#button {
    width: 200px;
    height: 50px;
    border: 2px solid gray;
    transition: .3s;
    -webkit-transition: .3s;
    cursor: pointer;
    clip-path: var(--ui-notch-path);
    font-size: 1rem;
    font-family: 'Roboto', sans-serif;
}

#button a {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Roboto', sans-serif;
    text-decoration: none;
}

#button a {
    color: #fff;
}

#button:hover {
    border: 2px solid #fff;
    background-color: rgba(0, 0, 0, .8);
}

.cybr-btn {
    --primary: hsl(var(--primary-hue), 85%, calc(var(--primary-lightness, 50) * 1%));
    --shadow-primary: hsl(var(--shadow-primary-hue), 90%, 50%);
    --primary-hue: 0;
    --primary-lightness: 50;
    --color: hsl(0, 0%, 100%);
    --font-size: 35px;
    --shadow-primary-hue: 180;
    --label-size: 9px;
    --shadow-secondary-hue: 60;
    --shadow-secondary: hsl(var(--shadow-secondary-hue), 90%, 60%);
    --clip: polygon(0 0, 100% 0, 100% 100%, 95% 100%, 95% 90%, 85% 90%, 85% 100%, 8% 100%, 0 70%);
    --border: 4px;
    --shimmy-distance: 5;
    --clip-one: polygon(0 2%, 100% 2%, 100% 95%, 95% 95%, 95% 90%, 85% 90%, 85% 95%, 8% 95%, 0 70%);
    --clip-two: polygon(0 78%, 100% 78%, 100% 100%, 95% 100%, 95% 90%, 85% 90%, 85% 100%, 8% 100%, 0 78%);
    --clip-three: polygon(0 44%, 100% 44%, 100% 54%, 95% 54%, 95% 54%, 85% 54%, 85% 54%, 8% 54%, 0 54%);
    --clip-four: polygon(0 0, 100% 0, 100% 0, 95% 0, 95% 0, 85% 0, 85% 0, 8% 0, 0 0);
    --clip-five: polygon(0 0, 100% 0, 100% 0, 95% 0, 95% 0, 85% 0, 85% 0, 8% 0, 0 0);
    --clip-six: polygon(0 40%, 100% 40%, 100% 85%, 95% 85%, 95% 85%, 85% 85%, 85% 85%, 8% 85%, 0 70%);
    --clip-seven: polygon(0 63%, 100% 63%, 100% 80%, 95% 80%, 95% 80%, 85% 80%, 85% 80%, 8% 80%, 0 70%);
    color: var(--color);
    cursor: pointer;
    background: transparent;
    text-transform: uppercase;
    font-size: var(--font-size);
    outline: transparent;
    letter-spacing: 2px;
    position: relative;
    font-weight: 500;
    border: 0;
    min-width: 230px;
    height: 60px;
    line-height: 75px;
    transition: background 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cybr-btn:hover {
    --primary: hsl(var(--primary-hue), 85%, calc(var(--primary-lightness, 50) * 0.8%));
}

.cybr-btn:active {
    --primary: hsl(var(--primary-hue), 85%, calc(var(--primary-lightness, 50) * 0.6%));
}

.cybr-btn:after,
.cybr-btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    clip-path: var(--clip);
    z-index: -1;
}

.cybr-btn:before {
    background: var(--shadow-primary);
    transform: translate(var(--border), 0);
}

.cybr-btn:after {
    background: var(--primary);
}

.cybr-btn__tag {
    position: absolute;
    padding: 1px 4px;
    letter-spacing: 1px;
    line-height: 1;
    bottom: -5%;
    right: 5%;
    font-weight: normal;
    color: hsl(0, 0%, 0%);
    font-size: var(--label-size);
}

.cybr-btn__glitch {
    position: absolute;
    top: calc(var(--border) * -1);
    left: calc(var(--border) * -1);
    right: calc(var(--border) * -1);
    bottom: calc(var(--border) * -1);
    background: var(--shadow-primary);
    text-shadow: 2px 2px var(--shadow-primary), -2px -2px var(--shadow-secondary);
    clip-path: var(--clip);
    animation: glitch 2s infinite;
    display: none;
}

.cybr-btn:hover .cybr-btn__glitch {
    display: block;
}

.cybr-btn__glitch:before {
    content: '';
    position: absolute;
    top: calc(var(--border) * 1);
    right: calc(var(--border) * 1);
    bottom: calc(var(--border) * 1);
    left: calc(var(--border) * 1);
    clip-path: var(--clip);
    background: var(--primary);
    z-index: -1;
}

@keyframes glitch {
    0% {
        clip-path: var(--clip-one);
    }
    2%,
    8% {
        clip-path: var(--clip-two);
        transform: translate(calc(var(--shimmy-distance) * -1%), 0);
    }
    6% {
        clip-path: var(--clip-two);
        transform: translate(calc(var(--shimmy-distance) * 1%), 0);
    }
    9% {
        clip-path: var(--clip-two);
        transform: translate(0, 0);
    }
    10% {
        clip-path: var(--clip-three);
        transform: translate(calc(var(--shimmy-distance) * 1%), 0);
    }
    13% {
        clip-path: var(--clip-three);
        transform: translate(0, 0);
    }
    14%,
    21% {
        clip-path: var(--clip-four);
        transform: translate(calc(var(--shimmy-distance) * 1%), 0);
    }
    25% {
        clip-path: var(--clip-five);
        transform: translate(calc(var(--shimmy-distance) * 1%), 0);
    }
    30% {
        clip-path: var(--clip-five);
        transform: translate(calc(var(--shimmy-distance) * -1%), 0);
    }
    35%,
    45% {
        clip-path: var(--clip-six);
        transform: translate(calc(var(--shimmy-distance) * -1%));
    }
    40% {
        clip-path: var(--clip-six);
        transform: translate(calc(var(--shimmy-distance) * 1%));
    }
    50% {
        clip-path: var(--clip-six);
        transform: translate(0, 0);
    }
    55% {
        clip-path: var(--clip-seven);
        transform: translate(calc(var(--shimmy-distance) * 1%), 0);
    }
    60% {
        clip-path: var(--clip-seven);
        transform: translate(0, 0);
    }
    31%,
    61%,
    100% {
        clip-path: var(--clip-four);
    }
}

.cybr-btn:nth-of-type(2) {
    --primary-hue: 260;
}


/* BACK TO TOP BUTTON */

#back-to-top-button {
    text-decoration: none;
    display: inline-block;
    background: #515151;
    width: 45px;
    height: 45px;
    text-align: center;
    border-radius: 5px;
    position: fixed;
    bottom: 30px;
    right: 30px;
    transition: background-color .3s, opacity .5s, visibility .5s;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

#back-to-top-button::after {
    font-family: FontAwesome;
    font-weight: normal;
    font-style: normal;
    font-size: 2em;
    line-height: 50px;
    color: #fff;
}

#back-to-top-button:hover {
    cursor: pointer;
    background-color: #b62347;
}

#back-to-top-button:active {
    background-color: #555;
}

#back-to-top-button.show {
    opacity: 1;
    visibility: visible;
}