body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

.tool-card {
  transition: transform .15s ease, box-shadow .15s ease;
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .1);
}

textarea.font-monospace {
  font-size: .9rem;
}

.result-value {
  font-size: 2rem;
  font-weight: 600;
}