:root{--primary-color:#ff6b00;--primary-hover:#e65c00;--secondary-color:#1a1a1a;--light-bg:#f8f9fa;--dark-text:#333;--light-text:#666;--card-bg:#fff;--border-color:#e9ecef;--shadow:0 2px 10px #00000014}.dark-mode{--secondary-color:#ff6b00;--light-bg:#1a1a1a;--dark-text:#f8f9fa;--light-text:#ccc;--card-bg:#2a2a2a;--border-color:#444;--shadow:0 2px 10px #0000004d}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--light-bg);color:var(--dark-text);min-height:100vh;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--primary-color), #ff8c00);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-outline{border:2px solid var(--primary-color);color:var(--primary-color);background:0 0}.btn-outline:hover{background:var(--primary-color);color:#fff}.form-group{margin-bottom:16px}.form-group label{margin-bottom:6px;font-size:14px;font-weight:600;display:block}.form-input{border:1px solid var(--border-color);background:var(--card-bg);width:100%;color:var(--dark-text);border-radius:8px;padding:12px 14px}.form-input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #ff6b0026}.alert{border-radius:8px;margin-bottom:16px;padding:12px 16px}.alert-error{color:#c33;background:#fee;border:1px solid #fcc}.alert-success{color:#363;background:#efe;border:1px solid #cfc}.page-title{color:var(--dark-text);margin-bottom:24px;font-size:28px;font-weight:800}.loading{text-align:center;color:var(--light-text);padding:48px}.empty-state{text-align:center;color:var(--light-text);padding:48px 24px}.navbar{background:var(--card-bg);box-shadow:var(--shadow);z-index:100;position:sticky;top:0}.navbar-inner{flex-wrap:wrap;align-items:center;gap:16px;padding:12px 16px;display:flex}.navbar-brand{flex-shrink:0;align-items:center;gap:10px;font-size:24px;font-weight:800;display:flex;color:var(--primary-color)!important}.brand-icon{font-size:28px}.search-form{flex:1;min-width:200px;max-width:480px;display:flex}.search-input{border:1px solid var(--border-color);background:var(--light-bg);color:var(--dark-text);border-right:none;border-radius:8px 0 0 8px;flex:1;padding:10px 14px}.search-btn{border:1px solid var(--border-color);background:var(--primary-color);color:#fff;cursor:pointer;border-left:none;border-radius:0 8px 8px 0;padding:10px 14px}.nav-links{align-items:center;gap:16px;display:flex}.nav-links a,.nav-link-btn{color:var(--dark-text);white-space:nowrap;font-weight:600}.nav-link-btn{cursor:pointer;background:0 0;border:none;padding:0}.nav-links a:hover,.nav-link-btn:hover{color:var(--primary-color)}.nav-cart{position:relative}.badge{background:var(--primary-color);color:#fff;border-radius:9px;justify-content:center;align-items:center;min-width:18px;height:18px;padding:0 4px;font-size:11px;font-weight:700;display:flex;position:absolute;top:-8px;right:-12px}.nav-register{font-size:14px;padding:8px 16px!important}.menu-toggle{cursor:pointer;color:var(--dark-text);background:0 0;border:none;margin-left:auto;font-size:24px;display:none}@media (width<=768px){.menu-toggle{display:block}.nav-links{border-top:1px solid var(--border-color);flex-direction:column;align-items:flex-start;width:100%;padding:12px 0;display:none}.nav-links.open{display:flex}.search-form{order:3;width:100%;max-width:none}}.footer{background:var(--secondary-color);color:#fff;margin-top:48px;padding:40px 0 24px}.footer-inner{gap:24px;display:grid}.footer-brand h3{color:var(--primary-color);margin-bottom:8px;font-size:24px}.footer-brand p{color:#ccc;font-size:14px}.footer-links{flex-wrap:wrap;gap:24px;display:flex}.footer-links a{color:#ccc;font-weight:600}.footer-links a:hover{color:var(--primary-color)}.footer-copy{color:#888;border-top:1px solid #333;padding-top:16px;font-size:13px}.ad-carousel{background:#222;border-radius:20px;width:100%;min-height:320px;position:relative;overflow:hidden}.ad-carousel-empty{background:linear-gradient(135deg,#1a1a1a,#333);align-items:flex-end;display:flex}.ad-slide{opacity:0;transition:opacity .6s;position:absolute;inset:0}.ad-slide.active{opacity:1}.ad-slide img{object-fit:cover;width:100%;height:100%}.ad-slide-overlay{color:#fff;background:linear-gradient(#0000,#000000d9);padding:40px 28px 28px;position:absolute;bottom:0;left:0;right:0}.ad-slide-title{margin-bottom:8px;font-size:clamp(20px,4vw,32px);font-weight:800}.ad-slide-description{color:#ffffffe6;max-width:600px;margin-bottom:16px;font-size:14px}.ad-slide-button{background:linear-gradient(135deg, var(--primary-color), #ff8c00);color:#fff;border-radius:8px;padding:10px 20px;font-weight:700;display:inline-block}.ad-dots{gap:8px;display:flex;position:absolute;bottom:12px;right:20px}.ad-dot{cursor:pointer;background:#fff6;border:none;border-radius:50%;width:10px;height:10px}.ad-dot.active{background:var(--primary-color)}@media (width<=576px){.ad-carousel{min-height:240px}}.product-card{background:var(--card-bg);box-shadow:var(--shadow);border-radius:12px;flex-direction:column;transition:transform .2s,box-shadow 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8px;font-size:11px;font-weight:700;position:absolute;top:8px}.discount-badge{background:#e74c3c;left:8px}.hot-badge{background:var(--primary-color);right:8px}.product-card-body{flex-direction:column;flex:1;gap:6px;padding:14px;display:flex}.product-category{color:var(--primary-color);text-transform:uppercase;letter-spacing:.5px;font-size:11px;font-weight:600}.product-name{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:15px;font-weight:700;line-height:1.3;display:-webkit-box;overflow:hidden}.product-owner{color:var(--light-text);font-size:12px}.product-price-row{align-items:center;gap:8px;margin-top:auto;display:flex}.product-price{color:var(--primary-color);font-size:16px;font-weight:800}.product-original-price{color:var(--light-text);font-size:13px;text-decoration:line-through}.product-add-btn{width:100%;margin-top:8px;padding:8px;font-size:13px}.home-page{padding-bottom:32px}.hero-section{padding:24px 16px}.category-filter{flex-wrap:wrap;gap:10px;padding:8px 16px 24px;display:flex;overflow-x:auto}.category-chip{border:2px solid var(--border-color);background:var(--card-bg);color:var(--dark-text);cursor:pointer;white-space:nowrap;border-radius:20px;padding:8px 18px;font-weight:600;transition:all .2s}.category-chip:hover,.category-chip.active{border-color:var(--primary-color);background:var(--primary-color);color:#fff}.product-section{margin-bottom:40px}.section-title{border-bottom:3px solid var(--primary-color);margin-bottom:20px;padding-bottom:10px;font-size:22px;font-weight:800;display:inline-block}.product-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;display:grid}.toast{background:var(--secondary-color);color:#fff;z-index:200;box-shadow:var(--shadow);border-radius:8px;padding:12px 20px;font-weight:600;animation:.3s slideIn;position:fixed;bottom:24px;right:24px}@keyframes slideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.main-content{min-height:calc(100vh - 200px)}.product-detail-page{padding:32px 16px}.product-detail-grid{grid-template-columns:1fr 1fr;gap:40px;margin-bottom:40px;display:grid}.main-image{aspect-ratio:1;background:var(--light-bg);box-shadow:var(--shadow);border-radius:16px;overflow:hidden}.main-image img,.image-placeholder{object-fit:cover;width:100%;height:100%}.image-placeholder{justify-content:center;align-items:center;font-size:80px;display:flex}.thumb-row{gap:8px;margin-top:12px;display:flex}.thumb{cursor:pointer;background:0 0;border:2px solid #0000;border-radius:8px;width:64px;height:64px;padding:0;overflow:hidden}.thumb.active{border-color:var(--primary-color)}.thumb img{object-fit:cover;width:100%;height:100%}.product-category-tag{color:var(--primary-color);text-transform:uppercase;font-size:13px;font-weight:700}.product-seller{color:var(--light-text);margin-bottom:16px}.product-seller a{color:var(--primary-color);font-weight:600}.price-block{align-items:center;gap:12px;margin-bottom:12px;display:flex}.current-price{color:var(--primary-color);font-size:28px;font-weight:800}.original-price{color:var(--light-text);font-size:18px;text-decoration:line-through}.discount-tag{color:#fff;background:#e74c3c;border-radius:6px;padding:4px 8px;font-size:13px;font-weight:700}.stock-info,.view-count{color:var(--light-text);margin-bottom:4px;font-size:14px}.action-row{flex-wrap:wrap;gap:12px;margin:20px 0;display:flex}.seller-contact{background:var(--card-bg);box-shadow:var(--shadow);border-radius:12px;margin-top:24px;padding:16px}.seller-contact h3{margin-bottom:8px}.product-description{background:var(--card-bg);box-shadow:var(--shadow);border-radius:12px;padding:24px}.product-description h2{margin-bottom:12px;font-size:20px}.product-description p{color:var(--light-text);white-space:pre-wrap}@media (width<=768px){.product-detail-grid{grid-template-columns:1fr;gap:24px}}.cart-page{padding:32px 16px}.cart-layout{grid-template-columns:1fr 320px;align-items:start;gap:32px;display:grid}.cart-item{background:var(--card-bg);box-shadow:var(--shadow);border-radius:12px;grid-template-columns:80px 1fr auto;align-items:center;gap:16px;margin-bottom:12px;padding:16px;display:grid}.cart-item-image{background:var(--light-bg);border-radius:8px;justify-content:center;align-items:center;width:80px;height:80px;font-size:32px;display:flex;overflow:hidden}.cart-item-image img{object-fit:cover;width:100%;height:100%}.cart-item-info h3{margin-bottom:4px;font-size:16px}.cart-item-owner{color:var(--light-text);font-size:13px}.cart-item-price{color:var(--primary-color);margin-top:4px;font-weight:700}.qty-controls{align-items:center;gap:8px;margin-bottom:8px;display:flex}.qty-controls button{border:1px solid var(--border-color);background:var(--light-bg);cursor:pointer;border-radius:6px;width:32px;height:32px;font-size:18px}.line-total{margin-bottom:8px;font-weight:700}.remove-btn{color:#e74c3c;cursor:pointer;background:0 0;border:none;font-size:13px;font-weight:600}.cart-summary{background:var(--card-bg);box-shadow:var(--shadow);border-radius:12px;padding:24px;position:sticky;top:80px}.cart-summary h2{margin-bottom:16px;font-size:18px}.summary-row{color:var(--light-text);justify-content:space-between;margin-bottom:10px;display:flex}.summary-row .free{color:#27ae60;font-weight:600}.summary-total{border-top:1px solid var(--border-color);justify-content:space-between;margin:12px 0 16px;padding-top:12px;font-size:18px;font-weight:800;display:flex}.checkout-note{color:var(--light-text);margin-bottom:16px;font-size:12px;line-height:1.5}.checkout-btn{text-align:center;width:100%}@media (width<=768px){.cart-layout{grid-template-columns:1fr}.cart-item{grid-template-columns:64px 1fr}.cart-item-actions{flex-wrap:wrap;grid-column:1/-1;justify-content:space-between;align-items:center;gap:8px;display:flex}}.auth-page{justify-content:center;padding:48px 16px;display:flex}.auth-card{background:var(--card-bg);width:100%;max-width:420px;box-shadow:var(--shadow);border-radius:16px;padding:32px}.auth-card-wide{max-width:560px}.auth-subtitle{color:var(--light-text);margin-bottom:24px}.auth-submit{width:100%;margin-top:8px}.auth-footer{text-align:center;color:var(--light-text);margin-top:20px}.auth-footer a{color:var(--primary-color);font-weight:600}.form-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.checkbox-label{cursor:pointer;align-items:center;gap:8px;margin-bottom:16px;font-weight:600;display:flex}@media (width<=576px){.form-row{grid-template-columns:1fr}}.search-page{padding:32px 16px}.search-message{color:var(--light-text);margin-bottom:24px}.profile-page{padding:32px 16px}.profile-card{background:var(--card-bg);box-shadow:var(--shadow);border-radius:16px;max-width:600px;padding:32px}.profile-header{align-items:center;gap:20px;margin-bottom:28px;display:flex}.profile-avatar{object-fit:cover;border-radius:50%;width:80px;height:80px}.profile-avatar.placeholder{background:var(--primary-color);color:#fff;justify-content:center;align-items:center;font-size:32px;font-weight:800;display:flex}.role-badge{background:var(--light-bg);text-transform:capitalize;border-radius:12px;margin-top:4px;margin-right:6px;padding:4px 10px;font-size:12px;font-weight:700;display:inline-block}.role-badge.promoter{background:var(--primary-color);color:#fff}.profile-details{margin-bottom:24px}.detail-row{border-bottom:1px solid var(--border-color);justify-content:space-between;padding:12px 0;display:flex}.detail-row .label{color:var(--light-text);font-weight:600}.promo-code{color:var(--primary-color);font-weight:800}.about-page{padding:32px 16px}.about-content{background:var(--card-bg);box-shadow:var(--shadow);border-radius:16px;max-width:720px;padding:32px}.about-content h2{color:var(--primary-color);margin:24px 0 12px;font-size:20px}.about-content p{color:var(--light-text);line-height:1.7}.about-content ul{color:var(--light-text);padding-left:20px}.about-content li{margin-bottom:8px}.contact-page{padding:32px 16px}.contact-card{background:var(--card-bg);box-shadow:var(--shadow);border-radius:16px;max-width:560px;padding:32px}.contact-card>p{color:var(--light-text);margin-bottom:24px}.contact-card textarea{resize:vertical}.provider-page{padding:32px 16px}.provider-header{background:var(--card-bg);box-shadow:var(--shadow);border-radius:16px;align-items:center;gap:20px;margin-bottom:32px;padding:24px;display:flex}.provider-avatar{object-fit:cover;border-radius:50%;width:80px;height:80px}.provider-avatar.placeholder{background:var(--primary-color);color:#fff;justify-content:center;align-items:center;font-size:32px;font-weight:800;display:flex}.provider-location,.provider-count{color:var(--light-text)}