body {
  background-repeat: inherit;
  background-attachment: scroll;
  background-size: 120rem;
  background-position-y: -10rem;
  font-family: system-ui;
  margin: 3rem;
  background-color: #131313;
  box-sizing: border-box;
}

/* Sidebar menu */
.sidenav {
  height: 100%;
  width: 190px;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #111;
  overflow-x: hidden;
  padding-top: 20px;
}

.sidenav a {
  padding: 6px 8px 6px 16px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
}

.sidenav a:hover {
  color: #f1f1f1;
}

.main {
  margin-left: 160px;
  padding: 10px;
  max-width: calc(100% - 160px);
}

.tab-content {
  display: none;
}

.default-tab {
  display: block;
}

body:has(:target) .default-tab {
  display: none;
}

.tab-content:target {
  display: block;
}

.tab-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin-top: 10px;
}

@media screen and (max-height: 450px) {
  .sidenav {
    padding-top: 15px;
  }
  .sidenav a {
    font-size: 18px;
  }
}

@media screen and (max-width: 600px) {
  .sidenav {
    width: 100%;
    height: auto;
    position: relative;
  }
  .main {
    margin-left: 0;
    max-width: 100%;
  }
}

mark {
  background-color: rgb(117, 117, 117);
  color: black;
}

.info-box {
  background-color: #0f0f11;
  color: #fff;
  padding: 2rem;
  border-radius: 12px;
  width: fit-content;
  max-width: 95%;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  font-family: system-ui;
}

.important-info-box {
  background-color: #2e2e33;
  color: #fff;
  padding: 2rem;
  border-radius: 12px;
  width: fit-content;
  max-width: 95%;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  font-family: system-ui;
}

.imgs {
  border-radius: 3%;
}

.text2:hover {
  text-decoration: none !important;
}