/* ==========================================================================
   NovaTech Solutions - Main Stylesheet (Vanilla CSS)
   Built with modern styling and high-accessibility features.
   ========================================================================== */

/* --- SISTEMA DE DISEÑO: Variables Globales (Valores por defecto en Tema Oscuro) --- */
:root {
    /* Estructura Base (Tema Oscuro por defecto) */
    --color-bg: #0b0f19;
    --color-bg-card: #131b2e;
    --color-text: #f8fafc;
    --color-text-muted: #94a3b8;
    --color-border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(19, 27, 46, 0.7);
    --glass-border: rgba(255, 255, 255, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    
    /* Acentos de Color (Paleta Default por defecto) */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-glow: rgba(99, 102, 241, 0.15);
    --color-accent: #06b6d4;
    --color-accent-glow: rgba(6, 182, 212, 0.15);
    
    /* Utilidades estables */
    --color-error: #ef4444;
    --color-success: #10b981;
    
    /* Tipografía */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Plus Jakarta Sans', var(--font-sans);
    
    /* Tamaños de Fuente Base (Modificables por accesibilidad) */
    --font-size-base: 1rem;
    --font-size-h1: clamp(2.5rem, 5vw, 4rem);
    --font-size-h2: clamp(1.8rem, 4vw, 2.5rem);
    --font-size-h3: clamp(1.3rem, 3vw, 1.75rem);
    --font-size-lead: 1.15rem;
    --font-size-sm: 0.875rem;

    /* Efectos & Bordes */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- TEMAS ESTRUCTURALES --- */

/* Tema Claro (Light Mode) */
html.theme-light {
    --color-bg: #f1f5f9;
    --color-bg-card: #ffffff;
    --color-text: #0f172a;
    --color-text-muted: #475569;
    --color-border: rgba(15, 23, 42, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Tema Oscuro (Modo por defecto explícito) */
html.theme-dark {
    --color-bg: #0b0f19;
    --color-bg-card: #131b2e;
    --color-text: #f8fafc;
    --color-text-muted: #94a3b8;
    --color-border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(19, 27, 46, 0.7);
    --glass-border: rgba(255, 255, 255, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
}

/* --- PALETAS DE COLOR DE ACENTO --- */

/* Paleta 1: Default (Indigo & Cyan) */
html.palette-default {
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-glow: rgba(99, 102, 241, 0.15);
    --color-accent: #06b6d4;
    --color-accent-glow: rgba(6, 182, 212, 0.15);
}

/* Paleta 2: Cyberpunk (Amber & Rose) */
html.palette-cyberpunk {
    --color-primary: #f59e0b;
    --color-primary-hover: #d97706;
    --color-primary-glow: rgba(245, 158, 11, 0.15);
    --color-accent: #ec4899;
    --color-accent-glow: rgba(236, 72, 153, 0.15);
}

/* Paleta 3: Emerald (Green & Teal) */
html.palette-emerald {
    --color-primary: #10b981;
    --color-primary-hover: #059669;
    --color-primary-glow: rgba(16, 185, 129, 0.15);
    --color-accent: #14b8a6;
    --color-accent-glow: rgba(20, 184, 166, 0.15);
}

/* Paleta 4: Crimson (Rojo Tecnológico & Naranja) */
html.palette-crimson {
    --color-primary: #f43f5e;
    --color-primary-hover: #e11d48;
    --color-primary-glow: rgba(244, 63, 94, 0.15);
    --color-accent: #f97316;
    --color-accent-glow: rgba(249, 115, 22, 0.15);
}

/* --- ADAPTACIONES DE PALETA PARA TEMA CLARO (Mayor contraste para accesibilidad) --- */

html.theme-light.palette-default {
    --color-primary: #4f46e5;
    --color-primary-hover: #3730a3;
    --color-primary-glow: rgba(79, 70, 229, 0.1);
    --color-accent: #0891b2;
    --color-accent-glow: rgba(8, 145, 178, 0.1);
}

html.theme-light.palette-cyberpunk {
    --color-primary: #d97706;
    --color-primary-hover: #b45309;
    --color-primary-glow: rgba(217, 119, 6, 0.1);
    --color-accent: #db2777;
    --color-accent-glow: rgba(219, 39, 119, 0.1);
}

html.theme-light.palette-emerald {
    --color-primary: #059669;
    --color-primary-hover: #047857;
    --color-primary-glow: rgba(5, 150, 105, 0.1);
    --color-accent: #0d9488;
    --color-accent-glow: rgba(13, 148, 136, 0.1);
}

html.theme-light.palette-crimson {
    --color-primary: #be123c;
    --color-primary-hover: #9f1239;
    --color-primary-glow: rgba(190, 18, 60, 0.1);
    --color-accent: #ea580c;
    --color-accent-glow: rgba(234, 88, 12, 0.1);
}

/* --- DISEÑO ENMARCADO / BOXED LAYOUT --- */
html.layout-boxed {
    background-color: var(--color-boxed-outer, #05070a);
    transition: background-color var(--transition-normal);
}
html.theme-light.layout-boxed {
    --color-boxed-outer: #e2e8f0;
}
html.theme-dark.layout-boxed {
    --color-boxed-outer: #05070a;
}

body.layout-boxed {
    max-width: 1400px;
    margin: 0 auto;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.2);
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    position: relative;
    background-color: var(--color-bg);
}
body.layout-boxed .main-header {
    max-width: 1400px;
    left: 50%;
    transform: translateX(-50%);
}
body.layout-boxed .chat-widget {
    right: max(32px, calc((100vw - 1400px) / 2 + 32px));
}
body.layout-boxed .accessibility-panel {
    right: max(24px, calc((100vw - 1400px) / 2 + 24px));
}


/* --- OVERRIDES DE ACCESIBILIDAD --- */

/* Tamaños de texto */
html.font-sm {
    --font-size-base: 0.875rem;
    --font-size-h1: 2rem;
    --font-size-h2: 1.5rem;
    --font-size-h3: 1.2rem;
    --font-size-lead: 1rem;
}
html.font-lg {
    --font-size-base: 1.15rem;
    --font-size-h1: clamp(2.8rem, 6vw, 4.5rem);
    --font-size-h2: clamp(2.1rem, 5vw, 3rem);
    --font-size-h3: clamp(1.5rem, 3.5vw, 2.1rem);
    --font-size-lead: 1.35rem;
}

/* Alto Contraste (Modo Accesibilidad) */
html.high-contrast {
    --color-bg: #000000;
    --color-bg-card: #000000;
    --color-text: #ffffff;
    --color-text-muted: #ffff00;
    --color-primary: #ffff00;
    --color-primary-hover: #ffffff;
    --color-primary-glow: transparent;
    --color-accent: #00ffff;
    --color-border: #ffffff;
    --glass-bg: #000000;
    --glass-border: #ffffff;
    background-image: none !important;
}
html.high-contrast body,
html.high-contrast main,
html.high-contrast header,
html.high-contrast footer,
html.high-contrast section,
html.high-contrast .visual-card,
html.high-contrast .service-card,
html.high-contrast .estimator-controls,
html.high-contrast .estimator-result-card,
html.high-contrast .about-stack-visual,
html.high-contrast .contact-form,
html.high-contrast .contact-info-panel,
html.high-contrast .chat-window,
html.high-contrast .chat-msg,
html.high-contrast .accessibility-panel {
    background-color: #000000 !important;
    background-image: none !important;
    color: #ffffff !important;
    border-color: #ffffff !important;
}
html.high-contrast * {
    box-shadow: none !important;
    text-shadow: none !important;
    background-image: none !important;
}
html.high-contrast .service-card,
html.high-contrast .contact-form,
html.high-contrast .estimator-result-card,
html.high-contrast .estimator-controls,
html.high-contrast .chat-window,
html.high-contrast .accessibility-panel,
html.high-contrast .visual-card,
html.high-contrast .visual-stat-card,
html.high-contrast .visual-chart,
html.high-contrast .checkbox-label {
    border: 2px solid #ffffff !important;
}
html.high-contrast a,
html.high-contrast button,
html.high-contrast .btn {
    color: #ffff00 !important;
    background-color: #000000 !important;
    border: 2px solid #ffffff !important;
    text-decoration: underline !important;
}
html.high-contrast a:hover,
html.high-contrast button:hover,
html.high-contrast .btn:hover {
    color: #ffffff !important;
    background-color: #222222 !important;
    border-color: #ffffff !important;
}
html.high-contrast svg {
    color: #ffffff !important;
}
html.high-contrast .service-icon-wrapper {
    background-color: transparent !important;
    border: 1px solid #ffffff !important;
    color: #ffff00 !important;
}
html.high-contrast input,
html.high-contrast textarea {
    background-color: #000000 !important;
    color: #ffffff !important;
    border: 2px solid #ffffff !important;
}
html.high-contrast .custom-checkbox {
    border-color: #ffffff !important;
}
html.high-contrast input[type="checkbox"]:checked + .custom-checkbox {
    background-color: #ffff00 !important;
    border-color: #ffff00 !important;
}
html.high-contrast input[type="checkbox"]:checked + .custom-checkbox::after {
    color: #000000 !important;
}

/* Resaltar Enlaces */
html.highlight-links a:not(.logo):not(.skip-link), 
html.highlight-links button:not(.mobile-menu-toggle):not(.btn-palette) {
    outline: 3px dashed #ffff00 !important;
    outline-offset: 3px !important;
    background-color: rgba(255, 255, 0, 0.15) !important;
    color: #ffffff !important;
    font-weight: bold !important;
    text-decoration: underline !important;
}
html.theme-light.highlight-links a:not(.logo):not(.skip-link),
html.theme-light.highlight-links button:not(.mobile-menu-toggle):not(.btn-palette) {
    color: #0f172a !important;
    background-color: rgba(255, 255, 0, 0.35) !important;
}

/* Anular conflicto: Cuando Alto Contraste y Resaltar Enlaces están ambos activos */
html.high-contrast.highlight-links a:not(.logo):not(.skip-link),
html.high-contrast.highlight-links button:not(.mobile-menu-toggle):not(.btn-palette),
html.high-contrast.highlight-links .btn {
    background-color: #ffff00 !important;
    color: #000000 !important;
    outline: 3px solid #ffffff !important;
    outline-offset: 3px !important;
}

/* --- ESTILOS BASE & RESET --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: #ffffff;
    line-height: 1.25;
}

/* Enfoque accesible por defecto */
*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
}

/* Enlace de Salto (Skip Link) */
.skip-link {
    position: absolute;
    top: -100px;
    left: 20px;
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 10px 20px;
    z-index: 9999;
    border-radius: var(--radius-sm);
    transition: top var(--transition-fast);
    text-decoration: none;
    font-weight: 600;
}
.skip-link:focus {
    top: 20px;
}

/* Contenedores globales */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- BOTONES Y COMPONENTES COMUNES --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
}
.btn:hover {
    transform: translateY(-2px);
}
.btn:active {
    transform: translateY(0);
}
.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--color-primary-glow);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    box-shadow: 0 6px 20px var(--color-primary-glow);
}
.btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border: 1px solid var(--color-border);
}
.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}
.btn-block {
    display: width;
    width: 100%;
}

.text-green { color: var(--color-success); }
.text-cyan { color: var(--color-accent); }

/* --- HEADER / NAVEGACIÓN --- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: var(--glass-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    transition: background-color var(--transition-normal);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}
.logo-icon {
    font-size: 1.8rem;
}
.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    background: linear-gradient(135deg, #ffffff 50%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.main-nav {
    display: flex;
    align-items: center;
}
.nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 32px;
}
.nav-link {
    text-decoration: none;
    color: var(--color-text-muted);
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: 8px 0;
}
.nav-link:hover {
    color: #ffffff;
}
.nav-btn {
    background-color: var(--color-primary);
    color: #ffffff !important;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}
.nav-btn:hover {
    background-color: var(--color-primary-hover);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Botón de Accesibilidad */
.btn-accessibility-toggle {
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}
.btn-accessibility-toggle:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* Botón Menú Móvil */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
}
.mobile-menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition-fast);
}

/* --- PANEL DE ACCESIBILIDAD (DRAWER) --- */
.accessibility-panel {
    position: fixed;
    top: 90px;
    right: 24px;
    width: 280px;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    z-index: 99;
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    gap: 20px;
    animation: slideInDown var(--transition-fast) forwards;
}
.accessibility-panel.show {
    display: flex;
}
.accessibility-panel-title {
    font-size: 1.1rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 8px;
}
.accessibility-control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.control-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}
.btn-group {
    display: flex;
    gap: 8px;
}
.btn-acc {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-fast);
}
.btn-acc:hover, .btn-acc.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff;
}

/* Selector de Paletas de Color */
.palette-selectors {
    display: flex;
    gap: 8px;
    justify-content: space-between;
    padding: 4px 0;
}
.btn-palette {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
    box-shadow: var(--shadow-sm);
}
.btn-palette:hover {
    transform: scale(1.15);
}
.btn-palette.active {
    border-color: var(--color-text);
    transform: scale(1.1);
    box-shadow: 0 0 12px var(--color-primary-glow);
}
#palette-default-btn {
    background: linear-gradient(135deg, #6366f1 50%, #06b6d4 100%);
}
#palette-cyberpunk-btn {
    background: linear-gradient(135deg, #f59e0b 50%, #ec4899 100%);
}
#palette-emerald-btn {
    background: linear-gradient(135deg, #10b981 50%, #14b8a6 100%);
}
#palette-crimson-btn {
    background: linear-gradient(135deg, #f43f5e 50%, #f97316 100%);
}

/* Ajustes de legibilidad adicionales para modo claro */
html.theme-light .btn-secondary {
    color: var(--color-text);
}
html.theme-light .logo-text {
    background: linear-gradient(135deg, var(--color-text) 50%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
html.theme-light h1, html.theme-light h2, html.theme-light h3, html.theme-light h4 {
    color: var(--color-text);
}
html.theme-light .visual-header {
    background-color: rgba(0, 0, 0, 0.02);
}
html.theme-light .visual-stat-card {
    background-color: rgba(0, 0, 0, 0.01);
}
html.theme-light .visual-chart {
    background-color: rgba(0, 0, 0, 0.01);
}
html.theme-light .chat-msg.bot {
    background-color: rgba(0, 0, 0, 0.02);
}
html.theme-light .chat-input-area {
    background-color: rgba(0, 0, 0, 0.05);
}
html.theme-light .chat-input-area input {
    color: #0f172a !important;
    background-color: #ffffff !important;
    border: 1px solid rgba(15, 23, 42, 0.15) !important;
}
html.theme-light .chat-input-area input::placeholder {
    color: #94a3b8 !important;
}
html.theme-light .chat-close-btn:hover {
    color: var(--color-text);
}
html.theme-light .nav-link:hover {
    color: var(--color-primary) !important;
}
html.theme-light .nav-btn:hover {
    color: #ffffff !important;
    background-color: var(--color-primary-hover) !important;
}
html.theme-light .stat-num {
    background: linear-gradient(135deg, #0f172a 30%, var(--color-primary) 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
}


/* Corrección de Cotizador Paso 2 en Tema Claro */
html.theme-light .estimator-result-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%) !important;
    border: 1px solid rgba(15, 23, 42, 0.08) !important;
}
html.theme-light .estimator-result-card h3 {
    color: #0f172a !important;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08) !important;
}
html.theme-light .result-row span {
    color: #475569 !important;
}
html.theme-light .price-value {
    color: var(--color-primary) !important;
}
html.theme-light .stack-section span {
    color: #475569 !important;
}
html.theme-light .empty-stack-msg {
    color: #64748b !important;
}
/* Ajustes del Panel de Contacto en Tema Claro */
html.theme-light .contact-info-panel h3 {
    color: #0f172a !important;
}
html.theme-light .contact-lead {
    color: #475569 !important;
}
html.theme-light .contact-info-item a {
    color: #0f172a !important;
}
html.theme-light .contact-info-item a:hover {
    color: var(--color-primary) !important;
}
html.theme-light .contact-info-item strong {
    color: #475569 !important;
}

/* Ajustes específicos del Footer en Tema Claro */
html.theme-light .main-footer {
    background-color: #e2e8f0 !important;
    border-top: 1px solid #cbd5e1;
}
html.theme-light .footer-container {
    border-bottom: 1px solid #cbd5e1;
}
html.theme-light .footer-brand p,
html.theme-light .footer-links-group h3,
html.theme-light .footer-links-group a,
html.theme-light .footer-bottom-container,
html.theme-light .footer-bottom-links a {
    color: #475569 !important;
}
html.theme-light .footer-links-group a:hover,
html.theme-light .footer-bottom-links a:hover {
    color: #0f172a !important;
}
html.theme-light .footer-links-group li {
    color: #0f172a !important;
}
html.theme-light .footer-brand .logo-text {
    background: linear-gradient(135deg, #0f172a 50%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- WIDGET DEMO PERSONALIZADOR DE UI (FLOTANTE) --- */
.customizer-widget {
    position: fixed;
    bottom: 32px;
    left: 32px;
    z-index: 1000;
}
.customizer-toggle-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background-color: var(--color-primary);
    border: none;
    border-radius: 50px;
    color: #ffffff !important;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--color-primary-glow);
    transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}
.customizer-toggle-btn:hover {
    transform: scale(1.05);
    background-color: var(--color-primary-hover);
    box-shadow: 0 6px 24px var(--color-primary-glow);
}
.customizer-icon {
    font-size: 1.3rem;
    animation: spinIcon 8s linear infinite;
}
.customizer-toggle-btn:hover .customizer-icon {
    animation-duration: 3s;
}

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

/* --- HERO SECTION --- */
.hero-section {
    position: relative;
    padding-top: 180px;
    padding-bottom: 100px;
    overflow: hidden;
}
.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}
.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
}
.tech-badge {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}
.hero-section h1 {
    font-size: var(--font-size-h1);
    line-height: 1.15;
}
.hero-lead {
    font-size: var(--font-size-lead);
    color: var(--color-text-muted);
}
.hero-actions {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

/* Elemento Visual del Hero (Dashboard Interactivo CSS) */
.hero-visual {
    position: relative;
    z-index: 2;
}
.visual-card {
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(8px);
}
.main-dashboard {
    width: 100%;
    max-width: 450px;
    overflow: hidden;
}
.visual-header {
    background-color: rgba(255, 255, 255, 0.02);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--color-border);
}
.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.dot.red { background-color: #ef4444; }
.dot.yellow { background-color: #f59e0b; }
.dot.green { background-color: #10b981; }
.visual-title {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-family: monospace;
    margin-left: 8px;
}
.visual-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.visual-row {
    display: flex;
    gap: 16px;
}
.visual-stat-card {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    padding: 12px;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.stat-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
}
.stat-value {
    font-size: 0.95rem;
    font-weight: 700;
}
.visual-chart {
    height: 120px;
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    padding: 12px;
    gap: 8px;
}
.chart-bar {
    width: 12%;
    height: var(--height);
    background: linear-gradient(180deg, var(--color-accent), var(--color-primary));
    border-radius: 4px 4px 0 0;
    animation: growBar 1.5s ease forwards;
}

/* Brillos de fondo */
.hero-bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    z-index: 0;
    pointer-events: none;
}

/* --- STATS SECTION --- */
.stats-section {
    background-color: rgba(255, 255, 255, 0.01);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 40px 0;
}
.stats-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.stat-num {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: #ffffff;
    background: linear-gradient(135deg, #ffffff 30%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* --- SERVICES CATALOG --- */
.services-section {
    padding: 100px 0;
}
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.section-header h2 {
    font-size: var(--font-size-h2);
}
.section-subtitle {
    font-size: var(--font-size-lead);
    color: var(--color-text-muted);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.service-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: 16px;
    cursor: pointer;
}
.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px var(--color-primary-glow);
}
.service-icon-wrapper {
    width: 56px;
    height: 56px;
    background-color: var(--color-primary-glow);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}
.service-card:hover .service-icon-wrapper {
    background-color: var(--color-primary);
    color: #ffffff;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}
.service-icon {
    width: 28px;
    height: 28px;
}
.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
}
.service-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* --- COTIZADOR INTERACTIVO --- */
.estimator-section {
    padding: 100px 0;
    background-color: rgba(255, 255, 255, 0.01);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.estimator-wrapper {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: start;
    margin-top: 24px;
}
.estimator-controls {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 40px;
}
.estimator-controls h3, .estimator-result-card h3 {
    font-size: 1.3rem;
    margin-bottom: 24px;
    color: #ffffff;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 12px;
}
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    padding: 12px 16px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}
.checkbox-label:hover {
    background-color: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.15);
}
.checkbox-label input[type="checkbox"] {
    display: none;
}
.custom-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-text-muted);
    border-radius: 4px;
    display: inline-block;
    position: relative;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}
.checkbox-label input[type="checkbox"]:checked + .custom-checkbox {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
}
.checkbox-label input[type="checkbox"]:checked + .custom-checkbox::after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #ffffff;
    font-size: 12px;
    font-weight: bold;
}
.checkbox-text {
    font-weight: 500;
    font-size: 0.95rem;
}

/* Tarjeta de resultados */
.estimator-result-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.7) 0%, rgba(15, 23, 42, 0.8) 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}
.result-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
}
.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 12px;
}
.result-row span {
    color: var(--color-text-muted);
    font-weight: 500;
}
.price-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
}
.stack-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.stack-section span {
    color: var(--color-text-muted);
    font-weight: 500;
}
.stack-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 4px;
}
.stack-tag {
    background-color: rgba(6, 182, 212, 0.1);
    color: var(--color-accent);
    border: 1px solid rgba(6, 182, 212, 0.2);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: monospace;
}
.empty-stack-msg {
    color: var(--color-text-muted);
    font-style: italic;
    font-size: 0.9rem;
}

/* --- ABOUT SECTION --- */
.about-section {
    padding: 100px 0;
}
.about-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}
.about-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.about-content h2 {
    font-size: var(--font-size-h2);
}
.about-content p {
    color: var(--color-text-muted);
    font-size: var(--font-size-lead);
}
.features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.features-list li {
    position: relative;
    padding-left: 28px;
    font-size: 0.95rem;
}
.features-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
    font-size: 1.1rem;
}
.about-stack-visual {
    display: flex;
    justify-content: center;
}
.stack-badge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 380px;
}
.stack-badge {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 16px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}
.stack-badge:hover {
    color: #ffffff;
    border-color: var(--color-primary);
    background-color: var(--color-primary-glow);
    transform: scale(1.05);
}

/* --- CONTACT SECTION --- */
.contact-section {
    padding: 100px 0;
    background-color: rgba(255, 255, 255, 0.01);
    border-top: 1px solid var(--color-border);
}
.contact-wrapper {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    margin-top: 40px;
    align-items: start;
}
.contact-form {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.form-group label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}
.form-group input, .form-group textarea {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: #ffffff;
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}
.error-msg {
    color: var(--color-error);
    font-size: 0.8rem;
    font-weight: 500;
}

.contact-info-panel {
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.contact-info-panel h3 {
    font-size: 1.3rem;
}
.contact-lead {
    color: var(--color-text-muted);
}
.contact-info-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.info-icon {
    font-size: 1.5rem;
    line-height: 1;
}
.contact-info-item strong {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
}
.contact-info-item a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    transition: color var(--transition-fast);
}
.contact-info-item a:hover {
    color: var(--color-accent);
}

/* --- FOOTER --- */
.main-footer {
    border-top: 1px solid var(--color-border);
    padding: 80px 0 40px 0;
    background-color: #080c14;
}
.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--color-border);
}
.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.footer-brand p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    max-width: 320px;
}
.footer-links-group {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.footer-links-group h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
}
.footer-links-group ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-links-group a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}
.footer-links-group a:hover {
    color: #ffffff;
}
.footer-links-group li {
    font-size: 0.95rem;
    color: var(--color-text);
}

.footer-bottom {
    padding-top: 40px;
}
.footer-bottom-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
.footer-bottom-links {
    display: flex;
    gap: 24px;
}
.footer-bottom-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.footer-bottom-links a:hover {
    color: #ffffff;
}

/* --- CHAT DE IA SIMULADA --- */
.chat-widget {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 1000;
}
.chat-toggle-btn {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    border: none;
    border-radius: 50%;
    color: #ffffff;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
    position: relative;
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}
.chat-toggle-btn:hover {
    transform: scale(1.05);
    background-color: var(--color-primary-hover);
}
.chat-badge-dot {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 12px;
    height: 12px;
    background-color: var(--color-accent);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
}

.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 360px;
    height: 480px;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: slideInUp var(--transition-fast) forwards;
}
.chat-window.show {
    display: flex;
}
.chat-header {
    background-color: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--color-border);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.chat-agent-info {
    display: flex;
    align-items: center;
    gap: 12px;
}
.chat-avatar {
    font-size: 1.5rem;
}
.chat-agent-info h4 {
    font-size: 0.95rem;
    font-weight: 700;
}
.chat-status {
    font-size: 0.75rem;
    color: var(--color-success);
}
.chat-close-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}
.chat-close-btn:hover {
    color: #ffffff;
}

.chat-messages {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.chat-msg {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    line-height: 1.4;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.chat-msg.bot {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    align-self: flex-start;
}
.chat-msg.user {
    background-color: var(--color-primary);
    color: #ffffff;
    align-self: flex-end;
}
.chat-time {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    align-self: flex-end;
}
.chat-msg.user .chat-time {
    color: rgba(255, 255, 255, 0.7);
}

.chat-input-area {
    background-color: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--color-border);
    padding: 12px;
    display: flex;
    gap: 8px;
}
.chat-input-area input {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: #ffffff;
    padding: 8px 12px;
    font-size: 0.9rem;
}
.chat-input-area input:focus {
    border-color: var(--color-primary);
    outline: none;
}
.chat-send-btn {
    background-color: var(--color-primary);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-sm);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}
.chat-send-btn:hover {
    background-color: var(--color-primary-hover);
}

/* --- ANIMACIONES --- */
@keyframes growBar {
    from { height: 0; }
    to { height: var(--height); }
}
@keyframes slideInDown {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}
@keyframes slideInUp {
    from {
        transform: translateY(10px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* --- RESPONSIVIDAD (MEDIA QUERIES) --- */
@media (max-width: 1024px) {
    .hero-container, .estimator-wrapper, .about-container, .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-content {
        align-items: center;
        text-align: center;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-visual {
        display: flex;
        justify-content: center;
    }
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

@media (max-width: 768px) {
    /* Barra de Navegación Móvil */
    .mobile-menu-toggle {
        display: flex;
    }
    .main-nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--color-bg);
        z-index: 100;
        display: none;
        justify-content: center;
        align-items: flex-start;
        padding-top: 60px;
        border-top: 1px solid var(--color-border);
    }
    .main-nav.show {
        display: flex;
        animation: slideInDown var(--transition-fast) forwards;
    }
    .nav-list {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }
    .nav-link {
        font-size: 1.25rem;
    }

    /* Transformación del Icono Hamburger */
    .mobile-menu-toggle.active .bar-1 {
        transform: translateY(9px) rotate(45deg);
    }
    .mobile-menu-toggle.active .bar-2 {
        opacity: 0;
    }
    .mobile-menu-toggle.active .bar-3 {
        transform: translateY(-9px) rotate(-45deg);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
    .stats-container {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer-bottom-container {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    .chat-window {
        width: calc(100vw - 64px);
        right: 0;
    }
}