* {
  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);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center top;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
}

.content {
  width: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3%;
}

.main {
  width: 100%;
  display: flex;
}

.action {
  width: 70%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.banner {
  margin: -5% 0;
  width: 80%;
}

.btn {
  width: 80%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.text-guide {
  width: 90%;
  margin: 2% 0;
}

.btn1 {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.btn2 {
  width: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.btn a img {
  /* animation: scaleAnimation 1.5s infinite ease-in-out; */
}

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

@media screen and (max-width: 768px) {
  .app {
    background: url(./images/bg-mb.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    height: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow: hidden;
  }

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

  .title,
  .text,
  .banner {
    display: none;
  }

  .title-mb {
    display: block;
    width: 65%;
  }

  .action {
    width: 100%;
  }

  .btn {
    gap: 0;
    width: 80%;
  }

  .btn1,
  .btn2 {
    gap: 0;
  }

  .btn1 {
    width: 90%;
  }

  .btn2 {
    width: 40%;
  }

  .banner-mb {
    display: block;
    width: 95%;
    margin-top: -15%;
  }
}