/* ========================================
   CATEGORY PAGE STYLES
   ======================================== */

/* Category Header */
.category-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.category-intro {
    max-width: 900px;
    margin: 0 auto;
}

.category-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

.category-icon i {
    font-size: 3rem;
    color: #ffffff;
}

.category-intro h1 {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
}

.category-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stat {
    background: #ffffff;
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.stat strong {
    display: block;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat span {
    font-size: 0.875rem;
    color: var(--text-color);
}

/* Quick Guide */
.quick-guide {
    background: #ffffff;
    padding: var(--spacing-xl) 0;
}

.quick-guide h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.75rem;
    color: var(--dark-color);
}

.guide-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.guide-item {
    background: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
}

.guide-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.guide-item h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-color);
}

.guide-item p {
    font-size: 0.875rem;
    color: var(--text-color);
}

/* Filters Section */
.filters-section {
    background: var(--light-gray);
    padding: var(--spacing-lg) 0;
    border-bottom: 3px solid #e0e7ff;
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.filters-header h2 {
    font-size: 1.25rem;
    color: var(--dark-color);
}

.reset-filters {
    background: transparent;
    border: 2px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

.reset-filters:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #ffffff;
}

.filters-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.filter-select {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.875rem;
    background: #ffffff;
    cursor: pointer;
    transition: border-color 0.3s;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Results Header */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.results-header h2 {
    font-size: 1.5rem;
    color: var(--dark-color);
}

.sort-options {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sort-options label {
    font-size: 0.875rem;
    color: var(--text-color);
}

.sort-options select {
    padding: 0.5rem 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
}

/* Product Brand Label */
.product-brand {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

/* No Results */
.no-results {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--light-gray);
    border-radius: 12px;
    margin: var(--spacing-xl) 0;
}

.no-results i {
    font-size: 4rem;
    color: #d1d5db;
    margin-bottom: var(--spacing-md);
}

.no-results h3 {
    font-size: 1.5rem;
    color: var(--dark-color);
    margin-bottom: var(--spacing-sm);
}

.no-results p {
    color: var(--text-color);
    font-size: 1rem;
}

/* Buying Guide */
.buying-guide {
    background: #ffffff;
    padding: var(--spacing-xl) 0;
}

.guide-content {
    max-width: 900px;
    margin: var(--spacing-lg) auto 0;
}

.guide-section {
    background: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: 12px;
    margin-bottom: var(--spacing-lg);
}

.guide-section:last-child {
    margin-bottom: 0;
}

.guide-section h3 {
    font-size: 1.25rem;
    color: var(--dark-color);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.guide-section h3 i {
    color: var(--primary-color);
}

.guide-section p {
    color: var(--text-color);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.guide-section p:last-child {
    margin-bottom: 0;
}

.guide-section ul {
    margin-left: var(--spacing-lg);
    color: var(--text-color);
}

.guide-section li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.guide-section strong {
    color: var(--dark-color);
}

/* FAQ Section */
.faq-section {
    background: var(--light-gray);
    padding: var(--spacing-xl) 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.faq-item {
    background: #ffffff;
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.faq-item h3 {
    font-size: 1.125rem;
    color: var(--dark-color);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: start;
}

.faq-item h3::before {
    content: 'Q:';
    font-weight: 700;
    color: var(--primary-color);
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.faq-item p {
    color: var(--text-color);
    line-height: 1.6;
    padding-left: 2rem;
}

/* Responsive - Tablet */
@media (min-width: 768px) {
    .category-intro h1 {
        font-size: 2.75rem;
    }

    .category-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .guide-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .filters-wrapper {
        grid-template-columns: repeat(2, 1fr);
    }

    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Responsive - Desktop */
@media (min-width: 1024px) {
    .category-intro h1 {
        font-size: 3rem;
    }

    .guide-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .filters-wrapper {
        grid-template-columns: repeat(4, 1fr);
    }

    .filters-section {
        top: 80px;
    }
}

/* Animation for filtered products */
.product-card.filtering {
    animation: fadeOut 0.3s;
}

.product-card.showing {
    animation: fadeIn 0.3s;
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.95);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Loading State */
.products-grid.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* Filter Active Indicator */
.filter-select.active {
    border-color: var(--primary-color);
    background: #eff6ff;
}