:root {
    --primary-color: #4a89dc;
    --primary-light: #5d9cec;
    --primary-dark: #3b7dd8;
    --white: #ffffff;
    --light-gray: #f5f7fa;
    --medium-gray: #e6e9ed;
    --dark-gray: #656d78;
    --text-color: #434a54;
    --success-color: #8cc152;
    --warning-color: #f6bb42;
    --danger-color: #da4453;
    
    --font-main: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-headings: 'Montserrat', 'Segoe UI', sans-serif;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--light-gray);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header */
.main-header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 8px 0;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
}

.contact-info a {
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 5px;
}

.user-actions {
    display: flex;
    gap: 15px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.logo-text span {
    color: var(--dark-gray);
    font-weight: 400;
}

/* Barra de búsqueda */
.search-container {
    flex-grow: 1;
    margin: 0 30px;
    position: relative;
}

.search-form {
    display: flex;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid var(--medium-gray);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: var(--transition);
    padding-right: 45px;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(74, 137, 220, 0.2);
}

.search-btn {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 45px;
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

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

/* Navegación principal */
.main-nav {
    background-color: var(--white);
    border-top: 1px solid var(--medium-gray);
}

.nav-list {
    display: flex;
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 15px 20px;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: var(--light-gray);
}

.nav-item.active .nav-link {
    color: var(--primary-color);
    font-weight: 600;
}

/* Hero Banner */
.hero-banner {
    position: relative;
    height: 400px;
    overflow: hidden;
    margin-bottom: 30px;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 0 5%;
    background: linear-gradient(90deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.2) 100%);
    color: var(--white);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    font-family: var(--font-headings);
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 25px;
    max-width: 600px;
}

.hero-btn {
    display: inline-block;
    padding: 12px 25px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: var(--transition);
}

.hero-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--white);
}

/* Secciones */
.section {
    padding: 40px 0;
}

.section-title {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--primary-color);
    font-family: var(--font-headings);
    position: relative;
    padding-bottom: 10px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-light);
}

/* Tarjetas de categorías */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.category-card {
    background-color: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
}

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

.category-img-container {
    height: 150px;
    overflow: hidden;
}

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

.category-card:hover .category-img {
    transform: scale(1.05);
}

.category-info {
    padding: 15px;
}

.category-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-color);
}

.category-count {
    font-size: 0.9rem;
    color: var(--dark-gray);
}

/* Tarjetas de productos */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 25px;
}

.product-card {
    background-color: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

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

.product-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: var(--danger-color);
    color: var(--white);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 1;
}

.product-image-container {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    background-color: var(--light-gray);
    transition: var(--transition);
}

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

.quick-view-btn {
    position: absolute;
    bottom: 10px;
    right: 10px;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
}

.product-card:hover .quick-view-btn {
    opacity: 1;
    transform: translateY(0);
}

.quick-view-btn:hover {
    background-color: var(--primary-dark);
}

.product-info {
    padding: 15px;
}

.product-title {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 5px;
    color: var(--text-color);
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.8em;
    line-height: 1.4em;
}

.product-brand {
    font-size: 0.85rem;
    color: var(--dark-gray);
    margin-bottom: 10px;
}

.product-pricing {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.current-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.original-price {
    font-size: 0.9rem;
    color: var(--dark-gray);
    text-decoration: line-through;
}

.add-to-cart-btn {
    width: 100%;
    padding: 8px 0;
    background-color: var(--primary-light);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
}

.add-to-cart-btn:hover {
    background-color: var(--primary-color);
}

/* Footer */
.main-footer {
    background-color: var(--white);
    padding: 50px 0 20px;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-family: var(--font-headings);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--text-color);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: var(--primary-light);
    color: var(--white);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--medium-gray);
    color: var(--dark-gray);
    font-size: 0.9rem;
}

/* Carrito de compras */
.cart-btn {
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: 500;
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--danger-color);
    color: var(--white);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
}

/* Barra de búsqueda activa */
.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--white);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    box-shadow: var(--shadow-md);
    z-index: 100;
    display: none;
    max-height: 400px;
    overflow-y: auto;
}

.search-result-item {
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: var(--transition);
}

.search-result-item:hover {
    background-color: var(--light-gray);
}

.search-result-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    background-color: var(--light-gray);
    border-radius: var(--radius-sm);
}

.search-result-info {
    flex-grow: 1;
}

.search-result-name {
    font-weight: 500;
    margin-bottom: 3px;
}

.search-result-price {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.no-results {
    padding: 15px;
    text-align: center;
    color: var(--dark-gray);
}

/* Notificación de carrito */
.cart-notification {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--success-color);
    color: white;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 3000;
    opacity: 0;
    transition: all 0.3s ease;
}

.cart-notification.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.cart-notification i {
    font-size: 1.2rem;
}

/* Responsive */
@media (max-width: 992px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .search-container {
        margin: 15px 0;
        width: 100%;
    }
    
    .nav-list {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .hero-banner {
        height: 300px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 576px) {
    .contact-info {
        flex-direction: column;
        gap: 5px;
    }
    
    .hero-banner {
        height: 250px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}