.main-uvpt {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0d0d0d, #1a1a1a, #0d0d0d);
    background-size: 400% 400%;
    animation: bgShift 20s ease infinite;
}

@keyframes bgShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.45;
    filter: blur(80px);
    mix-blend-mode: screen;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
}

/* Colores animados */
@keyframes colorShift {
    0% {
        background: #ff6a00;
    }

    25% {
        background: #ee0979;
    }

    50% {
        background: #007adf;
    }

    75% {
        background: #00ecbc;
    }

    100% {
        background: #ff6a00;
    }
}

.circle1 {
    width: 280px;
    height: 280px;
    animation: move1 12s infinite, colorShift 10s linear infinite;
}

.circle2 {
    width: 360px;
    height: 360px;
    animation: move2 15s infinite, colorShift 12s linear infinite;
}

.circle3 {
    width: 240px;
    height: 240px;
    animation: move3 18s infinite, colorShift 14s linear infinite;
}

.circle4 {
    width: 320px;
    height: 320px;
    animation: move4 20s infinite, colorShift 16s linear infinite;
}

.circle5 {
    width: 260px;
    height: 260px;
    animation: move5 22s infinite, colorShift 18s linear infinite;
}

@keyframes move1 {
    0% {
        top: 10%;
        left: 10%;
    }

    25% {
        top: 20%;
        left: 70%;
    }

    50% {
        top: 70%;
        left: 60%;
    }

    75% {
        top: 60%;
        left: 20%;
    }

    100% {
        top: 10%;
        left: 10%;
    }
}

@keyframes move2 {
    0% {
        top: 60%;
        left: 10%;
    }

    25% {
        top: 10%;
        left: 50%;
    }

    50% {
        top: 40%;
        left: 80%;
    }

    75% {
        top: 80%;
        left: 40%;
    }

    100% {
        top: 60%;
        left: 10%;
    }
}

@keyframes move3 {
    0% {
        top: 30%;
        left: 80%;
    }

    25% {
        top: 70%;
        left: 70%;
    }

    50% {
        top: 60%;
        left: 20%;
    }

    75% {
        top: 20%;
        left: 40%;
    }

    100% {
        top: 30%;
        left: 80%;
    }
}

@keyframes move4 {
    0% {
        top: 50%;
        left: 90%;
    }

    25% {
        top: 80%;
        left: 60%;
    }

    50% {
        top: 30%;
        left: 30%;
    }

    75% {
        top: 10%;
        left: 70%;
    }

    100% {
        top: 50%;
        left: 90%;
    }
}

@keyframes move5 {
    0% {
        top: 80%;
        left: 20%;
    }

    25% {
        top: 40%;
        left: 10%;
    }

    50% {
        top: 20%;
        left: 50%;
    }

    75% {
        top: 70%;
        left: 80%;
    }

    100% {
        top: 80%;
        left: 20%;
    }
}

.content {
    text-align: center;
    color: white;
    animation: fadeInUp 2s ease;
    z-index: 1;
    position: relative;
}

.content h1 {
    font-size: 4rem;
    margin: 0 0 1rem;
}

.content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    border-radius: 30px;
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
}

.btn:hover {
    background: white;
    color: #333;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#logo {
    font-family: "Kaushan Script", cursive;
    font-weight: 400;
    font-style: normal;
    font-size: 4rem;
    width: 95%;
    max-width: 500px;
    display: block;
    margin-bottom: 50px;
}

h2 {
    display: block;
}

body {
    font-family: "Zalando Sans Expanded", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
}

.navbar-brand {
    font-family: "Kaushan Script", cursive;
    font-weight: 400;
    font-style: normal;
    font-size: 2rem;
}

.grupoName {
    font-family: "Kaushan Script", cursive;
    font-weight: 400;
    font-style: normal;
    margin: 0 20px;
}

.contenido {
    display: block;
    padding-top: 100px;
    color: #FFF;
    text-align: center;
}

.form-label {
    border: dashed 2px red;
    display: block;
    text-align: left;
}