:root{--bg: #f5f5f5;--card-bg: #ffffff;--primary: #1e3a8a;--primary-hover: #1e40af;--danger: #dc2626;--danger-hover: #b91c1c;--success: #16a34a;--success-hover: #15803d;--muted: #6b7280;--border: #e5e7eb;--text: #111827;--text-secondary: #6b7280;--radius: 8px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}.nav{background:var(--primary);color:#fff;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.nav-title{font-weight:700;font-size:16px;white-space:nowrap}.nav-links{display:flex;gap:12px;align-items:center}.nav-links a{color:#ffffffd9;text-decoration:none;font-size:13px;padding:4px 8px;border-radius:4px}.nav-links a:hover,.nav-links a.active{background:#ffffff26;color:#fff}.env-selector{display:flex;gap:4px}.env-btn{padding:4px 10px;border:1px solid rgba(255,255,255,.3);border-radius:4px;background:transparent;color:#ffffffb3;font-size:12px;cursor:pointer}.env-btn.active{background:#fff;color:var(--primary);font-weight:600}.env-btn:hover:not(.active){border-color:#fff;color:#fff}.container{max-width:480px;margin:0 auto;padding:20px}.card{background:var(--card-bg);border-radius:var(--radius);border:1px solid var(--border);padding:20px;margin-bottom:16px}.card-title{font-size:16px;font-weight:600;margin-bottom:12px;color:var(--text)}.form-group{margin-bottom:12px}.form-group label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:4px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;font-family:var(--font)}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #1e3a8a1a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;width:100%;transition:background .15s;font-family:var(--font)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--danger-hover)}.btn-success{background:var(--success);color:#fff}.btn-success:hover:not(:disabled){background:var(--success-hover)}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover:not(:disabled){background:var(--bg)}.btn-sm{padding:6px 12px;font-size:13px}.btn-group{display:flex;flex-direction:column;gap:8px}.btn-google{background:#4285f4;color:#fff}.btn-google:hover:not(:disabled){background:#3367d6}.btn-apple{background:#000;color:#fff}.btn-apple:hover:not(:disabled){background:#333}.btn-facebook{background:#1877f2;color:#fff}.btn-facebook:hover:not(:disabled){background:#166fe5}.info-row{margin-bottom:8px}.info-label{font-size:12px;color:var(--text-secondary);font-weight:500}.info-value{font-size:14px;word-break:break-all}.separator{border:none;border-top:1px solid var(--border);margin:16px 0}.response-box{background:#1e1e1e;color:#d4d4d4;border-radius:var(--radius);padding:12px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:12px;overflow-x:auto;white-space:pre-wrap;word-break:break-all;max-height:400px;overflow-y:auto}.response-box.success{border-left:3px solid var(--success)}.response-box.error{border-left:3px solid var(--danger)}.status-badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600}.status-badge.success{background:#dcfce7;color:#166534}.status-badge.error{background:#fee2e2;color:#991b1b}.status-badge.warning{background:#fef9c3;color:#854d0e}.checkbox-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}.checkbox-row input[type=checkbox]{width:auto}.checkbox-row label{margin-bottom:0;font-size:14px;color:var(--text)}.alert{padding:10px 14px;border-radius:var(--radius);font-size:13px;margin-bottom:12px}.alert-info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}.alert-warning{background:#fef9c3;color:#854d0e;border:1px solid #fde68a}.tabs{display:flex;gap:0;margin-bottom:16px;border-bottom:2px solid var(--border)}.tab-btn{padding:8px 16px;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;font-size:14px;cursor:pointer;color:var(--text-secondary);font-family:var(--font)}.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:500}.tab-content{display:none}.tab-content.active{display:block}.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;margin-right:6px}@keyframes spin{to{transform:rotate(360deg)}}.section{margin-bottom:16px}.section-header{cursor:pointer;display:flex;justify-content:space-between;align-items:center;user-select:none}.section-header:after{content:"▶";transition:transform .2s;font-size:12px;color:var(--muted);flex-shrink:0}.section-open .section-header:after{transform:rotate(90deg)}.section-body{display:none;margin-top:12px}.section-open .section-body{display:block}.step-num{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;font-size:12px;font-weight:600;margin-right:8px;flex-shrink:0}.cart-item-row{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}.cart-item-row:last-child{border-bottom:none}.cart-item-name{flex:1;min-width:0}.cart-item-qty{display:flex;align-items:center;gap:4px}.cart-item-qty button{width:26px;height:26px;border-radius:4px;border:1px solid var(--border);background:var(--card-bg);cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center}.cart-item-qty button:hover{background:var(--bg)}.cart-item-qty span{min-width:24px;text-align:center;font-weight:500}.cart-item-price{font-weight:500;white-space:nowrap}.cart-item-remove{background:none;border:none;color:var(--danger);cursor:pointer;font-size:16px;padding:2px 6px}.vendor-group{margin-bottom:12px;padding:12px;border:1px solid var(--border);border-radius:var(--radius)}.vendor-header{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-weight:600;font-size:13px;color:var(--primary)}.order-card{border:1px solid var(--border);border-radius:var(--radius);padding:12px;margin-bottom:8px}.order-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.summary-row{display:flex;justify-content:space-between;padding:4px 0;font-size:13px}.summary-row.total{font-weight:600;font-size:15px;border-top:1px solid var(--border);padding-top:8px;margin-top:4px}.section-response{margin-top:12px}.container-wide{max-width:640px}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}.product-card{border:1px solid var(--border);border-radius:var(--radius);padding:10px;text-align:center;cursor:pointer;transition:border-color .15s,box-shadow .15s;background:var(--card-bg)}.product-card:hover{border-color:var(--primary);box-shadow:0 2px 8px #0000000f}.product-card img{width:80px;height:80px;object-fit:contain;margin-bottom:6px;border-radius:4px}.product-card .product-name{font-size:12px;line-height:1.3;height:2.6em;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:4px}.product-card .product-price{font-weight:600;font-size:14px;color:var(--primary)}.product-card .product-price-old{font-size:11px;color:var(--muted);text-decoration:line-through}.product-card .product-stock{font-size:10px;margin-top:2px}.product-card .product-actions{margin-top:6px;display:flex;gap:4px}.category-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.category-chip{padding:4px 12px;border:1px solid var(--border);border-radius:16px;font-size:12px;cursor:pointer;background:var(--card-bg);transition:all .15s;white-space:nowrap}.category-chip:hover,.category-chip.active{background:var(--primary);color:#fff;border-color:var(--primary)}.address-card{border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;margin-bottom:8px;display:flex;justify-content:space-between;align-items:center;gap:8px}.address-card.selected{border-color:var(--primary);background:#eff6ff}.address-card-body{flex:1;min-width:0;cursor:pointer}.address-card-title{font-weight:500;font-size:14px}.address-card-detail{font-size:12px;color:var(--muted);margin-top:2px}.address-card-actions{display:flex;gap:4px;flex-shrink:0}.search-wrap{position:relative}.search-wrap input{width:100%;padding:10px 12px 10px 36px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;font-family:var(--font)}.search-wrap input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #1e3a8a1a}.search-wrap:before{content:"🔍";position:absolute;left:10px;top:50%;transform:translateY(-50%);font-size:16px;pointer-events:none}.mini-cart{position:sticky;top:60px;z-index:10;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:10px 16px;margin-bottom:16px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 8px #0000000f}.mini-cart-left{display:flex;align-items:center;gap:12px}.mini-cart-count{background:var(--primary);color:#fff;border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100}.modal-content{background:var(--card-bg);border-radius:var(--radius);padding:24px;max-width:480px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:0 8px 32px #00000026}.modal-content .card-title{margin-bottom:16px}.pagination{display:flex;justify-content:center;gap:4px;margin-top:12px}.pagination button{padding:4px 10px;border:1px solid var(--border);border-radius:4px;background:var(--card-bg);cursor:pointer;font-size:13px}.pagination button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.pagination button:disabled{opacity:.4;cursor:not-allowed}.threeds-modal{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.threeds-modal iframe{width:90%;max-width:500px;height:600px;border:none;border-radius:var(--radius);background:#fff}