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

body {
  font-family: Arial, Helvetica, sans-serif;
  height: 100vh;
  width: 100%;
  line-height: 1.4;
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
    url(background.jpg) no-repeat center/cover;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
}

h1.title {
  color: #fff;
  font-size: 4rem;
}

h1.title span {
  color: goldenrod;
  letter-spacing: 1px;
  background: rgba(0, 0, 0, 0.6);
  padding: 0.25rem 0.5rem;
}

p.subtitle {
  color: #fff;
  letter-spacing: 1px;
  margin: 1rem 0;
  font-size: 2.5rem;
  font-style: italic;
}

i {
  font-size: 2.5rem;
  color: #fff;
  margin: 2rem 0;
  animation: arrow 1s infinite;
}

form {
  width: 50%;
  height: 75px;
  background: #ccc;
  display: flex;
  justify-content: center;
  align-items: center;
}

input[type="email"] {
  width: 70%;
  height: 40px;
  padding: 1rem;
  outline: none;
  border: none;
  font-size: 1.1rem;
  letter-spacing: 1px;
  border-radius: 10px 0 0 10px;
}

.btn {
  border: none;
  outline: none;
  width: 20%;
  height: 40px;
  background: goldenrod;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  transition: background 0.4s;
  border-radius: 0 10px 10px 0;
}

.btn:hover {
  background: #ffcd4f;
}

@keyframes arrow {
  0% {
    transform: translateY(0);
  }
  20% {
    transform: translateY(4px);
  }
  40% {
    transform: translateY(8px);
  }
  60% {
    transform: translateY(8px);
  }
  80% {
    transform: translateY(4px);
  }
  100% {
    transform: translateY(0);
  }
}

@media (max-width: 750px) {
    .container{
        padding: 0 0.25rem;
    }
  h1.title {
    text-align: center;
    font-size: 3rem;
  }
  h1.title span {
    display: block;
  }

  p.subtitle{
      font-size: 1.5rem;
  }

  form{
      width: 98%;
  }

  .btn{
      font-size: 0.9rem;
      font-weight: normal;
      padding: 0 1rem;
      width: 25%;
  }

 input[type="email"]{
      font-size: 0.75rem;
      width:70%
  }
}