.product-description-content {
    font-size: 15px;
    line-height: 1.8;
    color: #444;
}
.product-description-content p {
    margin-bottom: 15px;
}
.product-description-content h1,
.product-description-content h2,
.product-description-content h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: #222;
    margin-top: 25px;
    margin-bottom: 15px;
    line-height: 1.4;
}
.product-description-content h4,
.product-description-content h5,
.product-description-content h6 {
    font-size: 1.15rem;
    font-weight: 600;
    color: #333;
    margin-top: 20px;
    margin-bottom: 10px;
}
.product-description-content strong,
.product-description-content b {
    font-weight: 600;
    color: #111;
}
.product-description-content ul,
.product-description-content ol {
    margin-bottom: 15px;
    padding-left: 20px;
}
.product-description-content ul li {
    list-style-type: disc;
    margin-bottom: 8px;
}
.product-description-content ol li {
    list-style-type: decimal;
    margin-bottom: 8px;
}
.product-description-content table {
    width: 100%;
    margin-bottom: 20px;
    border-collapse: collapse;
    border-style: hidden;
    box-shadow: 0 0 0 1px #e5e5e5;
    border-radius: 8px;
    overflow: hidden;
}
.product-description-content table th,
.product-description-content table td {
    border: 1px solid #e5e5e5;
    padding: 14px 20px;
    text-align: left;
    vertical-align: middle;
    font-size: 14px;
}
.product-description-content table th,
.product-description-content table td:first-child {
    background-color: #fff;
    font-weight: 600;
    color: #444;
    width: 30%;
}
.product-description-content table td:not(:first-child) {
    font-weight: 400;
    color: #666;
}

/* ===== 3D Viewer / AR Tabs ===== */
.tf-product-media-tabs {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 16px;
    background: #f5f5f5;
    border-radius: 8px;
    padding: 4px;
    width: fit-content;
}

.tf-product-media-tabs .media-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 18px;
    border: none;
    background: transparent;
    color: #777;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.25s ease;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.tf-product-media-tabs .media-tab-btn:hover {
    color: #333;
}

.tf-product-media-tabs .media-tab-btn.active {
    background: #fff;
    color: #111;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.tf-product-media-tabs .media-tab-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* 3D Viewer Container */
.tf-product-3d-viewer {
    display: none;
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    background: linear-gradient(145deg, #fafafa 0%, #f0f0f0 100%);
    border-radius: 4px;
    overflow: hidden;
}

.tf-product-3d-viewer.active {
    display: block;
    animation: fadeInViewer 0.35s ease;
}

@keyframes fadeInViewer {
    from { opacity: 0; transform: scale(0.98); }
    to   { opacity: 1; transform: scale(1); }
}

.tf-product-3d-viewer model-viewer {
    width: 100%;
    height: 100%;
    --poster-color: transparent;
}

/* AR Button (inside model-viewer) */
.tf-ar-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: absolute;
    bottom: 16px;
    right: 16px;
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.25s ease;
    z-index: 10;
    letter-spacing: 0.3px;
}

.tf-ar-button:hover {
    background: rgba(0, 0, 0, 0.95);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.tf-ar-button svg {
    width: 18px;
    height: 18px;
}

/* 3D Viewer Info Badge */
.tf-3d-info-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 50px;
    font-size: 11px;
    font-weight: 600;
    color: #555;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    z-index: 10;
    pointer-events: none;
}

.tf-3d-info-badge svg {
    width: 14px;
    height: 14px;
}

/* Loading / Progress */
.tf-product-3d-viewer model-viewer .progress-bar {
    display: block;
    width: 33%;
    height: 3px;
    max-height: 3px;
    position: absolute;
    left: 50%;
    bottom: 60px;
    transform: translateX(-50%);
    border-radius: 3px;
    overflow: hidden;
    background-color: rgba(0,0,0,0.08);
}

.tf-product-3d-viewer model-viewer .progress-bar.hide {
    visibility: hidden;
    transition: visibility 0.3s;
}

.tf-product-3d-viewer model-viewer .update-bar {
    background-color: #111;
    width: 0%;
    height: 100%;
    border-radius: 3px;
    transition: width 0.15s;
}

/* Fullscreen hint */
.tf-3d-controls-hint {
    position: absolute;
    bottom: 16px;
    left: 16px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 50px;
    font-size: 11px;
    color: #888;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.5s ease;
    z-index: 10;
}

.tf-3d-controls-hint.hidden {
    opacity: 0;
}

/* Gallery hide when 3D active */
.thumbs-slider.hidden-for-3d {
    display: none;
}

/* Desktop AR Hint */
.tf-ar-desktop-hint {
    display: none;
    position: absolute;
    bottom: 16px;
    right: 16px;
    z-index: 10;
}

.tf-ar-desktop-hint-inner {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50px;
    color: rgba(255,255,255,0.9);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.tf-ar-desktop-hint-inner svg {
    flex-shrink: 0;
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 767px) {
    .tf-product-media-tabs {
        width: 100%;
    }

    .tf-product-media-tabs .media-tab-btn {
        flex: 1;
        justify-content: center;
        padding: 10px 14px;
        font-size: 12px;
    }

    .tf-product-3d-viewer {
        aspect-ratio: 1 / 1;
        border-radius: 0;
    }

    .tf-ar-button {
        bottom: 12px;
        right: 12px;
        padding: 8px 16px;
        font-size: 12px;
    }

    .tf-3d-info-badge {
        top: 10px;
        left: 10px;
        padding: 5px 10px;
        font-size: 10px;
    }
}