/* =====================================================
   MiTienda 4Life - Modern Minimalist Styles
   ===================================================== */

/* CSS Variables */
:root {
    /* Primary Colors */
    --primary: #0D9488;
    --primary-light: #14B8A6;
    --primary-dark: #0F766E;
    
    /* Accent Colors */
    --accent-gold: #F59E0B;
    --accent-purple: #8B5CF6;
    --accent-pink: #EC4899;
    --accent-green: #10B981;
    
    /* Neutrals */
    --bg-primary: #FAFAFA;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F3F4F6;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --text-muted: #9CA3AF;
    --border-color: #E5E7EB;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* =====================================================
   Header
   ===================================================== */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-weight: 400;
}

.logo-text strong {
    font-weight: 700;
}

/* Country Selector */
.country-selector {
    position: relative;
}

.country-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-full);
    padding: var(--spacing-xs) var(--spacing-md);
    color: white;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background var(--transition-fast);
}

.country-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

.country-flag {
    font-size: 1.25rem;
}

.chevron {
    transition: transform var(--transition-fast);
}

.country-selector.open .chevron {
    transform: rotate(180deg);
}

.country-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-sm));
    right: 0;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    overflow: hidden;
}

.country-selector.open .country-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.country-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-size: 0.9375rem;
}

.country-option:hover {
    background: var(--bg-tertiary);
}

.country-option.active {
    background: var(--primary);
    color: white;
}

.country-option-flag {
    font-size: 1.5rem;
}

/* =====================================================
   Search
   ===================================================== */
.search-container {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.search-wrapper {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-muted);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) calc(var(--spacing-md) * 3);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--bg-tertiary);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-clear {
    position: absolute;
    right: var(--spacing-md);
    background: var(--text-muted);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    width: 20px;
    height: 20px;
    font-size: 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}

.search-clear:hover {
    background: var(--text-secondary);
}

/* =====================================================
   Categories Navigation
   ===================================================== */
.categories-nav {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.categories-nav::-webkit-scrollbar {
    display: none;
}

.categories-scroll {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    min-width: max-content;
}

.category-pill {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.category-pill:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.category-pill.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.category-icon {
    font-size: 1rem;
}

/* =====================================================
   Country Banner
   ===================================================== */
.country-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(90deg, var(--bg-tertiary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.banner-flag {
    font-size: 1.25rem;
}

/* =====================================================
   Main Content
   ===================================================== */
.main-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    width: 100%;
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

/* =====================================================
   Products Grid
   ===================================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Product Card */
.product-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.product-image-wrapper {
    position: relative;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

.product-card:hover .product-image {
    transform: scale(1.05);
}

.product-placeholder {
    font-size: 4rem;
    opacity: 0.3;
}

.product-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--accent-gold);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.product-category-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.product-content {
    padding: var(--spacing-md);
}

.product-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-code {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.product-prices {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.price-label {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.price-value {
    font-weight: 600;
    color: var(--text-primary);
}

.price-value.highlight {
    color: var(--primary);
    font-size: 1.125rem;
}

.life-points {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px dashed var(--border-color);
    font-size: 0.8rem;
    color: var(--accent-purple);
}

/* =====================================================
   Footer
   ===================================================== */
.footer {
    background: var(--text-primary);
    color: var(--text-muted);
    text-align: center;
    padding: var(--spacing-lg);
    font-size: 0.875rem;
}

.footer-note {
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
    opacity: 0.7;
}

/* =====================================================
   Modal
   ===================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9);
    transition: transform var(--transition-fast);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-full);
    width: 32px;
    height: 32px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: background var(--transition-fast);
}

.modal-close:hover {
    background: var(--border-color);
}

.modal-image {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: contain;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
    padding: var(--spacing-lg);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.modal-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.modal-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.modal-prices {
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
}

.modal-price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.modal-price-row:last-child {
    border-bottom: none;
}

.modal-price-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-price-icon {
    font-size: 1.25rem;
}

.modal-price-value {
    font-weight: 600;
    font-size: 1.125rem;
}

.modal-sale-price {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-lg);
    color: white;
    text-align: center;
}

.modal-sale-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

.modal-sale-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: var(--spacing-xs);
}

.modal-lp {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-lg);
    color: var(--accent-purple);
    font-weight: 600;
}

/* =====================================================
   Responsive Design
   ===================================================== */
@media (max-width: 768px) {
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .logo {
        font-size: 1rem;
    }
    
    .logo-icon {
        font-size: 1.25rem;
    }
    
    .search-container,
    .categories-scroll,
    .main-content {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: var(--spacing-md);
    }
    
    .product-name {
        font-size: 0.875rem;
    }
    
    .price-row {
        font-size: 0.8rem;
    }
    
    .modal {
        max-height: 100vh;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        margin-top: auto;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .country-name {
        display: none;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.product-card {
    animation: fadeIn 0.3s ease forwards;
}

.product-card:nth-child(1) { animation-delay: 0.05s; }
.product-card:nth-child(2) { animation-delay: 0.1s; }
.product-card:nth-child(3) { animation-delay: 0.15s; }
.product-card:nth-child(4) { animation-delay: 0.2s; }
.product-card:nth-child(5) { animation-delay: 0.25s; }
.product-card:nth-child(6) { animation-delay: 0.3s; }