@media screen and (max-width: 640px) {
    .col {
        width: 90%;
    }
}

@media screen and (min-width: 640px) {
    .col {
        width: 500px;
    }
}

#howToAR {
    width: 100dvw;
    height: 100dvh;
    overflow: hidden;
    background-color: rgba(0,0,0,0.75);
    position: absolute;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.howToText {
    width: 320px;
}

.close {
    margin-top: 75px;
    position: absolute;
    width: 20px;
    height: 20px;
    left: calc(50% - 10px);
    background-image: url(./img/close.svg);
}

#fixParticlePos {
    position: absolute;
    width: 75px;
    height: 75px;
    border-radius: 50%;
    bottom: 50px;
    right: 30px;
    z-index: 9999;
    background-image: url(./img/icon.svg);
    background-size: cover;
    border: 1px solid white;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(5px);
}

#fixParticlePos:after {
    content: "";
    background: #ffffff;
    display: block;
    position: absolute;
    width: 75px;
    height: 75px;
    border-radius: 50%;
    opacity: 0;
    transition: all 0.8s
}

#fixParticlePos:active:after {
    padding: 0;
    margin: 0;
    opacity: 0.75;
    transition: 0s
}

body {
    margin: 0;
    overflow: hidden;
    background-color: black;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100dvw;
    height: 100dvh;
}

.kor {
    color: white;
    font-family: "Noto Sans KR", sans-serif;
    font-weight: 600;
    text-align: center;
    word-break: keep-all;
}

.eng {
    color: white;
    font-family: "Libre Franklin", sans-serif;
    text-align: center;
}

.h1_kor {
    font-size: 36px;
    font-weight: 600;
}

.h1_eng {
    font-size: 28px;
    font-weight: 600;
}

.h2_kor {
    font-size: 18px;
    margin-bottom: 7px;
    font-weight: 500;
}

.h2_eng {
    font-size: 17px;
    font-weight: 500;
    line-height: 1.4;
}

.h3_kor {
    font-size: 15px;
    margin-bottom: 7px;
    font-weight: 400;
    line-height: 1.5;
}

.h3_eng {
    font-size: 15px;
    font-weight: 400;
    line-height: 1.4;
}

.h4_kor {
    font-size: 13px;
    font-weight: 400;
    margin-top: 12px;
}

.h4_eng {
    font-size: 13px;
    font-weight: 300;
    margin-top: 12px;
    line-height: 1.4;
}

.cap_kor {
    font-size: 12px;
    text-align: left;
    width: 105px;
}

.cap_eng {
    font-size: 12px;
    text-align: left;
    width: 105px;
}

#translate {
    position: absolute;
    color: white;
    font-size: 15px;
    top: 23px;
    right: 20px;
    width: 32px;
    height: 32px;
    border: 1px white solid;
    text-align: center;
    border-radius: 50%;
    line-height: 0.66;
    font-weight: 300;
}

.title_text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    /* mix-blend-mode: difference; */
    display: flex;
    flex-direction: column;
    align-items: center;
}

.preventTouch {
    pointer-events: none;
}

.row {
    width: 300px;
    margin-bottom: 30px;
}

#forButton{
    margin-top: 5px;
    margin-bottom:30px;
    pointer-events: auto;
}

.blur {
    position: absolute;
    z-index: -1;
    width: 150px;
    height: 60px;
    background-color: #d000ff;
    border-radius: 30px;
    filter: blur(50px);
}

.col {
    display: flex;
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    justify-content: space-between;
}

.col_width {
    width: 50%;
}

#background {
    width: 100dvw;
    height: 100dvh;
    margin: 0;
    overflow: hidden;
    background-image: url(./img/night.jpg);
    background-size: cover;
    opacity: 0.0;
}

span {
     font-size: small;
}

@keyframes fade_in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fade_out {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}