/* Reference Category List Block Styles */
.reference-category-list {
    margin: 2rem 4rem;
    padding: 1rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

@media (max-width: 768px) {
    .reference-category-list {
        grid-template-columns: repeat(1, 1fr);
    }
}

.category-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    transition: all 0.3s ease;
}

.category-card-link:hover {
    text-decoration: none;
    color: inherit;
}

.category-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    aspect-ratio: 1.4 / 1;
    justify-content: center;
    transition: all 0.3s ease;
}

.category-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* Stair effect - every 3rd item pattern */
.category-card-link:nth-child(3n+1) {
    transform: translateY(20px);
    /* First in row - lower */
}

.category-card-link:nth-child(3n+1):hover {
    transform: translateY(18px);
    /* Maintain stair + hover effect */
}

.category-card-link:nth-child(3n+2) {
    transform: translateY(0px);
    /* Middle in row - normal */
}

.category-card-link:nth-child(3n+2):hover {
    transform: translateY(-2px);
    /* Normal hover effect */
}

.category-card-link:nth-child(3n) {
    transform: translateY(-20px);
    /* Last in row - higher */
}

.category-card-link:nth-child(3n):hover {
    transform: translateY(-22px);
    /* Maintain stair + hover effect */
}

.category-card img {
    max-width: 30%;
    height: auto;
    margin-bottom: 0.5rem;
    border-radius: 4px;
}

.category-name {
    font-weight: 500;
    color: var(--global-palette8);
    font-size: 28px;
}