*{
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root{
  /* display */
  --display-height: calc(100vh - (8.5rem / 1.8));

  /* font */
  --XXl-header-font-size: clamp(3rem, 3.5vw, 3.75rem);
  
  --Xl-header-font-size: clamp(1.5rem, 2.5vw, 3rem);
  --Xl-des-font-size: clamp(1rem, 1.5vw, 1.55rem);
  --Xl-button-font-size: clamp(0.85rem, 0.95vw, 1.85rem);

  --L-header-font-size: clamp(1.5rem, 2.25vw, 2.5rem);
  --L-des-font-size: clamp(0.75rem, 1.25vw, 1.5rem);
  --L-button-font-size: clamp(0.85rem, 0.95vw, 1.85rem);

  --M-header-font-size: clamp(1.25rem, 1.75vw, 2.25rem);
  --M-des-font-size: clamp(0.65rem, 1.15vw, 1.45rem);
  --M-button-font-size: clamp(0.85rem, 0.95vw, 1.85rem);

  --SM-des-font-size: clamp(0.5rem, 1.15vw, 1.25rem);

  --S-header-font-size: clamp(1rem, 1.5vw, 2rem);
  --S-des-font-size: clamp(0.5rem, 1vw, 1.25rem);

  --main-font: "Nanum Myeongjo", serif;
  --des-font: "Urbanist", sans-serif;

  --light-font-w: 300;
  --normal-font-w: 500;
  --bold-font-w: 700;

  /* color */
  --whiteS: whitesmoke;
  --darkBlue0: #081671;
  --darkBlue1: #030b3f;
  --darkBlue2: #00020d;
  --lightGrey1: #c6c6c6;
  --lightGrey2: #a2a2a2;
  --black: #000;
  --gladient-darkblue: linear-gradient(90deg, #030b3f 40%, #010629 60%, #00020d 100%);
}

section.aboutUs{
  width: 100%;
  height: 100%;
  padding-top: calc(8.5rem / 1.8);
  display: flex;
  align-items: center;
}

section.aboutUs .mainContainer{
  width: 100%;
  height: 100%;
}

section.strategy,
section.history{
  height: calc(var(--display-height) / 2.25);
  width: 100%;
}

section.history{
  height: calc(var(--display-height) / 1.75);
}

section.aboutUs .container{
  height: 100%;
  width: 100%;
  display: flex;
  position: relative;
}

section.strategy .container .imgCon{
  width: 100%;
  height: 100%;
  position: absolute;
  img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 65%;
  }
  
}

.imgShadow{
  width: 100%;
  height: 100%;
  position: absolute;
  background-color: rgba(0, 0, 0, 0.352);
}

section.aboutUs .container .articleCon,
section.strategy .container .header{
  width: 100%;
  height: 100%;
  position: absolute;
  display: flex;
  justify-content: center;
  align-items: center;
}

section.strategy .container .header{
  flex-direction: column;
  font-family: var(--main-font);
  gap: 0.5rem;
  color: var(--whiteS);
  h1{
    font-weight: 700;
    font-size: var(--XXl-header-font-size);
    font-family: var(--des-font);
  }
  h4{
    font-weight: 400;
    font-size: var(--M-header-font-size);
  }
}

section.history .articleCon{
  flex-direction: column;
  gap: 1rem;
}

section.history .articleCon .header,
section.infoCard .articleCon .header,
section.ceoTalk .articleCon .header{
  font-family: var(--des-font);
  text-align: center;
  h2{
    font-size: var(--XXl-header-font-size);
  }
}

section.history .articleCon .description{
  width: max(65%, 50vw);
}

section.history .articleCon .description,
section.infoCard .articleCon .description,
section.ceoTalk .articleCon .description{
  font-family: var(--main-font);
  p{
    font-weight: var(--normal-font-w);
    font-size: var(--M-des-font-size);
    text-align: center;
  }
}

section.infoCard,
section.ceoTalk{
  height: calc(var(--display-height) / 1.5);
  width: 100%;
  background-color: #ededed;
  padding: 1vw;
}

section.infoCard .container{
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
}

section.infoCard .selectorMenuBar{
  width: 100%;
  padding-left: 15vw;
  height: calc((var(--display-height) / 1.5) / 5);
}

section.infoCard .selectorMenuBar ul{
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
  li{
    list-style: none;
    padding: 0.75rem 1.25rem;
    font-family: var(--des-font);
    color: var(--darkBlue1);
    font-size: var(--Xl-des-font-size);
    cursor: pointer;
  }
  .seperater{
    height: 2.5rem;
    width: 0.125rem;
    background-color: var(--darkBlue1);
  }
}

section.infoCard .selectorMenuBar li.active{
  border: solid var(--darkBlue0) 3px;
  border-radius: 2rem;
}

section.infoCard .infoContainer{
  width: 100%;
  height: calc(((var(--display-height) / 1.5) * (4/5)) - 1rem);
}

section.infoCard .infoContainer .infoSlide{
  display: none;
  width: 100%;
  height: 100%;
}

section.infoCard .infoContainer .infoSlide.active{
  display: flex;
}

section.infoCard .infoSlide .gridContainer,
section.ceoTalk .container{
  display: grid;
  width: 100%;
  height: 100%;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr;
}

section.infoCard .infoSlide .gridContainer article.articleCon{
  grid-column: 1/2;
  grid-row: 1/2;
  position: relative;
  width: 100%;
  height: 100%;
  flex-direction: column;
  align-items: start;
  padding-left: 15vw;
  padding-right: 5vw;
  gap: 1rem;
}

section.infoCard .articleCon .header h2,
section.ceoTalk .articleCon .header h2{
  font-size: var(--Xl-header-font-size);
}

section.infoCard .articleCon .description p,
section.ceoTalk .articleCon .description p{
  text-align: start;
  font-size: var(--L-des-font-size);
}

section.infoCard .infoSlide .gridContainer .gridImg{
  grid-column: 2/3;
  grid-row: 1/2;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  .imgCon{
    max-height: calc(((var(--display-height) / 1.5) * (4/5)) - 7rem);
    aspect-ratio: 1.5;
  }
  img{
    height: 100%;
    width: 100%;
    object-fit: cover;
  }
}

section.ceoTalk{
  background-color: white;
  height: calc(var(--display-height) / 1.25);
  width: 100%;
}

section.ceoTalk .container{
  grid-template-columns: 1.5fr 2fr;
}

section.ceoTalk .gridImg{
  grid-column: 1/2;
  grid-row: 1/2;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: end;
  padding-right: 5vw;
  align-items: center;
  .imgCon{
    height: calc((var(--display-height) / 1.5) - 2vw) !important;
    width: fit-content;
  }
  img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 2rem;
  }
}

section.ceoTalk article.gridArticle{
  grid-column: 2/3;
  grid-row: 1/2;
  position: relative;
  width: 100%;
  height: 100%;
  flex-direction: column;
  align-items: start !important;
}

section.ceoTalk article.gridArticle article.articleCon{
  width: 100%;
  height: 100%;
  flex-direction: column;
  display: flex;
  justify-content: center;
  align-items: start !important;
}

section.ceoTalk .articleCon .header h2{
  font-size: var(--M-des-font-size);
  margin-top: 1rem;
  font-weight: 900 !important;
}

section.ceoTalk .articleCon #header h2{
  font-size: var(--Xl-header-font-size);
  margin-bottom: 2rem;
  font-family: var(--main-font);
  font-weight: var(--normal-font-w) !important;
  /* font-weight: 900 !important; */
}

section.ceoTalk .articleCon .description p{
  line-height: 1.9rem;
  width: max(65%, 42vw);
  font-size: var(--L-des-font-size);
  font-weight: var(--normal-font-w);
  font-family: var(--des-font);
}

section.ceoTalk .articleCon button{
  margin-top: 2rem;
  color: var(--darkBlue1);
  border-color: var(--black) !important;
  border-radius: 3rem !important;
  font-size: var(--S-button-font-size);
  padding: 0.5rem 1rem;
  background-color: transparent;
  a{
    text-decoration: none;
    font-family: var(--des-font);
    color: var(--darkBlue1);
  }
}

@media screen and (max-width: 600px){
  section.infoCard .selectorMenuBar{
    padding: 0;
  }
  
  section.infoCard .selectorMenuBar ul{
    justify-content: center;
  }

  section.infoCard .articleCon .description p,
  section.ceoTalk .articleCon .description p{
    line-height: 1.25rem;
  }

  section.ceoTalk{
    height: 100vh !important;
    padding-top: 15vw;
  }

  section.ceoTalk .container{
    grid-template-rows: 20rem 2fr !important;
    grid-template-columns: 1fr;
  }
  
  section.ceoTalk .gridImg{
    grid-column: 1/2;
    grid-row: 1/2;
    height: 100%;
    justify-content: center;
    padding-right: 0;
    .imgCon{
      height: 90% !important;
      width: auto !important;
    }
  }  

  section.ceoTalk article.gridArticle{
    grid-column: 1/2;
    grid-row: 2/3;
  }
  
  section.ceoTalk article.gridArticle article.articleCon{
    display: flex !important;
    padding: 0 10vw;
    padding-top: 5vw;
    justify-content: start;
  }
  
  section.ceoTalk .articleCon .description p{
    line-height: 1.5rem;
    width: fit-content;
  }

  section.ceoTalk .articleCon .header h2{
    text-align: start;
  }

}