* {
  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: 100% 100%;
  background-position: top center;
  height: 100vh;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  overflow: hidden;
  position: relative;
}

.content-left {
  width: 45%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-left: 5%;
}

.content-right {
  width: 45%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-left: 3%;
  margin-top: -5%;
}

.games {
  width: 90%;
  margin: 0 auto;
}

.thuong-nap {
  width: 60%;
  margin: 0 auto;
  margin-top: -3%;
  display: flex;
  justify-content: center;
}

.btn {
  width: 80%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 2% 0;
  gap: 30px;
}

@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 {
  display: none;
}

.logo {
  display: none;
}

.text-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: top center;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    overflow: hidden;
    padding-top: 70px;
  }

  .content-left {
    width: 100%;
    height: auto;
    justify-content: flex-start;
    margin: 0 auto;
  }

  .content-right {
    width: 100%;
    margin: 0 auto;
  }

  .btn {
    margin-bottom: 5%;
    width: 80%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
  }

  .title {
    display: none;
  }

  .title-mb {
    width: 70%;
    display: block;
  }

  .thuong-nap {
    width: 90%;
  }
}