/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores oficiales de Simbiosis */
    --primary-color: #D946A6;
    --primary-dark: #BE185D;
    --secondary-color: #4F46E5;
    --accent-color: #8B5CF6;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --background: #ffffff;
    --background-light: #f8fafc;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Transiciones */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

/* Utilidades */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-base);
    min-height: 44px;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

/* Navegación */
.navbar {
    position: absolute;
    top: 0;
    width: 100%;
    background-color: #ffffff !important;
    backdrop-filter: none;
    border-bottom: none;
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    background-color: #ffffff !important;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    height: 50px;
    width: auto;
    background: transparent;
    mix-blend-mode: multiply;
}

.logo-text {
    margin-left: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
    display: none; /* Ocultar texto ya que el logo PNG incluye el texto */
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    background-color: #ffffff !important;
}

.nav-link {
    text-decoration: none;
    color: #2d3748 !important;
    background-color: transparent !important;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--spacing-3xl);
    background: linear-gradient(135deg, rgba(217, 70, 166, 0.05) 0%, rgba(79, 70, 229, 0.05) 100%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
    text-align: justify;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
    text-align: justify;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.hero-image {
    position: relative;
}

.hero-img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-text h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    text-align: justify;
}

.about-image {
    position: relative;
}

.about-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

/* Services Section */
.services {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.service-card {
    background-color: var(--background);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

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

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon img {
    width: 30px;
    height: 30px;
    filter: brightness(0) invert(1);
}

.service-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: justify;
}

.use-cases {
    margin-top: var(--spacing-3xl);
}

.use-cases h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.case-item {
    background-color: var(--background);
    padding: var(--spacing-xl);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.case-item h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.case-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: justify;
}

/* Contact Section */
.contact {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.contact-info p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    text-align: justify;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
}

.contact-item strong {
    color: var(--text-primary);
    min-width: 80px;
}

.contact-item span {
    color: var(--text-secondary);
}

/* Formulario */
.contact-form {
    background-color: var(--background-light);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: var(--font-size-base);
    transition: var(--transition);
    font-family: var(--font-family);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-logo .logo {
    /* Sin filtro para mostrar el logo original */
}

.footer-logo .logo-text {
    color: white;
}

.footer-text {
    color: var(--text-light);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        padding: var(--spacing-lg) 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-buttons {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .cases-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .nav-container {
        padding: 0 var(--spacing-md);
    }

    .contact-form {
        padding: var(--spacing-lg);
    }
}

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

.hero-content,
.service-card,
.case-item {
    animation: fadeInUp 0.6s ease-out;
}

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

/* Estados de carga */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}


/* Estilos adicionales para funcionalidades JavaScript */

/* Estado activo del enlace de navegación */
.nav-link.active {
    color: var(--primary-color);
}

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

/* Animaciones adicionales */
@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* Estados de error en formularios */
.field-error {
    color: #ef4444;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    animation: fadeInUp 0.3s ease-out;
}

/* Mensaje de éxito */
.success-message {
    background-color: #10b981;
    color: white;
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    text-align: center;
    animation: fadeInUp 0.5s ease-out;
}

/* Estados de carga */
.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

/* Mejoras de accesibilidad */
.nav-link:focus,
.btn:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Indicador de scroll para navegación */
.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: width 0.3s ease;
    z-index: 1001;
}

/* Animación de entrada para elementos */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mejoras para dispositivos táctiles */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        transform: none;
    }
    
    .service-card:hover {
        transform: none;
    }
    
    .nav-link:hover::after {
        width: 0;
    }
}

/* Estados de carga de página */
body:not(.loaded) {
    overflow: hidden;
}

body.loaded {
    overflow: visible;
}

/* Optimizaciones de rendimiento */
.hero-img,
.about-img {
    will-change: transform;
}

/* Mejoras para modo oscuro (preparación futura) */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #0f172a;
        --background-light: #1e293b;
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-light: #94a3b8;
        --border-color: #334155;
    }
    
    .navbar {
        background-color: rgba(15, 23, 42, 0.95);
    }
    
    .nav-menu {
        background-color: var(--background);
    }
}

/* Animación de pulso para elementos importantes */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* Transiciones suaves para cambios de tema */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Mejoras de tipografía */
.hero-title,
.section-title {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Indicadores visuales mejorados */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}