:root{--ink-950:#080a09;--ink-900:#0d100e;--ink-850:#121512;--ink-800:#181c18;--text:#f2f4ec;--muted:#969f91;--line:#e2edd91f;--line-strong:#e2edd93b;--lime:#c9f45c;--lime-soft:#c9f45c1f;--danger:#ff8c7d;--topbar-height:72px;--toolbar-height:72px;color:var(--text);background:var(--ink-950);font-synthesis:none;text-rendering:optimizelegibility;font-family:Inter,Noto Sans Thai,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0;overflow:hidden}body{color:var(--text);background:var(--ink-950)}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}button:focus-visible{outline:2px solid var(--lime);outline-offset:3px}a:focus-visible{outline:2px solid var(--lime);outline-offset:3px}input:focus-visible{outline:2px solid var(--lime);outline-offset:3px}.app-shell{grid-template-columns:minmax(0,1fr);grid-template-rows:var(--topbar-height) minmax(0,1fr) var(--toolbar-height);isolation:isolate;background:radial-gradient(circle at 50% 40%,#c9f45c0e,#0000 36%),linear-gradient(145deg,#101410,#080a09 58%,#0b0e0c);width:100%;max-width:100vw;height:100%;min-height:100dvh;display:grid;overflow:hidden}.topbar{z-index:50;padding:0 max(24px,env(safe-area-inset-left)) 0 max(24px,env(safe-area-inset-right));border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(24px)saturate(135%);backdrop-filter:blur(24px)saturate(135%);background:#080a09c7;grid-template-columns:1fr auto 1fr;align-items:center;display:grid;position:relative}.brand{cursor:pointer;background:0 0;border:0;align-items:center;gap:12px;width:-webkit-max-content;width:-moz-max-content;width:max-content;height:48px;padding:0;display:flex}.brand img{object-fit:contain;width:90px;height:auto;display:block}.brand-divider{background:var(--line-strong);width:1px;height:20px}.brand-product{color:var(--muted);letter-spacing:.22em;font-size:9px;font-weight:700}.document-title{max-width:min(48vw,520px);color:var(--text);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:baseline;gap:10px;padding:9px 14px;transition:background .16s,border-color .16s;display:flex}.document-title:hover{border-color:var(--line);background:#ffffff06}.document-title>span:first-child{text-overflow:ellipsis;white-space:nowrap;letter-spacing:-.01em;font-size:13px;font-weight:600;overflow:hidden}.document-meta{color:var(--muted);white-space:nowrap;font-size:11px}.topbar-actions{justify-self:end;gap:6px;display:flex}.icon-button,.tool-button,.zoom-value{color:#cbd1c6;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:11px;place-items:center;width:42px;height:42px;transition:color 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68px;display:grid}.viewer::-webkit-scrollbar{width:8px;height:8px}.viewer::-webkit-scrollbar-thumb{background:#343b33;border-radius:99px}.ambient-glow{z-index:-1;aspect-ratio:1;pointer-events:none;filter:blur(34px);background:radial-gradient(circle,#c9f45c0b,#0000 66%);border-radius:50%;width:min(76vw,980px);position:fixed}.zoom-surface{flex:none;position:relative}.flipbook-host{transform-origin:0 0;will-change:transform;filter:drop-shadow(0 26px 34px #00000061);perspective:1800px;place-items:center;transition:transform .24s cubic-bezier(.22,.72,.2,1);display:grid;position:absolute;top:0;left:0}.flipbook-engine{transition:transform .34s cubic-bezier(.22,.72,.2,1);transform:translate(0);width:100%!important;height:100%!important;margin:0!important}.flipbook-host.is-zoomed{touch-action:pan-x pan-y}.flipbook-host.is-zoomed .flipbook-engine{pointer-events:none;touch-action:pan-x pan-y!important}.flipbook-host.is-cover-start .flipbook-engine{transform:translate(-25%)}.flipbook-host.is-cover-end .flipbook-engine{transform:translate(25%)}.flipbook-engine .stf__wrapper{width:100%;height:100%;position:relative}.flipbook-engine .stf__block{perspective:2200px}.flip-page{color:#555b52;-webkit-backface-visibility:hidden;backface-visibility:hidden;background:#f4f5ef;line-height:0;position:relative;overflow:hidden;box-shadow:inset 0 0 0 1px #0000000f}.flip-page img{object-fit:fill;-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-user-drag:none;width:100%;height:100%;display:block}.flip-page-placeholder{color:#62685f;background:#f0f1eb;place-items:center;width:100%;height:100%;font-size:12px;line-height:1.5;display:grid}.flip-page-placeholder span{background:linear-gradient(110deg,#e1e2dc 22%,#f7f7f3 42%,#e1e2dc 62%) 0 0/220% 100%;width:100%;height:100%;animation:1.25s linear infinite 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var(--line-strong);-webkit-backdrop-filter:blur(20px)saturate(135%);backdrop-filter:blur(20px)saturate(135%);background:#0e120fe6;border-radius:14px;gap:0;padding:3px;display:flex;position:absolute;top:-52px;left:50%;transform:translate(-50%);box-shadow:0 10px 28px #00000061}.toolbar .zoom-group .tool-button{border-radius:10px;width:36px;height:36px}.toolbar .zoom-group .zoom-value{width:52px;height:36px}.desktop-only{display:none!important}.mobile-only{display:inline-grid}.drawer-backdrop{z-index:70;inset:var(--topbar-height) 0 calc(var(--toolbar-height) + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#0000008c;border:0;display:block;position:fixed}.thumbnail-rail{z-index:80;top:var(--topbar-height);bottom:calc(var(--toolbar-height) + env(safe-area-inset-bottom));border-right:1px solid var(--line);width:min(80vw,280px);min-width:min(80vw,280px);transition:transform 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