/* ================= HERO SECTION - SKID ================= */
.hero-skid {
    height: 70vh;
    background: linear-gradient(135deg, rgba(245, 130, 32, 0.85), rgba(0, 0, 0, 0.8)),
                url('https://images.unsplash.com/photo-1581092580497-e0d23cbdf1dc?auto=format&fit=crop&w=2070&q=80') no-repeat center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-white);
    margin-top: 80px;
    position: relative;
}

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

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

.hero-skid 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(--color-background);
}

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

.description-text h2 {
    color: var(--color-primary);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.description-text > p {
    color: var(--color-text-light);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.feature-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-light);
}

.feature-item h3 {
    color: var(--color-text);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-item p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.5;
}

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

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

.description-image img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-heavy);
}

/* ================= TIPOS DE SKID ================= */
.skid-types {
    padding: 80px 0;
    background: var(--color-background-alt);
}

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

.types-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;
}

.type-card {
    background: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 2px solid transparent;
}

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

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

.type-card h3 {
    color: var(--color-text);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.type-card > p {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.type-card ul {
    list-style: none;
}

.type-card li {
    padding: 0.5rem 0;
    color: var(--color-text-light);
    position: relative;
    padding-left: 1.5rem;
}

.type-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ================= CARACTERÍSTICAS TÉCNICAS ================= */
.technical-specs {
    padding: 80px 0;
    background: var(--color-background);
}

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

.specs-grid {
    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;
}

.spec-card {
    background: var(--color-background-alt);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.spec-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--color-primary);
}

.spec-card h3 {
    color: var(--color-text);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.spec-value {
    color: var(--color-primary);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.spec-card p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin: 0;
}

/* ================= PROCESO DE FABRICACIÓN ================= */
.manufacturing-process {
    padding: 80px 0;
    background: var(--color-background-alt);
}

.manufacturing-process h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--color-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(--color-white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

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

.step-number {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}

.process-step:hover .step-number {
    transform: scale(1.1);
    background: var(--color-secondary);
}

.process-step h3 {
    color: var(--color-text);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.process-step p {
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0;
}

/* ================= BENEFICIOS ================= */
.benefits {
    padding: 80px 0;
    background: var(--color-background);
}

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

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

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

.benefits h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--color-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(--color-background-alt);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--color-primary);
}

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

.benefit-card h3 {
    color: var(--color-text);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.benefit-card p {
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0;
}

/* ================= APLICACIONES ================= */
.applications {
    padding: 80px 0;
    background: var(--color-background-alt);
}

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

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.application-card {
    background: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 1px solid transparent;
}

.application-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--color-primary);
}

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

.application-card h3 {
    color: var(--color-text);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.application-card p {
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0;
}

/* ================= CASOS DE ÉXITO ================= */
.success-cases {
    padding: 80px 0;
    background: var(--color-background);
}

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

.cases-grid {
    display: grid;
    /* patrón centrado y columnas variables */
    --card-min: 350px;
    --cols: 1;
    grid-template-columns: repeat(var(--cols), minmax(var(--card-min), 1fr));
    justify-items: center;
    gap: 2.5rem;
    max-width: 1400px;
    margin-inline: auto;
}

.case-card {
    background: var(--color-background-alt);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

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

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

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

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

.case-content {
    padding: 2rem;
}

.case-content h3 {
    color: var(--color-text);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.case-content p {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.case-result {
    background: rgba(245, 130, 32, 0.1);
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* ================= CTA SECTION ================= */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-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(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

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

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

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

/* ================= RESPONSIVE DESIGN ================= */
@media (max-width: 1024px) {
    .description-content {
        gap: 3rem;
    }
    
    .hero-skid h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .hero-skid {
        height: 60vh;
        margin-top: 70px;
    }
    
    .hero-skid h1 {
        font-size: 2.2rem;
    }
    
    .hero-skid p {
        font-size: 1.1rem;
    }
    
    .description-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .types-grid,
    .specs-grid,
    .process-steps,
    .benefits-grid,
    .applications-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .product-description h2,
    .skid-types h2,
    .technical-specs h2,
    .manufacturing-process h2,
    .benefits h2,
    .applications h2,
    .success-cases h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-skid {
        height: 50vh;
        margin-top: 60px;
    }
    
    .hero-skid h1 {
        font-size: 1.8rem;
    }
    
    .feature-item,
    .type-card,
    .spec-card,
    .process-step,
    .benefit-card,
    .application-card {
        padding: 1.5rem 1rem;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
}

/* ================= ANIMACIONES ESPECÍFICAS ================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.type-card,
.spec-card,
.process-step,
.benefit-card,
.application-card,
.case-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* Retrasos escalonados para las animaciones */
.type-card:nth-child(1) { animation-delay: 0.1s; }
.type-card:nth-child(2) { animation-delay: 0.2s; }
.type-card:nth-child(3) { animation-delay: 0.3s; }
.type-card:nth-child(4) { animation-delay: 0.4s; }

.process-step:nth-child(1) { animation-delay: 0.1s; }
.process-step:nth-child(2) { animation-delay: 0.2s; }
.process-step:nth-child(3) { animation-delay: 0.3s; }
.process-step:nth-child(4) { animation-delay: 0.4s; }
.process-step:nth-child(5) { animation-delay: 0.5s; }

.benefit-card:nth-child(1) { animation-delay: 0.1s; }
.benefit-card:nth-child(2) { animation-delay: 0.2s; }
.benefit-card:nth-child(3) { animation-delay: 0.3s; }
.benefit-card:nth-child(4) { animation-delay: 0.4s; }
.benefit-card:nth-child(5) { animation-delay: 0.5s; }
.benefit-card:nth-child(6) { animation-delay: 0.6s; }