.image-fixed-bottom {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 40svh;
    min-height: 120px;
    max-height: 400px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 11;
    background: transparent;
    /* Dynamische Bildgröße als CSS-Variable für Halbkreis und Bild */
    --image-size: min(70vw, 38svh);
}
.image-fixed-bottom .white-semicircle {
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: calc(1.4 * var(--image-size));
    height: calc(0.7 * var(--image-size));
    background: white;
    border-radius: 100vw 100vw 0 0;
    z-index: 1;
    pointer-events: none;
    box-shadow: 0 8px 32px 0 rgba(0,0,0,0.08);
}
.image-fixed-bottom .image {
    max-width: var(--image-size);
    max-height: 38svh;
    object-fit: contain;
    aspect-ratio: 1/1;
    position: relative;
    z-index: 2;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 15%, black 85%, transparent 100%);
    mask-image: linear-gradient(to right, transparent 0%, black 15%, black 85%, transparent 100%);
}
.image-fixed-bottom img:not(.image) {
    max-width: unset;
    max-height: unset;
    aspect-ratio: unset;
    object-fit: unset;
    -webkit-mask-image: none;
    mask-image: none;
}
/* Mobile First: Standard für kleine Geräte */
.nav-icon {
    position: absolute;
    bottom: 8px;
    width: 48px;
    height: 48px;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    box-shadow: none;
    border-radius: 0;
    transition: none;
    padding: 0;
}
.nav-icon img {
    width: 28px;
    height: 28px;
    object-fit: cover;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.10);
    border: 1.5px solid #e5e5e7;
    background: #f8f8fa;
}
.nav-icon-left {
    left: 8px;
}
.nav-icon-right {
    right: 8px;
}
/* Tablet */
@media (min-width: 600px) {
    .image-fixed-bottom .image {
        max-width: 90vw;
    }
    .nav-icon {
        width: 56px;
        height: 56px;
        bottom: 12px;
        padding: 0;
    }
    .nav-icon img {
        width: 36px;
        height: 36px;
        border-radius: 12px;
    }
    .nav-icon-left {
        left: 16px;
    }
    .nav-icon-right {
        right: 16px;
    }
}
/* Desktop */
@media (min-width: 900px) {
    .image-fixed-bottom .image {
        max-width: var(--image-size);
    }
    .nav-icon {
        width: 64px;
        height: 64px;
        bottom: 18px;
        padding: 0;
    }
    .nav-icon img {
        width: 44px;
        height: 44px;
        border-radius: 18px;
    }
    .nav-icon-left {
        left: calc(50% - var(--image-size)/2 - 70px);
    }
    .nav-icon-right {
        right: calc(50% - var(--image-size)/2 - 70px);
    }
}
.white-semicircle {
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 70vw;
    max-width: 630px;
    height: 40vw;
    max-height: 340px;
    background: white;
    border-radius: 35vw 40vw 0 0;
    z-index: 1;
    pointer-events: none;
}
@keyframes wiggle {
    0% { transform: rotate(0deg); }
    15% { transform: rotate(-10deg); }
    30% { transform: rotate(10deg); }
    45% { transform: rotate(-8deg); }
    60% { transform: rotate(8deg); }
    75% { transform: rotate(-4deg); }
    90% { transform: rotate(4deg); }
    100% { transform: rotate(0deg); }
}
.nav-icon img:hover {
    animation: wiggle 0.6s cubic-bezier(.36,.07,.19,.97) both;
}