/* ========================================================
   product_diamond.css
   Page-specific styles for product_diamond.aspx.
   Depends on Home.css being loaded first (same shared design
   system as product.css — spacing/radius/shadow/transition
   tokens and neutrals like --white, --black, --border-light,
   --medium-gray come from there).

   This file is a straight structural port of product.css's
   purchase-panel/gallery/wishlist architecture. The only
   intentional divergence is colour: every place product.css
   reaches for var(--primary-gold)/var(--light-gold), this file
   reaches for the two diamond tokens defined right below instead,
   so the diamond page reads as its own identity rather than a
   recoloured copy. The breadcrumb strip goes further than a
   straight swap — a light gold-to-gold gradient doesn't carry the
   same weight in ice-blue, so it's rebuilt dark (obsidian → 
   charcoal) with platinum text, matching how a diamond actually
   reads: brilliance against dark velvet, not a pastel wash.
   ======================================================== */

:root {
    --diamond-primary: #4fb0dd; /* ice-blue accent — was --primary-gold */
    --diamond-primary-light: #8fd3ef; /* lighter ice — was --light-gold */
    --diamond-ink: #0b0e14; /* obsidian — used for the breadcrumb and dark accents */
    --diamond-ink-soft: #1d2330; /* charcoal — second stop of the breadcrumb gradient */
}

/* === BREADCRUMB === */
.product-breadcrumb {
    width: 100%;
    padding: 28px 0;
    background: linear-gradient(135deg, var(--diamond-ink) 0%, var(--diamond-ink-soft) 100%);
}

.product-breadcrumb-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

    .product-breadcrumb-title h2 {
        margin: 0;
        font-family: 'Manrope', sans-serif;
        font-size: 22px;
        font-weight: 700;
        color: var(--white);
    }

    .product-breadcrumb-title span {
        font-family: 'Poppins', sans-serif;
        font-size: 13px;
        font-weight: 500;
        color: #aab2bf;
    }

        .product-breadcrumb-title span a {
            color: var(--diamond-primary-light);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

/* === PRODUCT NOT FOUND === */
.product-not-found {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.product-not-found-icon {
    font-size: 4rem;
    color: #d1d5db;
    display: block;
    margin-bottom: var(--spacing-md);
}

.product-not-found h2 {
    margin-bottom: var(--spacing-sm);
}

.product-not-found p {
    margin-bottom: var(--spacing-lg);
}

/* === GALLERY (Swiper main + thumbs) === */
.product-gallery {
    position: sticky;
    top: 30px;
}

.product-main-swiper {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.zoom-image-hover {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border: 1px solid var(--border-light);
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    cursor: crosshair;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    position: relative;
}

    /* A faint icy glint across the frame — the diamond page's one
       "spend the boldness here" touch, kept to the image frame only. */
    .zoom-image-hover::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at 25% 20%, rgba(79, 176, 221, 0.14), transparent 55%);
        pointer-events: none;
    }

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-thumbs-swiper {
    box-sizing: border-box;
    padding: 2px;
}

    .product-thumbs-swiper .swiper-slide {
        border-radius: var(--radius-sm);
        overflow: hidden;
        border: 2px solid transparent;
        cursor: pointer;
        opacity: 0.6;
        transition: all var(--transition-base);
        aspect-ratio: 1 / 1;
    }

        .product-thumbs-swiper .swiper-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

    .product-thumbs-swiper .swiper-slide-thumb-active {
        border-color: var(--diamond-primary);
        opacity: 1;
    }

/* === PRODUCT INFO === */
.cr-size-and-weight-contain {
    border-bottom: 1px solid var(--border-light);
    padding-bottom: var(--spacing-lg);
}

    .cr-size-and-weight-contain .heading {
        margin-bottom: var(--spacing-sm);
        font-size: 1.6rem;
        color: var(--black);
    }

.pdescription-text {
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    color: var(--medium-gray);
    line-height: 1.8;
    white-space: pre-line;
    margin-bottom: var(--spacing-md);
}

.cr-size-and-weight {
    padding-top: var(--spacing-md);
}

    .cr-size-and-weight .list ul {
        list-style: none;
        padding: 0;
        margin: var(--spacing-sm) 0;
    }

        .cr-size-and-weight .list ul li {
            font-size: 14px;
            color: var(--dark-gray);
        }

            .cr-size-and-weight .list ul li label {
                font-weight: 600;
                margin-right: 4px;
            }

    /* Karat/size swatch chip pattern — carried over from product.css for
       parity; not currently rendered by this page's dropdown pickers. */
    .cr-size-and-weight .cr-size-weight {
        display: flex;
        align-items: center;
        padding-top: var(--spacing-md);
    }

        .cr-size-and-weight .cr-size-weight h5 {
            margin-bottom: 0;
            font-size: 1rem;
            color: var(--black);
        }

        .cr-size-and-weight .cr-size-weight .cr-kg {
            padding-left: var(--spacing-sm);
        }

            .cr-size-and-weight .cr-size-weight .cr-kg ul {
                width: 100%;
                padding: 0;
                margin: 0;
                list-style: none;
                display: flex;
                flex-wrap: wrap;
            }

                .cr-size-and-weight .cr-size-weight .cr-kg ul li {
                    margin: 2px;
                    padding: 5px 10px;
                    font-size: 12px;
                    background-color: var(--white);
                    color: var(--medium-gray);
                    border: 1px solid var(--border-light);
                    border-radius: var(--radius-sm);
                    cursor: pointer;
                    transition: all var(--transition-base);
                }

                .cr-size-and-weight .cr-size-weight .cr-kg ul .active-color {
                    background-color: var(--diamond-primary);
                    color: var(--white);
                }

/* === PURCHASE PANEL === */
.purchase-box {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    border-top: 3px solid var(--diamond-primary);
    box-shadow: var(--shadow-sm);
}

/* --- Step indicators --- */
.purchase-steps {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.purchase-step {
    display: flex;
    align-items: center;
    gap: 8px;
}

.step-circle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid var(--border-light);
    color: var(--medium-gray);
    font-size: 13px;
    font-weight: 700;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.step-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--medium-gray);
    transition: color var(--transition-base);
}

.step-connector {
    flex: 1;
    max-width: 60px;
    height: 2px;
    margin: 0 var(--spacing-sm);
    background: var(--border-light);
    transition: background-color var(--transition-base);
}

.purchase-step.is-complete .step-circle {
    border-color: var(--diamond-primary);
    background: var(--diamond-primary);
    color: var(--white);
}

    .purchase-step.is-complete .step-circle::before {
        content: '\2713';
    }

.purchase-step.is-complete .step-label {
    color: var(--black);
}

.purchase-steps.is-size-complete .step-connector {
    background: var(--diamond-primary);
}

/* --- Dropdowns --- */
.dropdown-container {
    position: relative;
    width: 100%;
}

.dropdown-wrapper {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.custom-dropdown {
    flex: 1;
    padding: 12px 16px;
    font-size: 14px;
    font-family: 'Poppins', sans-serif;
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    appearance: none;
    outline: none;
    transition: border-color var(--transition-base);
}

    .custom-dropdown:focus {
        border-color: var(--diamond-primary);
    }

.dropdown-arrow {
    width: 0;
    height: 0;
    margin-left: -24px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--dark-gray);
    pointer-events: none;
}

/* --- Price reveal box --- */
.price-box {
    margin: var(--spacing-md) 0;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    background: var(--light-gray);
    border: 1px dashed var(--border-light);
    transition: all 0.35s ease;
}

    .price-box .new-price {
        font-family: 'Poppins', sans-serif;
        font-size: 14px;
        font-weight: 500;
        color: var(--medium-gray);
    }

    .price-box.is-ready {
        background: linear-gradient(135deg, rgba(79, 176, 221, 0.12), rgba(79, 176, 221, 0.04));
        border: 1px solid var(--diamond-primary);
        transform: scale(1.01);
    }

        .price-box.is-ready .new-price {
            font-family: 'Manrope', sans-serif;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--diamond-primary);
        }

/* --- CTA hierarchy --- */
.cr-add-button {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    margin-top: var(--spacing-lg);
    position: relative;
}

.btn-add-to-cart {
    flex: 1;
    height: 50px;
    background: linear-gradient(135deg, var(--diamond-primary), var(--diamond-primary-light));
    color: var(--black);
    border: none;
    border-radius: var(--radius-sm);
    font-family: 'Manrope', sans-serif;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

    .btn-add-to-cart:hover:not(:disabled) {
        background: linear-gradient(135deg, var(--black), #2d2d2d);
        color: var(--white);
    }

    .btn-add-to-cart:disabled,
    .btn-add-to-cart.is-disabled {
        background: var(--light-gray);
        color: #b3b3b3;
        cursor: not-allowed;
        pointer-events: none;
    }

    .btn-add-to-cart.is-loading {
        color: transparent !important;
        pointer-events: none;
    }

        .btn-add-to-cart.is-loading::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 18px;
            height: 18px;
            margin: -9px 0 0 -9px;
            border: 2px solid rgba(0, 0, 0, 0.25);
            border-top-color: var(--black);
            border-radius: 50%;
            animation: btnSpin 0.6s linear infinite;
        }

@keyframes btnSpin {
    to {
        transform: rotate(360deg);
    }
}

/* --- Wishlist button ---
   Kept the same rose accent as product.css. Love/heart red doesn't
   compete with the diamond ice-blue theme — it's a semantic colour
   for the action, not a brand colour, so it stays constant across
   every product-type page rather than being retthemed per page. */
:root {
    --wishlist-accent: #b23a5c;
    --wishlist-accent-soft: #fdf1f4;
}

.wishlist-btn {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    padding: 0;
    background: var(--white);
    border: 1.5px solid var(--border-light);
    border-radius: 50%;
    cursor: pointer;
    position: relative;
    color: transparent;
    font-size: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
}

    .wishlist-btn::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 21px;
        height: 21px;
        transform: translate(-50%, -50%) scale(1);
        background-color: var(--wishlist-accent);
        -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 21s-7-4.35-9.5-8.5C.5 8.5 2 4 6 4c2 0 3.5 1 4 2.5C10.5 5 12 4 14 4c4 0 5.5 4.5 3.5 8.5C19 16.65 12 21 12 21z'/%3E%3C/svg%3E");
        mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 21s-7-4.35-9.5-8.5C.5 8.5 2 4 6 4c2 0 3.5 1 4 2.5C10.5 5 12 4 14 4c4 0 5.5 4.5 3.5 8.5C19 16.65 12 21 12 21z'/%3E%3C/svg%3E");
        -webkit-mask-size: contain;
        mask-size: contain;
        -webkit-mask-repeat: no-repeat;
        mask-repeat: no-repeat;
        -webkit-mask-position: center;
        mask-position: center;
        transition: background-color 0.25s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .wishlist-btn:hover:not(.is-wishlisted):not(.is-loading) {
        border-color: var(--wishlist-accent);
        background: var(--wishlist-accent-soft);
        transform: translateY(-1px);
        box-shadow: 0 4px 10px rgba(178, 58, 92, 0.15);
    }

    .wishlist-btn:active:not(.is-loading) {
        transform: translateY(0) scale(0.94);
    }

    .wishlist-btn:focus-visible {
        outline: none;
        box-shadow: 0 0 0 3px rgba(178, 58, 92, 0.25);
    }

    .wishlist-btn.is-wishlisted {
        background: linear-gradient(135deg, var(--wishlist-accent), #c9536f);
        border-color: transparent;
        box-shadow: 0 3px 10px rgba(178, 58, 92, 0.3);
    }

        .wishlist-btn.is-wishlisted::before {
            background-color: var(--white);
            -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 21s-7-4.35-9.5-8.5C.5 8.5 2 4 6 4c2 0 3.5 1 4 2.5C10.5 5 12 4 14 4c4 0 5.5 4.5 3.5 8.5C19 16.65 12 21 12 21z'/%3E%3C/svg%3E");
            mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000'%3E%3Cpath d='M12 21s-7-4.35-9.5-8.5C.5 8.5 2 4 6 4c2 0 3.5 1 4 2.5C10.5 5 12 4 14 4c4 0 5.5 4.5 3.5 8.5C19 16.65 12 21 12 21z'/%3E%3C/svg%3E");
        }

        .wishlist-btn.is-wishlisted.is-popping {
            animation: wishlistPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

            .wishlist-btn.is-wishlisted.is-popping::before {
                animation: wishlistIconPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
            }

    .wishlist-btn.is-loading {
        pointer-events: none;
    }

        .wishlist-btn.is-loading::before {
            -webkit-mask-image: none;
            mask-image: none;
            background-color: transparent;
            width: 16px;
            height: 16px;
            border: 2px solid rgba(178, 58, 92, 0.25);
            border-top-color: var(--wishlist-accent);
            border-radius: 50%;
            animation: btnSpin 0.6s linear infinite;
        }

/* --- Wishlist confirmation burst --- */
.wishlist-burst {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--wishlist-accent);
    pointer-events: none;
    z-index: 15;
    animation: wishlistBurst 0.6s ease-out forwards;
}

@keyframes wishlistPop {
    0% {
        transform: scale(1);
    }

    45% {
        transform: scale(1.18);
    }

    70% {
        transform: scale(0.96);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes wishlistIconPop {
    0% {
        transform: translate(-50%, -50%) scale(1);
    }

    45% {
        transform: translate(-50%, -50%) scale(1.3);
    }

    100% {
        transform: translate(-50%, -50%) scale(1);
    }
}

@keyframes wishlistBurst {
    0% {
        opacity: 1;
        transform: translate(-50%, -50%) translate(0, 0) scale(1);
    }

    100% {
        opacity: 0;
        transform: translate(-50%, -50%) translate(var(--burst-x), var(--burst-y)) scale(0.4);
    }
}

/* --- Wishlist feedback toast --- */
.wishlist-toast {
    position: absolute;
    bottom: calc(100% + 10px);
    right: 0;
    max-width: 220px;
    padding: 8px 14px;
    background: var(--black);
    color: var(--white);
    font-size: 12px;
    font-weight: 500;
    line-height: 1.4;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    z-index: 20;
}

    .wishlist-toast::after {
        content: '';
        position: absolute;
        top: 100%;
        right: 18px;
        border: 6px solid transparent;
        border-top-color: var(--black);
    }

    .wishlist-toast.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

    .wishlist-toast.is-error {
        background: #b3273e;
    }

        .wishlist-toast.is-error::after {
            border-top-color: #b3273e;
        }

/* --- Trust strip --- */
.trust-strip {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    flex: 1;
    text-align: center;
}

    .trust-item i {
        font-size: 20px;
        color: var(--diamond-primary);
    }

    .trust-item span {
        font-size: 11px;
        color: var(--medium-gray);
        font-weight: 500;
        line-height: 1.3;
    }

/* --- Mobile sticky purchase bar --- */
.mobile-sticky-bar {
    display: none;
}

@media (max-width: 767px) {
    .mobile-sticky-bar {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 500;
        padding: 10px var(--spacing-md);
        background: var(--white);
        border-top: 1px solid var(--border-light);
        box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
        transform: translateY(100%);
        transition: transform 0.3s ease;
    }

        .mobile-sticky-bar.is-visible {
            transform: translateY(0);
        }

    .sticky-price {
        flex: 1;
        font-family: 'Manrope', sans-serif;
        font-size: 14px;
        font-weight: 700;
        color: var(--black);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

        .sticky-price.is-ready {
            color: var(--diamond-primary);
        }

    .sticky-add-btn {
        flex-shrink: 0;
        height: 42px;
        padding: 0 20px;
        background: linear-gradient(135deg, var(--diamond-primary), var(--diamond-primary-light));
        color: var(--black);
        border: none;
        border-radius: var(--radius-sm);
        font-weight: 700;
        font-size: 13px;
        cursor: pointer;
    }

        .sticky-add-btn:disabled {
            background: var(--light-gray);
            color: #b3b3b3;
            cursor: not-allowed;
        }
}

/* === TABS / INFORMATION PANEL === */
.cr-paking-delivery {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
}

    .cr-paking-delivery .nav-tabs {
        border-bottom: 1px solid var(--border-light);
        margin-bottom: var(--spacing-lg);
    }

        .cr-paking-delivery .nav-tabs .nav-link {
            color: var(--medium-gray);
            font-weight: 600;
            border: none;
            border-bottom: 2px solid transparent;
        }

            .cr-paking-delivery .nav-tabs .nav-link.active {
                color: var(--diamond-primary);
                border-bottom-color: var(--diamond-primary);
                background: none;
            }

    .cr-paking-delivery .heading {
        margin-top: var(--spacing-lg);
        margin-bottom: var(--spacing-sm);
        font-size: 1.1rem;
        color: var(--black);
    }

    .cr-paking-delivery .cr-description p {
        color: var(--medium-gray);
        line-height: 1.8;
    }

    .cr-paking-delivery .list ul {
        list-style: none;
        padding: 0;
        margin-top: var(--spacing-md);
    }

        .cr-paking-delivery .list ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
        }

            .cr-paking-delivery .list ul li label {
                font-weight: 600;
                margin-right: 4px;
            }

/* === GOLD COLOUR SWATCHES === */
.custom-radio-button-list input[type="radio"] {
    display: none;
}

.custom-radio-button-list img {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    margin-top: 6px;
    display: block;
}

.custom-radio-button-list label {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    cursor: pointer;
    margin-right: var(--spacing-md);
    padding: 8px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.custom-radio-button-list input[type="radio"]:checked + label {
    border-color: var(--diamond-primary);
    box-shadow: 0 0 0 3px rgba(79, 176, 221, 0.2);
}

/* === RESPONSIVE === */
@media (max-width: 991px) {
    .product-gallery {
        position: static;
        margin-bottom: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .product-breadcrumb-title h2 {
        font-size: 18px;
    }

    .custom-radio-button-list img {
        width: 48px;
        height: 48px;
    }
}