:root {
    --bg-main: #0f1115;
    --bg-secondary: #1a1d24;
    --bg-card: #22262f;
    --bg-hover: #2c313c;
    
    --text-primary: #f0f0f0;
    --text-secondary: #9ba1b0;
    --text-muted: #8b92a0; /* Improved contrast */
    
    --accent-gold: #d4af37;
    --accent-gold-hover: #f1c40f;
    --accent-gold-light: rgba(212, 175, 55, 0.15);
    
    --accent-red: #ff4757;
    --accent-red-light: rgba(255, 71, 87, 0.15);
    --accent-purple: #9c88ff;
    
    --border-color: #333845;
    --border-light: rgba(255, 255, 255, 0.05);
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-gold: 0 0 15px rgba(212, 175, 55, 0.2);
    --shadow-red: 0 0 15px rgba(255, 71, 87, 0.2);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --z-badge: 2;
    --z-above: 10;
    --z-header: 100;
    --z-sidebar: 1000;
    --z-modal: 1050;
}

/* Utilities */
.text-accent-red { color: var(--accent-red); }
.text-accent-gold { color: var(--accent-gold); }
.whitespace-nowrap { white-space: nowrap; }
.flex-center-gap { display: flex; gap: 1rem; align-items: center; }
.hide-desktop { display: none; }
.mb-auto { margin-bottom: auto; }
.mt-sm { margin-top: 0.5rem; }
.mt-md { margin-top: 1rem; }

/* Reset for button product-card */
button.product-card {
    text-align: left;
    font-family: inherit;
    color: inherit;
    padding: 0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 600; letter-spacing: 0.5px; }

.app-header {
    background-color: rgba(26, 29, 36, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    padding: 1rem 0;
}

.header-container { max-width: 1400px; margin: 0 auto; padding: 0 2rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.logo h1 { font-size: 1.75rem; color: var(--text-primary); margin-bottom: 0.25rem; }
.logo span { color: var(--accent-gold); }
.logo p { font-size: 0.8rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }

.search-container { flex: 1; max-width: 600px; position: relative; }
.search-icon { position: absolute; left: 1.25rem; top: 50%; transform: translateY(-50%); color: var(--text-secondary); }
#searchInput { width: 100%; padding: 1rem 1rem 1rem 3rem; background-color: var(--bg-main); border: 1px solid var(--border-color); border-radius: 50px; color: var(--text-primary); font-family: var(--font-body); font-size: 1rem; transition: var(--transition); }
#searchInput:focus { outline: none; border-color: var(--accent-gold); box-shadow: 0 0 0 3px var(--accent-gold-light); }
.clear-btn { position: absolute; right: 1rem; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 1rem; transition: var(--transition); }
.clear-btn:hover { color: var(--text-primary); }

.header-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.toggles-container { display: flex; align-items: center; gap: 1.5rem; margin-right: 1rem; }
.sort-container { display: flex; align-items: center; gap: 0.75rem; color: var(--text-secondary); }
.sort-container select { background-color: var(--bg-main); color: var(--text-primary); border: 1px solid var(--border-color); padding: 0.5rem 2rem 0.5rem 1rem; border-radius: var(--radius-sm); font-family: var(--font-body); cursor: pointer; appearance: none; background-image: url("assets/select-arrow.svg"); background-repeat: no-repeat; background-position: right 0.5rem center; background-size: 1em; transition: var(--transition); }
.sort-container select:focus { outline: none; border-color: var(--accent-gold); }

.app-main { max-width: 1400px; margin: 2rem auto; padding: 0 2rem; display: flex; gap: 2.5rem; }

.sidebar { width: 280px; flex-shrink: 0; display: flex; flex-direction: column; gap: 2rem; }
.sidebar-header { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-color); padding-bottom: 1rem; }
.sidebar-header h2 { font-size: 1.25rem; }
.text-btn { background: none; border: none; color: var(--accent-gold); cursor: pointer; font-size: 0.875rem; font-weight: 500; transition: var(--transition); }
.text-btn:hover { color: var(--accent-gold-hover); text-decoration: underline; }

.filter-section h3 { font-size: 1rem; color: var(--text-secondary); margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
.filter-search { margin-bottom: 1rem; }
.filter-search input { width: 100%; padding: 0.5rem; background-color: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); font-family: var(--font-body); font-size: 0.875rem; }
.filter-search input:focus { outline: none; border-color: var(--text-secondary); }

.checkbox-group { display: flex; flex-direction: column; gap: 0.75rem; max-height: 250px; overflow-y: auto; padding-right: 0.5rem; }
.checkbox-group::-webkit-scrollbar { width: 4px; }
.checkbox-group::-webkit-scrollbar-track { background: var(--bg-main); }
.checkbox-group::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }

.checkbox-label { display: flex; align-items: flex-start; gap: 0.75rem; cursor: pointer; font-size: 0.9rem; color: var(--text-primary); transition: var(--transition); }
.checkbox-label:hover { color: var(--accent-gold); }
.checkbox-label input[type="checkbox"] { appearance: none; -webkit-appearance: none; width: 1.15rem; height: 1.15rem; border: 1px solid var(--border-color); border-radius: 4px; background-color: var(--bg-main); display: grid; place-content: center; margin-top: 0.1rem; cursor: pointer; transition: var(--transition); }
.checkbox-label input[type="checkbox"]:focus-visible { outline: 2px solid var(--accent-gold); outline-offset: 2px; }
.checkbox-label input[type="checkbox"]::before { content: ""; width: 0.65em; height: 0.65em; transform: scale(0); transition: 120ms transform ease-in-out; box-shadow: inset 1em 1em var(--bg-main); background-color: var(--bg-main); transform-origin: center; clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%); }
.checkbox-label input[type="checkbox"]:checked { background-color: var(--accent-gold); border-color: var(--accent-gold); }
.checkbox-label input[type="checkbox"]:checked::before { transform: scale(1); }
#onSaleToggle:checked { background-color: var(--accent-red); border-color: var(--accent-red); }
.count { color: var(--text-muted); font-size: 0.8rem; margin-left: auto; }

.results-section { flex: 1; }
.results-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border-light); }
.results-header h2 { font-size: 1.25rem; font-weight: 400; color: var(--text-secondary); }
.sync-status { font-size: 0.8rem; color: var(--text-muted); margin-left: 1rem; flex: 1; }
.mobile-filter-btn { display: none; background-color: var(--bg-secondary); color: var(--text-primary); border: 1px solid var(--border-color); padding: 0.5rem 1rem; border-radius: var(--radius-sm); cursor: pointer; gap: 0.5rem; align-items: center; }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 2rem; }
.product-card { background-color: var(--bg-card); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-color); transition: var(--transition); display: flex; flex-direction: column; position: relative; box-shadow: var(--shadow-sm); cursor: pointer; outline: none; }
.product-card:focus-visible { border-color: var(--accent-gold); box-shadow: 0 0 0 3px var(--accent-gold-light); }
.product-card.out-of-stock { opacity: 0.7; }
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-gold); border-color: var(--accent-gold); }
.product-card.is-deal:hover { box-shadow: var(--shadow-red); border-color: var(--accent-red); }

.product-image-container { position: relative; padding-top: 100%; background-color: var(--bg-main); overflow: hidden; }
.product-image { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.product-card:hover .product-image { transform: scale(1.05); }

.status-badge { position: absolute; top: 10px; right: 10px; padding: 4px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: bold; z-index: var(--z-badge); }
.badge-sold-out { background: var(--bg-main); color: var(--text-primary); border: 1px solid var(--border-color); }
.badge-sale { background: var(--accent-red); color: white; box-shadow: 0 2px 10px rgba(255, 71, 87, 0.5); }

.product-info { padding: 1.5rem; display: flex; flex-direction: column; flex: 1; }
.product-vendor { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; color: var(--accent-gold); margin-bottom: 0.5rem; }
.product-title { font-size: 1.1rem; margin-bottom: 1rem; color: var(--text-primary); line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-footer { margin-top: auto; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border-light); padding-top: 1rem; }

.price-block { display: flex; flex-direction: column; }
.product-price { font-size: 1.25rem; font-weight: 600; color: var(--text-primary); }
.product-price.sale { color: var(--accent-red); }
.compare-price { font-size: 0.8rem; text-decoration: line-through; color: var(--text-muted); }

.view-btn { display: inline-flex; align-items: center; justify-content: center; background-color: var(--bg-secondary); color: var(--text-primary); text-decoration: none; padding: 0.5rem 1rem; border-radius: var(--radius-sm); font-size: 0.875rem; font-weight: 500; transition: var(--transition); border: 1px solid var(--border-color); pointer-events: none; }
.product-card:hover .view-btn { background-color: var(--accent-gold); color: var(--bg-main); border-color: var(--accent-gold); }
.product-card.is-deal:hover .view-btn { background-color: var(--accent-red); border-color: var(--accent-red); color: white; }

.hidden { display: none !important; }
.loading-state, .error-state, .no-results-state { text-align: center; padding: 4rem 2rem; background-color: var(--bg-card); border-radius: var(--radius-md); border: 1px dashed var(--border-color); }
.loading-state p { color: var(--accent-gold); font-family: var(--font-heading); font-size: 1.25rem; margin-top: 1.5rem; }
.error-state i, .no-results-state i { font-size: 3rem; color: var(--text-muted); margin-bottom: 1rem; }
.error-state h3, .no-results-state h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.error-state p, .no-results-state p { color: var(--text-secondary); margin-bottom: 1.5rem; }

.spinner { width: 50px; height: 50px; border: 3px solid var(--border-color); border-top-color: var(--accent-gold); border-radius: 50%; margin: 0 auto; animation: spin 1s linear infinite; }
.spinner.small { width: 20px; height: 20px; border-width: 2px; display: inline-block; vertical-align: middle; margin: 0 10px 0 0; }
@keyframes spin { to { transform: rotate(360deg); } }

.btn { padding: 0.75rem 1.5rem; border-radius: var(--radius-sm); font-family: var(--font-body); font-weight: 500; cursor: pointer; transition: var(--transition); border: none; text-decoration: none; display: inline-block; text-align: center; }
.primary-btn { background-color: var(--accent-gold); color: var(--bg-main); }
.primary-btn:hover { background-color: var(--accent-gold-hover); }
.secondary-btn { background-color: var(--bg-secondary); color: var(--text-primary); border: 1px solid var(--border-color); }
.secondary-btn:hover { background-color: var(--bg-hover); }
.load-more-container { text-align: center; margin-top: 3rem; }

.tag-badge { display: inline-block; padding: 0.2rem 0.5rem; background-color: rgba(255,255,255,0.05); border-radius: 4px; font-size: 0.7rem; color: var(--text-secondary); margin-right: 0.25rem; margin-bottom: 0.25rem; }
.tag-badge.primary { border: 1px solid var(--accent-gold); color: var(--accent-gold); }
.tag-badge.luxury { border: 1px solid var(--accent-purple); color: var(--accent-purple); }
.tags-container { margin-bottom: 1rem; display: flex; flex-wrap: wrap; }

/* MODAL */
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: var(--z-modal); display: flex; align-items: center; justify-content: center; }
.modal-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15, 17, 21, 0.85); backdrop-filter: blur(8px); }
.modal-content { position: relative; width: 90%; max-width: 1000px; max-height: 90vh; background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-lg); box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5); display: flex; flex-direction: column; overflow: hidden; animation: modalIn 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes modalIn { from { opacity: 0; transform: translateY(20px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }

.modal-close { position: absolute; top: 1.5rem; right: 1.5rem; background: rgba(0,0,0,0.5); border: none; color: white; width: 40px; height: 40px; border-radius: 50%; font-size: 1.25rem; cursor: pointer; z-index: var(--z-above); transition: var(--transition); display: grid; place-content: center; }
.modal-close:hover { background: var(--accent-gold); color: var(--bg-main); transform: rotate(90deg); }

.modal-layout { display: flex; height: 100%; max-height: 90vh; }
.modal-gallery { flex: 1; background: var(--bg-main); display: flex; overflow-x: auto; scroll-snap-type: x mandatory; position: relative; min-height: 300px; }
.modal-gallery::-webkit-scrollbar { display: none; }
.modal-gallery img { width: 100%; height: 100%; object-fit: contain; flex-shrink: 0; scroll-snap-align: start; padding: 1rem; }

.modal-details { flex: 1; padding: 3rem 2.5rem; display: flex; flex-direction: column; overflow-y: auto; }
.modal-vendor { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 2px; color: var(--accent-gold); margin-bottom: 0.5rem; }
.modal-title { font-size: 2rem; margin-bottom: 1rem; color: var(--text-primary); line-height: 1.2; }
.modal-price-container { margin-bottom: 1.5rem; }
.modal-badges { margin-bottom: 2rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.modal-badges .tag-badge { font-size: 0.8rem; padding: 0.4rem 0.8rem; margin:0; }

.modal-desc-wrapper { flex: 1; margin-bottom: 2rem; }
.modal-description { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }
.modal-description p { margin-bottom: 1rem; }
.modal-description ul, .modal-description ol { margin-left: 1.5rem; margin-bottom: 1rem; }
.modal-description li { margin-bottom: 0.5rem; }
.modal-description strong, .modal-description b { color: var(--text-primary); }

.modal-buy-btn { width: 100%; font-size: 1.1rem; padding: 1rem; }

@media (max-width: 992px) {
    .app-main { flex-direction: column; }
    .sidebar { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: var(--bg-main); z-index: var(--z-sidebar); padding: 2rem; border-radius: 0; border: none; overflow-y: auto; }
    .sidebar.active { display: flex; }
    .close-sidebar-btn { display: block !important; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; }
    .mobile-filter-btn { display: flex; }
    .checkbox-label { font-size: 1.1rem; padding: 0.5rem 0; }
    .checkbox-label input[type="checkbox"] { width: 1.5rem; height: 1.5rem; }
    .modal-layout { flex-direction: column; }
    .modal-gallery { min-height: 300px; height: 300px; flex: none; }
    .modal-details { padding: 2rem 1.5rem; }
}

@media (max-width: 768px) {
    .header-container { flex-direction: column; align-items: stretch; }
    .search-container { max-width: 100%; }
    .header-actions { justify-content: space-between; }
    .toggles-container { margin-bottom: 1rem; }
    .product-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
}
.store-badge {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    background: rgba(0, 0, 0, 0.7);
    color: var(--accent-gold);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    backdrop-filter: blur(4px);
    z-index: var(--z-above);
}