/*!
 * Res Opera PDF Flipbook – viewer styles
 * (c) Res Opera Solutions – https://resopera.com
 */
.rofb{--rofb-bg:#1d2030;--rofb-bar:#161927;--rofb-accent:#6c5ce7;--rofb-text:#e9ebf5;--rofb-muted:rgba(233,235,245,.62);
  position:relative;display:flex;flex-direction:column;width:100%;min-height:320px;box-sizing:border-box;overflow:hidden;
  background:var(--rofb-bg);color:var(--rofb-text);border-radius:10px;
  font:14px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-tap-highlight-color:transparent;outline:none;user-select:none;-webkit-user-select:none}
.rofb *,.rofb *::before,.rofb *::after{box-sizing:border-box}
.rofb.rofb-light{--rofb-bg:#eceef4;--rofb-bar:#ffffff;--rofb-text:#23263a;--rofb-muted:rgba(35,38,58,.6)}
.rofb.rofb-fs{position:fixed!important;inset:0;width:100vw!important;height:100vh!important;z-index:2147483000;border-radius:0}
.rofb:fullscreen{width:100vw!important;height:100vh!important;border-radius:0}
.rofb:-webkit-full-screen{width:100vw!important;height:100vh!important;border-radius:0}
.rofb-bgimg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.9;pointer-events:none}

/* fallback (before JS / for crawlers) */
.rofb-fallback{padding:24px;color:var(--rofb-text);text-align:center}
.rofb-fallback h2,.rofb-fallback h3{margin:0 0 8px;color:inherit}
.rofb-fallback a{color:var(--rofb-accent)}
.rofb-loader{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:30;background:var(--rofb-bg);transition:opacity .3s}
.rofb-loader.rofb-hide{opacity:0;pointer-events:none}
.rofb-spin{width:42px;height:42px;border-radius:50%;border:4px solid rgba(127,127,127,.25);border-top-color:var(--rofb-accent);animation:rofbspin .8s linear infinite}
.rofb-loadtxt{position:absolute;margin-top:76px;font-size:12px;color:var(--rofb-muted)}
@keyframes rofbspin{to{transform:rotate(360deg)}}
.rofb-error{padding:28px;text-align:center;max-width:520px;margin:auto}
.rofb-error a{color:var(--rofb-accent)}

/* layout */
.rofb-main{position:relative;flex:1 1 auto;min-height:0;display:flex}
.rofb-stage{position:absolute;inset:0;overflow:hidden;touch-action:none;cursor:default}
.rofb-zoom{position:absolute;inset:0;transform-origin:50% 50%;will-change:transform}
.rofb-book{position:absolute;left:50%;top:50%}
.rofb-rtl .rofb-book{transform:scaleX(-1)}
.rofb-shift{position:absolute;inset:0;transition:transform .55s cubic-bezier(.4,.1,.2,1)}
.rofb-floor{position:absolute;left:4%;right:4%;bottom:-22px;height:34px;border-radius:50%;
  background:radial-gradient(ellipse at center,rgba(0,0,0,.45),rgba(0,0,0,0) 70%);filter:blur(6px);pointer-events:none}
.rofb-stack{position:absolute;top:1.2%;bottom:1.2%;pointer-events:none;border-radius:2px;
  background:repeating-linear-gradient(90deg,#f4f4f6 0,#f4f4f6 1px,#cfd0d6 1px,#cfd0d6 2px)}
.rofb-sheet{position:absolute;top:0;height:100%;transform-style:preserve-3d;transform-origin:0 50%;will-change:transform}
.rofb-face{position:absolute;inset:0;overflow:hidden;background:#fff;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.rofb-face.rofb-back{transform:rotateY(180deg)}
.rofb-fi{position:absolute;inset:0}
.rofb-rtl .rofb-fi{transform:scaleX(-1)}
.rofb-pg{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;display:block;opacity:0;transition:opacity .25s;pointer-events:none;
  -webkit-user-drag:none}
.rofb-pg.rofb-ready{opacity:1}
.rofb-ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#b5b8c6;font-size:13px;pointer-events:none}
.rofb-shade{position:absolute;inset:0;background:#000;opacity:0;pointer-events:none}
.rofb-spine-f{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(0,0,0,.30) 0,rgba(0,0,0,.10) 3%,rgba(0,0,0,0) 9%)}
.rofb-spine-b{position:absolute;inset:0;pointer-events:none;background:linear-gradient(270deg,rgba(0,0,0,.30) 0,rgba(0,0,0,.10) 3%,rgba(0,0,0,0) 9%)}
.rofb-edge{position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08)}
.rofb-links{position:absolute;inset:0}
.rofb-links a{position:absolute;display:block;border-radius:2px;background:rgba(108,92,231,0);transition:background .15s;cursor:pointer}
.rofb-links a:hover{background:rgba(108,92,231,.22)}
.rofb-nolinks .rofb-links{display:none}
.rofb-noselect .rofb-pg{pointer-events:none}

/* side arrows */
.rofb-arrow{position:absolute;top:50%;width:40px;height:64px;margin-top:-32px;border:0;border-radius:8px;background:rgba(0,0,0,.28);color:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:5;opacity:0;transition:opacity .2s,background .2s;padding:0}
.rofb-main:hover .rofb-arrow{opacity:.85}
.rofb-arrow:hover{background:var(--rofb-accent);opacity:1}
.rofb-arrow[disabled]{display:none}
.rofb-arrow svg{width:24px;height:24px}
.rofb-arrow-l{left:8px}.rofb-arrow-r{right:8px}
@media (hover:none){.rofb-arrow{opacity:.55}}

/* toolbar */
.rofb-bar{position:relative;z-index:12;flex:0 0 auto;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:4px;padding:7px 10px;
  background:var(--rofb-bar);box-shadow:0 -1px 0 rgba(127,127,127,.18)}
.rofb-top .rofb-bar{order:-1;box-shadow:0 1px 0 rgba(127,127,127,.18)}
.rofb-grp{display:flex;align-items:center;gap:2px}
.rofb-sep{width:1px;height:20px;background:rgba(127,127,127,.3);margin:0 6px}
.rofb-btn{width:36px;height:36px;border:0;border-radius:8px;background:transparent;color:var(--rofb-text);cursor:pointer;padding:0;
  display:inline-flex;align-items:center;justify-content:center;transition:background .15s,color .15s;position:relative}
.rofb-btn svg{width:20px;height:20px;pointer-events:none}
.rofb-btn:hover{background:rgba(127,127,127,.2)}
.rofb-btn:focus-visible{outline:2px solid var(--rofb-accent);outline-offset:1px}
.rofb-btn.rofb-on{background:var(--rofb-accent);color:#fff}
.rofb-btn[disabled]{opacity:.35;cursor:default;background:transparent}
.rofb-pageinfo{display:flex;align-items:center;gap:6px;color:var(--rofb-muted);font-size:13px;white-space:nowrap;padding:0 4px}
.rofb-pageinfo input{width:52px;height:30px;border-radius:6px;border:1px solid rgba(127,127,127,.35);background:rgba(127,127,127,.12);color:var(--rofb-text);
  text-align:center;font:inherit;padding:0 4px;user-select:text;-webkit-user-select:text}
.rofb-pageinfo input:focus{outline:2px solid var(--rofb-accent);border-color:transparent}
.rofb-narrow .rofb-btn{width:32px;height:32px}
.rofb-narrow .rofb-btn svg{width:18px;height:18px}
.rofb-narrow [data-minor]{display:none}
.rofb-narrow .rofb-sep{display:none}

/* credit (locked) */
.rofb-credit{flex:0 0 auto;text-align:center;font-size:12px;padding:4px 8px 6px;background:var(--rofb-bar);color:var(--rofb-muted);
  border-top:1px solid rgba(127,127,127,.12);position:relative;z-index:13}
.rofb-credit a{color:var(--rofb-text);text-decoration:none;font-weight:600}
.rofb-credit a:hover{color:var(--rofb-accent);text-decoration:underline}
.rofb-credit svg{width:12px;height:12px;vertical-align:-1px;margin:0 2px;fill:#ff4d6d}
.rofb-top .rofb-credit{order:5}

/* sidebar */
.rofb-side{position:absolute;left:0;top:0;bottom:0;width:min(300px,88%);z-index:10;background:var(--rofb-bar);transform:translateX(-102%);transition:transform .3s ease;
  display:flex;flex-direction:column;box-shadow:4px 0 22px rgba(0,0,0,.28)}
.rofb-side.rofb-open{transform:none}
.rofb-tabs{display:flex;border-bottom:1px solid rgba(127,127,127,.2)}
.rofb-tab{flex:1;border:0;background:transparent;color:var(--rofb-muted);padding:11px 4px;cursor:pointer;font:inherit;font-weight:600;font-size:12px;border-bottom:2px solid transparent}
.rofb-tab.rofb-on{color:var(--rofb-text);border-color:var(--rofb-accent)}
.rofb-sclose{border:0;background:transparent;color:var(--rofb-text);cursor:pointer;width:36px}
.rofb-sbody{flex:1;overflow:auto;padding:10px;-webkit-overflow-scrolling:touch}
.rofb-thumbs{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.rofb-thumb{border:2px solid transparent;border-radius:6px;padding:4px;background:rgba(127,127,127,.12);cursor:pointer;text-align:center;color:var(--rofb-muted);font-size:11px}
.rofb-thumb canvas,.rofb-thumb img{width:100%;height:auto;display:block;background:#fff;border-radius:3px;min-height:60px;aspect-ratio:var(--rofb-ratio,.7)}
.rofb-thumb.rofb-on{border-color:var(--rofb-accent);color:var(--rofb-text)}
.rofb-toc{list-style:none;margin:0;padding:0}
.rofb-toc ul{list-style:none;margin:0;padding:0 0 0 14px}
.rofb-toc button{display:block;width:100%;text-align:left;border:0;background:transparent;color:var(--rofb-text);padding:7px 8px;border-radius:6px;cursor:pointer;font:inherit}
.rofb-toc button:hover{background:rgba(127,127,127,.18)}
.rofb-toc small{color:var(--rofb-muted);float:right;margin-left:8px}
.rofb-search input{width:100%;height:36px;border-radius:8px;border:1px solid rgba(127,127,127,.35);background:rgba(127,127,127,.12);color:var(--rofb-text);padding:0 10px;font:inherit;user-select:text;-webkit-user-select:text}
.rofb-res{margin-top:10px}
.rofb-res button{display:block;width:100%;text-align:left;border:0;background:transparent;color:var(--rofb-text);padding:8px;border-radius:6px;cursor:pointer;font:inherit;font-size:13px}
.rofb-res button:hover{background:rgba(127,127,127,.18)}
.rofb-res b{color:var(--rofb-accent)}.rofb-res mark{background:rgba(255,213,0,.45);color:inherit;border-radius:2px}
.rofb-empty{color:var(--rofb-muted);padding:10px;font-size:13px}

/* modal */
.rofb-modal{position:absolute;inset:0;z-index:40;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center;padding:16px}
.rofb-modal.rofb-open{display:flex}
.rofb-box{background:var(--rofb-bar);color:var(--rofb-text);border-radius:12px;padding:20px;width:min(460px,100%);max-height:100%;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.rofb-box h3{margin:0 0 12px;font-size:16px;color:inherit}
.rofb-box label{display:block;font-size:12px;color:var(--rofb-muted);margin:12px 0 4px}
.rofb-copy{display:flex;gap:6px}
.rofb-copy input,.rofb-copy textarea{flex:1;min-width:0;border-radius:8px;border:1px solid rgba(127,127,127,.35);background:rgba(127,127,127,.12);color:var(--rofb-text);padding:8px;font:12px/1.4 monospace;user-select:text;-webkit-user-select:text}
.rofb-copy textarea{height:70px;resize:none}
.rofb-copy button,.rofb-cta{border:0;border-radius:8px;background:var(--rofb-accent);color:#fff;padding:0 14px;cursor:pointer;font:inherit;font-weight:600;min-height:34px}
.rofb-soc{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.rofb-soc a{padding:7px 12px;border-radius:20px;background:rgba(127,127,127,.2);color:var(--rofb-text);text-decoration:none;font-size:12px;font-weight:600}
.rofb-soc a:hover{background:var(--rofb-accent);color:#fff}
.rofb-mclose{float:right;border:0;background:transparent;color:var(--rofb-text);cursor:pointer;font-size:22px;line-height:1}

/* locked */
.rofb-lock{max-width:420px;margin:30px auto;padding:26px;background:#fff;color:#23263a;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.12);text-align:center;
  font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
.rofb-lock h3{margin:0 0 6px}.rofb-lock input{width:100%;height:40px;border:1px solid #ccd;border-radius:8px;padding:0 10px;margin:10px 0;font:inherit}
.rofb-lock button{border:0;border-radius:8px;background:#6c5ce7;color:#fff;height:40px;padding:0 20px;cursor:pointer;font-weight:600;font:inherit}
.rofb-lock .rofb-lerr{color:#d63031;min-height:20px;font-size:13px}
.rofb-notice{padding:16px;border:1px dashed #b6b9c9;border-radius:8px;color:#555;background:#f7f7fa;text-align:center;font:14px/1.5 sans-serif}

/* lightbox trigger + overlay */
.rofb-cover{display:inline-flex;flex-direction:column;align-items:center;gap:10px;border:0;background:transparent;cursor:pointer;padding:0;max-width:100%;font:inherit;color:inherit}
.rofb-cover-img{width:240px;max-width:100%;aspect-ratio:.72;background:linear-gradient(135deg,#6c5ce7,#a29bfe);border-radius:6px 12px 12px 6px;box-shadow:0 14px 34px rgba(0,0,0,.28),inset 6px 0 8px rgba(0,0,0,.18);
  background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;padding:14px;text-align:center;transition:transform .25s}
.rofb-cover:hover .rofb-cover-img{transform:translateY(-4px) rotateY(-8deg)}
.rofb-cover-t{font-weight:600}
.rofb-cover-s{font-size:12px;opacity:.7}
.rofb-lightbox{position:fixed;inset:0;z-index:2147482000;background:rgba(8,9,16,.88);display:flex;align-items:center;justify-content:center;padding:3vh 3vw}
.rofb-lightbox>.rofb{width:100%;height:100%;max-width:1500px}
.rofb-lb-close{position:absolute;right:14px;top:10px;width:40px;height:40px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:24px;cursor:pointer;z-index:3;line-height:1}
.rofb-lb-close:hover{background:var(--rofb-accent,#6c5ce7)}

/* integrity lock */
.rofb-locked-overlay{position:absolute;inset:0;z-index:2147483600;background:#14161f;color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;padding:30px}
.rofb-locked-overlay a{color:#a29bfe}

@media (prefers-reduced-motion:reduce){.rofb-shift,.rofb-pg,.rofb-side{transition:none}}
@media print{.rofb-bar,.rofb-arrow,.rofb-side{display:none}}

/* SEO transcript + shortcode grid */
.rofb-transcript{margin:14px 0;padding:12px 16px;border:1px solid rgba(127,127,127,.3);border-radius:8px;font-size:14px;line-height:1.6}
.rofb-transcript summary{cursor:pointer;font-weight:600}
.rofb-transcript section{margin-top:12px}.rofb-transcript h3{font-size:14px;margin:0 0 4px;opacity:.7}.rofb-transcript p{margin:0;white-space:pre-line}