:root{
  --desk:#1d2a33; --bar:#16212a; --ink:#e8eef2; --muted:#93a4b0;
  --accent:#e0b44c; --line:#2f4150;
  --font:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font-family:var(--font);background:var(--desk);color:var(--ink)}
#app{display:flex;flex-direction:column;height:100%;position:relative;background:var(--desk)}
.bar{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;justify-content:space-between;
  padding:8px 14px;background:var(--bar);border-bottom:1px solid var(--line)}
.group{display:flex;align-items:center;gap:6px}
button,.btn{font:inherit;font-size:14px;color:var(--ink);background:transparent;border:1px solid var(--line);
  border-radius:6px;padding:6px 12px;cursor:pointer;text-decoration:none;min-width:36px}
button:hover,.btn:hover{border-color:var(--accent)}
button:focus-visible,.btn:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button:disabled{opacity:.35;cursor:default}
.btn{background:var(--accent);color:#1b1b1b;border-color:var(--accent);font-weight:600}
.pager{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:14px;padding:0 6px}
#pageInput{width:58px;text-align:center;font:inherit;color:var(--ink);background:var(--desk);
  border:1px solid var(--line);border-radius:6px;padding:5px}
#zoomLabel{min-width:46px;text-align:center;font-size:14px;color:var(--muted)}

#stage{flex:1;overflow:auto;position:relative;display:flex}
#book{margin:auto;flex:none}
.page{background:#fff;overflow:hidden}
.page canvas{width:100%;height:100%;display:block}
.stf__parent{margin:0 auto}

#loader{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;background:var(--desk);z-index:5}
#loader.done{display:none}
#loaderBar{width:min(280px,70%);height:4px;background:var(--line);border-radius:2px;position:relative;overflow:hidden}
#loaderBar::after{content:"";position:absolute;inset:0;width:var(--p,0%);background:var(--accent);transition:width .2s}
#loaderText{color:var(--muted);font-size:14px}

#searchPanel{position:absolute;top:56px;left:12px;width:min(340px,calc(100% - 24px));max-height:60%;
  display:flex;flex-direction:column;background:var(--bar);border:1px solid var(--line);border-radius:8px;
  padding:12px;z-index:10;box-shadow:0 8px 24px rgba(0,0,0,.4)}
#searchPanel[hidden]{display:none}
#searchForm{display:flex;gap:6px}
#searchInput{flex:1;min-width:0;font:inherit;color:var(--ink);background:var(--desk);border:1px solid var(--line);
  border-radius:6px;padding:7px 10px}
#searchStatus{margin:8px 0 4px;font-size:13px;color:var(--muted)}
#searchResults{list-style:none;margin:0;padding:0;overflow:auto}
#searchResults li button{display:block;width:100%;text-align:left;border:0;border-bottom:1px solid var(--line);
  border-radius:0;padding:8px 4px;font-size:13px;line-height:1.4}
#searchResults li button:hover{background:rgba(224,180,76,.1)}
#searchResults b{color:var(--accent)}
#searchResults mark{background:rgba(224,180,76,.35);color:inherit}

@media (max-width:640px){
  .bar{justify-content:center}
  #btnFull{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

#btnMusic[hidden],#volume[hidden]{display:none}
#volume{width:80px;accent-color:var(--accent)}
@media (max-width:640px){#volume{width:60px}}