@import url("https://fonts.googleapis.com/css2?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");

body {
  margin: 0;
  background-color: #f4f4f4;
  font-family: Poppins;
  height: 100vh;
  overflow: hidden;
}

:root {
  --item1-transform: translateX(-100%) translateY(-5%) scale(1.5);
  --item1-filter: blur(30px);
  --item1-zIndex: 11;
  --item1-opacity: 0;

  --item2-transform: translateX(0);
  --item2-filter: blur(0px);
  --item2-zIndex: 10;
  --item2-opacity: 1;

  --item3-transform: translate(50%, 10%) scale(0.8);
  --item3-filter: blur(10px);
  --item3-zIndex: 9;
  --item3-opacity: 1;

  --item4-transform: translate(90%, 20%) scale(0.5);
  --item4-filter: blur(30px);
  --item4-zIndex: 8;
  --item4-opacity: 1;

  --item5-transform: translate(120%, 30%) scale(0.3);
  --item5-filter: blur(40px);
  --item5-zIndex: 7;
  --item5-opacity: 0;
}

header {
  width: 1140px;
  /* max-width: 90%; */
  /* display: flex; */
  /* justify-content: space-between; */
  /* margin: auto; */
  /* height: 50px; */
  /* align-items: center; */
  font-weight: bold;
  padding: 2vh 10vw;
  margin-top: 0;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 10vh;
  display: flex;
  align-items: center;
}

header a {
  text-decoration: none;
  color: #000;
  font-weight: bold;
}

/* carousel */
.carousel {
  position: absolute;
  top: 10vh;
  left: 0;
  right: 0;
  height: 90vh;
  overflow: hidden;
}

.carousel .list {
  position: absolute;
  width: 1140px;
  max-width: 90%;
  height: 100%;
  left: 50%;
  transform: translateX(-50%);
}

.carousel .list .item {
  position: absolute;
  left: 0%;
  width: 70%;
  height: 100%;
  font-size: 15px;
  transition: left 0.5s, opacity 0.5s, width 0.5s;
}

.carousel .list .item:nth-child(n + 6) {
  opacity: 0;
}

.carousel .list .item:nth-child(2) {
  z-index: 10;
  transform: translateX(0);
}

.carousel .list .item img {
  width: 50%;
  position: absolute;
  right: -20%;
  top: 50%;
  transform: translateY(-50%);
  transition: right 1.5s;
}

.carousel .list .item .introduce {
  opacity: 0;
  pointer-events: none;
}

.carousel .list .item:nth-child(2) .introduce {
  opacity: 1;
  pointer-events: auto;
  width: 400px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  transition: opacity 0.5s;
}

.carousel .list .item .introduce .title {
  font-size: 2em;
  font-weight: 500;
  line-height: 1em;
}

.carousel .list .item .introduce .topic {
  font-size: 4em;
  font-weight: 500;
}

.carousel .list .item .introduce .des {
  font-size: small;
  color: #5559;
}

.carousel .list .item .introduce .seeMore {
  font-family: Poppins;
  margin-top: 1.2em;
  padding: 5px 0;
  border: none;
  border-bottom: 1px solid #555;
  background-color: transparent;
  color: #ff3e3e;
  font-weight: bold;
  letter-spacing: 3px;
  transition: background 0.5s;
}

.carousel .list .item .introduce .seeMore:hover {
  background: #eee;
}

.carousel .list .item:nth-child(1) {
  transform: var(--item1-transform);
  filter: var(--item1-filter);
  z-index: var(--item1-zIndex);
  opacity: var(--item1-opacity);
  pointer-events: none;
}

.carousel .list .item:nth-child(3) {
  transform: var(--item3-transform);
  filter: var(--item3-filter);
  z-index: var(--item3-zIndex);
}

.carousel .list .item:nth-child(4) {
  transform: var(--item4-transform);
  filter: var(--item4-filter);
  z-index: var(--item4-zIndex);
}

.carousel .list .item:nth-child(5) {
  transform: var(--item5-transform);
  filter: var(--item5-filter);
  opacity: var(--item5-opacity);
  pointer-events: none;
}

/* animation text in item2 */
.carousel .list .item:nth-child(2) .introduce .title,
.carousel .list .item:nth-child(2) .introduce .topic,
.carousel .list .item:nth-child(2) .introduce .des,
.carousel .list .item:nth-child(2) .introduce .seeMore {
  opacity: 0;
  animation: showContent 0.5s 1s ease-in-out 1 forwards;
}

@keyframes showContent {
  from {
    transform: translateY(-30px);
    filter: blur(10px);
  }

  to {
    transform: translateY(0);
    opacity: 1;
    filter: blur(0px);
  }
}

.carousel .list .item:nth-child(2) .introduce .topic {
  animation-delay: 1.2s;
}

.carousel .list .item:nth-child(2) .introduce .des {
  animation-delay: 1.4s;
}

.carousel .list .item:nth-child(2) .introduce .seeMore {
  animation-delay: 1.6s;
}

/* next click */
.carousel.next .item:nth-child(1) {
  animation: transformFromPosition2 0.5s ease-in-out 1 forwards;
}

@keyframes transformFromPosition2 {
  from {
    transform: var(--item2-transform);
    filter: var(--item2-filter);
    opacity: var(--item2-opacity);
  }
}

.carousel.next .item:nth-child(2) {
  animation: transformFromPosition3 0.7s ease-in-out 1 forwards;
}

@keyframes transformFromPosition3 {
  from {
    transform: var(--item3-transform);
    filter: var(--item3-filter);
    opacity: var(--item3-opacity);
  }
}

.carousel.next .item:nth-child(3) {
  animation: transformFromPosition4 0.9s ease-in-out 1 forwards;
}

@keyframes transformFromPosition4 {
  from {
    transform: var(--item4-transform);
    filter: var(--item4-filter);
    opacity: var(--item4-opacity);
  }
}

.carousel.next .item:nth-child(4) {
  animation: transformFromPosition5 1.1s ease-in-out 1 forwards;
}

@keyframes transformFromPosition5 {
  from {
    transform: var(--item5-transform);
    filter: var(--item5-filter);
    opacity: var(--item5-opacity);
  }
}

/* previous */
.carousel.prev .list .item:nth-child(5) {
  animation: transformFromPosition4 0.5s ease-in-out 1 forwards;
}

.carousel.prev .list .item:nth-child(4) {
  animation: transformFromPosition3 0.7s ease-in-out 1 forwards;
}

.carousel.prev .list .item:nth-child(3) {
  animation: transformFromPosition2 0.9s ease-in-out 1 forwards;
}

.carousel.prev .list .item:nth-child(2) {
  animation: transformFromPosition1 1.1s ease-in-out 1 forwards;
}

@keyframes transformFromPosition1 {
  from {
    transform: var(--item1-transform);
    filter: var(--item1-filter);
    opacity: var(--item1-opacity);
  }
}

/* detail  */
.carousel .list .item .detail {
  opacity: 0;
  pointer-events: none;
}

/* showDetail */
.carousel.showDetail .list .item:nth-child(3),
.carousel.showDetail .list .item:nth-child(4) {
  left: 100%;
  opacity: 0;
  pointer-events: none;
}

.carousel.showDetail .list .item:nth-child(2) {
  width: 100%;
}

.carousel.showDetail .list .item:nth-child(2) .introduce {
  opacity: 0;
  pointer-events: none;
}

.carousel.showDetail .list .item:nth-child(2) img {
  right: 55%;
}

.carousel.showDetail .list .item:nth-child(2) .detail {
  opacity: 1;
  width: 45%;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  text-align: right;
  pointer-events: auto;
  padding-left: 30px;
}

.carousel.showDetail .list .item:nth-child(2) .detail .title {
  font-size: 4em;
}

.carousel.showDetail .list .item:nth-child(2) .detail .specifications {
  /* display: flex; */
  gap: 10px;
  width: 100%;
  border-top: 1px solid #5553;
  margin-top: 20px;
}

.carousel.showDetail .list .item:nth-child(2) .detail .specifications div {
  width: 90px;
  text-align: right;
  flex-shrink: 0;
}

.carousel.showDetail
  .list
  .item:nth-child(2)
  .detail
  .specifications
  div
  p:nth-child(1) {
  font-weight: bold;
}

.carousel.carousel.showDetail .list .item:nth-child(2) .checkout button {
  font-family: Poppins;
  background-color: transparent;
  border: 1px solid #5555;
  margin-left: 5px;
  padding: 5px 10px;
  letter-spacing: 2px;
  font-weight: 500;
}

.carousel.carousel.showDetail
  .list
  .item:nth-child(2)
  .checkout
  button:nth-child(1) {
  background-color: #ff3e3e;
  color: #eee;
}

.carousel.showDetail .list .item:nth-child(2) .detail .title,
.carousel.showDetail .list .item:nth-child(2) .detail .des,
.carousel.showDetail .list .item:nth-child(2) .detail .specifications,
.carousel.showDetail .list .item:nth-child(2) .detail .checkout {
  opacity: 0;
  animation: showContent 0.5s 1s ease-in-out 1 forwards;
}

.carousel.showDetail .list .item:nth-child(2) .detail .des {
  animation-delay: 1.2s;
}

.carousel.showDetail .list .item:nth-child(2) .detail .specifications {
  animation-delay: 1.4s;
}

.carousel.showDetail .list .item:nth-child(2) .detail .checkout {
  animation-delay: 1.6s;
}

.arrows {
  position: absolute;
  bottom: 2vh;
  width: 1140px;
  max-width: 90%;
  display: flex;
  justify-content: space-between;
  left: 50%;
  transform: translateX(-50%);
}

#prev,
#next {
  width: 50px;
  height: 50px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  position: relative;
}

#prev:hover,
#next:hover {
  transform: scale(1.2);
}

#prev::before {
  content: "";
  width: 12px;
  height: 12px;
  border-left: 3px solid #000;
  border-bottom: 3px solid #000;
  transform: rotate(45deg);
}

#next::before {
  content: "";
  width: 12px;
  height: 12px;
  border-right: 3px solid #000;
  border-bottom: 3px solid #000;
  transform: rotate(-45deg);
}

#next {
  left: unset;
  right: unset;
}

#back {
  position: absolute;
  z-index: 100;
  bottom: 1vh;
  left: 50%;
  transform: translateX(-50%);
  border: none;
  border-bottom: 1px solid #555;
  font-family: Poppins;
  font-weight: bold;
  letter-spacing: 3px;
  background-color: transparent;
  padding: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s;
}

.carousel.showDetail #back {
  opacity: 1;
  pointer-events: auto;
}

.carousel #prev,
.carousel #next {
  opacity: 1;
  pointer-events: auto;
}

.carousel.showDetail #prev,
.carousel.showDetail #next {
  opacity: 1;
  pointer-events: auto;
}

.carousel::before {
  width: 20vw;
  height: 90vh;
  content: "";
  background-image: linear-gradient(70deg, #dc422a, blue);
  position: fixed;
  top: 10vh;
  left: 50%;
  transform: translateX(-50%);
  z-index: -1;
  border-radius: 20% 30% 80% 10%;
  filter: blur(150px);
  transition: 1s;
}

.carousel.showDetail::before {
  transform: translate(-20%, 0%) rotate(90deg);
  filter: blur(130px);
}

@media screen and (max-width: 991px) {
  /* ipad, tablets */
  .carousel .list .item {
    width: 90%;
  }

  .carousel.showDetail .list .item:nth-child(2) .detail .title {
    font-size: 2em;
  }
}

@media screen and (max-width: 767px) {
  /* mobile */
  .carousel {
    height: 90vh;
  }

  .carousel .list .item {
    width: 100%;
    font-size: 10px;
  }

  .carousel .list {
    height: 100%;
  }

  .carousel .list .item:nth-child(2) .introduce {
    width: 50%;
  }

  .carousel .list .item img {
    width: 40%;
  }

  .carousel.showDetail .list .item:nth-child(2) .detail {
    backdrop-filter: blur(10px);
    font-size: small;
  }

  .carousel .list .item:nth-child(2) .introduce .des,
  .carousel.showDetail .list .item:nth-child(2) .detail .des {
    height: 100px;
    overflow: auto;
  }

  .carousel.showDetail .list .item:nth-child(2) .detail .checkout {
    display: flex;
    width: max-content;
    float: right;
  }
}
