.memoriz-v4 .profile-card,
.memoriz-v4 .category-card,
.memoriz-v4 .blog-article,
.memoriz-v4 .comments-section,
.v4-state {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.memoriz-v4 .category-card {
    position: relative;
    min-height: 0;
    padding: 0;
    overflow: hidden;
    text-align: left;
    isolation: isolate;
}

.v4-category-image {
    width: 100%;
    height: clamp(120px, 12vw, 168px);
    object-fit: cover;
    background: linear-gradient(135deg, var(--color-primary), var(--color-gunmetal));
}

.v4-category-body {
    display: grid;
    gap: var(--space-2);
    padding: var(--space-4);
}

.memoriz-v4 .category-card h3 {
    margin: 0;
    font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.memoriz-v4 .category-card p {
    margin: 0;
    color: var(--color-muted);
    display: -webkit-box;
    min-height: 2.8em;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.memoriz-v4 .questions-count {
    width: fit-content;
    background: rgba(78, 205, 196, 0.16);
    color: var(--color-primary);
    border: 1px solid rgba(78, 205, 196, 0.36);
}