/* ========================================
   INDEX.CSS - Don Oskar Chicharronería
   Diseño moderno, dinámico e intuitivo
   ======================================== */

:root {
    /* Colores principales */
    --primary: #EF4444;
    --primary-dark: #DC2626;
    --primary-light: #FEE2E2;
    --secondary: #10B981;
    --secondary-dark: #059669;
    --secondary-light: #D1FAE5;
    --accent: #F59E0B;
    --accent-dark: #D97706;
    --accent-light: #FEF3C7;
    
    /* Colores neutros */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    --gradient-hero: linear-gradient(135deg, #FFF7ED 0%, #FED7AA 50%, #FDBA74 100%);
    
    /* 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), 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);
    --shadow-glow: 0 0 20px rgba(239, 68, 68, 0.3);
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Tipografía */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', var(--font-sans);
    
    /* Transiciones */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
    
    /* Tamaños */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    --border-radius-full: 9999px;
}

/* ========================================
   Reset y base
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--gradient-hero);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   Loading Overlay
   ======================================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(254, 215, 170, 0.95) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(10px);
}

.loading-spinner {
    text-align: center;
    animation: fadeIn 0.5s ease-out;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--primary-light);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

.loading-text {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========================================
   Flash Messages
   ======================================== */
.flash-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    font-weight: 500;
    box-shadow: var(--shadow-md);
    animation: slideDown 0.5s ease-out;
}

.flash-message.success {
    background: var(--secondary-light);
    color: var(--secondary-dark);
    border-left: 4px solid var(--secondary);
}

.flash-message.error {
    background: var(--primary-light);
    color: var(--primary-dark);
    border-left: 4px solid var(--primary);
}

.flash-message.info {
    background: var(--accent-light);
    color: var(--accent-dark);
    border-left: 4px solid var(--accent);
}

.flash-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    margin-left: auto;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
}

.flash-close:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* ========================================
   Hero Section
   ======================================== */
.hero-section {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-2xl) 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    min-height: 500px;
}

.hero-text {
    animation: fadeInLeft 0.8s ease-out;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
}

.title-main {
    display: block;
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
}

.title-accent {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: var(--spacing-sm);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--spacing-xs);
}

.hero-image {
    animation: fadeInRight 0.8s ease-out;
}

.hero-image-container {
    position: relative;
    border-radius: var(--border-radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: var(--transition-slow);
}

.hero-image-container:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg) scale(1.02);
}

.hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.hero-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0,0,0,0.1) 0%, transparent 100%);
}

.floating-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    color: var(--accent-dark);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* ========================================
   Search Section
   ======================================== */
.search-section {
    background: var(--white);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.search-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.search-box {
    position: relative;
}

.search-form {
    position: relative;
}

.search-input-group {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--gray-50);
    border: 2px solid transparent;
    border-radius: var(--border-radius-full);
    transition: var(--transition-normal);
    overflow: hidden;
}

.search-input-group:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-light);
    z-index: 2;
    font-size: 1.1rem;
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3rem;
    border: none;
    background: transparent;
    font-size: 1rem;
    color: var(--text-primary);
    outline: none;
}

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

.search-button {
    background: var(--gradient-primary);
    border: none;
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition-normal);
    white-space: nowrap;
}

.search-button:hover {
    background: var(--gradient-accent);
    transform: translateX(2px);
}

.branch-selector {
    position: relative;
}

.branch-input-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.branch-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.branch-select {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    background: var(--white);
    font-size: 0.95rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-normal);
}

.branch-select:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Branch Info */
.branch-info {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
}

.branch-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.branch-main-info {
    flex: 1;
}

.branch-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.branch-address {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.branch-schedule {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.9rem;
}

.branch-status {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-full);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.branch-status.open {
    background: var(--secondary-light);
    color: var(--secondary-dark);
}

.branch-status.closed {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.branch-discount {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.discount-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-secondary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-weight: 700;
    font-size: 0.9rem;
    animation: pulse 2s infinite;
}

.discount-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Categories Grid - MEJORADO
   ======================================== */
.categories-section {
    margin-bottom: var(--spacing-2xl);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.category-card {
    position: relative;
    background: var(--white);
    border-radius: var(--border-radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    text-decoration: none;
    color: inherit;
    height: 340px; /* Altura fija aumentada */
    display: flex;
    flex-direction: column;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.category-image-container {
    position: relative;
    height: 240px; /* Imagen más grande - 70% de la altura */
    overflow: hidden;
    flex-shrink: 0;
}

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

.category-card:hover .category-image {
    transform: scale(1.08);
}

.category-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0,0,0,0.1) 0%, transparent 100%);
}

.category-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
    position: relative;
    justify-content: space-between;
}

.category-icon {
    position: absolute;
    top: -25px;
    left: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
}

.category-title {
    font-family: var(--font-heading);
    font-size: 1.25rem; /* Tamaño reducido */
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--spacing-lg) 0 var(--spacing-xs);
    line-height: 1.3;
}

.category-description {
    color: var(--text-secondary);
    font-size: 0.9rem; /* Tamaño reducido */
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.category-arrow {
    align-self: flex-end;
    color: var(--primary);
    font-size: 1.25rem;
    transition: var(--transition-normal);
    margin-top: auto;
}

.category-card:hover .category-arrow {
    transform: translateX(5px);
}

/* ========================================
   Products Grid - MEJORADO CON ALTURA UNIFORME
   ======================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background: var(--white);
    border-radius: var(--border-radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 520px; /* ✅ ALTURA FIJA PARA UNIFORMIDAD */
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-card.featured {
    border: 2px solid var(--accent);
    position: relative;
}

.product-card.featured::before {
    content: 'Destacado';
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--gradient-accent);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    z-index: 2;
}

.product-image-container {
    position: relative;
    height: 220px; /* Altura fija para imagen */
    overflow: hidden;
    flex-shrink: 0;
}

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

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

.product-badges {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 2;
}

.price-badge {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: var(--shadow-md);
}

.offer-badge {
    background: var(--gradient-secondary);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-weight: 700;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    animation: pulse 2s infinite;
}

.stock-badge {
    background: var(--gray-100);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.stock-badge.good { background: var(--secondary-light); color: var(--secondary-dark); }
.stock-badge.low { background: var(--accent-light); color: var(--accent-dark); }
.stock-badge.out { background: var(--primary-light); color: var(--primary-dark); }

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.view-details {
    background: var(--white);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-full);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transform: translateY(20px);
    transition: var(--transition-normal);
}

.product-card:hover .view-details {
    transform: translateY(0);
}

.view-details:hover {
    background: var(--primary);
    color: var(--white);
}

.product-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex: 1; /* ✅ OCUPA ESPACIO DISPONIBLE */
    min-height: 0; /* ✅ PERMITE FLEXBOX FUNCIONAR CORRECTAMENTE */
}

.product-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.product-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    flex: 1; /* ✅ OCUPA ESPACIO DISPONIBLE */
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3; /* ✅ LIMITA A 3 LÍNEAS */
    -webkit-box-orient: vertical;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-shrink: 0; /* ✅ NO SE COMPRIME */
}

.stars {
    display: flex;
    gap: 2px;
}

.stars i {
    color: var(--gray-200);
    font-size: 0.9rem;
}

.stars i.active {
    color: var(--accent);
}

.rating-text {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ✅ BOTÓN SIEMPRE AL FINAL - ALINEACIÓN HORIZONTAL PERFECTA */
.add-to-cart-form {
    margin-top: auto; /* ✅ EMPUJA AL FINAL */
    flex-shrink: 0; /* ✅ NO SE COMPRIME */
}

.add-to-cart-btn {
    width: 100%;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-height: 48px; /* ✅ ALTURA MÍNIMA FIJA */
}

.add-to-cart-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-slow);
}

.add-to-cart-btn:hover::before {
    left: 100%;
}

.add-to-cart-btn:hover {
    background: var(--gradient-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.add-to-cart-btn:active {
    transform: translateY(0);
}

.add-to-cart-btn.disabled {
    background: var(--gray-200);
    color: var(--text-light);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.add-to-cart-btn.disabled:hover {
    background: var(--gray-200);
    transform: none;
}

/* ========================================
   Featured Products Swiper
   ======================================== */
.featured-products-swiper {
    padding-bottom: var(--spacing-xl);
}

.swiper-pagination {
    bottom: 0 !important;
}

.swiper-pagination-bullet {
    background: var(--primary);
    opacity: 0.3;
}

.swiper-pagination-bullet-active {
    opacity: 1;
}

.swiper-button-next,
.swiper-button-prev {
    color: var(--primary);
    background: var(--white);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background: var(--primary);
    color: var(--white);
}

.swiper-button-next::after,
.swiper-button-prev::after {
    font-size: 18px;
    font-weight: 700;
}

/* ========================================
   Search Results & No Results
   ======================================== */
.search-results-section {
    margin-bottom: var(--spacing-2xl);
}

.clear-search {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-normal);
}

.clear-search:hover {
    color: var(--primary);
}

.no-results,
.no-products {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--white);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-md);
}

.no-results-icon,
.no-products-icon {
    font-size: 4rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.no-results-title,
.no-products-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.no-results-text,
.no-products-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.no-results-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-full);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
}

.no-results-button:hover {
    background: var(--gradient-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ========================================
   Back to Top Button
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    z-index: 1000;
}

.back-to-top:hover {
    background: var(--gradient-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.back-to-top.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ========================================
   Responsive Design - MEJORADO
   ======================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .title-main {
        font-size: 3rem;
    }
    
    .title-accent {
        font-size: 2rem;
    }
    
    .search-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .branch-details {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .category-card {
        height: 320px;
    }
    
    .category-image-container {
        height: 220px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-section {
        padding: var(--spacing-xl) 0;
    }
    
    .title-main {
        font-size: 2.5rem;
    }
    
    .title-accent {
        font-size: 1.8rem;
    }
    
    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .section-title {
        font-size: 2rem;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .search-section {
        padding: var(--spacing-lg);
    }
    
    .search-button-text {
        display: none;
    }
    
    .branch-input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    /* ✅ CATEGORÍAS MÓVIL - DISEÑO COMPACTO TIPO ICONO */
    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: var(--spacing-md);
    }
    
    .category-card {
        height: 180px; /* ✅ MÁS COMPACTO */
        border-radius: var(--border-radius-xl);
    }
    
    .category-image-container {
        height: 120px; /* ✅ IMAGEN MÁS PEQUEÑA */
    }
    
    .category-content {
        padding: var(--spacing-md);
        text-align: center;
    }
    
    .category-icon {
        top: -20px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .category-title {
        font-size: 1rem; /* ✅ MÁS PEQUEÑO */
        margin: var(--spacing-md) 0 0;
        line-height: 1.2;
    }
    
    /* ✅ OCULTAR DESCRIPCIÓN EN MÓVIL */
    .category-description {
        display: none;
    }
    
    .category-arrow {
        display: none; /* ✅ OCULTAR FLECHA EN MÓVIL */
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .product-card {
        height: 480px; /* ✅ AJUSTAR ALTURA PARA MÓVIL */
    }
    
    .hero-image-container {
        transform: none;
    }
    
    .hero-image-container:hover {
        transform: scale(1.02);
    }
}

@media (max-width: 480px) {
    .title-main {
        font-size: 2rem;
    }
    
    .title-accent {
        font-size: 1.5rem;
    }
    
    .hero-stats {
        gap: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-card {
        height: 460px; /* ✅ AJUSTE FINAL PARA MÓVILES PEQUEÑOS */
    }
    
    .search-section {
        padding: var(--spacing-md);
    }
    
    .back-to-top {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
        width: 45px;
        height: 45px;
    }
    
    /* ✅ CATEGORÍAS EXTRA PEQUEÑAS - GRID 2 COLUMNAS */
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .category-card {
        height: 160px;
    }
    
    .category-image-container {
        height: 100px;
    }
    
    .category-title {
        font-size: 0.9rem;
    }
    
    .category-content {
        padding: var(--spacing-sm);
    }
    
    .category-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
        top: -17px;
    }
}

/* ========================================
   High Contrast Mode
   ======================================== */
@media (prefers-contrast: high) {
    :root {
        --primary: #CC0000;
        --secondary: #008800;
        --text-primary: #000000;
        --text-secondary: #333333;
    }
}

/* ========================================
   Reduced Motion
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero-image-container {
        transform: none;
    }
    
    .floating-badge {
        animation: none;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .search-section,
    .back-to-top,
    .loading-overlay {
        display: none;
    }
    
    .hero-section {
        page-break-after: always;
    }
    
    .product-card,
    .category-card {
        break-inside: avoid;
    }
}