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

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  font-family: sans-serif;
}

body {
  background: url("background.png") no-repeat center center fixed;
  background-size: cover;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  text-align: center;
  padding: 1rem;
  max-width: 90%;
}

.logo {
  width: 100%;
  max-width: 400px;
  height: auto;
}

@media (max-width: 768px) {
  .logo {
    max-width: 300px;
  }
}

@media (max-width: 480px) {
  .logo {
    max-width: 240px;
  }
}