:root {
    --primary-color: #1a1b1c;
    --secondary-color: #e4e9f2;
    --btn-clolor : #000000;
    --font-size: 16px;
}

*,
::before,
::after {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
body{
  min-height: 100vh;
  padding: 50px 20px;
  border: 8px solid rgb(210, 203, 203);
  border-radius: 5px;
  font-family: 'Lato', Helvetica, Arial, sans-serif;
  font-size: 18px;
  background-color: var(--primary-color);
  color: var(--secondary-color);
}
h1 {
  text-align: center;
  margin: 20px auto;
  max-width: 350px; 
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
fieldset {
  border: 0 none;
  height: 100%;
  padding: 25px;
  margin: 10px 20px;
}
label {
  display: inline-block;
  font-size: 1.5rem;
  margin-bottom: 10px;
  font-weight: bold;
}
input:focus-visible,
button:focus-visible {
  outline: 3px solid rgb(85, 85, 176);
}
input {
  display: block;
  font-size: 2.5rem;
  width: 100%;
  height: 60px;
  padding: 6px 12px;
  margin: 10px 0;
  line-height: 1.4;
  color: black;
}

.output {
  color: black;
  background-color: white;
  border: 3px solid gray;
  font-size: 2.5rem;
  width: 90%;
  max-width: 500px;
  min-height: 55px;
  margin-top: 25px;
  padding: 15px;
  overflow-wrap: break-word;
  text-align: center;
}

button {
  color: var( --btn-clolor);
  background-image: linear-gradient(#fecc4c, #ffac33);
  border: 3px solid #feac32;
  padding: 10px 16px;
  font-size: 23px;
  width: 100%;
}