body {
    display: grid;
    place-items: center;
    height: 100vh;
    margin: 0;
    background-color: #1a1a1a;
    font-family: 'Poppins', sans-serif;
}

.glowing-btn {
    position: relative;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 20px;
    background: transparent;
    color: #ffffff;
    font-size: 1.5rem;
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    outline: none;
    overflow: hidden;
    z-index: 1;
}

a {
    color: inherit;
    text-decoration: none;
}

.glowing-btn::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: calc(100% - 4px);
    height: calc(100% - 4px);
    background: #272727;
    border-radius: inherit;
    z-index: -1;
    transition: background 0.4s ease-in-out;
}

.glowing-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300%;
    height: 300%;
    z-index: -2;
    background: conic-gradient(#00aaff,
            #ff00ea,
            #ff8d00,
            #00aaff);
    transform-origin: center center;
    animation: rotateGlow 4s linear infinite;
    filter: blur(12px);
    opacity: 0.8;
    transition: filter 0.3s ease, opacity 0.3s ease;
}

.glowing-btn:hover::after {
    background: linear-gradient(90deg, #0077ff, #ff00c3);
}

.glowing-btn:hover::before {
    filter: blur(24px);
    opacity: 1;
}

@keyframes rotateGlow {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}