/* ===============================================
   Sistema de Facturación Electrónica - Artech Solutions
   Estilos CSS Personalizados
   =============================================== */

/* Variables CSS para colores */
:root {
    --color-primary: #2B4CFF;
    --color-accent: #FF6A00;
    --color-dark: #0F172A;
    --color-light: #F8FAFC;
    --color-whatsapp: #25D366;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-info: #3B82F6;
    --color-muted: #6B7280;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Dark mode variables - DISABLED */
/*
[data-bs-theme="dark"] {
    --color-dark: #F8FAFC;
    --color-light: #1E293B;
    --bs-body-bg: #0F172A;
    --bs-body-color: #E2E8F0;
}
*/

/* Base Styles */
body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* Typography */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-muted);
    margin-bottom: 2rem;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
}

/* Custom Button Styles */
.btn-whatsapp {
    background-color: var(--color-whatsapp);
    border-color: var(--color-whatsapp);
    color: white;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-whatsapp:hover {
    background-color: #1FA851;
    border-color: #1FA851;
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Navigation Styles */
.navbar {
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Logo del navbar - responsive y optimizado */
.navbar-logo {
    height: 40px;
    width: auto;
    max-width: 200px;
    transition: all 0.3s ease;
    /* Asegurar que el logo sea transparente */
    background: transparent;
    /* Filtro para mejor calidad */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* Hover effect para el logo */
.navbar-logo:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

/* Responsive logo - ajustes para tablets */
@media (max-width: 992px) {
    .navbar-logo {
        height: 35px;
        max-width: 180px;
    }
}

/* Responsive logo - ajustes para móviles */
@media (max-width: 576px) {
    .navbar-logo {
        height: 30px;
        max-width: 150px;
    }
    
    .navbar-logo:hover {
        transform: none; /* Deshabilitar hover en móviles */
    }
}

/* Enlaces de navegación - estilos base */
.nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
    color: #374151 !important; /* Color oscuro para modo claro */
    position: relative;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary) !important; /* Color primario en hover */
    transform: translateY(-1px);
}

/* Navbar collapse - estilos base para todos los modos */
.navbar-collapse {
    transition: all 0.3s ease;
}

/* Media query para móviles - mantener estructura original */
@media (max-width: 991.98px) {
    .navbar-nav {
        padding: 0.5rem 0;
    }
    
    .nav-link {
        padding: 0.75rem 1rem !important;
        border-radius: 0.375rem;
        margin: 0.125rem 0;
    }
    
    .navbar-collapse {
        border-radius: 0.5rem;
        margin-top: 0.5rem;
        padding: 1rem;
        border: 1px solid #E5E7EB;
        background-color: rgba(255, 255, 255, 0.98);
    }
}

/* Table of Contents (TOC) */
.toc-container {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border-radius: 0.75rem;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    max-width: 200px;
    max-height: 70vh;
    overflow-y: auto;
    border: 1px solid #E5E7EB;
}

/* Dark mode styles for TOC - DISABLED */
/*
[data-bs-theme="dark"] .toc-container {
    background: #1E293B;
    border-color: #374151;
    color: #E2E8F0;
}
*/

.toc-header {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.toc-link {
    display: block;
    padding: 0.5rem;
    color: var(--color-muted);
    text-decoration: none;
    font-size: 0.875rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.toc-link:hover {
    background-color: #F3F4F6;
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.toc-link.active {
    background-color: rgba(43, 76, 255, 0.1);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 600;
}

/* Dark mode TOC hover - DISABLED */
/*
[data-bs-theme="dark"] .toc-link:hover {
    background-color: #374151;
}
*/

/* Hero Section */
.hero-section {
    padding: 6rem 0 4rem;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(45deg, rgba(43, 76, 255, 0.03) 0%, rgba(255, 106, 0, 0.03) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-dark);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-muted);
    line-height: 1.7;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.hero-badges .badge {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 500;
}

/* Price Badge */
.price-badge {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.price-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, #1E40AF 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    position: relative;
    animation: pulse 2s infinite;
}

.price-circle::before {
    content: '';
    position: absolute;
    inset: -10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, #1E40AF 100%);
    opacity: 0.3;
    z-index: -1;
}

.price-text {
    text-align: center;
    color: white;
    font-weight: 700;
}

.price-from {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 1px;
    opacity: 0.9;
}

.price-amount {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.price-tax {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* CTA Buttons */
.hero-cta {
    margin-top: 2rem;
}

.hero-image {
    position: relative;
    z-index: 2;
}

.hero-image img {
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
}

/* Estilos específicos para la imagen dashboard hero (PNG con transparencia) */
.hero-dashboard-image {
    background: transparent !important;
    border-radius: 1rem;
    /* Sombra suave que se adapta mejor a imágenes transparentes */
    filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.1)) drop-shadow(0 4px 6px rgba(0, 0, 0, 0.05));
    /* Eliminamos box-shadow para evitar fondos blancos */
    box-shadow: none !important;
    /* Asegurar que no tenga fondo */
    backdrop-filter: none;
    /* Mejor calidad para imágenes PNG */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    /* Transición suave */
    transition: all 0.3s ease;
}

/* Hover effect para la imagen hero */
.hero-dashboard-image:hover {
    transform: scale(1.02);
    filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.15)) drop-shadow(0 6px 10px rgba(0, 0, 0, 0.08));
}

/* Contenedor de la imagen hero - asegurar transparencia */
.hero-image {
    background: transparent;
    padding: 0;
}

/* NOTA: Estos estilos son específicos para la imagen hero del dashboard.
   La imagen en la galería (sección capturas) mantiene sus estilos originales
   con las clases "rounded-3 shadow" para verse correctamente en esa sección. */

/* Responsive Hero */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .price-circle {
        width: 120px;
        height: 120px;
    }
    
    .price-amount {
        font-size: 2rem;
    }
    
    /* Ajustes responsivos para imagen hero dashboard */
    .hero-dashboard-image {
        filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.08)) drop-shadow(0 3px 5px rgba(0, 0, 0, 0.04));
    }
    
    .hero-dashboard-image:hover {
        transform: scale(1.01);
        filter: drop-shadow(0 12px 20px rgba(0, 0, 0, 0.12)) drop-shadow(0 5px 8px rgba(0, 0, 0, 0.06));
    }

    /* Ajustes responsivos para imagen de arquitectura */
    .tech-architecture-image {
        filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.06)) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.03));
    }
    
    .tech-architecture-image:hover {
        transform: scale(1.02);
        filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.1)) drop-shadow(0 4px 6px rgba(0, 0, 0, 0.05));
    }

    /* Ajustes responsivos para imagen de demo */
    .demo-zoom-image {
        filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.06)) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.03));
    }
    
    .demo-zoom-image:hover {
        transform: scale(1.02);
        filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.1)) drop-shadow(0 4px 6px rgba(0, 0, 0, 0.05));
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 4rem 0 3rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-badges .badge {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
    
    .price-circle {
        width: 100px;
        height: 100px;
    }
    
    .price-amount {
        font-size: 1.75rem;
    }
    
    /* Ajustes para imagen hero en móviles */
    .hero-dashboard-image {
        filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.06)) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.03));
        max-width: 100%;
        height: auto;
    }
    
    .hero-dashboard-image:hover {
        transform: none; /* Deshabilitar hover en móviles */
        filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.06)) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.03));
    }

    /* Ajustes para imagen de arquitectura en móviles */
    .tech-architecture-image {
        filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.04)) drop-shadow(0 1px 3px rgba(0, 0, 0, 0.02));
        max-width: 100%;
        height: auto;
    }
    
    .tech-architecture-image:hover {
        transform: none; /* Deshabilitar hover en móviles */
        filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.04)) drop-shadow(0 1px 3px rgba(0, 0, 0, 0.02));
    }

    /* Ajustes para imagen de demo en móviles */
    .demo-zoom-image {
        filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.04)) drop-shadow(0 1px 3px rgba(0, 0, 0, 0.02));
        max-width: 100%;
        height: auto;
    }
    
    .demo-zoom-image:hover {
        transform: none; /* Deshabilitar hover en móviles */
        filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.04)) drop-shadow(0 1px 3px rgba(0, 0, 0, 0.02));
    }
}

/* Feature Cards */
.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid #E5E7EB;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 1rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, #3B82F6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature-card h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--color-muted);
    margin-bottom: 0;
}

/* AdSense Slots */
.ad-slot {
    min-height: 100px;
    background-color: #F3F4F6;
    border: 2px dashed #D1D5DB;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin: 1rem 0;
}

.ad-slot::after {
    content: 'AdSense Space';
    color: var(--color-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

#ad-slot-hero {
    min-height: 90px;
}

#ad-slot-mid {
    min-height: 250px;
}

#ad-slot-footer {
    min-height: 120px;
}

/* Gallery */
.gallery-item {
    position: relative;
    cursor: pointer;
    overflow: hidden;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0;
    transition: all 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/* Technical Specifications */
.tech-specs {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid #E5E7EB;
}

.spec-item {
    margin-bottom: 2rem;
}

.spec-item h4 {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.code-example {
    background: #1E293B;
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid #374151;
}

.code-example h5 {
    color: white;
    margin-bottom: 1rem;
}

.code-example pre {
    background: transparent;
    border: none;
    margin: 0;
    padding: 0;
}

.code-example code {
    color: #E2E8F0;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Estilos específicos para la imagen de arquitectura técnica (PNG con transparencia) */
.tech-architecture-image {
    background: transparent !important;
    border-radius: 1rem;
    /* Sombra suave que se adapta mejor a imágenes transparentes */
    filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.08)) drop-shadow(0 3px 5px rgba(0, 0, 0, 0.04));
    /* Eliminamos box-shadow para evitar fondos blancos */
    box-shadow: none !important;
    /* Asegurar que no tenga fondo */
    backdrop-filter: none;
    /* Mejor calidad para imágenes PNG */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    /* Transición suave */
    transition: all 0.3s ease;
}

/* Hover effect para la imagen de arquitectura */
.tech-architecture-image:hover {
    transform: scale(1.03);
    filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.12)) drop-shadow(0 5px 8px rgba(0, 0, 0, 0.06));
}

/* Contenedor de la imagen técnica - asegurar transparencia */
.tech-image {
    background: transparent;
    padding: 0;
}

/* Estilos específicos para la imagen de demo por Zoom (PNG con transparencia) */
.demo-zoom-image {
    background: transparent !important;
    border-radius: 1rem;
    /* Sombra suave que se adapta mejor a imágenes transparentes */
    filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.08)) drop-shadow(0 3px 5px rgba(0, 0, 0, 0.04));
    /* Eliminamos box-shadow para evitar fondos blancos */
    box-shadow: none !important;
    /* Asegurar que no tenga fondo */
    backdrop-filter: none;
    /* Mejor calidad para imágenes PNG */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    /* Transición suave */
    transition: all 0.3s ease;
}

/* Hover effect para la imagen de demo */
.demo-zoom-image:hover {
    transform: scale(1.03);
    filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.12)) drop-shadow(0 5px 8px rgba(0, 0, 0, 0.06));
}

/* Contenedor de la imagen demo - asegurar transparencia */
.demo-image {
    background: transparent;
    padding: 0;
}

/* Module Cards */
.module-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid #E5E7EB;
    height: 100%;
}

.module-card h4 {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.module-card p {
    color: var(--color-muted);
    margin-bottom: 1rem;
}

/* Pricing Cards */
.pricing-card {
    background: white;
    border: 2px solid #E5E7EB;
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border-color: var(--color-primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-badge {
    position: absolute;
    top: -1px;
    right: 20px;
    background: var(--color-accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0 0 0.5rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-badge.bg-success {
    background: var(--color-success) !important;
}

.pricing-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
    border-bottom: 1px solid #E5E7EB;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.pricing-amount {
    margin-bottom: 0.5rem;
}

.pricing-amount .currency {
    font-size: 1rem;
    color: var(--color-muted);
    vertical-align: top;
}

.pricing-amount .price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
}

.pricing-amount .period {
    font-size: 1rem;
    color: var(--color-muted);
}

.pricing-note {
    color: var(--color-muted);
    font-size: 0.875rem;
    margin: 0;
}

.pricing-features {
    padding: 2rem;
    flex-grow: 1;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.pricing-cta {
    padding: 0 2rem 2rem;
    margin-top: auto;
}

/* Support Cards */
.support-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid #E5E7EB;
    transition: all 0.3s ease;
    height: 100%;
}

.support-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.support-icon {
    width: 80px;
    height: 80px;
    border-radius: 1rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, #F59E0B 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.support-icon i {
    font-size: 2rem;
    color: white;
}

.support-card h4 {
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.support-highlight {
    border: 2px solid var(--color-primary);
    position: relative;
}

.support-highlight::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
    border-radius: inherit;
    z-index: -1;
}

/* FAQ Accordion */
.accordion-item {
    border: 1px solid #E5E7EB;
    border-radius: 0.5rem !important;
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.accordion-button {
    font-weight: 500;
    color: var(--color-dark);
    padding: 1.25rem 1.5rem;
    background: white;
}

.accordion-button:not(.collapsed) {
    color: var(--color-primary);
    background: rgba(43, 76, 255, 0.05);
    border-color: var(--color-primary);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.125rem rgba(43, 76, 255, 0.25);
    border-color: var(--color-primary);
}

.accordion-body {
    padding: 1.25rem 1.5rem;
    color: var(--color-muted);
    background: white;
}

/* Blog Cards */
.blog-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid #E5E7EB;
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.blog-image {
    height: 200px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

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

.blog-content {
    padding: 1.5rem;
}

.blog-content h4 {
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.blog-content p {
    color: var(--color-muted);
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

/* Contact Form */
.contact-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.contact-form .form-control {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #E5E7EB;
    color: var(--color-dark);
}

.contact-form .form-control:focus {
    background: white;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.125rem rgba(43, 76, 255, 0.25);
}

.contact-info .contact-item {
    display: flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.9);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
}

.footer-brand h5 {
    color: white;
    font-weight: 600;
}

/* Logo del footer - responsive y optimizado */
.footer-logo {
    height: 50px;
    width: auto;
    max-width: 220px;
    /* Filtro para mejor visibilidad en fondo oscuro */
    filter: brightness(1.1) contrast(1.05);
    /* Mejor calidad para imágenes PNG */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transition: all 0.3s ease;
}

/* Hover effect para el logo del footer */
.footer-logo:hover {
    filter: brightness(1.3) contrast(1.2);
    transform: scale(1.05);
}

/* Responsive logo footer - ajustes para tablets */
@media (max-width: 992px) {
    .footer-logo {
        height: 45px;
        max-width: 200px;
    }
}

/* Responsive logo footer - ajustes para móviles */
@media (max-width: 576px) {
    .footer-logo {
        height: 40px;
        max-width: 180px;
    }
    
    .footer-logo:hover {
        transform: none; /* Deshabilitar hover en móviles */
    }
}

.footer a {
    transition: color 0.3s ease;
}

.footer a:hover {
    color: var(--color-primary) !important;
}

/* Unificar colores en el footer - mismo color que footer-contact */
.footer h6,
.footer p,
.footer li a,
.footer .social-links a {
    color: #9CA3AF !important; /* Mismo color que text-muted en el footer */
}

/* Excepción para WhatsApp - mantener color verde */
.footer .social-links a[title="WhatsApp"] {
    color: #25D366 !important;
}

/* Hover states unificados */
.footer li a:hover,
.footer .social-links a:hover {
    color: var(--color-primary) !important;
}

/* Excepción para WhatsApp hover */
.footer .social-links a[title="WhatsApp"]:hover {
    color: #1FA851 !important;
}

.social-links a {
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-2px);
}

/* Dark Mode Styles - ALL DISABLED */
/*
[data-bs-theme="dark"] .feature-card,
[data-bs-theme="dark"] .tech-specs,
[data-bs-theme="dark"] .module-card,
[data-bs-theme="dark"] .pricing-card,
[data-bs-theme="dark"] .support-card,
[data-bs-theme="dark"] .blog-card {
    background: #1E293B;
    border-color: #374151;
    color: #E2E8F0;
}

[data-bs-theme="dark"] .hero-section {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
}

[data-bs-theme="dark"] .hero-dashboard-image {
    filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.3)) drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
}

[data-bs-theme="dark"] .hero-dashboard-image:hover {
    filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.4)) drop-shadow(0 6px 10px rgba(0, 0, 0, 0.25));
}

[data-bs-theme="dark"] .tech-architecture-image {
    filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.25)) drop-shadow(0 3px 5px rgba(0, 0, 0, 0.15));
}

[data-bs-theme="dark"] .tech-architecture-image:hover {
    filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.35)) drop-shadow(0 5px 8px rgba(0, 0, 0, 0.2));
}

[data-bs-theme="dark"] .demo-zoom-image {
    filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.25)) drop-shadow(0 3px 5px rgba(0, 0, 0, 0.15));
}

[data-bs-theme="dark"] .demo-zoom-image:hover {
    filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.35)) drop-shadow(0 5px 8px rgba(0, 0, 0, 0.2));
}

[data-bs-theme="dark"] .navbar-logo {
    filter: brightness(1.2) contrast(1.1);
}

[data-bs-theme="dark"] .navbar-logo:hover {
    filter: brightness(1.3) contrast(1.2) scale(1.05);
}

[data-bs-theme="dark"] .nav-link {
    color: #E2E8F0 !important;
}

[data-bs-theme="dark"] .nav-link:hover,
[data-bs-theme="dark"] .nav-link:focus {
    color: #60A5FA !important;
}

[data-bs-theme="dark"] .navbar {
    background-color: rgba(15, 23, 42, 0.95) !important;
    border-bottom: 1px solid #374151;
}

[data-bs-theme="dark"] .navbar-toggler {
    border-color: #6B7280;
}

[data-bs-theme="dark"] .navbar-toggler-icon {
    filter: invert(1);
}

[data-bs-theme="dark"] #darkModeToggle {
    border-color: #6B7280 !important;
    color: #E2E8F0 !important;
}

[data-bs-theme="dark"] #darkModeToggle:hover {
    background-color: #374151 !important;
    border-color: #9CA3AF !important;
    color: #F3F4F6 !important;
}

[data-bs-theme="dark"] .navbar .btn-success {
    background-color: var(--color-whatsapp) !important;
    border-color: var(--color-whatsapp) !important;
}

[data-bs-theme="dark"] .navbar .btn-primary {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
}

[data-bs-theme="dark"] .navbar-collapse {
    background-color: rgba(15, 23, 42, 0.98);
    border-color: #374151;
}

@media (max-width: 991.98px) {
    [data-bs-theme="dark"] .nav-link:hover {
        background-color: rgba(96, 165, 250, 0.1) !important;
    }
}

[data-bs-theme="dark"] .section-title {
    color: #F8FAFC;
}

[data-bs-theme="dark"] .feature-card h4,
[data-bs-theme="dark"] .module-card h4,
[data-bs-theme="dark"] .support-card h4,
[data-bs-theme="dark"] .blog-content h4 {
    color: #F8FAFC;
}

[data-bs-theme="dark"] .accordion-button {
    background: #1E293B;
    color: #E2E8F0;
    border-color: #374151;
}

[data-bs-theme="dark"] .accordion-button:not(.collapsed) {
    background: rgba(43, 76, 255, 0.1);
}

[data-bs-theme="dark"] .accordion-body {
    background: #1E293B;
    color: #D1D5DB;
}
*/

/* Utility Classes */
.min-vh-75 {
    min-height: 75vh;
}

/* Theme transition styles - DISABLED */
/*
* {
    transition-property: color, background-color, border-color, box-shadow, filter;
    transition-duration: 0.3s;
    transition-timing-function: ease;
}

html[data-bs-theme="dark"],
html[data-bs-theme="light"] {
    transition: background-color 0.3s ease, color 0.3s ease;
}

.navbar,
.nav-link,
.navbar-collapse {
    will-change: color, background-color;
}
*/

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #F1F5F9;
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1E40AF;
}

/* Print styles */
@media print {
    .toc-container,
    .navbar,
    .ad-slot,
    .footer {
        display: none !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .feature-card,
    .pricing-card,
    .support-card {
        border-width: 2px;
    }
    
    .btn {
        border-width: 2px;
    }
}

/* ===============================================
   SPINNER ANIMATION
   =============================================== */
.spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Contact form loading state */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Form validation styles */
.form-control.is-valid {
    border-color: var(--color-success);
    box-shadow: 0 0 0 0.2rem rgba(16, 185, 129, 0.25);
}

.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}