/* Modern CSS Reset & Custom Properties - Light Premium Aesthetic */
:root {
    --primary: #c62828; /* Deeper, more premium red */
    --primary-hover: #b71c1c;
    --primary-light: rgba(198, 40, 40, 0.1);
    --dark: #0a0a0a; /* True deep black/charcoal for text */
    --dark-surface: #f8f9fa; /* Light gray for cards and surfaces */
    --dark-border: rgba(0, 0, 0, 0.08); /* Subtle dark border for light theme */
    --light: #ffffff; /* Pure white background */
    --light-dim: #4a4a4a; /* Dark gray for secondary text */
    
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    
    /* Strict local system font stack for performance and no external requests */
    --font-system: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* Glass Navbar */
.glass-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--dark-border);
    transition: var(--transition-smooth);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--dark);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.brand-logo-img {
    height: 40px;
    width: auto;
    max-width: 100px;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--light-dim);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition-smooth);
}

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

.btn-primary-sm {
    background-color: var(--primary);
    color: #fff;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary-sm:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 15px rgba(198, 40, 40, 0.3);
}



/* Mobile Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--dark);
    margin: 5px 0;
    transition: var(--transition-smooth);
}

/* Hero Section */
.hero-premium {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    overflow: hidden;
    background-color: var(--dark-surface);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(198,40,40,0.05) 0%, transparent 40%),
                radial-gradient(circle at bottom left, rgba(0,0,0,0.02) 0%, transparent 40%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    background-color: var(--light);
    border: 1px solid var(--dark-border);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.hero-premium h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
    color: var(--dark);
}

.hero-premium p {
    font-size: 1.1rem;
    color: var(--light-dim);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-bounce);
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 10px 30px rgba(198, 40, 40, 0.3);
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(198, 40, 40, 0.4);
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: var(--light);
    color: var(--dark);
    border: 1px solid var(--dark-border);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.btn-secondary:hover {
    background-color: #f1f1f1;
    border-color: #dcdcdc;
    transform: translateY(-5px);
}

/* Sections Common */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
}

.section-header p {
    color: var(--light-dim);
    font-size: 1.1rem;
}

/* Services Grid */
.services-section {
    background-color: var(--light);
}

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

.value-card {
    background-color: var(--light);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    border-bottom: 4px solid var(--primary);
    transition: var(--transition-smooth);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.values-accordion {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.value-btn {
    background: rgba(0,0,0,0.02);
    border: 1px solid var(--dark-border);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.value-btn:hover {
    background: rgba(0,0,0,0.05);
}

.value-btn summary {
    font-weight: 600;
    color: var(--dark);
    list-style: none;
    outline: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.value-btn summary::-webkit-details-marker {
    display: none;
}

.value-btn p {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: #555;
    line-height: 1.5;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.glass-card {
    background: var(--light);
    border: 1px solid var(--dark-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.glass-card:hover {
    transform: translateY(-10px);
    border-color: rgba(198, 40, 40, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.card-img-wrapper {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.card-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.glass-card:hover .card-img-wrapper img {
    transform: scale(1.05);
}

.card-body {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-body h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--dark);
}

.card-body p {
    color: var(--light-dim);
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    margin-bottom: 2rem;
    color: var(--dark);
}

.feature-list li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.link-arrow {
    margin-top: auto;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: var(--transition-smooth);
}

.link-arrow span {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.link-arrow:hover {
    color: var(--primary-hover);
}

.link-arrow:hover span {
    transform: translateX(5px);
}

/* Trust Section */
.trust-section {
    background-color: var(--dark-surface);
}

.trust-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

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

.trust-text p {
    color: var(--light-dim);
    font-size: 1.1rem;
}

.features-wrapper {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--light);
    border: 1px solid var(--dark-border);
    border-radius: var(--border-radius-md);
    transition: var(--transition-smooth);
    box-shadow: 0 5px 15px rgba(0,0,0,0.02);
}

.feature-item:hover {
    border-color: rgba(198, 40, 40, 0.2);
    transform: translateX(10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.feature-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    background: var(--dark-surface);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--dark-border);
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.feature-item p {
    color: var(--light-dim);
    font-size: 0.95rem;
}

/* Premium Footer */
.footer-premium {
    background-color: #1a1a1a;
    color: #fff;
    padding: 5rem 2rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand {
    max-width: 350px;
}

.footer-brand .footer-logos {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: center;
}

.footer-brand .footer-logos img {
    height: 50px;
    width: auto;
    border-radius: 8px;
    background-color: #fff;
    padding: 2px;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-links-group {
    display: flex;
    gap: 4rem;
}

.footer-col h4 {
    color: #fff;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

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

.footer-col li {
    margin-bottom: 0.8rem;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: var(--transition-smooth);
    font-size: 0.95rem;
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

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

/* Responsive */
@media (max-width: 992px) {
    .trust-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(255,255,255,0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        padding: 3rem 2rem;
        gap: 2.5rem;
        transition: var(--transition-smooth);
        border-top: 1px solid var(--dark-border);
    }
    
    .nav-menu.open {
        left: 0;
    }
    
    .nav-toggle {
        display: block;
    }

    .hero-premium h1 {
        font-size: 2.5rem;
    }
    
    .footer-links-group {
        flex-direction: column;
        gap: 2rem;
    }
}

/* PDF Preview Modal */
.pdf-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.pdf-modal.open {
    display: flex;
    opacity: 1;
}

.pdf-modal-content {
    background-color: var(--light);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 1000px;
    height: 85%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border: 1px solid var(--dark-border);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.pdf-modal.open .pdf-modal-content {
    transform: scale(1);
}

.pdf-modal-header {
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--dark-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--light-surface);
}

.pdf-modal-title {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--dark);
}

.pdf-modal-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pdf-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-text);
    transition: var(--transition-smooth);
    line-height: 1;
}

.pdf-close-btn:hover {
    color: var(--primary);
}

.pdf-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background-color: #525659; /* Standard PDF viewer gray background */
}

/* Nuevos Estilos para Valores */
.values-grid-5 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.value-card-premium {
    background: var(--light);
    padding: 2.5rem 1.5rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--dark-border);
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    transition: var(--transition-smooth);
}
.value-card-premium:hover {
    transform: translateY(-5px);
    border-color: rgba(198, 40, 40, 0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}
.value-icon-container {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background-color: var(--dark-surface);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    border: 1px solid var(--dark-border);
    transition: var(--transition-smooth);
}
.value-card-premium:hover .value-icon-container {
    background-color: var(--primary);
    color: var(--light);
}
.value-card-premium h3 {
    margin: 0.5rem 0 1rem;
    color: var(--dark);
    font-size: 1.1rem;
    font-weight: 700;
}
.value-card-premium p {
    color: var(--light-dim);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Brands Carousel */
.brands-section {
    background-color: var(--light);
    border-top: 1px solid var(--dark-border);
    border-bottom: 1px solid var(--dark-border);
    padding: 3rem 0;
    overflow: hidden;
}
.brands-title {
    text-align: center;
    font-size: 1.1rem;
    color: var(--light-dim);
    margin-bottom: 2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.brand-carousel-wrapper {
    width: 100%;
    overflow: hidden;
    position: relative;
}
/* Gradientes para el efecto de fade en los bordes */
.brand-carousel-wrapper::before,
.brand-carousel-wrapper::after {
    content: "";
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
}
.brand-carousel-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--light) 0%, rgba(255,255,255,0) 100%);
}
.brand-carousel-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--light) 0%, rgba(255,255,255,0) 100%);
}
.brand-carousel {
    display: flex;
    width: calc(250px * 18); /* 9 logos * 2 sets * width approx */
    animation: scroll 40s linear infinite; /* Slower for 9 items */
    align-items: center;
}
.brand-carousel:hover {
    animation-play-state: paused;
}
.brand-carousel-item {
    width: 250px;
    display: flex;
    justify-content: center;
    padding: 0 2rem;
}
.brand-carousel-item svg, .brand-carousel-item img {
    height: 40px;
    max-width: 150px;
    opacity: 0.5;
    filter: grayscale(100%);
    transition: var(--transition-smooth);
}
.brand-carousel-item:hover svg, .brand-carousel-item:hover img {
    opacity: 1;
    filter: grayscale(0%);
}
@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-250px * 9)); } /* Move exactly 9 items to loop seamlessly */
}

/* Galería de Animación Vertical (CSS Sprites) */
.sprite-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.sprite-card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid var(--dark-border);
}

.sprite-frame {
    width: 100%;
    aspect-ratio: 2 / 1; /* Match the real aspect ratio of each section (853x426) */
    background-size: 100% 300%; 
    background-position: top; 
    background-repeat: no-repeat;
    animation: pan-vertical 15s infinite ease-in-out;
}

.sprite-frame.delay-1 { animation-delay: 0s; }
.sprite-frame.delay-2 { animation-delay: -5s; }
.sprite-frame.delay-3 { animation-delay: -10s; }

@keyframes pan-vertical {
    0%, 20% { background-position: 0% 0%; }
    33%, 53% { background-position: 0% 50%; }
    66%, 86% { background-position: 0% 100%; }
    100% { background-position: 0% 0%; }
}

/* Masonry Gallery */
.masonry-gallery {
    column-count: 3;
    column-gap: 1rem;
}
.masonry-item {
    break-inside: avoid;
    margin-bottom: 1rem;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}
.masonry-item:hover {
    transform: scale(1.02);
}
.masonry-item img {
    width: 100%;
    display: block;
}
@media (max-width: 768px) {
    .masonry-gallery {
        column-count: 2;
    }
}
@media (max-width: 480px) {
    .masonry-gallery {
        column-count: 1;
    }
}