/* ==========================================================================
           1. SISTEMA DE DISEÑO (DARK ACADEMIA & GALA)
           ========================================================================== */
        :root {
            /* Paleta Dark Academia */
            --color-fondo-base: #070d14; /* Navy extremo oscuro */
            --color-card-glass: rgba(15, 25, 40, 0.65);
            --color-navy: #0A192F;      
            --color-oro: #D4AF37;       
            --color-oro-hover: #B5952F;
            --color-texto-principal: #F8FAFC;
            --color-texto-secundario: #CBD5E1;
            
            --fuente-titulos: 'Cinzel', serif;
            --fuente-textos: 'Montserrat', sans-serif;

            --sombra-suave: 0 10px 30px rgba(0, 0, 0, 0.4);
            --borde-radio: 16px;
        }

        /* ==========================================================================
           2. RESET Y UTILIDADES GLOBALES (GPU OPTIMIZADO)
           ========================================================================== */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        
        body { 
            font-family: var(--fuente-textos); 
            background-color: var(--color-fondo-base); 
            /* Textura generada con SVG embebido y gradientes */
            background-image: 
                radial-gradient(circle at 15% 50%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 85% 30%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
                url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");
            color: var(--color-texto-principal); 
            line-height: 1.6; 
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        h1, h2, h3 { font-family: var(--fuente-titulos); font-weight: 600; color: var(--color-oro); }
        p { color: var(--color-texto-secundario); }
        .contenedor { max-width: 800px; margin: 0 auto; padding: 0 6%; position: relative; z-index: 10; }
        .seccion-padding { padding: 90px 0; }
        a { text-decoration: none; color: inherit; }

        /* Componente Glassmorphism Premium */
        .glass-card {
            background: var(--color-card-glass);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(212, 175, 55, 0.15);
            border-radius: var(--borde-radio);
            padding: 40px 30px;
            box-shadow: var(--sombra-suave);
        }

        /* Clases Animación Scroll (Cero text-jitter) */
        .fade-up { 
            opacity: 0; 
            transform: translate3d(0, 50px, 0.1px) rotate(0.01deg); 
            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); 
        }
        .fade-up.visible { opacity: 1; transform: translate3d(0, 0, 0.1px) rotate(0.01deg); }
        .delay-1 { transition-delay: 150ms; } 
        .delay-2 { transition-delay: 300ms; }

        /* Botones Globales */
        .btn-oro {
            display: inline-flex; align-items: center; justify-content: center; gap: 10px;
            background: var(--color-oro); color: var(--color-navy); 
            padding: 15px 35px; border-radius: 50px; border: none; cursor: pointer;
            font-family: var(--fuente-textos); font-weight: 700; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 1px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4); transition: transform 0.3s ease, background 0.3s ease;
        }
        .btn-oro:hover { 
            background: var(--color-oro-hover);
            transform: translate3d(0, -4px, 0.1px) rotate(0.01deg); 
        }

        .btn-outline {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            background: rgba(212, 175, 55, 0.05); color: var(--color-oro); 
            border: 1px solid var(--color-oro); padding: 12px 25px; border-radius: 50px;
            font-weight: 500; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px;
            transition: all 0.3s ease; cursor: pointer; backdrop-filter: blur(4px);
        }
        .btn-outline:hover { 
            background: var(--color-oro); color: var(--color-navy); 
            transform: translate3d(0, -3px, 0.1px) rotate(0.01deg);
        }

        /* ==========================================================================
           3. BACKGROUND FLOTANTE (CERO LAG CSS)
           ========================================================================== */
        .bg-flotantes { position: fixed; inset: 0; pointer-events: none; z-index: 1; overflow: hidden; }
        .flotante { 
            position: absolute; bottom: -100px; font-size: 2.5rem; 
            opacity: 0.08; /* Muy sutil para no estorbar */
            will-change: transform; 
            animation: flotarCSS linear infinite; 
            filter: grayscale(100%) sepia(100%) hue-rotate(5deg) saturate(300%) brightness(0.8); /* Tono dorado/antiguo */
        }
        @keyframes flotarCSS {
            0% { transform: translate3d(0, 0, 0.1px) rotate(0deg); }
            100% { transform: translate3d(0, -120vh, 0.1px) rotate(360deg); }
        }

        /* ==========================================================================
           4. PRELOADER Y EXPEDIENTE ACADÉMICO (CSS 3D)
           ========================================================================== */
        #preloader { 
            position: fixed; inset: 0; background: var(--color-fondo-base); z-index: 99999; 
            display: flex; flex-direction: column; justify-content: center; align-items: center; 
            transition: opacity 0.8s ease; 
        }
        #preloader.oculto { opacity: 0; pointer-events: none; }
        
        .loader-icon { font-size: 3.5rem; color: var(--color-oro); margin-bottom: 15px; animation: pulseOpacity 1.5s infinite; }
        .loader-text { font-family: var(--fuente-titulos); font-size: 1.2rem; color: var(--color-texto-secundario); letter-spacing: 4px; text-transform: uppercase;}
        @keyframes pulseOpacity { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

        /* El Expediente Interactivo */
        #pantalla-carpeta { 
            position: fixed; inset: 0; background: rgba(7, 13, 20, 0.95); z-index: 99998; 
            display: flex; flex-direction: column; justify-content: center; align-items: center; 
            transition: opacity 1s ease, visibility 1s ease; backdrop-filter: blur(10px);
        }
        #pantalla-carpeta.oculto { opacity: 0; visibility: hidden; pointer-events: none; }
        
        .carpeta-wrapper { 
            position: relative; width: 320px; height: 240px; cursor: pointer; 
            perspective: 1200px; margin-bottom: 30px;
        }
        
        .carpeta-back { 
            position: absolute; inset: 0; background: #1a2233; 
            border-radius: 8px 15px 8px 8px; box-shadow: 0 20px 40px rgba(0,0,0,0.8); 
            border: 1px solid rgba(255,255,255,0.05);
        }
        
        .carpeta-papel { 
            position: absolute; inset: 10px 15px; background: #FDF9EE; 
            border-radius: 4px; padding: 40px 20px; text-align: center; 
            box-shadow: inset 0 0 20px rgba(0,0,0,0.1);
        }
        .carpeta-papel h2 { font-family: var(--fuente-titulos); color: #0A192F; font-size: 1.5rem; margin-bottom: 10px; }
        .carpeta-papel p { font-family: var(--fuente-textos); color: #4A5568; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 2px;}
        
        .carpeta-front { 
            position: absolute; inset: 0; background: #111a28; 
            border-radius: 8px 15px 8px 8px; 
            transform-origin: bottom; /* Se abrirá hacia abajo */
            transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1); 
            box-shadow: inset 0 2px 10px rgba(255,255,255,0.05); 
            border: 1px solid rgba(255,255,255,0.1);
            display: flex; justify-content: center; align-items: center;
        }
        
        .etiqueta-sello { 
            background: var(--color-fondo-base); padding: 15px 25px; border-radius: 4px; 
            font-family: var(--fuente-titulos); color: var(--color-oro); font-size: 0.9rem;
            font-weight: bold; border: 1px solid var(--color-oro); text-align: center;
            letter-spacing: 2px;
        }
        
        /* Estado abierto: rotación en la GPU */
        .carpeta-wrapper.abierta .carpeta-front { transform: rotateX(-160deg); }
        .carpeta-wrapper.abierta { pointer-events: none; }
        
        .carpeta-instruccion { font-size: 0.85rem; color: var(--color-oro); text-transform: uppercase; letter-spacing: 3px; animation: pulseOpacity 2s infinite;}

        /* Botón de Música Flotante */
        #btn-musica { 
            position: fixed; bottom: 25px; right: 25px; width: 55px; height: 55px; 
            background: rgba(10, 25, 47, 0.8); backdrop-filter: blur(10px);
            border: 1px solid rgba(212, 175, 55, 0.4); border-radius: 50%; 
            display: flex; justify-content: center; align-items: center; z-index: 9990; 
            cursor: pointer; font-size: 1.4rem; color: var(--color-oro); 
            box-shadow: var(--sombra-suave);
        }
        .girar { animation: girarDisco 4s linear infinite; }
        @keyframes girarDisco { 100% { transform: rotate(360deg); } }

        /* ==========================================================================
           5. SECCIONES CORE (PORTADA, CARTA, CONTADOR, UBICACIONES)
           ========================================================================== */
        .hero { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; overflow: hidden; }
        .hero-bg { position: absolute; inset: 0; z-index: 0; }
        .hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.3; }
        .hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(7,13,20,0.2) 0%, rgba(7,13,20,1) 100%); }
        .hero-content { position: relative; z-index: 2; width: 100%; max-width: 600px; text-align: center; }
        .hero-grado { font-family: var(--fuente-textos); font-size: 0.9rem; letter-spacing: 5px; text-transform: uppercase; color: var(--color-oro); margin-bottom: 20px; font-weight: 500; }
        .hero-nombre { font-family: var(--fuente-titulos); font-size: 4.5rem; line-height: 1.1; color: var(--color-texto-principal); margin-bottom: 20px; text-shadow: 2px 2px 10px rgba(0,0,0,0.8); }
        .hero-generacion { font-family: var(--fuente-textos); font-size: 1.1rem; color: var(--color-texto-secundario); letter-spacing: 3px; font-weight: 300; }
        .hero-linea { width: 60px; height: 2px; background: var(--color-oro); margin: 30px auto; }

        .titulo-seccion { font-size: 2.2rem; text-align: center; margin-bottom: 40px; color: var(--color-oro); }
        .subtitulo-seccion { text-align: center; font-size: 1rem; color: var(--color-texto-secundario); margin-top: -25px; margin-bottom: 40px; }

        /* Contador */
        .contador-grid { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
        .contador-box { 
            background: rgba(255,255,255,0.03); width: 85px; height: 90px; 
            display: flex; flex-direction: column; justify-content: center; align-items: center; 
            border-radius: 12px; border: 1px solid rgba(212, 175, 55, 0.2); backdrop-filter: blur(5px);
        }
        .contador-numero { font-family: var(--fuente-titulos); font-size: 2.2rem; color: var(--color-texto-principal); line-height: 1; font-weight: 600; }
        .contador-label { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 2px; margin-top: 5px; color: var(--color-oro); font-weight: 600; }

        /* Ubicaciones */
        .ubicacion-icono { font-size: 2.5rem; color: var(--color-oro); margin-bottom: 15px; }
        .ubicacion-hora { display: inline-block; background: rgba(212, 175, 55, 0.1); color: var(--color-oro); padding: 5px 15px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; margin-bottom: 20px; border: 1px solid rgba(212, 175, 55, 0.3);}
        .botones-mapa { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; margin-top: 25px; }

        /* ==========================================================================
           6. ITINERARIO (TIMELINE AMPLIADO)
           ========================================================================== */
        .timeline-container { position: relative; max-width: 600px; margin: 0 auto; padding: 20px 0; }
        .timeline-container::before { 
            content: ''; position: absolute; top: 0; bottom: 0; left: 50%; transform: translateX(-50%); 
            width: 2px; background: linear-gradient(to bottom, transparent, var(--color-oro), transparent); 
        }
        .timeline-item { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; position: relative; width: 100%; }
        .timeline-item:nth-child(even) { flex-direction: row-reverse; }
        
        .timeline-dot { 
            position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); 
            width: 20px; height: 20px; background: var(--color-fondo-base); 
            border: 3px solid var(--color-oro); border-radius: 50%; z-index: 2; 
            box-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
        }
        
        .timeline-content { width: 43%; text-align: right; }
        .timeline-item:nth-child(even) .timeline-content { text-align: left; }
        .timeline-hora { font-family: var(--fuente-titulos); font-size: 1.2rem; color: var(--color-oro); font-weight: 600; margin-bottom: 5px; }
        .timeline-texto { font-size: 0.9rem; color: var(--color-texto-secundario); }

        /* ==========================================================================
           7. CÓDIGO DE VESTIMENTA Y LLUVIA DE SOBRES
           ========================================================================== */
        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
        .dress-icon { font-size: 3rem; color: var(--color-oro); margin-bottom: 15px; }
        
        .regalo-icono { font-size: 3.5rem; color: var(--color-oro); margin-bottom: 20px; }
        .datos-bancarios { 
            background: rgba(0,0,0,0.3); padding: 20px; border-radius: 12px; 
            margin-top: 20px; font-family: monospace; font-size: 1.1rem; color: var(--color-oro); border: 1px dashed rgba(212, 175, 55, 0.4);
        }

        /* ==========================================================================
           8. GALERÍA ESTÁNDAR (GRID ANTI-JITTER)
           ========================================================================== */
        .galeria-grid { 
            display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 15px; 
        }
        .foto-estandar { 
            position: relative; width: 100%; height: 250px; border-radius: 12px; overflow: hidden; 
            border: 1px solid rgba(255,255,255,0.05); transition: transform 0.4s ease, box-shadow 0.4s ease;
        }
        .foto-estandar img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.9); }
        /* Levantamos la tarjeta entera con translate3d, NUNCA hacemos scale en la imagen */
        .foto-estandar:hover { 
            transform: translate3d(0, -8px, 0.1px) rotate(0.01deg); 
            box-shadow: 0 15px 30px rgba(0,0,0,0.6); z-index: 2;
        }
        .foto-estandar:hover img { filter: brightness(1.1); }

        /* ==========================================================================
           9. RSVP (LIQUID GOLD) Y FOOTER
           ========================================================================== */
        .seccion-rsvp { 
            position: relative; background: #0b1524; color: var(--color-texto-principal); 
            border-radius: 24px; margin: 0 20px; padding: 80px 20px; text-align: center; 
            overflow: hidden; border: 1px solid rgba(212, 175, 55, 0.15); box-shadow: var(--sombra-suave);
            z-index: 10;
        }
        .seccion-rsvp::before, .seccion-rsvp::after {
            content: ''; position: absolute; width: 450px; height: 450px;
            background: linear-gradient(135deg, var(--color-oro) 0%, transparent 60%);
            border-radius: 43% 57% 65% 35% / 45% 55% 45% 55%;
            animation: liquidFlow 15s linear infinite; opacity: 0.1; z-index: 0; pointer-events: none; will-change: transform;
        }
        .seccion-rsvp::before { top: -200px; left: -200px; }
        .seccion-rsvp::after { bottom: -200px; right: -200px; background: linear-gradient(315deg, var(--color-oro) 0%, transparent 60%); animation-direction: reverse; animation-duration: 20s; }
        
        @keyframes liquidFlow {
            0% { transform: rotate(0deg) translate3d(0, 0, 0); }
            33% { transform: rotate(120deg) translate3d(15px, -15px, 0); }
            66% { transform: rotate(240deg) translate3d(-15px, 15px, 0); }
            100% { transform: rotate(360deg) translate3d(0, 0, 0); }
        }

        .rsvp-content {
            position: relative; z-index: 1; background: rgba(7, 13, 20, 0.7); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
            padding: 50px 30px; border-radius: 20px; border: 1px solid rgba(255, 255, 255, 0.05); max-width: 600px; margin: 0 auto;
        }
        .rsvp-icono { font-size: 3.5rem; color: var(--color-oro); margin-bottom: 20px; display: inline-block;}

        .footer-comercial { padding: 60px 20px 30px; text-align: center; color: var(--color-texto-secundario); position: relative; z-index: 10;}
        .social-links { display: flex; justify-content: center; gap: 20px; margin-bottom: 20px; }
        .social-link { font-size: 1.5rem; color: var(--color-oro); transition: transform 0.3s; }
        .social-link:hover { transform: translate3d(0, -4px, 0.1px) rotate(0.01deg); }
        .creditos { font-size: 0.8rem; border-top: 1px solid rgba(212, 175, 55, 0.2); padding-top: 20px; max-width: 300px; margin: 0 auto; }

        @media (max-width: 600px) {
            .hero-nombre { font-size: 3rem; }
            .grid-2 { grid-template-columns: 1fr; }
            .timeline-container::before { left: 20px; }
            .timeline-item { flex-direction: column !important; align-items: flex-start; padding-left: 50px; }
            .timeline-dot { left: 20px; transform: translate(-50%, -50%); }
            .timeline-content { width: 100%; text-align: left !important; }
        }