style.css

* {
  font-family: "Noto sans", sans-serif;
  box-sizing: border-box;
}

body {
  padding: 8px;
  background: #212121;
  color: #ffffff;
}

input {
  height: 40px;
  border: 0px solid gray;
  border-radius: 15px;
  width: 325px;
  background: #323232;
  display: table-cell;
  text-align: center;
  color: #FFF;
  font-size: 17px;
  padding-left: 10px;
  padding-right: 10px;
}

button {
  height: 40px;
  border: 0px solid gray;
  border-radius: 15px;
  width: 80px;
  background: #434343;
  display: table-cell;
  text-align: center;
  color: #777;
  font-size: 17px;
}

.input-area {
  display: flex;
  gap: 10px;
}

p {
  color: #777;
  font-size: 17px;
}

.error {
  color: #FF0000;
  font-weight: bold;
}

.top-left {
  position: fixed;
  top: 0px;
  left: 0px;
  padding: 20px;
}

.name {
  font-size: 22px;
}

.version {
  font: bold 14px monospace;
}

.top-right {
  position: fixed;
  top: 10px;
  right: 0px;
  padding: 5px 10px;
  display: flex;
  gap: 15px;
}

.center {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 500px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: center;
  transform: translate(-50%, -50%);
  align-items: center;
}

svg {
  color: white;
  filter: brightness(0) invert(1);
  margin: 1px;
  width: 30px;
  height: 30px;
  cursor: pointer;
  transition: transform 250ms;
}

svg:hover {
  transform: scale(1.2);
}

#move {
  cursor: move;
}

::placeholder {
  color: #777;
}