/* --- Variables & Reset --- */
:root {
    --color-primary: #d81b60; 
    --color-success: #2e7d32;
    --color-warning: #f4b400;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-border: #e2e8f0;
    --font-main: 'Montserrat', sans-serif;
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-main); color: var(--color-text); background: var(--color-bg); line-height: 1.5; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { width: 95%; max-width: 1300px; margin: 0 auto; }
.hidden { display: none !important; }

/* --- Topbar & Header --- */
.topbar { background-color: var(--color-primary); color: #fff; text-align: center; padding: 8px 15px; font-size: 0.8rem; letter-spacing: 0.5px; }
.header { border-bottom: 1px solid var(--color-border); position: sticky; top: 0; background: #fff; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 70px; }
.logo { font-size: 1.6rem; font-weight: 600; color: var(--color-text); letter-spacing: 1px; cursor: pointer; }

/* --- VIEW 1: Store Collection --- */
.page-title-bar { 
    position: relative;
    background: linear-gradient(rgba(27, 59, 90, 0.6), rgba(27, 59, 90, 0.8)), url('images/40.jpg') center/cover no-repeat;
    padding: 70px 0; text-align: center; margin-bottom: 40px; 
}
.page-title-bar h1 { font-size: 2.5rem; font-weight: 600; margin-bottom: 15px; color: #ffffff; letter-spacing: 1px; }
.breadcrumb { font-size: 0.95rem; color: rgba(255, 255, 255, 0.8); }
.breadcrumb .separator { margin: 0 10px; font-size: 0.8rem; color: rgba(255, 255, 255, 0.5); }
.breadcrumb #breadcrumb-current { color: #ffffff; font-weight: 500; }

.layout-container { display: flex; align-items: flex-start; gap: 40px; margin-bottom: 80px; }
.main-content { flex-grow: 1; min-width: 0; }

/* Sidebar */
.sidebar { width: 260px; flex-shrink: 0; position: sticky; top: 100px; }
.sidebar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--color-text); }
.sidebar-header h2 { font-size: 1.2rem; font-weight: 600; }
.clear-btn { background: none; border: none; color: var(--color-text-light); text-decoration: underline; cursor: pointer; font-family: var(--font-main); font-size: 0.85rem; }
.filter-group { border-bottom: 1px solid var(--color-border); padding: 15px 0; }
.filter-group-header { display: flex; justify-content: space-between; align-items: center; cursor: pointer; }
.filter-group-header h3 { font-size: 1rem; font-weight: 500; }
.toggle-icon { width: 12px; height: 12px; position: relative; transition: var(--transition); }
.toggle-icon::before, .toggle-icon::after { content: ''; position: absolute; background: var(--color-text); }
.toggle-icon::before { top: 5px; left: 0; width: 12px; height: 2px; }
.toggle-icon::after { top: 0; left: 5px; width: 2px; height: 12px; transition: var(--transition); }
.filter-group.expanded .toggle-icon::after { transform: rotate(90deg); opacity: 0; }
.filter-group-content { margin-top: 15px; display: none; max-height: 300px; overflow-y: auto; padding-right: 5px; }
.filter-group.expanded .filter-group-content { display: block; }
.custom-checkbox { display: flex; align-items: center; margin-bottom: 12px; cursor: pointer; font-size: 0.9rem; color: var(--color-text-light); position: relative; padding-left: 28px; user-select: none; }
.custom-checkbox input { position: absolute; opacity: 0; cursor: pointer; height: 0; width: 0; }
.checkmark { position: absolute; top: 0; left: 0; height: 18px; width: 18px; border: 1px solid #ccc; border-radius: 3px; background-color: #fff; transition: var(--transition); }
.custom-checkbox input:checked ~ .checkmark { background-color: #fff; border-color: var(--color-text); }
.checkmark:after { content: ""; position: absolute; display: none; }
.custom-checkbox input:checked ~ .checkmark:after { display: block; left: 5px; top: 2px; width: 4px; height: 8px; border: solid var(--color-text); border-width: 0 2px 2px 0; transform: rotate(45deg); }
.count { margin-left: auto; font-size: 0.8rem; color: #999; }

/* Grid Toolbar */
.active-filters-container { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 20px; }
.filter-tag { background: var(--color-bg-alt); border: 1px solid var(--color-border); padding: 5px 10px; border-radius: 4px; font-size: 0.8rem; display: flex; align-items: center; gap: 8px; color: var(--color-text); }
.filter-tag span { cursor: pointer; color: var(--color-text-light); font-weight: bold; }
.store-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid var(--color-border); }
.product-count { font-size: 0.9rem; color: var(--color-text-light); }
.sort-select { padding: 8px; border: 1px solid var(--color-border); border-radius: 4px; font-family: var(--font-main); font-size: 0.9rem; cursor: pointer; }

/* Product Cards */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 30px; }
.product-card { text-align: center; transition: var(--transition); cursor: pointer; }
.product-card:hover .main-product-img { opacity: 0.9; }
.product-img-wrapper { margin-bottom: 15px; position: relative; background: var(--color-bg-alt); border-radius: 4px; overflow: hidden; }
.main-product-img { width: 100%; height: 280px; object-fit: cover; display: block; }
.product-title { font-size: 0.95rem; font-weight: 500; margin-bottom: 8px; }
.product-price { font-size: 1rem; font-weight: 600; color: var(--color-primary); }

/* --- VIEW 2: Product Detail Page (PDP) --- */
.pdp-breadcrumb { padding: 20px 0; font-size: 0.85rem; color: var(--color-text-light); border-bottom: 1px solid var(--color-border); margin-bottom: 40px; }
.pdp-breadcrumb .back-link { cursor: pointer; transition: var(--transition); }
.pdp-breadcrumb .back-link:hover { color: var(--color-primary); text-decoration: underline; }
.pdp-breadcrumb .separator { margin: 0 8px; }
.pdp-breadcrumb .current { color: var(--color-text); font-weight: 500; }

.pdp-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; margin-bottom: 60px; }

/* PDP Gallery */
.pdp-gallery { display: flex; gap: 20px; }
.pdp-thumbnails { display: flex; flex-direction: column; gap: 10px; width: 80px; }
.pdp-thumb { width: 100%; height: 80px; object-fit: cover; border: 2px solid transparent; cursor: pointer; border-radius: 4px; opacity: 0.7; transition: var(--transition); }
.pdp-thumb.active, .pdp-thumb:hover { opacity: 1; border-color: var(--color-primary); }
.pdp-main-image-wrapper { flex-grow: 1; }
.pdp-zoom-container { 
    width: 100%; 
    height: 500px; 
    background-color: var(--color-bg-alt); 
    border-radius: 4px; 
    overflow: hidden; 
    cursor: crosshair;
    background-position: 50% 50%;
    background-repeat: no-repeat;
}
.pdp-zoom-container img { width: 100%; height: 100%; object-fit: cover; transition: opacity 0.2s; pointer-events: none; }
.pdp-zoom-container:hover img { opacity: 0; /* Hides standard img to reveal zoomed background */ }
.zoom-hint { text-align: center; font-size: 0.8rem; color: var(--color-text-light); margin-top: 10px; }

/* PDP Info */
.pdp-title { font-size: 2rem; font-weight: 600; margin-bottom: 10px; }
.pdp-reviews { margin-bottom: 15px; font-size: 0.9rem; }
.stars { color: var(--color-warning); letter-spacing: 2px; }
.pdp-sku { font-size: 0.8rem; color: var(--color-text-light); margin-bottom: 20px; }

.pdp-pricing { display: flex; align-items: center; gap: 15px; margin-bottom: 25px; border-bottom: 1px solid var(--color-border); padding-bottom: 25px; }
.pdp-price { font-size: 1.8rem; font-weight: 600; color: var(--color-primary); }
.pdp-regular-price { font-size: 1.2rem; color: #999; text-decoration: line-through; }
.pdp-sale-badge { background: var(--color-warning); color: #fff; font-size: 0.75rem; font-weight: bold; padding: 3px 8px; border-radius: 3px; text-transform: uppercase; }

.pdp-quantity-wrap { margin-bottom: 20px; }
.pdp-quantity-wrap label { display: block; font-size: 0.9rem; margin-bottom: 5px; color: var(--color-text-light); }
.quantity-selector { display: flex; width: 120px; border: 1px solid var(--color-border); border-radius: 4px; overflow: hidden; }
.quantity-selector button { flex: 1; background: #f0f0f0; border: none; font-size: 1.2rem; cursor: pointer; transition: background 0.2s; }
.quantity-selector button:hover { background: #e0e0e0; }
.quantity-selector input { width: 40px; text-align: center; border: none; font-size: 1rem; font-family: var(--font-main); border-left: 1px solid var(--color-border); border-right: 1px solid var(--color-border); }

.delivery-info { font-size: 0.9rem; color: var(--color-success); font-weight: 500; margin-bottom: 25px; }

.pdp-actions { display: flex; gap: 15px; margin-bottom: 30px; }
.pdp-actions button { flex: 1; padding: 15px; font-size: 1rem; font-family: var(--font-main); font-weight: 600; border-radius: 4px; cursor: pointer; transition: var(--transition); border: none; }
.btn-cart { background: #e4c55a; color: #000; }
.btn-cart:hover { background: #d4b54a; }
.btn-buy-now { background: var(--color-success); color: #fff; }
.btn-buy-now:hover { background: #236327; }

.pdp-review-snippet { background: var(--color-bg-alt); padding: 15px; border-radius: 4px; font-size: 0.9rem; font-style: italic; color: var(--color-text-light); margin-bottom: 30px; border-left: 3px solid var(--color-warning); }

.pdp-characteristics { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; border-top: 1px solid var(--color-border); padding-top: 25px; }
.char-item { display: flex; align-items: flex-start; gap: 10px; font-size: 0.85rem; color: var(--color-text-light); }
.char-item .icon { font-size: 1.5rem; opacity: 0.6; }
.char-item strong { color: var(--color-text); }

/* PDP Accordions */
.pdp-accordions { border-top: 1px solid var(--color-border); }
.pdp-acc-item { border-bottom: 1px solid var(--color-border); }
.pdp-acc-header { padding: 20px 0; font-size: 1.1rem; font-weight: 500; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.pdp-acc-content { padding-bottom: 20px; color: var(--color-text-light); font-size: 0.95rem; line-height: 1.8; display: none; }
.pdp-acc-content ul { padding-left: 20px; list-style-type: disc; }

/* Action Button (Header) */
.action-btn { font-size: 0.9rem; font-weight: 500; color: var(--color-primary); border: 1px solid var(--color-primary); padding: 8px 15px; border-radius: 4px; transition: var(--transition); }
.action-btn:hover { background: var(--color-primary); color: #fff; }

/* Footer */
.footer { border-top: 1px solid var(--color-border); padding: 20px 0; background: #fff;}
.footer-bottom { text-align: center; font-size: 0.85rem; color: var(--color-text-light); }

/* --- Mobile Responsiveness --- */
@media (max-width: 900px) {
    .layout-container { flex-direction: column; }
    .sidebar { width: 100%; position: static; }
    .pdp-layout { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 768px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .main-product-img { height: 180px; }
    .pdp-gallery { flex-direction: column-reverse; }
    .pdp-thumbnails { flex-direction: row; width: 100%; overflow-x: auto; }
    .pdp-zoom-container { height: 350px; }
    .pdp-actions { flex-direction: column; }
}