:root{--primary:#4f46e5;--primary-hover:#4338ca;--secondary:#0f172a;--accent:#06b6d4;--background:#f8fafc;--card-bg:#fff;--text-main:#1e293b;--text-muted:#64748b;--border:#e2e8f0;--error:#ef4444;--error-bg:#fef2f2;--success:#10b981;--success-bg:#ecfdf5;--radius:12px;--shadow:0 4px 6px -1px #00000012, 0 2px 4px -1px #0000000a;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -2px #00000008}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--text-main);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{border-bottom:1px solid var(--border);z-index:100;background:#fff;position:sticky;top:0;box-shadow:0 1px 3px #0000000d}.nav-content{justify-content:space-between;align-items:center;height:70px;display:flex}.logo{color:var(--secondary);letter-spacing:-.5px;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;display:flex}.nav-links{align-items:center;gap:24px;display:flex}.nav-link{color:var(--text-muted);font-size:.95rem;font-weight:500;transition:color .2s}.nav-link:hover,.nav-link.active{color:var(--primary)}.nav-actions{align-items:center;gap:16px;display:flex}.cart-icon-btn{cursor:pointer;color:var(--text-main);background:0 0;border:none;justify-content:center;align-items:center;padding:8px;display:flex;position:relative}.cart-badge{background:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;font-size:.7rem;font-weight:700;display:flex;position:absolute;top:2px;right:2px}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:.95rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover);box-shadow:0 4px 12px #4f46e540}.btn-primary:disabled{opacity:.65;cursor:not-allowed}.btn-secondary{color:var(--text-main);border:1px solid var(--border);background:#f1f5f9}.btn-secondary:hover{background:#e2e8f0}.hero{color:#fff;border-radius:var(--radius);text-align:center;background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);margin:24px 0 40px;padding:60px 20px}.hero h1{letter-spacing:-.5px;margin-bottom:15px;font-size:2.5rem;font-weight:800}.hero p{color:#94a3b8;max-width:600px;margin:0 auto 25px;font-size:1.05rem}.products-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:25px;margin-bottom:40px;display:grid}.product-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;transition:transform .2s,box-shadow .2s;display:flex;overflow:hidden}.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.product-img{object-fit:cover;background:#f1f5f9;width:100%;height:200px}.product-body{flex-direction:column;flex:1;padding:18px;display:flex}.product-title{color:var(--secondary);margin-bottom:6px;font-size:1.05rem;font-weight:700}.product-desc{color:var(--text-muted);flex:1;margin-bottom:16px;font-size:.85rem}.product-footer{justify-content:space-between;align-items:center;margin-top:auto;display:flex}.product-price{color:var(--secondary);font-size:1.2rem;font-weight:800}.table{border-collapse:collapse;border-radius:var(--radius);border:1px solid var(--border);background:#fff;width:100%;overflow:hidden}.table th,.table td{text-align:left;border-bottom:1px solid var(--border);padding:14px 16px}.table th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;background:#f8fafc;font-size:.85rem;font-weight:700}.checkout-page-container{padding:30px 20px 80px}.checkout-header-section{margin-bottom:24px}.checkout-title{color:var(--secondary);letter-spacing:-.5px;font-size:2rem;font-weight:800}.checkout-subtitle{color:var(--text-muted);margin-top:4px;font-size:.95rem}.checkout-stepper{border:1px solid var(--border);background:#fff;border-radius:50px;justify-content:space-between;align-items:center;max-width:650px;margin:0 auto 35px;padding:16px 24px;display:flex;box-shadow:0 1px 2px #0000000a}.step-item{color:var(--text-muted);align-items:center;gap:8px;font-size:.88rem;font-weight:600;display:flex}.step-item.active{color:var(--primary)}.step-item.completed{color:var(--success)}.step-number{width:26px;height:26px;color:var(--text-muted);background:#f1f5f9;border-radius:50%;justify-content:center;align-items:center;font-size:.8rem;font-weight:700;display:flex}.step-item.active .step-number{background:var(--primary);color:#fff}.step-item.completed .step-number{background:var(--success);color:#fff}.step-connector{background:var(--border);flex:1;height:2px;margin:0 12px}.step-connector.completed{background:var(--success)}.checkout-main-grid{grid-template-columns:1.45fr 1fr;align-items:start;gap:32px;display:grid}.checkout-form-column{flex-direction:column;gap:20px;display:flex}.checkout-card{border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;margin-bottom:20px;padding:24px}.checkout-card-header{border-bottom:1px solid var(--border);align-items:center;gap:12px;margin-bottom:20px;padding-bottom:12px;display:flex}.checkout-card-icon-badge{background:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:.85rem;font-weight:700;display:flex}.checkout-card-header h3{color:var(--secondary);font-size:1.15rem;font-weight:700}.form-group{margin-bottom:16px}.form-group label{color:var(--text-main);margin-bottom:6px;font-size:.88rem;font-weight:600;display:block}.form-group label .req{color:var(--error)}.form-group input,.form-group select{border:1px solid var(--border);width:100%;color:var(--text-main);background:#fff;border-radius:8px;outline:none;padding:10px 14px;font-size:.95rem;transition:border-color .2s,box-shadow .2s}.form-group input:focus,.form-group select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51f}.form-group input.input-error,.form-group select.input-error{border-color:var(--error);background-color:var(--error-bg)}.field-error-msg{color:var(--error);margin-top:4px;font-size:.8rem;font-weight:500;display:block}.form-grid-2{grid-template-columns:1fr 1fr;gap:16px;display:grid}.form-grid-3{grid-template-columns:1.2fr 1.2fr .8fr;gap:16px;display:grid}.input-with-prefix{border:1px solid var(--border);background:#fff;border-radius:8px;align-items:center;display:flex;overflow:hidden}.input-with-prefix .prefix{color:var(--text-muted);border-right:1px solid var(--border);background:#f8fafc;padding:10px 12px;font-size:.9rem;font-weight:600}.input-with-prefix input{border:none;border-radius:0;flex:1}.input-with-prefix input:focus{box-shadow:none}.checkbox-group{margin-top:12px}.checkbox-label{cursor:pointer;color:var(--text-main);align-items:center;gap:8px;font-size:.9rem;display:flex}.payment-option-box{border:1px solid var(--border);background:#fff;border-radius:8px;padding:16px;transition:all .2s}.payment-option-box.selected{border-color:var(--primary);background:#f5f3ff}.radio-label{cursor:pointer;align-items:flex-start;gap:12px;display:flex}.radio-label input[type=radio]{accent-color:var(--primary);width:18px;height:18px;margin-top:3px}.checkout-error-banner{background:var(--error-bg);color:#b91c1c;border:1px solid #fecaca;border-radius:8px;padding:12px 16px;font-size:.9rem;font-weight:500}.order-summary-card{border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:24px;position:sticky;top:90px}.summary-title{color:var(--secondary);margin-bottom:18px;font-size:1.2rem;font-weight:800}.summary-items-list{flex-direction:column;gap:14px;max-height:280px;padding-right:4px;display:flex;overflow-y:auto}.summary-item-row{align-items:center;gap:12px;display:flex}.summary-item-img{object-fit:cover;border:1px solid var(--border);background:#f1f5f9;border-radius:8px;width:48px;height:48px}.summary-item-info{flex:1;min-width:0}.summary-item-name{color:var(--text-main);white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;font-weight:600;overflow:hidden}.summary-item-meta{color:var(--text-muted);font-size:.8rem}.summary-item-price{color:var(--secondary);font-size:.92rem;font-weight:700}.summary-divider{border:none;border-top:1px solid var(--border);margin:18px 0}.summary-calc-row{color:var(--text-muted);justify-content:space-between;align-items:center;margin-bottom:10px;font-size:.92rem;display:flex}.summary-calc-row span:last-child{color:var(--text-main);font-weight:600}.summary-total-row{color:var(--secondary);justify-content:space-between;align-items:center;margin-bottom:22px;font-size:1.3rem;font-weight:800;display:flex}.summary-total-row .total-amount{color:var(--primary)}.place-order-btn{width:100%;padding:14px 20px;font-size:1.05rem;font-weight:700;box-shadow:0 4px 14px #4f46e559}.trust-badge-row{color:var(--text-muted);justify-content:center;align-items:center;gap:8px;margin-top:16px;font-size:.8rem;display:flex}@media (width<=900px){.checkout-main-grid{grid-template-columns:1fr}.cart-grid-container{grid-template-columns:1fr!important}.order-summary-card{margin-top:10px;position:static}}@media (width<=600px){.form-grid-2,.form-grid-3{grid-template-columns:1fr;gap:12px}.checkout-stepper{padding:12px 16px}.step-label{display:none}.checkout-title{font-size:1.6rem}}