/* =========================================
           1. SISTEMA DE DISEÑO (ELEGANCIA OSCURA / ORO)
           ========================================= */
        :root {
            /* Tema Dark VIP */
            --color-texto-principal: #FFFFFF;
            --color-texto-secundario: #D0D0D0;
            --color-medianoche: #050505;
            
            /* Tonos Dorados */
            --color-oro: #D4AF37;
            --color-oro-claro: #F3E5AB;
            --color-oro-oscuro: #997A00;
            
            /* Glassmorphism (Cristal Ahumado) */
            --bg-cristal: rgba(20, 20, 20, 0.45);
            --blur-cristal: blur(16px);
            --borde-cristal: 1px solid rgba(212, 175, 55, 0.15);
            --sombra-cristal: 0 15px 35px rgba(0, 0, 0, 0.6), inset 0 0 15px rgba(255, 255, 255, 0.02);
            
            /* Tipografías */
            --fuente-titulos: 'Playfair Display', serif;
            --fuente-textos: 'Montserrat', sans-serif;
        }

        /* =========================================
           2. RESET Y UTILIDADES GLOBALES
           ========================================= */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        
        html { scroll-behavior: smooth; }
        
        body {
            font-family: var(--fuente-textos);
            background-color: var(--color-medianoche);
            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; }
        
        .contenedor { max-width: 600px; margin: 0 auto; padding: 0 6%; position: relative; z-index: 10; }
        .seccion-padding { padding: 80px 0; }
        
        a { text-decoration: none; color: inherit; }

        /* Animaciones Scroll (Regla Cero text jitter) */
        .fade-up {
            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: opacity, transform;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translate3d(0, 0, 0);
        }
        .delay-1 { transition-delay: 200ms; }

        /* =========================================
           3. FONDO GLOBAL FIJO (MEDIANOCHE + RUIDO)
           ========================================= */
        .bg-global {
            position: fixed;
            inset: 0;
            z-index: 0;
            pointer-events: none;
            background-color: var(--color-medianoche);
        }

        /* Textura de Grano/Ruido (Ultra ligero) */
        .bg-ruido {
            position: absolute;
            inset: 0;
            background-image: 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='0.8' 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");
            opacity: 0.9;
        }

        /* =========================================
           4. POLVO DE ORO (PARTÍCULAS CSS)
           ========================================= */
        .particulas-container {
            position: fixed;
            inset: 0;
            z-index: 1;
            pointer-events: none;
            overflow: hidden;
        }

        .particula {
            position: absolute;
            bottom: -20px;
            width: 4px;
            height: 4px;
            background-color: var(--color-oro);
            border-radius: 50%;
            box-shadow: 0 0 10px 2px rgba(212, 175, 55, 0.4);
            animation: flotarPolvo linear infinite;
            will-change: transform, opacity;
        }

        /* Posiciones y velocidades aleatorias */
        .particula:nth-child(1) { left: 10%; animation-duration: 15s; animation-delay: 0s; width: 3px; height: 3px; }
        .particula:nth-child(2) { left: 25%; animation-duration: 18s; animation-delay: 2s; width: 5px; height: 5px; opacity: 0.6;}
        .particula:nth-child(3) { left: 40%; animation-duration: 12s; animation-delay: 5s; width: 2px; height: 2px; }
        .particula:nth-child(4) { left: 55%; animation-duration: 20s; animation-delay: 1s; opacity: 0.8;}
        .particula:nth-child(5) { left: 70%; animation-duration: 16s; animation-delay: 7s; width: 4px; height: 4px; }
        .particula:nth-child(6) { left: 85%; animation-duration: 14s; animation-delay: 3s; width: 3px; height: 3px; opacity: 0.5;}
        .particula:nth-child(7) { left: 15%; animation-duration: 19s; animation-delay: 8s; }
        .particula:nth-child(8) { left: 65%; animation-duration: 13s; animation-delay: 4s; width: 5px; height: 5px; opacity: 0.7;}
        .particula:nth-child(9) { left: 80%; animation-duration: 17s; animation-delay: 6s; width: 2px; height: 2px; }
        .particula:nth-child(10) { left: 35%; animation-duration: 22s; animation-delay: 2s; opacity: 0.4;}

        @keyframes flotarPolvo {
            0% { transform: translate3d(0, 0, 0); opacity: 0; }
            10% { opacity: 1; }
            90% { opacity: 1; }
            100% { transform: translate3d(0, -110vh, 0); opacity: 0; }
        }

        /* =========================================
           5. CRISTAL AHUMADO (Clase Maestra)
           ========================================= */
        .glass-card {
            background: var(--bg-cristal);
            backdrop-filter: var(--blur-cristal);
            -webkit-backdrop-filter: var(--blur-cristal);
            border: var(--borde-cristal);
            border-radius: 20px;
            box-shadow: var(--sombra-cristal);
        }

        /* =========================================
           6. BOTONES
           ========================================= */
        .btn-oro {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            background: var(--color-oro);
            color: #000000;
            padding: 15px 35px;
            font-family: var(--fuente-textos);
            font-weight: 600;
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            box-shadow: 0 10px 20px rgba(212, 175, 55, 0.2);
            transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
            position: relative;
            -webkit-backface-visibility: hidden;
            backface-visibility: hidden;
            transform-style: preserve-3d;
            will-change: transform;
        }

        .btn-oro::after {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            border-radius: 50px;
            box-shadow: 0 15px 25px rgba(212, 175, 55, 0.4);
            opacity: 0;
            transition: opacity 0.4s ease;
            pointer-events: none;
            z-index: -1;
        }

        .btn-oro:hover {
            transform: translate3d(0, -4px, 0);
        }
        .btn-oro:hover::after {
            opacity: 1;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(0,0,0,0.3);
            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: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.3s;
            cursor: pointer;
            backdrop-filter: blur(4px);
            will-change: transform;
        }

        .btn-outline:hover {
            background: rgba(212, 175, 55, 0.15);
            transform: translate3d(0, -3px, 0);
        }

        /* =========================================
           7. PRELOADER
           ========================================= */
        #preloader {
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background: var(--color-medianoche);
            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-copas {
            font-size: 4rem;
            color: var(--color-oro);
            animation: brindar 2s ease-in-out infinite;
            margin-bottom: 20px;
        }
        
        @keyframes brindar {
            0%, 100% { transform: translate3d(0, 0, 0) rotate(0deg); }
            50% { transform: translate3d(0, -10px, 0) rotate(5deg); }
        }

        /* =========================================
           8. PORTADA (HERO) CON FUNDIDO A MEDIANOCHE
           ========================================= */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            text-align: center;
            z-index: 10;
        }

        /* Contenedor de la foto de portada */
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            overflow: hidden;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.55; /* Opacidad para legibilidad del texto */
        }

        /* Gradiente para fundir la parte inferior de la foto hacia el color de fondo */
        .hero-fade-bottom {
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(5,5,5,0) 0%, rgba(5,5,5,0.2) 60%, var(--color-medianoche) 100%);
        }

        .hero-content {
            width: 100%;
            max-width: 500px;
            position: relative;
            z-index: 2;
        }

        .hero-edad {
            font-family: var(--fuente-textos);
            font-size: 0.85rem;
            letter-spacing: 6px;
            text-transform: uppercase;
            color: var(--color-oro);
            margin-bottom: 15px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.8);
        }

        .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: 0 5px 20px rgba(0,0,0,0.8);
        }

        .hero-fecha {
            font-family: var(--fuente-textos);
            font-size: 1.1rem;
            color: var(--color-texto-secundario);
            letter-spacing: 2px;
            text-transform: uppercase;
            border-top: 1px solid rgba(212, 175, 55, 0.4);
            border-bottom: 1px solid rgba(212, 175, 55, 0.4);
            display: inline-block;
            padding: 10px 30px;
            margin-top: 10px;
            background: rgba(0,0,0,0.3);
            backdrop-filter: blur(4px);
        }

        /* =========================================
           9. MENSAJE DE INVITACIÓN
           ========================================= */
        .mensaje-intro {
            text-align: center;
            font-size: 1.05rem;
            color: var(--color-texto-secundario);
            line-height: 1.8;
            font-weight: 300;
            padding: 40px 30px;
        }
        
        .mensaje-intro i {
            font-size: 2.5rem;
            color: var(--color-oro);
            margin-bottom: 20px;
            display: block;
            text-shadow: 0 2px 10px rgba(212,175,55,0.3);
        }

        /* =========================================
           10. CUENTA REGRESIVA
           ========================================= */
        .titulo-seccion {
            font-size: 2.2rem;
            text-align: center;
            color: var(--color-oro);
            margin-bottom: 10px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }

        .contador-grid {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: nowrap;
            margin-top: 30px;
        }

        .contador-box {
            flex: 1;
            max-width: 80px;
            height: 90px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

        .contador-numero {
            font-family: var(--fuente-titulos);
            font-size: 2rem;
            color: var(--color-texto-principal);
            line-height: 1;
            margin-bottom: 5px;
        }

        .contador-label {
            font-size: 0.6rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--color-oro);
        }

        /* =========================================
           11. UBICACIÓN
           ========================================= */
        .ubicacion-card {
            padding: 40px 30px;
            text-align: center;
        }

        .ubicacion-icono {
            width: 60px;
            height: 60px;
            background: rgba(212, 175, 55, 0.15);
            color: var(--color-oro);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin: 0 auto 20px;
            box-shadow: inset 0 0 10px rgba(212,175,55,0.2);
        }

        .ubicacion-titulo {
            font-family: var(--fuente-titulos);
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        .ubicacion-texto {
            font-size: 0.95rem;
            color: var(--color-texto-secundario);
            margin-bottom: 25px;
            line-height: 1.6;
        }

        .botones-mapa {
            display: flex;
            flex-direction: column;
            gap: 15px;
            align-items: center;
        }

        /* =========================================
           12. CONFIRMACIÓN RSVP SIMPLE
           ========================================= */
        .rsvp-section {
            text-align: center;
            padding: 60px 20px;
            margin-top: 40px;
            margin-bottom: 80px; /* Espacio antes del footer */
            border-top: 1px solid rgba(212,175,55,0.3);
            border-bottom: 1px solid rgba(212,175,55,0.3);
        }

        .rsvp-section h2 {
            font-size: 2rem;
            margin-bottom: 15px;
        }

        .rsvp-section p {
            color: var(--color-texto-secundario);
            margin-bottom: 30px;
            font-size: 0.95rem;
        }

        /* =========================================
           13. FOOTER
           ========================================= */
        footer {
            text-align: center;
            padding: 30px 20px;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
            position: relative;
            z-index: 10;
        }
        
        footer a {
            color: var(--color-oro);
            font-weight: 500;
        }

        /* =========================================
           RESPONSIVO
           ========================================= */
        @media (max-width: 480px) {
            .hero-nombre { font-size: 3.5rem; }
            .contador-box { max-width: 70px; height: 80px; }
            .contador-numero { font-size: 1.6rem; }
            .contador-label { font-size: 0.55rem; }
            .mensaje-intro { padding: 30px 20px; }
        }