/* =========================================
   VARIABLES Y CONFIGURACIÓN GLOBAL
MZO
   ========================================= */

:root {
    --color-primary: #08124b; /* Azul corporativo profundo */
    --color-action: #FFC107; /* Amarillo Solar */
    --color-accent: #8b9d29; /* Verde tranquilo */
    --color-light: #F8F9FA;
    --color-white: #FFFFFF;
    --font-main: 'Montserrat', sans-serif;
}

html {
    scroll-behavior: smooth; /* Desplazamiento suave para toda la página */
}

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

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* =========================================
   BOTONES GLOBALES
========================================= */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-action);
    color: var(--color-primary);
}

.btn-primary:hover {
    background-color: #e0a800;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

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

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* =========================================
   HEADER Y NAVEGACIÓN
========================================= */
.main-header {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 1px 0;
    position: fixed;
    width: 100%;
    top: 10px;
    z-index: 100;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h2 {
    color: var(--color-white);
    font-weight: 800;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

.main-nav a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: var(--color-action);
}

/* =========================================
   ESTILOS DEL BOTÓN HAMBURGUESA (Oculto en PC)
========================================= */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 35px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 2000; /* Mantiene el botón por encima del menú abierto */
}

.menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 5px;
    transition: all 0.3s ease;
}

/* Animación: Las rayas se transforman en una "X" cuando está abierto */
.menu-toggle.active span:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
    transform: translateY(-11px) rotate(-45deg);
}

/* =========================================
   MEDIA QUERIES (RESPONSIVO MÓVIL Y HAMBURGUESA)
========================================= */
@media (max-width: 992px) {
    .contact-grid, .ti-container {
        grid-template-columns: 1fr;
        flex-direction: column;
        gap: 40px;
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .safety-container {
        flex-direction: column;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }

    /* Activamos el botón hamburguesa */
    .menu-toggle {
        display: flex; 
    }

    /* Ocultamos el botón de cotizar superior para no amontonar (ya hay uno gigante en la portada) */
    .header-btn-cotizar {
        display: none;
    }

    /* Transformamos el menú en un panel lateral (Drawer) */
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%; /* Inicia fuera de la pantalla */
        width: 280px;        
        height: 100vh;
        background-color: #050b2b; /* Un azul más oscuro para que contraste */
        padding-top: 100px;
        transition: right 0.4s cubic-bezier(0.77, 0.2, 0.05, 1.0);
        box-shadow: -5px 0 15px rgba(0,0,0,0.5);
        z-index: 1500;
        display: block; /* Forzamos que se comporte como bloque */
    }

    /* Esta clase activa desliza el menú hacia adentro */
    .main-nav.active {
        right: 0; 
    }

    .main-nav ul {
        flex-direction: column; /* Enlaces en lista vertical */
        align-items: flex-start;
        padding-left: 40px;
        gap: 30px;
    }

    .main-nav a {
        font-size: 1.2rem;
        display: block;
        width: 100%;/* Letra más grande para tocar con el dedo */
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .scroll-top-btn {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}
/* =========================================
   HERO SECTION (PORTADA)
========================================= */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: url('tu-imagen-solar.jpg') center/cover no-repeat; 
    margin-top: 80px;
}

.hero-overlay {
    position: absolute;
    
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(8, 18, 75, 0.5); /* Ajustado a tu azul principal */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-white);
    max-width: 800px;
}

.hero-subtitle-top {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-action);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 35px;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

/* =========================================
   SECCIONES GLOBALES
========================================= */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--color-primary);
}

/* =========================================
   BENEFICIOS
========================================= */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.benefit-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
    border-bottom: 4px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-10px);
    border-bottom: 4px solid var(--color-action);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.benefit-card h3 {
    margin-bottom: 15px;
    color: var(--color-primary);
}

/* =========================================
   SEGURIDAD (HOGAR ELÉCTRICO)
========================================= */
.safety {
    background-color: #f0f2eb;
}

.safety-container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.safety-image, .safety-text {
    flex: 1;
}

.safety-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.tag-safety {
    color: var(--color-accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 10px;
}

.safety-list {
    list-style: none;
    margin: 25px 0;
}

.safety-list li {
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
}

.btn-accent {
    background-color: var(--color-accent);
    color: white;
}

.btn-accent:hover {
    background-color: #6d7b20;
    transform: scale(1.05);
}

/* =========================================
   AUTORIDAD (CERTIFICACIONES)
========================================= */
.authority {
    background-color: var(--color-primary);
    color: white;
    text-align: center;
}

.authority-badge {
    display: inline-block;
    padding: 5px 20px;
    border: 1px solid var(--color-action);
    color: var(--color-action);
    border-radius: 50px;
    margin-bottom: 20px;
}

.authority h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.logos-certificacion {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.logo-placeholder {
    border: 1px dashed rgba(255,255,255,0.3);
    padding: 20px;
    min-width: 150px;
    background: rgba(255,255,255,0.05); /* Un fondo muy sutil para resaltar el QR */
    border-radius: 5px;
}

/* NUEVA REGLA: Hace que el QR sea responsivo y estético */
.logo-placeholder img {
    max-width: 100%; /* Evita que la imagen se salga de su caja */
    height: auto; /* Mantiene la proporción cuadrada del QR */
    display: block; /* Quita el espacio fantasma debajo de la imagen */
    margin: 0 auto 15px auto; /* Centra el QR y lo separa del texto */
    border-radius: 5px; /* Suaviza las esquinas del fondo blanco del QR */
}
/* =========================================
   SECCIÓN DE PROYECTOS / GALERÍA
========================================= */
.projects {
    background-color: var(--color-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--color-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-image {
    width: 100%;
    height: 250px;
    background-color: #ddd; /* Color de fondo mientras carga la imagen */
    /* La imagen se carga por HTML en el atributo style */
}

.project-info {
    padding: 30px;
}

.project-tag {
    color: var(--color-action);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 10px;
}

.project-info h3 {
    color: var(--color-primary);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.project-info p {
    font-size: 0.95rem;
    color: #555;
}

/* =========================================
   SECCIÓN FAQ (PREGUNTAS FRECUENTES)
========================================= */
.faq-section {
    background-color: var(--color-white);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--color-light);
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    overflow: hidden;
}

/* El título de la pregunta (Summary) */
.faq-item summary {
    padding: 20px 25px;
    font-weight: 600;
    color: var(--color-primary);
    font-size: 1.1rem;
    cursor: pointer;
    list-style: none; /* Oculta la flecha por defecto en algunos navegadores */
    position: relative;
    transition: background-color 0.3s;
}

/* Flecha personalizada usando CSS puro */
.faq-item summary::-webkit-details-marker {
    display: none; /* Oculta la flecha por defecto en Chrome/Safari */
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--color-action);
    transition: transform 0.3s;
}

.faq-item[open] summary::after {
    content: '-'; /* Cambia a menos cuando está abierto */
}

.faq-item summary:hover {
    background-color: #f1f3f5;
}

.faq-content {
    padding: 0 25px 25px 25px;
    color: #444;
    line-height: 1.7;
    border-top: 1px solid #e9ecef;
    margin-top: 10px;
    padding-top: 20px;
}
/* =========================================
   PROCESO (PASOS)
========================================= */
.process {
    background-color: var(--color-white);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    color: #e9ecef;
    line-height: 1;
    margin-bottom: -20px;
    z-index: -1;
}

.step h3 {
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-bottom: 15px;
}

/* =========================================
   DIVISIÓN TI
========================================= */
.ti-division {
    background-color: var(--color-primary);
    color: white;
}

.ti-container {
    display: flex;
    align-items: center;
    gap: 80px;
}

.tag-ti {
    color: var(--color-action);
    text-transform: uppercase;
    font-weight: 700;
    font-size: 0.9rem;
}

.ti-services-list {
    margin: 30px 0;
}

.ti-item {
    margin-bottom: 10px;
    font-weight: 400;
}

.btn-outline-dark {
    border: 2px solid var(--color-action);
    color: var(--color-action);
    padding: 10px 25px;
    text-decoration: none;
    border-radius: 5px;
    display: inline-block;
    transition: 0.3s;
}

.btn-outline-dark:hover {
    background-color: var(--color-action);
    color: var(--color-primary);
}

.ti-card-graphic {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 60px;
    border-radius: 20px;
    text-align: center;
}

/* =========================================
   CONTACTO Y FORMULARIO
========================================= */
.contact {
    background-color: var(--color-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
}

.contact-form-container {
    background: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}

.intelligent-form {
    margin-top: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-primary);
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
}

.btn-full {
    width: 100%;
    margin-top: 10px;
}

/* =========================================
   BOTÓN FLOTANTE (IR ARRIBA)
========================================= */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--color-action);
    color: var(--color-primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 999;
    transition: all 0.3s ease;
}

.scroll-top-btn:hover {
    transform: translateY(-5px);
    background-color: var(--color-white);
}

/* =========================================
   FOOTER (PIE DE PÁGINA 4 COLUMNAS)
========================================= */
.main-footer {
    background-color: #030825; /* Tono más oscuro que el primario para contraste */
    color: var(--color-white);
    padding: 80px 0 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding-bottom: 60px;
}

.footer-col h4 {
    color: var(--color-action);
    margin-bottom: 25px;
    font-size: 1.2rem;
}

.footer-logo {
    max-width: 180px;
    margin-bottom: 15px;
}

.slogan {
    font-style: italic;
    color: rgba(255,255,255,0.8);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

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

.social-links a {
    color: var(--color-primary);
    background-color: var(--color-white);
    padding: 5px 12px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background 0.3s;
}

.social-links a:hover {
    background-color: var(--color-action);
}

.location-col p {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 10px;
    color: rgba(255,255,255,0.85);
}

.map-link {
    color: var(--color-action);
    text-decoration: underline;
    font-size: 0.9rem;
    display: inline-block;
    margin-bottom: 15px;
}

.location-col a[href^="mailto"] {
    color: var(--color-white);
    text-decoration: none;
    transition: color 0.3s;
}

.location-col a[href^="mailto"]:hover {
    color: var(--color-action);
}

.mt-15 { margin-top: 15px; }

.links-col ul {
    list-style: none;
}

.links-col li {
    margin-bottom: 12px;
}

.links-col a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s, padding-left 0.3s;
}

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

.separator {
    height: 1px;
    background-color: rgba(255,255,255,0.2);
    margin: 20px 0;
}

.schedule p {
    margin-bottom: 15px;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.85);
}

.btn-whatsapp-footer {
    background-color: #25D366;
    color: white;
    display: inline-block;
    padding: 12px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 15px;
    transition: background 0.3s;
}

.btn-whatsapp-footer:hover {
    background-color: #1ebe5d;
}

.footer-bottom-copy {
    background-color: #020412;
    text-align: center;
    padding: 20px 0;
}

.footer-bottom-copy p {
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
    margin: 0;
}
/* =========================================
   MODALES (VENTANAS EMERGENTES)
========================================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(8, 18, 75, 0.85); /* Usa tu azul principal con transparencia */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-white);
    width: 90%;
    max-width: 450px;
    padding: 40px;
    border-radius: 15px;
    position: relative;
    transform: translateY(-30px);
    transition: all 0.4s ease;
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-large {
    max-width: 800px;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 25px;
    font-size: 2.5rem;
    color: #999;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s;
}

.close-modal:hover {
    color: var(--color-action); /* Pinta la "X" de amarillo al pasar el mouse */
}

/* Estilos de la Calculadora */
.calc-group { margin-bottom: 25px; }
.calc-group label { display: block; font-weight: 600; margin-bottom: 10px; color: var(--color-primary); }
.input-prefix { display: flex; align-items: center; border: 2px solid #ddd; border-radius: 8px; overflow: hidden; }
.input-prefix span { background: #f8f9fa; padding: 12px 20px; font-weight: 800; color: var(--color-primary); border-right: 1px solid #ddd; }
.input-prefix input { border: none; padding: 12px; width: 100%; font-size: 1.2rem; outline: none; }
.calc-result { margin-top: 25px; text-align: center; padding: 25px; background: #f0f2eb; border-radius: 10px; border: 1px solid #d4dbc1; }
.monto-minimo { font-size: 3rem; color: var(--color-accent); margin: 5px 0; font-weight: 800;}
.monto-ahorro { color: var(--color-primary); font-size: 1.3rem; }
.nota-retorno { font-size: 0.9rem; color: #555; font-style: italic; margin-bottom: 20px; margin-top: 15px;}

/* Estilos de Seguridad */
.comparison-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.comp-card { background: var(--color-light); padding: 25px; border-radius: 10px; text-align: center; border: 1px solid #eee; }
.comp-icon { font-size: 3rem; margin-bottom: 15px; }
.comp-card h3 { color: var(--color-primary); font-size: 1.1rem; margin-bottom: 10px; }
.comp-card p { font-size: 0.9rem; color: #555; line-height: 1.6;}

/* =========================================
   LÍNEA DE TIEMPO (PORTAFOLIO DE PROYECTOS)
========================================= */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 30px;
}

/* La línea vertical principal */
.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 8px; /* Ubicación de la línea */
    width: 4px;
    background: var(--color-primary);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
}

/* El punto amarillo en la línea */
.timeline-dot {
    position: absolute;
    left: -32px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--color-action);
    border: 4px solid var(--color-white);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--color-primary);
    z-index: 2;
}

.timeline-date {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 10px;
    line-height: 1;
}

.timeline-content {
    background: var(--color-white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.06);
    border-left: 5px solid var(--color-action);
}

.timeline-content h3 {
    color: var(--color-primary);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* Etiquetas del proyecto (Potencia, Lugar, Cliente) */
.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.meta-badge {
    background: #f0f2eb;
    color: var(--color-primary);
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

.meta-badge.power { background: rgba(255, 193, 7, 0.2); }

/* Carrusel Horizontal Táctil (Sin usar JavaScript pesado) */
.gallery-carousel {
    display: flex;
    overflow-x: auto;
    gap: 15px;
    padding-bottom: 15px;
    margin-bottom: 20px;
    scroll-snap-type: x mandatory; /* Hace que el deslizamiento encaje perfecto en cada foto */
    scrollbar-width: thin;
    scrollbar-color: var(--color-action) #eee;
}

.gallery-carousel::-webkit-scrollbar { height: 8px; }
.gallery-carousel::-webkit-scrollbar-track { background: #eee; border-radius: 4px; }
.gallery-carousel::-webkit-scrollbar-thumb { background: var(--color-action); border-radius: 4px; }

.gallery-carousel img {
    flex: 0 0 85%; /* En celulares, muestra el 85% de la foto para insinuar que hay más a la derecha */
    max-width: 350px;
    height: 220px;
    object-fit: cover;
    border-radius: 8px;
    scroll-snap-align: center;
}

@media (min-width: 768px) {
    .gallery-carousel img { flex: 0 0 45%; } /* En PC muestra 2 fotos a la vez */
}

/* Frase Testimonial */
.client-quote {
    font-style: italic;
    color: #555;
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 0 10px 10px 0;
    border-left: 3px solid var(--color-accent);
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}
/* =========================================
   MEDIA QUERIES (RESPONSIVO MÓVIL)
========================================= */
@media (max-width: 992px) {
    .contact-grid, .ti-container {
        grid-template-columns: 1fr;
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .safety-container {
        flex-direction: column;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .main-nav ul {
    display: flex; /* <-- ¡Esta es la llave mágica que los vuelve a mostrar! */
        flex-direction: column;
        align-items: flex-start;
        padding-left: 40px;
        gap: 30px;
        margin-top: 20px; /* Un poco de aire arriba para que no pegue con el borde */}
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    /* NUEVAS REGLAS: Apila los QR en celulares */
    .logos-certificacion {
        flex-direction: column; /* Pone uno debajo del otro */
        align-items: center; /* Los centra en la pantalla */
        gap: 20px; /* Reduce el espacio entre ellos */
    }

    .logo-placeholder {
        width: 100%; /* Toma el ancho disponible */
        max-width: 280px; /* Pero evita que el QR se vuelva gigante en la pantalla */
    }
    /* =========================================
   BOTÓN FLOTANTE (IR ARRIBA)
========================================= */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--color-action);
    color: var(--color-primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 999;
    transition: all 0.3s ease;
    
    /* Nuevas reglas: Empieza oculto */
    opacity: 0;
    visibility: hidden;
    pointer-events: none; /* Evita que se le dé clic por accidente si está invisible */
}

.scroll-top-btn:hover {
    transform: translateY(-5px);
    background-color: var(--color-white);
}

/* Esta clase se la pone el JavaScript cuando hacemos scroll */
.scroll-top-btn.mostrar {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
}