@import url("https://fonts.googleapis.com/css2?family=Bungee&family=Montserrat:ital,wght@0,100..900;1,100..900&family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap");

video {
  width: 100%;
  height: auto;
}

/* HEADER */

video {
  z-index: -1;
}

.section2-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.txt-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.textbox {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: #00449c;
  width: 1138px;
  padding: 30px;
  z-index: 1;
}

.h1-textbox {
  font-family: "Bungee", sans-serif;
  font-size: clamp(4rem, 5vw + 1rem, 6.25rem);
  color: #9edffe;
  margin: 0;
}

.p-textbox {
  font-family: "Montserrat", sans-serif;
  font-weight: 400;
  font-size: 2.188rem;
  color: #fff;
  width: 1040px;
  text-align: center;
  margin: 0;
}

.btn-explore {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 50px;
}

.explore {
  background-color: #00449c;
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  color: #fff;
  padding: 5px 15px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 3.125rem;
  width: 294px;
  cursor: pointer;
}

/*MAIN*/
main {
  background-image: url("../assets/indexbackground.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  max-width: 100%;
  height: auto;
}

.section-index1,
.section-index2,
.section-index3 {
  display: flex;
  flex-direction: row;
  justify-content: space-evenly;
  padding: 35px;
}

.section-div {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.h1-index1 {
  width: 561px;
  text-align: center;
  margin: 0;
}

.p-index1 {
  text-align: right;
  width: 580px;
  margin: 0;
  font-size: 1.563rem;
}

.arrow {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 60px;
}

.p-index2 {
  text-align: left;
  width: 580px;
  margin: 0;
  padding-bottom: 15px;
  font-size: 1.563rem;
}

/* H1 CARDS */

.cards-wrapper {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
}

.card1-wrapper,
.card2-wrapper,
.card3-wrapper {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-bottom: 20px;
}

.card1-btn,
.card2-btn,
.card3-btn {
  width: 445px;
  background-color: #00449c;
  border-radius: 0 0 25px 25px;
  margin-top: -67px;
}

.h1-card {
  display: flex;
  justify-content: center;
  padding: 10px;
}

#check,
#check2,
#check3 {
  display: none;
}

#check:checked ~ .content1 {
  display: block;
}

#check2:checked ~ .content2 {
  display: block;
}

#check3:checked ~ .content3 {
  display: block;
}

.content1,
.content2,
.content3 {
  display: none;
}

.label1,
.label2,
.label3 {
  cursor: pointer;
}

.p-cards {
  color: #fff;
  font-size: 1.125rem;
  padding: 18px;
}

.p-link {
  color: #fff;
  font-size: 1.125rem;
}

.x {
  display: flex;
  justify-content: center;
  padding-bottom: 10px;
}

/*-----*/
.h2-index {
  color: #00449c;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  font-size: 1.55rem;
  text-align: center;
  width: 450px;
  height: auto;
  padding: 8px;
}

.p-small {
  text-align: center;
  width: 448px;
  font-size: 1.25rem;
}

.exhibition-wrapper {
  position: relative;
  overflow: hidden;
}

.img-space1 {
  border-radius: 25px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
}

.img-space2 {
  display: none;
}

.exhibition-btn {
  background-color: #00449c;
  border: 1px solid #9edffe;
  font-family: "Bungee", sans-serif;
  border-radius: 25px;
  color: #9edffe;
  padding: 5px 15px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 3.125rem;
  width: 485px;
  cursor: pointer;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* MEDIA QUERIES */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* mobile to small tablet */
@media screen and (min-width: 300px) and (max-width: 600px) {
  video {
    width: auto;
    height: 780px;
  }

  .section2-header {
    max-width: 100%;
    overflow: hidden;
  }

  .h1-textbox {
    font-size: 1.7rem;
    width: 320px;
    text-align: center;
  }

  .p-textbox {
    font-size: 0.875rem;
    width: 300px;
  }

  .textbox {
    width: 100%;
  }

  .explore {
    font-size: 1.438rem;
    width: 133px;
  }

  .section-index1,
  .section-index3 {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 0;
  }

  .section-index2 {
    display: flex;
    flex-direction: column-reverse;
  }

  .p-index1 {
    text-align: center;
    width: 300px;
    font-size: 0.938rem;
  }

  .p-index2 {
    text-align: center;
    width: 300px;
    font-size: 0.938rem;
  }

  .h1-index1 {
    width: 300px;
    padding: 10px;
  }

  .p-small {
    width: 300px;
    font-size: 0.938rem;
  }

  .h2-index {
    font-size: 1.25rem;
    width: 300px;
  }

  .cards-wrapper {
    display: flex;
    flex-direction: column;
  }

  .p-cards {
    font-size: 1rem;
  }

  .card1-btn,
  .card2-btn,
  .card3-btn {
    width: 100%;
    margin-top: -49px;
  }

  .exhibition-btn {
    padding: 5px 15px;
    font-size: 2.063rem;
    width: 300px;
  }

  .img-space1 {
    display: none;
  }

  .exhibition-wrapper {
    position: relative;
    margin: 0;
    padding: 0;
  }

  .img-space2 {
    display: block;
    object-fit: cover;
    width: 100%;
    height: auto;
    padding-bottom: 40px;
  }
}

/* "FOR KIDS", "FOR TEACHER", "FOR RESEARCHER" */
@media screen and (min-width: 445px) and (max-width: 600px) {
  .card1-btn,
  .card2-btn,
  .card3-btn {
    width: 445px;
  }
}

/* tablet and small laptops */
@media screen and (min-width: 601px) and (max-width: 900px) {
  video {
    width: auto;
    height: 780px;
  }

  .section2-header {
    max-width: 100%;
    overflow: hidden;
  }

  .h1-textbox {
    font-size: 3rem;
    width: 520px;
    text-align: center;
  }

  .p-textbox {
    font-size: 1.2rem;
    width: 400px;
  }

  .textbox {
    width: 100%;
  }

  .explore {
    font-size: 1.9rem;
    width: 200px;
  }

  .section-index1,
  .section-index3 {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 0;
  }

  .section-index2 {
    display: flex;
    flex-direction: column-reverse;
  }

  .p-index1,
  .p-index2 {
    text-align: center;
    width: 500px;
    font-size: 1.5rem;
  }

  .h1-index1 {
    width: 600px;
    padding: 10px;
  }

  .p-small {
    width: 450px;
    font-size: 1.2rem;
  }

  .h2-index {
    font-size: 1.25rem;
    width: 600px;
  }

  .cards-wrapper {
    display: flex;
    flex-direction: column;
    position: relative;
  }

  .p-cards {
    font-size: 1.3rem;
  }

  .exhibition-btn {
    padding: 5px 15px;
    font-size: 3.063rem;
    width: 500px;
  }

  .img-space1 {
    display: none;
  }

  .exhibition-wrapper {
    position: relative;
    margin: 0;
    padding: 0;
  }

  .img-space2 {
    display: block;
    object-fit: cover;
    width: 100%;
    height: auto;
    padding-bottom: 40px;
  }
}

/* laptop to larger desktops */
@media screen and (min-width: 901px) and (max-width: 1300px) {
  video {
    width: auto;
    height: 780px;
  }

  .section2-header {
    max-width: 100%;
    overflow: hidden;
  }

  .h1-textbox {
    font-size: 4rem;
    width: 700px;
    text-align: center;
  }

  .p-textbox {
    font-size: 1.7rem;
    width: 700px;
  }

  .textbox {
    width: 100%;
  }

  .explore {
    font-size: 2.4rem;
    width: 260px;
  }

  .section-index1,
  .section-index3 {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 0;
  }

  .section-index2 {
    display: flex;
    flex-direction: column-reverse;
  }

  .p-index1,
  .p-index2 {
    text-align: center;
    width: 600px;
    font-size: 1.6rem;
  }

  .h1-index1 {
    width: 700px;
    padding: 10px;
  }

  .p-small {
    width: 460px;
    font-size: 1.5rem;
  }

  .h2-index {
    font-size: 1.6rem;
    width: 600px;
  }

  .cards-wrapper {
    display: flex;
    flex-direction: column;
    position: relative;
  }

  .p-cards {
    font-size: 1.3rem;
  }

  .exhibition-btn {
    padding: 5px 15px;
    font-size: 3.063rem;
    width: 500px;
  }

  .img-space1 {
    display: block;
  }

  .exhibition-wrapper {
    position: relative;
    margin: 0;
    padding: 0;
  }

  .img-space2 {
    display: none;
  }
}

/* larger monitors */
@media screen and (min-width: 1000px) {
}