body {
  background-color: black;
  color: white;
  font-family: Arial, sans-serif;
  text-align: center;
  transition: background-color 0.3s ease;
}

.circle {
  position: absolute;
  width: 50px;
  height: 50px;
  background-color: rgb(255, 255, 255);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  mix-blend-mode: difference;
  transition: all 0.15s ease;
}

/* a href links */
a:link {
  color: white;
  background-color: transparent;
  text-decoration: none;
}

a:visited {
  color: white;
  background-color: transparent;
  text-decoration: none;
}

a:hover {
  color: lightgray;
  background-color: transparent;
  text-decoration: none;
}

a:active {
  color: yellow;
  background-color: transparent;
  text-decoration: none;
}

#content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 48px;
}

.cursor {
  display: inline-block;
  animation: blink 0.7s infinite;
  margin-left: -10px;
}

.dark-mode {
  background-color: white;
  color: black;
}

@keyframes blink {

  0%,
  100% {
    opacity: 0;
  }

  50% {
    opacity: 1;
  }
}

/* Toggle switch styling */
.toggle-container {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
}

.toggle-container input[type="checkbox"] {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
  background-color: #ccc;
  border-radius: 34px;
  transition: background-color 0.3s ease;
}

.toggle-slider:before {
  content: "";
  position: absolute;
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: black;
  border-radius: 50%;
  transition: transform 0.3s ease;
}

input[type="checkbox"]:checked+.toggle-slider {
  background-color: #2196F3;
}

input[type="checkbox"]:checked+.toggle-slider:before {
  transform: translateX(26px);
}

/* button-85 CSS */
.button-85 {
  padding: 0.6em 2em;
  border: none;
  outline: none;
  color: rgb(255, 255, 255);
  background: #111;
  cursor: pointer;
  position: relative;
  display: inline-block;
  z-index: 0;
  border-radius: 10px;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-85:before {
  content: "";
  background: linear-gradient(45deg,
      #ff0000,
      #ff7300,
      #fffb00,
      #48ff00,
      #00ffd5,
      #002bff,
      #7a00ff,
      #ff00c8,
      #ff0000);
  position: absolute;
  display: inline-block;
  top: -2px;
  left: -2px;
  background-size: 400%;
  z-index: -1;
  filter: blur(5px);
  -webkit-filter: blur(5px);
  width: calc(100% + 4px);
  height: calc(100% + 4px);
  animation: glowing-button-85 20s linear infinite;
  transition: opacity 0.3s ease-in-out;
  border-radius: 10px;
}

@keyframes glowing-button-85 {
  0% {
    background-position: 0 0;
  }

  50% {
    background-position: 400% 0;
  }

  100% {
    background-position: 0 0;
  }
}

.button-85:after {
  z-index: -1;
  content: "";
  position: absolute;
  display: inline-block;
  width: 100%;
  height: 100%;
  background: #222;
  left: 0;
  top: 0;
  border-radius: 10px;
}

/* popup container */
.popup-container {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 9999;
}

.popup-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: white;
  padding: 20px;
  border-radius: 5px;
}

.popup-form input[type="text"],
.popup-form textarea {
  width: 100%;
  margin-bottom: 10px;
}

.popup-form button {
  margin-right: 5px;
}

/* End of toggle switch styling */