body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}
.header {
    background-color: #333;
    color: #fff;
    padding: 10px;
    position: relative;
    display: flex;
    align-items: center;
    height: 25px; /* ヘッダの高さを2/3に設定 */
}
.wrapper {
  display: grid;
}
.wrapper-none {
  display: none !important;
}
.wrapper-hidden {
  visibility: hidden !important;
}
.scroll-hidden {
  overflow-y: hidden;
}
.example {
	font-size: 0.8em;
	vertical-align: top;
}
.hamburger {
    cursor: pointer;
    margin: 0 10px;
}
.hamburger span {
    display: block;
    width: 20px;
    height: 3px;
    background-color: #fff;
    margin: 4px 0;
}
.sidebar {
    position: fixed;
    width: 0;
    height: 100vh;
    top: 0;
    left: 0;
    background-color: rgb(250, 250, 250); /* サイドメニューの色をrgb(250, 250, 250)に設定 */
    overflow-x: hidden;
    transition: 0.1s;
    padding-top: 60px;
}
.sidebar a {
    padding: 8px 8px 8px 32px;
    text-decoration: none;
    font-size: 14px; /* サイドメニューのフォントサイズを14pxに設定 */
    color: #000;
    display: block;
    transition: 0.3s;
}
.sidebar a:hover {
    color: blue; /* 選択されているサイドメニューのリンクのフォントを青色に設定 */
}
#menu-checkbox {
    display: none;
}
#menu-checkbox:checked ~ .sidebar {
    width: 400px;
}
#menu-checkbox:checked ~ .main {
    margin-left: 400px;
}

#correct-checkbox {
  display: none;
}

#correct-checkbox:checked ~ .correct-wrapper {
  visibility: visible !important;
}

#tree,#tree2 {
    background-color: #1e1e1e !important;
    font-size: 14px;
    border-right: solid 1px #a9a9a9;
}
  ul {
    list-style-type: none;
    padding-left: 20px;
    font-family: Consolas, "Courier New", monospace;
    color: rgb(212,212,212);
  }
  li {
    line-height: 22px;
    font-family: Consolas, "Courier New", monospace;
    color: rgb(212,212,212);
    position: relative;
  }
  .folder::before {
    content: "📁";
    margin-right: 5px;
    font-size: 0.95em;
  }
  .file::before {
    content: "📄";
    margin-right: 5px;
    font-size: 0.95em;
  }
  .active {
    background-color: rgb(240, 240, 240, 0.2);
  }

  #outputLabel {
    background-color: #1e1e1e; 
    color: #ffffff; 
    border-top: solid 1px #a9a9a9;
    padding-left: 20px;
  }

  #title {
    font-weight: bold;
    font-size: 20px;
  }

/* HTML: <div class="loader"></div> */
.loader {
  width: 50px;
  padding: 8px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #000;
  --_m: 
    conic-gradient(#0000 10%,#000),
    linear-gradient(#000 0 0) content-box;
  -webkit-mask: var(--_m);
          mask: var(--_m);
  -webkit-mask-composite: source-out;
          mask-composite: subtract;
  animation: l3 1s infinite linear;
}
@keyframes l3 {to{transform: rotate(1turn)}}

.loader-flame {
  position: fixed;
  width: 100vw;
  height: 100vh;
  top: 0px;
  left: 0px;
  z-index: 1;
}

.loader-item {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}