* { box-sizing: border-box; }
:root {
    --black: #111111;
    --dark: #1a1a1a;
    --gray-900: #222222;
    --gray-700: #444444;
    --gray-500: #777777;
    --gray-300: #cccccc;
    --gray-200: #e2e2e2;
    --gray-100: #f2f2f2;
    --white: #ffffff;
}
body { font-family: 'Segoe UI', Arial, sans-serif; margin: 0; background: var(--gray-100); color: var(--gray-900); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }

/* Header */
.site-header { background: var(--header-bg, var(--black)); color: var(--header-text, var(--white)); padding: 14px 0; position: relative; }
.header-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.logo { font-size: 22px; font-weight: bold; color: var(--header-text, var(--white)); display: flex; align-items: center; }
.site-logo-img { max-height: 42px; max-width: 160px; }
.site-header nav { display: flex; align-items: center; flex-wrap: wrap; }
.site-header nav a { color: var(--header-text, var(--white)); margin-left: 20px; font-weight: 500; }
.site-header nav a:hover { opacity: 0.75; }

/* Mobile nav toggle (checkbox hack, no JS needed) */
.nav-toggle { display: none; }
.nav-toggle-label { display: none; cursor: pointer; padding: 6px; }
.nav-toggle-label span, .nav-toggle-label span::before, .nav-toggle-label span::after {
    display: block; width: 24px; height: 2px; background: var(--header-text, var(--white)); position: relative; transition: all .2s;
}
.nav-toggle-label span::before, .nav-toggle-label span::after { content: ''; position: absolute; }
.nav-toggle-label span::before { top: -7px; }
.nav-toggle-label span::after { top: 7px; }

main.container { min-height: 70vh; padding-top: 24px; padding-bottom: 40px; }

.section-title { font-size: 20px; margin: 0 0 16px; }

.filter-bar { margin-bottom: 20px; display: flex; flex-wrap: wrap; gap: 8px; }
.chip { background: var(--white); border: 1px solid var(--gray-300); padding: 6px 14px; border-radius: 20px; font-size: 14px; }
.chip.active, .chip:hover { background: var(--black); color: var(--white); border-color: var(--black); }

.collection-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(var(--coll-w, 240px), var(--coll-w, 240px))); justify-content: center; gap: 20px; margin-bottom: 36px; }
.collection-card { position: relative; border-radius: 10px; overflow: hidden; height: var(--coll-h, 220px); box-shadow: 0 2px 8px rgba(0,0,0,0.12); display: block; }
.collection-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .2s; }
.collection-card:hover img { transform: scale(1.05); }
.collection-card .no-img { width:100%; height:100%; display:flex; align-items:center; justify-content:center; background:var(--gray-200); }
.collection-card-overlay { position: absolute; left: 0; right: 0; bottom: 0; background: linear-gradient(transparent, rgba(0,0,0,0.8)); color: var(--white); padding: 30px 16px 14px; }
.collection-card-overlay h3 { margin: 0; font-size: 18px; }
.collection-card-actions { position: absolute; top: 10px; right: 10px; }
.pdf-btn { background: rgba(255,255,255,0.92); color: var(--black); padding: 5px 10px; border-radius: 5px; font-size: 12px; font-weight: 600; border: 1px solid var(--black); }
.pdf-btn:hover { background: var(--white); }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; }
.product-card { background: var(--white); border-radius: 8px; overflow: hidden; box-shadow: 0 1px 4px rgba(0,0,0,0.08); transition: transform .15s; border: 1px solid var(--gray-200); }
.product-card:hover { transform: translateY(-3px); }
.product-img { height: var(--prod-h, 180px); background: var(--gray-100); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: var(--prod-fit, cover); }
.no-img { color: var(--gray-500); font-size: 13px; }
.no-img.large { height: 100%; display: flex; align-items: center; justify-content: center; }
.product-info { padding: 12px; }
.product-info h3 { margin: 0 0 6px; font-size: 15px; }
.price { color: var(--black); font-weight: bold; margin: 0; }
.style-number { color: var(--gray-500); font-size: 13px; margin: 2px 0 8px; }
.style-number-small { color: var(--gray-500); font-size: 12px; margin: 2px 0; }

.product-detail { display: flex; flex-wrap: wrap; gap: 30px; background: var(--white); padding: 24px; border-radius: 8px; }
.product-detail-img { flex: 1 1 320px; }
.product-detail-img img { width: 100%; border-radius: 8px; }
.gallery-thumbs { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.gallery-thumbs img { width: 64px; height: 64px; object-fit: cover; border-radius: 6px; cursor: pointer; border: 2px solid transparent; }
.gallery-thumbs img.active-thumb { border-color: var(--black); }
.product-detail-info { flex: 1 1 380px; min-width: 0; }
.product-detail-info .price { font-size: 22px; margin-bottom: 10px; }
.desc { color: var(--gray-700); line-height: 1.5; }

.size-table { width: 100%; border-collapse: collapse; margin: 14px 0; display: block; overflow-x: auto; white-space: nowrap; }
.size-table th, .size-table td { padding: 10px; border-bottom: 1px solid var(--gray-200); text-align: left; font-size: 14px; }
.qty-input { width: 60px; padding: 6px; border: 1px solid var(--gray-300); border-radius: 4px; }

.btn-primary { display: inline-block; background: var(--black); color: var(--white); padding: 12px 22px; border: none; border-radius: 6px; font-size: 15px; cursor: pointer; }
.btn-primary:hover { background: var(--gray-700); }
.btn-secondary { display: inline-block; background: var(--gray-500); color: var(--white); padding: 10px 18px; border: none; border-radius: 6px; font-size: 14px; cursor: pointer; }
.btn-secondary:hover { background: var(--gray-700); }
.error, .error-box { color: var(--white); background: var(--gray-900); padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; border-left: 4px solid var(--black); }

.cart-table { width: 100%; border-collapse: collapse; background: var(--white); display: block; overflow-x: auto; white-space: nowrap; }
.cart-table th, .cart-table td { padding: 12px; border-bottom: 1px solid var(--gray-200); text-align: left; font-size: 14px; }
.cart-product { display: flex; align-items: center; gap: 10px; white-space: normal; }
.cart-product img { width: 50px; height: 50px; object-fit: cover; border-radius: 4px; }
.remove-link { color: var(--gray-700); font-size: 13px; text-decoration: underline; }
.cart-actions { margin: 14px 0; }
.cart-total { margin-top: 20px; text-align: right; }

.checkout-form { background: var(--white); padding: 24px; border-radius: 8px; max-width: 600px; }
.checkout-form label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: 14px; }
.checkout-form input, .checkout-form textarea { width: 100%; padding: 10px; border: 1px solid var(--gray-300); border-radius: 5px; font-family: inherit; }
.checkout-form input:focus, .checkout-form textarea:focus { outline: 2px solid var(--black); border-color: var(--black); }

.thankyou-box { background: var(--white); padding: 40px; text-align: center; border-radius: 8px; }

.site-footer { background: var(--footer-bg, var(--black)); color: var(--footer-text, var(--gray-300)); padding: 20px 0; text-align: center; font-size: 13px; margin-top: 40px; }

/* Admin */
.admin-wrap { display: flex; min-height: 100vh; }
.admin-sidebar { width: 220px; flex-shrink: 0; background: var(--black); color: var(--white); padding: 20px 0; }
.admin-sidebar a { display: block; color: var(--gray-300); padding: 12px 24px; font-size: 14px; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: var(--gray-700); color: var(--white); }
.admin-content { flex: 1; padding: 24px; background: var(--gray-100); min-width: 0; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.data-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: 6px; overflow: hidden; display: block; overflow-x: auto; white-space: nowrap; }
.data-table th, .data-table td { padding: 12px; border-bottom: 1px solid var(--gray-200); text-align: left; font-size: 14px; }
.data-table th { background: var(--gray-100); }
.form-box { background: var(--white); padding: 24px; border-radius: 8px; max-width: 640px; }
.form-box label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: 14px; }
.form-box input, .form-box select, .form-box textarea { width: 100%; padding: 10px; border: 1px solid var(--gray-300); border-radius: 5px; font-family: inherit; }
.form-box input:focus, .form-box select:focus, .form-box textarea:focus { outline: 2px solid var(--black); border-color: var(--black); }
.size-row { display: flex; gap: 10px; margin-bottom: 8px; align-items: center; flex-wrap: wrap; }
.size-row input { width: auto; flex: 1; min-width: 80px; }
.badge { padding: 3px 10px; border-radius: 12px; font-size: 12px; }
.badge.active { background: var(--gray-900); color: var(--white); }
.badge.inactive { background: var(--gray-200); color: var(--gray-700); }
.login-box { max-width: 340px; margin: 80px auto; background: var(--white); padding: 30px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.thumb { width: 50px; height: 50px; object-fit: cover; border-radius: 4px; }

.gallery-admin { display: flex; flex-wrap: wrap; gap: 10px; margin: 10px 0; }
.gallery-admin-item { position: relative; }
.gallery-admin-item img { width: 80px; height: 80px; object-fit: cover; border-radius: 6px; }
.gallery-admin-item .remove-thumb { position: absolute; top: -6px; right: -6px; background: var(--black); color: var(--white); border-radius: 50%; width: 20px; height: 20px; font-size: 12px; line-height: 20px; text-align: center; cursor: pointer; border: none; }

/* PDF / print page */
.pdf-page { background: var(--white); padding: 30px; max-width: 900px; margin: 0 auto; }
.pdf-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 3px solid var(--black); padding-bottom: 14px; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.pdf-header img { max-height: 50px; }
.pdf-products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.pdf-product { border: 1px solid var(--gray-200); border-radius: 8px; overflow: hidden; page-break-inside: avoid; }
.pdf-product img { width: 100%; height: 140px; object-fit: cover; }
.pdf-product-info { padding: 8px; }
.pdf-product-info h4 { margin: 0 0 4px; font-size: 13px; }
.pdf-product-info .price { font-size: 13px; }
.pdf-toolbar { text-align: center; margin-bottom: 20px; }

/* PDF catalog-style product cards moved inline into collection_pdf.php for
   reliable print page-breaks. See that file's <style> block. */
@media print {
    .pdf-toolbar { display: none; }
    body { background: var(--white); }
    .pdf-page { max-width: 100%; padding: 0; }
    .pdf-catalog-card { page-break-after: always; break-after: page; page-break-inside: avoid; break-inside: avoid; }
    .pdf-catalog-card:last-child { page-break-after: auto; break-after: auto; }
}

/* ============ Responsive: tablet ============ */
@media (max-width: 900px) {
    .product-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
    .collection-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
    .pdf-products { grid-template-columns: repeat(2, 1fr); }
}

/* ============ Responsive: mobile ============ */
@media (max-width: 640px) {
    .container { padding: 0 12px; }

    .nav-toggle-label { display: block; }
    .site-header nav {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        margin-top: 14px;
    }
    .nav-toggle:checked ~ nav { display: flex; }
    .site-header nav a { margin: 0; padding: 10px 0; width: 100%; border-top: 1px solid rgba(255,255,255,0.15); }
    .site-header nav a:first-child { border-top: none; }

    main.container { padding-top: 16px; }
    .section-title { font-size: 18px; }

    .product-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
    .collection-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
    .collection-card { height: 170px; }
    .product-img { height: 130px; }

    .product-detail { padding: 16px; gap: 16px; }
    .product-detail-info .price { font-size: 19px; }

    .checkout-form, .form-box, .thankyou-box, .login-box { padding: 18px; max-width: 100%; }
    .login-box { margin: 40px auto; }

    .pdf-products { grid-template-columns: repeat(2, 1fr); }
    .pdf-header { text-align: center; justify-content: center; }
    .pdf-catalog-card { flex-direction: column; min-height: 0; }
    .pdf-catalog-img { width: 100%; flex-basis: auto; height: 220px; }

    .btn-primary, .btn-secondary { width: 100%; text-align: center; }

    /* Admin: stack sidebar above content */
    .admin-wrap { flex-direction: column; }
    .admin-sidebar { width: 100%; padding: 10px 0; display: flex; overflow-x: auto; white-space: nowrap; }
    .admin-sidebar a { padding: 10px 16px; display: inline-block; }
    .admin-content { padding: 16px; }
    .admin-topbar { flex-direction: column; align-items: flex-start; }
}