/* Paleta: vino y atardecer (vino del libro + naranja del cielo de la portada) */
:root{
  --bg:#FDF6EE; --surface:#FFFFFF; --surface2:#F6E9DC; --ink:#2E1F22; --muted:#6E5A57; --line:#EEDCCB;
  --navy:#5B2333; --navy2:#7A3045; --blue:#A8482A; --gold:#E08A3C; --gold-soft:#FBE3CC; --gold-text:#9A4515;
  --on-navy:#FCEFE3; --reader:#EFE3D6; --page-shadow:0 2px 14px rgba(70,25,38,.18);
  --shadow:0 1px 2px rgba(70,25,38,.06),0 8px 24px rgba(70,25,38,.08);
  --shadow-lg:0 18px 50px rgba(70,25,38,.2);
  --r:16px; --top:60px; --side:252px; --tab:64px;
  --serif:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#1A0D11; --surface:#26141A; --surface2:#331B23; --ink:#F4E9E4; --muted:#BFA9A6; --line:#432630;
    --navy:#2A0F18; --navy2:#4A1B29; --blue:#F0A27A; --gold:#EE9A4E; --gold-soft:#47291A; --gold-text:#F4B37C;
    --on-navy:#F4E9E4; --reader:#120809; --page-shadow:0 2px 14px rgba(0,0,0,.5);
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25); --shadow-lg:0 18px 50px rgba(0,0,0,.5);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#1A0D11; --surface:#26141A; --surface2:#331B23; --ink:#F4E9E4; --muted:#BFA9A6; --line:#432630;
  --navy:#2A0F18; --navy2:#4A1B29; --blue:#F0A27A; --gold:#EE9A4E; --gold-soft:#47291A; --gold-text:#F4B37C;
  --on-navy:#F4E9E4; --reader:#120809; --page-shadow:0 2px 14px rgba(0,0,0,.5);
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.25); --shadow-lg:0 18px 50px rgba(0,0,0,.5);
  color-scheme:dark;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}
body{margin:0;background:var(--bg);color:var(--ink);font:15.5px/1.55 var(--sans);min-height:100vh;min-height:100dvh}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}
[hidden]{display:none!important}
:focus-visible{outline:2.5px solid var(--gold);outline-offset:2px;border-radius:8px}
h1,h2,h3{margin:0;line-height:1.15}

/* ---------- estructura ---------- */
.shell{display:flex;min-height:100vh;min-height:100dvh}
.col{flex:1;min-width:0;display:flex;flex-direction:column}
main{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:20px 16px calc(var(--tab) + 28px + env(safe-area-inset-bottom))}

/* menú lateral */
.side{display:none;position:sticky;top:0;height:100vh;height:100dvh;width:var(--side);flex:none;flex-direction:column;gap:6px;
  background:linear-gradient(180deg,var(--navy2),var(--navy));color:var(--on-navy);padding:20px 14px}
.brand{display:flex;align-items:center;gap:12px;padding:4px 8px 18px}
.brand img{border-radius:10px}
.brand b{display:block;font:700 19px/1.1 var(--serif)}
.brand small{color:rgba(252,239,227,.7);font-size:13px}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px;color:rgba(252,239,227,.82);font-weight:500}
.side-nav a:hover{background:rgba(255,255,255,.07);color:#fff}
.side-nav a.on{background:rgba(232,150,80,.16);color:#F6B477}
.side-nav a.on svg{color:var(--gold)}
.badge{margin-left:auto;font-style:normal;font-size:12px;font-weight:700;background:var(--gold);color:#3A1406;border-radius:999px;padding:1px 8px}
.side-progress{margin-top:auto;background:rgba(255,255,255,.06);border-radius:14px;padding:14px}
.side-progress .bar-track{background:rgba(255,255,255,.14)}
.sp-row{display:flex;justify-content:space-between;font-size:13.5px;margin-bottom:8px;gap:8px}
.side-foot{display:flex;flex-direction:column;gap:2px;margin-top:8px}
.side-btn{appearance:none;border:0;background:transparent;display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;cursor:pointer;color:rgba(252,239,227,.82);text-align:left}
.side-btn:hover{background:rgba(255,255,255,.07);color:#fff}

/* barra superior */
.top{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:6px;
  min-height:calc(var(--top) + env(safe-area-inset-top));padding:env(safe-area-inset-top) 10px 0;
  background:var(--navy);color:var(--on-navy)}
.top-brand{display:flex;align-items:center;gap:10px;padding:0 6px;min-width:0}
.top-brand img{border-radius:8px}
.top-brand b{font:700 17px var(--serif);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-title{flex:1;min-width:0;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0 4px}
.top-title small{display:block;font-weight:500;font-size:12px;color:rgba(252,239,227,.68);overflow:hidden;text-overflow:ellipsis}
.top-actions{display:flex;align-items:center;gap:2px;margin-left:auto}
.ib{appearance:none;border:0;background:transparent;min-width:44px;height:44px;border-radius:12px;display:grid;place-items:center;cursor:pointer}
.ib:hover{background:rgba(255,255,255,.1)}
.pgbtn{appearance:none;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);height:36px;border-radius:999px;padding:0 12px;cursor:pointer;font-weight:700;font-variant-numeric:tabular-nums;margin:0 4px}
.pgbtn small{font-weight:500;opacity:.65}
#btnMark.on svg{fill:var(--gold);color:var(--gold)}
.zoom-ctl{display:none;align-items:center;border-right:1px solid rgba(255,255,255,.15);padding-right:4px;margin-right:2px}
#btnSpread.on{background:rgba(232,150,80,.2);color:#F6B477}
.read-prog{position:absolute;left:0;right:0;bottom:0;height:3px;background:transparent}
.read-prog i{display:block;height:100%;width:0;background:var(--gold);transition:width .25s}
body:not(.reading) .reader-only, body:not(.reading) .read-prog{display:none}
body.reading .not-reader{display:none}
body.reading .top-brand{display:none}
body:not(.reading):not(.sub) .top-title{display:none}
body.sub .top-brand{display:none}
body:not(.sub):not(.reading) #btnBack{display:none}

/* barra inferior (celular) */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:repeat(5,1fr);
  height:calc(var(--tab) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);
  background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line)}
.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--muted);font-size:11.5px;font-weight:600}
.tabbar a.on{color:var(--navy2)}
:root[data-theme="dark"] .tabbar a.on{color:var(--gold)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .tabbar a.on{color:var(--gold)}}
.tabbar a.on svg{stroke-width:2.3}
body.reading .tabbar{display:none}

/* ---------- botones ---------- */
.btn{appearance:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--surface);
  color:var(--ink);border-radius:999px;padding:11px 20px;font-weight:600;cursor:pointer;white-space:nowrap;transition:transform .12s,box-shadow .2s,background .2s}
.btn:hover{box-shadow:var(--shadow)}
.btn:active{transform:scale(.97)}
.btn.gold{background:linear-gradient(180deg,#EFA055,#E08A3C);border-color:#C9742B;color:#3A1406;box-shadow:0 4px 14px rgba(224,138,60,.35)}
.btn.ghost{background:transparent;border-color:rgba(252,239,227,.35);color:var(--on-navy)}
.btn.sm{padding:8px 16px;font-size:14.5px}
.btn:disabled{opacity:.6;cursor:default}

/* ---------- inicio ---------- */
.hero{position:relative;overflow:hidden;display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:center;
  background:radial-gradient(120% 140% at 0% 0%,#8E3A4C 0%,var(--navy2) 38%,#3E1622 100%);color:var(--on-navy);
  border-radius:24px;padding:32px;box-shadow:var(--shadow-lg)}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(232,150,80,.22),transparent 65%);pointer-events:none}
.hero-art{position:relative}
.cover{width:200px;height:auto;display:block;border-radius:6px;box-shadow:0 20px 40px rgba(0,0,0,.45),0 0 0 6px rgba(255,255,255,.06);transform:rotate(-2deg)}
.eyebrow{margin:0 0 8px;color:#F6B477;font-weight:700;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase}
.hero h1{font:700 clamp(26px,3.4vw,40px)/1.12 var(--serif);margin-bottom:12px}
.lead{margin:0 0 20px;color:rgba(252,239,227,.82);max-width:56ch;font-size:16px}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px}
.hero-prog{margin-top:22px;max-width:420px}
.hero-prog .bar-track{background:rgba(255,255,255,.14)}
.hero-prog .sp-row span{color:rgba(252,239,227,.78)}
.bar-track{height:7px;border-radius:99px;background:var(--surface2);overflow:hidden}
.bar-track i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#E08A3C,#F2AE6B);transition:width .4s}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0 0}
.stats div{background:var(--surface);border-radius:var(--r);padding:14px 16px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.stats b{font:700 24px var(--serif);color:var(--navy2)}
:root[data-theme="dark"] .stats b{color:var(--gold)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .stats b{color:var(--gold)}}
.stats span{color:var(--muted);font-size:13.5px}

.continue-card{display:flex;align-items:center;gap:16px;margin-top:16px;background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--gold);
  border-radius:var(--r);padding:12px 16px;box-shadow:var(--shadow)}
.continue-card img{width:56px;height:auto;border-radius:4px;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.continue-card>div{flex:1;min-width:0;display:flex;flex-direction:column}
.continue-card small{color:var(--gold-text);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.continue-card b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.continue-card span{color:var(--muted);font-size:14px}

.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:32px 0 14px}
.sec-head h2{font:700 23px var(--serif)}
.sec-head a{color:var(--blue);font-weight:600;font-size:14.5px}

.chap-row{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.chap{position:relative;background:var(--surface);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s}
.chap:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.chap-img{aspect-ratio:4/3;overflow:hidden;background:var(--surface2)}
.chap-img img{width:100%;height:auto;display:block;transform:translateY(-6%)}
.chap-n{position:absolute;top:10px;left:10px;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#F6B477;display:grid;place-items:center;font-weight:700;font-size:14px;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.chap-body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.chap-body b{font-size:14.5px;line-height:1.3}
.chap-body span{color:var(--muted);font-size:12.5px;margin-top:auto}
.chap .bar-track{height:4px}

.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.topic{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow);background:var(--navy)}
.topic img{width:100%;height:100%;object-fit:cover;object-position:top;display:block;transition:transform .4s}
.topic:hover img{transform:scale(1.05)}
.topic::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(40,12,20,.92))}
.topic div{position:absolute;left:0;right:0;bottom:0;padding:12px 14px;z-index:1;color:#fff}
.topic b{display:block;font-size:15px;line-height:1.25}
.topic span{font-size:12.5px;color:#F6B477;font-weight:600}

.testaments{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.testament{border-radius:var(--r);padding:22px;color:#fff;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:4px;min-height:110px;justify-content:flex-end;position:relative;overflow:hidden}
.testament b{font:700 21px var(--serif)}
.testament span{opacity:.85;font-size:14px}
.testament.at{background:linear-gradient(135deg,#7A3045,#5B2333)}
.testament.nt{background:linear-gradient(135deg,#C9742B,#A8551F)}
.testament:hover{filter:brightness(1.08)}

.tools{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:32px}
.tool{display:flex;align-items:center;gap:14px;background:var(--surface);border-radius:var(--r);padding:16px;box-shadow:var(--shadow)}
.tool-ic{width:46px;height:46px;border-radius:12px;background:var(--gold-soft);color:var(--gold-text);display:grid;place-items:center;flex:none}
.tool-txt{flex:1;min-width:0}
.tool-txt p{margin:2px 0 0;color:var(--muted);font-size:13.5px}
.tool .bar-track{margin-top:8px}

/* ---------- páginas internas ---------- */
.page-head{margin:4px 0 20px}
.page-head h1{font:700 clamp(26px,3vw,34px) var(--serif)}
.page-head p{margin:6px 0 0;color:var(--muted)}
.hint{color:var(--muted);margin:0 0 12px}
.grp{display:flex;align-items:center;gap:10px;font:700 20px var(--serif);margin:26px 0 12px}
.grp span{font:700 12px var(--sans);background:var(--gold-soft);color:var(--gold-text);padding:2px 9px;border-radius:99px}

.toc{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.toc>li{background:var(--surface);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
.toc-main{display:flex;gap:14px;align-items:center;padding:12px 16px 12px 12px}
.toc-main:hover{background:var(--surface2)}
.toc-thumb{width:52px;height:auto;border-radius:4px;box-shadow:0 1px 6px rgba(0,0,0,.15);flex:none;background:var(--surface2)}
.toc-num{flex:none;width:34px;height:34px;border-radius:50%;background:var(--navy);color:#F6B477;display:grid;place-items:center;font-weight:700;font-size:14px}
.toc-t{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}
.toc-t b{line-height:1.3}
.toc-t .bar-track{height:4px;max-width:240px}
.toc-p{color:var(--muted);font-size:13.5px;font-variant-numeric:tabular-nums;white-space:nowrap}
.toc details{border-top:1px solid var(--line)}
.toc summary{cursor:pointer;padding:11px 16px;color:var(--gold-text);font-weight:600;font-size:14px;list-style:none;display:flex;align-items:center;gap:8px}
.toc summary::-webkit-details-marker{display:none}
.toc summary::before{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-45deg);transition:transform .2s}
.toc details[open] summary::before{transform:rotate(45deg)}
.toc ul{list-style:none;margin:0;padding:0 8px 10px;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:2px 8px}
.toc ul a{display:flex;justify-content:space-between;gap:10px;padding:9px 10px;border-radius:10px}
.toc ul a:hover{background:var(--surface2)}
.toc ul a span:last-child{color:var(--muted);font-variant-numeric:tabular-nums;font-size:13.5px}
.toc.compact .toc-thumb{display:none}
.toc.compact .toc-t .bar-track{display:none}

.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.book{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 12px;font-weight:600;transition:border-color .15s,transform .15s}
.book:hover{border-color:var(--gold);transform:translateY(-1px)}
.book i{font-style:normal;width:28px;height:28px;border-radius:8px;background:var(--surface2);color:var(--muted);display:grid;place-items:center;font-size:12px;font-weight:700;flex:none}
.book.seen i{background:var(--gold-soft);color:var(--gold-text)}

.search{position:relative;margin-bottom:12px;max-width:720px}
.search svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted)}
.search input{width:100%;font:17px var(--sans);padding:15px 18px 15px 48px;border-radius:14px;border:1px solid var(--line);background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
.search input:focus{outline:2px solid var(--gold);border-color:transparent}
.suggest{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px;color:var(--muted);font-size:14px}
.suggest button{appearance:none;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 13px;cursor:pointer;font-size:14px}
.suggest button:hover{border-color:var(--gold)}
.results,.marks{list-style:none;margin:0;padding:0;display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(min(100%,460px),1fr))}
.results a,.marks a{display:flex;gap:14px;background:var(--surface);border-radius:14px;padding:12px;box-shadow:var(--shadow);height:100%}
.results a:hover,.marks a:hover{box-shadow:var(--shadow-lg)}
.results img,.marks img{width:62px;height:auto;align-self:flex-start;border-radius:4px;flex:none;background:var(--surface2);box-shadow:0 1px 5px rgba(0,0,0,.12)}
.r-meta{font-size:12.5px;color:var(--gold-text);font-weight:700}
.r-snip{font-size:14.5px;margin-top:3px;overflow-wrap:anywhere}
mark{background:var(--gold-soft);color:inherit;border-radius:3px;padding:0 2px;box-shadow:inset 0 -2px 0 var(--gold)}
.marks li{position:relative}
.marks .del{position:absolute;right:6px;top:6px;color:var(--muted)}
.marks .del:hover{background:var(--surface2)}
.empty{text-align:center;padding:40px 16px;color:var(--muted);max-width:380px;margin:0 auto}
.empty svg{width:48px;height:48px;color:var(--gold);margin-bottom:10px}
.empty b{display:block;color:var(--ink);font-size:17px;margin-bottom:4px}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:14px}
.grid a{position:relative;text-align:center;font-size:12.5px;color:var(--muted);font-weight:600}
.grid img{width:100%;height:auto;aspect-ratio:612/792;display:block;border-radius:5px;background:var(--surface2);box-shadow:var(--shadow);margin-bottom:5px;transition:transform .15s}
.grid a:hover img{transform:translateY(-2px)}
.grid a.seen::after{content:"";position:absolute;top:6px;right:6px;width:12px;height:12px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 2px #fff}

/* ---------- lector ---------- */
body.reading main{max-width:none;padding:0}
.reader{background:var(--reader);min-height:calc(100vh - var(--top))}
#pages{--pw:860px;display:flex;flex-direction:column;align-items:center;gap:14px;padding:14px 10px 110px}
.pg{width:min(100%,var(--pw));aspect-ratio:612/792;background:#fff;position:relative;box-shadow:var(--page-shadow);
  scroll-margin-top:calc(var(--top) + env(safe-area-inset-top) + 10px);content-visibility:auto;contain-intrinsic-size:auto 792px}
.pg::before{content:attr(data-n);position:absolute;inset:0;display:grid;place-items:center;color:#d9c6b6;font:700 30px var(--sans)}
.pg img{position:relative;width:100%;height:100%;display:block}
#pages.spread{display:grid;grid-template-columns:repeat(2,minmax(0,calc(var(--pw) * .62)));justify-content:center;gap:14px 4px}
#pages.spread .pg{width:100%}
#pages.spread .pg:first-child{grid-column:2}

.pager{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(16px + env(safe-area-inset-bottom));z-index:30;display:flex;align-items:center;gap:4px;
  background:color-mix(in srgb,var(--navy) 94%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--on-navy);
  border-radius:999px;padding:5px;box-shadow:0 10px 30px rgba(0,0,0,.35);transition:opacity .3s,transform .3s}
.pager.dim{opacity:0;transform:translate(-50%,20px);pointer-events:none}
.pill{appearance:none;border:0;background:rgba(255,255,255,.1);border-radius:999px;padding:10px 18px;font-weight:600;font-size:14.5px;cursor:pointer;display:flex;align-items:center;gap:8px}
.pill:hover{background:rgba(255,255,255,.16)}
.pill svg{width:18px;height:18px}

/* ---------- diálogos ---------- */
dialog{border:0;border-radius:20px;padding:22px;background:var(--surface);color:var(--ink);box-shadow:var(--shadow-lg);width:min(92vw,380px)}
dialog::backdrop{background:rgba(30,10,16,.55);backdrop-filter:blur(2px)}
dialog h3{font:700 20px var(--serif);margin-bottom:14px}
#jumpIn{width:100%;font:700 26px var(--sans);text-align:center;padding:10px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--ink)}
#jumpRange{width:100%;margin:16px 0 4px;accent-color:var(--gold)}
#jumpHint{text-align:center;font-size:14px;min-height:1.5em;margin:6px 0 0}
dialog .row{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
dialog .btn.ghost{color:var(--ink);border-color:var(--line)}
.sheet{width:min(96vw,620px);max-height:86vh;padding:0;overflow:hidden;display:flex;flex-direction:column}
.sheet:not([open]){display:none}
.sheet-head{display:flex;align-items:center;justify-content:space-between;padding:12px 10px 8px 20px;border-bottom:1px solid var(--line);margin:0}
.sheet-head h3{margin:0}
.sheet .toc{flex:1 1 auto;min-height:0;overflow:auto;overscroll-behavior:contain;padding:12px;gap:8px;grid-auto-rows:max-content;align-content:start}
.sheet .toc-main{padding:12px 14px 12px 12px}
.sheet .toc-t b{font-size:15px}
.sheet .toc>li{box-shadow:none;border:1px solid var(--line)}
.install-body{padding:18px 20px 22px;overflow:auto}
.install-app{display:flex;gap:14px;align-items:center;margin-bottom:16px}
.install-app img{border-radius:14px;box-shadow:var(--shadow)}
.install-app b{display:block;font-size:17px}
.install-app span{color:var(--muted);font-size:14px}
.steps{margin:0;padding:0;list-style:none;counter-reset:s;display:grid;gap:10px}
.steps li{counter-increment:s;position:relative;background:var(--bg);border-radius:12px;padding:12px 12px 12px 50px;min-height:50px}
.steps li::before{content:counter(s);position:absolute;left:12px;top:12px;width:26px;height:26px;border-radius:50%;background:var(--navy);color:#F6B477;display:grid;place-items:center;font-weight:700;font-size:13px}
.steps svg{width:18px;height:18px;vertical-align:-3px;color:var(--blue)}
.install-note{color:var(--muted);font-size:13.5px;margin:14px 0 0}
.install-other summary{cursor:pointer;color:var(--blue);font-weight:600;margin-top:16px}
.install-other h4{margin:14px 0 6px;font-size:14.5px}
.install-other p{margin:0;color:var(--muted);font-size:14px}

.toast{position:fixed;left:50%;bottom:calc(var(--tab) + 20px + env(safe-area-inset-bottom));transform:translate(-50%,20px);background:var(--navy);color:var(--on-navy);
  padding:11px 18px;border-radius:999px;font-size:14.5px;font-weight:500;opacity:0;pointer-events:none;transition:.25s;z-index:60;max-width:calc(100vw - 32px);box-shadow:0 8px 24px rgba(0,0,0,.3);display:flex;gap:8px;align-items:center}
.toast.show{opacity:1;transform:translate(-50%,0)}
body.reading .toast{bottom:calc(84px + env(safe-area-inset-bottom))}

/* ---------- instalar: botón superior, lateral y popup ---------- */
.top-install{appearance:none;display:inline-flex;align-items:center;gap:6px;border:0;cursor:pointer;height:36px;padding:0 14px 0 11px;margin-right:2px;border-radius:999px;
  font-weight:700;font-size:14px;color:#3A1406;background:linear-gradient(180deg,#F4A964,#E08A3C);box-shadow:0 2px 10px rgba(224,138,60,.45),inset 0 1px 0 rgba(255,255,255,.5)}
.top-install svg{width:18px;height:18px;stroke-width:2.2}
.top-install:active{transform:scale(.96)}
.side-install{appearance:none;display:flex;align-items:center;justify-content:center;gap:10px;border:0;cursor:pointer;padding:12px;border-radius:12px;margin-bottom:4px;
  font-weight:700;color:#3A1406;background:linear-gradient(180deg,#F4A964,#E08A3C);box-shadow:0 4px 16px rgba(224,138,60,.35)}
.side-install:hover{filter:brightness(1.06)}
.installed .top-install,.installed .side-install,.installed #installCard{display:none!important}

.ip-backdrop{position:fixed;inset:0;z-index:70;background:rgba(30,10,16,.55);backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);animation:ipFade .3s ease}
.install-pop{position:fixed;z-index:71;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));margin:0 auto;max-width:460px;
  background:linear-gradient(160deg,#7A3045 0%,#5B2333 60%,#3E1622 100%);color:#FCEFE3;border-radius:22px;padding:22px 20px 18px;
  border:1.5px solid rgba(232,150,80,.55);box-shadow:0 24px 60px rgba(0,0,0,.5),0 0 0 6px rgba(232,150,80,.08);animation:ipUp .45s cubic-bezier(.2,.9,.3,1.2)}
.install-pop::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(80% 60% at 85% 0%,rgba(246,180,119,.22),transparent 60%)}
.ip-close{position:absolute;top:10px;right:10px;appearance:none;border:0;background:rgba(255,255,255,.08);color:#FCEFE3;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;cursor:pointer}
.ip-close svg{width:18px;height:18px}
.ip-head{display:flex;align-items:center;gap:14px;padding-right:30px}
.ip-head img{border-radius:16px;box-shadow:0 6px 18px rgba(0,0,0,.4);flex:none}
.ip-tag{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#3A1406;background:#F6B477;border-radius:999px;padding:2px 9px;margin-bottom:4px}
.ip-head b{display:block;font:700 21px/1.2 var(--serif)}
.ip-list{list-style:none;margin:16px 0 18px;padding:0;display:grid;gap:8px;font-size:14.5px;color:rgba(252,239,227,.9)}
.ip-list li{display:flex;gap:10px;align-items:flex-start}
.ip-list svg{width:20px;height:20px;color:#F6B477;stroke-width:2.6;margin-top:1px}
.ip-actions{display:flex;gap:10px}
.ip-actions .btn{flex:1}
.ip-later{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#FCEFE3}
.ip-go{font-size:16px;padding:13px 18px;animation:ipPulse 2.2s ease-in-out .8s infinite}
.ip-go svg{width:20px;height:20px;stroke-width:2.2}
@keyframes ipUp{from{opacity:0;transform:translateY(40px) scale(.97)}to{opacity:1;transform:none}}
@keyframes ipFade{from{opacity:0}to{opacity:1}}
@keyframes ipPulse{0%,100%{box-shadow:0 4px 14px rgba(224,138,60,.35),0 0 0 0 rgba(246,180,119,.55)}50%{box-shadow:0 4px 14px rgba(224,138,60,.35),0 0 0 10px rgba(246,180,119,0)}}
@media (min-width:900px){
  .install-pop{left:auto;right:28px;bottom:28px;width:420px}
  .ip-backdrop{background:rgba(30,10,16,.25);backdrop-filter:none;-webkit-backdrop-filter:none}
  .top-install{display:none}
}
@media (max-width:360px){.top-install{padding:0 10px}.top-install svg{display:none}}

/* ---------- bloques y enseñanzas ---------- */
.chap-row{grid-template-columns:repeat(4,1fr)}
.chap-body small,.toc-t small{color:var(--gold-text);font-weight:700;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase}
.chap-body b{font:700 19px/1.15 var(--serif)}
.hero h1,.sec-head h2,.page-head h1,.brand b,.top-brand b,.grp,dialog h3,.ip-head b,.stats b,.testament b{letter-spacing:.01em}
.hero h1{font-size:clamp(30px,3.8vw,46px)}
.sec-head h2{font-size:27px}
.page-head h1{font-size:clamp(30px,3.4vw,40px)}
.grp{font-size:23px;line-height:1.2}
.stats b{font-size:28px}
.topic{aspect-ratio:auto;display:flex;flex-direction:column;background:var(--surface)}
.topic::after{display:none}
.topic img{height:auto;aspect-ratio:16/10;object-fit:cover;object-position:50% 9%;border-bottom:3px solid var(--gold)}
.topic div{position:static;padding:10px 12px 12px;color:var(--ink);flex:1}
.topic b{font:700 19px/1.15 var(--serif)}
.topic span{display:block;margin-bottom:3px;color:var(--gold-text);font-size:12px}
body,.stats b,.hero h1,.brand b,.top-brand b,.grp,.chap-body b,.topic b,.page-head h1,.sec-head h2,dialog h3,.ip-head b{font-variant-numeric:lining-nums}
.toc ul a{justify-content:flex-start;align-items:flex-start}
.toc ul a span:nth-child(2){flex:1;min-width:0;line-height:1.35}
.toc ul a i,.ens i{font-style:normal;flex:none;width:30px;height:30px;border-radius:50%;background:var(--surface2);color:var(--gold-text);display:grid;place-items:center;font-size:12.5px;font-weight:700}
.toc ul a.seen i,.ens.seen i{background:var(--gold);color:#3A1406}
.toc ul{grid-template-columns:1fr}
.ens-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:10px}
.ens{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 14px;transition:border-color .15s,transform .15s}
.ens:hover{border-color:var(--gold);transform:translateY(-1px)}
.ens span{display:flex;flex-direction:column;gap:3px;min-width:0}
.ens b{font-weight:600;line-height:1.35}
.ens small{color:var(--muted);font-size:13px}
.ens.seen{border-color:color-mix(in srgb,var(--gold) 45%,var(--line))}

/* ---------- responsive ---------- */
/* Tablet y PC: menú lateral, sin barra inferior */
@media (min-width:900px){
  .side{display:flex}
  .tabbar{display:none}
  .top-brand{display:none}
  body:not(.reading):not(.sub) .top{display:none}
  main{padding:28px 32px 48px}
  body.reading .side{display:none}
  .toast{bottom:28px}
  .zoom-ctl{display:flex}
  .sheet .toc ul{grid-template-columns:1fr}
}
@media (min-width:900px) and (max-width:1180px){
  .chap-row{grid-template-columns:repeat(2,1fr)}
  .topic-grid{grid-template-columns:repeat(3,1fr)}
  :root{--side:224px}
}
/* Celular y tablet vertical */
@media (max-width:899px){
  .chap-row{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;margin:0 -16px;padding:4px 16px 12px;gap:12px;scrollbar-width:none}
  .chap-row::-webkit-scrollbar{display:none}
  .chap{flex:0 0 min(62%,240px);scroll-snap-align:start}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .tools{grid-template-columns:1fr}
}
@media (min-width:600px) and (max-width:899px){
  .topic-grid{grid-template-columns:repeat(3,1fr)}
  main{padding-left:24px;padding-right:24px}
}
@media (max-width:640px){
  .hero{grid-template-columns:1fr;text-align:center;padding:28px 20px 24px;border-radius:20px;justify-items:center}
  .cover{width:150px}
  .lead{font-size:15px}
  .hero-cta{justify-content:center}
  .hero-cta .btn{flex:1 1 140px}
  .hero-prog{width:100%;text-align:left}
  .stats{grid-template-columns:repeat(2,1fr);gap:10px}
  .testaments{grid-template-columns:1fr}
  .tool{flex-wrap:wrap}
  .tool .btn{width:100%}
  .continue-card{gap:12px}
  #pages{padding:8px 0 100px;gap:8px}
  .pg{box-shadow:0 1px 6px rgba(0,0,0,.15)}
  .top-title{font-size:14.5px}
  .toc ul{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}