/* Related Categories Section - Mobile First Design */
.related-categories {
    margin: 30px 0;
    padding: 20px 10px;
    background: #f8f9fa;
    border-radius: 8px;
}

.related-title {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin: 0 0 20px 0;
    text-align: center;
    padding: 0 10px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 0 5px;
}

.related-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px 10px;
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
    min-height: 90px;
    text-align: center;
}

.related-card:hover {
    background: #f0f7ff;
    border-color: #4a90e2;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-decoration: none;
    color: #4a90e2;
}

.related-icon {
    font-size: 28px;
    margin-bottom: 8px;
    display: block;
    line-height: 1;
}

.related-name {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.3;
    display: block;
    word-break: break-word;
}

/* Tablet - 2 columns */
@media (min-width: 480px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .related-card {
        padding: 18px 12px;
        min-height: 100px;
    }
    
    .related-icon {
        font-size: 32px;
        margin-bottom: 10px;
    }
    
    .related-name {
        font-size: 14px;
    }
    
    .related-title {
        font-size: 22px;
    }
}

/* Small Desktop - 3 columns */
@media (min-width: 768px) {
    .related-categories {
        padding: 25px 15px;
    }
    
    .related-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .related-card {
        padding: 20px 15px;
        min-height: 110px;
    }
    
    .related-icon {
        font-size: 36px;
    }
    
    .related-name {
        font-size: 14px;
    }
}

/* Large Desktop - 4 columns */
@media (min-width: 992px) {
    .related-categories {
        padding: 30px 20px;
    }
    
    .related-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 15px;
    }
    
    .related-card {
        padding: 22px 15px;
        min-height: 120px;
    }
    
    .related-icon {
        font-size: 38px;
        margin-bottom: 12px;
    }
    
    .related-name {
        font-size: 15px;
    }
    
    .related-title {
        font-size: 24px;
        margin-bottom: 25px;
    }
}

/* Touch device optimization */
@media (hover: none) and (pointer: coarse) {
    .related-card {
        /* Larger touch targets for mobile */
        min-height: 95px;
        padding: 18px 12px;
    }
    
    .related-card:active {
        background: #e8f4ff;
        border-color: #4a90e2;
        transform: scale(0.98);
    }
}

/* Accessibility improvements */
.related-card:focus {
    outline: 3px solid #4a90e2;
    outline-offset: 2px;
}

/* Loading state (optional) */
.related-grid.loading .related-card {
    opacity: 0.6;
    pointer-events: none;
}

/* Empty state */
.related-grid:empty::after {
    content: "No related categories available";
    display: block;
    text-align: center;
    color: #999;
    padding: 20px;
    grid-column: 1 / -1;
}