@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Caveat:wght@700&display=swap");

* {
  box-sizing: border-box;
}

body {
  background: url("https://images.unsplash.com/photo-1528044166082-4159f1209b3a?ixlib=rb-1.2.1&ixid=MXwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHw%3D&auto=format&fit=crop&w=1952&q=80")
    no-repeat center/cover;
  font-family: "Roboto", sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
  padding: 20px;
}

.container {
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1), 0 6px 6px rgba(0, 0, 0, 0.1);
  padding: 50px 20px;
  text-align: center;
  max-width: 100%;
  width: 800px;
}

h3 {
  margin: 0;
  opacity: 0.5;
  letter-spacing: 2px;
}

.activ {
  font-size: 30px;
  font-family: "Caveat", cursive;
  letter-spacing: 1px;
  line-height: 40px;
  margin: 50px auto;
  max-width: 600px;
}

.btn {
  background-color: #f84747;
  color: white;
  font-weight: bolder;
  border: 0;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1), 0 6px 6px rgba(0, 0, 0, 0.1);
  font-size: 16px;
  cursor: pointer;
  padding: 15px 40px;
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus {
  outline: 0;
}

@media (max-width: 350px) {
  .container {
    padding: 30px 20px;
  }

  .activ {
    margin: 30px auto;
    font-size: 30px;
  }
}