body.dark {
  --bg: #111827;
  --text: white;
  --btn: rgb(144, 0, 53);
  --circle: rgb(255, 253, 242);
  --circle-border: #dee2c6;
  --graphics: var(--bg);
}

body {
  --text: #111827;
  --bg: white;
  --btn: rgb(208, 255, 208);
  --circle: #f5ec59;
  --circle-border: #e7c65c;
  --graphics: #c6e9ff;
}

body {
  transition: color 0.2s ease-in-out;
  background-color: var(--bg);
  color: var(--text);
}

button {
  background-color: var(--bg);
  color: var(--text);
}

.radio-btn {
  margin: 20px 0;
  cursor: pointer;
  padding: 5px;
  width: 300px;
  height: 100px;
  background-color: var(--btn);
  outline: none;
  border: none;
  border-radius: 100px;
  overflow: hidden;
  position: relative;
  transition: background-color 0.5s ease-in-out;
}

.circle {
  height: 80px;
  width: 80px;
  border-radius: 100%;
  background-color: var(--circle);
  position: absolute;
  top: 10px;
  left: 10px;
  border: 5px solid var(--circle-border);
  transition: all 0.5s ease-in-out;
}

.dark .circle {
  left: 210px; /* 300px-10px-80px */
}

.graphics {
  position: absolute;
  top: 5px;
  left: 5px;
  right: 5px;
  bottom: 5px;
  background-color: var(--graphics);
  border-radius: 100px;
}

.clouds,
.stars {
  position: absolute;
  top: 20px;
  left: 40px;
}

.cloud {
  background-color: aliceblue;
  width: 25px;
  height: 5px;
  border-radius: 50px;
  position: absolute;
  transition: all 0.3s ease-in-out;
}

.cloud1 {
  top: 20px;
  left: 60px;
  width: 100px;
}

.cloud2 {
  top: 20px;
  left: 200px;
}

.cloud3 {
  top: 40px;
  height: 2px;
  width: 150px;
  left: 60px;
  transition-delay: 0.15s;
}

.cloud4 {
  left: 200px;
  transition-delay: 0.1s;
}

.dark .cloud4 {
  left: 0;
}

.dark .cloud2 {
  left: 0px;
}

.dark .cloud3 {
  left: 0px;
}

.star {
  border-radius: 1px;
  background-color: aliceblue;
  width: 1px;
  height: 1px;
  position: absolute;
  top: 10px;
  left: 10px;
  box-shadow: 1px 1px 10px 1px whitesmoke;
  opacity: 0;
  animation: glow 1s cubic-bezier(0.075, 0.82, 0.165, 1) alternate infinite;
}

.dark .star {
  opacity: 1;
  transition: all 2s ease-in-out;
}

.star1 {
  top: -15px;
  left: 120px;
  animation-delay: 0.2s;
}

.star2 {
  top: 20px;
  left: 50px;
}

.star3 {
  top: 0px;
  left: 55px;
  animation-delay: 0.1s;
}

.star4 {
  top: 10px;
  left: 100px;
  animation-delay: 0.15s;
}

.star5 {
  top: 9px;
  left: 160px;
  animation-delay: 0.4s;
}

.star6 {
  top: -10px;
  left: 82px;
  animation-delay: 0.45s;
}

@keyframes glow {
  0% {
    box-shadow: 1px 1px 10px 1px whitesmoke;
  }
  50% {
    box-shadow: 1px 1px 10px 2px whitesmoke;
  }
  100% {
    box-shadow: 1px 1px 10px 1px whitesmoke;
  }
}