body {
    margin: 0;
    background: #000;
    overflow: hidden;
}

#globe {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
}

.centered-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    color: #fff;
    text-align: center;
    z-index: 2;
}

    .centered-content img {
        max-height: 150px;
        margin: 15px 0;
    }

    .centered-content h1 {
        font-size: 2.2rem;
        margin-bottom: 10px;
        text-shadow: 0 0 5px #004080, 0 0 10px #004080, 0 0 20px #00264d, 0 0 40px #001a33;
        animation: neonPulse 2.5s ease-in-out infinite;
    }
@keyframes neonPulse {
    0%, 100% {
        text-shadow: 0 0 5px #004080, 0 0 10px #004080, 0 0 20px #00264d, 0 0 40px #001a33;
    }

    50% {
        text-shadow: 0 0 10px #0066cc, 0 0 20px #0066cc, 0 0 40px #004080, 0 0 80px #00264d;
    }
}
.centered-content h2 {
    font-size: 1.8rem;
    color: #f0f0f0;
    text-align: center;
    margin-top: 0.5rem;
    font-weight: 600;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4), 0 0 5px rgba(255, 255, 255, 0.6);
    position: relative;
    overflow: hidden;
}
    .centered-content h2::after {
        content: '';
        position: absolute;
        top: 0;
        left: -75%;
        width: 50%;
        height: 100%;
        background: linear-gradient( 120deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.4) 50%, rgba(255, 255, 255, 0) 100% );
        transform: skewX(-20deg);
        animation: shine 3s infinite;
    }
@keyframes shine {
    0% {
        left: -75%;
    }

    100% {
        left: 125%;
    }
}
.logo-duo {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    z-index: 20;
    font-family: 'Raleway', sans-serif;
}

.logo-part {
    padding: 0.6rem 1.5rem;
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
    background-color: #007bff;
    border-radius: 10px;
    box-shadow: 0 0 12px rgba(0, 123, 255, 0.5);
    transition: all 0.4s ease-in-out;
}

    .logo-part.left {
        border-top-right-radius: 0;
        border-bottom-right-radius: 0;
        margin-right: 2px;
    }

    .logo-part.right {
        background-color: #0056b3; /* tono diferente para contraste */
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
    }

.btn-login {
    display: inline-block;
    margin: 1.5rem auto 0;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 2rem;
    background: linear-gradient(135deg, #004080, #00bcd4); /* color de fondo oscuro para contraste */
    color: #f0f0f0;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4), 0 0 5px rgba(255, 255, 255, 0.6);
    position: relative;
    overflow: hidden;
    transition: background 0.3s ease;
    cursor: pointer;
    box-shadow: 0 0 8px rgba(0, 188, 212, 0.5);
}

    /* Brillo en movimiento */
    .btn-login::after {
        content: '';
        position: absolute;
        top: 0;
        left: -75%;
        width: 50%;
        height: 100%;
        background: linear-gradient( 120deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.4) 50%, rgba(255, 255, 255, 0) 100% );
        transform: skewX(-20deg);
        animation: shine 3s infinite;

    }

    /* Efecto al pasar el mouse */
    .btn-login:hover {
        background: linear-gradient(135deg, #006699, #33d6e6);
        transform: scale(1.02);
        color: #e0e0e0;
        text-shadow: 0 0 3px rgba(224, 224, 224, 0.5), 0 0 6px rgba(255, 255, 255, 0.3);
    }

/* Animación compartida con h2 */
@keyframes shine {
    0% {
        left: -75%;
    }

    100% {
        left: 125%;
    }
}