.input-wrapper {
  position: relative;
  display: none;
  width: 300px;
  border-bottom: 4px solid rgba(0, 0, 0, 0.2);
  margin-bottom: 35px;
}

#guess_input {
  display: block;
  width: 100%;
  border: none;
  box-sizing: border-box;
  padding: 4px 10px;
  color: rgba(0, 0, 0, 0.4);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 3px;
  background-color: transparent;
  caret-color: transparent;
}

#guess_input:focus {
  outline: none;
}

.custom-caret {
  position: absolute;
  top: 50%;
  left: 10px;
  transform: translateY(-50%);
  width: 3px; 
  height: 1.5em; 
  background-color: rgba(0, 0, 0, 0.2);
  pointer-events: none;
  transition: left 0.1s ease;
}