/* ===========================================
   ESTILOS ESPECÍFICOS PARA PÁGINA PRODUTO
   Etapa 4 — layout profissional
   =========================================== */

.product-page {
    padding-bottom: calc(5.5rem + env(safe-area-inset-bottom));
    max-width: var(--catalog-layout-max-width);
}

.page-produto {
    background:
        radial-gradient(ellipse 90% 50% at 50% -5%, rgba(242, 5, 25, 0.06), transparent 55%),
        var(--color-bg);
}

@media (min-width: 992px) {
    .product-page {
        padding-bottom: 3rem;
    }
}

.product-page__header {
    margin-bottom: 1.5rem;
}

/* Page-header moderno — produto */
.page-produto .page-header--product {
    margin-bottom: 1.75rem;
    padding: 1.1rem 1.15rem 1.2rem 1rem;
    background: linear-gradient(
        135deg,
        var(--color-surface) 0%,
        var(--color-border-subtle) 45%,
        var(--color-surface) 100%
    );
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
    position: relative;
    overflow: hidden;
}

.page-produto .page-header--product::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
}

.page-produto .page-header--product::after {
    content: '';
    position: absolute;
    right: -2rem;
    top: -2.5rem;
    width: 9rem;
    height: 9rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(242, 5, 25, 0.09) 0%, transparent 70%);
    pointer-events: none;
}

.page-produto .page-header--product .page-header__breadcrumb {
    position: relative;
    z-index: 1;
    margin-bottom: 0.85rem;
    padding-left: 0.4rem;
}

.page-produto .page-header--product .breadcrumb {
    margin-bottom: 0;
    padding: 0;
    background: transparent;
    font-size: var(--text-xs);
}

.page-produto .page-header--product .breadcrumb-item + .breadcrumb-item::before {
    color: var(--color-text-muted);
    opacity: 0.65;
}

.page-produto .page-header--product .breadcrumb a {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.45rem;
    border-radius: var(--radius-full);
    transition: background-color var(--transition), color var(--transition);
}

.page-produto .page-header--product .breadcrumb a:hover {
    background: rgba(242, 5, 25, 0.1);
    color: var(--color-accent-hover);
}

.page-produto .page-header--product .page-header__content {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding-left: 0.4rem;
    position: relative;
    z-index: 1;
}

.page-produto .page-header--product .page-header__mark {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(145deg, rgba(242, 5, 25, 0.22) 0%, rgba(242, 5, 25, 0.1) 100%);
    color: var(--color-accent);
    font-size: 1.35rem;
    line-height: 1;
    border: 1px solid rgba(242, 5, 25, 0.28);
    box-shadow: 0 4px 14px rgba(242, 5, 25, 0.15);
}

.page-produto .page-header--product .page-header__mark--warning {
    background: linear-gradient(145deg, rgba(214, 158, 46, 0.22) 0%, rgba(214, 158, 46, 0.1) 100%);
    color: var(--color-warning);
    border-color: rgba(214, 158, 46, 0.35);
    box-shadow: 0 4px 14px rgba(214, 158, 46, 0.12);
}

.page-produto .page-header--product .page-header__text {
    min-width: 0;
    flex: 1;
}

.page-produto .page-header--product .page-header__eyebrow {
    margin: 0 0 0.2rem;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-accent);
}

.page-produto .page-header--product .page-header__title {
    font-size: clamp(1.35rem, 2.4vw, var(--text-2xl));
    line-height: var(--leading-tight);
    margin: 0 0 0.45rem;
}

.page-produto .page-header--product .page-header__lead {
    margin: 0 0 0.5rem;
    font-size: clamp(1.05rem, 2vw, var(--text-lg));
    font-weight: 600;
    color: var(--color-text);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.page-produto .page-header--product .page-header__subtitle {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: var(--leading-relaxed);
}

.page-produto .page-header--product .page-header__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem;
}

.page-produto .page-header--product .page-header__stat {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-full);
    background: rgba(242, 5, 25, 0.1);
    border: 1px solid rgba(242, 5, 25, 0.22);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-text);
}

.page-produto .page-header--product .page-header__stat--muted {
    background: var(--color-bg);
    border-color: var(--color-border);
    color: var(--color-text-muted);
}

.page-produto .page-header--product.page-header--product-error::before,
.page-produto .page-header--product:has(.page-header__mark--warning)::before {
    background: linear-gradient(180deg, var(--color-warning) 0%, #c7860f 100%);
}

@media (min-width: 768px) {
    .page-produto .page-header--product {
        padding: 1.3rem 1.5rem 1.35rem 1.15rem;
        margin-bottom: 2rem;
    }

    .page-produto .page-header--product .page-header__content {
        gap: 1rem;
        padding-left: 0.55rem;
    }

    .page-produto .page-header--product .page-header__mark {
        width: 54px;
        height: 54px;
        font-size: 1.5rem;
    }

    .page-produto .page-header--product .page-header__lead {
        font-size: var(--text-xl);
        -webkit-line-clamp: 3;
    }
}

@media (max-width: 575.98px) {
    .page-produto .page-header--product .page-header__lead {
        font-size: var(--text-base);
    }
}

body.dark-theme .page-produto .page-header--product {
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.04) 0%,
        var(--color-surface) 55%,
        var(--color-surface) 100%
    );
    border-color: var(--color-border);
    box-shadow: none;
}

body.dark-theme .page-produto .page-header--product::after {
    background: radial-gradient(circle, rgba(242, 5, 25, 0.12) 0%, transparent 70%);
}

body.dark-theme .page-produto .page-header--product .page-header__mark {
    background: rgba(242, 5, 25, 0.18);
    border-color: rgba(242, 5, 25, 0.3);
    color: var(--color-accent-bright);
    box-shadow: none;
}

body.dark-theme .page-produto .page-header--product .page-header__eyebrow {
    color: var(--color-accent-bright);
}

body.dark-theme .page-produto .page-header--product .page-header__stat {
    background: rgba(242, 5, 25, 0.14);
    border-color: rgba(242, 5, 25, 0.28);
}

body.dark-theme .page-produto .page-header--product .page-header__stat--muted {
    background: var(--color-surface-elevated);
    border-color: var(--color-border);
}

/* Container principal — vitrine de produto */
.produto-detalhes {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.produto-detalhes::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent) 0%, rgba(242, 5, 25, 0.35) 100%);
    pointer-events: none;
}

@media (min-width: 992px) {
    .produto-detalhes {
        padding: 2rem 2.25rem;
    }
}

.product-page__grid {
    --bs-gutter-x: 1.25rem;
    --bs-gutter-y: 1.25rem;
}

@media (min-width: 992px) {
    .product-page__grid {
        --bs-gutter-x: 2rem;
        --bs-gutter-y: 2rem;
    }
}

/* Galeria premium */
.product-gallery {
    position: relative;
}

.produto-imagem-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(ellipse 85% 70% at 50% 25%, rgba(242, 5, 25, 0.06), transparent 65%),
        var(--color-border-subtle);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.product-gallery__badge {
    position: absolute;
    top: 0.85rem;
    left: 0.85rem;
    z-index: 3;
    padding: 0.35rem 0.7rem;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    color: var(--color-text-inverse);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    box-shadow: 0 4px 14px rgba(242, 5, 25, 0.35);
}

.product-gallery__badge--offer {
    text-transform: uppercase;
}

.product-gallery__zoom-hint {
    position: absolute;
    right: 0.75rem;
    bottom: 0.75rem;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-full);
    background: rgba(45, 55, 72, 0.72);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity var(--transition), transform var(--transition);
    pointer-events: none;
}

.produto-imagem-container:hover .product-gallery__zoom-hint {
    opacity: 1;
    transform: translateY(0);
}

.produto-imagem-zoom {
    cursor: zoom-in;
}

.produto-imagem {
    border-radius: 0;
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.2s ease-in-out;
    width: 100%;
    aspect-ratio: 1 / 1;
    max-height: 560px;
    object-fit: contain;
    object-position: center;
    display: block;
    transform-origin: center center;
    padding: 0.75rem;
}

.produto-imagem-zoom:hover .produto-imagem {
    transform: scale(1.05);
}

/* Miniaturas */
.thumb-56 {
    width: 60px;
    height: 60px;
    object-fit: contain;
    object-position: center;
    background: var(--color-border-subtle);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.produto-galeria-miniaturas .imagem-miniatura {
    width: 64px;
    height: 64px;
    object-fit: contain;
    object-position: center;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 4px;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    cursor: pointer;
    flex-shrink: 0;
}

.imagem-miniatura-ativa {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(242, 5, 25, 0.2);
    transform: translateY(-2px);
}

.produto-galeria-miniaturas .imagem-miniatura:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

#imagem-principal {
    transition: opacity 0.2s ease-in-out;
}

.produto-galeria-miniaturas {
    margin-top: 1rem;
}

/* Painel de compra */
.product-purchase-panel {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
    padding: 1.15rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-border-subtle) 100%);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

@media (min-width: 992px) {
    .product-purchase-panel {
        position: sticky;
        top: calc(var(--header-height, 72px) + 1rem);
        padding: 1.35rem 1.4rem;
    }
}

.product-purchase-panel__intro {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.product-category-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    align-self: flex-start;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    background: rgba(242, 5, 25, 0.1);
    border: 1px solid rgba(242, 5, 25, 0.25);
    color: var(--color-accent-hover);
    font-size: var(--text-xs);
    font-weight: 600;
    text-decoration: none;
    transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.product-category-pill:hover {
    background: rgba(242, 5, 25, 0.16);
    border-color: var(--color-accent);
    color: var(--color-accent-hover);
    transform: translateY(-1px);
}

.product-purchase {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.produto-titulo {
    color: var(--color-text);
    font-weight: 700;
    font-size: clamp(1.45rem, 2.8vw, 2rem);
    margin-bottom: 0;
    line-height: 1.2;
    letter-spacing: var(--tracking-tight);
}

.produto-descricao {
    color: var(--color-text-muted);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

/* Card de preço */
.product-price-card {
    padding: 1.1rem 1.2rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(242, 5, 25, 0.1) 0%, rgba(242, 5, 25, 0.02) 72%);
    border: 1px solid rgba(242, 5, 25, 0.28);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.product-price-card__savings {
    margin: 0.55rem 0 0;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-success);
}

/* Preço */
.price-block,
.produto-preco {
    margin: 0;
    padding: 0;
}

.price-block__label {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-accent);
    margin-bottom: 0.45rem;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-full);
    background: rgba(242, 5, 25, 0.14);
}

.price-block__current {
    display: block;
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
    text-shadow: none;
}

.price-block__consulta {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
}

.price-block__promo {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.35rem 0.75rem;
}

.price-block__was {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-decoration: line-through;
}

/* Estoque */
.product-purchase__stock {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.stock-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

.stock-badge--available {
    background: rgba(56, 161, 105, 0.14);
    color: var(--color-success);
    border: 1px solid rgba(56, 161, 105, 0.28);
}

.stock-badge--unavailable {
    background: rgba(229, 62, 62, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(229, 62, 62, 0.22);
}

.stock-badge--quote {
    background: var(--color-bg);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

/* Variações e grade */
.product-option-block {
    margin-top: 0.25rem;
}

.product-option-block__label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.variacoes-titulo {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
}

.variacoes-select-wrap {
    position: relative;
}

.variacoes-select {
    border-radius: var(--radius-sm);
    border-color: var(--color-border);
    font-size: var(--text-sm);
    padding: 0.55rem 2rem 0.55rem 0.75rem;
    min-height: 44px;
}

.variacoes-select-icon {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.variacoes-help {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-top: 0.35rem;
}

.grade-thumb-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.65rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition), transform var(--transition);
    cursor: pointer;
}

.grade-thumb-item:hover {
    border-color: rgba(242, 5, 25, 0.5);
    background: rgba(242, 5, 25, 0.05);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.grade-thumb-item.is-selected {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(242, 5, 25, 0.2), var(--shadow-sm);
    background: rgba(242, 5, 25, 0.1);
}

.grade-thumb-item__meta {
    min-width: 0;
    flex: 1;
}

.grade-thumb-item__label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.3;
}

.grade-thumb-item__price {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent);
    margin-top: 0.15rem;
}

.grade-thumb-item__stock {
    font-size: var(--text-xs);
    margin-top: 0.1rem;
}

.grade-thumb-item.is-selected .grade-thumb-item__label {
    color: var(--color-accent-hover);
}

.grade-thumb-item:disabled,
.grade-thumb-item.is-disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* Quantidade — mesmo padrão visual do carrinho */
.product-purchase__quantity .quantity-controls {
    justify-content: flex-start;
}

.product-purchase__quantity .quantity-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.product-purchase__quantity .quantity-btn:hover:not(:disabled) {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-text-inverse);
    transform: scale(1.04);
}

.product-purchase__quantity .quantity-input {
    width: 72px;
    height: 44px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
}

/* Ações */
.produto-acoes {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.25rem;
}

.product-purchase__cta {
    flex: 1 1 auto;
    min-width: 200px;
    border-radius: var(--radius-full) !important;
    font-size: var(--text-base) !important;
    min-height: 52px !important;
    box-shadow: var(--shadow-sm);
}

.product-purchase__cta:hover:not(:disabled):not(.disabled) {
    box-shadow: var(--shadow-success);
}

.product-purchase__back {
    border-radius: var(--radius-full);
    min-height: 52px;
}

@media (max-width: 991.98px) {
    .product-purchase__cta {
        width: 100%;
        min-width: 0;
    }
}

/* Compartilhamento do produto */
.product-share {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.product-share__label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0 0 0.65rem;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.product-share__buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.product-share__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    min-height: 38px;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.product-share__btn:hover {
    transform: translateY(-1px);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.product-share__btn--whatsapp:hover {
    border-color: #25d366;
    color: #128c7e;
}

.product-share__btn--facebook:hover {
    border-color: #1877f2;
    color: #1877f2;
}

.product-share__btn--twitter:hover {
    border-color: #0f1419;
    color: #0f1419;
}

.product-share__btn--copy.is-copied {
    border-color: var(--color-accent);
    background: rgba(242, 5, 25, 0.08);
    color: var(--color-accent);
}

.product-share__btn[hidden] {
    display: none !important;
}

@media (max-width: 575.98px) {
    .product-share__btn span {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    .product-share__btn {
        width: 42px;
        padding: 0;
    }
}

/* Barra de confiança */
.product-trust-bar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-top: 0.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.product-trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    text-align: center;
    padding: 0.55rem 0.35rem;
    border-radius: var(--radius-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border-subtle);
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--color-text-muted);
    line-height: 1.25;
}

.product-trust-item i {
    font-size: 1.1rem;
    color: var(--color-accent);
}

@media (max-width: 575.98px) {
    .product-trust-bar {
        grid-template-columns: 1fr;
    }

    .product-trust-item {
        flex-direction: row;
        justify-content: center;
        font-size: var(--text-xs);
    }
}

/* Cores/hover: design-system.css (CTA unificado Fase 13) */

.btn-outline-neutral {
    border: 1px solid var(--color-border);
    color: var(--color-text);
    background: transparent;
    border-radius: var(--radius-sm);
    min-height: 48px;
    padding: 0.75rem 1.25rem;
    font-weight: 600;
}

.btn-outline-neutral:hover {
    border-color: var(--color-brand);
    color: var(--color-brand);
    background: var(--color-border-subtle);
}

/* Accordion detalhes */
.product-details-accordion {
    margin-top: 2rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.product-details-accordion .accordion-item {
    border-color: var(--color-border);
    background: var(--color-surface);
}

.product-details-accordion .accordion-button {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    background: var(--color-border-subtle);
    box-shadow: none;
    padding: 1rem 1.15rem;
    gap: 0.5rem;
}

.product-details-accordion .accordion-button:not(.collapsed) {
    color: var(--color-text);
    background: rgba(242, 5, 25, 0.08);
    border-bottom: 1px solid rgba(242, 5, 25, 0.2);
}

.product-details-accordion .accordion-button::after {
    filter: none;
}

.product-details-accordion .accordion-body {
    padding: 1.15rem 1.25rem;
}

.product-specs-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border-subtle);
    font-size: var(--text-sm);
    color: var(--color-text);
}

.product-specs-list li:last-child {
    border-bottom: none;
}

.product-specs-list__label {
    display: inline-block;
    min-width: 7rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.product-details-extra {
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--color-text-muted);
}

/* Barra fixa mobile */
.product-sticky-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: calc(var(--z-header, 1030) - 1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1rem calc(0.85rem + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -10px 28px rgba(45, 55, 72, 0.12);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.product-sticky-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), rgba(242, 5, 25, 0.3));
}

.product-sticky-bar__info {
    flex: 1;
    min-width: 0;
}

.product-sticky-bar__price {
    font-size: var(--text-lg);
    font-weight: 800;
    color: var(--color-accent);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-variant-numeric: tabular-nums;
}

.product-sticky-bar__cta {
    flex: 1 1 auto;
    max-width: none;
    white-space: nowrap;
    border-radius: var(--radius-full) !important;
    min-height: 48px !important;
    font-weight: 700 !important;
}

/* Cores/hover: design-system.css (CTA unificado Fase 13) */

/* Produtos relacionados — paridade com vitrine */
.produtos-relacionados {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    margin-top: 2.5rem;
}

.produtos-relacionados__header {
    margin-bottom: 1.5rem;
}

.produtos-relacionados__grid {
    --product-card-gap: var(--product-card-gap-mobile);
    --bs-gutter-x: var(--product-card-gap);
    --bs-gutter-y: var(--product-card-gap);
}

@media (min-width: 768px) {
    .produtos-relacionados__grid {
        --product-card-gap: var(--product-card-gap-desktop);
    }
}

@media (max-width: 767.98px) {
    .produtos-relacionados__grid {
        flex-wrap: nowrap;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0.35rem;
        margin-bottom: -0.35rem;
    }

    .produtos-relacionados__grid > [class*="col-"] {
        flex: 0 0 78%;
        max-width: 78%;
        scroll-snap-align: start;
    }
}

.produtos-relacionados-titulo {
    color: var(--color-text);
    font-weight: 700;
    font-size: var(--text-xl);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.produtos-relacionados-titulo i {
    color: var(--color-brand);
}

.produto-relacionado {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.produto-relacionado:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.produto-relacionado-imagem.product-card__media {
    position: relative;
    display: block;
    padding: 1rem;
    background: var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
    text-decoration: none;
}

.produto-relacionado-imagem .product-card__badges {
    position: absolute;
    top: 0.65rem;
    left: 0.65rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    z-index: 2;
}

.produto-relacionado-imagem__img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    object-position: center;
    display: block;
}

.produto-relacionado-conteudo.product-info {
    padding: 1rem;
    gap: 0.5rem;
}

.produto-relacionado-titulo.product-name {
    min-height: 2.6rem;
}

.produto-relacionado-preco {
    margin-top: auto;
    padding-top: 0.25rem;
}

.produto-relacionado-preco .product-price,
.produto-relacionado-preco .product-price-promo {
    font-size: var(--text-xl);
}

.produto-indisponivel {
    opacity: 0.85;
}

/* Legado — manter compatibilidade mínima */
.produto-conteudo {
    padding-left: 0;
}

/* Badges compartilhados com vitrine (relacionados) */
.product-card__badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-radius: var(--radius-sm);
    line-height: 1.2;
}

.product-card__badge--offer {
    background: var(--color-accent);
    color: var(--color-text-inverse);
}

.product-card__badge--in {
    background: rgba(56, 161, 105, 0.15);
    color: var(--color-success);
}

.product-card__badge--out {
    background: rgba(229, 62, 62, 0.12);
    color: var(--color-danger);
}

/* Responsividade */
@media (max-width: 991.98px) {
    .product-page {
        padding-bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
    }

    .product-sticky-bar {
        z-index: var(--z-sticky, 1200);
    }
}

@media (max-width: 768px) {
    .produto-detalhes {
        padding: 1rem;
    }

    .product-purchase-panel {
        padding: 1rem;
    }

    .produto-imagem {
        aspect-ratio: 1 / 1;
        max-height: none;
    }

    .produto-galeria-miniaturas .imagem-miniatura,
    .thumb-56 {
        width: 56px;
        height: 56px;
    }
}

/* Tema Escuro */
body.dark-theme .page-produto {
    background:
        radial-gradient(ellipse 90% 50% at 50% -5%, rgba(242, 5, 25, 0.1), transparent 55%),
        var(--color-bg);
}

body.dark-theme .produto-detalhes {
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
    border-color: var(--color-border);
}

body.dark-theme .product-purchase-panel {
    background: linear-gradient(180deg, var(--color-surface) 0%, rgba(255, 255, 255, 0.03) 100%);
    border-color: var(--color-border);
}

body.dark-theme .product-price-card {
    background: linear-gradient(135deg, rgba(242, 5, 25, 0.14) 0%, rgba(242, 5, 25, 0.04) 72%);
    border-color: rgba(242, 5, 25, 0.3);
    box-shadow: none;
}

body.dark-theme .product-trust-item {
    background: var(--color-surface-elevated);
    border-color: var(--color-border);
}

body.dark-theme .product-share__btn {
    background: var(--color-surface-elevated);
    border-color: var(--color-border);
    color: var(--color-text);
}

body.dark-theme .product-sticky-bar {
    background: rgba(26, 32, 44, 0.94);
    border-top-color: var(--color-border);
    box-shadow: 0 -10px 28px rgba(0, 0, 0, 0.35);
}

body.dark-theme .produto-imagem-container {
    box-shadow: none;
    border-color: var(--color-border);
    background-color: var(--color-bg);
}

body.dark-theme .produto-titulo {
    color: #ffffff;
}

body.dark-theme .produto-descricao {
    color: #cccccc;
}

body.dark-theme .produto-info,
body.dark-theme .info-adicional {
    background-color: #3a3a3a;
    border: 1px solid #404040;
}

body.dark-theme .produto-info h5,
body.dark-theme .info-adicional h5 {
    color: #ffffff;
}

body.dark-theme .produto-info li,
body.dark-theme .info-adicional li {
    color: #cccccc;
}

body.dark-theme .produto-info li strong,
body.dark-theme .info-adicional li strong {
    color: #ffffff;
}

body.dark-theme .produtos-relacionados {
    background-color: transparent;
    box-shadow: none;
    border: none;
}

body.dark-theme .produto-relacionado {
    background-color: var(--color-surface);
    border-color: var(--color-border);
}

body.dark-theme .produto-relacionado-imagem.product-card__media {
    background-color: var(--color-bg);
}

body.dark-theme .product-category-pill {
    background: rgba(242, 5, 25, 0.14);
    border-color: rgba(242, 5, 25, 0.28);
    color: var(--color-accent-bright);
}

body.dark-theme .produto-galeria-miniaturas .imagem-miniatura {
    border-color: var(--color-border);
    background: var(--color-bg);
}

body.dark-theme .produto-galeria-miniaturas .imagem-miniatura:hover,
body.dark-theme .imagem-miniatura-ativa {
    border-color: var(--color-accent);
}

/* Legado — preços promocionais em blocos antigos */
.produto-preco .text-decoration-line-through {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-decoration: line-through;
}

.produto-preco .text-success {
    color: var(--color-accent) !important;
    font-weight: 700;
}