/* ========================================
   PRODUTO - E-COMMERCE MODERNO
   Cores Efcol | Design Limpo e Profissional
   ======================================== */

/* ========================================
   VARIÁVEIS CSS
   ======================================== */
:root {
    /* Cores Efcol */
    --efcol-red: #b21f2a;
    --efcol-red-dark: #8b1823;
    --efcol-red-light: #dc2626;
    --efcol-gold: #f6b964;
    
    /* Cores do Sistema */
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-border: #e5e7eb;
    --color-bg-gray: #f9fafb;
    --color-success: #10b981;
    --color-white: #ffffff;
    
    /* Espaçamento */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Transições */
    --transition: all 0.2s ease;
}

/* ========================================
   RESET E BASE
   ======================================== */
* {
    box-sizing: border-box;
}

.product-page {
    background: var(--color-white);
    padding: var(--spacing-lg) 0;
    min-height: 100vh;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
    
    .product-page {
        padding: var(--spacing-xl) 0;
    }
}

/* ========================================
   BANNER DE PROMOÇÃO
   ======================================== */
.promo-banner {
    background: linear-gradient(135deg, var(--efcol-red) 0%, var(--efcol-red-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-lg);
}

.promo-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    text-align: center;
}

.promo-content i {
    font-size: 1.25rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.promo-text {
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.promo-timer {
    font-family: 'Courier New', monospace;
    font-size: 1.125rem;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
}

@media (min-width: 768px) {
    .promo-text {
        font-size: 1rem;
    }
    
    .promo-timer {
        font-size: 1.25rem;
    }
}

/* ========================================
   GRID DO PRODUTO
   ======================================== */
.product-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 1024px) {
    .product-grid {
        grid-template-columns: 1fr 450px;
        gap: 3rem;
    }
}

/* ========================================
   GALERIA DE IMAGENS
   ======================================== */
.product-gallery {
    position: relative;
    width: 450px;
    height: 500px;
    margin: 0 auto;
}

.discount-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--efcol-red);
    color: var(--color-white);
    font-weight: 700;
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    z-index: 10;
    box-shadow: var(--shadow-lg);
}

.gallery-main {
    background: var(--color-bg-gray);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: var(--spacing-sm);
}

.thumb-item {
    background: var(--color-bg-gray);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    overflow: hidden;
    aspect-ratio: 1;
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.thumb-item:hover,
.thumb-item.active {
    border-color: var(--efcol-red);
}

@media (min-width: 768px) {
    .gallery-thumbs {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}

/* ========================================
   INFORMAÇÕES DO PRODUTO
   ======================================== */
.product-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.product-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin: 0;
}

@media (min-width: 768px) {
    .product-title {
        font-size: 1.875rem;
    }
}

/* ========================================
   PREÇOS
   ======================================== */
.product-pricing {
    padding: var(--spacing-lg);
    background: var(--color-bg-gray);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.price-wrapper {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.price-old {
    font-size: 1rem;
    color: var(--color-text-light);
    text-decoration: line-through;
}

.price-current {
    font-size: 2rem;
    font-weight: 800;
    color: var(--efcol-red);
    line-height: 1.2;
}

.price-installment {
    margin: var(--spacing-md) 0 0 0;
    color: var(--color-text-light);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.price-installment i {
    color: var(--color-success);
}

@media (min-width: 768px) {
    .price-old {
        font-size: 1.125rem;
    }
    
    .price-current {
        font-size: 2.5rem;
    }
}

/* ========================================
   MÉTODOS DE PAGAMENTO
   ======================================== */
.payment-methods {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.payment-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-text);
}

.payment-item i {
    color: var(--efcol-red);
}

.card-brands {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.card-brands img {
    height: 24px;
    width: auto;
    opacity: 0.7;
    transition: var(--transition);
}

.card-brands img:hover {
    opacity: 1;
}

/* ========================================
   QUANTIDADE
   ======================================== */
.quantity-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.quantity-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: fit-content;
}

.qty-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
}

.qty-btn:hover:not(:disabled) {
    border-color: var(--efcol-red);
    color: var(--efcol-red);
    background: rgba(178, 31, 42, 0.05);
}

.qty-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.qty-input {
    width: 60px;
    height: 40px;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
}

.qty-input:focus {
    outline: none;
    border-color: var(--efcol-red);
}

.stock-available {
    font-size: 0.875rem;
    color: var(--color-success);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.stock-available i {
    font-size: 0.75rem;
}

/* ========================================
   FRETE
   ======================================== */
.shipping-calc {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.shipping-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.shipping-label i {
    color: var(--efcol-red);
}

.shipping-input-group {
    display: flex;
    gap: var(--spacing-sm);
}

.shipping-input {
    flex: 1;
    height: 44px;
    padding: 0 var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

.shipping-input:focus {
    outline: none;
    border-color: var(--efcol-red);
}

.shipping-btn {
    height: 44px;
    padding: 0 var(--spacing-lg);
    background: var(--color-text);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.shipping-btn:hover {
    background: var(--color-text-light);
}

.shipping-free {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: #f0fdf4;
    border: 1px solid #86efac;
    border-radius: var(--radius-md);
    color: var(--color-success);
    font-weight: 600;
}

.shipping-free i {
    font-size: 1.25rem;
}

.response-frete {
    margin-top: var(--spacing-sm);
}

.response-frete .alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

/* ========================================
   BOTÃO COMPRAR
   ======================================== */
.btn-buy {
    width: 100%;
    height: 56px;
    background: var(--efcol-red);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.btn-buy:hover:not(:disabled) {
    background: var(--efcol-red-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-buy:active:not(:disabled) {
    transform: translateY(0);
}

.btn-buy:disabled {
    background: var(--color-border);
    color: var(--color-text-light);
    cursor: not-allowed;
    box-shadow: none;
}

.btn-buy i {
    font-size: 1.125rem;
}

/* ========================================
   DESCRIÇÃO DO PRODUTO
   ======================================== */
.product-description {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.description-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 var(--spacing-lg) 0;
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--efcol-red);
}

.description-content {
    color: var(--color-text);
    line-height: 1.7;
}

/* Estilos para conteúdo Summernote */
.description-content h1,
.description-content h2,
.description-content h3,
.description-content h4,
.description-content h5,
.description-content h6 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-weight: 700;
}

.description-content h1 { font-size: 2rem; }
.description-content h2 { font-size: 1.75rem; }
.description-content h3 { font-size: 1.5rem; }
.description-content h4 { font-size: 1.25rem; }
.description-content h5 { font-size: 1.125rem; }
.description-content h6 { font-size: 1rem; }

.description-content p {
    margin-bottom: var(--spacing-md);
}

.description-content ul,
.description-content ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-xl);
}

.description-content li {
    margin-bottom: var(--spacing-sm);
}

.description-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.description-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
}

.description-content table th,
.description-content table td {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    text-align: left;
}

.description-content table th {
    background: var(--color-bg-gray);
    font-weight: 600;
}

.description-content a {
    color: var(--efcol-red);
    text-decoration: none;
}

.description-content a:hover {
    text-decoration: underline;
}

.description-content blockquote {
    border-left: 4px solid var(--efcol-red);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    color: var(--color-text-light);
    font-style: italic;
}

/* ========================================
   RESPONSIVIDADE
   ======================================== */
@media (max-width: 767px) {
    .product-title {
        font-size: 1.25rem;
    }
    
    .price-current {
        font-size: 1.75rem;
    }
    
    .description-title {
        font-size: 1.25rem;
    }
    
    .product-description {
        padding: var(--spacing-md);
        padding-bottom: 150px;
    }

    .product-gallery {
        width: 100%;
        height: 100%;
    }
}

/* ========================================
   PRINT
   ======================================== */
@media print {
    .promo-banner,
    .btn-buy,
    .shipping-calc {
        display: none !important;
    }
    
    .product-page {
        background: white;
    }
    
    .product-description {
        border: 1px solid #000;
        box-shadow: none;
    }
}