html {
    scroll-behavior: smooth;
}

:root {
    --bg-color: #f8fafc;
    --card-bg: #ffffff; /* Elevated White Panels */
    --accent-blue: #2563eb; 
    --accent-cyan: #0891b2;
    --accent-steel: #64748b;
    --text-primary: #0f172a; /* Industrial Dark Text */
    --text-secondary: #475569;
    --border-color: #e2e8f0;
    --glass-blur: blur(12px);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.25s ease;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    scroll-snap-type: y proximity;
}

/* Background with technical grid */
#bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: #f8fafc;
}

#bg::before {
    display: none; /* Cuadriculado suprimido por solicitud */
}

#bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/hero_bg.png') center/cover no-repeat;
    opacity: 0.08; /* Slightly increased for more presence of real assets */
    filter: grayscale(100%) contrast(1.1);
}

/* Typography - Technical & Precise */
h1, h2, h3, h4 {
    font-weight: 600;
    letter-spacing: -0.01em;
    text-transform: none;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Layout */
#wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header#header {
    min-height: 85vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    text-align: left;
    padding: 10rem 0 6rem;
    scroll-snap-align: start;
}

/* Hero Specific Typography & Layout */
.hero-content {
    max-width: 800px;
    width: 100%;
}

.hero-subtitle {
    letter-spacing: 0.4em;
    text-transform: uppercase;
    font-size: 0.7rem;
    color: var(--accent-blue);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 2rem;
    font-weight: 700;
    color: #0f172a;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 3.5rem;
    line-height: 1.8;
}

/* Hero Actions */
.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--accent-blue);
    color: #fff;
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 2px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--accent-cyan);
}

.btn-outline {
    background: transparent;
    padding: 1rem 2.5rem;
    border: 1px solid #cbd5e1;
    border-radius: 2px;
    color: #475569;
    text-align: center;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.btn-outline:hover {
    background: #f1f5f9;
    color: #0f172a;
}

/* Unified Professional Navigation */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    height: 70px;
    box-shadow: var(--shadow-sm);
}

#main-nav .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#main-nav .logo-area {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.1em;
}

#main-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}

#main-nav .nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 0.8rem;
    border: 1px solid transparent; /* Prepare for active border */
    transition: var(--transition);
}

/* Standard highlight for hovered and active items */
#main-nav .nav-links a:hover,
#main-nav .nav-links a.active {
    color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid var(--accent-blue);
    border-radius: 2px;
}

/* Mobile Navigation Toggle */
.hamburger {
    display: none;
    font-size: 1.5rem;
    color: var(--accent-blue);
    cursor: pointer;
}

.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: none;
    opacity: 0;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
}

.mobile-overlay.active {
    display: flex;
}

.close-mobile {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 3rem;
    cursor: pointer;
}

.mobile-nav-links {
    list-style: none;
    text-align: center;
}

.mobile-nav-links li {
    margin: 2rem 0;
}

.mobile-nav-links a {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
}

@media (max-width: 768px) {
    body { scroll-snap-type: none !important; }
    article { scroll-snap-align: none !important; }

    .nav-links { display: none !important; }
    .hamburger { display: block; }
    
    #wrapper { padding: 0 1rem; width: 100%; overflow-x: hidden; }
    #main-nav .container { padding: 0 1rem; }
    
    header#header { padding: 6rem 0 3rem; text-align: center; align-items: center; justify-content: center; width: 100%; min-height: auto; }
    
    .hero-content {
        padding: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
        margin-bottom: 1.5rem;
        word-wrap: normal;
        overflow-wrap: normal;
        hyphens: none;
        max-width: 100%;
    }
    
    .mobile-break {
        display: block !important;
    }
    
    .hero-desc {
        font-size: 1rem;
        margin-bottom: 2rem;
        max-width: 100%;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 0.8rem;
    }
    
    .btn-primary, .btn-outline {
        width: 100%;
        padding: 1rem;
        box-sizing: border-box;
    }
    
    article { padding: 2.5rem 1.5rem !important; margin-bottom: 1.5rem; width: 100%; box-sizing: border-box; }
    article h2 { font-size: 1.8rem; }
    
    .grid-3, .services-grid, .catalog-grid, .hardware-brands { 
        grid-template-columns: 1fr !important; 
        gap: 1.25rem !important; 
        width: 100%;
    }
    
    .hero-stats { 
        grid-template-columns: 1fr; 
        margin-top: 2rem;
        padding-top: 2rem;
        gap: 1rem;
    }
    
    .product-card, .service-card, .brand-block {
        width: 100%;
        margin: 0;
    }

    .mobile-overlay.active {
        display: flex;
        opacity: 1;
    }
}

.mobile-break {
    display: none;
}

.hero-stats {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 1.5rem;
    width: 100%;
    margin-top: 5rem;
    border-top: 1px solid var(--border-color);
    padding: 3rem 0.5rem 1.5rem;
}

.hero-stats::-webkit-scrollbar {
    height: 6px;
}
.hero-stats::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.02);
    border-radius: 10px;
}
.hero-stats::-webkit-scrollbar-thumb {
    background: rgba(37, 99, 235, 0.2);
    border-radius: 10px;
}
.hero-stats::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

.stat-item {
    flex-shrink: 0;
    width: calc(33.333% - 1rem); /* Standard size on PC */
    min-width: 260px; /* Force sideways overflow on small screens */
    scroll-snap-align: start;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    transition: var(--transition);
}

.stat-item:hover {
    background: rgba(37, 99, 235, 0.05);
    border-color: var(--accent-blue);
}

.stat-item i {
    color: var(--accent-blue);
    font-size: 1.25rem;
}

.stat-item strong {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.logo-container {
    padding: 2rem;
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    margin-bottom: 2rem;
}

.logo-container span {
    font-size: 3rem;
    color: var(--accent-blue);
}

/* Section Layout Utilities */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 2rem;
}

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

.service-card {
    padding: 2.5rem;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--accent-blue);
    background: #fff;
    box-shadow: var(--shadow-md);
}

.service-card i {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
    display: block;
}

.service-card h4 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.industry-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.industry-tag {
    padding: 0.8rem 1.5rem;
    background: #f1f5f9;
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
}

.industry-tag:hover {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

nav {
    display: none;
}

/* Main Content - Floating Panels */
#main {
    padding-bottom: 8rem;
    display: flex;
    flex-direction: column;
    gap: 4rem; /* Defined spacing between panels */
}

article {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px; /* More formal, less rounded */
    padding: 4rem;
    box-shadow: var(--shadow-lg); /* The "floating" effect */
    transition: var(--transition);
    scroll-snap-align: start;
}

article:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Dynamic Reveal Animation (Desktop Only to prevent mobile hiding bugs) */
@media (min-width: 769px) {
    article {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                    transform 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                    box-shadow 0.25s ease;
    }

    article.is-visible {
        opacity: 1;
        transform: translateY(0);
    }
}

article h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

article h2::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 3rem;
    height: 4px;
    background: var(--accent-blue);
    border-radius: 2px;
}

.image.main {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 3rem;
    box-shadow: var(--shadow-md);
    background: #000; /* Anchor for real photos */
}

.image.main img {
    filter: contrast(1.05) brightness(0.95); /* Engineering photographic polish */
    transition: var(--transition);
    display: block;
    width: 100%;
}

.image.main::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0) 0%, rgba(0,0,0,0.1) 100%);
    pointer-events: none;
}


/* Lists and details */
article ul {
    margin: 1.5rem 0;
    list-style: none;
}

article li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

article li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
}

h4 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin: 2rem 0 1rem;
}

/* Form Styles */
form {
    display: grid;
    gap: 1.5rem;
}

.field-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .field-group {
        grid-template-columns: 1fr;
    }
}

.field label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

input, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.1);
}

input[type="submit"] {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    color: white;
    font-weight: 600;
    cursor: pointer;
    border: none;
    padding: 1rem;
    margin-top: 1rem;
}

input[type="submit"]:hover {
    filter: brightness(1.1);
    transform: scale(1.02);
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 4rem;
    height: 4rem;
    background: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    text-decoration: none;
    z-index: 100;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Footer */
footer {
    text-align: center;
    padding: 4rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.copyright {
    margin-bottom: 0.5rem;
}

/* Brand Separation */
.hardware-brands {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.brand-block {
    background: rgba(255, 255, 255, 0.02);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.brand-block:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-blue);
}

.brand-block h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.brand-block ul {
    list-style: none;
    padding: 0;
}

.brand-block li {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Catalog Styles */
.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 2px;
    padding: 1.5rem;
    text-align: left;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-blue);
}

/* Project Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.gallery-item {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-blue);
}

.gallery-item .gallery-img-container {
    width: 100%;
    height: 260px;
    overflow: hidden;
    background: #f1f5f9;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
    transition: var(--transition);
}

.gallery-item:hover img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.gallery-item .caption {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.gallery-item .caption h5 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
}

.gallery-item .caption p {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin: 0;
    font-family: inherit;
    font-weight: 600;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin: 0.8rem 0;
}

.order-btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    text-decoration: none;
    border-radius: 0.2rem;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

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

/* Admin Styles */
.admin-link {
    display: inline-block;
    margin-top: 2rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    opacity: 0.3;
}

.admin-link:hover {
    opacity: 1;
}

.admin-panel {
    max-width: 1000px;
    margin: 4rem auto;
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    padding: 2rem;
    border-radius: 1rem;
}

table.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
}

.admin-table th, .admin-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    color: var(--accent-blue);
}