/* style-go88kco.css — Layout A cho go88k.co.com. Palette Go88: nền đen-nâu + VÀNG GOLD + đỏ-mận.
   1 stylesheet dùng chung trang chủ + mọi trang con. */
:root{
  --bg:#0c0805; --panel:#17100a; --panel2:#120c06; --line:#2c2012;
  --brand:#ffc400; --brand-2:#d4a017; --brand-ink:#1a1200; --brand-soft:rgba(255,196,0,.12);
  --red:#c4221f; --red-2:#e23b2c;
  --ink:#f3ead7; --mut:#b09a73; --warn:#ffcf6b; --warn-bg:#241a08;
  --radius:14px; --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.7;font-size:16px}
a{color:var(--brand);text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 18px}
h1,h2,h3{line-height:1.25}
img{max-width:100%;height:auto;display:block}

/* ===== HEADER 1 TẦNG ===== */
header{position:sticky;top:0;z-index:40;background:rgba(12,8,5,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr{display:flex;align-items:center;gap:14px;padding-top:11px;padding-bottom:11px}
.logo{display:flex;align-items:center;white-space:nowrap}
.logo img{height:40px;width:auto;display:block}
nav.main{display:flex;gap:2px;flex-wrap:wrap;margin-left:8px}
nav.main a{color:var(--ink);padding:8px 11px;border-radius:8px;font-size:14px;font-weight:600;white-space:nowrap;transition:color .15s,background .15s}
nav.main a:hover{color:var(--brand);background:var(--brand-soft)}
.hdr-cta{display:flex;gap:9px;margin-left:auto}
.tb-link{color:var(--ink);border:1px solid var(--line);padding:9px 16px;border-radius:9px;font-weight:700;font-size:14px;white-space:nowrap}
.tb-link:hover{border-color:var(--brand);color:var(--brand)}
.tb-link.reg{background:linear-gradient(180deg,var(--brand),var(--brand-2));color:var(--brand-ink);border-color:var(--brand)}
.tb-link.reg:hover{color:var(--brand-ink);filter:brightness(1.07)}

/* burger + drawer (mobile) */
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px;margin-left:2px}
.burger span{width:24px;height:2.5px;background:var(--brand);border-radius:2px;display:block}
.mnav-bg,.mnav{display:none}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:800;padding:14px 26px;border-radius:12px;font-size:16px;cursor:pointer}
.btn-main{background:linear-gradient(180deg,var(--brand),var(--brand-2));color:var(--brand-ink)}
.btn-main:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-red{background:linear-gradient(180deg,var(--red-2),var(--red));color:#fff}
.btn-red:hover{filter:brightness(1.08)}

/* ===== HERO (Layout A: text trái + ambassador phải) ===== */
.hero{background:radial-gradient(1100px 420px at 22% -100px,rgba(255,196,0,.16),transparent),linear-gradient(180deg,#160e06,var(--bg));border-bottom:1px solid var(--line)}
.hero .wrap{padding:42px 18px 38px}
.hero-split{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center}
.hero-l h1{font-size:33px;line-height:1.2;margin:0 0 14px}
.hero-l h1 b{color:var(--brand)}
.hero-l .sapo{color:#e3d6bd;font-size:16.5px;margin:0 0 14px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0 14px}
.applinks{display:flex;gap:14px;flex-wrap:wrap;color:var(--mut);font-size:13.5px;align-items:center}
.applinks .pill{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:24px;padding:7px 15px;color:var(--ink);font-weight:600}
.hero-r{position:relative}
.hero-r img{width:100%;border-radius:18px;border:1px solid var(--brand-2);box-shadow:0 14px 50px rgba(0,0,0,.5)}

/* trust strip (đối tác / liên minh) */
.trust{border-bottom:1px solid var(--line);background:var(--panel2)}
.trust .wrap{display:flex;align-items:center;gap:24px;padding:16px 18px;flex-wrap:wrap;justify-content:center}
.trust b{color:var(--mut);font-size:13px;font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.trust img{height:30px;width:auto;opacity:.85;filter:grayscale(.2)}
.trust img:hover{opacity:1}

/* ===== SECTIONS ===== */
main.wrap{padding-top:6px;padding-bottom:6px}
section{padding:36px 0}
.sectit{display:flex;align-items:center;gap:10px;font-size:24px;margin:0 0 6px}
.sectit::before{content:"";width:6px;height:24px;background:linear-gradient(180deg,var(--brand),var(--brand-2));border-radius:3px;display:inline-block}
.ac{color:var(--brand)}
.lead{color:var(--mut);margin:0 0 22px}

.warn{background:var(--warn-bg);border:1px solid #4a3712;border-left:4px solid var(--warn);border-radius:var(--radius);padding:18px 22px;margin:22px 0}
.warn h2{color:var(--warn);margin:0 0 6px;font-size:19px}
.warn p{margin:0;color:#e8d6a8}

/* game grid (Layout A: 3 cột card ảnh trên) */
.game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .15s,border-color .15s}
.gcard:hover{transform:translateY(-4px);border-color:var(--brand)}
.gcard img{aspect-ratio:2/1;object-fit:cover;width:100%}
.gcard .gb{padding:13px 15px}
.gcard .gb b{color:#fff;font-size:16px}
.gcard .gb p{margin:3px 0 0;color:var(--mut);font-size:13.5px}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px}
.why{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:15px 18px}
.why b{color:#fff;font-size:15.5px}
.why p{margin:5px 0 0;color:var(--mut);font-size:14px;line-height:1.55}
@media(max-width:520px){.why-grid{grid-template-columns:1fr}}

/* download steps — XẾP DỌC (số trái, nội dung phải) cho cột main hẹp, đỡ xuống dòng */
.steps{counter-reset:s;display:flex;flex-direction:column;gap:12px;list-style:none;padding:0;margin:18px 0 0}
.steps li{counter-increment:s;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:15px 18px;display:grid;grid-template-columns:38px 1fr;column-gap:15px;row-gap:2px;align-items:center}
.steps li::before{content:counter(s);grid-row:1/3;align-self:center;display:grid;place-items:center;width:34px;height:34px;background:linear-gradient(180deg,var(--brand),var(--brand-2));color:var(--brand-ink);border-radius:50%;font-weight:800;margin:0}
.steps b{grid-column:2;color:#fff;margin:0}
.steps p{grid-column:2;margin:0;color:var(--mut);font-size:14px}

/* blog list (bài mới) */
.blog-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.brow{display:flex;gap:15px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:11px;transition:border-color .15s,transform .15s}
.brow:hover{border-color:var(--brand);transform:translateY(-3px)}
.brow img{width:160px;height:104px;object-fit:cover;border-radius:10px;flex:none}
.brow .cat{display:inline-block;font-size:11px;font-weight:800;color:var(--brand-ink);background:var(--brand);padding:2px 9px;border-radius:20px;margin-bottom:6px}
.brow b{display:block;color:var(--ink);font-size:15px;line-height:1.4}

/* payment + steps why */
.provs{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin:6px 0 18px}
.provs img{height:34px;width:auto;opacity:.9}
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
details summary{font-weight:700;cursor:pointer;color:#fff}
details p{margin:10px 0 0;color:#e3d6bd}
.entity{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--radius);padding:22px 24px}

/* ===== FOOTER 3 CỘT ===== */
footer{background:var(--panel2);border-top:1px solid var(--line);margin-top:30px;font-size:14px}
footer .wrap{padding:34px 18px}
.fcols{display:grid;grid-template-columns:1.7fr 1fr 1.2fr;gap:28px}
.fbrand img{height:40px;width:auto;margin-bottom:10px}
.fbrand p{color:var(--mut);margin:0 0 12px}
footer h4{color:#fff;margin:0 0 10px;font-size:15px}
footer a{color:var(--mut);display:block;padding:3px 0}
footer a:hover{color:var(--brand)}
.fcontact{color:var(--mut);margin:10px 0 0}
.badges-row{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.badges-row img{height:38px;width:auto;opacity:.9}
.resp{color:var(--mut);border-top:1px solid var(--line);margin-top:22px;padding-top:16px;font-size:13px}
.age{display:inline-block;border:1.5px solid var(--warn);color:var(--warn);border-radius:50%;width:34px;height:34px;line-height:31px;text-align:center;font-weight:800;margin-right:10px;vertical-align:middle}
.sticky{display:none}

/* ===== TRANG CON / BÀI VIẾT (1 cột + TOC) ===== */
.breadcrumb{font-size:13px;color:var(--mut);padding:16px 0 0}
.breadcrumb a{color:var(--mut)}.breadcrumb a:hover{color:var(--brand)}
.post{max-width:840px;margin:0 auto;padding:8px 0 20px}
.post h1{font-size:30px;margin:14px 0 8px}
.post .sapo{font-size:18px;color:#e3d6bd;margin:0 0 8px}
.post h2{font-size:23px;margin:34px 0 10px;color:#fff}
.post h2::before{content:"";display:inline-block;width:6px;height:20px;background:linear-gradient(180deg,var(--brand),var(--brand-2));border-radius:3px;margin-right:10px;vertical-align:-2px}
.post h3{font-size:18px;margin:24px 0 6px;color:var(--brand)}
.post p{margin:13px 0;color:#e3d6bd}
.post figure{margin:24px 0}
.post figure img{width:100%;border:1px solid var(--line);border-radius:var(--radius)}
.post figcaption{color:var(--mut);font-size:13px;text-align:center;margin-top:8px}
.toc-box{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:14px 18px;margin:18px 0}
.toc-box b{display:block;margin-bottom:6px;color:var(--ink)}
.toc-box ol{margin:0;padding-left:20px}
.toc-box a{color:var(--mut)}.toc-box a:hover{color:var(--brand)}
.mid-cta{background:linear-gradient(180deg,#1a1206,#120c06);border:1px solid var(--brand-2);border-radius:var(--radius);padding:22px 24px;margin:30px 0;text-align:center}
.mid-cta b{color:var(--brand);font-size:18px;display:block;margin-bottom:4px}
.mid-cta p{color:#e3d6bd;margin:0 0 14px}
.related{border-top:1px solid var(--line);margin-top:36px;padding-top:20px}
.related h3{color:#fff;font-size:17px;margin:0 0 12px}
.related a{display:inline-block;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:7px 14px;margin:0 6px 8px 0;font-size:14px;color:#e3d6bd}
.related a:hover{border-color:var(--brand);color:var(--brand)}

/* ===== ARCHIVE (list card + sidebar phải) ===== */
.arch-wrap{display:grid;grid-template-columns:1fr 300px;gap:30px;align-items:start;padding-top:6px}
.alist{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.acard2{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .15s,transform .15s}
.acard2:hover{border-color:var(--brand);transform:translateY(-3px)}
.acard2 img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.acard2 .ac-body{padding:12px 14px;display:flex;flex-direction:column;gap:6px}
.acard2 b{color:var(--ink);font-size:15px;line-height:1.4}
.acard2 .more{color:var(--brand);font-size:13px;font-weight:700}
.arch-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:16px}
.side-box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px}
.side-box h3{margin:0 0 12px;font-size:16px;color:var(--ink)}
.side-cta{text-align:center}.side-cta b{display:block;margin-bottom:10px;color:var(--ink)}.side-cta .btn{width:100%;justify-content:center}
.side-cats{display:flex;flex-direction:column}
.side-cats a{padding:9px 4px;border-bottom:1px solid var(--line);color:var(--ink)}
.side-cats a:last-child{border-bottom:0}.side-cats a:hover{color:var(--brand)}

/* ===== CAPTION review (tắt khi production) ===== */
.qa{display:block;font-size:13px;line-height:1.45;color:#9aa3b2;font-style:italic;text-align:center;padding:8px 6px 0}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .hero-split{grid-template-columns:1fr}
  .hero-r img{max-height:280px;object-fit:cover}
  .game-grid,.steps{grid-template-columns:1fr 1fr}
  .blog-list{grid-template-columns:1fr}
  .fcols{grid-template-columns:1fr 1fr}
  .arch-wrap{grid-template-columns:1fr}.arch-side{position:static}
}
@media(max-width:760px){
  nav.main{display:none}
  .burger{display:flex}
  .hdr-cta{display:none}
  .hero-l h1{font-size:26px}.post h1{font-size:24px}
  /* drawer phải qua trái */
  .mnav-bg{display:block;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:60;opacity:0;visibility:hidden;transition:.2s}
  .mnav{display:flex;flex-direction:column;position:fixed;top:0;right:0;bottom:0;width:78%;max-width:300px;background:var(--panel);border-left:1px solid var(--line);z-index:61;padding:58px 18px 24px;transform:translateX(100%);transition:transform .25s ease;overflow-y:auto}
  .mnav a{color:var(--ink);padding:12px 8px;border-bottom:1px solid var(--line);font-weight:600}
  .mnav a:hover{color:var(--brand)}
  .mnav-x{position:absolute;top:14px;right:16px;font-size:22px;color:var(--mut);cursor:pointer;line-height:1}
  .mnav-tg:checked ~ .mnav{transform:translateX(0)}
  .mnav-tg:checked ~ .mnav-bg{opacity:1;visibility:visible}
  .sticky{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;gap:8px;padding:9px 12px;background:rgba(12,8,5,.97);border-top:1px solid var(--line)}
  .sticky .btn{flex:1;justify-content:center;padding:12px}
  body{padding-bottom:64px}
}
@media(max-width:520px){.game-grid,.steps,.fcols{grid-template-columns:1fr}.brow img{width:120px;height:80px}}

/* ===== partner row gọn (logo nhỏ native, không vỡ, có gap) ===== */
.trust .wrap{gap:18px 26px;padding:18px}
.trust img{height:28px;width:auto;opacity:.9;flex:none}

/* ===== hashtag footer ===== */
.ftags{display:flex;flex-wrap:wrap;gap:8px;border-top:1px solid var(--line);margin-top:22px;padding-top:18px}
.ftags a{color:var(--mut);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:5px 12px;font-size:12.5px;font-weight:600;display:inline-block}
.ftags a:hover{color:var(--brand-ink);background:var(--brand);border-color:var(--brand)}

/* ===== HOME 3-6-3 (sidebar trái | main | sidebar phải) ===== */
.home363{display:grid;grid-template-columns:3fr 6fr 3fr;gap:26px;align-items:start;padding:8px 0 10px}
.home363 .h-main{min-width:0}
.h-side{display:flex;flex-direction:column;gap:16px;position:sticky;top:90px}
.h-box{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:15px}
.h-box h3{margin:0 0 12px;font-size:15px;color:var(--ink);display:flex;align-items:center;gap:8px}
.h-box h3::before{content:"";width:5px;height:16px;background:linear-gradient(180deg,var(--brand),var(--brand-2));border-radius:3px}
.h-cta{text-align:center}
.h-cta .btn{width:100%;justify-content:center;margin-bottom:8px;padding:12px}
.h-cta .btn:last-child{margin-bottom:0}
.hot-nav{display:flex;flex-direction:column}
.hot-nav a{padding:9px 4px;border-bottom:1px solid var(--line);color:var(--ink);font-weight:600;font-size:14px;display:flex;justify-content:space-between}
.hot-nav a:last-child{border-bottom:0}.hot-nav a:hover{color:var(--brand)}
.hot-nav a span{color:var(--mut);font-weight:400}
.pay-mini{display:flex;flex-wrap:wrap;gap:10px}
.pay-mini img{height:26px;width:auto;opacity:.9}
.s-recent{display:flex;flex-direction:column;gap:11px}
.s-rc{display:flex;gap:10px;align-items:center}
.s-rc img{width:74px;height:50px;object-fit:cover;border-radius:7px;flex:none;border:1px solid var(--line)}
.s-rc b{font-size:13px;color:var(--ink);line-height:1.4;font-weight:600}.s-rc:hover b{color:var(--brand)}
.s-banner img{width:100%;border-radius:10px;border:1px solid var(--line);display:block}
.contact-pills{display:flex;flex-direction:column;gap:8px}
.contact-pills a{display:flex;align-items:center;gap:8px;color:var(--ink);background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:9px 12px;font-size:13.5px;font-weight:600}
.contact-pills a:hover{border-color:var(--brand);color:var(--brand)}
.home363 .h-main section{padding:24px 0}
.home363 .h-main section:first-child{padding-top:6px}
@media(max-width:1000px){
  .home363{grid-template-columns:1fr}
  .h-side{position:static;flex-direction:row;flex-wrap:wrap}
  .h-side .h-box{flex:1;min-width:240px}
}
@media(max-width:560px){.h-side{flex-direction:column}.h-side .h-box{min-width:0}}