/* ==========================================================================
   oxch9.co — GoExch9 / GoExch / Go Exchange 9
   "PAPER & PITCH" light editorial theme, navy header + footer
   Shared tokens, header, footer, card shells, rail, game rail, seo box.
   Page-specific rules live in each page's own <style> block.
   ========================================================================== */

:root{
  --paper:#f4f6fb;
  --paper-2:#eaeef7;
  --card:#ffffff;
  --ink:#101827;
  --ink-2:#33405a;
  --muted:#606c86;
  --line:#e1e7f2;
  --line-2:#cfd8e8;
  --navy:#0d1424;
  --navy-2:#151f36;
  --green:#0b6e4f;
  --green-soft:#e6f5ee;
  --wa:#25D366;
  --amber:#f5a700;
  --amber-soft:#fff5e0;
  --amber-ink:#2a1a00;
  --red:#c2334d;
  --radius:14px;
  --shadow-s:0 1px 2px rgba(16,24,39,.06),0 3px 10px rgba(16,24,39,.05);
  --shadow-m:0 4px 14px rgba(16,24,39,.08),0 14px 40px rgba(16,24,39,.07);
  --font:"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --maxw:1160px;
}

*,*::before,*::after{box-sizing:border-box}
html{overflow-x:clip;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  overflow-x:clip;max-width:100%;margin:0;background:var(--paper);color:var(--ink-2);
  font-family:var(--font);font-size:17px;line-height:1.72;
}
main{max-width:100%;overflow-x:clip;display:block}
img{max-width:100%;height:auto;display:block}
a{color:var(--green);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--ink);line-height:1.24;margin:0 0 .5em;font-weight:800;letter-spacing:-.5px}
h1{font-size:clamp(1.85rem,4.4vw,2.9rem)}
h2{font-size:clamp(1.35rem,3vw,1.95rem)}
h3{font-size:clamp(1.05rem,2vw,1.28rem)}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.15em;padding-left:1.25em}
li{margin:.35em 0}
strong{color:var(--ink)}
table{border-collapse:collapse;width:100%}
hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--amber);color:var(--amber-ink);
  padding:10px 16px;z-index:999;font-weight:800;border-radius:0 0 8px 0}
.skip-link:focus{left:0}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 18px}

/* ================================ HEADER ================================= */
.hdr{position:sticky;top:0;z-index:120;width:100%;max-width:100vw;background:var(--navy);
  box-shadow:0 1px 0 rgba(255,255,255,.06)}
.hdr-in{display:flex;align-items:center;gap:14px;height:64px;width:100%;max-width:var(--maxw);
  margin:0 auto;padding:0 18px;position:relative}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand img{height:27px;width:auto}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav a{color:rgba(255,255,255,.82);font-size:.84rem;font-weight:600;padding:8px 9px;border-radius:8px;
  text-decoration:none;transition:color .18s,background .18s;white-space:nowrap;position:relative}
.nav a:hover{color:#fff;background:rgba(255,255,255,.08);text-decoration:none}
.nav a[aria-current="page"]{color:#fff}
.nav a[aria-current="page"]::after{content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
  background:var(--amber);border-radius:2px}
.hdr-cta{background:var(--amber)!important;color:var(--amber-ink)!important;font-weight:800!important;
  font-size:.85rem!important;padding:9px 16px!important;border-radius:8px!important;margin-left:8px}
.hdr-cta:hover{filter:brightness(1.06);text-decoration:none!important}
.burger{display:none;background:transparent;border:1px solid rgba(255,255,255,.25);color:#fff;
  width:42px;height:38px;border-radius:8px;font-size:1.1rem;cursor:pointer;margin-left:auto}
@media(max-width:1100px){
  .nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    gap:2px;margin:0;padding:10px 14px 16px;background:var(--navy-2);box-shadow:var(--shadow-m)}
  .nav.open{display:flex}
  .nav a{padding:11px 12px;font-size:.95rem}
  .nav a[aria-current="page"]::after{display:none}
  .hdr-cta{margin:8px 0 0;text-align:center}
  .burger{display:block}
}

/* ============================== BUTTONS ================================== */
.btn{display:inline-block;padding:13px 24px;border-radius:10px;font-weight:800;font-size:.96rem;
  text-align:center;cursor:pointer;border:0;text-decoration:none;transition:transform .16s,box-shadow .16s,filter .16s}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-amber{background:var(--amber)!important;color:var(--amber-ink)!important;box-shadow:0 6px 18px rgba(245,167,0,.28)}
.btn-wa{background:var(--wa)!important;color:#04250F!important;box-shadow:0 6px 18px rgba(37,211,102,.28)}
.btn-line{background:#fff!important;color:var(--ink)!important;border:1px solid var(--line-2);box-shadow:var(--shadow-s)}
.btn-line:hover{border-color:var(--green)}

/* ======================= LOGIN CARD FIRST (every page) =================== */
.lcfirst{background:linear-gradient(180deg,#eef2fa,var(--paper));border-bottom:1px solid var(--line);
  padding:26px 0 24px;position:relative;overflow:hidden}
.lcbox{max-width:540px;margin:0 auto;width:100%}
.lc-title{font-size:1.05rem;font-weight:800;color:var(--ink);margin:0 0 4px}
.lc-sub{font-size:.86rem;color:var(--muted);margin:0 0 15px}
.fld{display:flex;align-items:center;gap:10px;width:100%;padding:12px 14px;margin:0 0 10px;
  border-radius:10px;border:1px solid var(--line-2);background:#fbfcfe;color:var(--muted);
  font-size:.93rem;text-decoration:none;transition:border-color .18s,background .18s,color .18s}
.fld:hover{border-color:var(--green);background:var(--green-soft);color:var(--ink);text-decoration:none}
.fld .ic{width:20px;height:20px;flex:0 0 20px;opacity:.6}
.legal{font-size:.72rem;color:var(--muted);line-height:1.55;margin:12px 0 0}

/* =========================== ARTICLE + SIDE RAIL ========================= */
.layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:38px;align-items:start;padding:30px 0 10px}
.rail{position:sticky;top:84px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);
  padding:16px 16px 14px;box-shadow:var(--shadow-s)}
.rail h2,.rail-t{font-size:.72rem;letter-spacing:1.3px;text-transform:uppercase;color:var(--muted);margin:0 0 10px;font-weight:800}
.rail ol{list-style:none;padding:0;margin:0;counter-reset:rl}
.rail li{counter-increment:rl;margin:0}
.rail a{display:block;padding:6px 8px 6px 26px;font-size:.85rem;color:var(--ink-2);border-radius:7px;
  position:relative;line-height:1.4;transition:background .16s,color .16s}
.rail a::before{content:counter(rl);position:absolute;left:8px;top:6px;font-size:.7rem;color:var(--muted);font-weight:700}
.rail a:hover{background:var(--paper-2);text-decoration:none;color:var(--ink)}
.rail a.on{background:var(--green-soft);color:var(--green);font-weight:700}
.rail a.on::before{color:var(--green)}
.rail-cta{display:block;margin-top:12px;text-align:center;font-size:.85rem;font-weight:800;
  background:var(--amber);color:var(--amber-ink);border-radius:9px;padding:10px 12px}
.rail-cta:hover{text-decoration:none;filter:brightness(1.05)}
@media(max-width:1000px){.layout{grid-template-columns:1fr;gap:0}.rail{display:none}}

.art{min-width:0}
.art>section{padding:6px 0 18px;scroll-margin-top:88px}
.art h2{margin-top:14px}

/* ============================== CONTENT BITS ============================= */
.answer{border-left:4px solid var(--green);background:var(--green-soft);border-radius:0 12px 12px 0;
  padding:15px 18px;margin:0 0 20px;color:var(--ink);font-size:1rem}
.fact{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin:0 0 22px}
.fact div{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;box-shadow:var(--shadow-s)}
.fact b{display:block;font-size:1.3rem;color:var(--ink);font-weight:800;line-height:1.2}
.fact span{font-size:.76rem;color:var(--muted);text-transform:uppercase;letter-spacing:.7px}
.quote{border:0;border-left:3px solid var(--amber);margin:0 0 22px;padding:4px 0 4px 18px;
  font-size:1.08rem;color:var(--ink);font-style:italic}
.tbl-wrap{overflow-x:auto;margin:0 0 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}
.tbl-wrap table{min-width:520px;font-size:.93rem}
.tbl-wrap th,.tbl-wrap td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
.tbl-wrap th{background:var(--paper-2);color:var(--ink);font-weight:800;font-size:.8rem;
  text-transform:uppercase;letter-spacing:.6px}
.tbl-wrap tr:last-child td{border-bottom:0}
.tbl-wrap tbody tr:nth-child(even) td{background:#fafbfe}
.note{background:var(--amber-soft);border:1px solid #f3dfae;border-radius:12px;padding:14px 16px;margin:0 0 22px;font-size:.95rem}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:0 0 22px}
.cols>div{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:17px;box-shadow:var(--shadow-s)}
.cols h3{margin-bottom:6px;font-size:1rem}
.cols p:last-child{margin:0}
@media(max-width:720px){.cols{grid-template-columns:1fr}}

details{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:0 0 10px;overflow:hidden;
  box-shadow:var(--shadow-s)}
details summary{padding:14px 16px;cursor:pointer;font-weight:700;color:var(--ink);font-size:.98rem;
  list-style:none;position:relative;padding-right:44px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"";position:absolute;right:18px;top:50%;width:9px;height:9px;margin-top:-6px;
  border-right:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(45deg);transition:transform .25s}
details[open] summary::after{transform:rotate(-135deg);margin-top:-2px}
details .ans{padding:0 16px 15px;color:var(--ink-2);font-size:.95rem}

.shot{margin:24px auto;max-width:840px;width:100%}
.shot img{display:block;width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line);
  box-shadow:var(--shadow-m)}
.shot figcaption{margin-top:9px;font-size:.85rem;color:var(--muted);text-align:center}

.crumb{font-size:.8rem;color:var(--muted);padding:14px 0 2px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--green)}

/* ============================== GAME RAIL =============================== */
.gs{margin:26px 0}
.gs-head{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.gs-head h2,.gs-head h3{margin:0}
.gs-arrows{margin-left:auto;display:flex;gap:8px}
.gs-arrows button{width:34px;height:34px;border-radius:8px;border:1px solid var(--line-2);background:#fff;
  color:var(--ink);cursor:pointer;font-size:1rem;line-height:1;transition:.16s;box-shadow:var(--shadow-s)}
.gs-arrows button:hover{background:var(--green);color:#fff;border-color:var(--green)}
.gs-track{display:flex;gap:14px;overflow-x:auto;scroll-behavior:smooth;padding:4px 2px 14px;
  scroll-snap-type:x proximity;scrollbar-width:thin}
.gcard{flex:0 0 210px;scroll-snap-align:start;border-radius:12px;overflow:hidden;background:var(--card);
  border:1px solid var(--line);box-shadow:var(--shadow-s);text-decoration:none;position:relative;
  transition:transform .25s,box-shadow .25s,border-color .25s}
.gcard img{width:100%;height:158px;object-fit:cover;display:block;transition:transform .5s}
.gcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-m);border-color:var(--line-2);text-decoration:none}
.gcard:hover img{transform:scale(1.06)}
.gcard .tag{position:absolute;top:9px;left:9px;background:rgba(255,255,255,.94);color:var(--green);
  font-size:.63rem;font-weight:800;letter-spacing:.8px;text-transform:uppercase;padding:4px 8px;border-radius:6px}
@media(max-width:560px){.gcard{flex:0 0 176px}.gcard img{height:132px}}

/* ============================== SEO BOX + CHIPS ========================== */
.seo-box{max-height:320px;overflow-y:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);padding:20px 22px;margin:30px 0 20px;font-size:.92rem;box-shadow:var(--shadow-s)}
.seo-box h2{font-size:1.1rem;color:var(--green)}
.seo-box h3{font-size:.98rem;margin-top:15px}
.seo-box ul,.seo-box ol{margin:0 0 12px;padding-left:1.2em}
.seo-box li{margin:.25em 0}
.seo-box dl{margin:0 0 12px}
.seo-box dt{font-weight:800;color:var(--ink);margin-top:9px}
.seo-box dd{margin:2px 0 0}
.seo-box table{font-size:.88rem;margin:0 0 12px}
.seo-box th,.seo-box td{border-bottom:1px solid var(--line);padding:7px 8px;text-align:left;vertical-align:top}
.seo-box p strong{display:block;margin-top:8px}
.tp{display:inline-flex;align-items:center;gap:8px;margin:14px 0 0;padding:7px 12px;border-radius:9px;
  border:1px solid rgba(255,255,255,.16);color:#fff!important;font-size:.8rem;font-weight:700;text-decoration:none}
.tp svg{width:18px;height:18px;fill:#00b67a}
.tp:hover{border-color:#00b67a;text-decoration:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.also-search{margin:18px 0 34px}
.also-search h2{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:1.1px;margin-bottom:11px}
.also-search ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.also-search li{margin:0}
.also-search li a,.also-search li span{display:inline-block;padding:7px 13px;border-radius:8px;
  border:1px solid var(--line);background:var(--card);font-size:.8rem;color:var(--muted);text-decoration:none}
.also-search li a:hover{border-color:var(--green);color:var(--green);text-decoration:none}

/* ============================== ANIMATION =============================== */
.rv{opacity:0;transform:translateX(-16px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.07s}.rv-d2{transition-delay:.14s}
.ring{position:fixed;right:18px;bottom:88px;width:44px;height:44px;z-index:140;display:none}
.ring svg{transform:rotate(-90deg)}
.ring circle{fill:#fff;stroke:var(--line-2);stroke-width:3}
.ring circle.bar{fill:none;stroke:var(--green);stroke-linecap:round;transition:stroke-dashoffset .1s linear}
.ring.on{display:block;filter:drop-shadow(0 4px 10px rgba(16,24,39,.14))}
.pulse{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--wa);margin-right:7px;
  box-shadow:0 0 0 0 rgba(37,211,102,.6);animation:pl 2.2s infinite}
@keyframes pl{70%{box-shadow:0 0 0 9px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}
.underline{position:relative}
.underline::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--green);
  transition:width .3s}
.underline:hover::after{width:100%}

/* ================================ FOOTER ================================= */
.ftr{background:var(--navy);color:rgba(255,255,255,.72);margin-top:40px;padding:38px 0 22px}
.ftr-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:26px}
.ftr h3{font-size:.78rem;text-transform:uppercase;letter-spacing:1.1px;color:var(--amber);margin-bottom:12px}
.ftr p,.ftr li{font-size:.85rem;color:rgba(255,255,255,.68)}
.ftr ul{list-style:none;padding:0}
.ftr ul li{margin:.4em 0}
.ftr ul a{color:rgba(255,255,255,.68)}
.ftr ul a:hover{color:#fff}
.ftr img.flogo{height:28px;margin-bottom:12px}
.soc{display:flex;gap:10px;margin:14px 0 0}
.soc a{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;
  border:1px solid rgba(255,255,255,.16);transition:.2s}
.soc a:hover{transform:translateY(-3px);border-color:var(--amber)}
.soc svg{width:17px;height:17px;fill:rgba(255,255,255,.75)}
.soc a:hover svg{fill:var(--amber)}
.ftr-btm{border-top:1px solid rgba(255,255,255,.12);margin-top:24px;padding-top:15px;font-size:.78rem;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
.age{display:inline-flex;align-items:center;gap:7px;font-weight:700;color:#ff8fa3}
@media(max-width:900px){.ftr-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.ftr-grid{grid-template-columns:1fr}}

/* ========================== WHATSAPP FLOAT BUTTON ======================== */
.wafloat{position:fixed;right:18px;bottom:18px;width:60px;height:60px;border-radius:50%;background:var(--wa);
  display:flex;align-items:center;justify-content:center;z-index:150;box-shadow:0 8px 24px rgba(37,211,102,.42);
  animation:wap 2.6s infinite}
.wafloat svg{width:33px;height:33px;fill:#fff}
.wafloat:hover{text-decoration:none;filter:brightness(1.05)}
@keyframes wap{0%{box-shadow:0 8px 24px rgba(37,211,102,.42),0 0 0 0 rgba(37,211,102,.5)}
  70%{box-shadow:0 8px 24px rgba(37,211,102,.42),0 0 0 15px rgba(37,211,102,0)}
  100%{box-shadow:0 8px 24px rgba(37,211,102,.42),0 0 0 0 rgba(37,211,102,0)}}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}