/* ===================================
   Ahjin Jewellers - Main Stylesheet
   Mobile-First Responsive Design
   =================================== */

:root {
  --primary: #d4af37;
  --secondary: #1c1b1a;
  --surface: #fbf9f9;
  --surface-dim: #dbdad9;
  --surface-container: #efeded;
  --on-surface: #1c1b1a;
  --on-surface-variant: #484746;
  --outline: #797776;
  --outline-variant: #cac6c5;
  --font-serif: 'EB Garamond', serif;
  --font-sans: 'Inter', sans-serif;
  --radius: 6px;
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); color: var(--on-surface); background: var(--surface); animation: fadeIn 0.35s ease; -webkit-font-smoothing: antialiased; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-serif); }

/* ===== TOP BAR ===== */
.topbar { background: var(--secondary); color: var(--surface); font-size: 11px; padding: 6px 16px; }
.topbar-inner { max-width: 1280px; margin: auto; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.topbar-left, .topbar-center, .topbar-right { display: flex; align-items: center; gap: 6px; }
.topbar-center { display: none; }
.topbar-right a { color: var(--surface); opacity: 0.85; transition: opacity var(--transition); }
.topbar-right a:hover { opacity: 1; color: var(--primary); }
@media (min-width: 640px) { .topbar-center { display: flex; } }

/* ===== HEADER ===== */
.main-header { background: var(--surface); border-bottom: 1px solid var(--outline-variant); position: sticky; top: 0; z-index: 100; }
.header-inner { max-width: 1280px; margin: auto; padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.logo-img { height: 48px; width: auto; object-fit: contain; }

/* Desktop Nav */
.desktop-nav { display: none; gap: 28px; font-size: 13px; font-weight: 500; letter-spacing: 0.05em; }
.desktop-nav a { transition: color var(--transition); }
.desktop-nav a:hover { color: var(--primary); }
@media (min-width: 1024px) { .desktop-nav { display: flex; } }

/* Header Actions */
.header-actions { display: flex; align-items: center; gap: 14px; }
.icon-btn { background: none; border: none; cursor: pointer; font-size: 18px; position: relative; color: var(--on-surface); transition: color var(--transition); padding: 4px; }
.icon-btn:hover { color: var(--primary); }
.hidden-xs { display: none; }
@media (min-width: 480px) { .hidden-xs { display: inline-flex; } }
.badge { position: absolute; top: -6px; right: -6px; background: var(--primary); color: var(--secondary); font-size: 9px; font-weight: 700; border-radius: 50%; width: 16px; height: 16px; display: flex; align-items: center; justify-content: center; }

/* Hamburger */
.hamburger { background: none; border: none; cursor: pointer; display: flex; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--on-surface); transition: var(--transition); border-radius: 2px; }
@media (min-width: 1024px) { .hamburger { display: none; } }

/* Search Bar */
.search-bar { display: none; padding: 10px 16px; border-top: 1px solid var(--outline-variant); }
.search-bar.open { display: block; }
.search-inner { max-width: 600px; margin: auto; display: flex; gap: 8px; }
.search-inner input { flex: 1; border: 1px solid var(--outline-variant); border-radius: var(--radius); padding: 8px 14px; font-family: var(--font-sans); font-size: 14px; outline: none; }
.search-inner input:focus { border-color: var(--primary); }
.search-inner button { background: none; border: none; cursor: pointer; font-size: 18px; color: var(--on-surface-variant); }

/* ===== MOBILE DRAWER ===== */
.mobile-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 200; }
.mobile-overlay.open { display: block; }
.mobile-drawer { position: fixed; top: 0; left: -100%; width: min(80vw, 320px); height: 100vh; background: var(--secondary); z-index: 201; transition: left 0.3s ease; overflow-y: auto; }
.mobile-drawer.open { left: 0; }
.drawer-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 20px 16px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.drawer-header button { background: none; border: none; color: var(--surface); font-size: 22px; cursor: pointer; }
.drawer-links { list-style: none; padding: 12px 0; }
.drawer-links li a { display: flex; align-items: center; gap: 10px; padding: 14px 24px; color: var(--surface); font-size: 14px; letter-spacing: 0.05em; transition: background var(--transition); }
.drawer-links li a:hover { background: rgba(255,255,255,0.05); color: var(--primary); }
.drawer-links li a i { width: 16px; opacity: 0.7; }
.drawer-divider { height: 1px; background: rgba(255,255,255,0.1); margin: 8px 24px; }

/* ===== HERO SECTION ===== */
.hero { position: relative; min-height: 65vh; display: flex; align-items: center; overflow: hidden; background: var(--surface-dim); }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(28,27,26,0.8) 0%, rgba(28,27,26,0.4) 60%, rgba(28,27,26,0.1) 100%); }
.hero-content { position: relative; z-index: 2; padding: 40px 20px; max-width: 600px; }
.hero h1 { font-size: clamp(2.2rem, 8vw, 5rem); color: var(--surface); line-height: 1.1; margin-bottom: 16px; }
.hero p { color: rgba(251,249,249,0.85); font-size: clamp(14px, 3vw, 18px); margin-bottom: 28px; line-height: 1.6; }
.hero-btns { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-primary { background: var(--primary); color: var(--secondary); padding: 12px 24px; border-radius: var(--radius); font-size: 13px; font-weight: 600; letter-spacing: 0.08em; transition: opacity var(--transition); border: none; cursor: pointer; }
.btn-primary:hover { opacity: 0.88; }
.btn-outline-light { border: 1.5px solid rgba(251,249,249,0.7); color: var(--surface); padding: 12px 24px; border-radius: var(--radius); font-size: 13px; font-weight: 600; letter-spacing: 0.08em; transition: background var(--transition); }
.btn-outline-light:hover { background: rgba(251,249,249,0.1); }
@media (min-width: 768px) { .hero { min-height: 80vh; } .hero-content { padding: 60px 48px; } }

/* ===== SECTION COMMON ===== */
.section { padding: 48px 16px; }
.section-title { font-size: clamp(1.6rem, 5vw, 2.2rem); text-align: center; margin-bottom: 32px; letter-spacing: 0.05em; }
.container { max-width: 1280px; margin: auto; }
@media (min-width: 768px) { .section { padding: 64px 24px; } }

/* ===== CATEGORY STRIP ===== */
.cat-strip { background: var(--surface); padding: 40px 16px; }
.cat-scroll { display: flex; overflow-x: auto; gap: 16px; padding-bottom: 8px; scrollbar-width: none; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; }
.cat-scroll::-webkit-scrollbar { display: none; }
.cat-item { flex-shrink: 0; display: flex; flex-direction: column; align-items: center; gap: 8px; scroll-snap-align: start; width: 110px; text-decoration: none; }
.cat-thumb { width: 110px; height: 130px; border-radius: var(--radius); overflow: hidden; background: var(--surface-container); }
.cat-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.cat-item:hover .cat-thumb img { transform: scale(1.05); }
.cat-label { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; text-align: center; background: var(--surface-container); width: 100%; padding: 6px 4px; border-radius: 4px; }
@media (min-width: 640px) { .cat-item { width: 130px; } .cat-thumb { width: 130px; height: 155px; } }

/* ===== PRODUCT GRID ===== */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (min-width: 640px) { .product-grid { gap: 20px; } }
@media (min-width: 900px) { .product-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1024px) { .product-grid { gap: 24px; } }

/* ===== PRODUCT CARD ===== */
.product-card { display: flex; flex-direction: column; }
.product-card-img { position: relative; aspect-ratio: 4/5; overflow: hidden; background: var(--surface-container); border-radius: var(--radius); margin-bottom: 12px; }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.product-card:hover .product-card-img img { transform: scale(1.05); }
.badge-new { position: absolute; top: 8px; left: 8px; background: var(--secondary); color: var(--surface); font-size: 9px; font-weight: 700; padding: 3px 7px; border-radius: 3px; letter-spacing: 0.08em; }
.badge-discount { position: absolute; top: 28px; left: 8px; background: #ef4444; color: #fff; font-size: 9px; font-weight: 700; padding: 3px 7px; border-radius: 3px; }
.wishlist-btn { position: absolute; top: 8px; right: 8px; background: rgba(251,249,249,0.85); border: none; border-radius: 50%; width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: color var(--transition); font-size: 14px; }
.wishlist-btn:hover { color: var(--primary); }
.product-card-body { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.stars { display: flex; gap: 2px; font-size: 10px; color: var(--primary); }
.product-name { font-family: var(--font-serif); font-size: 1rem; color: var(--secondary); line-height: 1.3; }
.product-prices { display: flex; align-items: center; gap: 8px; }
.price { font-weight: 700; font-size: 14px; }
.price-original { font-size: 11px; color: var(--on-surface-variant); text-decoration: line-through; }
.add-to-cart { margin-top: 8px; width: 100%; background: var(--primary); color: var(--secondary); border: none; padding: 9px 12px; border-radius: var(--radius); font-size: 11px; font-weight: 700; letter-spacing: 0.07em; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 6px; transition: opacity var(--transition); }
.add-to-cart:hover { opacity: 0.88; }

/* ===== PROMO BANNERS ===== */
.promo-grid { display: grid; gap: 16px; }
@media (min-width: 768px) { .promo-grid { grid-template-columns: 1fr 1fr; } }
.promo-card { position: relative; min-height: 260px; border-radius: var(--radius); overflow: hidden; display: flex; align-items: center; }
.promo-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.promo-overlay { position: absolute; inset: 0; background: rgba(28,27,26,0.45); }
.promo-content { position: relative; z-index: 1; padding: 28px; color: var(--surface); }
.promo-content h2 { font-family: var(--font-serif); font-size: 1.8rem; margin-bottom: 8px; }
.promo-content p { font-size: 13px; margin-bottom: 20px; opacity: 0.9; }
@media (min-width: 768px) { .promo-card { min-height: 380px; } }

/* ===== TRUST SECTION ===== */
.trust-section { border-top: 1px solid var(--outline-variant); border-bottom: 1px solid var(--outline-variant); padding: 32px 16px; }
.trust-inner { max-width: 1280px; margin: auto; display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
@media (min-width: 768px) { .trust-inner { grid-template-columns: repeat(4, 1fr); } }
.trust-item { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; }
.trust-item i { font-size: 22px; color: var(--on-surface-variant); }
.trust-item h4 { font-family: var(--font-sans); font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.trust-item p { font-size: 10px; color: var(--on-surface-variant); }

/* ===== FOOTER ===== */
.site-footer { background: var(--secondary); color: var(--surface); padding: 48px 16px 24px; }
.footer-inner { max-width: 1280px; margin: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 32px 20px; }
@media (min-width: 768px) { .footer-inner { grid-template-columns: 2fr 1fr 1fr 1fr 2fr; gap: 24px; } }
.footer-brand { grid-column: 1 / -1; }
@media (min-width: 768px) { .footer-brand { grid-column: auto; } }
.footer-brand p { font-size: 13px; color: var(--surface-dim); margin: 12px 0; line-height: 1.6; max-width: 220px; }
.social-links { display: flex; gap: 14px; font-size: 16px; }
.social-links a:hover { color: var(--primary); }
.footer-col h4 { font-family: var(--font-sans); font-size: 11px; font-weight: 700; letter-spacing: 0.1em; margin-bottom: 12px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a { font-size: 13px; color: var(--surface-dim); transition: color var(--transition); }
.footer-col ul a:hover { color: var(--primary); }
.footer-newsletter p { font-size: 13px; color: var(--surface-dim); margin-bottom: 12px; }
.newsletter-form { display: flex; border-radius: var(--radius); overflow: hidden; }
.newsletter-form input { flex: 1; padding: 9px 12px; font-size: 13px; border: none; outline: none; min-width: 0; }
.newsletter-form button { background: var(--primary); border: none; color: var(--secondary); padding: 9px 14px; cursor: pointer; font-size: 14px; }
.payment-methods { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.payment-methods span { background: var(--surface); color: var(--secondary); border-radius: 4px; width: 40px; height: 26px; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.payment-methods .text-badge { font-size: 10px; font-weight: 700; }
.footer-bottom { max-width: 1280px; margin: 32px auto 0; padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.12); display: flex; flex-direction: column; gap: 6px; font-size: 11px; color: var(--surface-dim); }
@media (min-width: 640px) { .footer-bottom { flex-direction: row; justify-content: space-between; } }

/* ===== SHOP PAGE ===== */
.shop-layout { display: flex; gap: 32px; max-width: 1280px; margin: auto; padding: 32px 16px; }
.shop-sidebar { display: none; width: 220px; flex-shrink: 0; }
.shop-sidebar.open { display: block; }
@media (min-width: 900px) { .shop-sidebar { display: block; } }
.shop-main { flex: 1; min-width: 0; }
.shop-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.shop-header h1 { font-size: clamp(1.8rem, 5vw, 3rem); }
.sort-select { border: none; border-bottom: 1px solid var(--outline-variant); padding: 6px 28px 6px 4px; font-family: var(--font-sans); font-size: 13px; background: var(--surface); cursor: pointer; outline: none; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23484746' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 4px center; }
.filter-btn { display: flex; align-items: center; gap: 6px; background: var(--surface-container); border: none; padding: 8px 14px; border-radius: var(--radius); font-size: 13px; cursor: pointer; }
@media (min-width: 900px) { .filter-btn { display: none; } }
.filter-group { margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--surface-dim); }
.filter-group h3 { font-family: var(--font-sans); font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 12px; }
.filter-item { display: flex; align-items: center; gap: 8px; padding: 5px 0; font-size: 14px; color: var(--on-surface-variant); cursor: pointer; }
.filter-item:hover { color: var(--primary); }
.filter-item input { accent-color: var(--primary); }
.shop-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (min-width: 640px) { .shop-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1100px) { .shop-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

/* ===== PRODUCT DETAIL PAGE ===== */
.product-detail { max-width: 1280px; margin: auto; padding: 32px 16px; display: grid; gap: 32px; }
@media (min-width: 768px) { .product-detail { grid-template-columns: 1fr 1fr; align-items: start; } }
.product-gallery img { width: 100%; border-radius: var(--radius); aspect-ratio: 4/5; object-fit: cover; }
.product-info { display: flex; flex-direction: column; gap: 16px; }
.product-info h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1.2; }
.product-info .price-big { font-size: 1.5rem; font-weight: 700; }
.size-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.size-btn { padding: 8px 16px; border: 1px solid var(--outline-variant); border-radius: var(--radius); background: none; cursor: pointer; font-size: 13px; transition: var(--transition); }
.size-btn.active, .size-btn:hover { border-color: var(--primary); color: var(--primary); }
.qty-row { display: flex; align-items: center; gap: 12px; }
.qty-ctrl { display: flex; align-items: center; border: 1px solid var(--outline-variant); border-radius: var(--radius); overflow: hidden; }
.qty-ctrl button { background: none; border: none; width: 36px; height: 36px; font-size: 16px; cursor: pointer; transition: background var(--transition); }
.qty-ctrl button:hover { background: var(--surface-container); }
.qty-ctrl input { width: 44px; text-align: center; border: none; border-left: 1px solid var(--outline-variant); border-right: 1px solid var(--outline-variant); height: 36px; font-size: 14px; outline: none; }
.add-to-bag { background: var(--secondary); color: var(--surface); border: none; padding: 14px 32px; border-radius: var(--radius); font-size: 13px; font-weight: 600; letter-spacing: 0.08em; cursor: pointer; display: flex; align-items: center; gap: 8px; transition: background var(--transition); width: 100%; justify-content: center; }
.add-to-bag:hover { background: var(--primary); color: var(--secondary); }

/* ===== CART PAGE ===== */
.cart-layout { max-width: 1100px; margin: auto; padding: 32px 16px; display: flex; flex-direction: column; gap: 24px; }
@media (min-width: 900px) { .cart-layout { flex-direction: row; align-items: flex-start; gap: 32px; } }
.cart-items { flex: 1; display: flex; flex-direction: column; gap: 16px; }
.cart-item { display: flex; gap: 16px; padding: 16px; background: var(--surface-container); border-radius: var(--radius); }
.cart-item img { width: 90px; height: 110px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
@media (min-width: 480px) { .cart-item img { width: 120px; height: 145px; } }
.cart-item-info { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.cart-item-name { font-family: var(--font-serif); font-size: 1.1rem; }
.cart-item-meta { font-size: 12px; color: var(--on-surface-variant); }
.cart-item-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: auto; }
.cart-summary { background: #f9f6f0; border-radius: var(--radius); padding: 24px; width: 100%; }
@media (min-width: 900px) { .cart-summary { width: 320px; flex-shrink: 0; position: sticky; top: 90px; } }
.summary-row { display: flex; justify-content: space-between; font-size: 14px; padding: 6px 0; }
.summary-total { display: flex; justify-content: space-between; font-size: 16px; font-weight: 700; padding: 12px 0; border-top: 1px solid var(--outline-variant); margin-top: 8px; }
.checkout-btn { width: 100%; background: var(--primary); color: var(--secondary); border: none; padding: 14px; border-radius: var(--radius); font-size: 13px; font-weight: 700; letter-spacing: 0.1em; cursor: pointer; margin-top: 16px; text-transform: uppercase; transition: opacity var(--transition); }
.checkout-btn:hover { opacity: 0.88; }

/* ===== CHECKOUT PAGE ===== */
.checkout-layout { max-width: 900px; margin: auto; padding: 32px 16px; }
.checkout-layout h1 { font-size: clamp(1.8rem, 5vw, 3rem); margin-bottom: 24px; }
.form-grid { display: grid; gap: 16px; }
@media (min-width: 640px) { .form-grid { grid-template-columns: 1fr 1fr; } }
.form-full { grid-column: 1 / -1; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--on-surface-variant); }
.form-group input, .form-group select, .form-group textarea { border: 1px solid var(--outline-variant); border-radius: var(--radius); padding: 10px 14px; font-family: var(--font-sans); font-size: 14px; outline: none; transition: border-color var(--transition); background: var(--surface); }
.form-group input:focus, .form-group select:focus { border-color: var(--primary); }
.submit-order { margin-top: 24px; background: var(--secondary); color: var(--surface); border: none; padding: 14px 32px; border-radius: var(--radius); font-size: 14px; font-weight: 600; letter-spacing: 0.08em; cursor: pointer; width: 100%; transition: background var(--transition); }
.submit-order:hover { background: var(--primary); color: var(--secondary); }

/* ===== SUCCESS PAGE ===== */
.success-page { max-width: 600px; margin: 60px auto; padding: 32px 16px; text-align: center; }
.success-icon { font-size: 64px; color: #22c55e; margin-bottom: 16px; }
.success-page h1 { font-size: 2.2rem; margin-bottom: 12px; }
.success-page p { color: var(--on-surface-variant); margin-bottom: 24px; }

/* ===== UTILITY ===== */
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.text-center { text-align: center; }
.divider { border: none; border-top: 1px solid var(--outline-variant); margin: 0; }

/* ===== STICKY ADD-TO-BAG BAR (mobile product page) ===== */
.sticky-add-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: var(--surface); border-top: 1px solid var(--outline-variant); z-index: 150; padding: 12px 16px; transform: translateY(100%); transition: transform 0.3s ease; box-shadow: 0 -4px 20px rgba(0,0,0,0.1); }
.sticky-add-bar.visible { transform: translateY(0); }
.sticky-add-inner { max-width: 600px; margin: auto; display: flex; align-items: center; gap: 12px; justify-content: space-between; }
.sticky-product-info { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.sticky-name { font-family: var(--font-serif); font-size: 1rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sticky-price { font-weight: 700; font-size: 14px; color: var(--primary); }
.sticky-btn { flex-shrink: 0; width: auto; padding: 12px 20px; font-size: 12px; }
@media (max-width: 767px) { .sticky-add-bar { display: block; } }