/**
 * Card Components
 * 
 * Unified card styles following design system tokens
 * BEM naming convention for maintainability
 */

/* Base Card */
.card {
    background: var(--color-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition-base);
    position: relative;
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* Ensure existing product cards also use card styles */
.product-card {
    /* Inherit from .card if exists, or add card base styles */
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Enhance existing card animations */
.category-card,
.product-card,
.special-card,
.step-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.category-card:nth-child(1) { animation-delay: 0.1s; }
.category-card:nth-child(2) { animation-delay: 0.15s; }
.category-card:nth-child(3) { animation-delay: 0.2s; }
.category-card:nth-child(4) { animation-delay: 0.25s; }
.category-card:nth-child(5) { animation-delay: 0.3s; }
.category-card:nth-child(6) { animation-delay: 0.35s; }
.category-card:nth-child(7) { animation-delay: 0.4s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Product Card Variant */
.card--product {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card--product:hover {
    transform: translateY(-4px) translateZ(0);
    box-shadow: var(--shadow-lg);
}

/* Smooth animations for cards */
.card {
    transform: translateZ(0);
    backface-visibility: hidden;
    will-change: transform, box-shadow;
}

/* Enhanced hover effects with smoother transitions */
.product-card:hover {
    transform: translateY(-4px) translateZ(0);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.product-card {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

/* Product card image hover effect */
.product-card:hover .product-image {
    transform: scale(1.05);
    transition: transform var(--transition-slow);
}

/* Card Header */
.card__header {
    padding: var(--spacing-4);
    border-bottom: var(--border-width-thin) solid var(--color-border-light);
}

.card__header--no-border {
    border-bottom: none;
}

/* Card Body */
.card__body {
    padding: var(--spacing-4);
    flex: 1;
}

.card__body--compact {
    padding: var(--spacing-3);
}

/* Card Footer */
.card__footer {
    padding: var(--spacing-4);
    border-top: var(--border-width-thin) solid var(--color-border-light);
    background: var(--color-gray-50);
}

.card__footer--no-border {
    border-top: none;
    background: transparent;
}

/* Card Image */
.card__image {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.card__image-container {
    position: relative;
    overflow: hidden;
    background: var(--color-gray-100);
}

.card__image-container::after {
    content: '';
    display: block;
    padding-bottom: 75%; /* 4:3 aspect ratio */
}

.card__image-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Card Title */
.card__title {
    font-family: var(--font-family-base);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    line-height: var(--line-height-tight);
    margin: 0 0 var(--spacing-2) 0;
}

.card__title--large {
    font-size: var(--font-size-xl);
}

/* Card Description */
.card__description {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin: 0;
}

/* Card Meta */
.card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    font-family: var(--font-family-base);
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
    margin-top: var(--spacing-2);
}

/* Card Actions */
.card__actions {
    display: flex;
    gap: var(--spacing-2);
    margin-top: var(--spacing-4);
}

.card__actions--spaced {
    justify-content: space-between;
    align-items: center;
}

/* Card with Gradient Border */
.card--gradient-border {
    position: relative;
    background: var(--color-light);
}

.card--gradient-border::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

/* Card Loading State */
.card--loading {
    opacity: 0.6;
    pointer-events: none;
}

.card--loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: card-shimmer 1.5s infinite;
}

@keyframes card-shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .card {
        transition: none;
    }
    
    .card:hover {
        transform: none;
    }
    
    .card--loading::after {
        animation: none;
    }
}