.image-viewer { position: fixed; inset: 0; width: min(calc(100% - 20px),1100px); max-width: none; height: min(90dvh,1000px); max-height: calc(100dvh - 20px); margin: auto; border: 1px solid var(--color-rule); border-radius: 8px; padding: 0; background: var(--color-paper); color: var(--color-ink); overflow: hidden; font-family: var(--font-body); }
.image-viewer::backdrop { background: var(--color-overlay); }
.image-viewer[open] { display: flex; flex-direction: column; }
.image-viewer [hidden] { display: none !important; }
.image-viewer-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 12px 4px; }
.image-viewer-header h2 { font-size: 17px; line-height: 1.5; font-weight: 600; margin: 0; }
.image-viewer button { flex: none; display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; padding: 8px 12px; font: inherit; font-size: 16px; line-height: 1; white-space: nowrap; border: 1px solid var(--color-rule); border-radius: 4px; background: var(--color-paper); color: var(--color-ink); cursor: pointer; }
.image-viewer button:focus-visible,.image-viewer-scroll:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.image-viewer button:active { transform: translateY(1px); }
.image-viewer button:disabled { opacity: .5; cursor: not-allowed; }
.image-viewer-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 8px 12px 12px; border-bottom: 1px solid var(--color-rule); }
.image-viewer-tools output { min-width: 44px; font-size: 14px; text-align: center; }
.image-viewer-tools > span { width: 100%; font-size: 12px; color: var(--color-muted); }
.image-viewer-status { margin: 16px; color: var(--color-muted); font-size: 14px; }
.image-viewer-scroll { flex: 1; min-height: 0; width: 100%; overflow: auto; overscroll-behavior: contain; background: var(--color-paper); color: var(--color-ink); }
.image-viewer-scroll img { display: block; max-width: none; width: 100%; height: auto; margin: 0; }
@media (hover:hover) { .image-viewer button:not(:disabled):hover { background: var(--color-highlight); } }