:root {
  --font-size-h1: 2rem;
  --line-height-primary: 1.681793;
  --line-height-secondary: 1.189207;
}

*,
::before,
::after {
  background-color: transparent;
  border-width: 0;
  box-sizing: border-box;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, sans-serif; /* Ajustado para a forma solicitada */
  font-size: 1rem;
  line-height: var(--line-height-primary);
}

.container {
  margin: 0 auto;
  max-width: 600px;
  padding: 2rem 1rem;
}

h1 {
  font-size: var(--font-size-h1);
  font-weight: 700;
  line-height: var(--line-height-secondary);
  margin-bottom: 2rem;
  text-align: center;
}

.input-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
}

input {
  background-color: white;
  border-radius: 0.25rem;
  border: 1px solid gainsboro;
  display: block;
  padding: 0.5rem;
  transition: 250ms all linear;
  width: 100%;
}

input:focus {
  outline: none; 
  border-color: dodgerblue; 
  filter: drop-shadow(0 0 2px royalblue);
}

button {
  background-color: dodgerblue;
  border-radius: 0.25rem;
  border: 1px solid dodgerblue;
  color: white;
  cursor: pointer;
  display: block;
  font-weight: 700;
  letter-spacing: 1px;
  margin: 1rem 0;
  padding: 0.5rem;
  transition: 250ms all linear;
  width: 100%;
}

button:hover {
  background-color: royalblue;
  border-color: royalblue;
}

.output-group {
  border-bottom: 1px solid gainsboro;
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding: 0.5rem 0;
}