@charset "UTF-8";
* {
    margin: 0px;
    padding: 0px;
    /* font-family: 'Pretendard'; */
}
body{
    background-color: #f5f5f5;
}
ul, ol {
    list-style: none;
}

a {
    text-decoration: none
}

/* 로그인 표시 */
#user-menu {
  color: white;
  font-family: 'pre-bold';
}

#user-menu button {
  background: none;
  border: none;
  color: #67c7d8;
  font-weight: bold;
  cursor: pointer;
}

.main {
    background-color: #020019;
    width: 1920px;
    margin:  0px auto;
    height: 830px;
}
.main-wrap {
    width: 1560px;
    height: 830px;
    margin: 0 auto;
    position: relative;
    font-size: 200px;
    font-weight:bold;
}
.main-ai {
    background: linear-gradient(-45deg, #67c7d8, #60a5fa); /* 배경에 그라데이션 */
    -webkit-background-clip: text;   /* 텍스트 형태로 잘라내기 */
    -webkit-text-fill-color: transparent; /* 텍스트 색을 투명으로 */
    display: inline-block;
    /* font-weight: bold; */
    position: absolute;
    top: 115px;
    left: 100px;
    font-family: 'pre_black';
}
.main-x {
    color: #fff;
    position: absolute;
    top: 115px;
    left: 300px;
    z-index: 4;
     font-family: 'pre_black';
}
.main-item {
    position: absolute;
    z-index: 3;
    top: 80px;
    left: 380px;
}

.main-eng {
    color: #fff;
    position: absolute;
    top: 265px;
    left: 600px;
    z-index: 4;
     font-family: 'pre_black';
}
.main-ineer {
    color: #fff;
    position: absolute;
    top: 265px;
    left: 1010px;
    z-index: 2;
     font-family: 'pre_black';
}
.small-left {
    position: absolute;
    top: 90px;
    left: 100px;
}

.big-left {
    position: absolute;
    top: 370px;
    left: 320px;
}
.big-right {
    position: absolute;
    top: 180px;
    left: 1250px;
}
.three {
    position: absolute;
    bottom: 250px;
    right: -30px;
}
.main-wrap .scroll {
    color: #fff;
    font-size: 24px;
    text-align: center;
    display: flex;
    align-items: center;
    flex-direction: column;
    gap: 10px;
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
}
.up_down{
    animation: UD 1s linear infinite;
    width: 24px;
    height: 28px;
    background: url('../img//arrow/down_arrow.png') no-repeat center center/cover;
    cursor: pointer;
}
@keyframes UD{
    0% {
        transform:translateY(0);
      }

      50% {
        transform: translateY(-5px);
      }

      70% {
        transform: translateY(-5px);
      }

      100% {
        transform:translateY(0);
      }
    }

    @keyframes UD2{
    0% {
        transform:translateY(0);
      }

      50% {
        transform: translateY(-10px);
      }

      70% {
        transform: translateY(-10px);
      }

      100% {
        transform:translateY(0);
      }
    }
/* 스크롤 다운 애니메이션 추가 했어요 */
.main-video {
    width: 1920px;
    height: auto;
    position: relative;
    margin:  0 auto;
}
.main-video video {
    width: 1920px;
    height: auto;
    margin:  0 auto;
}
.video-text {
    font-size: 100px;
    color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    text-align: center;
    font-family: 'pre-bold';
}
section {
    background-color: #f5f5f5;
}
.why {
    width: 1920px;
    height: 1000px;
    margin:  100px auto;
}
.why-wrap {
    width: 1800px;
    margin: 0 auto;
    padding-top: 40px;
}
.why-wrap > p {
    text-align: center;
    font-size: 64px;
    font-weight: bold;
    padding-bottom: 30px;
    font-family: pre_black;
}
.why-wrap .why-info {
    width: 880px;
    height: 210px;
    background-color: #fff;
    border-radius: 20px;
    box-shadow: 4px 4px 4px rgba(0, 0, 0, 0.25);
    float: left;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.why-wrap > div:nth-of-type(2n+1) {
    margin-right: 40px;
    margin-bottom: 40px;
}
.why-info-left {
    width: 80%;
    padding-left: 20px;

}
.why-wrap  div p {
    font-size: 40px;
    font-family: 'pre-exbold';
}
.why-wrap  div ul {
    padding-left: 20px;
}
.why-wrap  div ul li{
    list-style-type:disc;
    font-size: 16px;
}
.why-info-right {
    width: 20%;
}
.ach {
    width: 1920px;
    padding: 50px 0;
    min-height: 100vh; 
    position: relative; /* pin 충돌 방지 */
    margin: 100px auto;
}

.ach-wrap {
    max-width: 1560px;
    margin: 0 auto;
    padding-top: 50px;
    text-align: center;
}
.ach-wrap-info {
    height: 300px;
}

.ach-wrap-info > p:first-child {
    font-size: 64px;
    font-weight: bold;
    font-family: pre_black;
}

.ach-wrap-info > p:nth-of-type(2) {
    font-size: 24px;
    margin: 15px 0;
     font-family: pre-mid;
}

.ach-wrap-info > a {
    font-size: 18px;
    margin-bottom: 30px;
    font-family: pre-mid;
    color: #020019;
}


.ach-wrap-skill {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    flex: 1 0 auto;
    gap: 8px;
    overflow: visible;
}

.skill-box {
    width: 90%;
    max-width: 1300px;
    height: 100px;
    margin: 0px auto;
    margin-bottom: 20px;
    position: relative;
    transform-origin: bottom;
   transition: all .5s ease;
   border-radius: 25px;
   overflow: hidden;
  cursor: pointer;
}

.skill-box img {
    width: 100%;
    height: 100%;
    border-radius: 25px;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.skill-box p {
    font-size: 3rem;
    color: #fff;
    font-weight: bold;
    position: absolute;
    letter-spacing: 4px;
    bottom: 40px;
    left: 30px;
    transition: all .3s;
    opacity: 0;
    font-family: pre_black;
}
.skill-box.active p {
     opacity: 1;
}

.skill-box.active {
    height: 300px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    flex: 2 0 auto;
}

.edu {
    width: 1920px;
    height: 750px;
    margin:  0 auto;
    overflow: hidden;
}
.edu-wrap-info {
    width: 1560px;
    height:300px;
    margin: 0 auto;
    /* padding-top: 150px; */
    text-align: center;
}
.edu-wrap-info > p:first-child {
    font-size: 4rem;
    font-family: pre-black;
}

.edu-wrap-info > p:nth-of-type(2) {
    font-size: 24px;
    margin: 5px 0;
    font-family: pre-mid;
}

.edu-wrap-info > a {
    font-size: 18px;
    margin-bottom: 30px;
    font-family: pre-mid;
    color: #020019;

}
.edu-wrap-skill {
  width: 100%;
  overflow: hidden;
  position: relative;
}

.edu-slider {
  display: flex;
  animation: slider 20s linear infinite;
  width: 8000px;
  gap: 100px;
}

.edu-slider div {
  min-width: 300px;
  height: 300px;
  background: #020019;
  border-radius: 20px;
  display: flex;
  align-items:center;
  justify-content: center;
  flex-direction: column;
}
.edu-wrap-skill div img {
    width: 150px;
    height: 150px;
    display: block;
    object-fit: contain;
}
.edu-wrap-skill div p {
    color: #fff;
    font-size: 22px;
    padding-top: 10px;
    font-family: pre-reg;
}

@keyframes slider {
    from{transform: translateX(0px);
    }
    to{transform: translateX(-4000px);
    }
}

/* .edu-slider:hover  {
    animation-play-state: paused;
} */

.speciality {
    width: 1920px;
    height: auto;
    margin: 100px auto;
}
.speciality-wrap {
    width: 1560px;
    margin: 0 auto;
    /* padding-top: 350px; */
}
.speciality-title {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 200px;
}
.speciality-title > p:first-child {
    font-size: 4rem;
    font-weight: bold;
    font-family: 'pre_black';
}
.speciality-title > p:nth-of-type(2) {
    font-size: 1.5rem;
}
.speciality-common {
    height: 620px;
}
.speciality-common > p{
    text-align: center;
    font-size: 3rem;
    font-family: 'pre-exbold';
    border-bottom: 5px solid ;
    padding-top: 30px;
}
.speciality-common div {
    float: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 350px;
    height: 350px;
    background-color: #fff;
    border-radius: 20px;
    box-shadow: 4px 4px 4px rgba(0, 0, 0, 0.25);
    margin-top: 52px;
    margin-right: 52px;
    position: relative;
}
.speciality-common div:last-child {
    margin-right: 0px;
}
.speciality-common div p {
    font-size: 1.5rem;
    font-weight: bold;
    position: absolute;
    top: 30px;
    left: 30px;
}
.speciality-common div img {
    position: absolute;
    bottom: 30px;
    right: 30px;
}
.speciality-diff {
    height: 500px;
}
.speciality-diff > p {
    text-align: center;
    font-size: 3rem;
    font-weight: bold;
    border-bottom: 5px solid ;
}
.speciality-diff div {
    width: 760px;
    height: 80px;
    background-color: #fff;
    border-radius: 20px;
    box-shadow: 4px 4px 4px rgba(0, 0, 0, 0.25);
    float: left;
    display: flex;
    align-items: center;
    justify-content:flex-start;
    margin-top: 40px;
}
.speciality-diff > div:nth-of-type(2n+1) {
    margin-right: 40px;  
}
.speciality-diff  div img {
    padding-left: 20px;
}
.speciality-diff  div p {
    font-size: 22px;
    font-weight: bold;
    padding-left: 20px;
}
.contact {
    width: 1920px;
    height: 600px;
    margin:  0 auto;
}
.contact-wrap {
    width: 1560px;
    margin: 0 auto;
    position: relative;
}
.contact-wrap img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    border-radius: 20px;
    filter: brightness(0.5);
}
.contact-title {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    text-align: center;
}
.contact-title > p:first-child {
    font-size: 4rem;
    font-weight: bold;
}
.contact-title > p:nth-of-type(2) {
    font-size: 1.5rem;
}
.contact-wrap .button {
    position: absolute;
    top: 60%;
    left: 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
}
.contact-wrap .button button {
    width: 400px;
    height: 100px;
    border-radius: 20px;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    outline: none;
    border: none;
    transition: all .3s;
}
.button .naver {
    background:  #03c75a;
    color: #fff;
}
.button .kakao {
    background:  #f7d900;
    color: #fff;
}
.button .ai {
    position: relative;
    z-index: 1;
    padding: 20px;
    background: transparent;
}
.button .ai::before {
    content: "";
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    background: linear-gradient(45deg, #67c7d8,#60a5fa);
    z-index: -1;
    border-radius: 20px;
}
.button button.act{
    transform: scale(1.1) !important;
}
.footer {
    width: 1920px;
    height: 180px;
    margin:  0 auto;
    background-color: #020019;
}
.footer-line {
    width: 100%;
    height: 3px;
    background: linear-gradient(45deg, #67c7d8,#60a5fa);
}
.footer-wrap {
    width: 1560px;
    margin: 0 auto;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 100px;
}
.footer-info {
    color: #fff;
    padding-top: 40px;
}