/* ==========================================================================
           1. SISTEMA DE DISEÑO (TEDDY BEAR / TONOS CÁLIDOS)
           ========================================================================== */
        :root {
            --color-fondo: #FAF6F0; /* Beige cálido de ArteEnLink */
            --color-seccion-clara: #F0EBE1; 
            --color-texto-principal: #0A192F; 
            --color-texto-secundario: #4A5568; 
            
            /* Acentos exclusivos para Baby Shower: Café con leche / Neutros */
            --color-acento-teddy: #D4A373; /* Tono Teddy Bear principal */
            --color-teddy-hover: #B58453;
            --color-acento-secundario: #E9D8A6; /* Amarillo mostaza suave */
            --color-teddy-claro: #FEFAE0; /* Crema muy claro */

            --fuente-titulos: 'Playfair Display', serif;
            --fuente-textos: 'Poppins', sans-serif;

            --sombra-suave: 0 10px 30px rgba(10, 25, 47, 0.05);
            --sombra-fuerte: 0 20px 40px rgba(212, 163, 115, 0.25);
            --borde-radio: 16px;
        }

        /* ==========================================================================
           2. RESET Y ESTILOS GLOBALES
           ========================================================================== */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        
        body { 
            font-family: var(--fuente-textos); 
            background-color: var(--color-fondo); 
            color: var(--color-texto-principal); 
            line-height: 1.6; 
            overflow-x: hidden; 
            /* REGLA: Fuentes Nítidas */
            -webkit-font-smoothing: antialiased; 
            -moz-osx-font-smoothing: grayscale; 
        }
        
        h1, h2, h3, h4 { font-family: var(--fuente-titulos); color: var(--color-texto-principal); }
        p { color: var(--color-texto-secundario); font-size: 1rem; }
        a { text-decoration: none; color: inherit; }
        .contenedor { max-width: 1200px; margin: 0 auto; padding: 0 5%; }
        .seccion-padding { padding: 80px 0; }

        /* --- PRELOADER Y ANIMACIONES LIMPIAS --- */
        #preloader { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: var(--color-fondo); z-index: 99999; display: flex; flex-direction: column; justify-content: center; align-items: center; transition: opacity 0.6s ease, visibility 0.6s ease; }
        #preloader.oculto { opacity: 0; visibility: hidden; }
        .loader-logo { font-family: var(--fuente-titulos); font-size: 2.5rem; font-weight: 700; color: var(--color-texto-principal); margin-bottom: 20px; animation: pulse 1.5s infinite ease-in-out; }
        .loader-logo span { color: var(--color-acento-teddy); font-style: italic; }
        .loader-spinner { width: 40px; height: 40px; border: 3px solid var(--color-teddy-claro); border-top: 3px solid var(--color-acento-teddy); border-radius: 50%; animation: spin 1s linear infinite; }

        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
        /* Pulse ajustado a opacidad para evitar scale y repaints costosos */
        @keyframes pulse { 0%, 100% { opacity: 1; transform: translate3d(0,0,0); } 50% { opacity: 0.6; transform: translate3d(0,-2px,0); } }

        /* Animación de entrada general */
        .animar-oculto { opacity: 0; transform: translate3d(0, 40px, 0); transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1); will-change: transform, opacity; }
        .animar-visible { opacity: 1; transform: translate3d(0, 0, 0); }
        .delay-1 { transition-delay: 100ms; } .delay-2 { transition-delay: 200ms; } .delay-3 { transition-delay: 300ms; } .delay-4 { transition-delay: 400ms; }

        /* ==========================================================================
           3. BOTONES
           ========================================================================== */
        .btn-principal { display: inline-block; background-color: var(--color-acento-teddy); color: #FFFFFF; padding: 12px 24px; border-radius: 50px; font-size: 0.95rem; font-weight: 500; transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(212, 163, 115, 0.3); text-align: center; cursor: pointer; border: none; }
        .btn-principal:hover { background-color: var(--color-teddy-hover); transform: translate3d(0, -2px, 0); box-shadow: 0 6px 20px rgba(212, 163, 115, 0.4); color: #FFFFFF; }
        
        .btn-secundario { display: inline-block; background-color: transparent; color: var(--color-texto-principal); padding: 10px 24px; border-radius: 50px; font-size: 0.95rem; font-weight: 500; border: 2px solid var(--color-texto-principal); transition: all 0.3s ease; text-align: center; }
        .btn-secundario:hover { background-color: var(--color-texto-principal); color: #FFFFFF; transform: translate3d(0, -2px, 0); }

        .btn-premium { display: inline-block; background-color: transparent; color: var(--color-acento-teddy); padding: 12px 24px; border-radius: 50px; font-size: 0.95rem; font-weight: 500; border: 2px solid var(--color-acento-teddy); transition: all 0.3s ease; text-align: center; }
        .btn-premium:hover { background-color: var(--color-acento-teddy); color: #FFFFFF; transform: translate3d(0, -2px, 0); box-shadow: 0 6px 20px rgba(212, 163, 115, 0.4); }

        .btn-whatsapp { display: flex; align-items: center; justify-content: center; gap: 8px; background-color: #25D366; color: white; padding: 12px 24px; border-radius: 50px; font-weight: 600; font-size: 0.95rem; transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3); }
        .btn-whatsapp:hover { background-color: #128C7E; transform: translate3d(0, -2px, 0); box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4); color: white; }

        /* ==========================================================================
           4. CABECERA
           ========================================================================== */
        header { position: fixed; top: 0; left: 0; width: 100%; background-color: rgba(250, 246, 240, 0.95); backdrop-filter: blur(10px); z-index: 1000; box-shadow: 0 2px 15px rgba(0,0,0,0.03); padding: 15px 0; transition: all 0.3s ease; }
        .nav-container { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; padding: 0 5%; }
        .logo { font-family: var(--fuente-titulos); font-size: 1.8rem; font-weight: 700; color: var(--color-texto-principal); letter-spacing: -0.5px; }
        .logo span { color: var(--color-acento-teddy); font-style: italic; }
        .volver-inicio { display: flex; align-items: center; gap: 8px; font-weight: 500; font-size: 0.95rem; transition: color 0.3s; }
        .volver-inicio:hover { color: var(--color-acento-teddy); }

        /* ==========================================================================
           5. HERO DE CATEGORÍA
           ========================================================================== */
        .hero-categoria { padding-top: 140px; padding-bottom: 40px; text-align: center; position: relative; }
        .hero-categoria h1 { font-size: clamp(2.5rem, 6vw, 3.5rem); margin-bottom: 15px; }
        .hero-categoria p { font-size: 1.1rem; max-width: 650px; margin: 0 auto; margin-bottom: 30px; }
        
        .alerta-personalizacion {
            background-color: var(--color-seccion-clara);
            border: 1px solid rgba(212, 163, 115, 0.3);
            border-left: 4px solid var(--color-acento-teddy);
            padding: 20px 30px;
            border-radius: 0 12px 12px 0;
            display: inline-flex;
            align-items: center;
            gap: 15px;
            max-width: 800px;
            margin: 0 auto;
            text-align: left;
            box-shadow: var(--sombra-suave);
        }
        .alerta-personalizacion i { font-size: 2rem; color: var(--color-acento-teddy); }
        .alerta-personalizacion p { margin: 0; font-size: 0.95rem; color: var(--color-texto-principal); }

        /* ==========================================================================
           6. ESCAPARATE VIP (LOS 3 CELULARES OPTIMIZADOS)
           ========================================================================== */
        .escaparate-vip { padding: 60px 0; }
        .grid-celulares { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; justify-items: center; align-items: end; }
        
        .columna-modelo { display: flex; flex-direction: column; align-items: center; width: 100%; max-width: 320px; }
        .etiqueta-nivel { font-family: var(--fuente-titulos); font-size: 1.5rem; margin-bottom: 20px; color: var(--color-texto-principal); font-weight: 600; }
        
        /* Celular Libre de Bugs (Sin masks ni will-change problemáticos) */
        .celular-demo {
            background: var(--color-fondo); border-radius: 40px; border: 10px solid var(--color-texto-principal);
            overflow: hidden; box-shadow: var(--sombra-suave); position: relative; width: 100%; aspect-ratio: 9/19;
            margin-bottom: 25px; will-change: transform;
        }
        
        /* Imagen del Demo */
        .celular-demo img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
        .celular-demo:hover img { transform: scale(1.05); } /* Scale en imágenes internas está bien, no afecta textos */

        /* REGLA DE ORO ANTI-BUGS APLICADA: Movimientos Nativos 3D (Súper fluidos) */
        .celular-basico { animation: flotarBasico 5s ease-in-out infinite; }
        @keyframes flotarBasico { 
            0%, 100% { transform: translate3d(0, 0, 0); } 
            50% { transform: translate3d(0, -10px, 0); } 
        }
        
        /* 2. INTERMEDIO (Más Grande, Teddy) */
        .celular-intermedio { border-color: var(--color-acento-teddy); animation: flotarInter 4.5s ease-in-out 0.5s infinite; box-shadow: 0 15px 35px rgba(212, 163, 115, 0.2); }
        .celular-intermedio::before { background-color: var(--color-acento-teddy); }
        @keyframes flotarInter { 
            0%, 100% { transform: translate3d(0, -10px, 0); } 
            50% { transform: translate3d(0, -25px, 0); } 
        }
        
        /* 3. PREMIUM (Levitación VIP Libre de Bugs) */
        .celular-premium { background: #0A192F; border-color: #0A192F; animation: flotarPremium 4s ease-in-out 1s infinite; position: relative; }
        .celular-premium::before { background-color: #0A192F; }
        /* Brillo interno simulado sin scale */
        .celular-premium::after { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; border-radius: 30px; box-shadow: inset 0 0 20px rgba(212, 163, 115, 0.5); pointer-events: none; z-index: 5; }
        
        /* FIX: Reemplazo de Scale por translate3d y animación de box-shadow */
        @keyframes flotarPremium {
            0%, 100% { transform: translate3d(0, -5px, 0); box-shadow: 0 15px 35px rgba(10, 25, 47, 0.3), 0 0 20px rgba(212, 163, 115, 0.2); }
            50% { transform: translate3d(0, -20px, 0); box-shadow: 0 25px 45px rgba(10, 25, 47, 0.4), 0 0 40px rgba(212, 163, 115, 0.5); }
        }

        .acciones-modelo { display: flex; flex-direction: column; gap: 12px; width: 100%; }

        /* ==========================================================================
           6.5 PASOS DE COMPRA
           ========================================================================== */
        .pasos-compra { margin-top: 60px; padding-top: 60px; border-top: 1px solid rgba(0,0,0,0.05); }
        .pasos-header { text-align: center; margin-bottom: 40px; }
        .pasos-header h2 { font-size: 2.2rem; margin-bottom: 10px; }
        .pasos-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
        
        .paso-card { background: #FFFFFF; padding: 30px 25px; border-radius: var(--borde-radio); box-shadow: var(--sombra-suave); position: relative; transition: transform 0.3s ease; border-top: 3px solid transparent; }
        .paso-card:hover { transform: translate3d(0, -5px, 0); border-top-color: var(--color-acento-teddy); }
        .paso-numero { width: 45px; height: 45px; background: var(--color-teddy-claro); color: var(--color-acento-teddy); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--fuente-titulos); font-size: 1.5rem; font-weight: bold; margin-bottom: 20px; }
        .paso-card h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--color-texto-principal); }
        .paso-card p { font-size: 0.9rem; }

        /* ==========================================================================
           7. PAQUETES Y PRECIOS (FLUIDOS Y SIN CONFLICTOS)
           ========================================================================== */
        .precios { background-color: var(--color-seccion-clara); }
        .precios-grid { display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; gap: 30px; margin-top: 40px; }
        
        .precio-card { 
            background: var(--color-fondo); border-radius: var(--borde-radio); padding: 40px 30px; width: 100%; text-align: center; box-shadow: var(--sombra-suave); position: relative; 
            /* Transición limpia que no pelea con keyframes */
            transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease; 
        }
        .precio-card:hover { transform: translate3d(0, -10px, 0); }
        
        /* Tarjeta Popular desplazada hacia arriba en Y, no con Scale */
        .precio-card.popular { transform: translate3d(0, -15px, 0); border: 2px solid var(--color-acento-teddy); box-shadow: var(--sombra-fuerte); z-index: 2; padding: 50px 30px; }
        .precio-card.popular:hover { transform: translate3d(0, -25px, 0); box-shadow: 0 25px 45px rgba(212, 163, 115, 0.3); }
        
        .etiqueta-popular { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: var(--color-acento-teddy); color: #fff; padding: 5px 15px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; white-space: nowrap; }
        
        /* Premium con animación de Latido fluido (REGLA DE ORO) */
        .precio-card.premium { 
            background: linear-gradient(135deg, var(--color-texto-principal) 0%, #112240 100%); 
            color: #FFFFFF; border: 1px solid rgba(212, 163, 115, 0.3); z-index: 1; 
            will-change: transform;
        }
        
        .precio-card.premium.animar-visible { animation: latidoPrecioPremium 4s ease-in-out 1.5s infinite; }
        
        /* FIX: Reemplazo de Scale por translate3d para mantener textos nítidos SIEMPRE */
        @keyframes latidoPrecioPremium {
            0%, 100% { transform: translate3d(0, 0, 0); box-shadow: 0 15px 35px rgba(10, 25, 47, 0.2), 0 0 20px rgba(212, 163, 115, 0.15); }
            50% { transform: translate3d(0, -10px, 0); box-shadow: 0 20px 45px rgba(10, 25, 47, 0.3), 0 0 45px rgba(212, 163, 115, 0.4); }
        }
        
        .precio-card.premium:hover { animation-play-state: paused; transform: translate3d(0, -15px, 0) !important; box-shadow: 0 25px 50px rgba(10, 25, 47, 0.4), 0 0 35px rgba(212, 163, 115, 0.3) !important; }
        
        .etiqueta-estrella { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: linear-gradient(90deg, #D4A373, #E9D8A6, #D4A373); color: var(--color-texto-principal); padding: 6px 20px; border-radius: 20px; font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; box-shadow: 0 4px 10px rgba(212, 163, 115, 0.4); white-space: nowrap;}
        
        .precio-header h3 { font-size: 1.5rem; margin-bottom: 10px; }
        .precio-card.premium .precio-header h3 { color: var(--color-acento-teddy); }
        .precio-monto { font-family: var(--fuente-titulos); font-size: 3rem; color: var(--color-texto-principal); font-weight: 700; margin-bottom: 20px; display: flex; justify-content: center; align-items: flex-start;}
        .precio-card.premium .precio-monto { color: #FFFFFF; }
        .precio-monto span { font-size: 1rem; color: var(--color-texto-secundario); font-weight: 400; font-family: var(--fuente-textos); margin-top: 10px; margin-left: 5px;}
        .precio-card.premium .precio-monto span { color: #A0AEC0; }
        
        .lista-funciones { list-style: none; text-align: left; margin-bottom: 30px; }
        .lista-funciones li { margin-bottom: 12px; font-size: 0.95rem; display: flex; align-items: flex-start; gap: 10px; }
        .lista-funciones li i { color: var(--color-acento-teddy); margin-top: 4px; font-size: 1.1rem; }
        .lista-funciones li.no-incluido { color: #A0AEC0; text-decoration: line-through; }
        .lista-funciones li.no-incluido i { color: #A0AEC0; }
        .precio-card.premium .lista-funciones li { color: #f1f5f9; }

        /* ==========================================================================
           8. FOOTER
           ========================================================================== */
        footer { background-color: var(--color-texto-principal); color: #FFFFFF; padding: 60px 0 20px; }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin-bottom: 40px; }
        .footer-col h3 { font-family: var(--fuente-titulos); color: var(--color-acento-teddy); font-size: 1.2rem; margin-bottom: 20px; }
        .footer-col p, .footer-col a { color: #A0AEC0; font-size: 0.9rem; margin-bottom: 10px; display: block; transition: color 0.3s; }
        .footer-col a:hover { color: var(--color-acento-teddy); }
        .copyright { text-align: center; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; color: #A0AEC0; font-size: 0.85rem; }

        /* ==========================================================================
           9. RESPONSIVO (MÓVILES Y TABLETS)
           ========================================================================== */
        @media (max-width: 992px) {
            .grid-celulares { grid-template-columns: 1fr; gap: 60px; }
            .pasos-grid { grid-template-columns: repeat(2, 1fr); }
            .precios-grid { grid-template-columns: 1fr; max-width: 450px; margin: 40px auto 0; }
            
            /* En móviles desactivamos elevaciones base extremas */
            .precio-card.popular, .precio-card.premium { transform: translate3d(0,0,0); padding: 40px 30px; }
            .precio-card.popular:hover, .precio-card.premium:hover { transform: translate3d(0,-5px,0); }
            .celular-intermedio { transform: translate3d(0,0,0); }
            
            @keyframes flotarInter { 
                0%, 100% { transform: translate3d(0, 0, 0); } 
                50% { transform: translate3d(0, -10px, 0); } 
            }
            @keyframes flotarPremium {
                0%, 100% { transform: translate3d(0, 0, 0); box-shadow: 0 15px 35px rgba(10, 25, 47, 0.3), 0 0 20px rgba(212, 163, 115, 0.2); }
                50% { transform: translate3d(0, -10px, 0); box-shadow: 0 25px 45px rgba(10, 25, 47, 0.4), 0 0 40px rgba(212, 163, 115, 0.5); }
            }
            @keyframes latidoPrecioPremium {
                0%, 100% { transform: translate3d(0, 0, 0); box-shadow: 0 15px 35px rgba(10, 25, 47, 0.2), 0 0 20px rgba(212, 163, 115, 0.15); }
                50% { transform: translate3d(0, -8px, 0); box-shadow: 0 20px 45px rgba(10, 25, 47, 0.3), 0 0 45px rgba(212, 163, 115, 0.4); }
            }
        }
        @media (max-width: 768px) {
            .pasos-grid { grid-template-columns: 1fr; } 
            .hero-categoria h1 { font-size: 2.5rem; }
        }