* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body, html {
  height: 100%;
  font-family: Arial, sans-serif;
  background:linear-gradient(180deg,var(--bg-active) 20%, aliceblue 100%);
  background: #244064
}
h1{
    color: white;
    position: absolute;
    left: 2.3rem;
    top: 1.6rem;
    font-size: 2.7rem;
    text-shadow: 0 0 20px var(--bg-active);
}
#logo{
width: 14rem;
  position: absolute;
  right: 3rem;
  top: 1.2rem;
}
/* Layout mit Sidebar und Main */
.layout {
  display: flex;
  height: 100vh;
  height: calc(100% - 3rem);
}

/* Seitenmenü */
.sidebar {
  width: 16rem;
  color: var(--color);
  padding: 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 32px;
  position: relative;  
}
nav{
    margin: 4.5rem 0.6rem 0 0.6rem;
}
.sidebar nav button  {
    color: var(--color);
    font-weight: 700;
    border: none;
    padding: 0.8rem 1rem;
    margin-bottom: 1rem;
    width: 100%;
    text-align: left;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    background: white;
    border: 1px solid white;
}

.sidebar nav button:hover{
  background: var(--bg-active);
  color: var(--color-active);
}

.sidebar nav button.active {
  background: var(--bg-active);
  color: var(--color-active);
}
.info{
    position: absolute;
    bottom: 4rem;
    color: white;
    font-size: 1.1rem;
    line-height: 2rem;
    font-weight: 700;
    text-align: center;
    width: 100%;
    left: 0;
}

/* Hauptbereich */
.main {
  flex: 1;
  border: 1px solid #bbb;;
  margin-top: 6.5rem;
  border-top-left-radius: 0.2rem;
}

iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-top-left-radius: 6px;
}
#top{
    padding: 2.3rem 0 0rem 2.8rem;
    margin-left: -3rem;
    width: 300%;
   height: 134px;
}