:root{--bg: #1b1c1e;--bg-2: #232427;--bg-3: #2c2d31;--line: #3a3b40;--text: #e6e6e8;--muted: #9b9ca3;--accent: #f2c230;--accent-ink: #1b1c1e;--ok: #58c27d;--warn: #f09a3e;--radius: 8px;--panel-w: 320px;color-scheme:dark}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:13px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:hidden}button,input,select{font:inherit;color:inherit}.muted{color:var(--muted)}.small{font-size:12px}.spacer{flex:1}[hidden]{display:none!important}.topbar{height:48px;display:flex;align-items:center;gap:12px;padding:0 14px;border-bottom:1px solid var(--line);background:var(--bg-2)}.brand{display:flex;align-items:center;gap:8px;font-weight:650;letter-spacing:.2px}#folder-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:30vw}.btn{border:1px solid var(--line);background:var(--bg-3);border-radius:6px;padding:6px 12px;cursor:pointer;white-space:nowrap}.btn:hover:not(:disabled){border-color:#55565d;background:#34353a}.btn:disabled{opacity:.45;cursor:default}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}.btn.primary:hover:not(:disabled){background:#ffd24a;border-color:#ffd24a}.btn.ghost{background:transparent}.btn.small{padding:4px 9px;font-size:12px}.btn.active{border-color:var(--accent);color:var(--accent)}.link{background:none;border:0;padding:0;color:var(--accent);cursor:pointer;text-decoration:underline}.icon-btn{width:30px;height:28px;border:1px solid transparent;background:transparent;border-radius:6px;cursor:pointer;font-size:18px;line-height:1}.icon-btn:hover{background:var(--bg-3);border-color:var(--line)}.switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;user-select:none}.switch input{position:absolute;opacity:0;pointer-events:none}.switch 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16px}.status{position:absolute;left:50%;bottom:14px;transform:translate(-50%);background:#000c;padding:6px 12px;border-radius:16px;font-size:12px;display:flex;align-items:center;gap:8px}.status.busy:before{content:"";width:10px;height:10px;border-radius:50%;border:2px solid var(--muted);border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.badge{position:absolute;top:12px;left:12px;background:#000b;padding:3px 9px;border-radius:4px;font-size:12px;color:var(--accent)}.viewer-bar{display:flex;align-items:center;gap:4px;padding:4px 10px;border-top:1px solid var(--line);background:var(--bg-2)}.compare-group{display:inline-flex;align-items:center;gap:4px}.compare-group select{padding:3px 6px;font-size:12px}.viewer-bar .sep{width:1px;height:18px;background:var(--line);margin:0 6px}.current-name{display:inline-flex;align-items:baseline;gap:8px;flex-shrink:0;margin:0 6px}.current-name .file{font-size:15px;font-weight:600;color:var(--text);white-space:nowrap}.current-name .pos{font-size:12px;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}#image-info{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.filmstrip{height:118px;display:flex;gap:6px;overflow-x:auto;overflow-y:hidden;padding:8px 10px;border-top:1px solid var(--line);background:var(--bg-2);scrollbar-width:thin}.thumb-item{position:relative;flex:0 0 auto;width:128px;height:100px;border-radius:6px;border:2px solid transparent;background:var(--bg-3);cursor:pointer;overflow:hidden;padding:0}.thumb-item img{width:100%;height:84px;object-fit:contain;display:block;background:#111}.thumb-item .name{display:block;font-size:11px;line-height:14px;color:var(--muted);text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 4px}.thumb-item.current{border-color:var(--accent)}.thumb-item 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