body {
    margin: 0;
    padding: 0;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

body.home {
    overflow: hidden;
    color: #ffffff;
}

body.imp {
    color: black;
}

#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 0px 40px;
    box-sizing: border-box;
  
    background: transparent;
    color: black;

    display: flex;
    justify-content: space-between;
    align-items: center;

    z-index: 1000;
    transition: background-color 0.4s ease, box-shadow 0.4s ease;
}

#header.scrolled {  
    background: rgba(27, 27, 27, 0.75); 
    backdrop-filter: blur(12px); 
    color: #c5c5c5; 
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2); 
}

#header a { 
    color: inherit; 
    text-decoration: none; 
    margin-right: 20px; 
    font-weight: 500; 
    font-family: Verdana, Geneva, Tahoma, sans-serif; 
    font-size: large; 
    font-weight: 500;
}

/* Menü */
nav {
    display: flex;
    gap: 30px;
}

nav a {
    position: relative;
    text-decoration: none;
    color: inherit;
    font-size: 18px;
    font-weight: 500;
}

/* animation */
nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

/* MAIN */
main {
    margin-top: 100px;
    min-height: 100vh;
    font-weight: bold;
}

/* CONTAINER */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    box-sizing: border-box;
    font-weight: 100;
    font-size: large;
}

/* TEXT */
h1, p {
    text-align: center;
}
.logo img {
    height: 100px;
}

a.in_text{
    text-decoration: none;
}


/*Video*/
@media (max-width: 600px) {
    .container {
        padding: 0 15px;
    }
}

.video-background {
    position: absolute;
    width: 100%;
    height: 100%;
    max-height: 900px;
    overflow: hidden;
    z-index: -1;
}

.video-background video {
    width: 100%;
    height: 100%;

    object-fit: cover;
}

/*4er Box*/
.front{
    display: flex;
    gap: 20px;
    color: black;
    text-align: center;
    padding: 10%;
    font-weight: 100;
   justify-content: center;
}

.fsub{
    background: rgba(255, 255, 255, 0.349);
    padding: 20px;
    width: 300px;
    height: 150px;
    border-radius: 5px;
    text-decoration: none;
    color: inherit;
}

.fsub img{
    height: 100px;
}

/*button*/
.b1{
    padding: 10px 30px;
    border: 1px outset buttonborder;
    border-radius: 3px;
    color: white;
    background-color: rgb(31, 141, 204);
    text-decoration: none;
    border-radius: 20px;
    font-weight: 800;
    font-family: Verdana, Geneva, Tahoma, sans-serif; 
}

.b1:hover{
    background-color: rgb(26, 114, 165);
}