/* === VARIABLES DE TEMA === */
        :root {
            --bg-body: #0b0d12; 
            --text-main: #f5f5f1; 
            --text-muted: #a1a1a1;
            --bg-card: rgba(25, 28, 36, 0.65); 
            --border-card: rgba(255, 255, 255, 0.08);
            --primary: #e50914; 
            --bg-nav: rgba(11, 13, 18, 0.85);
            --bg-fade: rgba(11, 13, 18, 0.98);
        }
        body.light-mode {
            --bg-body: #f8f9fa; 
            --text-main: #212529; 
            --text-muted: #6c757d;
            --bg-card: rgba(255, 255, 255, 0.85); 
            --border-card: rgba(0, 0, 0, 0.08); 
            --primary: #4e73df; 
            --bg-nav: rgba(255, 255, 255, 0.9);
            --bg-fade: rgba(255, 255, 255, 0.95);
        }
        
        body { font-family: 'Poppins', sans-serif; color: var(--text-main); transition: color 0.4s ease; margin: 0; padding-bottom: 50px; min-height: 100vh; position: relative;}

        /* FONDO ANIMADO UNIFICADO */
        .animated-bg {
            position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: -2;
            background: linear-gradient(135deg, #0b0d12, #161b26, #0b0d12);
            background-size: 300% 300%;
            animation: gradientMove 15s ease infinite;
        }
        body.light-mode .animated-bg { background: linear-gradient(135deg, #fdfbfb, #e2e6eb, #fdfbfb); background-size: 300% 300%; }
        @keyframes gradientMove { 0% {background-position: 0% 50%;} 50% {background-position: 100% 50%;} 100% {background-position: 0% 50%;} }

        /* MARCA DE AGUA KINÉTICA */
        .bg-watermark { position: fixed; top: -50%; left: -50%; width: 200%; height: 200%; z-index: -1; pointer-events: none; display: flex; flex-direction: column; justify-content: center; transform: rotate(-45deg); opacity: 0.03; overflow: hidden; }
        body.light-mode .bg-watermark { opacity: 0.04; }
        .marquee-line { font-size: 6rem; font-weight: 900; white-space: nowrap; color: #fff; margin-bottom: 1rem; animation: scrollWatermark 50s linear infinite; letter-spacing: 5px; }
        body.light-mode .marquee-line { color: #000; }
        .marquee-line:nth-child(even) { animation-direction: reverse; animation-duration: 60s; }
        @keyframes scrollWatermark { 0% { transform: translateX(0); } 100% { transform: translateX(-30%); } }

        /* NAVBAR & CARRUSEL */
        .store-nav { position: fixed; width: 100%; top: 0; z-index: 1050; background: var(--bg-nav); backdrop-filter: blur(15px); padding: 15px 20px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-card); box-shadow: 0 4px 20px rgba(0,0,0,0.15); transition: background 0.4s ease;}
        .store-nav .logo-area img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; margin-right: 10px; }
        .store-nav .brand-name { font-weight: 800; font-size: 1.2rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-main); }
        .theme-toggle { background: none; border: none; font-size: 1.5rem; color: var(--text-main); cursor: pointer; transition: 0.3s; margin-left: 15px; }
        .theme-toggle:hover { color: var(--primary); transform: scale(1.1); }
        
        .carousel-item { height: 70vh; min-height: 500px; position: relative; }
        .carousel-bg { position: absolute; top:0; left:0; width:100%; height:100%; background-size: cover; background-position: center; }
        .carousel-overlay { position: absolute; top:0; left:0; width:100%; height:100%; background: linear-gradient(to top, var(--bg-body) 0%, rgba(0,0,0,0.4) 40%, rgba(0,0,0,0) 100%); transition: background 0.4s ease; }
        .carousel-caption { bottom: 20%; z-index: 10; padding-bottom: 0; }
        .carousel-caption h1 { font-size: 3.5rem; font-weight: 800; text-shadow: 2px 2px 15px rgba(0,0,0,0.9); margin-bottom: 10px; color: #fff; }
        .carousel-caption p { font-size: 1.3rem; text-shadow: 1px 1px 10px rgba(0,0,0,0.9); color: #ddd; font-weight: 300; }
        
        .btn-carrusel { background: var(--primary); border:none; padding: 12px 40px; font-weight: 700; border-radius: 30px; transition: transform 0.3s, box-shadow 0.3s; font-size: 1.1rem; color: #fff; position: relative; overflow: hidden; display: inline-block; z-index: 1;}
        .btn-carrusel::after { content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%; background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.3) 50%, rgba(255,255,255,0) 100%); transform: skewX(-25deg); animation: shine 4s infinite; z-index: -1; }
        .btn-carrusel:hover { transform: scale(1.05); color: white; box-shadow: 0 5px 20px var(--primary); }
        
        .filters { text-align: center; margin: 40px auto 30px; position: relative; z-index: 20; }
        .filter-btn { background: var(--bg-card); color: var(--text-main); border: 1px solid var(--border-card); padding: 8px 25px; border-radius: 30px; font-weight: 600; cursor: pointer; margin: 0 5px; transition: 0.3s; backdrop-filter: blur(5px); }
        .filter-btn:hover, .filter-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 15px rgba(229, 9, 20, 0.4);}

        /* TARJETAS COMUNES */
        .product-card { 
            background: var(--bg-card); backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
            border: 1px solid var(--border-card); border-radius: 18px; overflow: hidden; 
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); 
            position: relative; display: flex; flex-direction: column; height: 100%; 
        }
        .product-card:hover { transform: translateY(-12px) scale(1.02); border-color: var(--neon-color, var(--primary)); box-shadow: 0 15px 35px var(--neon-color, rgba(229, 9, 20, 0.4)); z-index: 2; }
        .ribbon { position: absolute; top: 15px; right: -35px; background: #ffd700; color: #000; padding: 5px 40px; font-size: 0.8rem; font-weight: 800; text-transform: uppercase; transform: rotate(45deg); z-index: 10; box-shadow: 0 2px 10px rgba(0,0,0,0.5); }
        
        /* CABECERAS VIVAS ANIMADAS (PANEO Y COLLAGE) */
        .card-img-color { height: 170px; display: flex; align-items: center; justify-content: center; position: relative; transition: 0.3s; background-size: cover; background-position: center; border-bottom: 1px solid var(--border-card); }
        .overlay-card { position: absolute; width: 100%; height: 100%; background: linear-gradient(to bottom, rgba(0,0,0,0.1), rgba(0,0,0,0.5)); top:0; left:0; z-index:1; }
        
        .card-header-animated {
            position: relative; background-size: 150% !important; 
            animation: panBackgroundImage 12s ease-in-out infinite alternate !important;
            overflow: hidden; border-radius: 18px 18px 0 0; border-bottom: 1px solid var(--border-card);
            height: 170px; display: flex; align-items: center; justify-content: center;
        }
        .card-header-animated::after {
            content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%;
            background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.15) 50%, rgba(255,255,255,0) 100%);
            transform: skewX(-25deg); animation: shine 6s infinite; pointer-events: none; z-index: 5;
        }
        @keyframes panBackgroundImage { 0% { background-position: left center; } 100% { background-position: right center; } }
        @keyframes shine { 0% { left: -100%; } 20% { left: 200%; } 100% { left: 200%; } }

        /* DISEÑO DE LOGOS GIGANTES PARA COMBOS Y OFERTAS */
        .combo-logos-container { display: flex; justify-content: center; align-items: center; z-index: 2; position: relative; }
        .combo-logo-item { 
            width: 85px; /* Tamaño más grande para ofertas */
            height: 85px; 
            border-radius: 50%; object-fit: contain; background: #fff; padding: 7px; 
            box-shadow: 0 8px 25px rgba(0,0,0,0.6); 
            border: 3px solid rgba(255,255,255,0.8); /* Borde blanco premium */
            transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); position: relative; 
        }
        .combo-logo-item:hover { transform: scale(1.15) translateY(-5px); z-index: 10 !important; border-color: var(--neon-color); }

        .card-body { padding: 25px 20px; flex-grow: 1; display: flex; flex-direction: column; }
        .card-title { font-size: 1.3rem; font-weight: 800; color: var(--text-main); margin-bottom: 15px; text-align: center; letter-spacing: 0.5px;}
        .pricing-box { text-align: center; background: rgba(0,0,0,0.15); padding: 15px; border-radius: 12px; margin-bottom: 20px; border: 1px solid rgba(255,255,255,0.05); position: relative;}
        body.light-mode .pricing-box { background: rgba(0,0,0,0.03); border: 1px solid rgba(0,0,0,0.05); }
        .price-normal { font-size: 0.95rem; color: var(--text-muted); text-decoration: line-through; margin-bottom: 5px; }
        .price-promo { font-size: 2.2rem; font-weight: 800; color: var(--primary); line-height: 1; text-shadow: 0 2px 4px rgba(0,0,0,0.2); }
        .price-promo span { font-size: 1rem; color: var(--text-muted); font-weight: 600; }
        
        .fomo-box { background: linear-gradient(45deg, #e50914, #b80710); color: white; border-radius: 8px; padding: 10px; margin-top: 15px; box-shadow: 0 4px 15px rgba(229, 9, 20, 0.4); border: 1px solid rgba(255,255,255,0.2); }
        .fomo-title { font-size: 0.75rem; text-transform: uppercase; font-weight: 700; letter-spacing: 1px; margin-bottom: 3px; }
        .fomo-timer { font-family: 'Courier New', Courier, monospace; font-size: 1.5rem; font-weight: 800; text-shadow: 0 2px 4px rgba(0,0,0,0.5); letter-spacing: 2px; }
        
        .features { list-style: none; padding: 0; margin: 0 0 25px; font-size: 0.95rem; color: var(--text-muted); }
        .features li { margin-bottom: 10px; display: flex; align-items: flex-start; }
        .features i { color: #00e676; margin-right: 10px; margin-top: 4px; font-size: 0.9rem; filter: drop-shadow(0 0 5px rgba(0, 230, 118, 0.4));}
        
        .btn-buy { position: relative; overflow: hidden; display: block; width: 100%; padding: 12px; background: var(--primary); color: white; text-decoration: none; text-align: center; font-weight: 700; border-radius: 8px; text-transform: uppercase; transition: 0.3s; z-index: 1; border: none;}
        .btn-buy::after { content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%; background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.3) 50%, rgba(255,255,255,0) 100%); transform: skewX(-25deg); animation: shine 4s infinite; z-index: -1; }
        .btn-buy:hover { background: #333; color: white; transform: scale(1.02); box-shadow: 0 5px 15px var(--primary); }
        
        .btn-buy-outline { position: relative; overflow: hidden; display: block; width: 100%; padding: 10px; background: transparent; color: var(--primary); border: 2px solid var(--primary); font-weight: 700; border-radius: 20px; transition: 0.3s; text-decoration: none; text-transform: uppercase;}
        .btn-buy-outline:hover { background: var(--primary); color: #fff; transform: scale(1.03); box-shadow: 0 5px 15px var(--primary); }
        
        .sold-out-card { filter: grayscale(100%); opacity: 0.6; pointer-events: none; }
        .pulse-danger { animation: pulse-red 2s infinite; border-color: #e50914 !important; }
        @keyframes pulse-red { 0% { box-shadow: 0 0 0 0 rgba(229, 9, 20, 0.7); } 70% { box-shadow: 0 0 0 12px rgba(229, 9, 20, 0); } 100% { box-shadow: 0 0 0 0 rgba(229, 9, 20, 0); } }
        .tag-low-stock { position: absolute; top: 15px; left: -10px; background: var(--primary); color: #fff; padding: 6px 15px; font-size: 0.8rem; font-weight: 800; text-transform: uppercase; z-index: 10; border-radius: 0 5px 5px 0; box-shadow: 3px 3px 10px rgba(0,0,0,0.5); }
        
        .float-wsp { position: fixed; bottom: 25px; right: 25px; background: #25d366; color: white; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 30px; box-shadow: 0 5px 20px rgba(37, 211, 102, 0.6); text-decoration: none; z-index: 100; transition: 0.3s; border: 2px solid rgba(255,255,255,0.2);}
        .float-wsp:hover { transform: scale(1.15) rotate(-10deg); color: white; }
        .section-divider { width: 80%; margin: 60px auto 40px; height: 1px; background: linear-gradient(to right, rgba(255,255,255,0), var(--border-card), rgba(255,255,255,0)); }

        /* ==================================================
   LOGIN NAVBAR (CAJAS INTELIGENTES)
================================================== */
.nav-input {
    background-color: var(--bg-body) !important;
    border: 1px solid var(--border-card) !important;
    color: var(--text-main) !important;
    width: 140px;
    height: 35px;
    border-radius: 6px;
    transition: 0.3s;
}
.nav-input:focus {
    background-color: var(--bg-card) !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 8px rgba(78, 115, 223, 0.4) !important;
    outline: none;
}
.nav-input::placeholder {
    color: var(--text-muted);
    opacity: 0.8;
}
.btn-ingresar {
    background-color: #00c853; 
    border-radius: 6px; 
    height: 35px; 
    padding: 0 18px; 
    transition: 0.3s;
    border: none;
}
.btn-ingresar:hover {
    background-color: #00e676;
    transform: scale(1.05);
}