.demoBtn {
    width: 100%;
    max-width: 280px;
    top: 70px;
    position: absolute;
    text-align: center;
    font-size: 12px;
    font-weight: bold;
    padding: 1em;
    border-radius: 0.5em;
    background-color: rgba(230, 240, 255, 1);
    color: #0b3a91;
    filter: drop-shadow(0px 2px 0px rgba(11, 58, 145, 0.9)); 
    line-height: 1;
}

.demoBtn::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 0 10px 10px 10px;
    border-style: solid;
    border-color: transparent transparent rgba(230, 240, 255, 1) transparent;
    z-index: 1;
}

.demoBtn span {
    display: block;
    font-size: 16px;
    background: linear-gradient(270deg, #0b3a91, #2b7bd6, #0b3a91);
    background-size: 600% 600%;
    animation: bgMove 4s ease infinite;
    border-radius: 0.25em;
    color: #FFF;
    line-height: 1;
    padding: 0.5em;
    margin-bottom: 0.5em;
    letter-spacing: 0.1em;
}

@keyframes bgMove {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}


@keyframes shadowPulse {
    0% {
        filter: drop-shadow(0px 0px 4px rgba(11, 91, 206, 0.9)); 
    }

    50% {
        filter: drop-shadow(0px 0px 16px rgba(11, 91, 206, 0.8)); 
    }

    100% {
        filter: drop-shadow(0px 0px 4px rgba(11, 91, 206, 0.9)); 
    }
}

.demoHead {
    position: fixed;
    top: 50px;
    left: 0;
    z-index: 2000;
}

.demoHead {
    display: block;
    background: #4dd492;
    box-shadow: 0 0 12px 3px rgba(46, 204, 113, 0.3);
    background-size: 600% 600%;
    border-top-right-radius: 2em;
    border-bottom-right-radius: 2em;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    color: #FFF;
    line-height: 1;
    padding: 0.6em 1em;
    margin-bottom: 0.5em;
    white-space: nowrap;
    cursor: default;
    user-select: none;
    letter-spacing: 0.1em;
    font-size: 13px;
    font-weight: bold;
    border: 1px solid #FFF;
    border-left: none;

    transform: translateX(-120%);
    animation: slideInLeft 0.6s ease-out forwards;
}

@keyframes slideInLeft {
    from {
        transform: translateX(-120%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.demoBtn2 {

    position: fixed;
    z-index: 1001;
    top: calc(50% + 14em);
    left: 50%;
    transform: translate(-50%, -50%);

    width: 100%;
    max-width: 280px;
    text-align: center;
    font-size: 13px;
    font-weight: bold;
    padding: 1em;
    border-radius: 0.5em;
    background-color: rgba(230, 240, 255, 1);
    color: #0b3a91;
    filter: drop-shadow(0px 2px 0px rgba(11, 58, 145, 0.9)); 
    line-height: 1;
}


.demoBtn2::before {
    content: "";
    position: absolute;
    top: -9px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 0 10px 10px 10px;
    border-style: solid;
    border-color: transparent transparent rgba(230, 240, 255, 1) transparent;
    z-index: 1;
}


.demoBtn2 span {
    display: block;
    font-size: 16px;
    background: linear-gradient(270deg, #0b3a91, #2b7bd6, #0b3a91);
    background-size: 600% 600%;
    animation: bgMove 4s ease infinite;
    border-radius: 0.25em;
    color: #FFF;
    line-height: 1;
    padding: 0.5em;
    margin-bottom: 0.5em;
    letter-spacing: 0.1em;
}

.demoBtn3 {

    position: fixed;
    z-index: 1001;
    top: calc(50% + 11em);
    left: 50%;
    transform: translate(-50%, -50%);

    width: 100%;
    max-width: 280px;
    text-align: center;
    font-size: 13px;
    font-weight: bold;
    padding: 1em;
    border-radius: 0.5em;
    background-color: rgba(230, 240, 255, 1);
    color: #0b3a91;
    filter: drop-shadow(0px 2px 0px rgba(11, 58, 145, 0.9)); 
    line-height: 1;
}

.demoBtn3::before {
    content: "";
    position: absolute;
    top: -9px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 0 10px 10px 10px;
    border-style: solid;
    border-color: transparent transparent rgba(230, 240, 255, 1) transparent;
    z-index: 1;
}


.demoBtn3 span {
    display: block;
    font-size: 16px;
    background: linear-gradient(270deg, #0b3a91, #2b7bd6, #0b3a91);
    background-size: 600% 600%;
    animation: bgMove 4s ease infinite;
    border-radius: 0.25em;
    color: #FFF;
    line-height: 1;
    padding: 0.5em;
    margin-bottom: 0.5em;
    letter-spacing: 0.1em;
}

.demoBtn,
.demoBtn2,
.demoBtn3 {
    opacity: 0;
    transition: opacity 0.6s ease-out;
    animation: shadowPulse 2s ease-in-out infinite;
}

.demoBtn.show,
.demoBtn2.show,
.demoBtn3.show {
    opacity: 1;
}