:root{font-family:Arial,Helvetica,sans-serif;color:#d7deea;background:#101b2e;color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-height:100dvh;display:flex;flex-direction:column;background:radial-gradient(ellipse at 50% 50%,#263d59 0%,#152238 53%,#0d1729 100%)}button,a,input{-webkit-tap-highlight-color:transparent}button,a{color:inherit}button{font:inherit;cursor:pointer;background:none;border:0}button:disabled{opacity:.22;cursor:default}button:hover:not(:disabled),footer a:hover{color:#fff;background:#ffffff12}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid #f79723;outline-offset:4px}header{height:88px;padding:0 4%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ffffff0c}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:25px;font-weight:800;letter-spacing:1px;color:#fff}.mark{font-size:35px;font-style:italic;color:#198aff;position:relative}.mark span{color:#f79723;font-size:25px;position:absolute;right:-2px;top:-6px}.brand i{height:22px;width:1px;background:#ffffff26;margin:0 10px}.brand small{font-size:9px;letter-spacing:2px;font-weight:400;color:#91a0b7}.edition{font-size:10px;letter-spacing:2px;color:#95a6bf}.edition b{margin-left:12px;color:#f6a249}header button{border:1px solid #ffffff20;border-radius:6px;padding:10px 15px;font-size:13px}main{flex:1;display:flex;flex-direction:column;justify-content:center;padding:18px 3% 24px;min-height:0}.intro{text-align:center;margin:0 0 22px}.intro>span{font-size:9px;letter-spacing:3px;color:#7d92af}.intro p{font-size:16px;font-weight:400;letter-spacing:.3px;color:#c7d2e2;margin:10px 0 0}.reader{display:flex;align-items:center;gap:22px}.arrow{font-size:36px;flex:0 0 44px;height:52px;border:1px solid #ffffff1c;border-radius:50%;line-height:30px}#viewport{flex:1;min-width:0;overflow:visible;padding:8px 0;display:flex;justify-content:center;align-items:center;min-height:200px}#book{width:min(100%,1120px,calc((100dvh - 300px)*16/9));aspect-ratio:16/9;position:relative;perspective:2200px;filter:drop-shadow(0 24px 26px #0007);outline:0;touch-action:pan-y;transition:width .3s}#pages{position:absolute;inset:0;display:flex;background:#e9edf3;border-radius:2px;overflow:hidden;box-shadow:3px 4px 0 #c0c5cc,6px 7px 0 #8793a4}#pages img{display:block;width:100%;height:100%;object-fit:contain;background:#fff;user-select:none;-webkit-user-drag:none}#book.spread{width:min(100%,1440px,calc((100dvh - 300px)*32/9));aspect-ratio:32/9}#book.spread #pages img{width:50%}#book.spread #pages:after{content:'';position:absolute;inset:0 auto 0 50%;width:20px;transform:translateX(-50%);background:linear-gradient(90deg,transparent,#0002,transparent);pointer-events:none}#turner{position:absolute;inset:0;transform-style:preserve-3d;transform-origin:left center;pointer-events:none}#turner img{width:100%;height:100%;object-fit:contain;backface-visibility:hidden;background:#fff}#turner:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#0003,transparent 30%);opacity:0}#turner.turning:after{opacity:1}.below{display:flex;justify-content:space-between;margin:20px 66px 0;color:#8092ac;font-size:11px}.hint{letter-spacing:.3px}#status{font-variant-numeric:tabular-nums}footer{height:74px;margin:0 4%;display:flex;align-items:center;justify-content:space-between;border-top:1px solid #ffffff12;gap:12px}footer button,footer a{height:36px;min-width:36px;display:inline-flex;align-items:center;justify-content:center;border-radius:5px;text-decoration:none;font-size:20px}.tools{display:flex;align-items:center;gap:6px;flex:1}.end{justify-content:flex-end}.divider{height:18px;width:1px;background:#ffffff20;margin:0 8px}#zoom{font-size:11px;min-width:45px}.pagination{display:flex;align-items:center;gap:12px}.pagination label{font-size:12px;color:#788da9}.pagination input{background:#ffffff0a;border:1px solid #ffffff20;color:#fff;text-align:center;width:44px;border-radius:4px;padding:7px;font:inherit;appearance:textfield}.pagination input::-webkit-inner-spin-button{display:none}.progress{height:3px;background:#ffffff09}.progress div{height:100%;background:#f79824;transition:width .5s}dialog{width:min(950px,94vw);max-height:86dvh;border:1px solid #ffffff20;border-radius:14px;background:#142238;color:#e5edfa;padding:28px}dialog::backdrop{background:#061020c9;backdrop-filter:blur(8px)}.dialogHead{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.dialogHead small{font-size:10px;letter-spacing:2px;color:#f7a547}h2{font-size:24px;margin:8px 0 0}.dialogHead button{font-size:30px}#thumbnails{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}#thumbnails button{padding:0;text-align:left}#thumbnails img{width:100%;border-radius:3px;display:block;border:2px solid transparent}#thumbnails button.active img{border-color:#f79824}#thumbnails span{display:block;font-size:11px;color:#a0aec3;padding:8px 0}#toast{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);background:#edf3fc;color:#17263c;padding:12px 20px;border-radius:8px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s}#toast.show{opacity:1}#viewport.zoomed{overflow:auto;justify-content:flex-start}#viewport.zoomed #book{flex-shrink:0;transform-origin:0 0}.playing{color:#ffa540!important}@media(max-width:700px){header{height:70px}.brand{font-size:20px}.brand small,.brand i,.edition{display:none}header button span{display:none}.intro{margin-bottom:24px}.intro p{font-size:13px}.reader{gap:7px}.arrow{flex-basis:28px;height:38px;font-size:26px}.below{margin:22px 36px 0;font-size:10px}.hint{max-width:170px;line-height:1.5}main{padding:20px 10px}footer{margin:0 12px;height:68px;gap:3px}.tools{gap:1px}footer button,footer a{min-width:30px;font-size:18px}.divider{margin:0 3px}.pagination{gap:0}#zoom{min-width:36px;font-size:10px}#layout{display:none}#thumbnails{grid-template-columns:repeat(2,1fr)}#book{width:100%}#book.spread{aspect-ratio:16/9}#book.spread #pages img{width:100%}#book.spread #pages img+img{display:none}#book.spread #pages:after{display:none}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
/* Printed book reader */
:root{color-scheme:light;color:#25344b;background:#e9edf1}body{height:100dvh;min-height:0;overflow:hidden;background:radial-gradient(ellipse at 50% 32%,#fff 0,#edf0f3 52%,#d9dfe6 100%)}header{height:76px;flex-shrink:0;background:#ffffffb8;border-bottom:1px solid #cbd3dc;padding:0 3%}.brand{color:#183a71}.brand .logo{width:146px;height:auto;display:block}.brand i{background:#b8c5d4}.brand small{color:#71829b}.edition{color:#6c7c92}.edition b{color:#bf6c0c}header button{border-color:#c8d1dc;color:#334b69;background:#ffffff8c}button:hover:not(:disabled),footer a:hover{color:#006bcb;background:#006bcb0c}main{padding:14px 20px 12px;justify-content:center;flex:1;min-height:0}.intro{margin:0 0 18px;display:flex;align-items:center;justify-content:center;gap:14px}.intro>span{color:#8b98a8;letter-spacing:2px;font-size:9px}.intro p{font-family:Georgia,'Times New Roman',serif;color:#263e5c;font-size:22px;margin:0}.reader{gap:14px;min-height:0;width:100%}.arrow{border-color:#bfcbd8;background:#ffffff9c;color:#4a607b;flex-basis:40px;height:40px;font-size:30px;box-shadow:0 3px 10px #29415a0a}#viewport{overflow:visible;padding:12px 8px 18px;min-height:0;align-items:center;justify-content:center}#book,#book.spread{aspect-ratio:auto;max-width:none;position:relative;perspective:none;filter:drop-shadow(0 18px 17px #253a4e3b);flex-shrink:0;transition:none;touch-action:none;border-radius:1px;box-shadow:0 2px 0 #fff,0 4px 0 #a8b1bc,0 5px 0 #f6f7f8,0 7px 0 #b3bbc5,0 8px 0 #fff,0 10px 0 #b5bec9}#book:before,#book:after{content:'';position:absolute;top:5px;bottom:-5px;width:5px;background:repeating-linear-gradient(#fff 0 1px,#afb7c0 1px 2px);z-index:-1}#book:before{left:-5px;transform:skewY(-32deg)}#book:after{right:-5px;transform:skewY(32deg)}#flipHost{margin:0}.leaf{background:#fff;overflow:hidden}.leaf>img{display:block;width:100%;height:100%;object-fit:fill;user-select:none;-webkit-user-drag:none}.leaf:after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,transparent 88%,#00000005 95%,#00000024 100%)}.leaf:nth-child(even):after{background:linear-gradient(90deg,#00000024 0%,#00000006 5%,transparent 12%)}.leaf-number{position:absolute;bottom:10px;right:12px;padding:3px 7px;background:#ffffffdc;color:#234a78;border:1px solid #b0c0d24a;border-radius:3px;font-size:10px;font-variant-numeric:tabular-nums;box-shadow:0 1px 4px #0000000a}.leaf:nth-child(even) .leaf-number{right:12px}.below{margin:14px 65px 0;font-size:11px;color:#7e8c9d}#status{color:#334d6b;font-size:11px;letter-spacing:1px;font-weight:600}.hint{font-size:10px}footer{flex-shrink:0;height:66px;margin:0;padding:0 3%;background:#ffffffbc;border-top:1px solid #c5ced8;color:#47607d}footer button,footer a{color:#47607d}.pagination label{color:#72849a}.pagination input{background:#fff;border-color:#c6d0dc;color:#23476a}.divider{background:#c8d0da}#layout[aria-pressed=true]{color:#0079d9;background:#087cdf12}.progress{height:3px;flex-shrink:0;background:#cdd6df}.progress div{background:linear-gradient(90deg,#007fed,#269ced)}dialog{background:#f0f4f8;color:#273f5e;border-color:#c1cddd;box-shadow:0 25px 90px #0b20394a}dialog::backdrop{background:#172c478a}.dialogHead small{color:#0c78d0}#thumbnails span{color:#56708d}#thumbnails button.active img{border-color:#0a84e5}.dialogHead button{color:#35506e}.playing{color:#0087df!important}#viewport.zoomed{overflow:auto}#viewport.zoomed #book{transform-origin:left center}.stf__wrapper{overflow:visible!important}.stf__parent{touch-action:none}#toast{background:#173958;color:white}@media(max-width:700px){body{height:100dvh}header{height:66px}.brand .logo{width:122px}.intro{flex-direction:column;gap:7px;margin-bottom:24px}.intro p{font-size:22px}main{padding:12px 6px}.reader{gap:2px}.arrow{flex-basis:25px;height:32px;font-size:24px}#viewport{padding:8px 3px 16px}.below{margin:18px 28px 0;gap:15px}.hint{max-width:150px;font-size:9px}#status{font-size:9px;white-space:nowrap}footer{height:62px;padding:0 7px}.leaf-number{font-size:8px;padding:2px 5px;bottom:6px;right:7px}#book.spread{aspect-ratio:auto}.intro>span{font-size:8px}}
.header-actions{display:flex;align-items:center;gap:18px}.languages{display:flex;align-items:center;gap:3px;background:#edf2f7;border:1px solid #d7e0e9;padding:4px;border-radius:9px}.languages button{display:flex;align-items:center;gap:7px;border:0;padding:7px 11px;border-radius:6px;font-size:11px;font-weight:600;letter-spacing:.5px;color:#62748a;background:transparent;transition:background .2s,color .2s}.languages button span{display:inline-flex;font-size:19px;line-height:1}.languages button.selected{background:white;color:#087cce;box-shadow:0 1px 5px #27496c20}.languages button:hover{background:#fff8}.languages button.selected:hover{background:#fff}@media(max-width:950px){.edition{display:none}}@media(max-width:700px){header{padding:0 12px}.header-actions{gap:7px}.languages{gap:0;padding:3px;border-radius:7px}.languages button{padding:6px 7px;font-size:10px;gap:4px}.languages button span{font-size:16px}header #share{padding:7px}.brand .logo{width:102px}}
/* Portrait reading: two full-width sheets with a horizontal hinge. */
#direction[aria-pressed=true]{color:#0079d9;background:#087cdf12}body.vertical-reader{height:auto;min-height:100dvh;overflow-x:hidden;overflow-y:auto}body.vertical-reader main{justify-content:flex-start;flex:none;width:100%;padding:16px 12px 18px;min-height:calc(100dvh - 145px)}body.vertical-reader .intro{flex-direction:row;gap:12px;margin:0 0 18px}body.vertical-reader .intro p{font-size:20px}body.vertical-reader .reader{position:relative;display:block;max-width:960px;margin:0 auto;padding:0 26px}body.vertical-reader #viewport{display:block;overflow:visible;padding:0 0 12px;width:100%;min-height:0}body.vertical-reader #book{width:100%!important;height:auto!important;aspect-ratio:8/9;max-width:900px;margin:0 auto;perspective:2000px;touch-action:none;filter:drop-shadow(0 14px 16px #253a4e2b);box-shadow:0 2px 0 #fff,0 4px 0 #a8b1bc,0 5px 0 #f6f7f8,0 7px 0 #b3bbc5}body.vertical-reader #book:before,body.vertical-reader #book:after{top:2px;bottom:0;width:3px}body.vertical-reader .arrow{position:absolute;right:-8px;top:50%;z-index:2;width:30px;min-width:30px;height:34px;font-size:20px}body.vertical-reader #prev{top:calc(50% - 45px)}body.vertical-reader #next{top:calc(50% + 7px)}body.vertical-reader .below{width:100%;max-width:900px;margin:14px auto 0;padding:0 25px;gap:14px;align-items:center}body.vertical-reader .hint{max-width:none;font-size:10px;line-height:1.5}body.vertical-reader #status{font-size:10px;white-space:nowrap}body.vertical-reader footer{position:sticky;bottom:0;z-index:30;backdrop-filter:blur(12px);background:#f6f8fbeF;margin-top:auto}body.vertical-reader .progress{position:sticky;bottom:0;z-index:31}.vertical-stage{position:absolute;inset:0;perspective:1800px;transform-style:preserve-3d;touch-action:none}.vertical-slot{position:absolute;width:100%;height:50%;background:#fff;overflow:hidden}.vertical-slot.upper{top:0}.vertical-slot.lower{top:50%}.vertical-content{position:relative;width:100%;height:100%;background:white;overflow:hidden}.vertical-content>img{width:100%;height:100%;display:block;object-fit:contain;user-select:none;-webkit-user-drag:none}.vertical-slot.upper:after,.vertical-slot.lower:after{content:'';position:absolute;inset:0;pointer-events:none}.vertical-slot.upper:after{background:linear-gradient(0deg,#102c4a20,transparent 12%)}.vertical-slot.lower:after{background:linear-gradient(180deg,#102c4a24,transparent 12%)}.vertical-stage:after{content:'';position:absolute;left:0;right:0;top:50%;height:1px;background:#102c4a21;pointer-events:none}.vertical-flap{position:absolute;width:100%;height:50%;transform-style:preserve-3d;z-index:10;will-change:transform;pointer-events:none}.vertical-flap.forward{top:0;transform-origin:center bottom}.vertical-flap.backward{top:50%;transform-origin:center top}.paper-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:#fff;overflow:hidden}.paper-face.back{transform:rotateX(180deg)}.paper-face:after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,#0002,transparent 30%);pointer-events:none}.fold-shadow{position:absolute;inset:0;background:linear-gradient(0deg,transparent 25%,#0a254080 50%,transparent 75%);pointer-events:none;z-index:9;opacity:0}body.vertical-reader #viewport.zoomed{overflow:auto}body.vertical-reader #viewport.zoomed #book{transform-origin:top left}@media(max-width:700px){body.vertical-reader header{position:sticky;top:0;z-index:40;backdrop-filter:blur(12px)}body.vertical-reader main{padding:14px 8px 18px;min-height:calc(100dvh - 131px)}body.vertical-reader .intro{gap:9px;margin-bottom:14px}body.vertical-reader .intro>span{font-size:7px;letter-spacing:1px}body.vertical-reader .intro p{font-size:18px}body.vertical-reader .reader{padding:0 8px}body.vertical-reader .arrow{right:0;width:25px;min-width:25px;height:30px;box-shadow:0 2px 8px #20395321;opacity:.92}body.vertical-reader #prev{top:calc(50% - 37px)}body.vertical-reader #next{top:calc(50% + 4px)}body.vertical-reader .below{margin:12px auto 0;padding:0 9px;gap:8px}body.vertical-reader .hint{font-size:9px;max-width:62%}body.vertical-reader #status{font-size:9px}.tools{gap:0}footer .divider{margin:0 2px}footer button,footer a{min-width:28px}#direction{display:inline-flex}}
body.vertical-reader #book{max-width:min(900px,calc((100dvh - 215px)*8/9))}body.vertical-reader .reader{max-width:960px}body.vertical-reader .below{max-width:min(900px,calc((100dvh - 215px)*8/9 + 50px))}@media(max-width:700px){body.vertical-reader #book{max-width:100%}}