/* ================= ESTILOS ESPECÍFICOS PARA FOTOVOLTAICA ================= */

/* Variables locales para fotovoltaica */
:root {
    --fotovoltaica-primary: #F58220;
    --fotovoltaica-secondary: #000000;
    --fotovoltaica-accent: #FFC107;
    --fotovoltaica-text: #000000;
    --fotovoltaica-text-light: #4D4D4D;
    --fotovoltaica-background: #FFFFFF;
    --fotovoltaica-background-alt: #f9f9f9;
    --fotovoltaica-border: #C4C4C4;
    --fotovoltaica-white: #FFFFFF;
    --fotovoltaica-shadow-light: 0 5px 15px rgba(0,0,0,0.1);
    --fotovoltaica-shadow-medium: 0 8px 25px rgba(0,0,0,0.15);
    --fotovoltaica-shadow-heavy: 0 10px 30px rgba(0,0,0,0.2);
    --fotovoltaica-border-radius: 10px;
    --fotovoltaica-transition: all 0.3s ease;
}

/* Hero Section */
.hero-fotovoltaica {
    height: 60vh;
    background: linear-gradient(135deg, rgba(245, 130, 32, 0.85), rgba(255, 193, 7, 0.8)),
                url('https://images.unsplash.com/photo-1509391366360-2e959784a276?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--fotovoltaica-white);
    margin-top: 80px;
    position: relative;
}

.hero-fotovoltaica .hero-content {
    max-width: 800px;
    padding: 0 20px;
    z-index: 2;
}

.hero-fotovoltaica h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

.hero-fotovoltaica p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}

/* Descripción del Producto */
.product-description {
    padding: 80px 0;
    background: var(--fotovoltaica-background);
}

.description-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.description-text h2 {
    color: var(--fotovoltaica-primary);
    margin-bottom: 1.5rem;
    font-size: 2.2rem;
}

.description-text p {
    color: var(--fotovoltaica-text-light);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.features-list {
    display: grid;
    gap: 1.5rem;
}

.feature-item {
    padding: 1.5rem;
    background: var(--fotovoltaica-background-alt);
    border-radius: var(--fotovoltaica-border-radius);
    border-left: 4px solid var(--fotovoltaica-primary);
}

.feature-item h3 {
    color: var(--fotovoltaica-text);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.feature-item p {
    color: var(--fotovoltaica-text-light);
    margin-bottom: 0;
    font-size: 0.95rem;
}

.description-image {
    text-align: center;
}

.description-image img {
    width: 100%;
    max-width: 500px;
    border-radius: var(--fotovoltaica-border-radius);
    box-shadow: var(--fotovoltaica-shadow-heavy);
    transition: var(--fotovoltaica-transition);
}

.description-image img:hover {
    transform: scale(1.02);
}

/* Tipos de Sistemas */
.system-types {
    padding: 80px 0;
    background: var(--fotovoltaica-background-alt);
}

.system-types h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--fotovoltaica-primary);
}

.types-grid {
    display: grid;
    /* patrón centrado y columnas variables */
    --card-min: 280px;
    --cols: 1;
    grid-template-columns: repeat(var(--cols), minmax(var(--card-min), 1fr));
    justify-items: center;
    gap: 2rem;
    max-width: 1400px;
    margin-inline: auto;
}

.type-card {
    background: var(--fotovoltaica-white);
    padding: 2.5rem 2rem;
    border-radius: var(--fotovoltaica-border-radius);
    box-shadow: var(--fotovoltaica-shadow-light);
    text-align: center;
    transition: var(--fotovoltaica-transition);
    border-top: 4px solid var(--fotovoltaica-primary);
}

.type-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--fotovoltaica-shadow-heavy);
}

.type-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.type-card h3 {
    color: var(--fotovoltaica-primary);
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.type-card ul {
    list-style: none;
    padding: 0;
    text-align: left;
}

.type-card li {
    padding: 0.5rem 0;
    color: var(--fotovoltaica-text-light);
    position: relative;
    padding-left: 1.5rem;
    border-bottom: 1px solid var(--fotovoltaica-border);
}

.type-card li:last-child {
    border-bottom: none;
}

.type-card li:before {
    content: "☀️";
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Componentes del Sistema */
.system-components {
    padding: 80px 0;
    background: var(--fotovoltaica-background);
}

.system-components h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--fotovoltaica-primary);
}

.components-grid {
    display: grid;
    /* patrón centrado y columnas variables */
    --card-min: 300px;
    --cols: 1;
    grid-template-columns: repeat(var(--cols), minmax(var(--card-min), 1fr));
    justify-items: center;
    gap: 2rem;
    max-width: 1400px;
    margin-inline: auto;
}

.component-card {
    background: var(--fotovoltaica-white);
    border-radius: var(--fotovoltaica-border-radius);
    box-shadow: var(--fotovoltaica-shadow-light);
    overflow: hidden;
    transition: var(--fotovoltaica-transition);
}

.component-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--fotovoltaica-shadow-heavy);
}

.component-image {
    height: 200px;
    overflow: hidden;
}

.component-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.component-content {
    padding: 2rem;
}

.component-content h3 {
    color: var(--fotovoltaica-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.component-content p {
    color: var(--fotovoltaica-text-light);
    line-height: 1.6;
}

/* Beneficios */
.benefits {
    padding: 80px 0;
    background: var(--fotovoltaica-background-alt);
}

.benefits h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--fotovoltaica-primary);
}

.benefits-grid {
    display: grid;
    /* patrón centrado y columnas variables */
    --card-min: 300px;
    --cols: 1;
    grid-template-columns: repeat(var(--cols), minmax(var(--card-min), 1fr));
    justify-items: center;
    gap: 2rem;
    max-width: 1400px;
    margin-inline: auto;
}

.benefit-card {
    background: var(--fotovoltaica-white);
    padding: 2.5rem 2rem;
    border-radius: var(--fotovoltaica-border-radius);
    box-shadow: var(--fotovoltaica-shadow-light);
    text-align: center;
    transition: var(--fotovoltaica-transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--fotovoltaica-shadow-medium);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    color: var(--fotovoltaica-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.benefit-card p {
    color: var(--fotovoltaica-text-light);
    line-height: 1.6;
}

/* Proceso de Implementación */
.implementation-process {
    padding: 80px 0;
    background: var(--fotovoltaica-background);
}

.implementation-process h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--fotovoltaica-primary);
}

.process-steps {
    display: grid;
    /* patrón centrado y columnas variables */
    --card-min: 250px;
    --cols: 1;
    grid-template-columns: repeat(var(--cols), minmax(var(--card-min), 1fr));
    justify-items: center;
    gap: 2rem;
    max-width: 1400px;
    margin-inline: auto;
}

.process-step {
    background: var(--fotovoltaica-white);
    padding: 2.5rem 2rem;
    border-radius: var(--fotovoltaica-border-radius);
    box-shadow: var(--fotovoltaica-shadow-light);
    text-align: center;
    position: relative;
    transition: var(--fotovoltaica-transition);
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--fotovoltaica-shadow-medium);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--fotovoltaica-primary);
    color: var(--fotovoltaica-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.process-step h3 {
    color: var(--fotovoltaica-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    margin-top: 1rem;
}

.process-step p {
    color: var(--fotovoltaica-text-light);
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--fotovoltaica-primary), var(--fotovoltaica-accent));
    color: var(--fotovoltaica-white);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: var(--fotovoltaica-white);
    color: var(--fotovoltaica-primary);
    border-color: var(--fotovoltaica-white);
}

.cta-section .btn-primary:hover {
    background: transparent;
    color: var(--fotovoltaica-white);
    border-color: var(--fotovoltaica-white);
}

.cta-section .btn-secondary {
    background: transparent;
    color: var(--fotovoltaica-white);
    border-color: var(--fotovoltaica-white);
}

.cta-section .btn-secondary:hover {
    background: var(--fotovoltaica-white);
    color: var(--fotovoltaica-primary);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 768px) {
    .hero-fotovoltaica {
        height: 50vh;
        margin-top: 70px;
    }
    
    .hero-fotovoltaica h1 {
        font-size: 2.2rem;
    }
    
    .hero-fotovoltaica p {
        font-size: 1.1rem;
    }
    
    .description-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .description-text h2 {
        font-size: 1.8rem;
    }
    
    .types-grid,
    .components-grid,
    .benefits-grid,
    .process-steps {
        --cols: 1;
        gap: 1.5rem;
    }
    
    .type-card,
    .component-card,
    .benefit-card,
    .process-step {
        padding: 2rem 1.5rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons a {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-fotovoltaica {
        height: 40vh;
        margin-top: 60px;
    }
    
    .hero-fotovoltaica h1 {
        font-size: 1.8rem;
    }
    
    .feature-item {
        padding: 1rem;
    }
    
    .benefit-icon {
        font-size: 2.5rem;
    }
    
    .system-types h2,
    .system-components h2,
    .benefits h2,
    .implementation-process h2 {
        font-size: 2rem;
    }
    
    .step-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
}

/* Breakpoints unificados para columnas variables en grids de la página */
@media (min-width: 600px) {
    .types-grid,
    .components-grid,
    .benefits-grid,
    .process-steps {
        --cols: 2;
    }
}

@media (min-width: 900px) {
    .types-grid,
    .components-grid,
    .benefits-grid,
    .process-steps {
        --cols: 4;
    }
}

@media (min-width: 1300px) {
    .types-grid,
    .components-grid,
    .benefits-grid,
    .process-steps {
        --cols: 6;
    }
}