:root {
  --primary-color: #111827;
  --tw-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--primary-color);
  color: white;
}

.container {
  margin: 1rem auto;
  width: 90%;
  text-align: center;
}

label {
  color: rgb(175, 170, 170);
}

#btn-calc {
  background-color: white;
  color: var(--primary-color);
  padding: 0.4rem 1rem;
  margin-top: 1rem;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  border: none;
}

#message {
  font-size: 1.5rem;
}

.input-container {
  margin: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.input-label {
  font-weight: bold;
  margin: 1rem;
}
.input {
  width: 250px;
  padding: 0.5rem;
  border: solid #1d4ed8 1px;
}

.input :focus-visible {
  outline: none;
}

footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin-top: 5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

footer p {
  font-weight: bold;
  margin: 0;
  color: white;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}
.footer-list {
  display: flex;
  justify-content: center;
  list-style: none;
}
.links {
  color: white;
  margin: 0.5rem 1rem;
}