/* ==========================================================================
           1. SISTEMA DE DISEÑO (DARK MODE / LUXURY TECH)
           ========================================================================== */
        :root {
            /* Colores Base */
            --color-bg-base: #030303; /* Negro absoluto casi OLED */
            --color-bg-card: rgba(20, 20, 25, 0.6); /* Cristal oscuro */
            --color-texto-main: #FFFFFF;
            --color-texto-muted: #A1A1AA;
            
            /* Acentos */
            --color-neon: #00E5FF; /* Cyan Tech */
            --color-neon-dim: rgba(0, 229, 255, 0.2);
            --color-borde: rgba(255, 255, 255, 0.08);
            
            /* Tipografías */
            --font-display: 'Rajdhani', sans-serif;
            --font-body: 'Inter', sans-serif;
            
            /* Efectos */
            --blur-card: blur(16px);
            --borde-radio: 12px;
        }

        /* ==========================================================================
           2. RESET Y REGLA DE ORO (ANTI-JITTER)
           ========================================================================== */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        
        body { 
            font-family: var(--font-body); 
            background-color: var(--color-bg-base); 
            color: var(--color-texto-main); 
            line-height: 1.6; 
            overflow-x: hidden; 
            /* REGLA DE ORO: Tipografías nítidas al 100% */
            -webkit-font-smoothing: antialiased; 
            -moz-osx-font-smoothing: grayscale; 
        }

        h1, h2, h3 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 2px; }
        a { text-decoration: none; color: inherit; }
        
        .contenedor { width: 100%; max-width: 600px; margin: 0 auto; padding: 0 6%; }
        .seccion-padding { padding: 80px 0; }

        /* ==========================================================================
           3. CLASES MAESTRAS: GLASSMORPHISM DARK Y ANIMACIONES SCROLL
           ========================================================================== */
        .tech-card {
            background: var(--color-bg-card);
            backdrop-filter: var(--blur-card);
            -webkit-backdrop-filter: var(--blur-card);
            border: 1px solid var(--color-borde);
            border-radius: var(--borde-radio);
            padding: 40px 30px;
            position: relative;
        }

        /* Animaciones Scroll (Intersection Observer) */
        .fade-up { opacity: 0; transform: translate3d(0, 40px, 0); transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1); }
        .fade-up.visible { opacity: 1; transform: translate3d(0, 0, 0); }
        .delay-1 { transition-delay: 150ms; }
        .delay-2 { transition-delay: 300ms; }

        /* ==========================================================================
           4. BOTONES E INTERACTIVIDAD LUXURY TECH (SIN SCALE)
           ========================================================================== */
        .btn-neon {
            display: flex; align-items: center; justify-content: center; gap: 10px;
            width: 100%; padding: 16px 24px;
            background-color: transparent;
            color: var(--color-neon);
            border: 1px solid var(--color-neon);
            border-radius: 8px;
            font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; letter-spacing: 2px;
            position: relative; cursor: pointer;
            transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease;
            overflow: hidden;
        }
        
        /* Glow por opacidad, jamás scale */
        .btn-neon::after {
            content: ''; position: absolute; inset: 0;
            box-shadow: 0 0 20px var(--color-neon);
            opacity: 0; transition: opacity 0.3s ease; pointer-events: none;
        }

        .btn-neon:hover { transform: translate3d(0, -3px, 0); background-color: var(--color-neon); color: #000; }
        .btn-neon:hover::after { opacity: 1; }

        .btn-maps {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            background: rgba(255,255,255,0.05); color: var(--color-texto-main);
            border: 1px solid rgba(255,255,255,0.1); padding: 12px 20px; border-radius: 8px;
            font-family: var(--font-body); font-size: 0.9rem; font-weight: 500;
            transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease; cursor: pointer; width: 100%; margin-bottom: 10px;
        }
        .btn-maps:hover { background: rgba(255,255,255,0.1); transform: translate3d(0, -3px, 0); border-color: rgba(255,255,255,0.3); }

        /* ==========================================================================
           5. PRELOADER TECH
           ========================================================================== */
        #preloader { position: fixed; inset: 0; background: var(--color-bg-base); z-index: 9999; display: flex; flex-direction: column; justify-content: center; align-items: center; transition: opacity 0.6s ease; }
        #preloader.oculto { opacity: 0; pointer-events: none; }
        
        .loader-ring { width: 60px; height: 60px; border: 2px solid var(--color-borde); border-top: 2px solid var(--color-neon); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 20px; }
        .loader-text { font-family: var(--font-display); font-size: 1.2rem; letter-spacing: 4px; color: var(--color-texto-muted); text-transform: uppercase; }
        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

        /* ==========================================================================
           6. PORTADA (HERO)
           ========================================================================== */
        .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; filter: brightness(0.4) contrast(1.2); }
        .hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(3,3,3,0.1) 0%, rgba(3,3,3,1) 100%); }
        
        .hero-content { position: relative; z-index: 2; width: 100%; text-align: center; }
        
        .hero-etiqueta { display: inline-block; border: 1px solid var(--color-neon); color: var(--color-neon); padding: 6px 16px; border-radius: 20px; font-size: 0.75rem; letter-spacing: 3px; margin-bottom: 20px; font-family: var(--font-display); background: var(--color-neon-dim); }
        
        .hero-nombre { font-size: 4.5rem; line-height: 1; font-weight: 700; margin-bottom: 15px; text-shadow: 0 10px 30px rgba(0,0,0,0.8); }
        .hero-fecha { font-size: 1.1rem; color: var(--color-texto-muted); letter-spacing: 2px; }

        /* ==========================================================================
           7. PASE VIP (FLOTANTE)
           ========================================================================== */
        .pase-vip { margin-top: -30px; position: relative; z-index: 10; padding: 0 20px; text-align: center; }
        .pase-card { background: var(--color-bg-base); color: var(--color-texto-main); padding: 25px; border-radius: var(--borde-radio); box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6); max-width: 500px; margin: 0 auto; border: 1px solid rgba(0, 229, 255, 0.3); position: relative; overflow: hidden; }
        /* Reflejo tech */
        .pase-card::after { content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%; background: linear-gradient(to right, rgba(0,229,255,0) 0%, rgba(0,229,255,0.1) 50%, rgba(0,229,255,0) 100%); transform: skewX(-20deg); animation: brilloTech 5s infinite 2s; pointer-events: none; }
        @keyframes brilloTech { 0%, 50% { left: -100%; } 100% { left: 200%; } }
        
        .pase-titulo { font-family: var(--font-display); color: var(--color-neon); font-size: 1.1rem; letter-spacing: 3px; margin-bottom: 15px; display: flex; align-items: center; justify-content: center; gap: 8px; }
        .pase-invitado { font-size: 1.4rem; font-weight: 500; margin-bottom: 5px; }
        .pase-numero { font-family: var(--font-body); font-size: 0.9rem; color: var(--color-texto-muted); }

        /* ==========================================================================
           8. MI FOTO Y MENSAJE FORMAL (NUEVA SECCIÓN BÁSICA)
           ========================================================================== */
        .foto-marco { 
            position: relative; width: 100%; max-width: 250px; aspect-ratio: 3/4; margin: 0 auto 35px; 
            border-radius: var(--borde-radio); padding: 4px; 
            background: linear-gradient(135deg, var(--color-neon), transparent, rgba(255,255,255,0.2)); 
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        }
        .foto-marco img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; filter: grayscale(10%) contrast(1.1); }
        
        .texto-formal { font-size: 1.05rem; color: var(--color-texto-muted); margin-bottom: 30px; font-weight: 300; line-height: 1.8; }
        .padres-nombres { font-family: var(--font-display); font-size: 1.5rem; color: var(--color-texto-main); letter-spacing: 1px; }

        /* ==========================================================================
           9. CUENTA REGRESIVA DIGITAL
           ========================================================================== */
        .contador-grid { display: flex; justify-content: center; gap: 12px; margin-top: 40px; }
        .contador-box { background: rgba(0,0,0,0.5); border: 1px solid var(--color-borde); width: 75px; height: 85px; display: flex; flex-direction: column; justify-content: center; align-items: center; border-radius: 8px; position: relative; }
        .contador-box::before { content: ''; position: absolute; top: 0; left: 10%; width: 80%; height: 2px; background: var(--color-neon); opacity: 0.5; }
        
        .contador-numero { font-family: var(--font-display); font-size: 2.2rem; font-weight: 700; line-height: 1; color: var(--color-texto-main); text-shadow: 0 0 10px rgba(255,255,255,0.2); }
        .contador-label { font-size: 0.6rem; text-transform: uppercase; letter-spacing: 2px; margin-top: 5px; color: var(--color-texto-muted); }

        /* ==========================================================================
           10. UBICACIONES Y RSVP
           ========================================================================== */
        .titulo-seccion { font-size: 2rem; text-align: center; margin-bottom: 30px; color: var(--color-texto-main); }
        .titulo-seccion span { color: var(--color-neon); }
        
        .ubicacion-icono { width: 50px; height: 50px; background: var(--color-neon-dim); color: var(--color-neon); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin: 0 auto 15px; border: 1px solid rgba(0, 229, 255, 0.3); }
        
        /* ==========================================================================
           11. MEDIA QUERIES
           ========================================================================== */
        @media (min-width: 768px) {
            .hero-nombre { font-size: 6rem; }
            .contador-box { width: 90px; height: 100px; }
            .contador-numero { font-size: 2.8rem; }
        }