:root{--feoi-bg:#F2FAF9;--feoi-accent:#00877C;--feoi-text:#183C3E;--feoi-toolbar-bg:#FFFFFF;color-scheme:light}
*{box-sizing:border-box}html,body{margin:0;width:100%;min-height:100%;background:var(--feoi-bg);color:var(--feoi-text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}body{overflow-x:hidden}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}button:focus-visible,a:focus-visible{outline:2px solid var(--feoi-accent);outline-offset:3px}[hidden]{display:none!important}
.feoi-viewer{width:100vw;min-height:100vh;min-height:100dvh;height:100vh;height:100dvh;display:flex;flex-direction:column;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);background:var(--feoi-bg)}
.feoi-toolbar{flex:none;min-height:52px;display:flex;align-items:center;justify-content:space-between;padding:6px 22px;background:var(--feoi-toolbar-bg);gap:16px}.feoi-brand{display:flex;align-items:center;flex:1;min-width:0;font-size:16px;font-weight:700;letter-spacing:.025em}.feoi-brand span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.feoi-logo{display:block;max-height:40px;width:auto;max-width:min(180px,100%);object-fit:contain;object-position:left center}.feoi-actions{display:flex;align-items:center;flex:none;gap:5px}.feoi-icon{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:50%;background:transparent;cursor:pointer;flex:none;transition:background-color .18s ease,color .18s ease}.feoi-icon svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.feoi-icon:hover{background:#DCECEB;color:var(--feoi-accent)}.feoi-icon:disabled{opacity:.28;cursor:default}
.feoi-stage{flex:1;min-height:0;position:relative;margin:10px 18px 0;display:flex;align-items:center;justify-content:center}.feoi-book,.feoi-book.stf__parent{width:100%;height:100%;min-width:0!important;min-height:0!important;touch-action:pan-y pinch-zoom;opacity:0;transition:opacity .2s}.feoi-book.is-ready{opacity:1}.feoi-book>.stf__wrapper{height:100%;width:100%;padding-bottom:0!important}.feoi-page{background:#FFFFFF;overflow:hidden;position:relative}.feoi-page img{display:block;width:100%;height:100%;object-fit:contain;pointer-events:none;user-select:none;-webkit-user-drag:none}.feoi-page-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#596156;font-size:13px}.feoi-page img:not([src]){visibility:hidden}.feoi-page.is-rendered .feoi-page-placeholder{display:none}
.feoi-navigation{display:flex;justify-content:center;align-items:center;gap:18px;flex:none;padding:4px 16px}.feoi-counter{font-variant-numeric:tabular-nums;min-width:90px;text-align:center;font-size:13px;letter-spacing:.07em}.feoi-links{display:flex;align-items:center;gap:3px;flex:none}.feoi-social-fill{fill:currentColor;stroke:none}.feoi-status{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;z-index:5;font-size:15px;gap:8px}.feoi-status p{max-width:440px;line-height:1.6}.feoi-spinner{width:26px;height:26px;border:2px solid #DCECEB;border-top-color:var(--feoi-accent);border-radius:50%;animation:feoi-spin .8s linear infinite}.feoi-text-button{display:inline-block;border:1px solid #00877C;border-radius:6px;padding:10px 16px;color:var(--feoi-accent)}.feoi-noscript{text-align:center;padding:12px}.feoi-noscript a{text-decoration:underline}.feoi-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@keyframes feoi-spin{to{transform:rotate(360deg)}}@media(max-width:767px){.feoi-toolbar{padding:3px 8px;min-height:46px;gap:8px}.feoi-actions{gap:2px}.feoi-links{gap:1px}.feoi-toolbar .feoi-icon{width:32px;height:36px}.feoi-toolbar .feoi-icon svg{width:19px;height:19px}.feoi-brand{font-size:14px}.feoi-logo{max-height:34px;max-width:min(140px,100%)}.feoi-stage{margin:6px 4px 0}.feoi-navigation{justify-content:space-between;padding:2px 16px}.feoi-counter{font-size:12px}.feoi-icon{width:40px;height:40px}}@media(max-height:440px){.feoi-toolbar{min-height:36px;padding-top:0;padding-bottom:0}.feoi-logo{max-height:28px}.feoi-stage{margin-top:3px}.feoi-navigation{padding:0}.feoi-navigation .feoi-icon{height:32px}}@media(prefers-reduced-motion:reduce){.feoi-book,.feoi-icon{transition:none}.feoi-spinner{animation-duration:1.8s}}


/* Preserve native pinch zoom despite PageFlip inline styles. */
.feoi-book.stf__parent .stf__wrapper,.feoi-book.stf__parent .stf__block{touch-action:pan-y pinch-zoom!important}
.feoi-toolbar{border-bottom:1px solid #DCECEB}.feoi-navigation{background:var(--feoi-toolbar-bg);border-top:1px solid #DCECEB}.feoi-brand{overflow:hidden}.feoi-brand img{min-width:0}
/* Dark text provides 11.97:1 on white and 11.29:1 on the viewer background. */
.feoi-text-button{color:var(--feoi-text)}