/**
 * Product Card Styles - Unified Card System
 * Mobile-first CSS for ProductDetail components
 * Uses theme variables for B2B/B2C support
 */

/* ============================================
   Card Design System - Global Variables
   ============================================ */
:root {
    /* Product Card Variables */
    --product-card-spacing: 16px;
    --product-card-touch-target: 44px;
    --product-card-border-radius: 8px;
    --product-card-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --product-card-image-size: 300px;
    /* Card System Variables */
    --card-bg: #ffffff;
    --card-border: #e0e0e0;
    --card-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --card-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --card-shadow-lg: 0 6px 12px rgba(0, 0, 0, 0.15);
    --card-padding-mobile: 16px;
    --card-padding-tablet: 20px;
    --card-padding-desktop: 24px;
    --card-margin-bottom: 12px;
    --card-header-border: 1px solid #e0e0e0;
    --card-header-padding-bottom: 12px;
    --card-header-margin-bottom: 12px;
}

/* ============================================
   Base Card Class - Reusable
   ============================================ */
.card-base {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--product-card-border-radius);
    padding: var(--card-padding-mobile);
    margin-bottom: var(--card-margin-bottom);
    box-shadow: var(--card-shadow-sm);
    transition: box-shadow 0.3s ease;
}

    .card-base:hover {
        box-shadow: var(--card-shadow-md);
    }

.card-base__header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: var(--card-header-margin-bottom);
    padding-bottom: var(--card-header-padding-bottom);
    border-bottom: var(--card-header-border);
}

.card-base__icon {
    color: var(--brand-color);
    font-size: 20px;
}

.card-base__title {
    font-size: 16px;
    font-weight: 700;
    color: #333;
    margin: 0;
}

/* ============================================
   Product Detail Container
   ============================================ */
.product-detail-container {
    width: 100%;
    max-width: 100%;
}

.product-detail-container--loading,
.product-detail-container--error {
    padding: 2rem;
    text-align: center;
    box-sizing: border-box;
    overflow: visible;
}

.spinner-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left-color: var(--brand-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 0.8s linear infinite;
}

.error-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.error-icon {
    font-size: 3rem;
    color: #dc3545;
}

/* ============================================
   Product Header (Gallery + Price)
   ============================================ */
.product-header {
    /* Inherits card-base styles */
}

/* Gallery Section */
.product-card__gallery {
    position: relative;
    width: 100%;
    background-color: #f8f9fa;
    border-radius: var(--product-card-border-radius);
    overflow: hidden;
    margin-bottom: 1rem;
}

.product-card__gallery-container {
    position: relative;
    width: 100%;
    max-width: var(--product-card-image-size);
    aspect-ratio: 1 / 1;
    touch-action: pan-y pinch-zoom;
    user-select: none;
    -webkit-user-select: none;
    margin: 0 auto;
}

.product-card__gallery-item {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card__image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    cursor: pointer;
    transition: transform 0.2s ease;
}

    .product-card__image:active {
        transform: scale(0.98);
    }

.product-card__image--placeholder {
    opacity: 0.5;
}

/* Gallery Navigation Buttons */
.product-card__gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 3;
}

    .product-card__gallery-nav:hover:not(:disabled) {
        background-color: rgba(0, 0, 0, 0.7);
        transform: translateY(-50%) scale(1.1);
    }

    .product-card__gallery-nav:active:not(:disabled) {
        transform: translateY(-50%) scale(0.95);
    }

    .product-card__gallery-nav:disabled {
        opacity: 0.3;
        cursor: not-allowed;
    }

.product-card__gallery-nav--prev {
    left: 12px;
}

.product-card__gallery-nav--next {
    right: 12px;
}

.product-card__gallery-nav i {
    font-size: 1.25rem;
}

/* Gallery Indicators (Dots) */
.product-card__gallery-indicators {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 2;
}

.product-card__indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s ease;
}

    .product-card__indicator:hover {
        background-color: rgba(255, 255, 255, 0.7);
    }

.product-card__indicator--active {
    background-color: #fff;
    width: 24px;
    border-radius: 4px;
}

/* Price Section */
.product-card__price-section {
    margin-top: 16px;
}

.product-card__auth-required {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background-color: #f8f9fa;
    border-radius: var(--product-card-border-radius);
    color: #6c757d;
    font-size: 0.875rem;
}

    .product-card__auth-required i {
        font-size: 1.125rem;
    }

.product-card__price-container {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.product-card__price-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.product-card__price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #212529;
}

.product-card__price--discounted {
    color: var(--brand-color);
}

.product-card__price--original {
    font-size: 1rem;
    font-weight: 400;
    color: #6c757d;
}

.product-card__discount-badge {
    background-color: #dc3545;
    color: var(--brand-text-color);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 1.2rem;
    font-weight: 600;
    margin-left: auto;
}

.product-card__discount-badge-targeted-offer {
    background-color: #DAA520;
    color: var(--brand-text-color);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 1.2rem;
    font-weight: 600;
    margin-left: auto;
}

.product-card__ally-badge {
    color: var(--brand-text-color);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
}

/* ============================================
   Product Description
   ============================================ */
.product-description {
    /* Inherits card-base styles */
}

.product-card-header__title {
    font-size: 18px;
    font-weight: 700;
    color: #333;
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.product-card-header__description {
    font-size: 14px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* ============================================
   ProductCardInfoLabels
   ============================================ */
.product-card-info {
    /* Inherits card-base styles */
}

.product-card-info__labels {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.product-card-info__item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #666;
    width: 100%;
    justify-content: flex-start;
}

.product-card-info__icon {
    color: #333;
    font-size: 18px;
    min-width: 24px;
    text-align: center;
}

.product-card-info__label {
    font-weight: 400;
    color: #666;
    white-space: nowrap;
}

.product-card-info__value {
    font-weight: 700;
    color: #666;
    text-align: right;
}

/* Info Labels - Sold Out State */
.product-card-info__icon--out {
    color: #dc3545;
}

.product-card-info__label--out {
    color: #dc3545;
}

.product-card-info__value--out {
    font-weight: 700;
    color: #dc3545;
}

/* ============================================
   ProductCardSuggestedPrice
   ============================================ */
.product-card-suggested {
    margin-bottom: var(--card-margin-bottom);
    width: 100%;
    box-sizing: border-box;
    overflow: visible;
}

    .product-card-suggested .suggested-price-calculator {
        width: 100%;
        box-sizing: border-box;
    }

    .product-card-suggested input,
    .product-card-suggested button,
    .product-card-suggested .profit-margin-control__button {
        min-height: var(--product-card-touch-target);
        min-width: var(--product-card-touch-target);
    }

        .product-card-suggested input[type="number"],
        .product-card-suggested input[type="range"] {
            font-size: 1rem;
        }

/* ============================================
   Placeholders (Phase 2)
   ============================================ */
.suggested-promotion-placeholder,
.related-products-placeholder {
    /* Inherits card-base styles */
    text-align: center;
    color: #666;
    font-style: italic;
}

/* ============================================
   Responsive - Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
    :root {
        --product-card-image-size: 350px;
    }

    .card-base {
        padding: var(--card-padding-tablet);
    }

    .card-base__icon {
        font-size: 22px;
    }

    .card-base__title {
        font-size: 17px;
    }

    .product-card__gallery-container {
        aspect-ratio: 4 / 3;
    }

    .product-card-header__title {
        font-size: 20px;
    }

    .product-card-header__description {
        font-size: 15px;
    }

    .product-card-info__item {
        font-size: 15px;
    }

    .product-card-info__icon {
        font-size: 20px;
        min-width: 28px;
    }
}

/* ============================================
   Responsive - Desktop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
    :root {
        --product-card-image-size: 400px;
    }

    .card-base {
        padding: var(--card-padding-desktop);
    }

    .card-base__icon {
        font-size: 24px;
    }

    .card-base__title {
        font-size: 18px;
    }

    .product-card-header__title {
        font-size: 22px;
    }
}