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

a {
  text-decoration: none;
  color: #000;
}

body {
  font-family: "Roboto", sans-serif;
  background-color: #f5f5f5;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

.app {
  background: url(./images/bg.webp?v=123);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center top;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
}

.content {
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  margin-left: 35%;
}

.container {
  width: 40%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  margin-top: 5%;
}

.items {
  position: relative;
  width: 60%;
  height: 200px;
  z-index: 1;
  /* margin-top: 2%; */
  margin-bottom: -20%;
}

.poster {
  position: relative;
  z-index: 0;
  width: 60%;
}

.items img {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  width: 100%;
  animation: fade 6s infinite;
}

@keyframes fade {
  0% {
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  30% {
    opacity: 1;
  }
  40% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

.items img:nth-child(1) {
  animation-delay: 0s;
}
.items img:nth-child(2) {
  animation-delay: 2s;
}
.items img:nth-child(3) {
  animation-delay: 4s;
}

.btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 80%;
}

.btn1 {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 60%;
  margin-right: -2%;
}

.btn2 {
  width: 80%;
  margin-bottom: 5%;
}

.title-mb,
.text-mb {
  display: none;
}

@keyframes scaleAnimation {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.btn a img,.btn1 a img,.btn2 a img {
  animation: scaleAnimation 1.5s infinite ease-in-out;
}

.poster-mb {
  display: none;
}

@media screen and (max-width: 768px) {
  .app {
    background: url(./images/bg-mb.webp?v=123);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center top;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
  }

  .content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-left: 0;
  }

  .container {
    width: 90%;
    margin-top: 0;
  }

  .items {
    width: 90%;
    height: 20px;
    margin-bottom: -5%;
  }

  .poster {
    display: none;
  }

  .poster-mb {
    display: block;
    margin-bottom: -50%;
  }

  .btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 95%;
    gap: 0px;
  }

  .btn1 {
    margin: 0;
    width: 95%;
    position: relative;
    z-index: 10;
  }

  .btn2 {
    position: relative;
    z-index: 10;
    width: 95%;
  }
}