* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

       

        :root {
             --background-blanco:#ffffff;
             --color-primary: #0a0a0a;
            --color-secondary: #1a1a1a;
            --color-accent: #ffd700;
            --color-accent-dark: #ffb700;
            --color-text: #ffffff;
            --color-text-muted: #a0a0a0;
             --color-text-Grey-500:#454545;
            --color-border: #2a2a2a;
            --gradient-primary: linear-gradient(135deg, #dbba00 0%, #d89b00 100%);
            --gradient-card: linear-gradient(145deg, #0a0a0a 0%, #1a1a1a 100%);
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.4);

            --shadow-hover: 0 20px 25px -5px rgba(14, 165, 233, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

          .textoBlancoTitle {
            color: var(--color-blanco-title);
          }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
            background-color: var(--color-primary);
            color: var(--color-text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }


        
        /* HERO SECTION */
        .hero {
            margin-top: 130px;
            min-height: 70vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 50%;
            height: 100%;
            background: linear-gradient(135deg, var(--color-secondary) 50%, transparent 100%);
            clip-path: polygon(0 0, 100% 0, 80% 100%, 0% 100%);
            z-index: 0;
        }

        .hero__wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero__subtitle {
            color: var(--color-accent);
            font-size: 1.3rem;
            text-transform: uppercase;
            letter-spacing: 3px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .hero__title {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 30px;
            letter-spacing: -2px;
        }

        .hero__title-accent {
            color: var(--color-accent);
        }

        .hero__description {
            font-size: 1.1rem;
            color: var(--color-text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero__brands {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
            margin-bottom: 40px;
            padding: 20px 0;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .hero__brand-badge {
            background: var(--color-secondary);
            padding: 8px 16px;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            border: 1px solid var(--color-border);
        }

        .hero__buttons {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero__button {
            padding: 18px 40px;
            font-size: 0.95rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            text-decoration: none;
            display: inline-block;
        }

        .hero__button--primary {
            background: var(--color-accent);
            color: #001a33;
            clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
        }

        .hero__button--primary:hover {
            background: var(--color-accent-dark);
            transform: translateY(-3px);
        }

        .hero__button--secondary {
            background: transparent;
            color: var(--color-text);
            border: 2px solid var(--color-accent);
            clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
        }

        .hero__button--secondary:hover {
            background: var(--color-accent);
            color: #ffffff;
        }

        .hero__image {
            width: 100%;
            border-radius: 8px;
           box-shadow: 0 20px 60px rgba(255, 215, 0, 0.3);
        }


      
      
         /* CONTENT SECTION */
        .content-section {
            background: var(--color-secondary);
            padding: 80px 0;
        }

        .content-wrapper {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .content-section h2 {
            color: var(--color-accent);
            font-size: clamp(1.8rem, 2vw, 3.5rem);
            font-weight: 900;
            margin-bottom: 30px;
            text-align: left;
        }

        .content-section h3 {
            color: var(--color-accent);
            font-size: 1.8rem;
            font-weight: 700;
            margin: 40px 0 20px 0;
            border-bottom: 2px solid var(--color-accent);
            padding-bottom: 10px;
        }

        .content-section h4 {
            color: var(--color-text);
            font-size: 1.4rem;
            font-weight: 600;
            margin: 30px 0 15px 0;
        }

        .content-section p {
            color: var(--color-text-muted);
            margin-bottom: 20px;
            line-height: 1.8;
            font-size: 1.1rem;
        }

        .content-section ul {
            margin: 20px 0;
            padding-left: 0;
            list-style: none;
        }

        .content-section ul li {
            color: var(--color-text-muted);
            margin-bottom: 12px;
            padding-left: 30px;
            position: relative;
            line-height: 1.7;
        }

        .content-section ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--color-accent);
            font-weight: bold;
            font-size: 1.2rem;
        }

        .content-section strong {
            color: var(--color-accent);
            font-weight: 700;
        }

        .content-highlight-box {
            background: var(--color-primary);
            border: 2px solid var(--color-accent);
            padding: 30px;
            border-radius: 8px;
            margin: 30px 0;
        }

        .content-comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            background: var(--color-primary);
            border-radius: 8px;
            overflow: hidden;
        }

        .content-comparison-table th {
            background: var(--color-accent);
            color: #ffffff;
            padding: 15px;
            text-align: left;
            font-weight: 700;
        }

        .content-comparison-table td {
            padding: 15px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text-muted);
        }

        .content-comparison-table tr:hover {
            background: rgba(14, 165, 233, 0.05);
        }



         /* BATTERY TYPES */
        .battery-types {
            background: var(--color-secondary);
        }

        .types__grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 1;
        }

        .type__card {
            background: var(--color-primary);
            padding: 40px;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .type__card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--color-accent);
            transition: var(--transition);
        }

        .type__card:hover::before {
            height: 100%;
        }

        .type__card:hover {
            transform: translateY(-5px);
            border-color: var(--color-accent);
        }

        .type__card h3 {
            color: var(--color-accent);
            font-size: 1.5rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .type__card p {
            color: var(--color-text-muted);
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .type__duration {
            background: var(--color-secondary);
            padding: 10px 20px;
            border-radius: 4px;
            display: inline-block;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 0.9rem;
        }


 

        /* SECCIÓN MARCAS - BEM METHODOLOGY */
        .marcas {
            padding: 70px 0 10px;
            background: var(--background-blanco);
            position: relative;
            overflow: hidden;
           
        }

        /* .marcas::before {
            content: 'MARCAS';
            position: absolute;
            top: 50px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 10rem;
            font-weight: 900;
            color: rgba(30, 41, 59, 0.03);
            white-space: nowrap;
            z-index: 0;
        } */

        /* ELEMENT: marcas__header */
        .marcas__header {
            text-align: center;
            margin-bottom: 80px;
            position: relative;
            z-index: 1;
        }

        .marcas__header::before {
            content: '';
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 4px;
            background: var(--gradient-primary);
            border-radius: 2px;
        }

        /* ELEMENT: marcas__subtitle */
        .marcas__subtitle {
            color: var(--color-accent);
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 3px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        /* ELEMENT: marcas__title */
        .marcas__title {
            font-size: clamp(2rem, 4vw, 3.5rem);
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        /* ELEMENT: marcas__description */
        .marcas__description {
            color: var(--color-text-Grey-500);
            margin: 0 auto;
            font-size: 1.1rem;
            line-height: 1.7;
            text-align:justify;
            
        }

        /* ELEMENT: marcas__container */
        .marcas__container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 1;
        }

        /* ELEMENT: marcas__card */
        .marcas__card {
            background: var(--gradient-card);
            
            padding: 0;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            position: relative;
            transition: var(--transition);
            cursor: pointer;
        }

        .marcas__card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: var(--transition);
            transform-origin: left;
        }

        /* MODIFIER: marcas__card--hovered */
        .marcas__card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 60px rgba(255, 215, 0, 0.3);
            border-color: var(--color-accent);
        }

        .marcas__card:hover::before {
            transform: scaleX(1);
        }

        /* ELEMENT: marcas__image-container */
        .marcas__image-container {
            height: 200px;
            background: var(--color-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
           
            position: relative;
            overflow: hidden;
        }

        .marcas__image-container::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 30%;
            background: linear-gradient(to top, rgba(241, 245, 249, 0.05), transparent);
            pointer-events: none;
        }

        /* ELEMENT: marcas__image */
        .marcas__image {
            max-width: 100%;
            
            object-fit: contain;
            transition: var(--transition);
            filter: contrast(1.1) brightness(1.05);
        }

        .marcas__card:hover .marcas__image {
            transform: scale(1.05);
            filter: contrast(1.2) brightness(1.1);
        }

        /* ELEMENT: marcas__content */
        .marcas__content {
            padding: 30px;
            text-align: center;
            position: relative;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        /* ELEMENT: marcas__badge */
        .marcas__badge {
            display: inline-block;
           
            color: white;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 15px;
           
        }

        /* ELEMENT: marcas__name */
        .marcas__name {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* ELEMENT: marcas__text */
        .marcas__text {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 20px;
            flex: 1;
        }

        /* ELEMENT: marcas__specs */
        .marcas__specs {
            display: flex;
            justify-content: space-around;
            margin-bottom: 25px;
            border-top: 1px solid var(--color-border);
            padding-top: 20px;
        }

        /* ELEMENT: marcas__spec-item */
        .marcas__spec-item {
            text-align: center;
        }

        /* ELEMENT: marcas__spec-label */
        .marcas__spec-label {
            font-size: 0.7rem;
            color: var(--color-text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 5px;
        }

        /* ELEMENT: marcas__spec-value */
        .marcas__spec-value {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
        }

        /* ELEMENT: marcas__button */
        .marcas__button {
            background: var(--color-accent);
            color: #ffffff;
            border: none;
            padding: 12px 30px;
            border-radius: 4px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.85rem;
            box-shadow: 0 20px 60px rgba(255, 215, 0, 0.3);
            width: 100%;
            clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
        }

        /* MODIFIER: marcas__button--hovered */
        .marcas__button:hover {
            background: var(--color-accent-dark);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 20px 60px rgba(255, 215, 0, 0.3);
        }

        /* ELEMENT: marcas__floating-elements */
        .marcas__floating-elements {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            overflow: hidden;
            z-index: 0;
        }

        /* ELEMENT: marcas__floating-circle */
        .marcas__floating-circle {
            position: absolute;
            border-radius: 50%;
            background: linear-gradient(45deg, rgba(14, 165, 233, 0.05), rgba(56, 189, 248, 0.05));
            animation: floatMarcas 8s ease-in-out infinite;
        }

        .marcas__floating-circle:nth-child(1) {
            width: 100px;
            height: 100px;
            top: 10%;
            left: 10%;
            animation-delay: 0s;
        }

        .marcas__floating-circle:nth-child(2) {
            width: 150px;
            height: 150px;
            top: 60%;
            right: 10%;
            animation-delay: 2s;
        }

        .marcas__floating-circle:nth-child(3) {
            width: 80px;
            height: 80px;
            bottom: 20%;
            left: 20%;
            animation-delay: 4s;
        }

        @keyframes floatMarcas {
            0%, 100% {
                transform: translateY(0px) rotate(0deg);
            }
            33% {
                transform: translateY(-15px) rotate(120deg);
            }
            66% {
                transform: translateY(-8px) rotate(240deg);
            }
        }

        .cta {
            padding: 120px 0;
            background: var(--color-secondary);
            position: relative;
            overflow: hidden;
        }

        .cta__content {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta__title {
            font-size: clamp(2rem, 5vw, 4rem);
            font-weight: 900;
            margin-bottom: 30px;
            line-height: 1.2;
        }

        .cta__description {
            font-size: 1.2rem;
            color: var(--color-text-muted);
            margin-bottom: 50px;
            line-height: 1.8;
        }

        .cta__button {
            background: var(--color-accent);
            color: #ffffff;
            padding: 22px 60px;
            border: none;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            clip-path: polygon(15px 0, 100% 0, calc(100% - 15px) 100%, 0 100%);
        }

        .cta__button:hover {
            background: var(--color-accent-dark);
            transform: translateY(-5px);
            box-shadow: 0 20px 60px rgba(255, 215, 0, 0.3);
        }



      
        /* Footer */   
        .footer {
            background: var(--color-primary);
            border-top: 1px solid var(--color-border);
            padding: 80px 0 30px;
            color: #fff;
        }

        .footer__content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 60px;
            margin-bottom: 60px;
            color: #fff;
        }

        .footer__logo {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 20px;
        }

        .footer__brand-description {
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 30px;
            color: #fff;
        }

        .footer__section-title {
            font-size: 1.1rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 25px;
        }

        .footer__list {
            list-style: none;
        }

        .footer__list-item {
            margin-bottom: 12px;
        }

        .footer__link {
            color: #fff;
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .footer__link:hover {
            color: var(--color-accent);
        }

        .footer__bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 30px;
            text-align: center;
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }
       

        .whatsapp-float {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 60px;
            height: 60px;
            background: #25d366;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: white;
            cursor: pointer;
            z-index: 999;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
            text-decoration: none;
        }

        .whatsapp-float:hover {
            transform: scale(1.1);
        }

          @media (max-width: 968px) {
            .header__top {
                display: none;
            }

            .header__cta {
                font-size: 0.75rem;
                padding: 10px 20px;
            }

            .hero {
                margin-top: 100px;
            }

            .hero__wrapper {
                grid-template-columns: 1fr;
            }

            .section::before {
                font-size: 5rem;
            }

            .benefit__header {
                flex-direction: column;
                text-align: center;
            }

            .calculator__box {
                padding: 30px;
            }
        }