#main-image {
    object-fit: contain;
    max-height: 600px;
    display: block;
}

#osd-viewer {
    background: #f8f9fa;
    height: 600px;
    min-height: 5em;
    max-height: 70vh;
}

#osd-viewer[style*="aspect-ratio"] {
    height: auto;
}

#osd-viewer.fullpage {
    height: 100%;
    max-height: none;
}

.osd-btn-group {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 10;
    border-radius: 0.375rem;
    border: 1px solid rgba(0, 0, 0, 0.125);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.osd-btn {
    background-color: #fff;
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    color: #495057;
    font-size: 0.875rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease-in-out;
}

.osd-btn:last-child {
    border-bottom: none;
}

.osd-btn:hover {
    background-color: #f8f9fa;
    color: #212529;
}

.osd-btn:active {
    background-color: #e9ecef;
}