/* Collection/Catalog Page Styles */

.page-header {
    padding: 160px 0 var(--gap-3xl);
    background: linear-gradient(135deg, var(--hue-primary) 0%, #34495e 100%);
    color: var(--hue-white);
    text-align: center;
}

.page-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--hue-white);
    margin-bottom: var(--gap-md);
}

.page-description {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Collection Layout */
.collection-wrapper {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: var(--gap-3xl);
    padding: var(--gap-3xl) 0;
}

/* Sidebar Filters */
.filter-panel {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.filter-section {
    background: var(--hue-white);
    border-radius: var(--corner-lg);
    padding: var(--gap-xl);
    margin-bottom: var(--gap-lg);
    box-shadow: var(--elevation-sm);
}

.filter-title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--hue-primary);
    margin-bottom: var(--gap-md);
    padding-bottom: var(--gap-sm);
    border-bottom: 1px solid var(--hue-border);
}

.filter-list {
    list-style: none;
}

.filter-list li {
    margin-bottom: var(--gap-sm);
}

.filter-list label {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    font-size: 0.9375rem;
    color: var(--hue-text);
    cursor: pointer;
    transition: color var(--ease-fast);
}

.filter-list label:hover {
    color: var(--hue-secondary);
}

.filter-list input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--hue-secondary);
}

.price-range {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    margin-bottom: var(--gap-md);
}

.price-range input {
    width: 80px;
    padding: var(--gap-sm);
    border: 1px solid var(--hue-border);
    border-radius: var(--corner-sm);
    font-size: 0.875rem;
}

/* Sort Bar */
.sort-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--gap-md) var(--gap-lg);
    background: var(--hue-white);
    border-radius: var(--corner-md);
    margin-bottom: var(--gap-xl);
    box-shadow: var(--elevation-sm);
}

.results-count {
    font-size: 0.9375rem;
    color: var(--hue-text-light);
}

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

.sort-options label {
    font-size: 0.9375rem;
    color: var(--hue-text-light);
}

.sort-options select {
    padding: var(--gap-sm) var(--gap-lg) var(--gap-sm) var(--gap-md);
    border: 1px solid var(--hue-border);
    border-radius: var(--corner-sm);
    font-size: 0.9375rem;
    background: var(--hue-white);
    cursor: pointer;
}

/* Product Grid in Collection */
.collection-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap-xl);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--gap-sm);
    margin-top: var(--gap-3xl);
    padding-top: var(--gap-xl);
    border-top: 1px solid var(--hue-border);
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--gap-md);
    border-radius: var(--corner-md);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--ease-fast);
}

.pagination a {
    background: var(--hue-white);
    color: var(--hue-text);
    box-shadow: var(--elevation-sm);
}

.pagination a:hover {
    background: var(--hue-secondary);
    color: var(--hue-white);
}

.pagination .current {
    background: var(--hue-primary);
    color: var(--hue-white);
}

.pagination .prev,
.pagination .next {
    padding: 0 var(--gap-lg);
}

/* Mobile Filter Toggle */
.filter-toggle {
    display: none;
    align-items: center;
    gap: var(--gap-sm);
    padding: var(--gap-md) var(--gap-lg);
    background: var(--hue-primary);
    color: var(--hue-white);
    border-radius: var(--corner-md);
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: var(--gap-lg);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--gap-4xl) var(--gap-xl);
    background: var(--hue-white);
    border-radius: var(--corner-lg);
    box-shadow: var(--elevation-sm);
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--gap-lg);
    background: var(--hue-background);
    border-radius: var(--corner-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--hue-text-muted);
}

.empty-state h3 {
    color: var(--hue-primary);
    margin-bottom: var(--gap-sm);
}

.empty-state p {
    color: var(--hue-text-light);
    margin-bottom: var(--gap-xl);
}

/* Responsive */
@media (max-width: 1024px) {
    .collection-wrapper {
        grid-template-columns: 1fr;
    }
    
    .filter-panel {
        position: fixed;
        top: 0;
        left: -320px;
        width: 320px;
        height: 100vh;
        background: var(--hue-white);
        z-index: 1000;
        overflow-y: auto;
        padding: var(--gap-xl);
        transition: left var(--ease-normal);
        box-shadow: var(--elevation-xl);
    }
    
    .filter-panel.active {
        left: 0;
    }
    
    .filter-toggle {
        display: inline-flex;
    }
    
    .collection-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .collection-grid {
        grid-template-columns: 1fr;
    }
    
    .sort-bar {
        flex-direction: column;
        gap: var(--gap-md);
        align-items: flex-start;
    }
}