:root{color-scheme:light;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--bg: #eef1f0;--paper: #fffaf1;--surface: #ffffff;--surface-soft: #f4f6f5;--text: #1d211f;--muted: #667069;--border: #d8ded9;--accent: #286c59;--accent-strong: #17483b;--danger: #b42318;--success: #1d7a4d;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}*{box-sizing:border-box}html,body,#root{width:100%;min-width:320px;height:100%;margin:0}body{overflow:hidden;background:var(--bg)}button{font:inherit}button:disabled{cursor:not-allowed;opacity:.45}.reader-app{width:100%;height:100dvh;display:grid;grid-template-columns:280px minmax(0,1fr) 320px;background:var(--bg);color:var(--text)}.reader-app.night{color-scheme:dark;--bg: #151816;--paper: #20241f;--surface: #1b201d;--surface-soft: #252b27;--text: #edf1ea;--muted: #a8b0aa;--border: #343c36;--accent: #80c7a8;--accent-strong: #a2dec4}.library-rail,.status-rail{min-height:0;overflow:auto;padding:calc(18px + var(--safe-top)) 18px calc(18px + var(--safe-bottom));border-color:var(--border);background:color-mix(in srgb,var(--surface) 88%,transparent)}.library-rail{border-right:1px solid var(--border)}.status-rail{border-left:1px solid var(--border)}.brand-block,.reader-topline,.panel-title,.reader-actions,.panel-actions,.version-cluster,.network-chip,.tag-row,.book-masthead{display:flex;align-items:center}.brand-block{gap:12px;margin-bottom:18px}.brand-mark,.book-cover-mini,.cover-art{display:grid;place-items:center;color:#fff;background:#2f6f5e}.brand-mark{width:42px;height:42px;border-radius:8px}.eyebrow,h1,h2,h3,p{margin:0}.eyebrow{color:var(--accent);font-size:12px;font-weight:760;text-transform:uppercase}h1{font-size:22px;line-height:1.1}.network-chip{min-height:36px;margin-bottom:18px;padding:0 12px;gap:8px;border:1px solid var(--border);border-radius:8px;color:var(--success);background:var(--surface-soft)}.network-chip.offline{color:var(--danger)}.book-list{display:grid;gap:8px}.book-row{width:100%;min-height:68px;padding:10px;display:grid;grid-template-columns:44px minmax(0,1fr);gap:10px;border:1px solid transparent;border-radius:8px;color:inherit;text-align:left;background:transparent}.book-row.active,.book-row:hover{border-color:var(--border);background:var(--surface-soft)}.book-cover-mini{width:44px;height:48px;border-radius:6px;font-weight:800}.book-row strong,.toc-list strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.book-row small{color:var(--muted)}.reading-stage{min-width:0;min-height:0;overflow:auto;padding:calc(20px + var(--safe-top)) clamp(18px,4vw,54px) calc(24px + var(--safe-bottom))}.reader-topline{justify-content:space-between;gap:16px;margin-bottom:14px}.status-text,.subtitle,.chapter-head span,.chapter-head p,.side-panel p,.status-list dt{color:var(--muted)}.version-cluster{flex-wrap:wrap;justify-content:flex-end;gap:8px}.version-cluster span,.tag-row span{min-height:28px;padding:0 9px;display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:999px;color:var(--muted);background:var(--surface);font-size:12px}.notice-strip{min-height:42px;margin-bottom:14px;padding:10px 12px;display:flex;align-items:center;gap:10px;border:1px solid #e4c76a;border-radius:8px;color:#654b03;background:#fff6d9}.reader-document{max-width:840px;margin:0 auto;padding:clamp(22px,4vw,54px);border:1px solid var(--border);border-radius:8px;background:var(--paper);box-shadow:0 18px 46px #212a2317}.book-masthead{align-items:stretch;gap:18px;padding-bottom:22px;border-bottom:1px solid var(--border)}.cover-art{width:118px;aspect-ratio:3 / 4;flex:0 0 auto;border-radius:8px;font-size:48px;font-weight:850}.book-masthead h2{margin:4px 0 8px;font-size:clamp(28px,5vw,46px);line-height:1.08;letter-spacing:0}.tag-row{flex-wrap:wrap;gap:6px;margin-top:12px}.chapter-head{padding:26px 0 12px}.chapter-head h3{margin:4px 0 6px;font-size:clamp(24px,4vw,36px);line-height:1.16}.chapter-body{font-size:calc(18px * var(--reader-scale, 1));line-height:2}.chapter-body p+p{margin-top:1.1em}.reader-actions,.panel-actions{gap:10px;margin-top:22px}.reader-actions button,.panel-actions button{min-height:40px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:8px;color:#fff;background:var(--accent)}.empty-reader{min-height:320px;display:grid;place-items:center;gap:10px;color:var(--muted)}.side-panel{padding:14px;border:1px solid var(--border);border-radius:8px;background:var(--surface)}.side-panel+.side-panel{margin-top:12px}.panel-title{gap:8px;margin-bottom:12px}.panel-title h2{font-size:16px}.progress-ring{width:120px;aspect-ratio:1;margin:0 auto 10px;display:grid;place-items:center;border-radius:50%;background:conic-gradient(var(--accent) var(--progress),var(--surface-soft) 0)}.progress-ring span{width:86px;aspect-ratio:1;display:grid;place-items:center;border-radius:50%;background:var(--surface);font-weight:800}.toc-list{max-height:280px;overflow:auto;display:grid;gap:6px}.toc-list button{min-height:42px;padding:8px;display:grid;grid-template-columns:28px minmax(0,1fr);gap:8px;border:1px solid transparent;border-radius:8px;color:inherit;text-align:left;background:transparent}.toc-list button.active,.toc-list button:hover{border-color:var(--border);background:var(--surface-soft)}.toc-list span{color:var(--accent);font-weight:760}.status-list{margin:0;display:grid;gap:10px}.status-list div{display:grid;grid-template-columns:74px minmax(0,1fr);gap:8px}.status-list dt,.status-list dd{margin:0}.mobile-controls{display:none}@media(max-width:1120px){.reader-app{grid-template-columns:230px minmax(0,1fr)}.status-rail{display:none}}@media(max-width:760px){body{overflow:auto}.reader-app{min-height:100dvh;height:auto;display:block;padding-bottom:calc(74px + var(--safe-bottom))}.library-rail{display:none}.reading-stage{min-height:100dvh;padding:calc(12px + var(--safe-top)) 12px 16px}.reader-topline{align-items:flex-start}.version-cluster{max-width:160px}.reader-document{min-height:calc(100dvh - 110px - var(--safe-top) - var(--safe-bottom));padding:18px;border-radius:0;border-left:0;border-right:0}.book-masthead{display:block}.cover-art{width:72px;margin-bottom:12px;font-size:28px}.book-masthead h2{font-size:30px}.chapter-body{font-size:calc(17px * var(--reader-scale, 1));line-height:1.9}.reader-actions{display:none}.mobile-controls{min-height:calc(62px + var(--safe-bottom));padding:8px 10px calc(8px + var(--safe-bottom));position:fixed;inset-inline:0;bottom:0;z-index:20;display:grid;grid-template-columns:repeat(8,minmax(34px,1fr));gap:6px;border-top:1px solid var(--border);background:color-mix(in srgb,var(--surface) 94%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.mobile-controls button{min-width:0;min-height:42px;display:grid;place-items:center;border:1px solid var(--border);border-radius:8px;color:var(--text);background:var(--surface-soft)}}