@import url("https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,500;1,900&display=swap");
* {
    font-family: "Poppins", cursive;
}
body {
    color: azure;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: black;
}
.greetings {
    font-size: 6rem;
    font-weight: 900;
}
.greetings > span {
    animation: glow 2.5s ease-in-out infinite;
}
@keyframes glow {
    0%,
    100% {
        color: #fff;
        text-shadow: 0 0 12px #39c6d6, 0 0 50px #39c6d6, 0 0 100px #39c6d6;
    }
    10%,
    90% {
        color: #111;
        text-shadow: none;
    }
}
.greetings > span:nth-child(2) {
    animation-delay: 0.2s;
}
.greetings > span:nth-child(3) {
    animation-delay: 0.4s;
}
.greetings > span:nth-child(4) {
    animation-delay: 0.6s;
}
.greetings > span:nth-child(5) {
    animation-delay: 0.8s;
}
.greetings > span:nth-child(6) {
    animation-delay: 1s;
}
.greetings > span:nth-child(7) {
    animation-delay: 1.2s;
}
.greetings > span:nth-child(8) {
    animation-delay: 1.4s;
}

.description {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.button a {
    text-decoration: none;
    font-size: 1rem;
    color: #111;
}

@media screen and (max-width: 574px) {
    .greetings {
        display: block;
        font-size: 3rem;
        font-weight: 500;
        text-align: center;
    }
    .description {
        font-size: 1rem;
    }
}

button {
    text-decoration: none;
    position: relative;
    border: none;
    font-size: 14px;
    font-family: inherit;
    color: #fff;
    width: 9em;
    height: 3em;
    line-height: 2em;
    text-align: center;
    background: linear-gradient(90deg, #03a9f4, #f441a5, #ffeb3b, #03a9f4);
    background-size: 300%;
    border-radius: 30px;
    z-index: 1;
}

button:hover {
    animation: ani 8s linear infinite;
    border: none;
}

@keyframes ani {
    0% {
        background-position: 0%;
    }

    100% {
        background-position: 400%;
    }
}

button:before {
    content: "";
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    z-index: -1;
    background: linear-gradient(90deg, #03a9f4, #f441a5, #ffeb3b, #03a9f4);
    background-size: 400%;
    border-radius: 35px;
    transition: 1s;
}

button:hover::before {
    filter: blur(20px);
}

button:active {
    background: linear-gradient(32deg, #03a9f4, #f441a5, #ffeb3b, #03a9f4);
}