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

body {
    background-color: #000000;
}

.container {
    width: 100%;
    min-height: 10vh;
    background-color: #000000;
    padding: 10px 5%;
}

nav {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: solid;
    border-bottom-color: rgba(98, 5, 5, 0.61);
}

.logo {
    width: 120px;
    cursor: pointer;
}

nav ul {
    list-style: none;
    width: 100%;
    text-align: right;
    padding-right: 60px;
}

nav ul li {
    display: inline-block;
    margin: 2px 5px;
    --glow-color: rgba(87, 8, 8, 0.78);
    --glow-spread-color: rgba(87, 8, 8, 0.78);
    --enhanced-glow-color: rgb(90, 7, 13);
    --btn-color: rgb(93, 2, 2);
    border: 0.25em solid var(--glow-color);
    padding: 1em 3em;
    color: var(--glow-color);
    font-size: 5px;
    font-weight: bold;
    background-color: var(--btn-color);
    border-radius: 1em;
    outline: none;
    box-shadow: 0 0 1em 0.25em var(--glow-color),
                0 0 4em 1em var(--glow-spread-color),
                inset 0 0 0.75em 0.25em var(--glow-color);
    text-shadow: 0 0 0.5em var(--glow-color);
    position: relative;
    transition: all 0.3s;
}

nav ul li::after {
    pointer-events: none;
    content: "";
    position: absolute;
    top: 120%;
    left: 0;
    height: 70%;
    width: 70%;
    filter: blur(1em);
    opacity: 0.3;
    transform: perspective(1.5em) rotateX(35deg) scale(1, 0.6);
}

nav ul li:hover {
    color: var(--btn-color);
    background-color: var(--glow-color);
    box-shadow: 0 0 1em 0.25em var(--glow-color),
                0 0 1em 2em var(--glow-spread-color),
                inset 0 0 0.75em 0.25em var(--glow-color);
}

nav ul li:active {
    box-shadow: 0 0 0.6em 0.25em var(--glow-color),
                0 0 2.5em 2em var(--glow-spread-color),
                inset 0 0 0.5em 0.25em var(--glow-color);
}

nav ul li a {
    font-size: 15px;
    font-weight: bolder;
    color: #000000;
    text-decoration: none;
}

.banner {
    width: 100%;
    height: 100vh;
    text-align: center;
    overflow: hidden;
    position: relative;
}

.banner .slider {
    position: absolute;
    width: 300px;
    height: 150px;
    top: 10%;
    left: calc(50% - 150px);
    transform-style: preserve-3d;
    transform: perspective(1000px);
    animation: autoRun 45s linear infinite;
    z-index: 2;
}

@keyframes autoRun {
    from {
        transform: perspective(1000px) rotateX(-16deg) rotateY(30deg);
    }
    to {
        transform: perspective(1000px) rotateX(-16deg) rotateY(360deg);
    }
}

.banner .slider .item {
    position: absolute;
    inset: 0 0 0 0;
    transform:
        rotateY(calc((var(--position) - 1) * (360 / var(--quantity)) * 1deg))
        translateZ(400px);
}

.banner .slider .item img {
    width: 108%;
    height: 108%;
    object-fit: cover;
}

.banner .content .model {
    background-image: url(logos/stierchopf%20dunkelrot%20transparent.png);
    width: 100%;
    height: 85vh;
    position: absolute;
    bottom: 0;
    left: 0;
    background-size: auto 60%;
    background-repeat: no-repeat;
    background-position: top center;
    z-index: 1;
}

/* Media Query für Tablets und größere Smartphones */
@media (max-width: 768px) {
    .banner .slider {
        width: 110px;
        height: 60px;
        left: calc(50% - 50px);
    }

    .banner .slider .item {
        transform:
            rotateY(calc((var(--position) - 1) * (360 / var(--quantity)) * 1deg))
            translateZ(130px);
    }

    .banner .slider .item img {
        width: 102%;
        height: 102%;
    }
    .banner .content .model {
        background-size: auto 25%;
    }
}



/* Media Query für sehr kleine Bildschirme */
@media (max-width: 360px) {
    .banner .slider {
        width: 110px;
        height: 60px;
        left: calc(50% - 50px);
    }

    .banner .slider .item {
        transform:
            rotateY(calc((var(--position) - 1) * (360 / var(--quantity)) * 1deg))
            translateZ(130px);
    }

    .banner .slider .item img {
        width: 102%;
        height: 102%;
    }
    .banner .content .model {
        background-size: auto 25%;
    }
}