/* ===== Reader Arcade design system (v11) ===== */
:root{
  --arcade-bg:#f6f8f7; --arcade-surface:#fff; --arcade-surface-soft:#f9fbfa;
  --arcade-border:#dfe8e5; --arcade-border-strong:#c8d8d4;
  --arcade-text:#102f2d; --arcade-muted:#5e6f6c;
  --arcade-primary:#245f5a; --arcade-primary-dark:#16413e;
  --arcade-mint:#dff6eb; --arcade-mint-strong:#9ee6c1;
  --arcade-yellow:#f7d85b; --arcade-orange:#f3a64f; --arcade-dark-game:#101827;
  --radius-xs:6px; --radius-sm:8px; --radius-md:12px; --radius-lg:16px; --radius-xl:24px;
  --shadow-card:0 8px 24px rgba(16,47,45,.06);
  --shadow-card-hover:0 14px 34px rgba(16,47,45,.10);
  --shadow-shell:0 18px 50px rgba(16,47,45,.12);
  --ease-out:cubic-bezier(.23,1,.32,1);
  --arcade-maxw:1140px;
}
.arcade-wrap{max-width:var(--arcade-maxw);margin:0 auto;padding:0 20px;}
.arcade-section{margin:40px auto;}
.arcade-section > .sec-head{margin:0 0 16px;}
.sec-head h2{font-size:clamp(20px,3vw,26px);color:var(--arcade-text);margin:0 0 4px;letter-spacing:-.01em;}
.sec-head p{font-size:14px;color:var(--arcade-muted);margin:0;}
.sec-head .more{float:right;font-size:14px;color:var(--arcade-primary);text-decoration:none;font-weight:600;}
.sec-head .more:hover{text-decoration:underline;}
.sec-head .more:focus-visible{outline:3px solid var(--arcade-mint-strong);outline-offset:2px;border-radius:6px;}

/* ===== ArcadeSubNav ===== */
.arcade-subnav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(1.2) blur(6px);border-bottom:1px solid var(--arcade-border);}
.arcade-subnav .inner{max-width:var(--arcade-maxw);margin:0 auto;padding:8px 20px;
  display:flex;gap:6px;align-items:center;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
.arcade-subnav .inner::-webkit-scrollbar{display:none;}
.arcade-subnav .brandlink{font-weight:700;color:var(--arcade-text);margin-right:8px;white-space:nowrap;font-size:14px;text-decoration:none;}
.arcade-subnav a.snl{white-space:nowrap;font-size:13.5px;color:var(--arcade-muted);
  text-decoration:none;padding:7px 12px;border-radius:999px;transition:background .15s,color .15s;}
.arcade-subnav a.snl:hover{color:var(--arcade-text);background:var(--arcade-surface-soft);}
.arcade-subnav a.snl[aria-current="page"]{color:#fff;background:var(--arcade-primary);}

/* ===== Hero + chips + trust strip ===== */
.arcade-hero{background:linear-gradient(180deg,var(--arcade-mint) 0%,var(--arcade-surface) 100%);
  border:1px solid var(--arcade-border);border-radius:var(--radius-xl);
  padding:clamp(24px,5vw,48px);margin:24px auto;display:grid;gap:24px;grid-template-columns:1.4fr 1fr;align-items:center;}
.arcade-hero h1{font-size:clamp(28px,6vw,52px);line-height:1.05;letter-spacing:-.02em;margin:0 0 8px;color:var(--arcade-text);}
.arcade-hero .tag{font-size:clamp(16px,2.4vw,22px);font-weight:600;color:var(--arcade-primary);margin:0 0 12px;}
.arcade-hero p{font-size:clamp(14px,2vw,17px);color:var(--arcade-muted);max-width:48ch;margin:0 0 18px;line-height:1.5;}
.chips{display:flex;flex-wrap:wrap;gap:8px;}
.chips .ch{font-size:12.5px;font-weight:600;color:var(--arcade-primary-dark);
  background:var(--arcade-surface);border:1px solid var(--arcade-border-strong);
  border-radius:999px;padding:6px 11px;}
.arcade-trust{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.arcade-trust .t{background:var(--arcade-surface);border:1px solid var(--arcade-border);
  border-radius:var(--radius-md);padding:14px 16px;display:flex;gap:10px;align-items:center;font-size:14px;color:var(--arcade-text);}
.arcade-trust .t svg{width:20px;height:20px;color:var(--arcade-primary);flex:0 0 auto;}
@media(max-width:860px){.arcade-hero{grid-template-columns:1fr;} .arcade-trust{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.arcade-trust{grid-template-columns:1fr;}}

/* ===== GameCard + grid + featured ===== */
.card-grid{display:grid;gap:16px;grid-template-columns:repeat(3,1fr);}
.rail{display:grid;gap:16px;grid-auto-flow:column;grid-auto-columns:minmax(230px,1fr);
  overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:4px;}
.rail::-webkit-scrollbar{display:none;}
.gcard{display:flex;flex-direction:column;background:var(--arcade-surface);
  border:1px solid var(--arcade-border);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-card);transition:transform .16s,box-shadow .16s;text-decoration:none;color:inherit;}
@media (hover:hover) and (pointer:fine){
  .gcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);}
  .gcard:hover .thumb img{transform:scale(1.02);}
}
.gcard:focus-visible{outline:3px solid var(--arcade-mint-strong);outline-offset:2px;}
.gcard .thumb{position:relative;aspect-ratio:16/10;background:var(--arcade-mint);overflow:hidden;
  box-shadow:inset 0 0 0 1px rgba(16,47,45,.06);}
.gcard .thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .2s;}
.gcard .thumb::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,47,45,0) 55%,rgba(16,47,45,.10));pointer-events:none;}
.gcard .thumb .badge{position:absolute;left:10px;top:10px;width:30px;height:30px;border-radius:8px;
  background:rgba(255,255,255,.92);display:grid;place-items:center;color:var(--arcade-primary);box-shadow:var(--shadow-card);}
.gcard .thumb .badge svg{width:18px;height:18px;}
.gcard .body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1;}
.gcard .title{font-size:16px;font-weight:700;color:var(--arcade-text);margin:0;line-height:1.2;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.gcard .cat{font-size:12.5px;color:var(--arcade-primary);font-weight:600;}
.gcard .desc{font-size:13.5px;color:var(--arcade-muted);line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em;}
.gcard .meta{font-size:12px;color:var(--arcade-muted);margin-top:auto;}
.gcard .play{font-size:14px;font-weight:700;color:var(--arcade-primary);margin-top:6px;}
.gcard:hover .play{text-decoration:underline;}
.gcard.feat{grid-column:span 2;flex-direction:row;}
.gcard.feat .thumb{flex:0 0 46%;aspect-ratio:auto;}
.gcard.feat .body{justify-content:center;gap:8px;}
.gcard.feat .title{font-size:22px;white-space:normal;}
.gcard.feat .desc{-webkit-line-clamp:3;font-size:14.5px;}
@media(max-width:900px){.card-grid{grid-template-columns:repeat(2,1fr);} .gcard.feat{grid-column:span 2;}}
@media(max-width:600px){.card-grid{grid-template-columns:1fr;}
  .gcard.feat{flex-direction:column;} .gcard.feat .thumb{flex:auto;aspect-ratio:16/10;}}

/* ===== Filter chips ===== */
.filterbar{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px;}
.filterbar button{font-size:13px;font-weight:600;color:var(--arcade-muted);
  background:var(--arcade-surface);border:1px solid var(--arcade-border-strong);
  border-radius:999px;padding:8px 14px;cursor:pointer;min-height:44px;display:inline-flex;align-items:center;justify-content:center;transition:background .15s,color .15s,border-color .15s;}
.filterbar button:hover{color:var(--arcade-text);}
.filterbar button:focus-visible{outline:3px solid var(--arcade-mint-strong);outline-offset:2px;}
.filterbar button:active{transform:scale(.97);}
.filterbar button[aria-pressed="true"]{background:var(--arcade-primary);color:#fff;border-color:var(--arcade-primary);}
.gcard[hidden]{display:none;}

/* ===== GameHero + breadcrumb (single-game) ===== */
.arcade-breadcrumb{max-width:var(--arcade-maxw);margin:14px auto 0;padding:0 20px;font-size:12.5px;color:var(--arcade-muted);}
.arcade-breadcrumb a{color:var(--arcade-muted);text-decoration:none;}
.arcade-breadcrumb a:hover{color:var(--arcade-primary);text-decoration:underline;}
.arcade-breadcrumb b{color:var(--arcade-text);font-weight:600;}
.game-hero{max-width:var(--arcade-maxw);margin:10px auto 6px;padding:0 20px;}
.game-hero h1{font-size:clamp(28px,5vw,44px);line-height:1.08;letter-spacing:-.02em;margin:0 0 6px;color:var(--arcade-text);}
.game-hero p{font-size:clamp(14px,2vw,17px);color:var(--arcade-muted);margin:0 0 12px;max-width:60ch;line-height:1.5;}

/* ===== GameShell : restyle existing .play-col + .btns + .board ===== */
.play-col{display:block;background:var(--arcade-surface);border:1px solid var(--arcade-border);
  border-radius:var(--radius-xl);box-shadow:var(--shadow-shell);padding:clamp(14px,3vw,22px);
  max-width:680px;margin:0 auto;animation:shell-in .25s var(--ease-out) both;}
@keyframes shell-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.play-col .scores,.play-col .hud,.play-col .statline{display:flex;gap:10px;flex-wrap:wrap;
  align-items:center;justify-content:center;margin:0 0 12px;}
.play-col .scores .score,.play-col .scorebox,.play-col .chip.score{background:var(--arcade-surface-soft);
  border:1px solid var(--arcade-border);border-radius:var(--radius-sm);padding:6px 12px;
  font-size:13px;color:var(--arcade-text);font-weight:600;}
.play-col .scorebox .l{color:var(--arcade-muted);font-weight:600;margin-right:4px;}
.btns{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:12px 0 0;}
.btn{font-size:14px;font-weight:600;border-radius:var(--radius-sm);padding:9px 14px;cursor:pointer;
  border:1px solid var(--arcade-border-strong);background:var(--arcade-surface);color:var(--arcade-text);
  transition:background .15s,transform .05s;min-height:44px;}
.btn:hover{background:var(--arcade-surface-soft);}
.btn:active{transform:scale(.97);}
.btn.primary{background:var(--arcade-primary);color:#fff;border-color:var(--arcade-primary);}
.btn.primary:hover{background:var(--arcade-primary-dark);}
.btn:focus-visible{outline:3px solid var(--arcade-mint-strong);outline-offset:2px;}
.btn.icon{min-width:44px;}
.shell-hint{font-size:12.5px;color:var(--arcade-muted);text-align:center;margin:12px 0 0;}

/* ===== Guide tabs + FAQ accordion + info layout + related ===== */
.info-a,.info-b{background:var(--arcade-surface);border:1px solid var(--arcade-border);
  border-radius:var(--radius-lg);padding:clamp(16px,2.5vw,24px);box-shadow:var(--shadow-card);}
.guide .tabs,.guide [role="tablist"]{display:flex;gap:4px;border-bottom:1px solid var(--arcade-border);margin:0 0 14px;flex-wrap:wrap;}
.guide [role="tab"]{font-size:14px;font-weight:600;color:var(--arcade-muted);background:none;border:0;
  padding:10px 12px;min-height:44px;cursor:pointer;border-bottom:2px solid transparent;}
.guide [role="tab"][aria-selected="true"]{color:var(--arcade-primary);border-bottom-color:var(--arcade-primary);}
.guide [role="tabpanel"]{font-size:15px;line-height:1.6;color:var(--arcade-text);}
.faq h2,.faq h3,.faq .faq-h{font-size:clamp(20px,3vw,24px);margin:0 0 4px;color:var(--arcade-text);}
.faq .faq-sub{font-size:14px;color:var(--arcade-muted);margin:0 0 12px;}
/* native <details>/<summary> FAQ accordion */
.faq details{border-top:1px solid var(--arcade-border);}
.faq details:last-of-type{border-bottom:1px solid var(--arcade-border);}
.faq summary{list-style:none;cursor:pointer;font-size:15.5px;font-weight:600;color:var(--arcade-text);
  padding:14px 28px 14px 0;position:relative;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";position:absolute;right:4px;top:11px;font-size:20px;color:var(--arcade-primary);}
.faq details[open] summary::after{content:"\2212";}
.faq .fa{font-size:14.5px;line-height:1.6;color:var(--arcade-muted);padding:0 0 14px;}
.faq .qa{border-top:1px solid var(--arcade-border);}
.faq .qa:last-child{border-bottom:1px solid var(--arcade-border);}
.faq .qa > button.q{width:100%;text-align:left;background:none;border:0;cursor:pointer;
  font-size:15.5px;font-weight:600;color:var(--arcade-text);padding:14px 28px 14px 0;position:relative;}
.faq .qa > button.q::after{content:"+";position:absolute;right:4px;top:12px;font-size:20px;color:var(--arcade-primary);transition:transform .2s;}
.faq .qa > button.q[aria-expanded="true"]::after{content:"\2212";}
.faq .qa .a{font-size:14.5px;line-height:1.6;color:var(--arcade-muted);padding:0 0 14px;}
.faq .qa .a[hidden]{display:none;}
.related-grid{display:grid;gap:12px;grid-template-columns:repeat(3,1fr);}
@media(max-width:700px){.related-grid{grid-template-columns:repeat(2,1fr);}}

/* ===== Stat cards + Upgrade cards (APK Tycoon) + game-over overlay ===== */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:0 0 14px;}
.stat-card{background:var(--arcade-surface-soft);border:1px solid var(--arcade-border);
  border-radius:var(--radius-md);padding:12px;text-align:center;}
.stat-card .v{font-size:20px;font-weight:800;color:var(--arcade-text);line-height:1.1;}
.stat-card .l{font-size:11.5px;color:var(--arcade-muted);text-transform:uppercase;letter-spacing:.04em;margin-top:4px;}
.tap-card{background:linear-gradient(180deg,var(--arcade-mint-strong),var(--arcade-mint));
  border:1px solid var(--arcade-border-strong);border-radius:var(--radius-lg);padding:22px;text-align:center;
  cursor:pointer;user-select:none;transition:transform .06s,box-shadow .15s;box-shadow:var(--shadow-card);
  display:block;width:100%;max-width:480px;margin:10px auto;}
.tap-card:active{transform:scale(.985);box-shadow:var(--shadow-card-hover);}
.tap-card .big{display:block;font-size:20px;font-weight:800;color:var(--arcade-primary-dark);}
.tap-card .sub{display:block;font-size:13px;color:var(--arcade-primary-dark);opacity:.8;margin-top:4px;}
.upg-grid{display:grid;gap:10px;grid-template-columns:repeat(2,1fr);}
.upg{display:flex;justify-content:space-between;align-items:center;gap:10px;text-align:left;
  background:var(--arcade-surface);border:1px solid var(--arcade-border);border-radius:var(--radius-md);
  padding:12px 14px;cursor:pointer;transition:background .15s,border-color .15s,box-shadow .15s,opacity .15s;}
.upg .nm{font-size:14.5px;font-weight:700;color:var(--arcade-text);}
.upg .dt{font-size:12px;color:var(--arcade-muted);}
.upg .cost{font-size:13px;font-weight:700;color:var(--arcade-primary);white-space:nowrap;}
.upg.affordable{border-color:var(--arcade-mint-strong);box-shadow:0 0 0 2px var(--arcade-mint) inset;}
.upg.affordable .cost{color:var(--arcade-primary-dark);}
.upg[disabled],.upg.locked{opacity:.55;cursor:not-allowed;}
.prod-label{font-weight:700;color:var(--arcade-text);font-size:14px;margin:16px auto 8px;max-width:680px;}
@media(max-width:560px){.stat-row{grid-template-columns:repeat(2,1fr);} .upg-grid{grid-template-columns:1fr;}}
.go-overlay{position:absolute;inset:0;display:grid;place-items:center;
  background:rgba(16,47,45,.62);backdrop-filter:blur(3px);border-radius:inherit;animation:go-fade .18s ease both;}
.go-overlay .card{background:var(--arcade-surface);border-radius:var(--radius-lg);padding:24px 28px;
  text-align:center;box-shadow:var(--shadow-shell);max-width:300px;animation:go-pop .22s var(--ease-out) both;}
@keyframes go-fade{from{opacity:0}to{opacity:1}}
@keyframes go-pop{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}
.go-overlay h3{font-size:22px;margin:0 0 6px;color:var(--arcade-text);}
.go-overlay .sc{font-size:15px;color:var(--arcade-muted);margin:0 0 16px;}
.go-overlay .row{display:flex;gap:8px;flex-direction:column;}

/* ===== Reduced motion + global guards ===== */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  .gcard:hover{transform:none;} .gcard:hover .thumb img{transform:none;}
}
html,body{max-width:100%;overflow-x:hidden;}