:root{--bg: #f6f2ea;--panel: rgba(255, 255, 255, .94);--ink: #141210;--muted: #5a5652;--stroke: #e1d9cc;--accent: #14524b;--accent-2: #e26d5c;--shadow: 0 18px 50px rgba(0, 0, 0, .07);--rounded: 12px;color-scheme:light}html,body,#root{height:100%;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.appRoot{height:100%;position:relative;background:var(--bg);color:var(--ink)}.readerShell{position:relative;height:100%;width:100%;overflow:hidden;transition:opacity .2s ease}.readerShellHidden{opacity:0;pointer-events:none}.readerViewport{position:absolute;inset:0}.tapOverlay{position:absolute;inset:0;background:transparent;z-index:10;touch-action:none}.chrome{pointer-events:none}.chromeVisible{pointer-events:auto}.topBar,.bottomBar{position:absolute;left:0;right:0;z-index:20;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(120,120,140,.18)}.topBar{top:0;height:54px;display:flex;align-items:center;padding:0 12px;transform:translateY(-110%);transition:transform .18s ease}.chromeVisible .topBar{transform:translateY(0)}.topTitle{flex:1;text-align:center;font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0 10px}.topActions{display:flex;gap:8px}.appTopBar{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 12px;border-bottom:1px solid var(--stroke);background:var(--panel)}.appTitle{font-weight:700;font-size:15px;color:var(--ink)}.bottomBar{bottom:0;padding:10px 12px 14px;transform:translateY(110%);transition:transform .18s ease;border-top:1px solid rgba(120,120,140,.18);border-bottom:0}.chromeVisible .bottomBar{transform:translateY(0)}.progressRow{display:flex;align-items:center;gap:10px;margin-bottom:8px}.progressLeft{font-size:12px;font-weight:600;width:52px}.progressCenter{font-size:12px;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.scrubber{width:100%}.iconBtn{appearance:none;border:1px solid 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