/* =========================
   MAIN PRODUCT LAYOUT
========================= */
.rx-product {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 80px;
    max-width: 1100px;
    margin: auto;
    padding: 60px 20px;
}

/* =========================
   GALLERY
========================= */
.rx-gallery {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 15px;
}

.rx-thumbnails {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.rx-thumb {
    width: 65px;
    border-radius: 8px;
    opacity: 0.6;
    cursor: pointer;
    transition: 0.2s;
}

.rx-thumb:hover {
    opacity: 1;
}

.rx-main-image img {
    width: 100%;
    max-width: 480px;
    border-radius: 12px;
}

/* =========================
   RIGHT SIDE
========================= */
.rx-summary {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.rx-title {
    font-size: 24px;
    letter-spacing: 1px;
}

.rx-price {
    font-size: 18px;
}

/* =========================
   SIZE SECTION
========================= */
.rx-size-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.rx-size-header {
    display: flex;
    gap: 6px;
    font-size: 14px;
}

.rx-size-buttons {
    display: flex;
    gap: 10px;
}

.rx-size-btn {
    border: 1px solid #bbb;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    background: transparent;
}

.rx-size-btn.active {
    background: black;
    color: white;
    border-color: black;
}

/* =========================
   QUANTITY + BUTTONS
========================= */
.rx-summary form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.quantity {
    display: flex;
    align-items: center;
    gap: 10px;
}

.single_add_to_cart_button {
    width: 100%;
    background: black !important;
    color: white !important;
    padding: 14px;
    border-radius: 6px;
}

.buy-now-btn {
    width: 100%;
    padding: 14px;
    border-radius: 6px;
    background: #2b2b2b;
    color: white;
}

/* =========================
   ACCORDION
========================= */
.rx-acc-title {
    padding: 14px 0;
    border-bottom: 1px solid #ddd;
    cursor: pointer;
}

.rx-acc-content {
    padding: 10px 0;
}

/* =========================
   RELATED PRODUCTS
========================= */
.rx-related {
    max-width: 1100px;
    margin: 80px auto;
}

.rx-related ul.products {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* =========================
   MOBILE
========================= */
@media(max-width:768px){

    .rx-product {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .rx-gallery {
        grid-template-columns: 1fr;
    }

    .rx-thumbnails {
        flex-direction: row;
    }

    .single_add_to_cart_button {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        z-index: 999;
    }
}