/* KoiArcade — site styles */
:root{--bg:#f3f5fb;--card:#fff;--ink:#0f1b3d;--ink2:#47506b;--muted:#7a829a;--line:#e3e7f1;--koi:#ff6b3d;--koi2:#ffb38f;--teal:#14b8a6;
 --r:16px;--sh:0 1px 2px rgba(15,27,61,.06),0 8px 24px -12px rgba(15,27,61,.25);
 --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--disp:ui-rounded,"SF Pro Rounded","Nunito","Varela Round",system-ui,sans-serif}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 var(--font);color:var(--ink);background:var(--bg)}
a{color:#d4471c;text-underline-offset:3px}img{max-width:100%;display:block}
h1,h2,h3{font-family:var(--disp);letter-spacing:-.3px;line-height:1.2}
.wrap{max-width:1240px;margin:0 auto;padding:0 20px}.narrow{max-width:820px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px;border-radius:8px}
.muted{color:var(--muted)}.small{font-size:13px}
/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.6) blur(10px);-webkit-backdrop-filter:saturate(1.6) blur(10px);border-bottom:1px solid var(--line)}
.top-row{display:flex;align-items:center;gap:16px;min-height:60px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font:900 21px/1 var(--disp);letter-spacing:-.5px;flex:0 0 auto}
.brand svg{width:36px;height:36px}.brand b{color:var(--koi)}
.search{flex:1;max-width:520px;margin-left:auto;display:flex;background:#eef1f8;border-radius:999px;border:1px solid transparent;transition:.15s}
.search:focus-within{background:#fff;border-color:var(--koi2);box-shadow:0 0 0 4px rgba(255,107,61,.12)}
.search input{flex:1;min-width:0;border:0;background:transparent;font:inherit;padding:9px 4px 9px 16px;color:var(--ink);outline:0}
.search button{border:0;background:transparent;padding:0 14px;cursor:pointer}
.search svg{width:20px;height:20px;fill:none;stroke:var(--ink2);stroke-width:2.2;stroke-linecap:round}
.search.big{max-width:none;margin:14px 0 0;background:#fff;border-color:var(--line)}.search.big input{padding:13px 6px 13px 20px;font-size:18px}
.chips{display:flex;gap:8px;overflow-x:auto;padding-top:2px;padding-bottom:10px;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}
.chips a{flex:0 0 auto;text-decoration:none;color:var(--ink);font:700 14px/1 var(--disp);padding:8px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);transition:.15s}
.chips a:hover{border-color:var(--c)}
.chips a[aria-current="page"]{background:var(--c);color:#fff;border-color:var(--c)}
/* hero */
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:center;margin:22px 0 6px}
.hero h1{font-size:clamp(28px,4.2vw,46px);margin:0 0 10px;font-weight:900}.hero h1 span{color:var(--koi)}
.hero p{margin:0;color:var(--ink2);font-size:17px;max-width:560px}
.feature{position:relative;display:block;border-radius:22px;overflow:hidden;box-shadow:var(--sh);background:#17153a;text-decoration:none;color:#fff;aspect-ratio:16/8}
.feature img{width:100%;height:100%;object-fit:cover;transition:transform .4s}.feature:hover img{transform:scale(1.04)}
.feature span{position:absolute;inset:auto 0 0 0;padding:44px 20px 16px;background:linear-gradient(transparent,rgba(10,10,30,.88));font-size:14.5px}
.feature em{display:inline-block;font:800 11px/1 var(--disp);text-transform:uppercase;letter-spacing:.8px;background:var(--koi);padding:5px 8px;border-radius:6px;font-style:normal}
.feature strong{display:block;font:900 24px/1.15 var(--disp);margin:6px 0 2px}
/* rows & grids */
.row{margin:28px 0}.row-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px}
.row-head h2{margin:0;font-size:21px;display:flex;align-items:center;gap:10px}.row-head h2 i{width:10px;height:22px;border-radius:4px;display:inline-block}
.row-head a{font-weight:700;font-size:14px;text-decoration:none;white-space:nowrap}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:14px}
.grid.feat{grid-template-columns:repeat(6,1fr)}
.grid.scroll{grid-template-columns:repeat(8,1fr)}
.card{display:block;text-decoration:none;color:var(--ink);background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 30px -14px rgba(15,27,61,.45)}
.thumb{position:relative;display:block;aspect-ratio:4/3;background:#dfe4f0}
.thumb img{width:100%;height:100%;object-fit:cover}
.ttl{display:block;padding:8px 10px 10px;font:700 14px/1.3 var(--disp);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.badge{position:absolute;top:8px;left:8px;font:800 10.5px/1 var(--disp);text-transform:uppercase;letter-spacing:.6px;color:#fff;padding:5px 7px;border-radius:6px}
.badge.new{background:var(--teal)}.badge.orig{background:var(--koi)}
/* category header */
.cat-head{background:#fff;border-radius:22px;padding:22px 24px;margin:14px 0 20px;box-shadow:var(--sh);border-top:6px solid var(--c)}
.cat-head h1{margin:0 0 6px;font-size:clamp(26px,3.5vw,38px)}.cat-head p{margin:4px 0;color:var(--ink2);max-width:860px}
.crumbs{font-size:13.5px;color:var(--muted);margin:16px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.crumbs a{color:var(--muted)}.crumbs span{margin:0 2px}
/* game page */
.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;margin-top:10px}
.game-title{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;margin:4px 0 12px}.game-title h1{margin:0;font-size:clamp(24px,3vw,34px)}
.pills{display:flex;flex-wrap:wrap;gap:6px}
.pill{font:700 12.5px/1 var(--disp);padding:6px 10px;border-radius:999px;background:#e9edf6;color:var(--ink2);text-decoration:none}
a.pill{background:var(--c);color:#fff}.pill.orig{background:var(--koi);color:#fff}
.player{position:relative;width:100%;max-width:min(100%,calc((100vh - 190px) * var(--ratio)));margin:0 auto;aspect-ratio:var(--ratio);background:#0b1020;border-radius:18px;overflow:hidden;box-shadow:var(--sh)}
.player iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.poster{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background-size:cover;background-position:center}
.poster::before{content:"";position:absolute;inset:0;backdrop-filter:blur(22px) brightness(.55);-webkit-backdrop-filter:blur(22px) brightness(.55);background:rgba(10,14,30,.35)}
.poster img{position:relative;width:min(46%,300px);height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:0 20px 40px -10px rgba(0,0,0,.6)}
.play-btn{position:relative;display:flex;align-items:center;gap:8px;border:0;cursor:pointer;background:var(--koi);color:#fff;font:900 20px/1 var(--disp);padding:15px 30px 15px 22px;border-radius:999px;box-shadow:0 10px 24px -6px rgba(255,107,61,.7);transition:transform .15s}
.play-btn:hover{transform:scale(1.05)}.play-btn svg{width:26px;height:26px;fill:#fff}
.exit-fs{display:none}
.player.pseudo-fs{position:fixed;inset:0;z-index:1000;max-width:none;width:100vw;height:100vh;height:100dvh;aspect-ratio:auto;border-radius:0}
.player.pseudo-fs .exit-fs,.player:fullscreen .exit-fs{display:block;position:absolute;top:10px;right:10px;z-index:3;width:40px;height:40px;border-radius:50%;border:0;background:rgba(0,0,0,.6);color:#fff;font-size:18px;cursor:pointer}
.player:fullscreen{max-width:none;border-radius:0}
.player-bar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 2px 0;font-size:14px}
.btn-ghost{display:inline-block;border:1px solid var(--line);background:#fff;color:var(--ink);font:700 14px/1 var(--disp);padding:9px 12px;border-radius:10px;cursor:pointer;text-decoration:none;margin-left:6px}
.btn-ghost:hover{border-color:var(--koi)}
.prose{background:#fff;border-radius:18px;padding:6px 22px 14px;margin:16px 0;box-shadow:var(--sh)}
.prose h2{font-size:21px;margin:16px 0 8px}.prose h3{font-size:16px;margin:16px 0 4px;color:var(--ink2)}
.prose p,.prose li{color:#2b3350}.prose ul,.prose ol{padding-left:22px}.prose li{margin:5px 0}
.doc{padding:8px 28px 22px}.doc h1{font-size:clamp(26px,3.5vw,36px);margin:18px 0 10px}
.steps li::marker{color:var(--koi);font-weight:800}
.facts{width:100%;border-collapse:collapse;font-size:15px;margin-bottom:6px}.facts th,.facts td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.facts th{width:120px;color:var(--muted);font-weight:600}
.faq details{border-bottom:1px solid var(--line)}.faq details:last-child{border:0}
.faq summary{cursor:pointer;font:800 16px/1.4 var(--disp);padding:12px 0;list-style:none;display:flex;justify-content:space-between;gap:10px}
.faq summary::after{content:"+";color:var(--koi);font-size:20px;line-height:1}.faq details[open] summary::after{content:"–"}
.faq summary::-webkit-details-marker{display:none}.faq details p{margin:0 0 14px}
.game-side h2{font-size:18px;margin:4px 0 10px}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.side-list a{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--ink);background:#fff;border-radius:12px;padding:6px;box-shadow:var(--sh)}
.side-list a:hover{outline:2px solid var(--koi2)}
.side-list img{width:96px;height:72px;object-fit:cover;border-radius:8px;flex:0 0 auto}
.side-list span{font:700 14px/1.3 var(--disp);overflow:hidden}.side-list small{display:block;font:500 12.5px var(--font);color:var(--muted);margin-top:2px}
/* ad slots: reserved, collapse until filled */
.ad-slot{margin:18px auto;text-align:center;min-height:0}.ad-slot:empty{display:none}
.seo-copy{background:#fff;border-radius:18px;padding:6px 22px 12px;margin:30px 0;box-shadow:var(--sh);color:var(--ink2)}.seo-copy h2{font-size:19px}
/* footer */
.foot{margin-top:48px;background:var(--ink);color:#c4cae0;font-size:14.5px}
.foot .wrap{display:grid;grid-template-columns:1.2fr 2fr 1fr;gap:20px 36px;padding:32px 20px}
.foot .brand{color:#fff}.foot a{color:#fff;text-decoration:none;margin:0 14px 8px 0;display:inline-block}.foot a:hover{text-decoration:underline}
.foot .small{grid-column:1/-1;margin:0;color:#8f97b3}
@media (max-width:1100px){.grid.feat{grid-template-columns:repeat(4,1fr)}.game-layout{grid-template-columns:1fr}.game-side{order:2}
 .side-list{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}}
@media (max-width:900px){.grid.scroll{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;margin:0 -20px;padding-left:20px;padding-right:20px;scrollbar-width:none}
 .grid.scroll::-webkit-scrollbar{display:none}.grid.scroll .card{flex:0 0 150px;scroll-snap-align:start}
 .hero{grid-template-columns:1fr}.foot .wrap{grid-template-columns:1fr}}
@media (max-width:600px){.wrap{padding:0 14px}.grid.scroll{margin:0 -14px;padding-left:14px;padding-right:14px}
 .top-row{gap:10px;min-height:56px}.brand span{display:none}.search input{padding:8px 2px 8px 14px}
 .grid,.grid.feat{grid-template-columns:repeat(2,1fr);gap:10px}.ttl{font-size:13.5px;padding:7px 9px 9px}
 .hero{margin-top:14px;gap:14px}.hero p{font-size:15.5px}.feature{aspect-ratio:16/9}.feature strong{font-size:20px}
 .player{max-width:100%;border-radius:14px}.poster img{width:44%}.play-btn{font-size:17px;padding:12px 22px 12px 16px}
 .prose{padding:4px 16px 12px}.cat-head{padding:18px}.side-list{grid-template-columns:1fr}.btn-ghost{margin:0 6px 0 0}}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}