/* ==========================================================================
   PROYECTO: SITIO WEB INFORMATIVO - CARRO A CONTROL REMOTO
   ARCHIVO: css/estilos.css
   DESCRIPCIÓN: Hoja de estilos principal con diseño moderno, responsivo y
                paleta de colores tecnológicos.
   ========================================================================== */

/* ==========================================================================
   1. VARIABLES CSS (PALETA DE COLORES OBLIGATORIA Y CONFIGURACIONES)
   --------------------------------------------------------------------------
   MODIFICA AQUÍ LOS COLORES GLOBALES DEL SITIO WEB:
   - --azul-oscuro:   #0A192F (Barra lateral, menú, footer, fondos oscuros)
   - --azul-marino:   #1E3A8A (Encabezados secundarios, botones, tarjetas)
   - --azul-cielo:    #3B82F6 (Botones de acción, enlaces hover, interactivos)
   - --celeste:       #60A5FA (Detalles, bordes, indicadores, animaciones glow)
   - --blanco:        #FFFFFF (Fondo de tarjetas, textos en fondos oscuros)
   ========================================================================== */
:root {
    /* Paleta obligatoria */
    --azul-oscuro: #0A192F;
    --azul-marino: #1E3A8A;
    --azul-cielo: #3B82F6;
    --celeste: #60A5FA;
    --blanco: #FFFFFF;

    /* Tonos complementarios para profundidad UI/UX */
    --fondo-cuerpo: #071120;
    --fondo-tarjeta: #0D213F;
    --fondo-tarjeta-hover: #132D54;
    --fondo-modal: #0A192F;
    --texto-principal: #F8FAFC;
    --texto-secundario: #94A3B8;
    --texto-destacado: #60A5FA;
    --borde-suave: rgba(96, 165, 250, 0.25);
    --borde-hover: rgba(96, 165, 250, 0.7);
    --sombra-tarjeta: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    --sombra-neon: 0 0 20px rgba(59, 130, 246, 0.4);
    --sombra-celeste: 0 0 15px rgba(96, 165, 250, 0.5);

    /* Tipografías */
    --fuente-titulos: 'Outfit', 'Segoe UI', sans-serif;
    --fuente-texto: 'Inter', 'Segoe UI', -apple-system, sans-serif;
    --fuente-tech: 'Space Grotesk', monospace;

    /* Transiciones */
    --transicion-rapida: 0.2s ease;
    --transicion-suave: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --radio-borde: 14px;
    --radio-boton: 10px;
}

/* ==========================================================================
   2. RESET Y ESTILOS BASE
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--fuente-texto);
    background-color: var(--fondo-cuerpo);
    color: var(--texto-principal);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--azul-oscuro);
}

::-webkit-scrollbar-thumb {
    background: var(--azul-marino);
    border-radius: 5px;
    border: 2px solid var(--azul-oscuro);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--azul-cielo);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transicion-suave);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    transition: var(--transicion-suave);
}

/* Contenedor general */
.contenedor {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Títulos y encabezados de sección */
.encabezado-seccion {
    text-align: center;
    margin-bottom: 50px;
}

.subtitulo-tag {
    display: inline-block;
    font-family: var(--fuente-tech);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--celeste);
    background: rgba(96, 165, 250, 0.12);
    border: 1px solid var(--borde-suave);
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 14px;
}

.titulo-seccion {
    font-family: var(--fuente-titulos);
    font-size: 2.3rem;
    font-weight: 800;
    color: var(--blanco);
    letter-spacing: -0.5px;
    margin-bottom: 14px;
}

.titulo-seccion span {
    color: var(--celeste);
    text-shadow: 0 0 12px rgba(96, 165, 250, 0.3);
}

.descripcion-seccion {
    font-size: 1.05rem;
    color: var(--texto-secundario);
    max-width: 680px;
    margin: 0 auto;
}

/* Botones globales */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 13px 26px;
    border-radius: var(--radio-boton);
    cursor: pointer;
    transition: var(--transicion-suave);
    border: 1px solid transparent;
}

.btn-primario {
    background-color: var(--azul-cielo);
    color: var(--blanco);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.35);
}

.btn-primario:hover {
    background-color: var(--celeste);
    color: var(--azul-oscuro);
    box-shadow: var(--sombra-neon);
    transform: translateY(-2px);
}

.btn-secundario {
    background-color: transparent;
    color: var(--celeste);
    border: 1px solid var(--celeste);
}

.btn-secundario:hover {
    background-color: rgba(96, 165, 250, 0.15);
    color: var(--blanco);
    border-color: var(--blanco);
    transform: translateY(-2px);
}

/* ==========================================================================
   3. BARRA SUPERIOR (HEADER) Y BOTÓN HAMBURGUESA
   ========================================================================== */
.barra-navegacion {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--borde-suave);
    z-index: 1000;
    padding: 14px 0;
}

.nav-contenedor {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-izquierda {
    display: flex;
    align-items: center;
    gap: 18px;
}

/* Botón Hamburguesa ☰ */
.btn-hamburguesa {
    background: rgba(30, 58, 138, 0.4);
    border: 1px solid var(--borde-suave);
    color: var(--celeste);
    font-size: 1.4rem;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transicion-suave);
}

.btn-hamburguesa:hover {
    background-color: var(--azul-cielo);
    color: var(--blanco);
    border-color: var(--celeste);
    box-shadow: var(--sombra-celeste);
    transform: scale(1.05);
}

.logo-sitio {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--fuente-titulos);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blanco);
    
}
.logo-real{
    height: 38px;
    width: 42px;
    border-radius: 50px;
}
.logo-sitio i {
    color: var(--celeste);
    font-size: 1.3rem;
}

.logo-sitio span {
    color: var(--celeste);
}

/* Enlaces rápidos en escritorio */
.nav-enlaces-desktop {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
}

.nav-enlaces-desktop a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--texto-secundario);
    padding: 8px 12px;
    border-radius: 8px;
}

.nav-enlaces-desktop a:hover,
.nav-enlaces-desktop a.activo {
    color: var(--blanco);
    background: rgba(59, 130, 246, 0.15);
}

.nav-enlaces-desktop a.activo {
    color: var(--celeste);
    border-bottom: 2px solid var(--celeste);
}

/* ==========================================================================
   4. MENÚ LATERAL DESPLEGABLE (SIDEBAR HAMBURGUESA)
   ========================================================================== */
.overlay-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(7, 17, 32, 0.75);
    backdrop-filter: blur(4px);
    z-index: 1998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.overlay-sidebar.activo {
    opacity: 1;
    visibility: visible;
}

.sidebar-menu {
    position: fixed;
    top: 0;
    left: -320px;
    width: 300px;
    height: 100vh;
    background-color: var(--azul-oscuro);
    border-right: 1px solid var(--borde-suave);
    z-index: 1999;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.sidebar-menu.activo {
    left: 0;
}

.sidebar-cabecera {
    padding: 24px 20px;
    border-bottom: 1px solid var(--borde-suave);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(30, 58, 138, 0.2);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--fuente-titulos);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--blanco);
}

.sidebar-logo i {
    color: var(--celeste);
}

.btn-cerrar-sidebar {
    background: transparent;
    border: none;
    color: var(--texto-secundario);
    font-size: 1.4rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transicion-rapida);
}

.btn-cerrar-sidebar:hover {
    color: var(--blanco);
    background-color: rgba(96, 165, 250, 0.2);
}

.sidebar-lista-links {
    list-style: none;
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-lista-links li a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 18px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--texto-secundario);
    border-radius: 10px;
    border-left: 3px solid transparent;
    transition: var(--transicion-suave);
}

.sidebar-lista-links li a i {
    font-size: 1.15rem;
    color: var(--celeste);
    width: 22px;
    text-align: center;
}

.sidebar-lista-links li a:hover,
.sidebar-lista-links li a.activo {
    color: var(--blanco);
    background: rgba(30, 58, 138, 0.45);
    border-left-color: var(--celeste);
    transform: translateX(4px);
}

.sidebar-pie {
    margin-top: auto;
    padding: 20px;
    border-top: 1px solid var(--borde-suave);
    font-size: 0.85rem;
    color: var(--texto-secundario);
    text-align: center;
}

/* ==========================================================================
   5. SECCIÓN: INICIO (HERO)
   ========================================================================== */
.seccion-hero {
    position: relative;
    padding: 70px 0 90px;
    overflow: hidden;
    background: radial-gradient(circle at 80% 20%, rgba(30, 58, 138, 0.25) 0%, transparent 60%),
                radial-gradient(circle at 10% 80%, rgba(10, 25, 47, 0.6) 0%, transparent 50%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: 50px;
}

.hero-contenido {
    animation: fadeInIzquierda 0.9s ease forwards;
}

.hero-titulo {
    font-family: var(--fuente-titulos);
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--blanco);
    margin-bottom: 18px;
    letter-spacing: -1px;
}

.hero-titulo span {
    background: linear-gradient(135deg, var(--blanco) 20%, var(--celeste) 80%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-frase {
    font-family: var(--fuente-tech);
    font-size: 1.15rem;
    color: var(--celeste);
    margin-bottom: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-descripcion {
    font-size: 1.1rem;
    color: var(--texto-secundario);
    margin-bottom: 32px;
    max-width: 540px;
    line-height: 1.7;
}

.hero-botones {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 40px;
}

/* Indicadores / Stats del Hero */
.hero-stats {
    display: flex;
    gap: 30px;
    border-top: 1px solid var(--borde-suave);
    padding-top: 24px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-numero {
    font-family: var(--fuente-titulos);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--celeste);
}

.stat-etiqueta {
    font-size: 0.82rem;
    color: var(--texto-secundario);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Contenedor de la Imagen del Robot Hero */
.hero-imagen-wrapper {
    position: relative;
    animation: fadeInDerecha 0.9s ease forwards;
    display: flex;
    justify-content: center;
}

.hero-marco-robot {
    position: relative;
    width: 100%;
    max-width: 480px;
    border-radius: 20px;
    padding: 12px;
    background: linear-gradient(145deg, rgba(30, 58, 138, 0.4), rgba(10, 25, 47, 0.8));
    border: 1px solid var(--borde-hover);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), var(--sombra-neon);
    transition: var(--transicion-suave);
}

.hero-marco-robot:hover {
    transform: translateY(-6px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7), 0 0 35px rgba(96, 165, 250, 0.5);
    border-color: var(--celeste);
}

.hero-robot-img {
    width: 100%;
    height: 340px;
    object-fit: cover;
    border-radius: 14px;
    background-color: var(--azul-oscuro);
}

/* Badges flotantes sobre la imagen */
.hero-badge-flotante {
    position: absolute;
    bottom: -15px;
    right: 20px;
    background: var(--azul-oscuro);
    border: 1px solid var(--celeste);
    color: var(--blanco);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--sombra-celeste);
    animation: flotarSuave 4s ease-in-out infinite;
}

.hero-badge-flotante i {
    color: #10B981;
}

/* ==========================================================================
   6. SECCIÓN: CATÁLOGO Y GALERÍA (12 COMPONENTES)
   ========================================================================== */
.seccion-catalogo {
    padding: 90px 0;
    background-color: rgba(10, 25, 47, 0.4);
    border-top: 1px solid var(--borde-suave);
    border-bottom: 1px solid var(--borde-suave);
}

/* Barra de Filtros y Buscador */
.catalogo-filtros-contenedor {
    background: var(--azul-oscuro);
    border: 1px solid var(--borde-suave);
    border-radius: var(--radio-borde);
    padding: 24px;
    margin-bottom: 40px;
    box-shadow: var(--sombra-tarjeta);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.catalogo-buscador-caja {
    position: relative;
    width: 100%;
}

.catalogo-buscador-caja i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--celeste);
    font-size: 1.1rem;
}

.buscador-input {
    width: 100%;
    padding: 14px 20px 14px 48px;
    background-color: rgba(7, 17, 32, 0.8);
    border: 1px solid var(--borde-suave);
    border-radius: 10px;
    color: var(--blanco);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transicion-suave);
}

.buscador-input:focus {
    outline: none;
    border-color: var(--celeste);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.25);
    background-color: rgba(7, 17, 32, 1);
}

.buscador-input::placeholder {
    color: var(--texto-secundario);
}

/* Botones de Categorías */
.categorias-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.btn-filtro {
    background: rgba(30, 58, 138, 0.3);
    color: var(--texto-secundario);
    border: 1px solid var(--borde-suave);
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transicion-suave);
}

.btn-filtro:hover {
    color: var(--blanco);
    border-color: var(--celeste);
    background: rgba(59, 130, 246, 0.2);
}

.btn-filtro.activo {
    background: var(--azul-cielo);
    color: var(--blanco);
    border-color: var(--celeste);
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.4);
}

/* Contador de resultados */
.resultados-contador {
    font-size: 0.9rem;
    color: var(--texto-secundario);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.resultados-contador span {
    color: var(--celeste);
    font-weight: 600;
}

/* Grid de Tarjetas del Catálogo */
.catalogo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* Tarjeta de Componente */
.tarjeta-componente {
    background: var(--fondo-tarjeta);
    border: 1px solid var(--borde-suave);
    border-radius: var(--radio-borde);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transicion-suave);
    box-shadow: var(--sombra-tarjeta);
    position: relative;
}

.tarjeta-componente:hover {
    transform: translateY(-6px);
    border-color: var(--borde-hover);
    background: var(--fondo-tarjeta-hover);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(59, 130, 246, 0.3);
}

/* Imagen del Componente */
.tarjeta-img-contenedor {
    position: relative;
    width: 100%;
    height: 190px;
    background-color: var(--azul-oscuro);
    overflow: hidden;
    border-bottom: 1px solid var(--borde-suave);
}

.tarjeta-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tarjeta-componente:hover .tarjeta-img {
    transform: scale(1.06);
}

.tarjeta-badge-cat {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(4px);
    border: 1px solid var(--borde-suave);
    color: var(--celeste);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Cuerpo de la Tarjeta */
.tarjeta-cuerpo {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.tarjeta-nombre {
    font-family: var(--fuente-titulos);
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--blanco);
    margin-bottom: 8px;
    line-height: 1.35;
    min-height: 46px;
}

.tarjeta-descripcion {
    font-size: 0.88rem;
    color: var(--texto-secundario);
    margin-bottom: 16px;
    line-height: 1.5;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tarjeta-precio-fila {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-top: 12px;
    border-top: 1px dashed var(--borde-suave);
}

.tarjeta-precio-etiqueta {
    font-size: 0.8rem;
    color: var(--texto-secundario);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tarjeta-precio-valor {
    font-family: var(--fuente-tech);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--celeste);
}

.btn-ficha {
    width: 100%;
    background-color: var(--azul-marino);
    color: var(--blanco);
    border: 1px solid var(--borde-suave);
    padding: 11px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-ficha:hover {
    background-color: var(--azul-cielo);
    color: var(--blanco);
    border-color: var(--celeste);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

/* Estado sin resultados */
.sin-resultados {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--azul-oscuro);
    border: 1px dashed var(--borde-suave);
    border-radius: var(--radio-borde);
}

.sin-resultados i {
    font-size: 3rem;
    color: var(--celeste);
    margin-bottom: 16px;
}

.sin-resultados h3 {
    font-size: 1.4rem;
    color: var(--blanco);
    margin-bottom: 8px;
}

.sin-resultados p {
    color: var(--texto-secundario);
}

/* ==========================================================================
   7. VENTANA EMERGENTE: MODAL DE FICHA TÉCNICA
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(7, 17, 32, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.activo {
    opacity: 1;
    visibility: visible;
}

.modal-contenedor {
    background-color: var(--azul-oscuro);
    border: 1px solid var(--borde-hover);
    border-radius: 20px;
    max-width: 850px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), var(--sombra-neon);
    transform: scale(0.92) translateY(20px);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.activo .modal-contenedor {
    transform: scale(1) translateY(0);
}

.btn-cerrar-modal {
    position: absolute;
    top: 18px;
    right: 18px;
    background: rgba(30, 58, 138, 0.6);
    border: 1px solid var(--borde-suave);
    color: var(--blanco);
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: var(--transicion-rapida);
}

.btn-cerrar-modal:hover {
    background-color: #EF4444;
    border-color: #F87171;
    transform: rotate(90deg);
}

.modal-cuerpo {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 30px;
    padding: 36px 30px;
}

/* Columna Izquierda del Modal */
.modal-col-imagen {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-img-wrapper {
    width: 100%;
    height: 280px;
    background-color: var(--fondo-cuerpo);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--borde-suave);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-precio-caja {
    background: rgba(30, 58, 138, 0.3);
    border: 1px solid var(--borde-suave);
    border-radius: 12px;
    padding: 14px;
    text-align: center;
}

.modal-precio-caja .label {
    font-size: 0.8rem;
    color: var(--texto-secundario);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-precio-caja .precio {
    font-family: var(--fuente-tech);
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--celeste);
}

/* Columna Derecha del Modal */
.modal-col-info {
    display: flex;
    flex-direction: column;
}

.modal-categoria-tag {
    font-family: var(--fuente-tech);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--celeste);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 6px;
}

.modal-titulo {
    font-family: var(--fuente-titulos);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--blanco);
    margin-bottom: 12px;
    line-height: 1.25;
}

.modal-descripcion {
    font-size: 0.95rem;
    color: var(--texto-secundario);
    margin-bottom: 22px;
    line-height: 1.6;
}

.modal-subseccion-titulo {
    font-family: var(--fuente-titulos);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--blanco);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--borde-suave);
    padding-bottom: 6px;
}

.modal-subseccion-titulo i {
    color: var(--celeste);
}

/* Tabla / Grid de especificaciones de la ficha */
.modal-specs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.modal-spec-item {
    background: rgba(7, 17, 32, 0.6);
    border: 1px solid var(--borde-suave);
    border-radius: 10px;
    padding: 10px 14px;
}

.modal-spec-item.full-width {
    grid-column: 1 / -1;
}

.modal-spec-label {
    font-size: 0.75rem;
    color: var(--texto-secundario);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.modal-spec-valor {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--texto-principal);
}

.modal-funcion-caja {
    background: rgba(30, 58, 138, 0.25);
    border-left: 3px solid var(--celeste);
    border-radius: 0 8px 8px 0;
    padding: 12px 16px;
    margin-top: 4px;
}

.modal-funcion-caja p {
    font-size: 0.9rem;
    color: var(--texto-principal);
    line-height: 1.5;
}

/* ==========================================================================
   8. SECCIÓN: DIAGRAMA DE CONEXIONES ("¿CÓMO FUNCIONA EL CARRITO?")
   ========================================================================== */
.seccion-diagrama {
    padding: 90px 0;
    position: relative;
    background: radial-gradient(circle at 50% 50%, rgba(30, 58, 138, 0.18) 0%, transparent 70%);
}

.diagrama-contenedor-visual {
    background: var(--azul-oscuro);
    border: 1px solid var(--borde-hover);
    border-radius: 20px;
    padding: 24px;
    box-shadow: var(--sombra-tarjeta), var(--sombra-neon);
    margin-bottom: 50px;
    position: relative;
}

.diagrama-visor-marco {
    position: relative;
    width: 100%;
    min-height: 380px;
    max-height: 520px;
    background-color: var(--fondo-cuerpo);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--borde-suave);
    cursor: zoom-in;
}

.diagrama-img {
    width: 100%;
    height: 100%;
    max-height: 500px;
    object-fit: contain;
    transition: transform 0.4s ease;
}

.diagrama-visor-marco:hover .diagrama-img {
    transform: scale(1.02);
}

.diagrama-hover-overlay {
    position: absolute;
    bottom: 16px;
    right: 16px;
    background: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(6px);
    border: 1px solid var(--celeste);
    color: var(--blanco);
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--sombra-celeste);
    pointer-events: none;
}

/* Tarjetas explicativas de interconexión */
.explicacion-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.explicacion-tarjeta {
    background: var(--fondo-tarjeta);
    border: 1px solid var(--borde-suave);
    border-radius: var(--radio-borde);
    padding: 24px;
    transition: var(--transicion-suave);
    position: relative;
}

.explicacion-tarjeta:hover {
    transform: translateY(-5px);
    border-color: var(--celeste);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 15px rgba(96, 165, 250, 0.25);
    background: var(--fondo-tarjeta-hover);
}

.explicacion-icono {
    width: 52px;
    height: 52px;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid var(--borde-suave);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--celeste);
    font-size: 1.4rem;
    margin-bottom: 18px;
}

.explicacion-titulo {
    font-family: var(--fuente-titulos);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--blanco);
    margin-bottom: 10px;
}

.explicacion-texto {
    font-size: 0.9rem;
    color: var(--texto-secundario);
    line-height: 1.6;
}

/* ==========================================================================
   9. SECCIÓN: PRODUCTO FINAL ("EL RESULTADO")
   ========================================================================== */
.seccion-resultado {
    padding: 90px 0;
    background-color: rgba(10, 25, 47, 0.6);
    border-top: 1px solid var(--borde-suave);
    border-bottom: 1px solid var(--borde-suave);
}

.resultado-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
}

.resultado-marco-foto {
    position: relative;
    border-radius: 24px;
    padding: 14px;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.5), rgba(10, 25, 47, 0.9));
    border: 2px solid var(--borde-hover);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7), var(--sombra-neon);
}

.resultado-img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    border-radius: 16px;
}

.resultado-badge-estado {
    position: absolute;
    top: 28px;
    left: 28px;
    background: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(6px);
    border: 1px solid #10B981;
    color: #10B981;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: 1px;
}

.resultado-contenido {
    display: flex;
    flex-direction: column;
}

.resultado-titulo {
    font-family: var(--fuente-titulos);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--blanco);
    margin-bottom: 16px;
    line-height: 1.2;
}

.resultado-titulo span {
    color: var(--celeste);
}

.resultado-descripcion {
    font-size: 1.05rem;
    color: var(--texto-secundario);
    margin-bottom: 28px;
    line-height: 1.7;
}

/* Lista de ventajas / características clave */
.resultado-caracteristicas-lista {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 34px;
}

.resultado-item-caracteristica {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: rgba(7, 17, 32, 0.5);
    border: 1px solid var(--borde-suave);
    border-radius: 12px;
    padding: 14px 18px;
}

.resultado-item-caracteristica i {
    color: var(--celeste);
    font-size: 1.2rem;
    margin-top: 2px;
}

.resultado-item-texto strong {
    display: block;
    color: var(--blanco);
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.resultado-item-texto p {
    font-size: 0.85rem;
    color: var(--texto-secundario);
    line-height: 1.4;
}

/* ==========================================================================
   10. SECCIÓN: CONTACTO
   ========================================================================== */
.seccion-contacto {
    padding: 90px 0;
}

.contacto-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 50px;
}

/* Tarjeta de Información de Empresa / Proyecto */
.contacto-info-tarjeta {
    background: var(--azul-oscuro);
    border: 1px solid var(--borde-suave);
    border-radius: 20px;
    padding: 36px 30px;
    box-shadow: var(--sombra-tarjeta);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contacto-empresa-nombre {
    font-family: var(--fuente-titulos);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--blanco);
    margin-bottom: 12px;
}

.contacto-empresa-desc {
    font-size: 0.95rem;
    color: var(--texto-secundario);
    margin-bottom: 28px;
    line-height: 1.6;
}

.contacto-detalles-lista {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 32px;
}

.contacto-detalle-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contacto-icono-circulo {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(30, 58, 138, 0.4);
    border: 1px solid var(--borde-suave);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--celeste);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contacto-detalle-textos .label {
    font-size: 0.78rem;
    color: var(--texto-secundario);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contacto-detalle-textos .valor {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--blanco);
}

/* Redes Sociales */
.contacto-redes-titulo {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--celeste);
    margin-bottom: 14px;
    font-weight: 600;
}

.redes-sociales-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn-red-social {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border-radius: 10px;
    background: rgba(7, 17, 32, 0.7);
    border: 1px solid var(--borde-suave);
    color: var(--blanco);
    font-size: 0.88rem;
    font-weight: 500;
    transition: var(--transicion-suave);
}

.btn-red-social i {
    font-size: 1.1rem;
}

/* Colores hover para cada red */
.btn-red-social.instagram:hover {
    background: linear-gradient(45deg, #F58529, #DD2A7B, #8134AF);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(221, 42, 123, 0.4);
}

.btn-red-social.facebook:hover {
    background: #1877F2;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(24, 119, 242, 0.4);
}

.btn-red-social.tiktok:hover {
    background: #000000;
    border-color: #25F4EE;
    box-shadow: 0 4px 15px rgba(37, 244, 238, 0.4);
}

.btn-red-social.youtube:hover {
    background: #FF0000;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(255, 0, 0, 0.4);
}

.btn-red-social.whatsapp:hover {
    background: #25D366;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}

/* Formulario de Contacto */
.contacto-formulario-caja {
    background: var(--azul-oscuro);
    border: 1px solid var(--borde-suave);
    border-radius: 20px;
    padding: 36px 30px;
    box-shadow: var(--sombra-tarjeta);
}

.contacto-formulario-titulo {
    font-family: var(--fuente-titulos);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--blanco);
    margin-bottom: 20px;
}

.form-grupo {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--texto-secundario);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 13px 16px;
    background: rgba(7, 17, 32, 0.8);
    border: 1px solid var(--borde-suave);
    border-radius: 10px;
    color: var(--blanco);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transicion-suave);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--celeste);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
    background: rgba(7, 17, 32, 1);
}

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

/* ==========================================================================
   11. PIE DE PÁGINA (FOOTER)
   ========================================================================== */
.footer-sitio {
    background-color: var(--azul-oscuro);
    border-top: 1px solid var(--borde-suave);
    padding: 60px 0 30px;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col-marca .logo-sitio {
    margin-bottom: 14px;
}

.footer-motto {
    font-size: 0.92rem;
    color: var(--texto-secundario);
    line-height: 1.6;
    max-width: 320px;
}

.footer-col-titulo {
    font-family: var(--fuente-titulos);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--blanco);
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 8px;
}

.footer-col-titulo::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 32px;
    height: 2px;
    background-color: var(--celeste);
}

.footer-links-lista {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links-lista a {
    font-size: 0.9rem;
    color: var(--texto-secundario);
}

.footer-links-lista a:hover {
    color: var(--celeste);
    padding-left: 5px;
}

.footer-barra-inferior {
    border-top: 1px solid rgba(96, 165, 250, 0.15);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--texto-secundario);
}

.footer-barra-inferior span {
    color: var(--celeste);
}

/* ==========================================================================
   12. VISOR MODAL DE DIAGRAMA (ZOOM LIGHTBOX)
   ========================================================================== */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(7, 17, 32, 0.95);
    backdrop-filter: blur(10px);
    z-index: 2200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox-overlay.activo {
    opacity: 1;
    visibility: visible;
}

.lightbox-contenedor {
    position: relative;
    max-width: 95vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.9), var(--sombra-neon);
    border: 1px solid var(--borde-hover);
}

.lightbox-pie {
    margin-top: 16px;
    color: var(--blanco);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
}

/* Toast de notificación */
.toast-notificacion {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--azul-oscuro);
    border: 1px solid var(--celeste);
    color: var(--blanco);
    padding: 14px 22px;
    border-radius: 12px;
    box-shadow: var(--sombra-neon);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 3000;
    transform: translateY(100px);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
}

.toast-notificacion.activo {
    transform: translateY(0);
    opacity: 1;
}

.toast-notificacion i {
    color: #10B981;
    font-size: 1.3rem;
}

/* ==========================================================================
   13. ANIMACIONES KEYFRAMES
   ========================================================================== */
@keyframes fadeInIzquierda {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInDerecha {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes flotarSuave {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* ==========================================================================
   14. DISEÑO RESPONSIVE (MEDIA QUERIES)
   ========================================================================== */
/* Pantallas medianas y tablets (hasta 1024px) */
@media (max-width: 1024px) {
    .catalogo-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero-titulo {
        font-size: 2.6rem;
    }

    .hero-grid {
        gap: 36px;
    }

    .explicacion-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablets (hasta 768px) */
@media (max-width: 768px) {
    .nav-enlaces-desktop {
        display: none;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-descripcion {
        margin: 0 auto 30px;
    }

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

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

    .hero-imagen-wrapper {
        margin-top: 20px;
    }

    .catalogo-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-cuerpo {
        grid-template-columns: 1fr;
        padding: 24px 20px;
    }

    .modal-img-wrapper {
        height: 220px;
    }

    .resultado-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contacto-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-barra-inferior {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

/* Móviles pequeños (hasta 540px) */
@media (max-width: 540px) {
    .contenedor {
        padding: 0 16px;
    }

    .titulo-seccion {
        font-size: 1.8rem;
    }

    .hero-titulo {
        font-size: 2.1rem;
    }

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

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

    .modal-specs-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .btn {
        width: 100%;
    }
}