.qcs-grid{display:grid;gap:24px;margin:1.5em 0}
.qcs-cols-1{grid-template-columns:1fr}.qcs-cols-2{grid-template-columns:repeat(2,1fr)}
.qcs-cols-3{grid-template-columns:repeat(3,1fr)}.qcs-cols-4{grid-template-columns:repeat(4,1fr)}
.qcs-cols-5{grid-template-columns:repeat(5,1fr)}.qcs-cols-6{grid-template-columns:repeat(6,1fr)}
@media(max-width:800px){.qcs-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.qcs-grid{grid-template-columns:1fr}}
.qcs-card{border:1px solid #e3e3e8;border-radius:10px;padding:16px;background:#fff}
.qcs-card img{width:100%;height:auto;border-radius:6px}
.qcs-card h3{font-size:1.05em;margin:.6em 0 .2em}
.qcs-card h3 a{text-decoration:none}
.qcs-price{font-weight:600;margin:.2em 0 .8em}.qcs-price del{opacity:.55;font-weight:400}.qcs-price ins{text-decoration:none}
.qcs-add{display:flex;gap:8px;align-items:center}
.qcs-add input[type=number]{width:64px}
.qcs-button{display:inline-block;background:#4f46e5;color:#fff!important;border:0;border-radius:6px;padding:10px 18px;font-size:1em;cursor:pointer;text-decoration:none;line-height:1.2}
.qcs-button:hover{background:#4338ca}.qcs-button[disabled]{opacity:.6;cursor:wait}
.qcs-secondary{background:#e5e7eb;color:#111!important}.qcs-secondary:hover{background:#d1d5db}
.qcs-link{background:none;border:0;font-size:1.4em;cursor:pointer;color:#b91c1c}
.qcs-table{width:100%;border-collapse:collapse;margin:1em 0}
.qcs-table th,.qcs-table td{padding:10px 8px;border-bottom:1px solid #e3e3e8;text-align:left}
.qcs-table .qcs-num{text-align:right;white-space:nowrap}
.qcs-total th{border-top:2px solid #111}
.qcs-cart input[type=number]{width:70px}
.qcs-actions{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
.qcs-checkout{max-width:560px}
.qcs-checkout label{display:block;font-weight:600;margin-bottom:4px}
.qcs-checkout input[type=text],.qcs-checkout input[type=email]{width:100%;padding:10px;border:1px solid #d1d5db;border-radius:6px;box-sizing:border-box}
#qcs-card-element{padding:12px;border:1px solid #d1d5db;border-radius:6px;background:#fff}
.qcs-error{color:#b91c1c;min-height:1.4em;margin:.6em 0}
.qcs-secure{font-size:.85em;opacity:.7}
.qcs-out{color:#b91c1c}
.qcs-notice{padding:12px 16px;background:#f3f4f6;border-radius:6px}

/* Product page */
.qcs-product{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;margin:0 0 2em}
@media(max-width:720px){.qcs-product{grid-template-columns:1fr}}
.qcs-main img{width:100%;height:auto;border-radius:10px;display:block}
.qcs-thumbs{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.qcs-thumb{padding:0;border:2px solid transparent;border-radius:6px;background:none;cursor:pointer;width:68px;height:68px;overflow:hidden}
.qcs-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.qcs-thumb.is-active{border-color:#4f46e5}
.qcs-summary .qcs-price{font-size:1.5em}
.qcs-short{margin-bottom:1em}
.qcs-opt{display:block;margin-bottom:12px}
.qcs-opt span{display:block;font-weight:600;margin-bottom:4px}
.qcs-opt select{width:100%;max-width:280px;padding:8px}
.qcs-add-row{display:flex;gap:8px;align-items:center}
.qcs-add-row input[type=number]{width:64px}
.qcs-meta{list-style:none;padding:0;margin:1.2em 0 0;font-size:.92em}
.qcs-meta li{margin:.25em 0}
.qcs-attrs th{width:30%;background:#f9fafb}
.qcs-additional{margin-top:2em}
.qcs-filters{display:flex;gap:8px;flex-wrap:wrap;list-style:none;padding:0;margin:0 0 1em}
.qcs-filters a{display:inline-block;padding:6px 14px;border:1px solid #d1d5db;border-radius:999px;text-decoration:none;color:inherit}
.qcs-filters a.is-active{background:#4f46e5;border-color:#4f46e5;color:#fff}
.qcs-card .qcs-button{display:inline-block}
.qcs-card .qcs-opt{display:none}
.qcs-cart-product{display:flex;gap:12px;align-items:center}
.qcs-cart-thumb img{width:64px;height:64px;object-fit:cover;border-radius:6px;display:block}

/* Oxygen elements */
.qcs-oxy-title{margin:0}
.qcs-oxy-add .qcs-add{margin:0}
.qcs-oxy-meta .qcs-meta{margin-top:0}