.message-image{margin:8px 0;max-width:280px}.message-image img{display:block;max-width:100%;max-height:300px;object-fit:contain;border-radius:10px}.image-fallback{font-size:12px;color:#718096}.message-image a[hidden],.image-fallback[hidden]{display:none}
.image-viewer{position:fixed;inset:0;width:100vw;max-width:none;height:100dvh;max-height:none;margin:0;padding:60px 24px 24px;border:0;background:transparent;color:white;box-sizing:border-box;overflow:hidden}
.image-viewer[open]{display:flex;align-items:center;justify-content:center}.image-viewer::backdrop{background:rgba(12,20,31,.9);backdrop-filter:blur(5px)}
.image-viewer-frame{position:relative;flex:none;max-width:100%}
.image-viewer img{display:block;width:auto;height:auto;max-width:calc(100vw - 48px);max-height:calc(100dvh - 84px);object-fit:contain;border-radius:12px}.image-viewer img[hidden],.image-viewer p[hidden]{display:none}
.image-viewer-close{position:absolute;top:-44px;right:-12px;z-index:1;width:36px;height:36px;padding:0;border:1px solid #ffffff70;border-radius:50%;background:#15202bd9;color:white;font-size:26px;cursor:pointer;box-shadow:0 2px 8px #0004}.image-viewer-close:hover{background:#263749}.image-viewer-close:focus-visible{outline:2px solid white;outline-offset:3px}