:root{
  --maroon:#5b0c18;
  --maroon-deep:#2b050b;
  --maroon-soft:#7a1425;
  --gold:#c58a18;
  --gold-light:#f0c96e;
  --cream:#fbf3df;
  --paper:#fff9ed;
  --ink:#321417;
  --muted:#7d6257;
  --safe-top:env(safe-area-inset-top,0px);
  --safe-bottom:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;width:100%;height:100%;overflow:hidden;background:#17070a;color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
button,a{font:inherit}
button{border:0}
.app-shell{position:relative;width:100%;height:100dvh;overflow:hidden;background:linear-gradient(160deg,#fffaf0 0%,#f5dfac 46%,#6f1524 100%)}

/* INTRO */
.intro{position:absolute;inset:0;z-index:20;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:calc(24px + var(--safe-top)) 18px calc(26px + var(--safe-bottom));background:
 radial-gradient(circle at 50% 18%,rgba(255,255,255,.95),rgba(255,255,255,0) 36%),
 linear-gradient(165deg,#fffaf0 0%,#f8e8bd 58%,#6b0e1d 138%);transition:opacity .55s ease,transform .65s cubic-bezier(.2,.8,.2,1);transform-origin:center}
.intro.hidden{opacity:0;pointer-events:none;transform:scale(1.035)}
.intro-glow{position:absolute;border-radius:50%;filter:blur(34px);opacity:.5;pointer-events:none}
.glow-one{width:260px;height:260px;background:#efc464;left:-130px;bottom:4%}
.glow-two{width:240px;height:240px;background:#b01840;right:-150px;top:55%}
.mandala{position:absolute;width:260px;height:260px;border:1px solid rgba(197,138,24,.24);border-radius:50%;opacity:.75}
.mandala:before,.mandala:after{content:"";position:absolute;inset:24px;border:1px solid rgba(197,138,24,.24);border-radius:44% 56% 42% 58%/58% 42% 58% 42%;transform:rotate(22deg)}
.mandala:after{inset:50px;transform:rotate(68deg)}
.mandala-a{left:-150px;top:-90px}
.mandala-b{right:-160px;bottom:-100px}
.sparkles span{position:absolute;width:5px;height:5px;border-radius:50%;background:#d4a039;box-shadow:0 0 14px rgba(212,160,57,.9);animation:twinkle 2.8s infinite ease-in-out}
.sparkles span:nth-child(1){left:15%;top:18%;animation-delay:.3s}.sparkles span:nth-child(2){left:82%;top:24%;animation-delay:1.2s}.sparkles span:nth-child(3){left:12%;top:63%;animation-delay:2s}.sparkles span:nth-child(4){left:89%;top:72%;animation-delay:.8s}.sparkles span:nth-child(5){left:73%;top:10%;animation-delay:1.7s}.sparkles span:nth-child(6){left:28%;top:83%;animation-delay:2.3s}
@keyframes twinkle{0%,100%{opacity:.15;transform:scale(.7)}50%{opacity:1;transform:scale(1.55)}}
.intro-content{position:relative;z-index:2;width:min(100%,430px);display:flex;flex-direction:column;align-items:center;text-align:center}
.eyebrow{font-size:11px;letter-spacing:.31em;font-weight:800;color:var(--gold);margin-bottom:7px}
h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(34px,10vw,48px);line-height:.98;margin:0;color:var(--maroon);letter-spacing:-.03em;font-weight:700}
h1 em{display:inline-block;font-style:normal;color:var(--gold);font-size:.72em;margin-left:4px}
.subtitle{margin:9px 0 18px;font-size:12px;text-transform:uppercase;letter-spacing:.23em;font-weight:800;color:#a11a43}
.cover-preview{position:relative;width:min(66vw,254px);aspect-ratio:1055/1491;padding:0;border-radius:11px;overflow:hidden;background:#fff;box-shadow:0 24px 55px rgba(72,18,15,.28),0 3px 12px rgba(80,29,13,.18);transform:perspective(900px) rotateX(1.8deg) rotateY(-1.2deg);cursor:pointer;animation:coverFloat 4.2s ease-in-out infinite}
.cover-preview img{width:100%;height:100%;display:block;object-fit:cover}
.cover-shine{position:absolute;inset:-30% -70%;background:linear-gradient(110deg,transparent 42%,rgba(255,255,255,.28) 49%,transparent 56%);transform:translateX(-36%);animation:shine 4.8s 1.2s infinite}
@keyframes coverFloat{0%,100%{transform:perspective(900px) rotateX(1.8deg) rotateY(-1.2deg) translateY(0)}50%{transform:perspective(900px) rotateX(.7deg) rotateY(.8deg) translateY(-6px)}}
@keyframes shine{0%,62%{transform:translateX(-40%)}85%,100%{transform:translateX(48%)}}
.welcome-copy{max-width:350px;margin:18px 0 15px;font-family:Georgia,"Times New Roman",serif;font-size:14px;line-height:1.5;color:#6d3c32}
.open-button{height:52px;min-width:230px;border-radius:999px;padding:0 22px;display:flex;align-items:center;justify-content:center;gap:10px;background:linear-gradient(135deg,#741224,#4e0814);color:#fff;font-weight:800;letter-spacing:.02em;box-shadow:0 12px 28px rgba(91,12,24,.25),inset 0 1px 0 rgba(255,255,255,.22);cursor:pointer}
.open-button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.swipe-hint{font-size:11px;color:#8e6d5d;margin-top:10px;letter-spacing:.04em}

/* READER */
.reader{position:absolute;inset:0;display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;opacity:0;visibility:hidden;transform:translateY(10px);background:radial-gradient(circle at 50% 2%,#fff7e5 0,#eed69b 46%,#5b0c18 138%);transition:opacity .45s ease,transform .45s ease;z-index:10}
.reader.active{opacity:1;visibility:visible;transform:none}
.reader-topbar{height:calc(56px + var(--safe-top));padding:var(--safe-top) 10px 0;display:grid;grid-template-columns:52px 1fr 104px;align-items:center;border-bottom:1px solid rgba(92,35,21,.12);background:rgba(255,249,236,.86);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);z-index:6}
.reader-brand{text-align:center;line-height:1.05;color:var(--maroon);font-weight:900;letter-spacing:.11em;font-size:12px}
.reader-brand small{display:block;margin-top:3px;color:var(--gold);font-size:9px;letter-spacing:.18em}
.top-actions{display:flex;justify-content:flex-end;gap:3px}
.icon-btn{width:44px;height:44px;display:grid;place-items:center;background:transparent;color:var(--maroon);border-radius:50%;cursor:pointer}
.icon-btn:active{background:rgba(91,12,24,.08)}
.icon-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.book-area{position:relative;min-height:0;display:flex;align-items:center;justify-content:center;padding:10px 10px 8px;overflow:hidden}
.book-stage{position:relative;height:100%;max-height:100%;aspect-ratio:1055/1491;max-width:100%;perspective:1600px;transform-style:preserve-3d;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.page-shadow{position:absolute;inset:1.2% 2% -1.2%;background:rgba(58,22,11,.26);filter:blur(16px);border-radius:10px;transform:translateY(9px) scale(.98)}
.page-image{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;border-radius:7px;box-shadow:0 4px 18px rgba(55,15,8,.17);backface-visibility:hidden;-webkit-backface-visibility:hidden;transform-origin:left center;will-change:transform,opacity;pointer-events:none;background:#fff}
.page-image.current{z-index:3;opacity:1;transform:rotateY(0deg)}
.page-image.incoming{z-index:2;opacity:0;transform:rotateY(0deg)}
.page-gloss{position:absolute;z-index:4;pointer-events:none;inset:0;border-radius:7px;background:linear-gradient(90deg,rgba(255,255,255,.08),transparent 12%,transparent 82%,rgba(76,19,10,.06));mix-blend-mode:soft-light}
.book-stage.flip-next .current{animation:flipOutNext .46s cubic-bezier(.55,.08,.34,.98) forwards}
.book-stage.flip-next .incoming{opacity:1;animation:flipInNext .46s cubic-bezier(.55,.08,.34,.98) forwards}
.book-stage.flip-prev .current{transform-origin:right center;animation:flipOutPrev .46s cubic-bezier(.55,.08,.34,.98) forwards}
.book-stage.flip-prev .incoming{transform-origin:right center;opacity:1;animation:flipInPrev .46s cubic-bezier(.55,.08,.34,.98) forwards}
@keyframes flipOutNext{0%{transform:rotateY(0);filter:brightness(1)}48%{filter:brightness(.78)}100%{transform:rotateY(-88deg);filter:brightness(.64);opacity:.25}}
@keyframes flipInNext{0%{transform:rotateY(88deg);opacity:.25;filter:brightness(.7)}55%{filter:brightness(.95)}100%{transform:rotateY(0);opacity:1;filter:brightness(1)}}
@keyframes flipOutPrev{0%{transform:rotateY(0);filter:brightness(1)}48%{filter:brightness(.78)}100%{transform:rotateY(88deg);filter:brightness(.64);opacity:.25}}
@keyframes flipInPrev{0%{transform:rotateY(-88deg);opacity:.25;filter:brightness(.7)}55%{filter:brightness(.95)}100%{transform:rotateY(0);opacity:1;filter:brightness(1)}}
.tap-zone{position:absolute;z-index:5;top:0;bottom:0;width:28%;background:transparent;opacity:0;cursor:pointer}
.tap-left{left:0}.tap-right{right:0}
.reader-controls{display:grid;grid-template-columns:60px 1fr 60px;align-items:center;gap:8px;padding:4px 16px 9px}
.nav-btn{width:48px;height:48px;margin:auto;border-radius:50%;display:grid;place-items:center;background:rgba(255,249,236,.82);color:var(--maroon);box-shadow:0 6px 14px rgba(91,12,24,.12);border:1px solid rgba(197,138,24,.26);cursor:pointer}
.nav-btn[disabled]{opacity:.28;box-shadow:none}
.nav-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.page-status{display:flex;flex-direction:column;align-items:center;gap:8px}
.page-count{font-size:11px;letter-spacing:.08em;color:#865f4e}.page-count strong{font-size:18px;color:var(--maroon);letter-spacing:.02em}.page-count span{margin-left:4px}
.progress-track{width:min(100%,180px);height:3px;border-radius:99px;background:rgba(91,12,24,.12);overflow:hidden}.progress-track span{display:block;height:100%;width:16.666%;border-radius:inherit;background:linear-gradient(90deg,var(--gold),#e6b24a);transition:width .35s ease}
.action-bar{height:calc(63px + var(--safe-bottom));padding:6px 15px var(--safe-bottom);display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:rgba(64,8,16,.96);box-shadow:0 -8px 22px rgba(43,5,11,.16);z-index:8}
.action-bar button,.action-bar a{display:flex;align-items:center;justify-content:center;gap:7px;border-radius:13px;background:rgba(255,255,255,.08);color:#fff;text-decoration:none;font-size:11px;font-weight:750;letter-spacing:.02em;cursor:pointer}
.action-bar button:active,.action-bar a:active{background:rgba(255,255,255,.14)}
.action-bar svg{width:18px;height:18px;fill:none;stroke:var(--gold-light);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.end-toast{position:absolute;left:50%;bottom:calc(126px + var(--safe-bottom));transform:translate(-50%,18px);min-width:250px;max-width:84%;padding:13px 16px;border-radius:16px;background:rgba(64,8,16,.94);color:#fff;box-shadow:0 14px 32px rgba(43,5,11,.25);text-align:center;opacity:0;pointer-events:none;transition:.28s ease;z-index:12}.end-toast.show{opacity:1;transform:translate(-50%,0)}.end-toast strong{display:block;font-family:Georgia,"Times New Roman",serif;font-size:16px;color:#ffdf91}.end-toast span{display:block;margin-top:3px;font-size:11px;color:#f3e5dc}
.toast{position:absolute;z-index:50;left:50%;bottom:calc(84px + var(--safe-bottom));transform:translate(-50%,12px);padding:10px 14px;border-radius:999px;background:#2e0910;color:#fff;font-size:12px;opacity:0;pointer-events:none;transition:.25s ease;white-space:nowrap;box-shadow:0 10px 28px rgba(0,0,0,.25)}.toast.show{opacity:1;transform:translate(-50%,0)}

@media (min-width:700px){
  body{background:#2a0a10}
  .app-shell{width:min(100%,520px);margin:0 auto;box-shadow:0 0 70px rgba(0,0,0,.35)}
}
@media (max-height:700px){
  .eyebrow{margin-bottom:4px}.subtitle{margin:5px 0 10px}.cover-preview{width:min(46vw,190px)}.welcome-copy{font-size:12px;margin:10px 0}.open-button{height:46px}.swipe-hint{margin-top:6px}.book-area{padding-top:6px}
}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.001ms!important}}