*,
*::before,
*::after {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

:root {
  --primary-dark-hsl: 200, 100%, 10%;
  --primary-hsl: 200, 100%, 50%;
  --primary-light-hsl: 200, 100%, 90%;
  --success-hsl: 100, 60%, 50%;
  --error-hsl: 0, 60%, 50%;
}

body {
  margin: 0;
}

.full-screen-container {
  background-image: url(background-image.jpg);
  width: 100vw;
  height: 100vh;
  background-size: cover;
  background-position: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-container {
  --color: hsla(var(--primary-dark-hsl), 0.7);
  background-color: var(--color);
  padding: 3rem 2rem;
  width: 80%;
  max-width: 600px;
  border-radius: 1rem;
  box-shadow: 0 0 15px 0 var(--color);
}

.title {
  margin-top: 0;
  color: white;
  font-size: 2rem;
  font-weight: normal;
  text-align: center;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 7px;

  label {
    font-size: 1rem;
    font-weight: lighter;
    color: white;
  }

  input {
    font-size: 1.25rem;
    border: none;
    color: white;
    background-color: hsla(var(--primary-light-hsl), 0.3);
    border-radius: 5px;
    padding: 0.75rem;
  }

  input:focus {
    outline: 1px solid hsl(var(--primary-hsl));
  }
}

.message {
  display: none;
  font-size: 0.75rem;
}

.input-group.success {
  input {
    outline: 1px solid hsl(var(--success-hsl));
  }
  .message {
    display: block;
    color: hsl(var(--success-hsl));
  }
}

.input-group.error {
  input {
    outline: 1px solid hsl(var(--error-hsl));
  }
  .message {
    display: block;
    color: hsl(var(--error-hsl));
  }
}

.login-button {
  color: white;
  font-size: 1.5rem;
  background-color: hsla(var(--primary-hsl), 0.3);
  border: 1px solid hsl(var(--primary-hsl));
  border-radius: 5px;
  padding: 0.75rem;
  cursor: pointer;
}

.login-button:hover,
.login-button:focus {
  background-color: hsla(var(--primary-hsl), 0.5);
  outline: none;
}