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

body {
    background-color: #151320;
}

.btn.rainbow-button {
    position: absolute;
    top: 20px;
    right: -1400px;
    height: 70px;
    width: 210px;
    font-size: 2px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: #ffffff;
    font-family: 'Poppins', sans-serif;
    background-color: #1c1b29;
    border-radius: 5px;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 20px 35px rgba(0, 0, 0, 0.3);
}

.btn.rainbow-button:before {
    content: "";
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: conic-gradient(
        #fd004c,
        #fe9000,
        #fff020,
        #3edf4b,
        #3363ff,
        #b102b7,
        #fd004c
    );
    border-radius: 9px; /* Ensure the border remains rounded */
    animation: spin 1.5s infinite linear;
    z-index: -1;
}

@keyframes spin {
    100% {
        transform: rotate(-360deg);
    }
}