[hidden]{display:none!important}
:root{--bg:#16181d;--bar:#1f2229;--line:#2f333d;--txt:#e9ecf2;--muted:#9aa3b2;--accent:#9cc2f0;
  --ur:"Noto Nastaliq Urdu","Jameel Noori Nastaleeq",serif}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--txt);font-family:var(--ur);overflow:hidden}
.reader{position:fixed;inset:0;display:flex;flex-direction:column}
svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

/* bars */
.r-top,.r-bottom{background:var(--bar);display:flex;align-items:center;gap:6px;padding:6px 10px;z-index:5;transition:transform .25s ease,opacity .25s ease}
.r-top{border-bottom:1px solid var(--line);padding-top:max(6px,env(safe-area-inset-top))}
.r-bottom{border-top:1px solid var(--line);padding-bottom:max(6px,env(safe-area-inset-bottom))}
.r-title{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:15px;line-height:2.2;padding:0 6px}
.r-tools{display:flex;gap:2px;align-items:center}
.r-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:42px;height:42px;border-radius:10px;background:transparent;border:0;color:var(--txt);cursor:pointer;text-decoration:none;font-family:inherit;font-size:14px}
.r-btn:hover{background:rgba(255,255,255,.07)}
.r-btn:disabled{opacity:.3;cursor:default}
.r-btn:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.r-dl{background:var(--accent);color:#0a2153;padding:0 12px;margin-inline-start:4px}
.r-dl:hover{background:#b9d5f6}
@media (max-width:560px){.r-dl span{display:none}.r-dl{padding:0;min-width:42px}#zoomOut{display:none}}
.only-wide{display:none}
@media (min-width:900px){.only-wide{display:inline-flex}}

.immersive .r-top{transform:translateY(-100%);opacity:0;position:absolute;inset-inline:0;top:0}
.immersive .r-bottom{transform:translateY(100%);opacity:0;position:absolute;inset-inline:0;bottom:0}

/* bottom bar */
.r-bottom input[type=range]{flex:1;min-width:60px;accent-color:var(--accent);height:30px}
.page-jump{display:flex;align-items:center;gap:4px;font-size:14px;color:var(--muted);white-space:nowrap}
.page-jump label{display:flex;align-items:center;gap:6px}
.page-jump input{width:74px;height:34px;border-radius:8px;border:1px solid var(--line);background:#121418;color:var(--txt);text-align:center;font-family:inherit;font-size:14px;padding:0 4px}
.page-jump .of{min-width:34px}
@media (max-width:420px){.page-jump label{font-size:0}.page-jump input{font-size:14px;width:66px}}
.reader[data-dir=ltr] .r-bottom{direction:ltr}
.reader[data-dir=ltr] #prevBtn svg,.reader[data-dir=ltr] #nextBtn svg,.reader[data-dir=ltr] .nav-zone svg{transform:scaleX(-1)}

/* stage */
.stage{flex:1;position:relative;overflow:hidden;display:flex;touch-action:pan-y pinch-zoom;user-select:none;-webkit-user-select:none}
.stage.zoomed{overflow:auto;touch-action:auto}
.spread{margin:auto;display:flex}
.spread-inner{display:flex;align-items:center;justify-content:center;padding:8px;margin:auto}
@media (min-width:600px){.spread-inner{padding:28px}}
.page{position:relative;background:#fff;flex:none;box-shadow:0 1px 3px rgba(0,0,0,.35),0 10px 30px rgba(0,0,0,.35)}
.page canvas{display:block}
.page.busy::after{content:"";position:absolute;top:50%;left:50%;width:30px;height:30px;margin:-15px;border:3px solid #d9dee8;border-top-color:#0f2d6b;border-radius:50%;animation:spin .8s linear infinite}
.pnum{position:absolute;bottom:-26px;left:0;right:0;text-align:center;font-size:12px;color:var(--muted);line-height:2}
.is-double .page.first{box-shadow:0 10px 30px rgba(0,0,0,.35)}
.is-double .page.first::before,.is-double .page.second::before{content:"";position:absolute;top:0;bottom:0;width:36px;pointer-events:none;z-index:1}
/* gutter shading: in RTL first page sits on the right, so its spine edge is on its left */
.spread[dir=rtl] .page.first::before{left:0;background:linear-gradient(90deg,rgba(0,0,0,.16),transparent)}
.spread[dir=rtl] .page.second::before{right:0;background:linear-gradient(270deg,rgba(0,0,0,.16),transparent)}
.spread[dir=ltr] .page.first::before{right:0;background:linear-gradient(270deg,rgba(0,0,0,.16),transparent)}
.spread[dir=ltr] .page.second::before{left:0;background:linear-gradient(90deg,rgba(0,0,0,.16),transparent)}

/* page-turn animation (direction aware) */
.enter-next{animation:inNextR .28s ease-out}
.enter-prev{animation:inPrevR .28s ease-out}
.spread[dir=ltr] .enter-next{animation-name:inNextL}
.spread[dir=ltr] .enter-prev{animation-name:inPrevL}
@keyframes inNextR{from{opacity:.25;transform:translateX(-36px)}to{opacity:1;transform:none}}
@keyframes inPrevR{from{opacity:.25;transform:translateX(36px)}to{opacity:1;transform:none}}
@keyframes inNextL{from{opacity:.25;transform:translateX(36px)}to{opacity:1;transform:none}}
@keyframes inPrevL{from{opacity:.25;transform:translateX(-36px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.spread-inner{animation:none!important}}

/* side tap zones — RTL: next page is on the LEFT */
.nav-zone{position:absolute;top:0;bottom:0;width:22%;max-width:180px;background:transparent;border:0;cursor:pointer;z-index:3;color:#fff;display:flex;align-items:center;padding:0 10px;-webkit-tap-highlight-color:transparent}
.nav-zone span{width:44px;height:44px;border-radius:50%;background:rgba(0,0,0,.45);display:grid;place-items:center;opacity:0;transition:opacity .2s}
.reader[data-dir=rtl] .nav-next{left:0;justify-content:flex-start}
.reader[data-dir=rtl] .nav-prev{right:0;justify-content:flex-end}
.reader[data-dir=ltr] .nav-next{right:0;justify-content:flex-end}
.reader[data-dir=ltr] .nav-prev{left:0;justify-content:flex-start}
@media (hover:hover){.nav-zone:hover span{opacity:1}}
.at-start .nav-prev,.at-end .nav-next{display:none}
.stage.zoomed .nav-zone{display:none}

/* loading */
.loading{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;z-index:4;text-align:center;padding:20px}
.spinner{width:38px;height:38px;border:3px solid #3a3f4b;border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
.loading-text{color:var(--muted);font-size:15px;line-height:2.2}
.loading-bar{width:180px;height:4px;background:#2b2f38;border-radius:4px;overflow:hidden}
.loading-bar span{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}
.r-link{color:var(--accent)}
@keyframes spin{to{transform:rotate(360deg)}}

.toast{position:fixed;left:50%;bottom:86px;transform:translate(-50%,10px);background:rgba(10,12,16,.92);color:#fff;padding:4px 16px;border-radius:999px;font-size:14px;line-height:2.2;opacity:0;pointer-events:none;transition:all .2s;z-index:9;white-space:nowrap}
.toast.show{opacity:1;transform:translate(-50%,0)}