/* ===================== PageTurn · design system ===================== */
:root{
  --bg:#f6f5fb;--card:#fff;--tx:#1c1b29;--mut:#6b6a80;--pri:#4f46e5;--pri2:#7c3aed;--bd:#e4e2f0;
  --sh:0 4px 16px rgba(30,20,80,.09);--sh2:0 14px 34px rgba(30,20,80,.2);--glass:rgba(255,255,255,.78);
  --ease:cubic-bezier(.2,.8,.2,1);--spring:cubic-bezier(.34,1.56,.64,1);
  --rt:calc(56px + env(safe-area-inset-top));--rb:calc(64px + env(safe-area-inset-bottom));
}
[data-theme=dark]{--bg:#0f0e17;--card:#1a1927;--tx:#eceaf8;--mut:#9a98b3;--bd:#2b2940;--sh:0 4px 16px rgba(0,0,0,.45);--sh2:0 14px 34px rgba(0,0,0,.6);--glass:rgba(26,25,39,.8)}
[data-accent=rose]{--pri:#e11d48;--pri2:#f97316}
[data-accent=emerald]{--pri:#059669;--pri2:#0d9488}
[data-accent=amber]{--pri:#d97706;--pri2:#dc2626}
[data-accent=sky]{--pri:#0284c7;--pri2:#6366f1}
*{box-sizing:border-box;margin:0;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--tx);padding-bottom:calc(76px + env(safe-area-inset-bottom));transition:background .4s,color .4s;overflow-x:hidden}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid color-mix(in srgb,var(--pri) 60%,transparent);outline-offset:2px;border-radius:8px}

/* ---------- Splash ---------- */
#splash{position:fixed;inset:0;z-index:200;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;transition:opacity .5s,transform .6s var(--ease),visibility .6s}
#splash.hide{opacity:0;transform:scale(1.08);visibility:hidden}
.splash-logo{width:128px;height:128px;border-radius:32px;background:rgba(255,255,255,.16);display:grid;place-items:center;animation:splashPop .8s var(--spring) both,float 3s ease-in-out .8s infinite;backdrop-filter:blur(6px)}
.splash-logo .sp-book{fill:#fff;animation:flipIn .9s var(--ease) .15s both;transform-origin:center;transform-box:fill-box}
#splash h1{font-size:30px;letter-spacing:.5px;animation:fadeUp .6s var(--ease) .4s both;margin-top:10px}
#splash p{opacity:.85;animation:fadeUp .6s var(--ease) .55s both}
.splash-bar{width:140px;height:4px;border-radius:4px;background:rgba(255,255,255,.25);overflow:hidden;margin-top:18px}
.splash-bar i{display:block;height:100%;background:#fff;border-radius:4px;animation:load 1.1s var(--ease) both}
@keyframes splashPop{from{transform:scale(.3) rotate(-12deg);opacity:0}to{transform:none;opacity:1}}
@keyframes flipIn{from{transform:rotateY(90deg) scale(.6);opacity:0}to{transform:none;opacity:1}}
@keyframes load{from{width:0}to{width:100%}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes float{50%{transform:translateY(-8px)}}

#offline{position:fixed;top:0;left:0;right:0;z-index:15;background:#b45309;color:#fff;text-align:center;font-size:12px;padding:calc(4px + env(safe-area-inset-top)) 8px 4px;animation:slideDown .35s var(--ease)}
@keyframes slideDown{from{transform:translateY(-100%)}}

/* ---------- Header ---------- */
.top{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;box-shadow:0 2px 16px rgba(0,0,0,.18);transition:background .4s}
.top h1{font-size:20px;display:flex;align-items:center;gap:8px}
.logo{display:inline-block;animation:wiggle 5s ease-in-out 2s infinite}
@keyframes wiggle{0%,92%,100%{transform:none}94%{transform:rotate(-14deg)}97%{transform:rotate(12deg)}}
.top-r{display:flex;gap:8px;align-items:center}
.top button{background:rgba(255,255,255,.2);border:0;color:#fff;min-width:38px;height:38px;border-radius:19px;font-size:18px;position:relative;overflow:hidden;transition:transform .2s var(--spring),background .2s}
.top button:hover{background:rgba(255,255,255,.3)}
.top button:active{transform:scale(.86)}
.ti{display:inline-block;transition:transform .6s var(--spring)}
#themeBtn.rot .ti{transform:rotate(360deg)}
.streak{display:flex;align-items:center;gap:4px;padding:0 12px;font-size:14px}
.streak b{font-variant-numeric:tabular-nums}
.streak.on .flame{display:inline-block;animation:flame 1.2s ease-in-out infinite;filter:drop-shadow(0 0 6px #fb923c)}
.streak:not(.on) .flame{filter:grayscale(1);opacity:.7}
@keyframes flame{50%{transform:scale(1.2) rotate(-6deg)}}

main{max-width:900px;margin:0 auto;padding:14px;perspective:1200px}
.view{display:none}
.view.active{display:block;animation:viewIn .42s var(--ease)}
@keyframes viewIn{from{opacity:0;transform:translateX(var(--dx,0px)) translateY(10px)}to{opacity:1;transform:none}}
h2{font-size:22px}h3{margin:18px 0 8px;font-size:17px;display:flex;align-items:center;gap:8px}
.count{font-size:12px;font-weight:600;color:var(--mut);background:var(--bd);padding:1px 8px;border-radius:10px}
.note{color:var(--mut);font-size:13px;margin:6px 0}

/* ---------- Inputs ---------- */
input[type=search],input[type=text],input:not([type]),select{width:100%;padding:12px 14px;border:1px solid var(--bd);border-radius:12px;background:var(--card);margin:6px 0;transition:border-color .2s,box-shadow .25s,transform .25s var(--ease)}
input:focus,select:focus{outline:0;border-color:var(--pri);box-shadow:0 0 0 4px color-mix(in srgb,var(--pri) 20%,transparent)}
.search-wrap{position:relative}
.search-wrap span{position:absolute;left:14px;top:50%;transform:translateY(-50%);opacity:.55;pointer-events:none;transition:transform .3s var(--spring)}
.search-wrap input{padding-left:40px}
.search-wrap:focus-within span{transform:translateY(-50%) scale(1.25) rotate(-12deg)}

/* ---------- Buttons / ripple ---------- */
.btn,.chip,.icon-btn,nav button,.rbar button{position:relative;overflow:hidden}
.btn{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;border:0;padding:9px 16px;border-radius:10px;font-weight:600;box-shadow:0 4px 12px color-mix(in srgb,var(--pri) 35%,transparent);transition:transform .2s var(--spring),box-shadow .2s,filter .2s}
.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn:active{transform:scale(.93);box-shadow:none}
.btn.alt{background:transparent;color:var(--pri);border:1px solid var(--pri);box-shadow:none}
.btn.alt:hover{background:color-mix(in srgb,var(--pri) 10%,transparent)}
.btn.sm{padding:6px 10px;font-size:13px}
.btn.block{width:100%;padding:12px}
.btn.danger{background:#dc2626;box-shadow:0 4px 12px rgba(220,38,38,.3)}
.btn.alt.danger{background:transparent;color:#dc2626;border-color:#dc2626;box-shadow:none}
.icon-btn{border:1px solid var(--bd);background:var(--card);width:42px;height:42px;border-radius:12px;font-size:18px;flex:none;transition:transform .25s var(--spring)}
.icon-btn:active{transform:scale(.85) rotate(-8deg)}
.rip{position:absolute;border-radius:50%;background:currentColor;opacity:.28;transform:scale(0);pointer-events:none;animation:rip .6s ease-out forwards}
@keyframes rip{to{transform:scale(1);opacity:0}}

/* ---------- Chips / toolbar ---------- */
.chips{display:flex;gap:8px;overflow-x:auto;padding:6px 2px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;border:1px solid var(--bd);background:var(--card);padding:7px 14px;border-radius:20px;transition:background .25s,color .25s,transform .25s var(--spring),box-shadow .25s}
.chip:active{transform:scale(.92)}
.chip.on{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;border-color:transparent;box-shadow:0 4px 12px color-mix(in srgb,var(--pri) 35%,transparent);animation:chipPop .4s var(--spring)}
@keyframes chipPop{from{transform:scale(.88)}}
.row-head{display:flex;justify-content:space-between;align-items:center}
.toolbar{display:flex;gap:8px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.toolbar .chips{flex:1;min-width:200px}
.tools{display:flex;gap:8px;align-items:center}
.tools select{width:auto;margin:0;padding:10px 10px}
.tools .icon-btn{height:42px}

/* ---------- Hero ---------- */
#hero{margin-bottom:12px}
.hero{position:relative;overflow:hidden;border-radius:22px;padding:18px;color:#fff;background:linear-gradient(135deg,var(--pri),var(--pri2));box-shadow:var(--sh2);display:flex;gap:14px;align-items:center;animation:heroIn .6s var(--spring)}
@keyframes heroIn{from{opacity:0;transform:scale(.94) translateY(14px)}}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.14);animation:float 6s ease-in-out infinite}
.hero::before{width:160px;height:160px;right:-40px;top:-60px}
.hero::after{width:100px;height:100px;left:30%;bottom:-50px;animation-delay:-3s}
.hero>*{position:relative;z-index:1}
.hero img{width:78px;aspect-ratio:3/4.2;object-fit:cover;border-radius:8px;box-shadow:0 8px 20px rgba(0,0,0,.35);flex:none;transform:rotate(-4deg);transition:transform .4s var(--spring)}
.hero:hover img{transform:rotate(0) scale(1.05)}
.hero .hb{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.hero small{opacity:.85}
.hero h2{font-size:18px;line-height:1.2;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.hero .btn{background:#fff;color:var(--pri);align-self:flex-start;margin-top:6px;box-shadow:0 4px 14px rgba(0,0,0,.2)}
.hero .ring-wrap{flex:none}
.ring{transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:6;stroke-linecap:round}
.ring .bg{stroke:rgba(255,255,255,.25)}
.ring .fg{stroke:#fff;stroke-dasharray:var(--c);stroke-dashoffset:var(--o);animation:ring 1.1s var(--ease) .2s both}
.ring-wrap{position:relative;display:grid;place-items:center}
.ring-wrap b{position:absolute;font-size:15px}
.ring-wrap.dark .bg{stroke:var(--bd)}.ring-wrap.dark .fg{stroke:var(--pri)}
@keyframes ring{from{stroke-dashoffset:var(--c)}}

/* ---------- Shelves / cards ---------- */
.shelf{display:flex;gap:12px;overflow-x:auto;padding:4px 2px 14px;scroll-snap-type:x proximity;scrollbar-width:none}
.shelf::-webkit-scrollbar{display:none}
.shelf .card{flex:none;width:140px;scroll-snap-align:start}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}
.card{position:relative;background:var(--card);border-radius:14px;box-shadow:var(--sh);overflow:hidden;display:flex;flex-direction:column;transition:transform .3s var(--spring),box-shadow .3s;cursor:pointer}
.card:hover{transform:translateY(-5px);box-shadow:var(--sh2)}
.card:active{transform:scale(.96)}
.anim .card{animation:cardIn .55s var(--spring) both;animation-delay:calc(var(--i,0) * 50ms)}
@keyframes cardIn{from{opacity:0;transform:translateY(26px) scale(.9)}}
.cover{position:relative;overflow:hidden}
.cover img{width:100%;aspect-ratio:3/4.2;object-fit:cover;display:block;transition:transform .5s var(--ease)}
.card:hover .cover img{transform:scale(1.06)}
.cover::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.35) 50%,transparent 60%);transform:translateX(-120%);transition:transform .7s}
.card:hover .cover::after{transform:translateX(120%)}
.cover::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:linear-gradient(90deg,rgba(0,0,0,.3),transparent);z-index:1}
.fav{position:absolute;top:6px;right:6px;z-index:2;width:30px;height:30px;border-radius:50%;border:0;background:rgba(0,0,0,.4);color:#fff;font-size:15px;backdrop-filter:blur(4px);transition:transform .25s var(--spring);display:grid;place-items:center}
.fav:active{transform:scale(.8)}
.fav.on{color:#fb7185}
.fav.pop{animation:heart .55s var(--spring)}
@keyframes heart{0%{transform:scale(1)}30%{transform:scale(1.6) rotate(-10deg)}60%{transform:scale(.9)}100%{transform:scale(1)}}
.card .meta{padding:8px 10px 10px;display:flex;flex-direction:column;gap:3px;flex:1;min-width:0}
.card b{font-size:14px;line-height:1.2}.card small{color:var(--mut)}
.card .acts{display:flex;gap:6px;margin-top:auto;padding-top:6px}
.badge{align-self:flex-start;font-size:11px;padding:2px 8px;border-radius:10px;background:var(--bd);color:var(--mut)}
.badge.dev{background:#d1fae5;color:#065f46}.badge.prem{background:#fef3c7;color:#92400e}
.badge.done{background:#dbeafe;color:#1e40af}
.bar{height:5px;background:var(--bd);border-radius:3px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--pri),var(--pri2));border-radius:3px;animation:barIn .9s var(--ease) both;transform-origin:left}
@keyframes barIn{from{transform:scaleX(0)}}
.grid.list{grid-template-columns:1fr}
.grid.list .card{flex-direction:row}
.grid.list .cover{width:96px;flex:none}
.grid.list .cover img{height:100%;aspect-ratio:auto}
.grid.list .fav{top:auto;bottom:6px;right:auto;left:6px;width:26px;height:26px}
.skel{border-radius:14px;height:230px;background:linear-gradient(100deg,var(--card) 30%,var(--bd) 50%,var(--card) 70%);background-size:300% 100%;animation:shimmer 1.2s linear infinite}
@keyframes shimmer{from{background-position:100% 0}to{background-position:0 0}}
.ad-slot{margin:14px 0;padding:18px;text-align:center;border:1px dashed var(--mut);border-radius:12px;color:var(--mut);font-size:12px}
.ad-slot::before{content:"Advertisement";display:block;font-size:10px;text-transform:uppercase;letter-spacing:1px}
.empty{text-align:center;color:var(--mut);padding:26px 8px;animation:fadeUp .5s var(--ease)}
.empty .big{display:block;font-size:38px;margin-bottom:6px;animation:float 3s ease-in-out infinite}

/* ---------- Drop zone ---------- */
.dropzone{display:flex;flex-direction:column;align-items:center;gap:2px;padding:18px;margin:10px 0;border:2px dashed color-mix(in srgb,var(--pri) 55%,transparent);border-radius:16px;color:var(--pri);background:color-mix(in srgb,var(--pri) 6%,transparent);cursor:pointer;transition:transform .25s var(--spring),background .25s,border-color .25s}
.dropzone:hover{background:color-mix(in srgb,var(--pri) 12%,transparent)}
.dropzone:active{transform:scale(.98)}
.dropzone small{color:var(--mut)}
.dz-ico{font-size:24px;animation:bob 1.6s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-5px)}}
#dropveil{position:fixed;inset:0;z-index:90;background:color-mix(in srgb,var(--pri) 80%,#000);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:700;animation:fade .2s}
#dropveil div{display:flex;flex-direction:column;align-items:center;gap:10px;border:3px dashed #fff;border-radius:28px;padding:50px 40px;animation:float 1.5s ease-in-out infinite}
#dropveil span{font-size:50px}
@keyframes fade{from{opacity:0}}

/* ---------- Profile ---------- */
.profile-card{display:flex;gap:14px;align-items:center;background:var(--card);padding:14px;border-radius:16px;box-shadow:var(--sh);margin-bottom:8px}
.pc-body{flex:1;min-width:0}
.pc-body input{margin:0 0 4px}
.name-row{display:flex;gap:8px;align-items:center}
.name-row input{flex:1;min-width:0}
.name-row .btn{flex:none;margin-bottom:4px;animation:okIn .35s var(--spring)}
@keyframes okIn{0%{opacity:0;transform:translateX(-10px) scale(.6)}100%{opacity:1;transform:none}}
.name-row .btn[hidden]{display:none}
.avatar{flex:none;width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;display:grid;place-items:center;font-size:24px;font-weight:700;transition:transform .4s var(--spring)}
.avatar:active{transform:rotate(360deg) scale(1.1)}
.avatar.bump{animation:heart .4s var(--spring)}
.list-item{display:flex;justify-content:space-between;align-items:center;gap:8px;background:var(--card);padding:10px 12px;border-radius:12px;margin:8px 0;animation:slideIn .45s var(--spring) both;animation-delay:calc(var(--i,0) * 45ms)}
@keyframes slideIn{from{opacity:0;transform:translateX(-24px)}}
.list-item.gone{animation:gone .35s forwards}
@keyframes gone{to{opacity:0;transform:translateX(60px);height:0;padding:0;margin:0}}
.list-item div{min-width:0}.list-item span{display:block;color:var(--mut);font-size:12px}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:10px 0}
.tile{background:var(--card);border-radius:16px;padding:12px 8px;text-align:center;box-shadow:var(--sh);animation:cardIn .55s var(--spring) both;animation-delay:calc(var(--i,0) * 70ms)}
.tile b{display:block;font-size:22px;font-variant-numeric:tabular-nums;background:linear-gradient(135deg,var(--pri),var(--pri2));-webkit-background-clip:text;background-clip:text;color:transparent}
.tile small{color:var(--mut);font-size:12px}
.panel{background:var(--card);border-radius:16px;padding:14px;box-shadow:var(--sh);margin:10px 0;animation:cardIn .55s var(--spring) both}
.panel h4{font-size:14px;margin-bottom:8px;color:var(--mut);font-weight:600}
.chart{display:flex;align-items:flex-end;gap:8px;height:120px}
.chart .col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:4px;font-size:11px;color:var(--mut)}
.chart .col i{display:block;width:100%;min-height:4px;height:var(--h);border-radius:8px 8px 3px 3px;background:linear-gradient(180deg,var(--pri2),var(--pri));transform-origin:bottom;animation:grow .8s var(--spring) both;animation-delay:calc(var(--i,0) * 70ms)}
.chart .col.today i{box-shadow:0 0 0 2px var(--card),0 0 0 4px var(--pri)}
.chart .col em{font-style:normal;font-size:10px;color:var(--tx);font-variant-numeric:tabular-nums}
@keyframes grow{from{transform:scaleY(0)}}
.goal{display:flex;align-items:center;gap:14px}
.goal select{width:auto;margin:0}
label.row{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--card);padding:12px;border-radius:12px;margin:8px 0;animation:slideIn .45s var(--spring) both;animation-delay:calc(var(--i,0) * 45ms)}
label.row select{width:auto;margin:0;padding:8px}
.switch{appearance:none;width:46px;height:26px;border-radius:13px;background:var(--bd);position:relative;cursor:pointer;transition:background .3s;flex:none;border:0;padding:0;margin:0}
.switch::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:0 2px 5px rgba(0,0,0,.3);transition:transform .35s var(--spring)}
.switch:checked{background:var(--pri)}
.switch:checked::after{transform:translateX(20px)}
.swatches{display:flex;gap:10px}
.sw{width:28px;height:28px;border-radius:50%;border:0;background:linear-gradient(135deg,var(--a),var(--b));transition:transform .3s var(--spring),box-shadow .3s}
.sw.on{box-shadow:0 0 0 3px var(--card),0 0 0 5px var(--a);transform:scale(1.15)}
.sw:active{transform:scale(.8)}
.fcol{display:flex;flex-direction:column;gap:8px}
.btnrow{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}

/* ---------- Bottom nav ---------- */
nav{position:fixed;bottom:0;left:0;right:0;z-index:20;display:flex;background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--bd);padding-bottom:env(safe-area-inset-bottom)}
nav button{flex:1;border:0;background:none;padding:9px 0 7px;font-size:11px;color:var(--mut);transition:color .25s}
nav button span{display:block;font-size:21px;transition:transform .4s var(--spring)}
nav button.on{color:var(--pri);font-weight:700}
nav button.on span{transform:translateY(-3px) scale(1.18)}
nav button:active span{transform:scale(.8)}
.nav-ind{position:absolute;top:0;left:0;width:25%;height:3px;display:flex;justify-content:center;transform:translateX(calc(var(--i,0) * 100%));transition:transform .45s var(--spring)}
.nav-ind::after{content:"";width:34px;height:3px;border-radius:0 0 4px 4px;background:linear-gradient(90deg,var(--pri),var(--pri2))}

/* ---------- Reader ---------- */
#reader{position:fixed;inset:0;z-index:50;background:#111;color:#eee;display:flex;flex-direction:column;animation:readerIn .5s var(--ease)}
#reader.closing{animation:readerOut .3s var(--ease) forwards}
@keyframes readerIn{from{opacity:0;transform:scale(.92) translateY(40px);border-radius:30px}}
@keyframes readerOut{to{opacity:0;transform:scale(.95) translateY(60px)}}
.rbar{display:flex;align-items:center;gap:8px;padding:8px 10px;background:rgba(28,27,41,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);position:absolute;left:0;right:0;z-index:5;transition:transform .4s var(--ease),opacity .3s}
#rtop{top:0;padding-top:calc(8px + env(safe-area-inset-top))}
#rbot{bottom:0;padding-bottom:calc(10px + env(safe-area-inset-bottom))}
.rbar button{background:#2d2b45;border:0;color:#fff;min-width:42px;height:40px;border-radius:10px;font-size:18px;transition:transform .2s var(--spring),background .25s}
.rbar button:active{transform:scale(.82)}
#rTitle{flex:1;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}
#pg{flex:1;font-size:13px;white-space:nowrap;font-variant-numeric:tabular-nums}
#bmBtn.on{background:var(--pri2);animation:heart .5s var(--spring)}
#prog{position:absolute;left:0;right:0;top:0;height:3px;background:#333}
#prog i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--pri),var(--pri2));transition:width .45s var(--ease)}
#slider{position:absolute;left:14px;right:14px;bottom:calc(64px + env(safe-area-inset-bottom));z-index:5;margin:0;width:auto;padding:0;appearance:none;height:24px;background:transparent;transition:transform .4s var(--ease),opacity .3s;cursor:pointer}
#slider::-webkit-slider-runnable-track{height:5px;border-radius:3px;background:linear-gradient(90deg,var(--pri2) var(--v,0%),#444 var(--v,0%))}
#slider::-webkit-slider-thumb{appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;margin-top:-6.5px;box-shadow:0 2px 8px rgba(0,0,0,.5);transition:transform .2s var(--spring)}
#slider:active::-webkit-slider-thumb{transform:scale(1.4)}
#slider::-moz-range-track{height:5px;border-radius:3px;background:#444}
#slider::-moz-range-progress{height:5px;border-radius:3px;background:var(--pri2)}
#slider::-moz-range-thumb{width:18px;height:18px;border:0;border-radius:50%;background:#fff}
#stage{position:absolute;inset:0;overflow:auto;background:#2a2a2a;perspective:1600px;padding:calc(var(--rt) + 4px) 0 calc(var(--rb) + 32px);transition:padding .4s var(--ease);touch-action:pan-y;overscroll-behavior:contain}
#stage.zoomed{touch-action:pan-x pan-y}
#reader.focus #stage{padding:8px 0}
#reader.focus #rtop{transform:translateY(-110%);opacity:0}
#reader.focus #rbot,#reader.focus #slider{transform:translateY(130%);opacity:0}
#pagewrap{position:relative;margin:0 auto;width:max-content;transform-origin:center top;box-shadow:0 10px 40px rgba(0,0,0,.55)}
#canvas{display:block;background:#fff}
#hl{position:absolute;inset:0;pointer-events:none;mix-blend-mode:multiply}
#reader.night #canvas{filter:invert(1) hue-rotate(180deg)}
#reader.night #hl{mix-blend-mode:normal;opacity:.5}
#reader.sepia #canvas{filter:sepia(.55) contrast(.95) brightness(.97)}
#pagewrap.in-next{animation:inNext .45s var(--ease)}
#pagewrap.in-prev{animation:inPrev .45s var(--ease)}
@keyframes inNext{from{opacity:0;transform:translateX(70px) rotateY(-18deg)}}
@keyframes inPrev{from{opacity:0;transform:translateX(-70px) rotateY(18deg)}}
#pagewrap.bounce{animation:bounce .35s var(--spring)}
@keyframes bounce{30%{transform:translateX(-14px)}60%{transform:translateX(8px)}}
.spin{position:absolute;left:50%;top:50%;width:38px;height:38px;margin:-19px;border:4px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;z-index:3}
@keyframes spin{to{transform:rotate(360deg)}}
#zoomHint{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(0,0,0,.7);color:#fff;padding:8px 18px;border-radius:20px;font-size:18px;z-index:6;pointer-events:none;animation:hint .9s forwards}
@keyframes hint{0%{opacity:0;transform:translate(-50%,-50%) scale(.7)}15%{opacity:1;transform:translate(-50%,-50%) scale(1)}80%{opacity:1}100%{opacity:0}}
.tapflash{position:fixed;width:70px;height:70px;margin:-35px;border-radius:50%;background:rgba(255,255,255,.3);pointer-events:none;z-index:6;animation:rip .5s ease-out forwards}

/* ---------- Modal / sheet ---------- */
#modal{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.5);backdrop-filter:blur(3px);display:flex;align-items:flex-end;justify-content:center;animation:fade .25s}
#modal.closing{animation:fadeOut .22s forwards}
@keyframes fadeOut{to{opacity:0}}
.sheet{background:var(--card);width:100%;max-width:520px;border-radius:22px 22px 0 0;padding:20px;animation:up .45s var(--spring);display:flex;flex-direction:column;gap:8px;max-height:88vh;overflow:auto;padding-bottom:calc(20px + env(safe-area-inset-bottom))}
#modal.closing .sheet{animation:down .22s ease-in forwards}
@keyframes up{from{transform:translateY(100%)}to{transform:none}}
@keyframes down{to{transform:translateY(100%)}}
.sheet::before{content:"";align-self:center;width:42px;height:4px;border-radius:2px;background:var(--bd);margin:-8px 0 4px;flex:none}
.sheet h3{margin:0}
.detail{display:flex;gap:14px}
.detail img{width:110px;border-radius:10px;box-shadow:var(--sh2);align-self:flex-start;animation:cardIn .6s var(--spring) both}
.detail .dm{display:flex;flex-direction:column;gap:6px;min-width:0;flex:1}
.detail dl{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;font-size:13px}
.detail dt{color:var(--mut)}
.tabs2{display:flex;gap:6px;background:var(--bg);padding:4px;border-radius:12px}
.tabs2 button{flex:1;border:0;background:transparent;padding:8px;border-radius:9px;font-weight:600;color:var(--mut);transition:background .25s,color .25s,transform .2s var(--spring)}
.tabs2 button.on{background:var(--card);color:var(--pri);box-shadow:var(--sh)}
.tabs2 button:active{transform:scale(.94)}
.toc-item{display:flex;justify-content:space-between;gap:10px;width:100%;text-align:left;border:0;background:transparent;padding:10px 8px;border-radius:10px;animation:slideIn .4s var(--spring) both;animation-delay:calc(var(--i,0) * 25ms);transition:background .2s}
.toc-item:hover,.toc-item:active{background:var(--bg)}
.toc-item span{color:var(--mut);font-size:12px;flex:none}
.hit{display:block;width:100%;text-align:left;border:0;background:var(--bg);padding:10px 12px;border-radius:12px;margin:6px 0;animation:slideIn .4s var(--spring) both;animation-delay:calc(var(--i,0) * 30ms)}
.hit small{color:var(--pri);font-weight:700;display:block}
.hit mark{background:#fde68a;color:#000;border-radius:3px;padding:0 2px}
.searchbar{display:flex;gap:8px}
.searchbar input{margin:0}
.progressline{height:3px;background:var(--bd);border-radius:2px;overflow:hidden}
.progressline i{display:block;height:100%;background:var(--pri);transition:width .2s}
.pgbox{font-size:28px;text-align:center;font-weight:700}

#toast{position:fixed;left:50%;bottom:calc(92px + env(safe-area-inset-bottom));transform:translateX(-50%);background:#222;color:#fff;padding:10px 18px;border-radius:22px;z-index:70;font-size:14px;box-shadow:var(--sh2);animation:toastIn .45s var(--spring);max-width:90vw;text-align:center}
#toast.out{animation:toastOut .3s forwards}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,30px) scale(.8)}}
@keyframes toastOut{to{opacity:0;transform:translate(-50%,16px) scale(.9)}}
#fx{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:95}

/* ---------- Theme reveal (View Transitions) ---------- */
::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}

@media(min-width:700px){.sheet{border-radius:22px;margin:auto}#modal{align-items:center}.tiles{gap:14px}.hero{padding:24px}.hero img{width:100px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-delay:0s!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* ---- Login gate ---- */
body.locked{overflow:hidden}
#authGate{position:fixed;inset:0;z-index:150;display:flex;align-items:center;justify-content:center;padding:16px;overflow-y:auto;background:linear-gradient(135deg,var(--pri),var(--pri2))}
#authGate[hidden]{display:none}
.a-card{width:100%;max-width:380px;background:var(--card);color:var(--tx);border-radius:22px;padding:22px 20px;box-shadow:var(--sh2);display:flex;flex-direction:column;gap:6px;animation:fadeUp .5s var(--ease) both}
.a-logo{font-size:38px;text-align:center}.a-card h2{text-align:center;margin:0}.a-card .note{text-align:center;margin:0 0 6px}
.a-card input[hidden]{display:none}
.a-or{display:flex;align-items:center;gap:10px;color:var(--mut);font-size:12px;margin:4px 0}.a-or::before,.a-or::after{content:"";flex:1;height:1px;background:var(--bd)}
.a-pw{position:relative}.a-pw input{padding-right:44px}.a-pw button{position:absolute;right:4px;top:8px;border:0;background:none;font-size:18px;padding:6px 10px}
#aMeter{display:flex;gap:4px}#aMeter[hidden]{display:none}#aMeter i{flex:1;height:5px;border-radius:3px;background:var(--bd);transition:background .3s}
#aMeter[data-s="1"] i:nth-child(-n+1){background:#dc2626}#aMeter[data-s="2"] i:nth-child(-n+2){background:#f59e0b}#aMeter[data-s="3"] i:nth-child(-n+3){background:#84cc16}#aMeter[data-s="4"] i{background:#16a34a}
.a-rem{font-size:13px;color:var(--mut);display:flex;gap:8px;align-items:center}
.a-msg{min-height:18px;font-size:13px;color:#dc2626}.a-msg.ok{color:#16a34a}
.a-link{background:none;border:0;color:var(--mut);font-size:13px;padding:6px}.a-link b{color:var(--pri)}
.acct{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--card);padding:12px 14px;border-radius:14px;box-shadow:var(--sh);margin:8px 0}.acct small{display:block;color:var(--mut)}


/* ---------- Account onboarding and sync ---------- */
.auth-welcome[hidden],.greeting[hidden]{display:none!important}
.auth-welcome{position:fixed;inset:0;z-index:145;display:grid;place-items:center;padding:20px;background:rgba(13,11,30,.58);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);animation:fade .28s ease}
.auth-welcome-card{width:min(100%,430px);padding:30px 24px 24px;border:1px solid color-mix(in srgb,var(--pri) 18%,var(--bd));border-radius:28px;background:var(--card);color:var(--tx);box-shadow:0 24px 80px rgba(0,0,0,.28);display:flex;flex-direction:column;align-items:stretch;gap:12px;text-align:center;animation:welcomePop .52s var(--spring)}
@keyframes welcomePop{from{opacity:0;transform:translateY(24px) scale(.92)}to{opacity:1;transform:none}}
.auth-welcome-card .a-logo{font-size:48px;line-height:1.2}
.auth-welcome-card .eyebrow{font-size:10px;letter-spacing:2.4px;font-weight:800;color:var(--pri)}
.auth-welcome-card h2{font-size:clamp(24px,6vw,31px);line-height:1.12;letter-spacing:-.7px}
.auth-welcome-card .note{font-size:14px;line-height:1.6;margin:0 0 6px}
.auth-welcome-card small{color:var(--mut);font-size:11px;line-height:1.4}
.a-card{max-width:410px;padding:26px 22px;border:1px solid var(--bd)}
.a-card h2{font-size:24px;letter-spacing:-.4px}
#aLater{margin-top:2px}
.acct{align-items:center}
.acct-main{min-width:0;flex:1}
.acct-main>b{display:block;overflow-wrap:anywhere}
.acct-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px}
.sync-state,.sync-error{display:block;font-size:11px;margin-top:3px}
.sync-state{color:#059669!important}
.sync-error{color:#dc2626!important}
.purchase-lock{text-align:center;display:flex;flex-direction:column;align-items:stretch;gap:8px}
.purchase-lock .a-logo{font-size:42px}
.purchase-lock h3{justify-content:center;margin:0;font-size:21px}
.purchase-lock .note{font-size:14px;line-height:1.6}
.greeting{position:fixed;inset:0;z-index:180;display:grid;place-items:center;padding:20px;background:rgba(12,10,28,.48);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:fade .2s ease}
.greeting.greeting-out{animation:fadeOut .35s forwards}
.greeting-card{width:min(90vw,420px);min-height:260px;border-radius:32px;background:linear-gradient(145deg,var(--pri),var(--pri2));color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px;box-shadow:0 24px 80px rgba(0,0,0,.3);animation:greetingPop .55s var(--spring);text-align:center}
@keyframes greetingPop{0%{opacity:0;transform:translateY(45px) scale(.78)}65%{transform:translateY(-5px) scale(1.04)}100%{opacity:1;transform:none}}
.greeting-card>span{font-size:54px;line-height:1.1;animation:wave .8s ease-in-out 2}
@keyframes wave{0%,100%{transform:rotate(0)}25%{transform:rotate(18deg)}75%{transform:rotate(-12deg)}}
.greeting-card p{font-size:clamp(28px,7vw,42px);font-weight:500;margin-top:12px;opacity:.9}
.greeting-card h2{font-size:clamp(42px,11vw,68px);line-height:1.02;overflow-wrap:anywhere;letter-spacing:-1.5px}
@media(max-width:420px){.acct{align-items:flex-start;flex-direction:column}.acct-actions{width:100%;justify-content:stretch}.acct-actions .btn{flex:1}}
@media(prefers-reduced-motion:reduce){.auth-welcome-card,.greeting-card{animation:none}}