/**
 * Estilos de la Página de Inicio
 * Optics Sterling LLC
 */

/* ============================================
   SLIDER / HERO
   ============================================ */
.slider-section {
    margin-top: 80px;
    position: relative;
    overflow: hidden;
    height: 85vh;
    min-height: 500px;
    max-height: 900px;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, transform 0.8s ease;
    transform: scale(1.05);
}

.slide.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.slide-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.3) 100%);
}

.slide-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    height: 100%;
    padding: 2rem 0;
}

.slide-content .container {
    width: 100%;
}

.slide-content h1 {
    color: var(--color-white);
    font-size: 4rem;
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    line-height: 1.1;
    animation: slideUp 0.8s ease forwards;
    opacity: 0;
}

.slide-content p {
    color: rgba(255,255,255,0.85);
    font-size: 1.25rem;
    max-width: 550px;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    animation: slideUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.slide-content .btn-primary {
    animation: slideUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.slide-content .btn-primary i {
    transition: var(--transition-normal);
}

.slide-content .btn-primary:hover i {
    transform: translateX(4px);
}

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

/* Controles del slider */
.slider-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    z-index: 5;
    padding: 0 1.5rem;
    pointer-events: none;
}

.slider-btn {
    pointer-events: all;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    color: var(--color-white);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: rgba(255,255,255,0.35);
    transform: scale(1.1);
}

/* Indicadores */
.slider-dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.75rem;
    z-index: 5;
}

.slider-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition-normal);
}

.slider-dots .dot.active {
    background: var(--color-secondary);
    transform: scale(1.2);
}

.slider-dots .dot:hover {
    background: rgba(255,255,255,0.7);
}

/* ============================================
   SERVICIOS
   ============================================ */
.services-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-gray-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--color-gray-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: var(--transition-normal);
}

.service-card:hover .service-icon {
    background: var(--color-primary);
    color: var(--color-white);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.service-card p {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-md);
}

.service-link {
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.service-link:hover {
    color: var(--color-secondary);
}

.service-link i {
    transition: var(--transition-normal);
}

.service-link:hover i {
    transform: translateX(4px);
}

/* ============================================
   PRODUCTOS
   ============================================ */
.products-section {
    padding: var(--spacing-3xl) 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

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

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

.product-image {
    position: relative;
    padding-top: 75%;
    background: var(--color-gray-100);
    overflow: hidden;
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

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

.product-actions {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

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

.btn-view {
    padding: 0.75rem 1.5rem;
    background: var(--color-white);
    color: var(--color-gray-900);
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
    transition: var(--transition-normal);
}

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

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

.product-info h3 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0.25rem;
}

.product-price {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.btn-add {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--color-secondary);
    color: var(--color-white);
    border-radius: var(--border-radius-sm);
    font-weight: var(--font-weight-medium);
    font-size: 0.875rem;
    transition: var(--transition-normal);
}

.btn-add:hover {
    background-color: var(--color-secondary-dark);
    color: var(--color-white);
}

.btn-add i {
    transition: var(--transition-normal);
}

.btn-add:hover i {
    transform: translateX(4px);
}

.products-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ============================================
   WHY CHOOSE US
   ============================================ */
.why-choose-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-gray-50);
}

.why-choose-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.why-choose-content .section-tag {
    margin-bottom: var(--spacing-sm);
}

.why-choose-content h2 {
    margin-bottom: var(--spacing-md);
}

.why-choose-content > p {
    margin-bottom: var(--spacing-lg);
    font-size: 1.0625rem;
}

.why-choose-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.why-choose-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.why-choose-list li i {
    color: var(--color-secondary);
    font-size: 1.25rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.why-choose-list li span {
    color: var(--color-gray-700);
}

.why-choose-image {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.why-choose-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 991px) {
    .slider-section {
        height: 70vh;
        min-height: 400px;
    }
    
    .slide-content h1 {
        font-size: 2.5rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .why-choose-grid {
        grid-template-columns: 1fr;
    }
    
    .why-choose-image {
        order: -1;
    }
    
    .why-choose-image img {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .slider-section {
        height: 60vh;
        min-height: 350px;
        margin-top: 70px;
    }
    
    .slide-content h1 {
        font-size: 2rem;
    }
    
    .slide-content p {
        font-size: 1rem;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .slider-controls {
        padding: 0 0.75rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .products-section {
        padding: var(--spacing-xl) 0;
    }
    
    .services-section {
        padding: var(--spacing-xl) 0;
    }
    
    .why-choose-section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .slide-content h1 {
        font-size: 1.5rem;
    }
    
    .slide-content p {
        font-size: 0.875rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-sm);
    }
    
    .product-info h3 {
        font-size: 0.875rem;
    }
    
    .product-price {
        font-size: 1rem;
    }
    
    .btn-add {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
}