.slideshow-container {
    margin-top: 0;
    margin-bottom: 2rem;
    width: 100%;
}

.slideshow-viewport {
    width: 100%;
    aspect-ratio: 1816 / 1938;
    border-radius: 1rem;
    overflow: hidden;
    background-color: #f8f9fa;
    position: relative;
    border: 1px solid #eee;
}

.slideshow-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.slideshow-image.active {
    opacity: 1;
}

.slideshow-caption {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #666;
    text-align: center;
}

.slideshow-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
}

.slideshow-status {
    font-size: 1rem;
    color: #444;
    min-width: 4rem;
    text-align: center;
}

.slideshow-button {
    width: 2rem;
    height: 2rem;
    border-radius: 0.5rem;
    border: 1px solid #d1d5db;
    background-color: #ffffff;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #4b5563;
    transition: background-color 0.2s, box-shadow 0.2s;
    padding: 0;
}

.slideshow-button:hover {
    background-color: #f9fafb;
}

.slideshow-button svg {
    width: 1rem;
    height: 1rem;
    fill: currentColor;
}

/* ダークモード対応 */
html .dark .slideshow-viewport {
    background-color: #1a1a1a;
    border-color: #333;
}

html .dark .slideshow-button {
    background-color: #2d2d2d;
    border-color: #444;
    color: #ccc;
}

html .dark .slideshow-button:hover {
    background-color: #3d3d3d;
}

html .dark .slideshow-status,
html .dark .slideshow-caption {
    color: #aaa;
}