/* ===== :ROOT - VARIABLES GLOBALES ===== */
:root {
    /* Paleta de Colores */
    --color-primary: #0D6A35; /* Verde principal más corporativo */
    --color-primary-dark: #074B24;
    --color-secondary: #2E8B57; /* Verde secundario para acentos */
    --color-accent: #FFC107; /* Amarillo/Dorado para llamadas a la acción */
    --color-accent-hover: #E0A800;
    --color-text-dark: #1A2E1C; /* Negro desaturado para texto */
    --color-text-light: #F8F9FA;
    --color-text-muted: #6c757d;
    --color-background: #F7F9F7;
    --color-surface: #FFFFFF; /* Para tarjetas y fondos elevados */
    --color-border: #DEE2E6;
    --color-facebook: #3b5998;
    --color-whatsapp: #25D366; 
    --gradient-instagram: linear-gradient(45deg, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 70%, #285aeb 100%);
    /* MODIFICACIÓN: Añadido el color verde lima chillón */
    --color-thv-lime: #ADFF2F;
    
    /* Tipografía */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    
    /* Tamaños de Fuente */
    --font-size-base: 1rem; /* 16px */
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-h1: clamp(2.5rem, 6vw, 4rem);
    --font-size-h2: clamp(2rem, 5vw, 3rem);
    --font-size-h3: 1.5rem;

    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --section-padding: 5rem var(--spacing-md);

    /* Radios y Sombras */
    --border-radius: 8px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);

    /* Transiciones */
    --transition-fast: all 0.2s ease-in-out;
    --transition-smooth: all 0.3s ease-in-out;
    
    /* Z-Index */
    --z-index-back: -1;
    --z-index-base: 1;
    --z-index-header: 1000;
    --z-index-modal: 2000;
    --z-index-hamburger: 9000;
    --z-index-preloader: 9001;
}

/* ===== RESETEO Y ESTILOS BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

body.modal-open,
body.mobile-nav-open {
    overflow: hidden;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

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

/* ===== KEYFRAMES PARA ANIMACIONES ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes preloader-fade-out {
    to { opacity: 0; visibility: hidden; }
}

@keyframes preloader-spin {
    to { transform: rotate(360deg); }
}

/* ===== PRELOADER Y SCROLL INDICATOR ===== */
.preloader {
    position: fixed;
    inset: 0;
    background-color: var(--color-primary-dark);
    z-index: var(--z-index-preloader);
    display: grid;
    place-content: center;
    text-align: center;
    animation: preloader-fade-out 0.5s ease-in-out 1.5s forwards;
}
.preloader-logo {
    width: 150px;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease;
}
.preloader-logo img { width: 100%; }
.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: preloader-spin 1s linear infinite;
    margin: 0 auto;
}

.scroll-progress-indicator {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background-color: var(--color-accent);
    z-index: var(--z-index-header);
    transform-origin: left;
    scale: 0 1;
    animation: scroll-progress linear;
    animation-timeline: scroll(root);
}
@keyframes scroll-progress { from { scale: 0 1; } to { scale: 1 1; } }

/* ===== HEADER ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-sm) 0;
    z-index: var(--z-index-header);
    background: var(--color-primary-dark);
    background: linear-gradient(to right, #074B24, #0D6A35, #074B24);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}
.site-logo img {
    height: 45px;
    display: block;
    transition: var(--transition-fast);
}
.site-logo:hover img {
    transform: scale(1.05);
}

/* --- Navegación Desktop --- */
.desktop-nav {
    display: none; 
}
@media (min-width: 960px) {
    .header-container {
        gap: var(--spacing-lg);
    }
    .back-button {
       margin-right: auto;
    }
    .desktop-nav {
        display: flex;
        gap: var(--spacing-lg);
    }
}
.nav-link {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: var(--transition-fast);
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease-in-out;
}
.nav-link:hover,
.nav-link:focus-visible {
    color: var(--color-text-light);
    transform: translateY(-2px);
}
.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ===== MENÚ HAMBURGUESA ===== */
.mobile-nav-toggle {
    display: block; 
}
@media (min-width: 960px) {
    .mobile-nav-toggle {
        display: none;
    }
}

.hamburger-label {
    border: none;
    background: transparent;
    margin: 0; 
    position: relative;
    z-index: var(--z-index-hamburger);
    display: flex;
    flex-direction: column;
    width: 30px;
    height: 24px;
    cursor: pointer;
    justify-content: space-between;

    margin-right: 10px;
}
.hamburger-line {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-text-light);
    border-radius: 3px;
    transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
}
.hamburger-label[aria-expanded="true"] .line-1 {
    transform: translateY(10.5px) rotate(45deg);
}
.hamburger-label[aria-expanded="true"] .line-2 {
    opacity: 0;
}
.hamburger-label[aria-expanded="true"] .line-3 {
    transform: translateY(-10.5px) rotate(-45deg);
}

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(26, 46, 28, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: calc(var(--z-index-header) - 1);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    display: grid;
    place-items: center;
}

body.mobile-nav-open .mobile-nav-overlay {
    opacity: 1;
    visibility: visible;
}
body.mobile-nav-open ~ main,
body.mobile-nav-open ~ footer {
    filter: blur(5px);
}
.mobile-nav-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}
.mobile-nav-link {
    font-family: var(--font-heading);
    font-size: var(--font-size-h2);
    color: var(--color-text-light);
    text-decoration: none;
    transition: var(--transition-fast);
    transform: translateY(20px);
    opacity: 0;

    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 8px 12px;
    border-radius: 6px;
}

body.mobile-nav-open .mobile-nav-link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.mobile-nav-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-nav-link:nth-child(2) { transition-delay: 0.2s; }
.mobile-nav-link:nth-child(3) { transition-delay: 0.3s; }

.mobile-nav-divider {
    width: 100px;
    border-color: rgba(255, 255, 255, 0.2);
}
.mobile-nav-socials {
    display: flex;
    gap: var(--spacing-lg);
    transform: translateY(20px);
    opacity: 0;
    transition: opacity 0.4s ease 0.4s, transform 0.4s ease 0.4s;
}

body.mobile-nav-open .mobile-nav-socials {
    opacity: 1;
    transform: translateY(0);
}

/* ===== SECCIONES DE CONTENIDO ===== */
.content-section {
    padding: var(--section-padding);
}
.section-header {
    margin-bottom: var(--spacing-xl);
}
.section-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-h2);
    color: var(--color-primary-dark);
}
.section-subtitle {
    font-size: var(--font-size-xl);
    max-width: 700px;
    margin: var(--spacing-sm) auto 0;
    color: var(--color-text-muted);
}
strong {
    font-weight: 700;
    color: var(--color-primary);
}

/* ===== BANNER PRINCIPAL ===== */
.hero-banner {
    position: relative;
    height: 70vh;
    min-height: 500px;
    display: grid;
    place-items: center;
    text-align: center;
    padding: var(--spacing-md);
    overflow: hidden;
}
.hero-parallax-bg {
    background-image: url('/IMG/Fondo1AgricolaPARALLAX.jpg');
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: var(--z-index-back);
    animation: scale-in 20s ease-in-out infinite alternate;
}
@keyframes scale-in {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}
.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(13, 106, 53, 0.6);
    z-index: var(--z-index-base);
}
.hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-text-light);
    animation: fadeInUp 1s ease-out;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.hero-logo {
    width: clamp(150px, 30vw, 220px);
    margin-bottom: var(--spacing-md);
}
.hero-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-h1);
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    max-width: 800px;
}

/* ===== SECCIÓN PRODUCTOS ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}
.product-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}
.product-card-image-wrapper {
    overflow: hidden;
}
.product-card-img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.product-card:hover .product-card-img {
    transform: scale(1.05);
}
.product-card-content {
    padding: var(--spacing-lg);
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.product-card-title {
    font-size: var(--font-size-h3);
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-xs);
}
.product-card-capacity {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

/* ===== SECCIÓN PARALLAX ===== */
.parallax-section {
    position: relative;
    display: grid;
    place-items: center;
    padding: 8rem var(--spacing-md);
    min-height: 50vh;
    color: var(--color-text-light);
    text-align: center;
}
.parallax-background {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: var(--z-index-back);
}
.parallax-bg-1 { background-image: url('/IMG/Fondo1AgricolaPARALLAX.jpg'); }
.parallax-bg-2 { background-image: url('/IMG/Fondo2AgricolaPARALLAX.jpg'); }
.parallax-bg-3 { background-image: url('/IMG/Fondo3AgricolaPARALLAX.jpg'); }
.parallax-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(26, 46, 28, 0.7);
    z-index: 0;
}
.parallax-content {
    position: relative;
    z-index: var(--z-index-base);
    max-width: 800px;
}
.parallax-title {
    font-size: var(--font-size-h2);
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.parallax-text {
    font-size: var(--font-size-xl);
    opacity: 0.9;
}

/* ===== SECCIÓN SOBRE NOSOTROS ===== */
.differentiators-list {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
}
.differentiator-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-lg);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}
.differentiator-item:last-child {
    border-bottom: none;
}
.differentiator-item i {
    font-size: 1.5rem;
    color: var(--color-secondary);
    width: 30px;
    text-align: center;
}
.location-map-wrapper {
    margin-top: var(--spacing-xl);
}
.location-title {
    font-size: var(--font-size-h3);
    color: var(--color-primary);
}
.location-subtitle {
    margin-bottom: var(--spacing-lg);
}
.map-container {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    aspect-ratio: 16 / 9;
}
.map-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ===== PÁGINA DE PRODUCTO ===== */
.product-detail-section {
    padding: var(--section-padding);
    background-color: var(--color-surface);
}
.product-detail-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: 60px;
}
.product-header {
    text-align: center;
    max-width: 800px;
    margin-bottom: var(--spacing-lg);
}
.product-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-h2);
    color: var(--color-primary-dark);
}
.product-description {
    font-size: var(--font-size-lg);
    margin-top: var(--spacing-sm);
    color: var(--color-text-muted);
}
.product-image-container {
    width: 100%;
    max-width: 700px;
}
.product-main-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}
.color-swatches {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    justify-content: center;
}
.color-swatch {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid var(--color-border);
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}
.color-swatch:hover, .color-swatch:focus-visible {
    transform: scale(1.15);
    box-shadow: 0 0 0 4px rgba(13, 106, 53, 0.5);
    outline: none;
}
.color-swatch.active {
    transform: scale(1.15);
    box-shadow: 0 0 0 4px var(--color-primary);
    border-color: var(--color-primary);
}
.product-details-grid {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-top: var(--spacing-lg);
}
.specs-column {
    width: 100%;
    max-width: 700px;
    background-color: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}
.product-specs-title {
    text-align: center;
    font-family: var(--font-heading);
    font-size: var(--font-size-h3);
    color: var(--color-primary);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}
.product-specs-list {
    list-style: none;
    margin-bottom: 0;
    padding-left: 0;
}
.product-specs-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}
.product-specs-list li:last-child { border-bottom: none; }
.product-specs-list strong {
    margin-right: 0;
    color: var(--color-primary-dark);
}
.brochure-column {
    display: flex;
    justify-content: center;
    align-items: start;
    height: 100%;
}
.brochure-download-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}
.brochure-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
}
.brochure-thumbnail-link {
    display: block;
    line-height: 0;
    width: 100%;
    background-color: var(--color-surface);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}
.brochure-thumbnail {
    width: 100%;
    height: 250px; 
    object-fit: contain;
    transition: var(--transition-smooth);
}
.brochure-thumbnail-link:hover .brochure-thumbnail {
    transform: scale(1.03);
}
.brochure-download-container .btn {
    width: 100%;
    margin-top: var(--spacing-sm);
}
.brochure-download-container .btn i {
    margin-right: var(--spacing-sm);
}
.product-consult-action {
    margin-top: var(--spacing-lg);
    text-align: center;
}
.gallery-section { padding: var(--section-padding); }
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}
.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}
.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}
.gallery-item img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    display: block;
    transition: var(--transition-smooth);
}
.gallery-item-label {
    position: absolute;
    bottom: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    color: var(--color-primary-dark);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0.7rem 1.4rem 0.7rem 2.4rem;
    clip-path: polygon(15% 0, 100% 0, 100% 100%, 0 100%);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}
.gallery-item:hover img {
    transform: scale(1.05);
}
.gallery-item:hover .gallery-item-label {
    background-color: var(--color-accent);
    color: var(--color-text-dark);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}
.back-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}
.back-button:hover {
    color: var(--color-accent);
}

/* ===== FOOTER ===== */
.site-footer {
    background-color: var(--color-text-dark);
    color: var(--color-text-muted);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}
.footer-container {
    max-width: 1100px; 
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}
.footer-logo {
    max-width: 140px;
    margin-bottom: var(--spacing-md);
}
.footer-about p {
    font-size: 0.95rem;
    max-width: 350px;
}
.footer-contact-list {
    list-style: none;
    padding-left: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}
.footer-contact-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}
.footer-contact-list a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}
.footer-contact-list a:hover {
    color: var(--color-accent);
}
.footer-social-icons {
    display: flex;
    gap: var(--spacing-md);
}
.social-icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    color: var(--color-text-light);
    background-color: #495057;
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition-smooth);
}
.social-icon:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
.social-icon-facebook:hover { background-color: var(--color-facebook); }
.social-icon-instagram:hover { background-image: var(--gradient-instagram); }
.social-icon-email:hover { background-color: var(--color-primary); }

/* --- INICIO: ESTILOS MODIFICADOS Y AÑADIDOS PARA EL FOOTER --- */
.footer-bottom {
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* Permite que los elementos pasen a la siguiente línea */
    gap: var(--spacing-sm) var(--spacing-lg); /* Espacio vertical y horizontal */
    font-size: 0.9rem;
}
.credits-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}
.designer-credit a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
}
.designer-credit a:hover {
    color: var(--color-whatsapp);
}
.credit-separator {
    color: var(--color-text-muted);
}
.thv-credit a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-thv-lime);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition-fast);
}
.thv-credit a:hover {
    filter: brightness(1.2);
}
.thv-logo {
    width: 16px;
    height: 16px;
}
/* --- FIN: ESTILOS MODIFICADOS Y AÑADIDOS PARA EL FOOTER --- */

/* ===== BOTONES ===== */
.btn {
    display: inline-block;
    font-family: var(--font-body);
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    transition: var(--transition-smooth);
}
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
}
.btn-primary:hover, .btn-primary:focus-visible {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.btn-secondary {
    background-color: var(--color-text-muted);
    color: var(--color-text-light);
    border-color: var(--color-text-muted);
    cursor: not-allowed;
}
.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-text-dark);
    border-color: var(--color-accent);
}
.btn-accent:hover, .btn-accent:focus-visible {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: var(--color-text-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.btn-outline {
    background-color: transparent;
    color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}
.btn-outline:hover, .btn-outline:focus-visible {
    background-color: var(--color-primary-dark);
    color: var(--color-text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}

/* ===== MODALES (CSS PURO CON :TARGET) ===== */
.modal-wrapper {
    position: fixed;
    inset: 0;
    z-index: var(--z-index-modal);
    display: grid;
    place-items: center;
    padding: var(--spacing-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}
.modal-wrapper:target {
    opacity: 1;
    visibility: visible;
}
.modal-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(26, 46, 28, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    cursor: default;
}
.modal-content {
    position: relative;
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform 0.4s ease;
}
.modal-wrapper:target .modal-content {
    transform: scale(1);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-primary-dark);
}
.modal-title {
    font-size: var(--font-size-xl);
    margin: 0;
    color: var(--color-text-light);
}
.modal-title strong { color: var(--color-accent); }
.modal-close-btn {
    font-size: 2rem;
    color: var(--color-text-light);
    text-decoration: none;
    line-height: 1;
    transition: var(--transition-fast);
}
.modal-close-btn:hover {
    transform: rotate(90deg);
    color: var(--color-accent);
}
.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto; 
}
.contact-modal .modal-body {
    overflow-y: auto;
    max-height: calc(90vh - var(--spacing-md) * 2 - 60px);
}
.spec-list {
    list-style: none;
    padding-left: 0;
}
.spec-list li {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}
.spec-list li:last-child { border: none; }
.spec-list strong { color: var(--color-primary-dark); }

/* ===== FORMULARIO DE CONTACTO ===== */
.contact-form { display: flex; flex-direction: column; gap: var(--spacing-md); }
.form-description { color: var(--color-text-muted); }
.form-label { font-weight: 700; margin-bottom: var(--spacing-xs); display: block; }
.form-input, .form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
    font-size: var(--font-size-base);
}
.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(13, 106, 53, 0.2);
}
.form-submit-btn { width: 100%; }
.form-status {
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-md);
    display: none; 
}
.form-status.success { background-color: #d1e7dd; color: #0f5132; }
.form-status.error { background-color: #f8d7da; color: #842029; }

/* ===== BOTONES FLOTANTES ===== */
.floating-buttons-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.floating-btn {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 2rem;
    box-shadow: var(--shadow-md);
    text-decoration: none;
    transition: all 0.3s ease-in-out;
}
.floating-btn:hover {
    background-color: var(--color-primary-dark);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}
.whatsapp-fab {
    order: 2;
}
.back-to-top-btn {
    order: 1;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out, transform 0.3s ease-in-out;
}
.back-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ===== MEDIA QUERIES DETALLADAS ===== */
@media (max-width: 959px) {
    .back-button-text {
        display: none;
    }
    .product-detail-container {
        margin-top: 40px;
    }
}
@media (min-width: 960px) {
    .product-details-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 960px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-about {
        grid-column: 1 / -1; 
        text-align: center;
    }
    .footer-about p {
        margin-left: auto;
        margin-right: auto;
    }
}
@media (max-width: 768px) {
    :root {
        --section-padding: 3rem var(--spacing-md);
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-contact-list li {
        justify-content: center;
    }
    .footer-social-icons {
        justify-content: center;
    }
    /* --- INICIO: MODIFICACIÓN RESPONSIVE PARA EL FOOTER --- */
    .footer-bottom {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        gap: var(--spacing-md);
    }
    .credits-container {
        justify-content: center;
    }
    /* --- FIN: MODIFICACIÓN RESPONSIVE PARA EL FOOTER --- */
    .parallax-background {
        background-attachment: scroll; 
    }
    .floating-buttons-container {
        right: 15px;
        bottom: 15px;
    }
    .floating-btn {
        width: 55px;
        height: 55px;
        font-size: 1.8rem;
    }
}

/* --- Móviles Pequeños --- */
@media (max-width: 480px) {
    .container {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }
    .hero-title {
        font-size: 2rem;
    }
    .parallax-title {
        font-size: 1.8rem;
    }
    .modal-content {
        max-height: 85vh;
    }
}