*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --primary: #2563eb; --primary-dark: #1d4ed8; --primary-light: #dbeafe;
    --accent: #f59e0b; --accent-dark: #d97706;
    --dark: #0f172a; --gray-900: #1e293b; --gray-700: #334155; --gray-500: #64748b;
    --gray-300: #cbd5e1; --gray-100: #f1f5f9; --gray-50: #f8fafc; --white: #ffffff;
    --success: #16a34a; --danger: #dc2626;
    --radius: 12px; --radius-sm: 8px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08); --shadow: 0 4px 16px rgba(0,0,0,0.1); --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --transition: 0.25s ease;
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; color: var(--gray-900); background: var(--white); line-height: 1.6; font-size: 15px; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.topbar { background: var(--dark); color: #94a3b8; font-size: 13px; padding: 8px 0; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; }
.topbar-links a { margin-left: 20px; color: #94a3b8; transition: var(--transition); }
.topbar-links a:hover { color: var(--white); }
.header { background: var(--white); border-bottom: 1px solid var(--gray-100); position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow-sm); }
.header-inner { display: flex; align-items: center; gap: 32px; padding: 16px 24px; }
.logo { font-size: 24px; font-weight: 800; color: var(--dark); display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.logo-icon { color: var(--primary); }
.logo-accent { color: var(--primary); }
.search-bar { flex: 1; display: flex; max-width: 600px; }
.search-bar input { flex: 1; padding: 12px 18px; border: 2px solid var(--gray-300); border-right: none; border-radius: var(--radius-sm) 0 0 var(--radius-sm); font-size: 14px; outline: none; transition: var(--transition); }
.search-bar input:focus { border-color: var(--primary); }
.search-btn { background: var(--primary); color: var(--white); border: none; padding: 0 28px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-weight: 600; cursor: pointer; transition: var(--transition); }
.search-btn:hover { background: var(--primary-dark); }
.header-actions { display: flex; gap: 20px; }
.header-action { font-size: 22px; position: relative; cursor: pointer; transition: var(--transition); }
.header-action:hover { transform: scale(1.1); }
.badge { position: absolute; top: -6px; right: -8px; background: var(--accent); color: var(--white); font-size: 11px; font-weight: 700; min-width: 18px; height: 18px; border-radius: 9px; display: flex; align-items: center; justify-content: center; padding: 0 4px; }
.nav { background: var(--gray-50); border-bottom: 1px solid var(--gray-100); }
.nav-inner { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-link { padding: 14px 18px; font-size: 14px; font-weight: 500; color: var(--gray-700); border-bottom: 3px solid transparent; transition: var(--transition); }
.nav-link:hover { color: var(--primary); background: var(--white); }
.nav-link.active { color: var(--primary); border-bottom-color: var(--primary); background: var(--white); }
.hero { background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%); padding: 64px 0; overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero-badge { display: inline-block; background: var(--accent); color: var(--white); padding: 6px 16px; border-radius: 20px; font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.hero h1 { font-size: 52px; font-weight: 800; line-height: 1.1; color: var(--dark); margin-bottom: 20px; }
.grad-text { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { font-size: 17px; color: var(--gray-700); margin-bottom: 32px; max-width: 520px; }
.hero-cta { display: flex; gap: 16px; margin-bottom: 40px; }
.btn { padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; cursor: pointer; transition: var(--transition); border: none; display: inline-flex; align-items: center; gap: 8px; }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { background: transparent; color: var(--dark); border: 2px solid var(--gray-300); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.hero-stats { display: flex; gap: 40px; }
.hero-stat { display: flex; flex-direction: column; }
.hero-stat strong { font-size: 32px; font-weight: 800; color: var(--primary); }
.hero-stat span { font-size: 13px; color: var(--gray-500); }
.hero-visual { position: relative; height: 420px; }
.hero-card { position: absolute; background: var(--white); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 14px; transition: var(--transition); animation: float 4s ease-in-out infinite; }
.hero-card:hover { transform: scale(1.05); }
.hero-card strong { font-size: 16px; display: block; }
.hero-card p { font-size: 13px; color: var(--gray-500); margin: 0; }
.hc-icon { font-size: 36px; }
.hero-card-1 { top: 0; left: 0; animation-delay: 0s; }
.hero-card-2 { top: 40px; right: 0; animation-delay: 1s; }
.hero-card-3 { bottom: 80px; left: 30px; animation-delay: 2s; }
.hero-card-4 { bottom: 0; right: 20px; animation-delay: 0.5s; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.section { padding: 64px 0; }
.section-alt { background: var(--gray-50); }
.section-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 36px; }
.section-head h2 { font-size: 30px; font-weight: 700; color: var(--dark); }
.section-link { color: var(--primary); font-weight: 600; font-size: 14px; }
.section-link:hover { text-decoration: underline; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cat-card { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 32px; text-align: center; transition: var(--transition); cursor: pointer; }
.cat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); border-color: var(--primary-light); }
.cat-icon { font-size: 48px; margin-bottom: 16px; }
.cat-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.cat-card p { color: var(--gray-500); font-size: 14px; margin-bottom: 12px; }
.cat-count { font-size: 13px; color: var(--primary); font-weight: 600; }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius); overflow: hidden; transition: var(--transition); cursor: pointer; position: relative; }
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.product-img { height: 200px; display: flex; align-items: center; justify-content: center; font-size: 72px; background: var(--gray-50); }
.product-badge { position: absolute; top: 12px; left: 12px; background: var(--danger); color: var(--white); font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 4px; z-index: 2; }
.product-badge.new { background: var(--success); }
.product-badge.deal { background: var(--accent); }
.product-wish { position: absolute; top: 12px; right: 12px; background: var(--white); width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; box-shadow: var(--shadow-sm); cursor: pointer; z-index: 2; transition: var(--transition); }
.product-wish:hover { background: var(--accent); color: var(--white); }
.product-info { padding: 16px; }
.product-cat { font-size: 12px; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.product-name { font-size: 15px; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.product-rating { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; }
.stars { color: var(--accent); font-size: 14px; }
.rating-text { font-size: 12px; color: var(--gray-500); }
.product-price { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.price-now { font-size: 20px; font-weight: 800; color: var(--dark); }
.price-old { font-size: 14px; color: var(--gray-500); text-decoration: line-through; }
.product-actions { display: flex; gap: 8px; }
.btn-add { flex: 1; background: var(--primary); color: var(--white); border: none; padding: 10px; border-radius: var(--radius-sm); font-weight: 600; cursor: pointer; font-size: 13px; transition: var(--transition); }
.btn-add:hover { background: var(--primary-dark); }
.btn-quick { background: var(--gray-100); color: var(--gray-700); border: none; padding: 10px 14px; border-radius: var(--radius-sm); cursor: pointer; font-size: 14px; transition: var(--transition); }
.btn-quick:hover { background: var(--gray-300); }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card { text-align: center; padding: 32px 24px; }
.feature-icon { font-size: 48px; margin-bottom: 16px; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--gray-500); font-size: 14px; }
.supplier-strip { display: flex; flex-wrap: wrap; gap: 32px; justify-content: center; align-items: center; }
.supplier-logo { font-size: 22px; font-weight: 700; color: var(--gray-500); padding: 16px 32px; border: 2px solid var(--gray-100); border-radius: var(--radius); transition: var(--transition); cursor: pointer; }
.supplier-logo:hover { color: var(--primary); border-color: var(--primary); }
.newsletter { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); padding: 64px 0; text-align: center; color: var(--white); }
.newsletter h2 { font-size: 30px; font-weight: 700; margin-bottom: 12px; }
.newsletter p { font-size: 16px; opacity: 0.9; margin-bottom: 28px; }
.newsletter-form { display: flex; max-width: 500px; margin: 0 auto; gap: 12px; }
.newsletter-form input { flex: 1; padding: 14px 20px; border: none; border-radius: var(--radius-sm); font-size: 15px; outline: none; }
.newsletter-form .btn-primary { background: var(--accent); }
.newsletter-form .btn-primary:hover { background: var(--accent-dark); }
.newsletter-note { margin-top: 16px; font-size: 14px; font-weight: 600; }
.footer { background: var(--dark); color: #94a3b8; padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-logo { font-size: 22px; font-weight: 800; color: var(--white); margin-bottom: 16px; }
.footer-col h4 { color: var(--white); font-size: 16px; margin-bottom: 16px; }
.footer-col a, .footer-col p { display: block; color: #94a3b8; font-size: 14px; margin-bottom: 10px; transition: var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid #1e293b; padding: 20px 0; }
.footer-bottom p { font-size: 13px; }
.footer-bottom a { color: var(--gray-300); }
.footer-bottom a:hover { color: var(--white); }
.page-banner { background: linear-gradient(135deg, var(--dark), var(--gray-900)); color: var(--white); padding: 48px 0; text-align: center; }
.page-banner h1 { font-size: 36px; font-weight: 800; margin-bottom: 10px; }
.page-banner p { font-size: 16px; opacity: 0.8; }
.breadcrumb { font-size: 13px; margin-bottom: 16px; opacity: 0.7; }
.breadcrumb a { color: var(--primary-light); }
.shop-layout { display: grid; grid-template-columns: 240px 1fr; gap: 32px; padding: 40px 0; }
.shop-sidebar { position: sticky; top: 140px; align-self: start; }
.filter-group { margin-bottom: 28px; }
.filter-group h4 { font-size: 14px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 14px; color: var(--dark); }
.filter-item { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; font-size: 14px; color: var(--gray-700); cursor: pointer; }
.filter-item input { accent-color: var(--primary); }
.filter-item:hover { color: var(--primary); }
.filter-item .count { margin-left: auto; color: var(--gray-500); font-size: 12px; }
.price-range { display: flex; gap: 8px; align-items: center; }
.price-range input { width: 80px; padding: 8px; border: 1px solid var(--gray-300); border-radius: var(--radius-sm); font-size: 13px; }
.shop-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.shop-toolbar select { padding: 10px 16px; border: 1px solid var(--gray-300); border-radius: var(--radius-sm); font-size: 14px; }
.result-count { font-size: 14px; color: var(--gray-500); }
.supplier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.supplier-card { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 28px; transition: var(--transition); }
.supplier-card:hover { box-shadow: var(--shadow); }
.supplier-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.supplier-card .supplier-loc { font-size: 13px; color: var(--gray-500); margin-bottom: 12px; }
.supplier-card p { font-size: 14px; color: var(--gray-700); margin-bottom: 16px; }
.supplier-meta { display: flex; gap: 20px; font-size: 13px; }
.supplier-meta span { display: flex; align-items: center; gap: 4px; }
.verified-badge { display: inline-flex; align-items: center; gap: 4px; background: #ecfdf5; color: var(--success); padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.about-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 48px 0; }
.about-hero h2 { font-size: 36px; font-weight: 800; margin-bottom: 20px; }
.about-hero p { font-size: 16px; color: var(--gray-700); margin-bottom: 16px; }
.about-visual { background: linear-gradient(135deg, var(--primary-light), #e0f2fe); border-radius: var(--radius); height: 360px; display: flex; align-items: center; justify-content: center; font-size: 120px; }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.value-card { text-align: center; padding: 32px; }
.value-card .v-icon { font-size: 40px; margin-bottom: 12px; }
.value-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.value-card p { font-size: 14px; color: var(--gray-500); }
.cart-layout { display: grid; grid-template-columns: 1fr 360px; gap: 32px; align-items: start; padding: 40px 0; }
.cart-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
.cart-table th { text-align: left; padding: 16px; background: var(--gray-50); font-size: 13px; text-transform: uppercase; color: var(--gray-500); }
.cart-table td { padding: 16px; border-bottom: 1px solid var(--gray-100); }
.cart-item-info { display: flex; align-items: center; gap: 16px; }
.cart-item-emoji { font-size: 40px; }
.cart-item-name { font-weight: 600; }
.cart-item-cat { font-size: 12px; color: var(--gray-500); }
.qty-control { display: flex; align-items: center; gap: 8px; }
.qty-btn { width: 32px; height: 32px; border: 1px solid var(--gray-300); background: var(--white); border-radius: var(--radius-sm); cursor: pointer; font-size: 16px; }
.qty-btn:hover { background: var(--gray-100); }
.qty-val { min-width: 32px; text-align: center; font-weight: 600; }
.cart-summary { background: var(--gray-50); border-radius: var(--radius); padding: 28px; }
.cart-summary h3 { font-size: 20px; font-weight: 700; margin-bottom: 20px; }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 12px; font-size: 15px; }
.summary-total { font-size: 20px; font-weight: 800; border-top: 2px solid var(--gray-300); padding-top: 16px; margin-top: 16px; }
.empty-state { text-align: center; padding: 80px 0; }
.empty-state .es-icon { font-size: 80px; margin-bottom: 20px; }
.empty-state h2 { font-size: 24px; margin-bottom: 12px; }
.empty-state p { color: var(--gray-500); margin-bottom: 24px; }
.auth-wrap { max-width: 440px; margin: 60px auto; padding: 0 24px; }
.auth-card { background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow); }
.auth-card h1 { font-size: 28px; font-weight: 800; margin-bottom: 8px; }
.auth-card .sub { color: var(--gray-500); margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.form-group input { width: 100%; padding: 12px 16px; border: 2px solid var(--gray-300); border-radius: var(--radius-sm); font-size: 15px; transition: var(--transition); outline: none; }
.form-group input:focus { border-color: var(--primary); }
.btn-full { width: 100%; justify-content: center; }
.auth-alt { text-align: center; margin-top: 24px; font-size: 14px; color: var(--gray-500); }
.auth-alt a { color: var(--primary); font-weight: 600; }
.divider { text-align: center; margin: 24px 0; color: var(--gray-500); font-size: 13px; position: relative; }
.divider::before, .divider::after { content: ''; position: absolute; top: 50%; width: 40%; height: 1px; background: var(--gray-300); }
.divider::before { left: 0; }
.divider::after { right: 0; }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--gray-100); border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden; }
.faq-q { padding: 18px 24px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; background: var(--white); transition: var(--transition); }
.faq-q:hover { background: var(--gray-50); }
.faq-q .arrow { transition: var(--transition); }
.faq-item.open .faq-q .arrow { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; padding: 0 24px; }
.faq-item.open .faq-a { max-height: 300px; padding: 0 24px 18px; color: var(--gray-700); font-size: 14px; }
.track-box { max-width: 560px; margin: 48px auto; background: var(--white); border: 1px solid var(--gray-100); border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow); text-align: center; }
.track-steps { display: flex; justify-content: space-between; margin: 32px 0; position: relative; }
.track-steps::before { content: ''; position: absolute; top: 24px; left: 10%; right: 10%; height: 3px; background: var(--gray-100); }
.track-step { position: relative; z-index: 1; text-align: center; }
.track-step .ts-dot { width: 48px; height: 48px; border-radius: 50%; background: var(--gray-100); display: flex; align-items: center; justify-content: center; font-size: 22px; margin: 0 auto 8px; transition: var(--transition); }
.track-step.active .ts-dot { background: var(--success); }
.track-step span { font-size: 12px; color: var(--gray-500); }
.track-step.active span { color: var(--dark); font-weight: 600; }
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); }
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .shop-layout { grid-template-columns: 1fr; }
    .shop-sidebar { position: static; }
    .supplier-grid { grid-template-columns: repeat(2, 1fr); }
    .cart-layout { grid-template-columns: 1fr; }
    .about-hero { grid-template-columns: 1fr; }
    .value-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .hero h1 { font-size: 36px; }
    .cat-grid, .product-grid, .feature-grid, .supplier-grid { grid-template-columns: 1fr; }
    .header-inner { flex-wrap: wrap; }
    .search-bar { order: 3; width: 100%; max-width: 100%; }
    .hero-stats { flex-wrap: wrap; gap: 20px; }
    .newsletter-form { flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; }
    .nav-inner { overflow-x: auto; flex-wrap: nowrap; }
    .nav-link { white-space: nowrap; }
    .topbar-links { display: none; }
}