:root {
  --drage-page-bg: #eeeeee;
  --drage-page-color: #111111;
  --drage-box-bg: #333333;
  --drage-box-color: #ffffff;
  --drage-fork-bg: #000000bf;
  --drage-fork-color: #ffffff;
  --drage-fork-shadow: 0 0 1px #ffffff;
  --drage-fork-filter: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --drage-page-bg: #333333;
    --drage-page-color: #ffffff;
    --drage-box-bg: aliceblue;
    --drage-box-color: #111111;
    --drage-fork-bg: #ffffff;
    --drage-fork-color: #111111;
    --drage-fork-shadow: 0 0 1px #000000;
    --drage-fork-filter: invert(100%) sepia(100%) saturate(10%) hue-rotate(221deg) brightness(100%) contrast(50%);
  }
}

[data-theme="light"] {
  --drage-page-bg: #eeeeee;
  --drage-page-color: #111111;
  --drage-box-bg: #333333;
  --drage-box-color: #ffffff;
  --drage-fork-bg: #000000bf;
  --drage-fork-color: #ffffff;
  --drage-fork-shadow: 0 0 1px #ffffff;
  --drage-fork-filter: none;
}

[data-theme="dark"] {
  --drage-page-bg: #333333;
  --drage-page-color: #ffffff;
  --drage-box-bg: aliceblue;
  --drage-box-color: #111111;
  --drage-fork-bg: #ffffff;
  --drage-fork-color: #111111;
  --drage-fork-shadow: 0 0 1px #000000;
  --drage-fork-filter: invert(100%) sepia(100%) saturate(10%) hue-rotate(221deg) brightness(100%) contrast(50%);
}

html,
body,
#app {
  width: 100vw;
  height: 100vh;
  padding: 0;
  margin: 0;
  font-family: fangsong;
  font-weight: 300;
  overflow: hidden;
  position: relative;
  z-index: 0;
}

html {
  background-color: var(--drage-page-bg);
  color: var(--drage-page-color);
  color-scheme: light dark;
}

body,
#app {
  background-color: var(--drage-page-bg);
  color: var(--drage-page-color);
}

#watermark_box {
  width: 100vw;
  height: 100vh;
  position: absolute;
  z-index: -1;
  overflow: hidden;
}

.fork {
  width: 40px;
  height: 40px;
  background-image: url("https://skillnull.com/wp-content/themes/basepress/assets/images/icon/github.png");
  background-repeat: no-repeat;
  background-size: calc(100% - 5px) calc(100% - 5px);
  background-position: right 5px top 5px;
  position: fixed;
  right: 0;
  top: 0;
  cursor: pointer;
  z-index: 999999;
  filter: var(--drage-fork-filter);
}

.fork > .text {
  font-size: 12px;
  position: absolute;
  left: -50%;
  top: 40%;
  transform: rotate(45deg) translateY(-50%);
  background: var(--drage-fork-bg);
  width: 180%;
  color: var(--drage-fork-color);
  text-align: center;
  text-shadow: var(--drage-fork-shadow);
}

.drag-box {
  width: 100px;
  height: 100px;
  background: var(--drage-box-bg);
  border-radius: 6px;
  text-align: center;
  cursor: move;
  position: absolute;
  right: 20px;
  bottom: 20px;
  color: var(--drage-box-color);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 99;
  overflow: hidden;
  user-select: none;
}