@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
} 
nav{
  display: flex;
  height: 80px;
  width: 100%;
  background: #1b1b1b;
  align-items: center;
  justify-content: space-between;
  padding: 0 50px 0 100px;
  flex-wrap: wrap;
  box-shadow: 0 6px 8px 0 rgba(0, 0, 0, 0.32),
              0 6px 16px 0 rgba(0, 0, 0, 0.24),
              0 6px 24px 0 rgba(0, 0, 0, 0.20),
              0 6px 32px 0 rgba(0, 0, 0, 0.14);
}
nav .logo{
  color: #fff;
  font-size: 35px;
  font-weight: 600;
}
nav ul{
  display: flex;
  flex-wrap: wrap;
  list-style: none;
}
nav ul li{
  margin: 0 5px;
}
nav ul li a{
  color: #f2f2f2;
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
  padding: 8px 15px;
  border-radius: 5px;
  letter-spacing: 1px;
  transition: all 0.3s ease;
}
nav ul li a.active,
nav ul li a:hover{
  color: #111;
  background: #fff;
}
nav .menu-btn i{
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  display: none;
}
sub{
  font-size: 40px;
  color: red;
}
input[type="checkbox"]{
  display: none;
}
@media (max-width: 1000px){
  nav{
    padding: 0 40px 0 50px;
  }
}
@media (max-width: 850px) {
  nav .menu-btn i{
    display: block;
  }
  #click:checked ~ .menu-btn i:before{
    content: "\f00d";
  }
  nav ul{
    position: absolute;
    top: 80px;
    left: -100%;
    background: #111;
    height: 100vh;
    width: 100%;
    text-align: center;
    display: block;
    transition: all 0.3s ease;
    z-index: 2;
  }
  #click:checked ~ ul{
    left: 0;
  }
  nav ul li{
    width: 100%;
    margin: 40px 0;
  }
  nav ul li a{
    width: 100%;
    margin-left: -100%;
    display: block;
    font-size: 20px;
    transition: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  }
  #click:checked ~ ul li a{
    margin-left: 0px;
  }
  nav ul li a.active,
  nav ul li a:hover{
    background: none;
    color: cyan;
  }
}
body {
    background-color: #2C5F2D;
  }
  .container {
    width: min(90%, 31.25em);
    position: absolute;
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
    background-color: #97BC62FF;
    padding: 4em 2em;
    border-radius: 0.5em;
    box-shadow: 30px 30px 20px rgba(0,0,0,0.3);
    text-align: center;
  }
  h3 {
    font-size: 1.2em;
    font-weight: 500;
    line-height: 2em;
    color: #303030;
  }
  .input-wrapper {
    width: 70%;
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 1em;
    margin: 3em auto 1.5em auto;
  }
  input[type="number"] {
    width: 100%;
    padding: 1em;
    font-size: 1.2em;
    text-align: center;
    border: 2px solid #adaeae;
    border-radius: 0.3em;
    outline: none;
    appearance: text-field;
    -moz-appearance: textfield;
  }
  input[type="number"]::-webkit-outer-spin-button,
  input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
  }
  input[type="number"]:focus {
    border-color: #2C5F2D;
  }
  button {
    font-size: 1em;
    background-color: #2C5F2D;
    color: #ffffff;
    border: none;
    outline: none;
    border-radius: 0.5em;
    font-weight: 500;
    cursor: pointer;
  }
  #restart {
    margin: 0 auto 0 auto;
    padding: 0.8em 1em;
    display: none;
  }
  .result {
    margin-top: 1em;
  }
  p {
    font-size: 1em;
    font-weight: 400;
    color: #565b70;
    word-break: break-all;
  }
  .error,
  .success {
    padding: 0.5em 0;
    border-radius: 0.3em;
    margin-bottom: 1em;
    animation: pop 0.4s forwards;
    transform: scale(0);
  }
  .error {
    background-color: #ffcbcb;
    color: #ff3e3e;
  }
  .success {
    background-color: #b9ffd5;
    color: #05c451;
  }
  @keyframes pop {
    0% {
      transform: scale(0);
    }
    100% {
      transform: scale(1);
    }
  }