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

body, html {
  height: 100%;
  font-family: Arial, sans-serif;
}

/* Layout mit Sidebar und Main */
.layout {
  display: flex;
  height: 100vh;
}

/* Seitenmenü */
.sidebar {
  width: 220px;
  color: var(--color);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-right: 1px solid var(--border);
  box-shadow: -5px 0px 7px #eee inset;
}

nav{
    margin-top:2rem;
}
.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-color: #efefef;
    transition: background-color 0.2s ease-in-out;
}

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

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

/* Hauptbereich */
.main {
  flex: 1;
  background-color: var(--bg-color);
  padding: 0;
  overflow: hidden;
}

/* Iframe füllt den Hauptbereich */
iframe {
  width: 100%;
  height: 100%;
  border: none;
}