.infografia {
            max-width: 800px;
            margin: 0 auto;
            padding: 40px 20px;
            background-color: var(--carta-bg);
            border: 1px solid var(--borde);
            border-left: 4px solid var(--azul-claro);
            margin-bottom: 100px;
        }
        .info-titulo {
            font-size: 32px;
            color: var(--azul-claro);
            margin-bottom: 20px;
            font-family: 'JetBrains Mono', monospace;
        }
        .info-texto {
            color: var(--texto-main);
            font-size: 18px;
            margin-bottom: 20px;
            text-align: justify;
        }
     
        .portal-monitor {
            position: relative;
            width: 100%;
            max-width: 600px;
            margin: 40px auto;
            background-color: #050505;
            border: 2px solid var(--texto-dim);
            border-radius: 8px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.8), inset 0 0 10px rgba(255, 255, 255, 0.1);
            overflow: hidden;
        }

      
        .portal-video {
            width: 100%;
            display: block;
            opacity: 0.85; 
           
            filter: brightness(1.5) contrast(1.1) grayscale(10%);
        }


        .portal-monitor::after {
            content: " ";
            display: block;
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            right: 0;
            background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
            background-size: 100% 4px;
            z-index: 2;
            pointer-events: none; 
        }

  
        .portal-caption {
            background-color: var(--texto-dim);
            color: var(--azul-oscuro);
            font-family: 'JetBrains Mono', monospace;
            font-size: 12px;
            font-weight: bold;
            padding: 5px 15px;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            justify-content: space-between;
        }
        .formula-box {
            background-color: rgba(0, 212, 255, 0.05);
            border: 1px dashed var(--azul-claro);
            padding: 20px;
            text-align: center;
            margin: 30px 0;
            font-size: 24px;
        }
        .btn-volver {
            display: inline-block;
            margin-top: 50px;
            margin-left: 30px;
            padding: 10px 20px;
            border: 1px solid var(--texto-dim);
            color: var(--texto-dim);
            text-decoration: none;
            transition: all 0.3s ease;
            font-family: 'JetBrains Mono', monospace;
        }
        .btn-volver:hover {
            border-color: var(--texto-main);
            color: var(--texto-main);
            background-color: rgba(255, 255, 255, 0.05);
        }