:root{color-scheme:dark;--paper:#f9f9f7;--ink:#171819;--muted:#b9bbbc;--line:#3b3d3f;--accent:#e0ce57}
*{box-sizing:border-box}body{margin:0;background:var(--ink);color:var(--paper);font:14px/1.4 Arial,Helvetica,sans-serif}button,input,a{-webkit-tap-highlight-color:transparent}button,a,input{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--accent)}button,a{touch-action:manipulation}button{font:inherit;color:inherit;cursor:pointer}button:disabled{opacity:.3;cursor:default}button:not(:disabled):hover,.download:hover{background:#3d3f40}a{color:inherit}#reader{height:100vh;height:100dvh;min-height:430px;display:flex;flex-direction:column;background:var(--ink)}header{display:flex;align-items:center;justify-content:space-between;padding:18px 32px;border-bottom:1px solid var(--line);gap:20px;flex-shrink:0}.brand h1{margin:0;font-size:26px;font-weight:900;letter-spacing:-1px}.brand span{color:var(--muted);font-size:11px}.edition{font-size:12px;font-weight:bold;letter-spacing:1.5px;text-align:right}.edition span{display:block;color:var(--muted);font-weight:normal;font-size:11px;letter-spacing:0;margin-top:3px}#viewport{flex:1;min-height:0;overflow:auto;background:#252728;overscroll-behavior:contain}#space{min-width:100%;min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px;overflow:hidden}#book{position:relative;flex-shrink:0;perspective:2400px;touch-action:pan-y pinch-zoom;user-select:none;transition:transform .48s ease}#book.cover{transform:translateX(-25%)}#book.back{transform:translateX(25%)}.page{position:absolute;top:0;width:50%;height:100%;background:var(--paper);box-shadow:0 8px 24px #0005;overflow:hidden}.page.empty{visibility:hidden}.left{left:0}.right{right:0}.page img,.face img{display:block;width:100%;height:100%;object-fit:contain;pointer-events:none}.page::after{content:"";position:absolute;inset:0;pointer-events:none}.left:not(.empty)::after{background:linear-gradient(90deg,transparent 94%,#0002)}.right:not(.empty)::after{background:linear-gradient(90deg,#0002,transparent 6%)}.sheet{position:absolute;top:0;width:50%;height:100%;transform-style:preserve-3d;z-index:5}.sheet.forward{left:50%;transform-origin:left center}.sheet.backward{left:0;transform-origin:right center}.face{position:absolute;inset:0;backface-visibility:hidden;background:var(--paper);box-shadow:0 5px 20px #0004;overflow:hidden}.face.reverse{transform:rotateY(180deg)}.face::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0002,transparent 20%,#0001);pointer-events:none}#message{flex-shrink:0;text-align:center;min-height:22px;font-size:11px;color:var(--muted);margin:0;padding:3px 12px;background:#252728}.toolbar{display:flex;justify-content:space-between;align-items:center;padding:12px 28px;gap:12px;border-top:1px solid var(--line);flex-shrink:0}.controls{display:flex;align-items:center;gap:6px}.controls button{height:42px;min-width:42px;padding:0 10px;background:transparent;border:1px solid var(--line);border-radius:3px;font-size:20px}.controls #zoom{font-size:12px;min-width:64px}#jump{display:flex;align-items:center;gap:7px;margin:0 8px;font-size:12px;white-space:nowrap}#page-input{width:47px;height:36px;text-align:center;background:#262829;border:1px solid #636567;border-radius:3px;color:white;font:inherit;appearance:textfield}#page-input::-webkit-inner-spin-button{appearance:none}#counter{min-width:35px}.divider{height:24px;width:1px;background:var(--line);margin:0 5px}.download{height:42px;display:flex;align-items:center;justify-content:center;gap:4px;padding:0 12px;text-decoration:none;font-size:12px;border:1px solid #747675;border-radius:3px;margin-left:6px}footer{display:flex;justify-content:space-between;gap:16px;padding:0 32px 12px;font-size:10px;color:var(--muted);flex-shrink:0}footer a{text-decoration:none;margin-left:16px}footer a:hover{text-decoration:underline}.single .page{width:100%}.single #left{display:none}.single #book.cover,.single #book.back{transform:none}.single .sheet{width:100%;left:0;transform-origin:left center}.zoomed #book{touch-action:auto;cursor:grab}.nojs{position:fixed;inset:40% 10% auto;background:white;color:black;padding:24px;z-index:20}.fallback-fullscreen{position:fixed;inset:0;z-index:9999}#reader:fullscreen{height:100dvh}
@media(max-width:850px){.toolbar{flex-wrap:wrap;justify-content:center;padding:9px 12px;gap:8px}.controls{justify-content:center}header{padding:12px 18px}.brand h1{font-size:23px}footer{padding:0 16px 8px}#hint{max-width:65%}}
@media(max-width:480px){header{gap:12px;padding:10px 14px}.brand span{display:none}.edition{font-size:10px;letter-spacing:.7px}.edition span{font-size:9px}.brand h1{font-size:22px}#space{padding:14px}.toolbar{gap:7px}.navigation,.tools{width:100%}.controls button{height:38px;min-width:38px}.download{height:38px}.download span{display:none}#jump{margin:0 4px;gap:5px}footer{justify-content:center}#hint{display:none}footer a{margin:0 8px}}
@media(max-height:520px) and (min-width:600px){header{padding:6px 20px}.brand h1{font-size:18px}.brand span,.edition span,footer{display:none}.toolbar{padding:5px 12px;flex-wrap:nowrap}#space{padding:8px}#message{min-height:18px}}
@media(prefers-reduced-motion:reduce){#book{transition:none}}