/* Standalone reader. Source slide styles stay inside a scriptless iframe. */
.book-reader[data-embedded="true"]{grid-template-rows:auto minmax(0,1fr) auto}
:root{--ink:#17211f;--paper:#f4f2ec;--line:#d9d3c7;--copper:#a96243;--mono:'IBM Plex Mono',monospace;--sans:'IBM Plex Sans',Arial,sans-serif}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#dedbd2;font-family:var(--sans)}button,input,select{font:inherit;color:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{cursor:pointer}button:disabled,input:disabled,select:disabled{opacity:.45;cursor:default}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--copper);outline-offset:3px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}
.book-reader{height:100dvh;min-height:440px;display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;overflow:hidden}.reader-header{background:var(--paper);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 25px;border-bottom:1px solid var(--line)}.reader-back{font-size:12px;min-height:44px;display:flex;align-items:center}.reader-header>div{text-align:center}.reader-header h1{font-size:16px;letter-spacing:.12em;margin:0;font-weight:500}.reader-header h1 span{font:9px var(--mono);letter-spacing:.04em;color:#626865}.reader-header p{font:9px var(--mono);margin:8px 0 0;color:#626865}#reader-close{width:44px;height:44px;border:1px solid var(--line);font-size:25px;font-weight:300;background:none}.reader-tools{padding:10px 25px;background:var(--paper);display:flex;justify-content:space-between;align-items:flex-end;gap:20px}.chapter-picker{font:8px var(--mono);display:flex;flex-direction:column;gap:6px;width:min(380px,50%);color:#626865}.reader-tools select{min-height:42px;border:1px solid #b8b9ad;background:#f4f2ec;padding:8px 12px;border-radius:0;font:12px var(--sans);max-width:100%}.reader-view-tools{display:flex;align-items:center;gap:9px}#book-text-toggle{min-height:42px;background:none;border:1px solid #b8b9ad;font-size:12px;padding:9px 13px}#book-text-toggle[aria-pressed=true]{background:var(--ink);color:var(--paper)}.zoom-picker{display:flex;gap:9px;align-items:center;font-size:10px}.zoom-picker select{width:99px}.reader-viewport{position:relative;overflow:auto;overscroll-behavior:contain;scrollbar-gutter:stable;padding:24px;min-height:0;touch-action:pan-x pan-y;perspective:1800px}.reader-paper{position:relative;overflow:hidden;background:#f7f3ec;box-shadow:0 15px 30px #17211f29,0 2px 4px #17211f30;margin-inline:auto;transform-origin:left center}.reader-paper iframe{position:absolute;left:0;top:0;width:1920px;height:1080px;transform-origin:left top;border:0;pointer-events:none;background:#f7f3ec}.paper-spine{position:absolute;inset:0 auto 0 0;width:13px;background:linear-gradient(90deg,#17211f26,transparent);pointer-events:none}.reader-loading,.reader-error{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;text-align:center;padding:24px}.book-loading-mark{font:52px Georgia,serif;color:#285f4c}.reader-loading p,.reader-error p{font-size:14px}.reader-error button{background:var(--ink);color:var(--paper);padding:13px 22px;border:0;min-height:44px}.reader-text{max-width:740px;margin:0 auto;background:#f7f3ec;padding:30px 35px;box-shadow:0 8px 25px #17211f12}.reader-text h2{font-size:22px;font-weight:500;line-height:1.3;margin:0 0 23px}.reader-text p{font-size:17px;line-height:1.75;margin:0 0 15px;white-space:pre-wrap}.reader-text .transcription-note{font-size:12px;color:#626865;border-bottom:1px solid var(--line);padding-bottom:18px}.reader-bottom{background:var(--paper);border-top:1px solid var(--line);padding:12px 25px 15px}.reader-pagination{display:flex;align-items:center;justify-content:center;gap:12px}.reader-pagination>button{width:44px;height:44px;font-size:22px;background:none;border:1px solid var(--line)}.reader-pagination form{display:flex;align-items:center;gap:6px;font:10px var(--mono);margin:0}.reader-pagination input{width:55px;height:39px;text-align:center;border:1px solid var(--line);background:white;font-size:16px;-moz-appearance:textfield}.reader-pagination input::-webkit-inner-spin-button{appearance:none}#book-page-label{font:9px var(--mono);max-width:230px;margin-left:10px;color:#626865;line-height:1.5}.reader-hint{font-size:10px;text-align:center;margin:9px 0 0;color:#626865}.reader-disclaimer{font:8px/1.5 var(--mono);text-align:center;color:#777b70;margin:8px auto 0;max-width:890px}
@media(max-width:600px){.reader-header{gap:10px;padding:10px 14px}.reader-header h1{font-size:14px}.reader-header h1 span{display:block;font-size:7px;margin-top:5px}.reader-header p{font-size:7px;margin-top:5px}.reader-back{font-size:11px}.reader-tools{padding:10px 14px;gap:9px;align-items:stretch;flex-wrap:wrap}.chapter-picker{width:100%;font-size:8px}.chapter-picker select{min-height:44px;font-size:14px}.reader-view-tools{width:100%;justify-content:space-between}.reader-view-tools button{min-height:44px!important;font-size:12px!important}.zoom-picker{font-size:10px}.zoom-picker select{min-height:44px;font-size:14px}.reader-viewport{padding:14px;scrollbar-gutter:auto}.reader-bottom{padding:10px 14px max(11px,env(safe-area-inset-bottom))}.reader-pagination{gap:9px}#book-page-label{font-size:8px;max-width:115px;margin-left:3px}.reader-hint{font-size:9px;line-height:1.5;margin-top:8px}.reader-disclaimer{font-size:7px;line-height:1.5}.reader-text{padding:23px 21px}.reader-text p{font-size:16px}.reader-text h2{font-size:20px}}
@media(max-height:570px) and (min-width:601px){.reader-header{padding-block:3px}.reader-tools{padding-block:5px}.reader-hint,.reader-disclaimer{display:none}.reader-bottom{padding-block:6px}.reader-viewport{padding:12px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}