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

:root {
  --primary-color: white;
  --secondary-color: #555555;
  --extra-color: black;
}

body {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--extra-color);
  color: var(--primary-color);
}

.title {
  background-color: var(--secondary-color);
  border-radius: 10px;
  padding: 20px;
  margin: 20px 0px;
  color: yellow;
}

.main-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0px 0px 50px var(--secondary-color);
  border-radius: 10px;
  padding: 30px;
}

a {
  display: block;
  padding: 10px;
  color: var(--primary-color);
  text-decoration: underline yellow;
  text-underline-offset: 10px;
  letter-spacing: 3px;
  font-size: 30px;
  margin: 15px 0px;
}

.output {
  display: none;
  background-color: #105510;
  color: white;
  letter-spacing: 2px;
  font-weight: bold;
  border-radius: 10px;
  padding: 20px;
  margin: 20px 0px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}

button {
  background-color: var(--secondary-color);
  border: none;
  border-radius: 10px;
  margin: 20px;
  font-size: 20px;
  color: var(--primary-color);
  padding: 20px;
}

#toggle {
  color: yellow;
}

.content {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.input-field {
  margin: 20px 0px;
  font-size: 20px;
}

input[type="number"],
textarea {
  background-color: #404551;
  color: white;
}

.question {
  margin: 10px 0px;
  color: yellowgreen;
  letter-spacing: 3px;
}


.error {
  background-color: #ffebee;
  color: #b71c1c;
  border-radius: 10px;
  letter-spacing: 2px;
  font-weight: bold;
  border-radius: 10px;
  padding: 20px;
  margin: 20px 0px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}