:root {
    --glow-color: hsl(122, 91%, 51%);
}

.glowing-btn {
    border-radius: 10px;
    position: relative;
    color: #000;
    cursor: pointer;
    padding: 0.35em 1em;
    border: 0.15em solid var(--glow-color);
    border-radius: 0.45em;
    background: none;
    perspective: 2em;
    font-family: "Raleway", sans-serif;
    -webkit-box-shadow: inset 0px 0px 0.5em 0px var(--glow-color), 0px 0px 0.5em 0px var(--glow-color);
    -moz-box-shadow: inset 0px 0px 0.5em 0px var(--glow-color), 0px 0px 0.5em 0px var(--glow-color);
    box-shadow: inset 0px 0px 0.5em 0px var(--glow-color), 0px 0px 0.5em 0px var(--glow-color);
    animation: border-flicker 2s linear infinite;
}

.glowing-btn::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    transform: translateY(120%) rotateX(95deg) scale(1, 0.35);
    background: var(--glow-color);
    pointer-events: none;
    border-radius: 10px;
    filter: blur(1.5em);
    opacity: 1;
}

.glowing-btn::after {
    content: "";
    border-radius: 10px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* opacity: 0; */
    z-index: -1;
    background-color: var(--glow-color);
    box-shadow: 0 0 2em 0.2em var(--glow-color);
    transition: opacity 100ms linear;
    opacity: 1
}


/* .glowing-btn {
    color: rgba(0, 0, 0, 0.8);
    text-shadow: none;
    animation: none;
} */

@keyframes faulty-flicker {
    0% {
        opacity: 0.1;
    }
    2% {
        opacity: 0.1;
    }
    4% {
        opacity: 0.5;
    }
    19% {
        opacity: 0.5;
    }
    21% {
        opacity: 0.1;
    }
    23% {
        opacity: 1;
    }
    80% {
        opacity: 0.5;
    }
    83% {
        opacity: 0.4;
    }
    87% {
        opacity: 1;
    }
}

@keyframes text-flicker {
    0% {
        opacity: 0.1;
    }
    2% {
        opacity: 1;
    }
    8% {
        opacity: 0.1;
    }
    9% {
        opacity: 1;
    }
    12% {
        opacity: 0.1;
    }
    20% {
        opacity: 1;
    }
    25% {
        opacity: 0.3;
    }
    30% {
        opacity: 1;
    }
    70% {
        opacity: 0.7;
    }
    72% {
        opacity: 0.2;
    }
    77% {
        opacity: 0.9;
    }
    100% {
        opacity: 0.9;
    }
}

@keyframes border-flicker {
    0% {
        opacity: 0.1;
    }
    2% {
        opacity: 1;
    }
    4% {
        opacity: 0.1;
    }
    8% {
        opacity: 1;
    }
    70% {
        opacity: 0.7;
    }
    100% {
        opacity: 1;
    }
}