* {
  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%;
}

.app1 {
  background: url(./images/bg1.webp);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center top;
  display: flex;
  height: 100vh;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  overflow: auto;
  position: relative;
  z-index: 10;
  margin-bottom: -3%;
}

.app1 .content {
  width: 35%;
  margin-right: 10%;
}

.app1 .btn {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 50px;
}

.app2 {
  background: url(./images/bg2.webp);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  display: flex;
  height: 100vh;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  overflow: auto;
  position: relative;
  margin-top: -6%;
  margin-bottom: -4%;
}

.app2 .content {
  margin-top: 10%;
  width: 35%;
  margin-right: 10%;
}

.app2 .btn {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 10px;
}

.app3 {
  background: url(./images/bg3.webp);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  display: flex;
  height: 100vh;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  overflow: auto;
  position: relative;
  margin-top: -2%;
}

.app3 .content {
  margin-top: 0%;
  width: 35%;
  margin-right: 10%;
}

.app3 .btn {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 10px;
  margin-top: 5%;
}

.footer {
  background: url(./images/footer.webp);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center bottom;
  display: flex;
  height: 60vh;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: auto;
  position: relative;
}

.footer .content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-top: 0%;
  width: 60%;
}

.footer .btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 60%;
  gap: 10px;
  margin-top: 2%;
}

.separate,
.separate1 {
  position: relative;
  z-index: 10;
}

.footer .title-mb {
  display: none;
}

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

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

@media screen and (max-width: 768px) {
  .app1 {
    background: url(./images/bg1-mb.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    display: flex;
    height: 110vh;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    overflow: auto;
    position: relative;
    z-index: 10;
  }

  .app1 .content {
    margin-top: 10%;
    width: 80%;
    margin-right: 0%;
  }

  .app1 .btn {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 20px;
  }

  .app2 {
    background: url(./images/bg2-mb.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center top;
    display: flex;
    height: 120vh;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    overflow: auto;
    position: relative;
    margin-top: -6%;
    margin-bottom: -4%;
  }

  .app2 .content {
    margin-top: 35%;
    width: 80%;
    margin-right: 0%;
  }

  .app2 .btn {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .app3 {
    background: url(./images/bg3-mb.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    display: flex;
    height: 110vh;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    overflow: auto;
    position: relative;
    margin-top: -2%;
  }

  .app3 .content {
    margin-top: 0%;
    width: 80%;
    margin-right: 0%;
  }

  .app3 .btn {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 10px;
    margin-top: 5%;
  }

  .footer {
    background: url(./images/footer.webp);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center bottom;
    display: flex;
    height: 60vh;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: auto;
    position: relative;
  }

  .footer .content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-top: 0%;
    width: 80%;
  }

  .footer .btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    gap: 10px;
    margin-top: 5%;
  }

  .footer .title {
    display: none;
  }

  .footer .title-mb {
    display: block;
  }
}