@font-face{
    font-family:'NanumSquareRound-L';
    src: url(../font/Nanum/NanumSquareRoundL.woff2) format('woff2');
    font-style: normal;
}
@font-face{
    font-family:'NanumSquareRound-R';
    src: url(../font/Nanum/NanumSquareRoundR.woff2) format('woff2');
    font-style: normal;
}
@font-face {
    font-family: 'Pretendard-Regular';
    src: url(../font/Pretendard/Pretendard-Regular.woff2) format('woff2'),
         url(../font/Pretendard/Pretendard-Regular.woff) format('woff');
    font-style: normal;
}
@font-face {
    font-family: 'Pretendard-Light';
    src: url(../font/Pretendard/Pretendard-Light.woff2) format('woff2'),
         url(../font/Pretendard/Pretendard-Light.woff) format('woff');
    font-style: normal;
}
@font-face {
    font-family: 'Pretendard-SemiBold';
    src: url(../font/Pretendard/Pretendard-SemiBold.woff2) format('woff2'),
         url(../font/Pretendard/Pretendard-SemiBold.woff) format('woff');
    font-style: normal;
}
@font-face {
    font-family: 'Pretendard-Bold';
    src: url(../font/Pretendard/Pretendard-Bold.woff2) format('woff2'),
         url(../font/Pretendard/Pretendard-Bold.woff) format('woff');
    font-style: normal;
}
@font-face {
    font-family: 'NexonLv2';
    src: url(../font/B_WEB_NEXON_Lv2_Gothic/NEXON\ Lv2\ Gothic.woff) format('woff');
    font-style: normal;
}
@font-face {
    font-family: 'NexonLv2-Bold';
    src: url(../font/B_WEB_NEXON_Lv2_Gothic/NEXON\ Lv2\ Gothic\ Bold.woff) format('woff');
    font-style: normal;
}
@font-face {
    font-family: 'NexonLv2-Light';
    src: url(../font/B_WEB_NEXON_Lv2_Gothic/NEXON\ Lv2\ Gothic\ Light.woff) format('woff');
    font-style: normal;
}

.fixed{
    position: fixed;
}

a{
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}
.dont-touch{
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

:root {
    --main-bg-color: #ffffff;
    --main-font-color: black;
    --section-bg-color:  #f9f9ff;
    --section-bg-color:  #fafaff;
    --section-title-color: rgb(40, 40, 40);
    --main-icon-color: rgb(60, 60, 60);
    --border-color: #D4D4D5;
    --color-arcticice: #ccd9f1;
    --color-navy: rgb(32, 38, 62);
    --color-lightnavy: rgb(50, 56, 78);
    --mid-title-color: #c1cbde;
}

html {
    font-size: 16px;
    height: -webkit-fill-available;
    /* scroll-snap-type: y proximity; */
    /* scroll-snap-type: y mandatory; */
}

body {
    min-height: 100vh;
    min-height: -webkit-fill-available;
    margin: 0px;
    background-color: var(--main-bg-color);
    color: var(--main-font-color);
    font-family: 'Pretendard-light', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-y: auto;
    overflow-x: hidden;
    /* background-image: url(../images/background_img.jpg); 
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    -webkit-background-size: cover;
     */
}
body::-webkit-scrollbar {
    width: 8px;
}
body::-webkit-scrollbar-thumb {
    background-color: #4f4f4f;
}
body::-webkit-scrollbar-track {
    background-color: #a9b4ca;
    background-color: #e4e4e4;
}
ul{
    margin: 0;
    padding-inline-start: 0px;
    list-style: none;
    margin-block-start: 0;
    margin-block-end: 0;
}

.ex-content ul{
    padding-inline-start: 15px;
}
.ex-content li{
    white-space: nowrap;
}
.ex-content li:before{
    content:"-";
    display: inline-block;
    width: 0.85em;
}

/* PAGE LOADER */
.loader {
    position: fixed;
    display: flex;
    justify-content: center;
    align-items: center;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    /* height: -webkit-fill-available; */
    /* height: fill-available; */
    /* height: 100%; */
    /* height: calc(var(--vh, 1vh) * 100); */
    background-color: #e5e5e5;
    z-index: 9999;
    /* 드래그 방지 */
    -ms-user-select: none;
    -moz-user-select: -moz-none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    user-select: none;
}
.loader-img {
    /* position: fixed; */
    /* top: 50%; */
    /* left: 50%; */
    /* transform: translate(-50%, -100%); */
    width: 140px;
    margin-bottom:40px;
    height: auto;
    clip-path: inset(1px 1px);
}
/* COMMON */
a:link, a:visited {
    text-decoration: none;
    color:black;
}
a:hover, a:active {
    color:rgb(65, 96, 231);
}
.link-icon::after{
    content: "";
    display: inline-block;
    height: 10px;
    width: 13px;
    background: url(../images/icons/link-solid.svg) no-repeat;
    -webkit-filter: invert(0%) sepia(20%) saturate(30%) hue-rotate(209deg) brightness(104%) contrast(61%);
    filter: invert(0%) sepia(20%) saturate(30%) hue-rotate(209deg) brightness(104%) contrast(61%);
    transform: rotate(-15deg);
}
.link-icon:hover::after{
    -webkit-filter: invert(26%) sepia(25%) saturate(7341%) hue-rotate(225deg) brightness(105%) contrast(81%);
    filter: invert(26%) sepia(25%) saturate(7341%) hue-rotate(225deg) brightness(105%) contrast(81%);
}

/* FIXED BUTTON */
.up-button{
    position: fixed;
    bottom: 20px;
    right: 20px;
    opacity: 70%;
    scale: 90%;
    transition: transform 0.3s ease, opacity 0.3s ease, scale 0.3s ease;
    -webkit-transition: transform 0.3s ease, opacity 0.3s ease, scale 0.3s ease;
    transform: translate(80px, 0px);
    z-index: 10;
}
.up-button a{
    display: flex;
    position: relative;
    align-items: center;
    justify-content: center;
}

.up-button .svg-back{
    position: absolute;
    width: 38px;
    z-index: -1;
}

.up-button .svg-fore{
    width: 40px;
    fill: var(--color-lightnavy);
}

.up-button:hover{
    opacity: 100%;
    scale: 100%;
}
/*  */


/* MAIN CONTENTS 1 */
#main-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-bar{
    display: flex;
    flex-direction: row;
    align-items: center;
    min-height: 50px;
    background: rgb(32,38,62);
    background: linear-gradient(156deg, rgba(32,38,62,1) 0%, rgba(29,29,93,1) 50%, rgba(20,60,120,1) 100%);
}

.qr-wrap{
    padding-top: 10px;
}

.qr-image{
    width: 90px;
    height: auto;
    padding: 5px;
    border: 2px solid var(--color-arcticice);
    border-radius: 10px;
}

.content-container {
    display: flex;
    /* border: 2px solid rgba(55, 92, 255, 1); */
    flex-direction: column;
    align-items: center;
    padding: 20px 20px;
}

.section-wrap {
    display: flex;
    width: 100%;
    max-width: 1300px;
    margin-top: 10px;
    justify-content:flex-start;
    align-items: stretch;
    flex-direction: row;
    gap: 1.5%;
    flex-wrap: nowrap; 
    /* border: 2px solid rgba(250, 0, 0, 1); */
    font-size: 17px;
}

.section-items{
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 30px 40px 15px;
    margin-right: auto;
    /* flex-basis: 100%; */
    background-color: var(--section-bg-color);
    word-break: keep-all;
    box-shadow: 0px 0px 10px -5px gray;
    /* transition: all 0.3s;  */
}

.section-items:nth-child(1){
    flex-grow: 1;
}
.section-items:nth-child(2){
    flex-grow: 2.5;
}

.section-items-profile{
    display: flex;
    flex-direction: column;
}

.item-title{
    font-family: 'Pretendard-Bold', sans-serif;
    color: var(--section-title-color);
    margin-bottom: 0.4em;
    margin-top: 0.2em;
    letter-spacing: 0.06em;
    padding: 0px 5px;
}

.item-content{
    display: flex;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 0.75em;
}

.font40{
    font-size: 40px;
}
.font35{
    font-size: 35px;
}
.font25{
    font-size: 25px;
}
.font20{
    font-size: 20px;
}

.mid-title{
    position: relative;
    align-self: flex-start;
    font-size: 18px;
    margin-top:0.2em;
    margin-bottom: 0.6em;
    padding: 3px 6px;
    z-index: 0;
}

.mid-title-back{
    position: absolute;
    background-color: var(--mid-title-color);
    top: 0px;
    left: 0px;
    height: 100%;
    border-radius: 3px;
    z-index: -1;
    will-change: width;
    transform: translateZ(0);
}

.typing-effect{
    position: absolute;
    color:#ff2f2f;
    visibility: hidden;
}

.tags{
    max-width: 300px;
    margin-bottom: 0;
}

.tags .skill-tag{
    margin-right: 0.3em;
    margin-bottom: 0.5em;
}

.skill-tag{
    font-size: 0.75em;
    /* font-weight: bold; */
    padding: 3px 10px;
    border-radius: 10px;
    color: white;
    background-color: #4f4f4f;
    white-space:nowrap;
}

.item-title-second{
    font-family: 'Pretendard-Bold', sans-serif;
    color:rgb(30, 37, 62);
    /* color:black; */
}

.contact{
    font-family: 'Pretendard-Regular';
}

.svg-icon{
    width: 1em;
    margin-right: 5px;
    fill: var(--main-icon-color);
    align-self: center;
}

.line1{
    width: 100%;
    border-bottom: 1px solid var(--border-color);
    /* box-shadow: 1px 1px 3px rgb(224, 224, 224); */
    border-radius: 10px;
    margin: 1em 0;
}

.mt05em{
    margin-top: 0.5em;
}
.mt10em{
    margin-top: 1em;
}

.mt15em{
    margin-top: 1.5em;
}
.mt20em{
    margin-top: 2em;
}

.ex-title-wrap{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: baseline;
    flex-basis: 100%;
}
.ex-name{
    font-weight: 900;
}
.ex-name + span{
    margin-right: auto;
}
.ex-name ~ span{
    font-size: 0.95em;
}

.ex-date{
    position:relative;
    margin-right: 10px;
    margin-left: 5px;
    color:rgb(54, 54, 54);
}
.ex-date::before{
    content: "";
    position: absolute;
    top: -2px;
    left: -6px;
    width: calc(100% + 12px);
    height: calc(100% + 4px);
    border-radius: 4px;
    background-color: #ccd4e2;
    z-index: -1;
}

.ex-content{
    font-family: 'Pretendard-Regular';
    align-items: flex-start;
    position: relative;
    padding-right: 3em;
    word-break: break-all;
}

.vertical-line{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    position: absolute;
    top: 0px;
    right: 0px;
    margin: 0px 2.6em 0px 2em;
    width: 2px;
    background-color: #c1c5cc;
    background: linear-gradient(0deg, rgb(141, 149, 174) 0%, rgba(126, 135, 169, 0.2) 100%);
    border-radius: 15px;
}


.vertical-line svg{
    width: 6px;
    fill: #9ca0a7;
    opacity: 0;
}

.ex-content-list li{
    margin-bottom: 0.4em;
    /* font-family: 'Pretendard-Regular', sans-serif; */
}
.ieetu li{
    margin-bottom: 0.35em;
}

.ex-content-list li a{
    display: inline-flex;
    position: relative;
    overflow: hidden;
    z-index: 0;
    padding: 8px 2px;
    white-space: normal;
    max-width: calc(100% - 0.85em);
}

.ex-content-list li a::before{
    content:"";
    display: block;
    width: 100%;
    height: 80%;
    top: 10%;
    left: -110%;
    border-radius: 2px;
    position: absolute;
    background-color: var(--color-arcticice);
    transition: color 0.6s ease, left 0.6s ease;
    -webkit-transition: color 0.6s ease, left 0.6s ease;
    transition-delay: 100ms;
    z-index: -1;
    will-change: left;
    transform: translateZ(0);
}

.ex-content-list li a:hover{
    color: var(--main-font-color);
}

.ex-content-list li:hover a::before,
.ex-content-list a:focus::before,
.ex-content-list a:active:before{
    left: 0;
}

.nomargin{
    margin: 0;
}

/* DOWN ICON */
.down-icon-wrap{
    margin: 30px 20px;
    transition: transform 0.6s ease;
    -webkit-transition: transform 0.6s ease;
}
.down-icon-wrap:hover{
    transform: translate(0px, 10px);
    -webkit-transform: translate(0px, 10px);
}
.down-icon{
    fill:rgb(133, 133, 133);
    width: 30px;
    padding: 10px;
}
/* DOWN ICON END */

.main-title{
    display: flex;
    flex-direction: row;
    align-items: center;
    min-height: 50px;
    padding: 30px;
    justify-content: center;
    color: white;
    font-family: 'Pretendard-Bold';
    letter-spacing: 0.08em;
}

.main-title span{
    padding: 10px;
    /* scroll-snap-align: start; */
    /* 드래그 방지 */
    -ms-user-select: none;
    -moz-user-select: -moz-none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    user-select: none;
}
.grad-color-navy{
    background: linear-gradient(-20deg, rgba(32,38,62,1) 0%, rgba(29,29,93,1) 30%, rgba(20,60,120,1) 100%);
}
.grad-color-green{
    background: linear-gradient(-20deg, rgb(32, 58, 62) 0%, rgb(29, 78, 93) 40%, rgb(20, 113, 120) 100%);
}



/* EX-GALLERY */
.gallery{
    background-color: white;
    font-size: 17px;
}

.gallery-container{
    width: 100%;
    max-width: 1739px;
    font-size: 1em;
    /* height: 100vh; */
    /* border: 1px solid black; */
}

.gallery-wrap{
    margin: 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    /* gap: 5px; */
    /* border: 1px solid blue; */
}
.gallery-wrap::after {
    content: "";
    width: 32%;  
}

/* 하이딩모드 */
.before-hide{
    justify-content: end;
    align-items: center;
    flex-wrap: nowrap;
    cursor: pointer;
    /* 드래그 방지 */
    -ms-user-select: none;
    -moz-user-select: -moz-none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    user-select: none;
}
.before-hide::after{
    content: "";
    width: auto;
}
.h-bar{
    flex-grow: 1;
    margin: 0;
    /* height: 0px; */
    color: #666
}

.h-bar > span {
    /* font-style: italic; */
    font-weight: bold;
    vertical-align: top;
    height: 130%;
    position: relative;
    opacity: 1;
    will-change: opacity;
    transition: opacity 0.7s ease;
    -webkit-transition: opacity 0.7s ease;
    background: linear-gradient(to left, #828282 0%, var(--custom-color, #828282) 90%) text;
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}
.hide_ms .h-bar > span, .hide_ms .down-icon3 {
    --custom-color: #8e5353;
}
.hide_bs .h-bar > span, .hide_bs .down-icon3 {
    --custom-color: #3e6666;
}

.h-bar > span::before {
    content:"";
    display: block;
    position: absolute;
    left: var(--custom_value, 0%);
    width: 100%;
    height: 150%;
    background-color: var(--main-bg-color);
    will-change: left;
    transition: left 0.6s ease;
    -webkit-transition: left 0.6s ease;
}
.custom_per_class {
    --custom_value: 100%;
}

.down-icon3{
    --default-color: rgb(150, 150, 150);
    fill: var(--default-color);
    width: 20px;
    margin: 5px 10px;
    /* transform: rotateZ(-90deg); */
    transition: transform 0.5s ease, fill 0.7s ease;
    -webkit-transition: transform 0.5s ease, fill 0.7s ease;
}
.down-icon4{
    --default-color: rgb(130, 130, 130);
    fill: var(--default-color);
    width: 10px;
    height: 10px;
    scale: 1.4;
    margin-left: 5px;
    /* transform: rotateZ(-180deg); */
    transition: transform 0.5s ease, fill 0.7s ease;
    -webkit-transition: transform 0.5s ease, fill 0.7s ease;
}

.gallery-wrap-hide{
    position: relative;
    /* max-height: 230px; */
    max-height: 230px;
    overflow: hidden;
    transition: max-height 0.7s ease;
    -webkit-transition: max-height 0.7s ease;
    will-change: height;
}
.gallery-wrap-hide .hide-base{
    position: absolute;
    height: 100%;
    width: 100%;
    z-index: 1;
    background-image: linear-gradient(0deg, rgba(255,255,255,1) 0%, rgba(255,255,255,0.4) 30%, rgba(255,255,255,0) 100%);
    backdrop-filter: grayscale(0%) blur(0.3px);
    -webkit-backdrop-filter: grayscale(0%) blur(0.3px);
    transition: opacity 0.7s ease;
    -webkit-transition: opacity 0.7s ease;
    opacity: 1;
    /* 드래그 방지 */
    -ms-user-select: none;
    -moz-user-select: -moz-none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    user-select: none;
}
.gallery-wrap-hide .hide-panel{
    display: flex;
    position: absolute;
    justify-content: center;
    align-items: end;
    height: 100%;
    width: 100%;
    z-index: 2;
    opacity: 1;
    border-radius: 5px;
    background-image: linear-gradient(0deg, rgba(255,255,255,1) 0%, rgba(255,255,255,0.95) 55%, rgba(255,255,255,0) 100%);
    backdrop-filter: grayscale(70%) blur(0.6px);
    -webkit-backdrop-filter: grayscale(70%) blur(0.6px);
    transition: backdrop-filter 0.7s ease, opacity 0.7s ease;
    -webkit-transition: backdrop-filter 0.7s ease, opacity 0.7s ease;
    will-change: opacity;
    /* 드래그 방지 */
    -ms-user-select: none;
    -moz-user-select: -moz-none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    user-select: none;
}
/* .gallery-wrap-hide .hide-panel-ms{
    background-image: linear-gradient(0deg, rgb(255, 255, 255) 0%, rgba(255,255,255,0.9) 60%, rgba(172, 115, 115,0) 100%);
}
.gallery-wrap-hide .hide-panel-bs{
    background-image: linear-gradient(0deg, rgb(255, 255, 255) 0%, rgba(255,255,255,0.9) 60%, rgba(172, 115, 115,0) 100%);
} */

.hide-panel .down-icon-wrap{
    width: 100%;
    padding: 35px 0px;
    margin: 0px auto;
    cursor: pointer;
    }

.hide-panel .down-icon-wrap > div{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
    -webkit-transition:opacity 0.5s ease;
}

.hide-panel .down-icon-wrap:hover{
    transform: translate3d(0px, 5px, 0px);
    -webkit-transform: translate3d(0px, 5px, 0px);
}

.hide-panel:has(.down-icon-wrap:hover){
    opacity: 0.2;
}

.hide-panel div span{
    color: #666;
    /* color: rgb(172, 115, 115); */
    /* color: rgb(72, 124, 111); */
    text-align: center;
}
.hide-panel .mouse-icon{
    fill:rgb(133, 133, 133);
    width: 15px;
    padding: 10px;
    transition: transform 0.5s ease,;
    -webkit-transition: transform 0.5s ease;
    filter: drop-shadow(0px 1px 2px rgba(50, 50, 50, 0.4));
    -webkit-filter: drop-shadow(0px 1px 2px rgb(50 50 50 / 0.4));
}
.gallery-content{
    /* align-self: stretch; */
    /* flex-grow: 1; */
    box-sizing: border-box;
    display: flex;
    position: relative;
    flex-direction: column;
    /* align-items: center; */
    border-radius: 5px;
    padding: 15px 10px 10px;
    margin-bottom: 20px;
    width: 32%;
    min-height: 500px;
    border: 1px solid var(--border-color);
    box-shadow: 0px 0px 8px -5px gray;
    background-color: white;
    background-color: var(--section-bg-color);
}
.gallery-content::before{
    content:"";
    position: absolute;
    top: 6px;
    left: calc(50% - 60px);
    width: 120px;
    height: 3px;
    border-radius: 10px;
    background-color: var(--border-color);
}
.gallery-content::after{
    content:"";
    position: absolute;
    top: 0px;
    right: 17px;
    width: 70px;
    height: 10px;
    font-size: 15px;
    text-align: center;
    line-height: 20px;
    color:rgb(64, 64, 64);
    border-radius: 0px 0px 4px 4px;
}

.gallery-content.mobilus::after{
    content:"";
    background-color: rgb(10, 64, 151);
}

.gallery-content.ieetu::after{
    content:"";
    background-color: rgb(138, 158, 191);
}
.gallery-content.knu::after{
    content:"";
    background-color: rgb(172, 115, 115);
}
.gallery-content.dhu::after{
    content:"";
    background-color: rgb(72, 124, 111);
}

.gallery-title{
    align-self: center;
    text-align: center;
    font-family: 'Pretendard-SemiBold';
    font-size: 17px;
    color: rgb(50, 50, 50);
    margin: 10px 5px 0px;
    padding: 5px 10px;
    border-radius: 5px;
}

.gallery-content .skills{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}
.gallery-content .skills .skill-tag{
    margin: 2px;
}

.gallery-text{
    font-family: 'Pretendard-Regular';
    color:rgb(40, 40, 40);
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin: 5px;
    margin-top: 10px;
    padding: 10px 12px;
    font-size: 16px;
    background-color:rgb(240, 240, 240);
    /* background-color: #f6f6ff; */
    border-radius: 7px;
    line-height: 1.6;
    flex-grow: 1;
    text-align: justify;
    word-break: break-all;
    /* border: 1px solid var(--border-color); */
    
}
.gallery-text p{
    margin-block-start: 0.2em;
    margin-block-end: 0.2em;
}
.gallery-text p a{
    color: rgb(0, 32, 148);
    text-decoration: underline;
}
.gallery-text b{
    font-family: 'Pretendard-SemiBold';
}

video::-webkit-media-controls-overlay-play-button {
    scale: 0.6;
}
.gallery-date-fixed{
    display: none;
    opacity: 0;
    position: fixed;
    font-size: 16px;
    background-color: #ccd4e2;
    color: black;
    border-radius: 5px 0px 0px 5px;
    padding: 5px 5px;
    /* bottom: 50px; */
    bottom: 80px;
    /* left: 0px; */
    right: 0px;
    z-index: 1;
    box-shadow: 0px 0px 5px -3px gray;
    transition: transform 0.4s ease;
    -webkit-transition: transform 0.4s ease;
    transform: translate(-80px, 0px);
    -webkit-transform: translate(-80px, 0px);
}
/* .gallery-content img, .gallery-content video{
    width: 100%;
    height: 100%;
    object-fit: cover !important;
} */


/* CERTIFI */
.certifi-container{
    width: 100%;
    max-width: 1300px;
}

.certifi-wrap{
    margin: 30px 10px;
    display: flex;
    justify-content:space-between;
    flex-wrap: wrap;
    font-size: 1px;
}

.certifi-card{
    display: flex;
    box-sizing: border-box;
    position: relative;
    flex-direction: column;
    /* align-items: center; */
    justify-content: center;
    border-radius: 12px;
    padding: 20px 17px;
    margin-bottom: 30px;
    width: 49%;
    min-height: 100px;
    border: 1px solid var(--border-color);
    box-shadow: 0px 0px 8px -5px gray;
    background-color: var(--section-bg-color) !important;
    overflow: hidden;
    --alpha: 0.8;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

.certifi-card::before{
    content: "";
    position: absolute;
    left: 0px;
    top: 0px;
    width: 10px;
    height: 100%;
    transition: opacity 0.8s ease;
    -webkit-transition: opacity 0.8s ease;
}
.certifi-card span,
.certifi-card::before{
    background-color: rgb(var(--r), var(--g), var(--b));
    z-index: 3;
    backface-visibility: hidden;
}

.certifi-card span:nth-child(1){
    align-self: flex-start;
    margin: 2px 10px;
    font-family: 'Pretendard-SemiBold';
    font-size: 25em;
    color: rgb(45, 45, 45);
}
.certifi-card span:nth-child(2){
    align-self: flex-start;
    margin: 2px 10px;
    font-family: 'Pretendard-light';
    font-size: 15em;
    color: rgb(75, 75, 75);
}
.certifi-card span:nth-child(3){
    align-self: flex-start;
    margin: 2px 10px;
    font-family: 'Pretendard-light';
    font-size: 15em;
    color: rgb(75, 75, 75);
}
.certifi-card span:nth-child(4){
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 0px;
    right: 20px;
    width: 60px;
    height: 20px;
    border-radius: 0px 0px 5px 5px;
    font-family: 'Pretendard-light';
    font-size: 15em;
    color: white;
    transition: top .2s ease;
    transition-delay: .2s;
}
.certifi-card span:nth-child(5){
    position: absolute;
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    right: -133px;
    top: 0px;
    width: 130px;
    backdrop-filter: blur(1px);
    height: calc(100% + 2px);
    transition: right .4s ease;
    box-shadow: 0px 0px 3px black;
    background-color: rgba(var(--r), var(--g), var(--b), var(--alpha));
}
.certifi-card span:nth-child(5) div{
    display: flex;
    align-items: center;
    justify-content: center;
}
.certifi-card span:nth-child(5) div p{
    font-family: 'Pretendard-Regular';
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 2px;
    font-size: 12px;
    background-color: rgb(253, 253, 253);
    padding: 2px 3px;
    border-radius: 5px 0px 5px 0px;
    filter: drop-shadow(0px 0px 1px black);
    -webkit-filter: drop-shadow(0px 0px 1px black);
}
.certifi-card span:nth-child(5) div img{
    width: 33px;
    margin: -1px;
    height: auto;
    filter:drop-shadow(0px 0px 1px black);
    -webkit-filter:drop-shadow(0px 0px 1px black);
}
.certifi-card:nth-child(7) span:nth-child(5) div img{
    filter: none;
    -webkit-filter: none;
    width: 30px;
}

.wave-box {
    position: absolute;
    top: 0px;
    left: calc(-50% - 600px + 400px);
    width: 100%;
    height: 100%;
    transition: left 1s ease;
    -webkit-transition: left 1s ease;
    z-index: 0;
    will-change: left;
    transform: translateZ(0);
}
.wave-back {
    position: absolute;
    top: 0px;
    left: calc(0% - 10px);
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, rgb(var(--r), var(--g), var(--b)) 0%, rgb(var(--r), var(--g), var(--b)) 30%, rgba(0, 0, 0, 0) 100%);
}
.wave {
    position: absolute;
    background: rgb(var(--r), var(--g), var(--b));
    top: -50px;
    left: calc(50% - 400px);
    width: 600px;
    height: 600px;
    transform-origin: 50% 48%;
    border-radius: 43%;
    will-change: transform;
    transform: translateZ(0);
}
.wave.-one {
    opacity: 40%;
}
.wave.-two {
    opacity: 80%;
}
.wave.-three {
    opacity: 20%;
}
@keyframes drift {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
@-webkit-keyframes drift {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.certifi-card:hover .wave-box{
    display: block;
    left: 0;
    transition: left 1.5s ease;
    -webkit-transition: left 1.5s ease;
}
.certifi-card:hover .wave.-one{
    animation: drift 6000ms infinite linear;
    -webkit-animation: drift 6000ms infinite linear;
}
.certifi-card:hover .wave.-two{
    animation: drift 9000ms infinite linear;
    -webkit-animation: drift 9000ms infinite linear;
}
.certifi-card:hover .wave.-three{
    animation: drift 7000ms infinite linear;
    -webkit-animation: drift 7000ms infinite linear;
}

.certifi-card span:nth-child(1),
.certifi-card span:nth-child(2),
.certifi-card span:nth-child(3){
    transition: color 1s ease;
    -webkit-transition: color 1s ease;
    will-change: color;
    background-color: transparent !important;
} 
.certifi-card:hover span:nth-child(1),
.certifi-card:hover span:nth-child(2),
.certifi-card:hover span:nth-child(3){
    color: rgb(255, 255, 255);
}
.certifi-card:hover::before{
    opacity: 0%;
}
.certifi-card:hover span:nth-child(5){
    right: 0px;
    transition-delay: .5s;
}
.certifi-card:hover span:nth-child(4){
    transition-delay: 0s;
    top: -20px;
}

.certifi-card:nth-child(1){--r: 73; --g: 96; --b: 139;}
.certifi-card:nth-child(2){--r: 115; --g: 134; --b: 164;}
.certifi-card:nth-child(3){--r: 65; --g: 99; --b: 125;}
.certifi-card:nth-child(4){--r: 114; --g: 128; --b: 180;}
.certifi-card:nth-child(5){--r: 72; --g: 124; --b: 107;}
.certifi-card:nth-child(6){--r: 41; --g: 97; --b: 114;}
.certifi-card:nth-child(7){--r: 20; --g: 113; --b: 120;}

/* INTEREST */
.grad-color-blue{
    /* background: linear-gradient(-20deg, rgb(23, 65, 100) 0%, rgb(54, 95, 149) 40%, rgb(112, 148, 195) 100%); */
    background: linear-gradient(140deg, rgb(91, 127, 175) 0%, rgb(57, 52, 117) 50%, rgb(144, 42, 148) 100%);
}

.interest-container{
    width: 100%;
    max-width: 1300px;

}
.interest-wrap{
    margin: 8px 0px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.interest-tag{
    display: flex;
    flex-direction: column;
    gap: 5px;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: 10px;
    min-width: 180px;
    min-height: 80px !important;
    text-align: center;
    font-family: 'Pretendard-SemiBold';
    font-size: 18px;
    color: white;
    /* background: linear-gradient(120deg, rgb(126, 134, 193) 0%, rgb(100, 133, 191) 50%, rgb(148, 165, 232) 100%); */
    background-color: rgb(78, 96, 139);
    /* background: linear-gradient(140deg, rgb(91, 127, 175) 0%, rgb(52, 69, 117) 50%, rgb(144, 42, 148) 100%); */
}

.interest-wrap li{
    height: 250px;
    cursor: pointer;
    position: relative;
    flex-grow: 1;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0px 0px 2px black;
    transition: opacity .3s ease;
}
.interest-wrap li::before{
    content: "";
    display: block;
    position: absolute;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    transition: height 0s;
    transition-delay: .1s;
    z-index: 2;
}
.interest-wrap li div{
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: 'Pretendard-SemiBold';
    font-size: 20px;
    color: white;
    box-sizing: border-box;
    padding: 0px 10px;
    flex-wrap: wrap;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    background-color: rgba(20, 20, 20, 0.6);
    backdrop-filter: blur(1px);
    z-index: 1;
    opacity: 0;
    transition: opacity .4s ease;
}
.interest-wrap li div span{
    text-align: center;
}
.interest-wrap li img,
.interest-wrap li video{
  object-fit: cover;
  width: 100%;
  height: 100%;
  vertical-align: middle;
  background-color: black;
  backface-visibility: hidden;
  will-change: transform;
  transition: transform .4s ease;
  -webkit-transition: transform .4s ease;
}

.interest-wrap li:hover img,
.interest-wrap li:hover video{
    transform: scale(1.04);
    -webkit-transform: scale(1.04);
}

.interest-wrap li:hover div{
    opacity: 1;
}
.interest-wrap li:hover::before{
    height: 0;
}
.interest-li-fixed{
    position: fixed !important;
    height: 100% !important;
    transform: scale(1) !important;
    transition: transform 0s !important;
    margin: 0;
    padding: 0;
    /* display: flex;
    align-items: center;
    justify-content: center; */
    cursor: default !important;
    border-radius: 0px !important;

    top: 0px;
    left: 0px;
    width: 100%;
    background-color: #666;
    z-index: 9998 !important;
}
.interest-contents-fixed{
    object-fit: contain !important;
    transform: scale(1) !important;
    -webkit-transform: scale(1) !important;
}
.interest-div-fixed{
    display: none !important;
}


/* FOOTER */
#footer{
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-top: auto;
    background-color:rgb(87, 87, 87);
    color:#ebebeb;
    height: 100px;
}

#footer br{
    display: none;
}
/* FOOTER END */

 /* 미디어 쿼리 780px */

@media screen and (max-width: 1450px){
    .gallery-wrap{
        margin: 10px;
    }
    .gallery-content{
        flex-basis: 49%;
    }
}

@media screen and (max-width: 1023px) {
        /* MAIN-CONTENT */
    .content-container{
        padding: 15px 7px;
    }

    .section-items{
        padding: 15px 20px 7px;
    }
    .section-wrap {
        font-size: 16px;
        margin-top: 5px;
        gap: 8px;
    }
    .section-items:nth-child(2){
        flex-grow: 3.5;
    }
    .font40{
        font-size: 35px;
    }

    .font35{
        font-size: 30px;
    }
    .font25{
        font-size: 22px;
    }
    .font20{
        font-size: 18px;
    }
    .mt15em{
        margin-top:1em;
    }
    .mt20em{
        margin-top:1.4em;
    }
    .mid-title{
        font-size: 17px;
    }
    .ex-content{
        padding-right: 0.5em;
    }
    .vertical-line{
        display: none;
    }
    .gallery-wrap{
        margin: 10px;
    }
    .gallery-content{
        flex-basis: 49%;
    }
    .hide-panel div span{
        font-size: 0.95em;
    }
}

@media screen and (max-width: 768px){
    .ex-content ul{
        /* padding-inline-start: 2px; */
        padding-inline-start: 3px;
    }
    .ex-content li::before{
        width: 0.6em;
    }
    /* LOADER */
    .loader-img {
        width: 80px;
    }

    .section-wrap {
        flex-direction: column;
    }
   
    .section-items{
        padding: 15px 15px 7px;
        align-self: stretch;
        margin-right: 0;
        flex-grow: 1;
    }

    .ex-content{
        padding-right: 0;
    }
    .ex-content-list li a{
        padding: 6px 1px;
        max-width: calc(100% - 0.7em);
    }
    /* .ex-content-list li {
        margin-bottom: 0.8em;
    } */

    .tags{
        max-width: 280px;
    }
    .ex-date{
        font-size: 14px !important; 
    }
    .down-icon-wrap-mb{
        display: none;
    }

     /* GALLERY CONTENT */
    .gallery-wrap{
        margin: 0px;
    }
    .gallery-content{
        flex-basis: 100%;
        margin-bottom: 15px;
    }
    .gallery-text{
        font-size: 16px;
    }

    /* CERTIFI */
    .certifi-card{
        flex-basis: 100%;
        margin-bottom: 15px;
    }
    .certifi-wrap{
        margin: 2px;
        font-size: 0.9px;
    }
    
    /* INTEREST */
    .interest-wrap li{
        height: 190px;
    }
    .interest-wrap{
        margin: 5px 0px;
        gap: 5px;
    }
    .interest-wrap li div{
        font-size: 18px;
    }

    /* for Hiding */
    .mouse-icon{
        width: 15px;
    }
    .before-hide{
        margin: 5px;
    }

    /* FOOTER */
    #footer {
        font-size: 14px;
    }

    #footer br{
        display: inline;
    }
    #footer span{  
        display: inline-block;
        margin-top: 4px; 
    }
}

@media screen and (max-width: 480px){
    .main-bar{
        display: none;
    }
    .section-items{
        padding: 15px 10px 7px;
    }
    .gallery-text{
        margin: 10px 0px;
        padding: 8px 10px;
    }
    .ex-date{
        margin-right: 4px;
    }

    .ex-date::before{
        content: "";
        position: absolute;
        top: -1px;
        left: -3px;
        width: calc(100% + 6px);
        height: calc(100% + 2px);
        border-radius: 4px;
        background-color: #ccd4e2;
        z-index: -1;
    }
    .gallery-content{
        padding: 15px 5px;
    }

    .gallery-title{
        margin: 10px 0px 0px;
        padding: 5px 5px;
    }
    .interest-wrap li{
        height: 150px;
    }
    .h-bar > span {
        font-size: 15px;
    }
    .down-icon3{
        margin: 8px 4px 8px 1px;

    }
}


@media screen and (min-width: 1023px) and (orientation: portrait){
    .section-items{
        padding: 15px 15px 7px;
    }
    .section-wrap {
        font-size: 16px;
        margin-top: 5px;
        gap: 10px;
    }
    .section-items:nth-child(2){
        flex-grow: 3.5;
    }
    .vertical-line{
        display: none;
    }
}