.lb-root{--lb-text:var(--on-scrim);--lb-text-muted:color-mix(in srgb, var(--on-scrim) 68%, transparent);--lb-hover:color-mix(in srgb, var(--on-scrim) 16%, transparent);--lb-line:color-mix(in srgb, var(--on-scrim) 14%, transparent);z-index:var(--z-modal);background:color-mix(in srgb, var(--media-bg) 94%, transparent);color:var(--lb-text);font-family:var(--font-family);outline:none;flex-direction:column;animation:.12s ease-out lb-in;display:flex;position:fixed;inset:0}@keyframes lb-in{0%{opacity:0}to{opacity:1}}@media (prefers-reduced-motion:reduce){.lb-root{animation:none}}.lb-header{border-bottom:1px solid var(--lb-line);flex-shrink:0;align-items:center;gap:12px;min-height:56px;padding:8px 12px 8px 16px;display:flex}.lb-file-icon{border-radius:var(--radius-sm);width:36px;height:36px;color:var(--on-file);flex-shrink:0;justify-content:center;align-items:center;display:flex}.lb-titles{flex:1;min-width:0}.lb-name{text-overflow:ellipsis;white-space:nowrap;font-size:15px;font-weight:700;overflow:hidden}.lb-meta{color:var(--lb-text-muted);text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.lb-tools{flex-shrink:0;align-items:center;gap:2px;display:flex}.lb-zoom{align-items:center;gap:2px;margin-right:8px;display:flex}.lb-zoom-value{border-radius:var(--radius-sm);min-width:52px;height:28px;color:var(--lb-text);font:inherit;font-variant-numeric:tabular-nums;cursor:pointer;background:0 0;border:0;padding:0 6px;font-size:13px}.lb-zoom-value:hover{background:var(--lb-hover)}.lb-root .lb-btn{color:var(--lb-text)}.lb-root .lb-btn:hover{background:var(--lb-hover);color:var(--lb-text)}.lb-root .lb-btn:disabled,.lb-root .lb-btn:disabled:hover{color:var(--lb-text);opacity:.35;background:0 0}.lb-root :focus-visible{outline:2px solid var(--lb-text);outline-offset:2px}.lb-stage{flex:1;justify-content:center;align-items:stretch;min-height:0;display:flex;position:relative}.lb-content{flex:1;justify-content:center;align-items:center;min-width:0;min-height:0;padding:16px 64px;display:flex;overflow:hidden}.lb-root .lb-nav{z-index:1;background:var(--scrim-bg);border-radius:50%;width:44px;height:44px;margin-top:-22px;position:absolute;top:50%}.lb-nav-prev{left:12px}.lb-nav-next{right:12px}.lb-imagestage{touch-action:none;justify-content:center;align-items:center;width:100%;height:100%;display:flex;overflow:hidden}.lb-image{object-fit:contain;cursor:zoom-in;-webkit-user-select:none;user-select:none;transform-origin:50%;will-change:transform;max-width:100%;max-height:100%;display:block}.lb-image-zoomed{cursor:grab}.lb-image-zoomed:active{cursor:grabbing}.lb-image-loading{filter:blur(1px)}.lb-video{background:var(--media-bg);border-radius:var(--radius-md);max-width:100%;max-height:100%}.lb-audio,.lb-message{border:1px solid var(--lb-line);border-radius:var(--radius-lg);background:var(--scrim-bg);text-align:center;flex-direction:column;align-items:center;gap:12px;max-width:min(440px,100%);padding:28px;display:flex}.lb-audio audio{width:min(360px,100%)}.lb-audio-icon,.lb-message-icon{border-radius:var(--radius-lg);width:72px;height:72px;color:var(--on-file);justify-content:center;align-items:center;display:flex}.lb-audio-name,.lb-message-name{overflow-wrap:anywhere;font-weight:700}.lb-message-text{color:var(--lb-text-muted);font-size:14px}.lb-message-actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.lb-textbtn{border:1px solid var(--lb-text-muted);border-radius:var(--radius-sm);height:32px;color:var(--lb-text);font:inherit;cursor:pointer;background:0 0;padding:0 14px;font-size:14px;font-weight:700}.lb-textbtn:hover{background:var(--lb-hover)}.lb-textbtn:disabled{opacity:.5;cursor:default}.lb-textbtn-primary{border-color:var(--btn-primary);background:var(--btn-primary);color:var(--on-accent)}.lb-textbtn-primary:hover{background:var(--send-green-hover)}.lb-status{color:var(--lb-text-muted);font-size:14px}.lb-pdf{border-radius:var(--radius-md);background:var(--on-scrim);border:0;width:min(1000px,100%);height:100%}.lb-text{border-radius:var(--radius-md);background:var(--content-bg);width:min(900px,100%);max-height:100%;color:var(--text-primary);text-align:left;overflow:auto}.lb-text pre{font-family:var(--font-mono);white-space:pre-wrap;overflow-wrap:anywhere;tab-size:4;margin:0;padding:16px 20px;font-size:13px;line-height:1.5}.lb-text-empty{color:var(--text-secondary);margin:0;padding:24px}.lb-root .lb-text:focus-visible{outline-offset:-2px;outline-color:var(--focus-ring-color)}.lb-counter{text-align:center;color:var(--lb-text-muted);font-variant-numeric:tabular-nums;flex-shrink:0;padding:6px 0 12px;font-size:13px}@media (width<=760px){.lb-header{gap:8px;padding:6px 6px 6px 12px}.lb-content{padding:8px}.lb-root .lb-nav{margin-top:0;top:auto;bottom:8px}.lb-root .lb-btn.kc-only-phone{display:inline-flex!important}.lb-pdf{border-radius:0}}