/* ===========================
   VARIABLES PREMIUM
   =========================== */
:root {
    /* Colores Premium - Paleta corporativa elegante */
    --color-primary: #1a5490;        /* Azul corporativo profundo */
    --color-secondary: #d4af37;      /* Dorado elegante */
    --color-accent: #2563eb;         /* Azul brillante */
    
    /* Neutrales elegantes */
    --color-black: #000000;
    --color-charcoal: #1a1a1a;
    --color-gray-dark: #2d2d2d;
    --color-gray: #6b7280;
    --color-gray-light: #d1d5db;
    --color-gray-lighter: #f3f4f6;
    --color-white: #ffffff;
    --color-offwhite: #fafafa;
    
    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Otros */
    --border-radius: 2px;
    --transition-fast: 0.2s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;
    --shadow-subtle: 0 1px 3px rgba(26, 84, 144, 0.06);
    --shadow-sm: 0 2px 8px rgba(26, 84, 144, 0.08);
    --shadow-md: 0 4px 16px rgba(26, 84, 144, 0.10);
    --shadow-lg: 0 8px 32px rgba(26, 84, 144, 0.12);
    --header-height: 80px;
}

/* ===========================
   RESET Y BASE
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-primary);
    color: var(--color-charcoal);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

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

.container-premium-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}


/* ===========================
   HEADER PREMIUM
   =========================== */
.header-premium {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-subtle);
    z-index: 1000;
    transition: var(--transition);
}

.nav-premium {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.nav-logo-premium {
    display: flex;
    align-items: center;
    height: 60px;
    transition: var(--transition);
}

.nav-logo-premium:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.logo-img {
    height: 55px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
}

.logo-text {
    color: var(--color-charcoal);
}

.logo-accent {
    color: var(--color-primary);
}

.nav-menu-premium {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-list-premium {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link-premium {
    color: var(--color-charcoal);
    font-weight: 500;
    font-size: 0.9375rem;
    position: relative;
    letter-spacing: 0.3px;
}

.nav-link-premium::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

.nav-link-premium:hover::after,
.nav-link-premium.active::after {
    width: 100%;
}

.btn-nav-premium {
    min-width: 160px;
    height: 45px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 1.5rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, #0f3a5f 100%);
    color: white !important;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 2px 8px rgba(26, 84, 144, 0.2);
    z-index: 1;
}

.btn-nav-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #d4af37 0%, #c49a2e 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: 6px;
    z-index: -1;
}

.btn-nav-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
    color: white !important;
}

.btn-nav-premium:hover::before {
    opacity: 1;
}

.btn-nav-premium:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.2);
}

.nav-toggle-premium {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle-premium .line {
    width: 25px;
    height: 2px;
    background-color: var(--color-charcoal);
    transition: var(--transition);
}


/* ===========================
   HERO PREMIUM - Banner Gigante
   =========================== */
.hero-premium {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: var(--header-height);
    overflow: hidden;
}

.hero-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.5) 100%
    );
}

.hero-content-premium {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--color-white);
    max-width: 900px;
    animation: fadeInUp 1s ease;
}

.hero-title-premium {
    font-size: 4.6rem;
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -1px;
}

.hero-subtitle-premium {
    font-size: 1.125rem;
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    letter-spacing: 1px;
}

.hero-buttons-premium {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-premium-outline,
.btn-premium-solid {
    min-width: 180px;
    height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 2rem;
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    border-radius: 8px;
    cursor: pointer;
    position: relative;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
    z-index: 1;
}

/* Botón outline - transparente con borde */
.btn-premium-outline {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.btn-premium-outline:hover {
    background-color: white;
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.3);
}

.btn-premium-outline:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px rgba(255, 255, 255, 0.2);
}

/* Botón solid - con gradiente corporativo */
.btn-premium-solid {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0f3a5f 100%);
    color: white !important;
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(26, 84, 144, 0.3);
}

.btn-premium-solid::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #856d1e 0%, #eb7f00 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: 6px;
    z-index: -1;
}

.btn-premium-solid:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
    color: white !important;
}

.btn-premium-solid:hover::before {
    opacity: 1;
}

.btn-premium-solid:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-white);
    opacity: 0.8;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}


/* ===========================
   PRODUCTOS PREMIUM - 3 Bloques Limpios
   =========================== */
.productos-premium {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-offwhite);
}

.section-header-premium {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title-premium {
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.section-subtitle-premium {
    font-size: 1.125rem;
    color: var(--color-gray);
    font-weight: 400;
}

.productos-grid-premium {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.producto-card-premium {
    background-color: var(--color-white);
    overflow: hidden;
    transition: var(--transition-slow);
}

.producto-card-premium:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.producto-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 400px;
}

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

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

.producto-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 60%, rgba(0, 0, 0, 0.7));
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    transition: var(--transition);
}

.producto-card-premium:hover .producto-overlay {
    opacity: 1;
}

.producto-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.producto-cta:hover {
    gap: 1rem;
}

.producto-content {
    padding: var(--spacing-md);
}

.producto-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.producto-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gray-lighter);
    line-height: 1;
}

.producto-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-gray);
    font-weight: 600;
}

.producto-title {
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.3px;
}

.producto-description {
    color: var(--color-gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.producto-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.producto-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    color: var(--color-gray-dark);
}

.producto-features i {
    color: var(--color-primary);
    font-size: 0.875rem;
}


/* ===========================
   VALORES PREMIUM
   =========================== */
.valores-premium {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-white);
}

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

.valor-item {
    text-align: center;
    padding: var(--spacing-md);
}

.valor-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-gray-light);
    border-radius: 50%;
    color: var(--color-primary);
    font-size: 1.5rem;
    transition: var(--transition);
}

.valor-item:hover .valor-icon {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: scale(1.1);
}

.valor-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-charcoal);
    margin-bottom: 0.25rem;
}

.valor-text {
    font-size: 0.875rem;
    color: var(--color-gray);
}

/* ===========================
   PROYECTOS PREMIUM
   =========================== */
.proyectos-premium {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-offwhite);
}

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

.proyecto-item {
    position: relative;
    overflow: hidden;
    height: 350px;
    cursor: pointer;
}

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

.proyecto-item:hover img {
    transform: scale(1.1);
}

.proyecto-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
    color: var(--color-white);
    transform: translateY(100%);
    transition: var(--transition);
}

.proyecto-item:hover .proyecto-info {
    transform: translateY(0);
}

.proyecto-categoria {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    opacity: 0.8;
    display: block;
    margin-bottom: 0.25rem;
}

.proyecto-nombre {
    font-size: 1.125rem;
    font-weight: 500;
}


/* ===========================
   CONTACTO PREMIUM
   =========================== */
.contacto-premium {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.contacto-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.contacto-title {
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--color-charcoal);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.contacto-description {
    color: var(--color-gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.info-item i {
    color: var(--color-primary);
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.info-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-gray);
    margin-bottom: 0.25rem;
}

.info-value {
    display: block;
    font-size: 1.125rem;
    color: var(--color-charcoal);
    font-weight: 500;
}

.info-value:hover {
    color: var(--color-primary);
}

/* Formulario Premium */
.contacto-form {
    background-color: var(--color-offwhite);
    padding: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--color-gray-light);
    background-color: var(--color-white);
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit-premium {
    width: 100%;
    padding: 1rem 2rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-submit-premium:hover {
    background-color: var(--color-charcoal);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.form-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    text-align: center;
    font-size: 0.9375rem;
    display: none;
}

.form-message.success {
    background-color: #d1fae5;
    color: #065f46;
    display: block;
}

.form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    display: block;
}


/* ===========================
   FOOTER PREMIUM
   =========================== */
.footer-premium {
    background-color: var(--color-charcoal);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-logo-image {
    height: 60px;
    width: auto;
    max-width: 250px;
    object-fit: contain;
    margin-bottom: 1rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: var(--spacing-sm);
}

.footer-logo span {
    color: var(--color-secondary);
}

.footer-tagline {
    color: var(--color-gray-light);
    line-height: 1.8;
    font-size: 0.9375rem;
}

.footer-links h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--color-gray-light);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-white);
    padding-left: 0.5rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: var(--color-gray-light);
}

.social-links-footer {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links-footer a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--color-white);
    transition: var(--transition);
}

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

/* ===========================
   WHATSAPP FLOTANTE
   =========================== */
.whatsapp-float-premium {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float-premium:hover {
    transform: scale(1.1);
    background-color: #128c7e;
}


/* ===========================
   ANIMACIONES
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   RESPONSIVE - TABLET
   =========================== */
@media screen and (max-width: 1024px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
    
    .section-title-premium {
        font-size: 2rem;
    }
    
    .hero-title-premium {
        font-size: 2.5rem;
    }
    
    .productos-grid-premium {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .valores-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .proyectos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contacto-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* ===========================
   RESPONSIVE - MOBILE
   =========================== */
@media screen and (max-width: 768px) {
    :root {
        --header-height: 70px;
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
        --spacing-md: 1.5rem;
    }
    
    .nav-menu-premium {
        position: fixed;
        top: var(--header-height);
        right: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transition: right 0.3s ease;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .nav-menu-premium.active {
        right: 0;
    }
    
    .btn-nav-premium {
        width: 100%;
        min-width: unset;
    }
    
    .nav-list-premium {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
    }
    
    .nav-link-premium {
        display: block;
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--color-gray-lighter);
        width: 100%;
    }
    
    .nav-toggle-premium {
        display: flex;
    }
    
    .hero-premium {
        min-height: 600px;
        padding: var(--spacing-lg) 0;
    }
    
    .hero-title-premium {
        font-size: 2rem;
    }
    
    .hero-subtitle-premium {
        font-size: 1rem;
    }
    
    .hero-buttons-premium {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-premium-outline,
    .btn-premium-solid {
        width: 100%;
        min-width: unset;
        height: 48px;
        font-size: 14px;
    }
    
    .section-title-premium {
        font-size: 1.75rem;
    }
    
    .productos-grid-premium {
        grid-template-columns: 1fr;
    }
    
    .producto-image-wrapper {
        height: 300px;
    }
    
    .valores-grid {
        grid-template-columns: 1fr;
    }
    
    .proyectos-grid {
        grid-template-columns: 1fr;
    }
    
    .proyecto-item {
        height: 280px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .whatsapp-float-premium {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
}

/* ===========================
   ACCESIBILIDAD
   =========================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

@media (prefers-contrast: high) {
    :root {
        --color-gray: #4a5568;
    }
}

/* ===========================
   QUIÉNES SOMOS
   =========================== */
.quienes-somos-premium {
    background-color: #f8fafc;
    padding: 6rem 0;
}

.quienes-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.quienes-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #475569;
}

.quienes-text strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* ===========================
   SOLUCIONES POR TIPO
   =========================== */
.soluciones-premium {
    background-color: white;
    padding: 6rem 0;
}

.soluciones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.solucion-card {
    background: linear-gradient(135deg, #1a5490 0%, #0f3a5f 100%);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    color: white;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.solucion-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transition: transform 0.5s ease;
}

.solucion-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(26, 84, 144, 0.3);
}

.solucion-card:hover::before {
    transform: translate(10%, 10%);
}

.solucion-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: #d4af37;
    position: relative;
    z-index: 1;
}

.solucion-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.solucion-description {
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

/* ===========================
   SERVICIOS
   =========================== */
.servicios-premium {
    background-color: #f8fafc;
    padding: 6rem 0;
}

.servicio-categoria {
    margin-bottom: 4rem;
}

.servicio-categoria:last-child {
    margin-bottom: 0;
}

.servicio-categoria.destacada {
    background: linear-gradient(135deg, rgba(26, 84, 144, 0.05) 0%, rgba(15, 58, 95, 0.05) 100%);
    padding: 3rem;
    border-radius: 16px;
    border: 2px solid rgba(26, 84, 144, 0.1);
}

.categoria-titulo {
    font-size: 2rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.categoria-titulo i {
    color: var(--color-primary);
    font-size: 1.75rem;
}

.badge-especialidad {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #d4af37, #b8941f);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-left: auto;
}

.servicios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.servicio-card {
    background-color: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border-left: 4px solid transparent;
}

.servicio-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
    border-left-color: var(--color-primary);
}

.servicio-card.featured {
    border-left-color: #d4af37;
    background: linear-gradient(135deg, #ffffff 0%, #fef9e7 100%);
}

.servicio-card.featured:hover {
    border-left-color: #b8941f;
}

.servicio-numero {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1a5490, #0f3a5f);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.servicio-card.featured .servicio-numero {
    background: linear-gradient(135deg, #d4af37, #b8941f);
}

.servicio-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.servicio-description {
    font-size: 1rem;
    line-height: 1.7;
    color: #475569;
}

.servicio-tecnico-content {
    background-color: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    max-width: 800px;
}

.servicio-title-tecnico {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 1rem;
}

.servicio-description-tecnico {
    font-size: 1.125rem;
    line-height: 1.7;
    color: #475569;
    margin-bottom: 1.5rem;
}

.servicio-lista {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    list-style: none;
}

.servicio-lista li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    color: #334155;
}

.servicio-lista li i {
    color: var(--color-primary);
    font-size: 1.125rem;
}

/* ===========================
   CERTIFICACIONES SIMPLES
   =========================== */
.certificaciones-simple {
    background: linear-gradient(135deg, #f8fafc 0%, #e5e7eb 100%);
    padding: 2.5rem 0;
    border-top: 1px solid #e5e7eb;
}

.certificaciones-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.certificaciones-simple-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
}

.certificaciones-simple-title i {
    color: #d4af37;
    font-size: 1.5rem;
}

.certificaciones-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.certificacion-badge-item {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    color: #1a5490;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.certificacion-badge-item:hover {
    background: linear-gradient(135deg, #1a5490, #0f3a5f);
    border-color: #1a5490;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(26, 84, 144, 0.2);
}

.certificacion-badge-item i {
    font-size: 1.25rem;
    color: #d4af37;
    transition: color 0.3s ease;
}

.certificacion-badge-item:hover i {
    color: #d4af37;
}

/* Responsive Certificaciones Simples */
@media screen and (max-width: 768px) {
    .certificaciones-simple {
        padding: 2rem 0;
    }
    
    .certificaciones-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1.5rem;
    }
    
    .certificaciones-badges {
        justify-content: center;
        width: 100%;
    }
    
    .certificacion-badge-item {
        flex: 1;
        min-width: 200px;
        justify-content: center;
    }
}

@media screen and (max-width: 480px) {
    .certificaciones-badges {
        flex-direction: column;
        width: 100%;
    }
    
    .certificacion-badge-item {
        width: 100%;
    }
}

/* Botones del carrusel */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: white;
    border: 2px solid #e5e7eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.carousel-btn:hover {
    background: linear-gradient(135deg, #1a5490, #0f3a5f);
    border-color: #1a5490;
    color: white;
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn i {
    font-size: 1.25rem;
    color: inherit;
}

.prev-btn {
    left: 0;
}

.next-btn {
    right: 0;
}

.carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

/* Indicadores (dots) */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2rem;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #cbd5e1;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dot.active {
    background: linear-gradient(135deg, #1a5490, #0f3a5f);
    width: 32px;
    border-radius: 6px;
}

.carousel-dot:hover {
    background-color: #94a3b8;
}

/* Responsive */
@media screen and (max-width: 768px) {
    .certificaciones-wrapper {
        padding: 0 50px;
    }
    
    .certificacion-card {
        min-width: 280px;
        max-width: 280px;
    }
    
    .certificacion-preview {
        height: 350px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
    }
    
    .carousel-btn i {
        font-size: 1rem;
    }
}

@media screen and (max-width: 480px) {
    .certificaciones-wrapper {
        padding: 0 40px;
    }
    
    .certificacion-card {
        min-width: 260px;
        max-width: 260px;
    }
    
    .certificacion-preview {
        height: 320px;
    }
}

/* ===========================
   FORMULARIO CONTACTO - MEJORADO
   =========================== */
.tipo-proyecto-label,
.visita-tecnica-label {
    font-weight: 600;
    color: #0f172a;
    display: block;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.radio-group-horizontal {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    color: #475569;
    transition: color 0.2s ease;
}

.radio-label:hover {
    color: var(--color-primary);
}

.radio-label input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.radio-label span {
    user-select: none;
}

/* ===========================
   RESPONSIVE - NUEVAS SECCIONES
   =========================== */
@media screen and (max-width: 968px) {
    .soluciones-grid {
        grid-template-columns: 1fr;
    }
    
    .servicios-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .servicio-lista {
        grid-template-columns: 1fr;
    }
    
    .categoria-titulo {
        font-size: 1.5rem;
    }
    
    .badge-especialidad {
        margin-left: 0;
        margin-top: 0.5rem;
    }
    
    .compromiso-title {
        font-size: 2rem;
    }
    
    .compromiso-text {
        font-size: 1.125rem;
    }
}

@media screen and (max-width: 768px) {
    .quienes-somos-premium,
    .soluciones-premium,
    .servicios-premium,
    .compromiso-premium {
        padding: 4rem 0;
    }
    
    .servicio-categoria.destacada {
        padding: 2rem 1.5rem;
    }
    
    .servicio-tecnico-content {
        padding: 1.5rem;
    }
    
    .quienes-text {
        font-size: 1rem;
    }
    
    .solucion-card {
        padding: 2rem 1.5rem;
    }
    
    .radio-group-horizontal {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .categoria-titulo {
        font-size: 1.25rem;
        flex-direction: column;
        align-items: flex-start;
    }
}

@media screen and (max-width: 480px) {
    .compromiso-title {
        font-size: 1.5rem;
    }
    
    .compromiso-text {
        font-size: 1rem;
    }
    
    .solucion-title {
        font-size: 1.25rem;
    }
    
    .servicio-title {
        font-size: 1.125rem;
    }
}

/* ===========================
   IMÁGENES EN TARJETAS DE SERVICIO
   =========================== */
.servicio-image {
    width: calc(100% + 4rem);
    height: 200px;
    overflow: hidden;
    border-radius: 8px 8px 0 0;
    margin: -2rem -2rem 0 -2rem;
}

.servicio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.servicio-card:hover .servicio-image img {
    transform: scale(1.1);
}

.servicio-content {
    padding-top: 1.5rem;
}

.servicio-card .servicio-numero {
    margin-bottom: 1rem;
}

/* ===========================
   CARRUSEL DE COLORES PVC
   =========================== */
.colores-pvc-section {
    margin-top: 2.5rem;
    margin-bottom: 2rem;
    padding: 2.5rem 2rem;
    background: linear-gradient(135deg, rgba(26, 84, 144, 0.03) 0%, rgba(15, 58, 95, 0.03) 100%);
    border-radius: 12px;
    border: 1px solid rgba(26, 84, 144, 0.1);
}

.colores-pvc-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.colores-pvc-header i {
    font-size: 1.5rem;
    color: #d4af37;
}

.colores-pvc-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
}

.colores-pvc-carousel-wrapper {
    overflow: hidden;
    position: relative;
    padding: 1.5rem 0;
}

.colores-pvc-carousel {
    display: flex;
    gap: 3rem;
    width: max-content;
    animation: pvcScroll 25s linear infinite;
    will-change: transform;
}
.colores-pvc-carousel:hover{
    animation-play-state: paused;
}

.color-pvc-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    min-width: 200px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.color-pvc-item:hover {
    transform: scale(1.08);
}

.color-pvc-muestra {
    width: 140px;
    height: 140px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    background-color: #f5f5f5;
}

.color-pvc-muestra img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.color-pvc-muestra::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%, rgba(0,0,0,0.05) 100%);
    pointer-events: none;
}

.color-pvc-item:hover .color-pvc-muestra {
    box-shadow: 0 8px 24px rgba(26, 84, 144, 0.25);
    transform: translateY(-5px);
}

.color-pvc-nombre {
    font-size: 1rem;
    font-weight: 600;
    color: #334155;
    text-align: center;
}

/* Responsive Colores PVC */
@media screen and (max-width: 768px) {
    .colores-pvc-section {
        padding: 2rem 1.5rem;
        margin-top: 2rem;
        margin-bottom: 1.5rem;
    }
    
    .colores-pvc-title {
        font-size: 1rem;
    }
    
    .color-pvc-item {
        min-width: 150px;
    }
    
    .color-pvc-muestra {
        width: 110px;
        height: 110px;
    }
    
    .color-pvc-nombre {
        font-size: 0.9375rem;
    }
}

@media screen and (max-width: 480px) {
    .colores-pvc-header {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .color-pvc-item {
        min-width: 120px;
        gap: 0.75rem;
    }
    
    .color-pvc-muestra {
        width: 90px;
        height: 90px;
    }
    
    .color-pvc-nombre {
        font-size: 0.875rem;
    }
}

@keyframes pvcScroll{

    from{
        transform:translateX(0);
    }

    to{
        transform:translateX(-50%);
    }

}

.colores-pvc-carousel-wrapper::before,
.colores-pvc-carousel-wrapper::after{

    content:"";
    position:absolute;
    top:0;
    width:90px;
    height:100%;
    z-index:5;
    pointer-events:none;

}

.colores-pvc-carousel-wrapper::before{

    left:0;

    background:linear-gradient(
        to right,
        white,
        transparent
    );

}

.colores-pvc-carousel-wrapper::after{

    right:0;

    background:linear-gradient(
        to left,
        white,
        transparent
    );

}

/* ===========================
   CARRUSEL DE COLORES ALUMINIO - ESTILO APPLE
   =========================== */
.colores-aluminio-section {
    margin: 4rem 0;
    padding: 5rem 2rem;
    background: linear-gradient(180deg, #fafafa 0%, #ffffff 100%);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.colores-aluminio-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.colores-aluminio-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: #1d1d1f;
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.colores-aluminio-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    color: #6e6e73;
    margin: 0 0 3rem 0;
    letter-spacing: -0.01em;
}

.colores-aluminio-carousel-wrapper {
    overflow: hidden;
    position: relative;
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.colores-aluminio-carousel {
    display: flex;
    gap: 2.5rem;
    width: max-content;
    will-change: transform;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.color-aluminio-item {
    min-width: 280px;
    flex-shrink: 0;
}

.color-aluminio-card {
    background: #ffffff;
    border-radius: 18px;
    padding: 2.5rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.color-aluminio-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.color-aluminio-muestra {
    width: 120px;
    height: 120px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    box-shadow: 
        inset 0 2px 8px rgba(0, 0, 0, 0.1),
        0 4px 16px rgba(0, 0, 0, 0.12);
    position: relative;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
    background-color: #f5f5f5;
}

.color-aluminio-muestra img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.color-aluminio-card:hover .color-aluminio-muestra {
    transform: scale(1.08);
    box-shadow: 
        inset 0 2px 12px rgba(0, 0, 0, 0.15),
        0 8px 24px rgba(0, 0, 0, 0.2);
}

.color-aluminio-muestra::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: linear-gradient(145deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0) 50%, rgba(0,0,0,0.1) 100%);
    pointer-events: none;
}

.color-aluminio-nombre {
    font-size: 1.375rem;
    font-weight: 600;
    color: #1d1d1f;
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.02em;
}

.color-aluminio-desc {
    font-size: 1rem;
    font-weight: 400;
    color: #86868b;
    margin: 0;
    letter-spacing: -0.01em;
}

/* Dots de navegación estilo Apple */
.colores-aluminio-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.colores-aluminio-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #d2d2d7;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.colores-aluminio-dots .dot:hover {
    background-color: #86868b;
    transform: scale(1.2);
}

.colores-aluminio-dots .dot.active {
    background-color: #1d1d1f;
    transform: scale(1.3);
}

/* Responsive Colores Aluminio */
@media screen and (max-width: 1024px) {
    .colores-aluminio-title {
        font-size: 2rem;
    }
    
    .colores-aluminio-subtitle {
        font-size: 1.125rem;
    }
    
    .color-aluminio-item {
        min-width: 250px;
    }
    
    .color-aluminio-card {
        padding: 2rem 1.5rem;
    }
}

@media screen and (max-width: 768px) {
    .colores-aluminio-section {
        padding: 3rem 1.5rem;
        margin: 3rem 0;
    }
    
    .colores-aluminio-title {
        font-size: 1.75rem;
    }
    
    .colores-aluminio-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .color-aluminio-item {
        min-width: 220px;
    }
    
    .color-aluminio-card {
        padding: 1.75rem 1.25rem;
    }
    
    .color-aluminio-muestra {
        width: 100px;
        height: 100px;
        margin-bottom: 1.25rem;
    }
    
    .color-aluminio-nombre {
        font-size: 1.25rem;
    }
    
    .color-aluminio-desc {
        font-size: 0.9375rem;
    }
}

@media screen and (max-width: 480px) {
    .colores-aluminio-section {
        padding: 2.5rem 1rem;
    }
    
    .colores-aluminio-title {
        font-size: 1.5rem;
    }
    
    .colores-aluminio-subtitle {
        font-size: 0.9375rem;
    }
    
    .color-aluminio-item {
        min-width: 200px;
    }
    
    .color-aluminio-card {
        padding: 1.5rem 1rem;
    }
    
    .color-aluminio-muestra {
        width: 90px;
        height: 90px;
    }
    
    .color-aluminio-nombre {
        font-size: 1.125rem;
    }
    
    .color-aluminio-desc {
        font-size: 0.875rem;
    }
    
    .colores-aluminio-dots .dot {
        width: 7px;
        height: 7px;
    }
}


/* ===========================
   LIGHTBOX MODAL PARA CARRUSELES
   =========================== */
.lightbox-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.95);
    animation: fadeIn 0.3s ease;
}

.lightbox-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    animation: zoomIn 0.3s ease;
}

.lightbox-content img {
    width: auto;
    height: auto;
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    display: block;
    margin: 0 auto;
}

.lightbox-close {
    position: absolute;
    top: -50px;
    right: 0;
    color: white;
    font-size: 40px;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.lightbox-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.lightbox-caption {
    text-align: center;
    color: white;
    padding: 1.5rem;
    font-size: 1.25rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes zoomIn {
    from {
        transform: scale(0.7);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Cursor pointer para imágenes clicables */
.color-pvc-muestra,
.color-aluminio-muestra {
    cursor: pointer;
}

.color-pvc-muestra:hover,
.color-aluminio-muestra:hover {
    opacity: 0.9;
}

/* Responsive lightbox */
@media screen and (max-width: 768px) {
    .lightbox-close {
        top: 10px;
        right: 10px;
        font-size: 30px;
        width: 40px;
        height: 40px;
    }
    
    .lightbox-content img {
        max-width: 95vw;
        max-height: 80vh;
    }
    
    .lightbox-caption {
        font-size: 1rem;
        padding: 1rem;
    }
}