzq-class-card__body {
    display: flex;
    flex-direction: column;
    gap: var(--tzq-spacing-xs);
}

.tzq-class-card__title {
    margin: 0;
    font-family: var(--tzq-font-heading);
    font-weight: 800;
    font-size: var(--tzq-text-base);
    color: var(--tzq-text-primary);
}

.tzq-class-card__meta {
    display: flex;
    align-items: center;
    gap: var(--tzq-spacing-xs);
    color: var(--tzq-text-secondary);
    font-size: var(--tzq-text-sm);
}

.tzq-class-card__desc {
    margin: 0;
    color: var(--tzq-text-secondary);
    line-height: 1.5;
}

.tzq-class-card__action {
    margin-left: auto;
    font-weight: var(--tzq-font-semibold);
    color: var(--tzq-primary);
}

.tzq-class-list {
    display: flex;
    flex-direction: column;
    gap: var(--tzq-spacing-sm);
}

.tzq-class-list__item {
    display: grid;
    grid-template-columns: 56px 1fr auto;
    gap: var(--tzq-spacing-md);
    padding: var(--tzq-spacing-md);
    border-radius: var(--tzq-radius-md);
    background: linear-gradient(145deg, var(--tzq-bg-primary) 0%, rgba(var(--tzq-primary-rgb), 0.08) 100%);
    align-items: center;
    text-decoration: none;
    color: inherit;
    transition: border-color var(--tzq-transition-fast), box-shadow var(--tzq-transition-fast), transform var(--tzq-transition-fast);
    box-shadow: var(--tzq-shadow-md);
    border: 1px solid var(--tzq-primary-light);
}

.tzq-class-list__item:hover {
    border-color: rgba(var(--tzq-primary-rgb), 0.35);
    box-shadow: var(--tzq-shadow-sm);
    transform: translateY(-1px);
}

.tzq-class-list__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--tzq-radius-md);
    background: var(--tzq-gradient-primary);
    display: grid;
    place-items: center;
    font-size: var(--tzq-text-xl);
    color: var(--tzq-text-inverse);
    border: 1px solid var(--tzq-primary-light);
    box-shadow: 0 10px 24px rgba(var(--tzq-primary-rgb), 0.18);
}

.tzq-class-list__body {
    display: flex;
    flex-direction: column;
    gap: var(--tzq-spacing-xs);
}

.tzq-class-list__head {
    display: flex;
    align-items: center;
    gap: var(--tzq-spacing-sm);
    justify-content: space-between;
}

.tzq-class-list__title {
    margin: 0;
    font-family: var(--tzq-font-heading);
    font-weight: 700;
    font-size: var(--tzq-text-xl);
    color: var(--tzq-text-primary);
}

.tzq-class-list__count {
    display: inline-flex;
    align-items: center;
    gap: var(--tzq-spacing-xs);
    padding: var(--tzq-spacing-2xs, 0.25rem) var(--tzq-spacing-sm);
    background: rgba(var(--tzq-primary-rgb), 0.1);
    color: var(--tzq-primary);
    border: 1px solid var(--tzq-primary-light);
    border-radius: var(--tzq-radius-md);
    font-weight: var(--tzq-font-semibold);
    font-size: var(--tzq-text-sm);
}

.tzq-class-list__meta {
    display: flex;
    align-items: center;
    gap: var(--tzq-spacing-sm);
    margin-top: var(--tzq-spacing-2xs, 0.25rem);
}

.tzq-class-list__actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--tzq-spacing-sm);
}

.tzq-class-list__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--tzq-spacing-xs) var(--tzq-spacing-md);
    background: var(--tzq-gradient-primary);
    color: var(--tzq-text-inverse);
    border-radius: var(--tzq-radius-md);
    border: 1px solid var(--tzq-primary-light);
    font-weight: var(--tzq-font-semibold);
    font-size: var(--tzq-text-sm);
    text-decoration: none;
    box-shadow: var(--tzq-shadow-xs);
    transition: transform var(--tzq-transition-fast), box-shadow var(--tzq-transition-fast);
}

.tzq-class-list__cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(var(--tzq-primary-rgb), 0.18);
}

.tzq-section--recent-tests .tzq-section__title {
    display: flex;
    align-items: center;
    gap: var(--tzq-spacing-sm);
    font-size: clamp(1.25rem, 2vw, 1.4rem);
    color: var(--tzq-text-primary);
}

.tzq-section--recent-tests .tzq-section__title::before {
    content: '🧠';
    font-size: 1.15em;
}

.tzq-section--recent-tests .tzq-list--tests, .tzq-section--recent-tests .tzq-archive__list {
    display: flex;
    flex-direction: column;
    gap: var(--tzq-spacing-sm);
    width: 100%;
}

body.tzq-dark-mode .tzq-class-card, [data-theme="dark"] .tzq-class-card {
    background: linear-gradient(145deg, rgba(var(--tzq-primary-rgb), 0.12), rgba(37, 99, 235, 0.12));
    border-color: var(--tzq-border-dark);
}