/* Image Fallback Styles */
.post-image-wrapper {
    position: relative;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 8px;
    overflow: hidden;
}

.post-image-wrapper img {
    width: 100%;
    height: auto;
    transition: opacity 0.3s ease;
}

.post-image-wrapper img:not([src]),
.post-image-wrapper img[src=""],
.post-image-wrapper img[src*="khunsiiwit.hopto.org"]:not(.loaded) {
    opacity: 0.6;
    filter: grayscale(30%);
}

/* Fallback for broken external images */
.post-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,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') center center no-repeat;
    background-size: 40px 40px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.post-image-wrapper.error::after {
    opacity: 1;
}

/* Loading state */
.post-image-wrapper.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}