@import url('https://fonts.googleapis.com/css2?family=Martel:wght@200;400;600;800&display=swap');
* {
  font-family: 'Martel', serif;
}

.container-fluid {
  display: flex;
  justify-content: center;
  height: 100vh;
  background: #f6f6f4;
  padding-top: 50px;
}

.inner_box {
  background-color: #DAE5D0;
  padding: 45px 35px;
  box-shadow: 0px 20px 20px 8px rgb(35 70 147 / 10%);
  border: 1px solid #251d3a2e;
}

.inner_box label {
  font-size: 15px;
  font-weight: 600;
  display: block;
  margin-bottom: 3px;
  letter-spacing: 1px;
}

.inner_box h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 40px;
  letter-spacing: 1px;
}

.inner_box input#getNumber,
.inner_box #showResult {
  height: 50px;
  width: 100%;
  display: block;
  border: 0;
  margin-top: 5px;
  background: #fff;
  padding: 0 15px;
  outline: none;
  font-size: 14px;
  letter-spacing: 1px;
  font-weight: 600;
}

.inner_box #showResult {
  height: 100px;
  padding: 7px 15px;
  background: #bac1b4;
  font-size: 20px;
  color: #251D3A;
}

button#convert,
button#reset {
  background: #251D3A;
  color: #fff;
  display: inline-block;
  margin-top: 25px;
  margin-bottom: 25px;
  padding: 12px 25px 9px;
  font-size: 14px;
  transition: 0.5s ease;
  border: 0;
  text-transform: uppercase;
  letter-spacing: 2px;
}

button#convert:hover {
  background: #030206;
}

button#reset {
  background: #6298db;
}

button#reset:hover {
  background: #3a6ba9;
}

span.errorShow {
  width: 100%;
  display: block;
  padding: 5px 15px 3px;
  font-size: 11.5px;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  border-radius: 0.25rem;
  color: #4a070e;
  background-color: #edafb5;
  border-color: #edafb5;
  margin-top: 5px;
  font-weight: 600;
  letter-spacing: 0.6px;
}