.ffb-viewer{--ffb-accent:#7c3aed;--ffb-bg:#0b1020;--ffb-zoom:1;position:relative;isolation:isolate;display:flex;flex-direction:column;height:var(--ffb-viewer-height,900px);min-height:var(--ffb-viewer-height,900px);width:100%;overflow:hidden;border-radius:24px;background:radial-gradient(circle at 50% 40%,color-mix(in srgb,var(--ffb-accent) 25%,transparent),transparent 40%),linear-gradient(145deg,color-mix(in srgb,var(--ffb-bg) 90%,#fff 10%),var(--ffb-bg));box-shadow:0 30px 80px rgba(2,6,23,.28);color:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.ffb-viewer *{box-sizing:border-box}.ffb-ambient{position:absolute;z-index:-1;width:360px;height:360px;border-radius:50%;filter:blur(90px);opacity:.16;pointer-events:none}.ffb-ambient-one{left:-140px;top:-150px;background:var(--ffb-accent)}.ffb-ambient-two{right:-180px;bottom:-190px;background:#38bdf8}.ffb-topbar,.ffb-bottombar{position:relative;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:16px 22px;border-color:rgba(255,255,255,.1);background:rgba(8,12,24,.45);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.ffb-topbar{border-bottom:1px solid rgba(255,255,255,.09)}.ffb-bottombar{border-top:1px solid rgba(255,255,255,.09)}.ffb-title-wrap{display:flex;align-items:center;min-width:0;gap:11px}.ffb-title-wrap strong{display:block;max-width:55vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;letter-spacing:.01em}.ffb-title-wrap>div>span{display:block;margin-top:2px;color:rgba(255,255,255,.55);font-size:11px}.ffb-title-dot{width:11px;height:11px;border-radius:50%;background:var(--ffb-accent);box-shadow:0 0 0 6px color-mix(in srgb,var(--ffb-accent) 16%,transparent),0 0 18px var(--ffb-accent)}.ffb-toolbar{display:flex;align-items:center;gap:7px}.ffb-icon-btn{display:grid;place-items:center;width:37px;height:37px;padding:0;border:1px solid rgba(255,255,255,.11);border-radius:11px;background:rgba(255,255,255,.07);color:#fff;cursor:pointer;text-decoration:none;transition:transform .2s ease,background .2s ease,border-color .2s ease}.ffb-icon-btn:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--ffb-accent) 70%,#fff 30%);background:color-mix(in srgb,var(--ffb-accent) 35%,rgba(255,255,255,.08))}.ffb-icon-btn svg{width:18px;height:18px;fill:currentColor}.ffb-stage{position:relative;z-index:2;display:flex;align-items:center;justify-content:center;flex:1;min-height:0;padding:30px 86px;outline:none;overflow:auto}.ffb-book-shell{position:relative;display:flex;align-items:center;justify-content:center;width:min(100%,1180px);height:100%;min-height:0;transform:scale(var(--ffb-zoom));transform-origin:center center;transition:transform .25s ease}.ffb-book-shell:after{content:"";position:absolute;z-index:-1;left:12%;right:12%;bottom:3%;height:5%;border-radius:50%;background:rgba(0,0,0,.65);filter:blur(24px)}.ffb-book{opacity:0;transition:opacity .35s ease}.ffb-viewer.is-ready .ffb-book{opacity:1}.ffb-page{position:relative;overflow:hidden;background:#f8fafc}.ffb-page canvas{display:block;width:100%;height:100%;object-fit:fill;background:#fff}.ffb-page:after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 18px rgba(15,23,42,.08)}.ffb-nav{position:absolute;z-index:15;top:50%;display:grid;place-items:center;width:58px;height:78px;padding:0;border:0;background:transparent;color:#fff;cursor:pointer;transform:translateY(-50%)}.ffb-nav-prev{left:15px}.ffb-nav-next{right:15px}.ffb-nav span{display:grid;place-items:center;width:48px;height:48px;border:1px solid rgba(255,255,255,.16);border-radius:16px;background:rgba(255,255,255,.09);box-shadow:0 14px 28px rgba(0,0,0,.24);backdrop-filter:blur(12px);transition:all .22s ease}.ffb-nav:hover span{transform:scale(1.08);border-color:var(--ffb-accent);background:var(--ffb-accent);box-shadow:0 15px 32px color-mix(in srgb,var(--ffb-accent) 35%,transparent)}.ffb-nav svg{width:25px;height:25px;fill:currentColor}.ffb-nav:disabled{opacity:.22;cursor:not-allowed}.ffb-nav:disabled:hover span{transform:none;background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.16);box-shadow:0 14px 28px rgba(0,0,0,.24)}.ffb-loader{position:absolute;z-index:30;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px;background:radial-gradient(circle at center,color-mix(in srgb,var(--ffb-accent) 16%,transparent),transparent 38%),rgba(8,12,24,.62);backdrop-filter:blur(16px);transition:opacity .35s ease,visibility .35s ease}.ffb-loader.is-hidden{opacity:0;visibility:hidden;pointer-events:none}.ffb-loader strong{margin-top:18px;font-size:15px}.ffb-loader small{margin-top:7px;color:rgba(255,255,255,.55)}.ffb-loader-mark{display:flex;gap:5px;height:34px;align-items:flex-end}.ffb-loader-mark span{display:block;width:8px;border-radius:8px;background:var(--ffb-accent);animation:ffbPulse 1s ease-in-out infinite}.ffb-loader-mark span:nth-child(1){height:18px;animation-delay:-.22s}.ffb-loader-mark span:nth-child(2){height:31px;animation-delay:-.11s}.ffb-loader-mark span:nth-child(3){height:23px}.ffb-progress{width:min(280px,70vw);height:5px;margin-top:17px;overflow:hidden;border-radius:999px;background:rgba(255,255,255,.12)}.ffb-progress i{display:block;width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--ffb-accent),#c084fc);box-shadow:0 0 18px var(--ffb-accent);transition:width .18s ease}.ffb-error-panel{position:absolute;z-index:35;left:50%;top:50%;width:min(380px,calc(100% - 40px));padding:30px;border:1px solid rgba(255,255,255,.13);border-radius:20px;background:rgba(15,23,42,.86);box-shadow:0 24px 70px rgba(0,0,0,.35);text-align:center;transform:translate(-50%,-50%);backdrop-filter:blur(18px)}.ffb-error-panel>span{display:grid;place-items:center;width:44px;height:44px;margin:0 auto 14px;border-radius:50%;background:#ef4444;font-size:22px;font-weight:800}.ffb-error-panel strong{display:block}.ffb-error-panel p{margin:7px 0 0;color:rgba(255,255,255,.62)}.ffb-text-btn{display:flex;align-items:center;gap:7px;padding:9px 13px;border:0;border-radius:11px;background:transparent;color:rgba(255,255,255,.78);font:inherit;font-size:12px;font-weight:650;cursor:pointer;transition:.2s}.ffb-text-btn:hover{background:rgba(255,255,255,.08);color:#fff}.ffb-text-btn:disabled{opacity:.25;cursor:not-allowed}.ffb-text-btn svg{width:17px;height:17px;fill:currentColor}.ffb-page-pill{display:flex;align-items:center;gap:8px;min-width:88px;justify-content:center;padding:8px 14px;border:1px solid rgba(255,255,255,.1);border-radius:999px;background:rgba(255,255,255,.055);font-size:12px;font-variant-numeric:tabular-nums}.ffb-page-pill i{width:20px;height:1px;background:rgba(255,255,255,.25)}.ffb-viewer.is-fullscreen{height:100vh;min-height:100vh;border-radius:0}.ffb-viewer.is-fullscreen .ffb-stage{min-height:calc(100vh - 134px)}.ffb-error{padding:16px;border-left:4px solid #ef4444;background:#fff1f2;color:#881337}@keyframes ffbPulse{0%,100%{transform:scaleY(.65);opacity:.55}50%{transform:scaleY(1.15);opacity:1}}@media(max-width:900px){.ffb-viewer{border-radius:18px}.ffb-stage{padding:24px 58px}.ffb-nav{width:48px}.ffb-nav-prev{left:5px}.ffb-nav-next{right:5px}.ffb-nav span{width:42px;height:42px;border-radius:14px}}@media(max-width:600px){.ffb-viewer{border-radius:14px}.ffb-topbar,.ffb-bottombar{padding:12px 13px}.ffb-title-wrap strong{max-width:42vw;font-size:12px}.ffb-toolbar{gap:4px}.ffb-icon-btn{width:33px;height:33px;border-radius:9px}.ffb-icon-btn svg{width:16px;height:16px}.ffb-stage{padding:16px 38px}.ffb-nav{width:38px}.ffb-nav-prev{left:0}.ffb-nav-next{right:0}.ffb-nav span{width:34px;height:46px;border-radius:10px}.ffb-nav svg{width:20px;height:20px}.ffb-text-btn span{display:none}.ffb-bottombar{justify-content:center;gap:20px}.ffb-text-btn{padding:8px}.ffb-page-status{display:none}}@supports not (color:color-mix(in srgb,#000,#fff)){.ffb-viewer{background:linear-gradient(145deg,#172033,var(--ffb-bg))}.ffb-icon-btn:hover,.ffb-nav:hover span{background:var(--ffb-accent)}}

/* Enhanced reading and zoom controls */
.ffb-zoom-value{display:grid;place-items:center;min-width:49px;height:37px;padding:0 8px;border:1px solid rgba(255,255,255,.11);border-radius:11px;background:rgba(255,255,255,.05);color:rgba(255,255,255,.82);font:700 11px/1 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;cursor:pointer;transition:.2s}.ffb-zoom-value:hover{border-color:var(--ffb-accent);background:rgba(255,255,255,.1);color:#fff}.ffb-reader-launch{border-color:color-mix(in srgb,var(--ffb-accent) 55%,rgba(255,255,255,.12));background:color-mix(in srgb,var(--ffb-accent) 18%,rgba(255,255,255,.07))}.ffb-page canvas{cursor:zoom-in}.ffb-reader[hidden]{display:none!important}.ffb-reader{position:fixed;z-index:2147483600;inset:0;display:flex;align-items:stretch;justify-content:stretch;padding:18px;background:rgba(3,7,18,.88);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.ffb-reader-panel{position:relative;display:flex;flex-direction:column;width:100%;height:100%;overflow:hidden;border:1px solid rgba(255,255,255,.14);border-radius:22px;background:linear-gradient(145deg,#111827,#07111f);box-shadow:0 35px 100px rgba(0,0,0,.55)}.ffb-reader-topbar{position:relative;z-index:5;display:flex;align-items:center;justify-content:space-between;min-height:68px;padding:12px 16px 12px 22px;border-bottom:1px solid rgba(255,255,255,.1);background:rgba(8,12,24,.83);color:#fff;backdrop-filter:blur(15px)}.ffb-reader-title{min-width:0}.ffb-reader-title strong{display:block;max-width:50vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.ffb-reader-title span{display:block;margin-top:3px;color:rgba(255,255,255,.58);font-size:11px}.ffb-reader-tools{display:flex;align-items:center;gap:7px}.ffb-reader-btn,.ffb-reader-percent{display:grid;place-items:center;height:40px;border:1px solid rgba(255,255,255,.12);border-radius:11px;background:rgba(255,255,255,.07);color:#fff;cursor:pointer;transition:.2s}.ffb-reader-btn{width:40px;padding:0}.ffb-reader-btn svg,.ffb-reader-nav svg{width:20px;height:20px;fill:currentColor}.ffb-reader-percent{min-width:62px;padding:0 11px;font:700 12px/1 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.ffb-reader-btn:hover,.ffb-reader-percent:hover{transform:translateY(-1px);border-color:var(--ffb-accent);background:color-mix(in srgb,var(--ffb-accent) 35%,rgba(255,255,255,.08))}.ffb-reader-btn:disabled,.ffb-reader-nav:disabled{opacity:.25;cursor:not-allowed;transform:none}.ffb-reader-close{margin-left:5px;background:rgba(239,68,68,.15)}.ffb-reader-close:hover{border-color:#ef4444;background:#ef4444}.ffb-reader-viewport{position:relative;flex:1;min-height:0;overflow:auto;overscroll-behavior:contain;scrollbar-color:rgba(255,255,255,.25) transparent}.ffb-reader-page-wrap{width:max-content;min-width:100%;min-height:100%;padding:32px 72px;box-sizing:border-box}.ffb-reader-page-wrap canvas{display:block;margin:0 auto;background:#fff;box-shadow:0 24px 70px rgba(0,0,0,.48);cursor:zoom-in}.ffb-reader-loading{position:fixed;z-index:6;left:50%;top:50%;display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 22px;border:1px solid rgba(255,255,255,.12);border-radius:16px;background:rgba(8,12,24,.88);color:#fff;transform:translate(-50%,-50%);backdrop-filter:blur(12px)}.ffb-reader-loading[hidden]{display:none}.ffb-reader-loading span{width:28px;height:28px;border:3px solid rgba(255,255,255,.17);border-top-color:var(--ffb-accent);border-radius:50%;animation:ffbReaderSpin .8s linear infinite}.ffb-reader-loading small{color:rgba(255,255,255,.7)}.ffb-reader-nav{position:absolute;z-index:4;top:50%;display:grid;place-items:center;width:48px;height:64px;padding:0;border:1px solid rgba(255,255,255,.14);border-radius:15px;background:rgba(8,12,24,.72);color:#fff;cursor:pointer;transform:translateY(-50%);backdrop-filter:blur(12px);transition:.2s}.ffb-reader-nav:hover{border-color:var(--ffb-accent);background:var(--ffb-accent);transform:translateY(-50%) scale(1.05)}.ffb-reader-prev{left:16px}.ffb-reader-next{right:16px}.ffb-reader-lock{overflow:hidden!important}.ffb-viewer.has-reader-open{z-index:2147483500}.ffb-viewer.is-zoomed .ffb-stage{align-items:flex-start}.ffb-viewer.is-zoomed .ffb-book-shell{transform-origin:top center;margin-top:12px;margin-bottom:170px}@keyframes ffbReaderSpin{to{transform:rotate(360deg)}}
@media(min-width:901px){.ffb-stage{padding-left:64px;padding-right:64px}.ffb-book-shell{width:min(100%,1320px)}}
@media(max-width:700px){.ffb-reader{padding:0}.ffb-reader-panel{border:0;border-radius:0}.ffb-reader-topbar{min-height:60px;padding:10px 10px 10px 14px}.ffb-reader-title strong{max-width:34vw;font-size:12px}.ffb-reader-tools{gap:4px}.ffb-reader-btn{width:36px;height:36px;border-radius:9px}.ffb-reader-percent{min-width:52px;height:36px;padding:0 7px;font-size:11px}.ffb-reader-page-wrap{padding:22px 44px}.ffb-reader-nav{width:38px;height:54px;border-radius:11px}.ffb-reader-prev{left:3px}.ffb-reader-next{right:3px}.ffb-zoom-value{display:none}}