/* ==================== CATEGORIES PAGE ==================== */
.categories-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========== CATEGORIES GRID SECTION ========== */
.categories-grid-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
    flex: 1;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .categories-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ========== FEATURED CATEGORY ========== */
.featured-category {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-surface);
}

.featured-category-card {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.featured-category-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    padding: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .featured-category-content {
        grid-template-columns: auto 1fr;
        align-items: center;
    }
}

.featured-category-icon {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--font-size-3xl);
    margin: 0 auto;
}

@media (min-width: 768px) {
    .featured-category-icon {
        margin: 0;
    }
}

.featured-category-info {
    text-align: center;
}

@media (min-width: 768px) {
    .featured-category-info {
        text-align: left;
    }
}

.featured-category-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.featured-category-description {
    font-size: var(--font-size-md);
    color: var(--color-gray-700);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.featured-category-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

@media (min-width: 768px) {
    .featured-category-stats {
        justify-content: flex-start;
    }
}

.featured-category-stats .stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.featured-category-stats strong {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
}

.featured-category-stats span {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* ========== BROWSE BY AUTHOR ========== */
.browse-by-author {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-white);
}

.authors-mini-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

@media (min-width: 640px) {
    .authors-mini-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .authors-mini-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ========== HOW TO USE ========== */
.how-to-use {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-surface);
}

.usage-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .usage-grid {
        grid-template-columns: repeat(2, 2fr);
        gap: var(--spacing-2xl);
    }
}

@media (min-width: 1024px) {
    .usage-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.usage-step {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    color: var(--color-black);
    margin-bottom: var(--spacing-xs);
}

.step-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
}