.btn-preview-dff-shared {
    background-color: #5bc0de;
    border: 1px solid #46b8da;
    color: #fff;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: background-color 0.2s, border-color 0.2s;
    text-align: center;
    box-sizing: border-box;
}

.btn-preview-dff-shared:hover {
    background-color: #31b0d5;
    border-color: #269abc;
}

/* 3D Viewer Modal Styles */
.modal-overlay[id="modelViewerModal"] {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.model-viewer-content {
    position: relative;
    background: #111;
    border: 1px solid #333;
    width: 90%;
    max-width: 1000px;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
}

.model-viewer-content .close-modal {
    position: absolute;
    top: 10px;
    right: 15px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.model-viewer-content .close-modal:hover {
    color: #fff;
    text-decoration: none;
}

.model-viewer-content h3 {
    margin-top: 0;
    color: #ffd700;
    margin-bottom: 15px;
}

.viewer-container {
    width: 100%;
    height: 60vh;
    background-color: #222;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    border: 1px solid #444;
}

.viewer-controls {
    margin-top: 15px;
    color: #ccc;
    font-size: 13px;
    padding: 10px;
    background: #1a1a1a;
    border-radius: 4px;
    border: 1px solid #333;
    box-sizing: border-box;
}

.viewer-buttons {
    margin-top: 10px;
    display: flex;
    gap: 8px;
}

.btn-viewer {
    background-color: #333;
    border: 1px solid #555;
    color: #ccc;
    padding: 5px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

.btn-viewer:hover {
    background-color: #444;
    border-color: #888;
    color: #fff;
}

.inv-3d-btn {
    margin-left: 6px;
    padding: 1px 8px;
    font-size: 10px;
    line-height: 1.5;
    vertical-align: middle;
}

.car-3d-btn {
    width: 100%;
    padding: 5px 10px;
    font-size: 12px;
}