@charset "utf-8";

body {
  background-color: #1a1a1a;
  color: #fff;
}

:root {
  --cBackground: #fedfe1;
  --cText: #656765;
}

/* ヘッダー */
nav {
  background-color: #333;
  color: #fff;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

li {
  display: inline-block;
}

a {
  display: block;
  padding: 10px;
  text-decoration: none;
  color: #fff;
}

a:hover {
  background-color: #555;
}

/* OSの設定がダークモード時のスタイル */
:root.darkmode {
  --cBackground: #64363c;
  --cText: #fcfaf2;
}

/* OSの設定がダークモード時のスタイル */
@media (prefers-color-scheme: dark) {
  :root {
    --cBackground: #64363c;
    --cText: #fcfaf2;
  }
}

.test {
  width: 100px;
  height: 100px;
  margin: 0 auto;
  background-color: var(--cBackground);
}
.test__text {
  color: var(--cText);
  text-align: center;
  line-height: 100px;
}

/* On/Off FlipSwitch */
.onoffswitch {
  position: relative; width: 90px;
  -user-select: none;
}
.onoffswitch-checkbox {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.onoffswitch-label {
  display: block; overflow: hidden; cursor: pointer;
  border: 2px solid #999999; border-radius: 20px;
}
.onoffswitch-inner {
  display: block; width: 200%; margin-left: -100%;
  transition: margin 0.3s ease-in 0s;
}
.onoffswitch-inner:before, .onoffswitch-inner:after {
  display: block; float: left; width: 50%; height: 30px; padding: 0; line-height: 30px;
  font-size: 14px; color: white; font-family: Trebuchet, Arial, sans-serif; font-weight: bold;
  box-sizing: border-box;
}
.onoffswitch-inner:before {
  content: "LIGHT";
  padding-left: 10px;
  background-color: #34A7C1; color: #FFFFFF;
}
.onoffswitch-inner:after {
  content: "DARK";
  padding-right: 10px;
  background-color: #EEEEEE; color: #999999;
  text-align: right;
}
.onoffswitch-switch {
  display: block; width: 18px; margin: 6px;
  background: #FFFFFF;
  position: absolute; top: 0; bottom: 0;
  right: 56px;
  border: 2px solid #999999; border-radius: 20px;
  transition: all 0.3s ease-in 0s; 
}
.onoffswitch-checkbox:checked + .onoffswitch-label .onoffswitch-inner {
  margin-left: 0;
}
.onoffswitch-checkbox:checked + .onoffswitch-label .onoffswitch-switch {
  right: 0px; 
}