:root {
    --pri-color: #9b0000;
    --white-color: #ffffff;
    --black-color: #222222;
    --bg-color: #f5f5f5;
    --transition-1s: 0.75s;
    --cube-size: 440px;
}

html {
    font-size: 62.5%;
    -ms-overflow-style: none;
    /* IE 및 Edge */
    scrollbar-width: none;
    /* Firefox */
}



body {
    font-size: 16px;
    color: #333;
    word-break: keep-all;
    height: auto;
    overflow-x: hidden;
    background: var(--bg-color);


}

body.gnb_on,
body.cover {
    overflow: hidden;
}

.inner {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 0;
    width: 100%;
    height: 100vh;
    height: 100svh;
}

.point {
    color: var(--pri-color);
}

/* 프로젝트섹션 시작 */
#project_sec {
    height: 600vh;
    height: 600svh;
    position: relative;
}

#project_sec .sticky_sec {
    position: sticky;
    top: 0;
    height: 100vh;
    height: 100svh;
    overflow: hidden;
}

#project_sec .sticky_sec>.itm {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    overflow: hidden;
    background: url(../images/itm_bg.png)no-repeat fixed center/cover;
}

#project_sec .itm .tit h2 {
    display: block;
    text-align: center;
    font-weight: 900;
    font-size: 56px;
    line-height: 56px;
    font-family: 'Unbounded';
    text-transform: uppercase;
    color: #222;
}

#project_sec .sticky_sec .itm_intro {
    z-index: -1;
}

#project_sec .sticky_sec .itm_pf01 {
    z-index: -2;
}

#project_sec .sticky_sec .itm_pf02 {
    z-index: -3;
}

#project_sec .sticky_sec .itm_pf03 {
    z-index: -4;
}

#project_sec .sticky_sec .itm_pf04 {
    z-index: -5;
}

#project_sec .sticky_sec .itm_pf05 {
    z-index: -6;
    height: 100% !important;
}

/* itm_pf */

#project_sec .itm_pf .inner {
    z-index: 9;
    position: absolute;
    top: 0;
    left: 0;
    max-width: unset;
}

#project_sec .itm_pf .tit h2 {
    color: var(--white-color);
}

#project_sec .itm_pf .inner .bg_video {
    z-index: 1;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#project_sec .itm_pf .inner .bg_video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#project_sec .itm_pf .video_box::before {
    z-index: 2;
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

#project_sec .itm_pf .tit {
    z-index: 9;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    display: flex;
    flex-direction: column;
    gap: 16px;

    width: 100%;
}

#project_sec .itm_pf .tit p {
    position: relative;
    text-align: center;
    font-size: 20px;
    line-height: 20px;
    font-weight: 200;
    font-family: 'Unbounded';
    text-transform: uppercase;
    color: var(--white-color);
}

#project_sec .itm_pf .tit .desc {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

#project_sec .itm_pf .tit .desc>li {
    position: relative;
    font-size: 16px;
    font-weight: 300;
    line-height: 16px;
    opacity: 0.8;
    color: var(--white-color);
}

#project_sec .itm_pf .tit .desc>li~li::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -15px;
    transform: translate(0, -50%);
    width: 1px;
    height: 14px;
    background: rgba(255, 255, 255, 0.2);
}

#project_sec .itm_pf .tit .link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#project_sec .itm_pf .tit .link>li>a {
    display: block;
    padding: 0 32px;

    font-size: 14px;
    line-height: 40px;
    font-weight: 100;
    text-transform: uppercase;
    font-family: 'Unbounded';
    white-space: nowrap;
    color: var(--white-color);

    backdrop-filter: blur(4px);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);

    transition: var(--transition-1s);
}



@media (min-width: 769px) {
    #project_sec .itm_pf .tit .link>li:hover>a {
        background: rgba(255, 255, 255, 0.3);
        transition: var(--transition-1s);
    }
}

@media(max-width: 1024px) {
    :root {
        --cube-size: 40vw;
    }
}

@media(max-width: 768px) {
    :root {
        --cube-size: 56vw;
    }

    #project_sec .itm .tit p {
        font-size: 16px;
        line-height: 16px;
    }

    #project_sec .itm .tit h2 {
        font-size: 40px;
        line-height: 40px;
    }

    #project_sec .sticky_sec>.itm {
        background: none;
    }
}

@media(max-width: 480px) {
    #project_sec .itm .tit h2 {
        font-size: 32px;
        line-height: 32px;
    }

    #project_sec .itm_pf .tit .desc {
        gap: 16px;
    }

    #project_sec .itm_pf .tit .desc>li~li::before {
        left: -8px;
        height: 10px;
    }

    #project_sec .itm_pf .tit .desc>li {
        font-size: 14px;
        line-height: 14px;
    }

    #project_sec .itm_pf .tit .link>li>a {
        padding: 0 16px;
        line-height: 32px;
    }
}

@media(max-width: 380px) {
    #project_sec .itm .tit h2 {
        font-size: 28px;
        line-height: 28px;
    }
}

/* 프로젝트섹션 끝 */

.br_480 {
    display: none;
}

@media(max-width: 1280px) {
    .inner {
        max-width: unset;
        padding: 80px 40px;
    }
}

@media(max-width: 768px) {
    .inner {
        max-width: unset;
        padding: 40px 16px;
        background: url(../images/itm_bg.png)no-repeat center center/cover;
    }
}

@media(max-width: 480px) {
    .br_480 {
        display: block;
    }
}