/* rikbet1uk — TEMPLATE C: giao diện SÁNG, tông HỒNG. Header 2 tầng sáng (topbar hồng + header trắng),
   hero 8|4 ảnh phải, footer SÁNG. Khác net88auk (3-tầng tối / 4|8 / footer đen) → phá footprint. */
:root{
  --pink:#ff3d7f; --pink-2:#d61f5f; --gold:#ffb02e; --ink:#1c2030; --mut:#71768a;
  --bg:#f6f5f9; --card:#ffffff; --line:#eceaf2; --soft:#fbfafd;
  --shadow:0 8px 26px rgba(40,20,60,.08); --radius:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;font-size:16px;line-height:1.7;color:var(--ink);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--pink);text-decoration:none}
h1,h2,h3,h4{line-height:1.25}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.ac{color:var(--pink)}
.lead{color:var(--mut);margin:2px 0 16px}

.btn{display:inline-flex;align-items:center;gap:6px;font-weight:800;font-size:14px;padding:11px 20px;border-radius:999px;border:1.5px solid transparent;cursor:pointer}
.btn-main{background:var(--pink);color:#fff}
.btn-main:hover{background:var(--pink-2)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}

/* HEADER 2 tầng SÁNG: topbar HỒNG + header TRẮNG 1 hàng */
.topbar{background:linear-gradient(90deg,var(--pink),var(--pink-2));color:#fff;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding:7px 18px}
.topbar b{color:#fff}
header{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(40,20,60,.05)}
.nhd{display:flex;align-items:center;gap:22px;padding-top:12px;padding-bottom:12px}
.nhd .logo{flex:none}
.nmenu{display:flex;flex-wrap:wrap;gap:4px;flex:1;justify-content:center}
.nmenu a{color:var(--ink);font-weight:600;font-size:14px;padding:8px 12px;border-radius:999px}
.nmenu a:hover{color:var(--pink);background:#ffeef4}
.ncta{display:flex;gap:9px;flex:none}
.lnk{color:var(--ink);border:1.5px solid var(--line);padding:8px 15px;border-radius:999px;font-weight:700;font-size:14px;white-space:nowrap}
.lnk.reg{background:var(--pink);color:#fff;border-color:var(--pink)}

/* HERO 8|4 — text TRÁI (8) + ảnh PHẢI (4) */
.hero{background:radial-gradient(900px 320px at 80% -40px,#ffe3ee,transparent),#fff;border-bottom:1px solid var(--line)}
.hero84{display:grid;grid-template-columns:8fr 4fr;gap:34px;align-items:center;padding-top:34px;padding-bottom:34px}
.hero84 .h-img img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow)}
.hero84 h1{font-size:32px;margin:0 0 12px}.hero84 h1 b{color:var(--pink)}
.hero84 .sapo{color:#3a4054;font-size:16px;margin:0 0 8px}
.hero84 .sapo a{font-weight:700}

section{margin:30px 0}
h2.sec{font-size:24px;margin:0 0 4px}
.warn{background:#fff0f5;border:1px solid #ffc9dd;border-left:5px solid var(--pink);border-radius:14px;padding:16px 20px;margin:24px 0}
.warn h2{color:#b01253;font-size:18px;margin:0 0 6px}
.warn p{color:#8a3560;margin:0}

/* KHO GAME TAB (CSS-only) — id theo silo rikbet1 */
.gtabs input{position:absolute;opacity:0;pointer-events:none}
.gtab-labels{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 14px}
.gtab-labels label{cursor:pointer;padding:9px 16px;border:1.5px solid var(--line);border-radius:999px;font-weight:700;font-size:14px;color:var(--mut);background:#fff;user-select:none}
.gtab-labels label:hover{border-color:var(--pink);color:var(--pink)}
.gpanel{display:none;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;grid-template-columns:300px 1fr;gap:0}
.gpanel img{width:100%;height:100%;object-fit:cover}
.gpanel .gp-body{padding:22px 26px}
.gpanel .gp-body h3{font-size:20px;margin:0 0 8px}
.gpanel .gp-body p{color:#445;margin:0 0 14px}
#gt-the-thao:checked~.gtab-panels .gp-the-thao,
#gt-casino:checked~.gtab-panels .gp-casino,
#gt-ban-ca:checked~.gtab-panels .gp-ban-ca,
#gt-xo-so:checked~.gtab-panels .gp-xo-so,
#gt-da-ga:checked~.gtab-panels .gp-da-ga{display:grid}
#gt-the-thao:checked~.gtab-labels label[for=gt-the-thao],
#gt-casino:checked~.gtab-labels label[for=gt-casino],
#gt-ban-ca:checked~.gtab-labels label[for=gt-ban-ca],
#gt-xo-so:checked~.gtab-labels label[for=gt-xo-so],
#gt-da-ga:checked~.gtab-labels label[for=gt-da-ga]{background:var(--pink);color:#fff;border-color:var(--pink)}

/* BÀI VIẾT SLIDE */
.slider{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 2px 14px}
.slider::-webkit-scrollbar{height:8px}.slider::-webkit-scrollbar-thumb{background:#e0d6e6;border-radius:8px}
.sl-card{flex:0 0 270px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.sl-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.sl-card .sl-b{padding:12px 14px}
.sl-card .cat{display:inline-block;font-size:11px;font-weight:800;color:#fff;background:var(--pink);padding:2px 9px;border-radius:20px;margin-bottom:6px}
.sl-card b{display:block;font-size:14px;color:var(--ink);line-height:1.4}

/* 6|6 */
.split66{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 24px}
.box h3{font-size:18px;margin:0 0 14px}
.provs{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.provs img{height:30px;width:auto;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 10px}
.steps{list-style:none;counter-reset:s;display:flex;flex-direction:column;gap:14px;margin:0}
.steps li{counter-increment:s;padding-left:46px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:var(--pink);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.steps b{display:block}.steps p{color:var(--mut);margin:2px 0 0;font-size:14px}

/* HƯỚNG DẪN CÀI APP: banner + 4 cột */
.app-banner{width:100%;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);margin:6px 0 18px}
.install4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.ins{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 16px;text-align:center}
.ins .num{display:inline-flex;width:36px;height:36px;border-radius:50%;background:var(--pink);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:10px;font-size:17px}
.ins b{display:block;margin-bottom:5px}.ins p{color:var(--mut);font-size:13px;margin:0}

/* entity + FAQ */
.entity{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--pink);border-radius:14px;padding:18px 22px}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:8px 0}
summary{font-weight:700;cursor:pointer}details p{color:#445;margin:8px 0 0}

/* FOOTER SÁNG (12 → 4|4|4 → căn giữa) */
footer{background:#fff;border-top:1px solid var(--line);margin-top:36px;padding:30px 0 22px}
.ft-top{padding-bottom:18px;border-bottom:1px solid var(--line)}
.ft-top h4{font-size:16px;margin:0 0 6px}.ft-top p{color:var(--mut);max-width:760px}
.ft-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-top:22px;padding-bottom:22px}
.ft-cols h4{font-size:15px;margin:0 0 10px}
.ft-cols a{display:block;color:var(--mut);padding-top:4px;padding-bottom:4px}.ft-cols a:hover{color:var(--pink)}
.ft-cols p{color:var(--mut);margin:0 0 6px}
.ft-center{text-align:center;border-top:1px solid var(--line);padding-top:20px}
.ft-center .ft-logo{margin:0 auto 10px}
.badges-row{display:flex;gap:14px;justify-content:center;margin:10px 0}
.badges-row img{height:34px;width:auto}
.resp{color:var(--mut);font-size:13px;max-width:760px;margin:8px auto 0}
.resp .age{display:inline-block;background:var(--pink);color:#fff;font-weight:800;border-radius:6px;padding:1px 7px;margin-right:6px}

/* STICKY mobile */
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:50;display:none;gap:10px;padding:10px 14px;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 20px rgba(0,0,0,.08)}
.sticky .btn{flex:1;justify-content:center}

/* BÀI VIẾT (article) sáng */
.breadcrumb{font-size:13px;color:var(--mut);padding:16px 0 0}
.breadcrumb a{color:var(--mut)}.breadcrumb a:hover{color:var(--pink)}
.post{max-width:820px;margin:0 auto;padding:6px 0 20px}
.post h1{font-size:29px;margin:12px 0 8px}
.post .sapo{font-size:17px;color:#3a4054;margin:0 0 8px}
.post h2{font-size:22px;margin:30px 0 10px;border-left:4px solid var(--pink);padding-left:12px}
.post h3{font-size:18px;margin:22px 0 6px;color:var(--pink-2)}
.post p{margin:13px 0}
.post figure{margin:22px 0}.post figure img{width:100%;border:1px solid var(--line);border-radius:14px}
.post figcaption.qa{font-size:13px;color:var(--mut);font-style:italic;text-align:center;margin-top:7px}
.toc-box{background:var(--soft);border:1px solid var(--line);border-left:4px solid var(--pink);border-radius:14px;padding:14px 18px;margin:18px 0}
.toc-box b{display:block;margin-bottom:6px}.toc-box ol{margin:0;padding-left:20px}
.toc-box a{color:var(--mut)}.toc-box a:hover{color:var(--pink)}
.mid-cta{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:22px;margin:28px 0;text-align:center}
.mid-cta b{display:block;font-size:18px;margin-bottom:4px}.mid-cta p{color:var(--mut);margin:0 0 14px}
.related{margin:26px 0 0;border-top:1px solid var(--line);padding-top:16px}
.related h3{font-size:17px;margin:0 0 10px}
.related a{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 13px;margin:0 8px 8px 0;font-size:14px;color:var(--ink)}
.related a:hover{border-color:var(--pink);color:var(--pink)}

/* ARCHIVE grid căn giữa (giữ biến thể rikbet1) sáng */
.alist{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.alist-3{grid-template-columns:repeat(3,1fr);max-width:1040px;margin:0 auto}
.acard2{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
.acard2:hover{border-color:var(--pink)}
.acard2 img{width:100%;aspect-ratio:16/10;object-fit:cover}
.acard2 .ac-body{padding:12px 14px}.acard2 b{font-size:15px;line-height:1.4}
.acard2 .more{display:block;color:var(--pink);font-size:13px;font-weight:700;margin-top:6px}

/* MOBILE */
@media(max-width:900px){
  .hero84{grid-template-columns:1fr}
  .split66{grid-template-columns:1fr}
  .ft-cols{grid-template-columns:1fr 1fr}
  .sticky{display:flex}
  .topbar .wrap span:last-child{display:none}
  .nmenu{justify-content:flex-start}
}
@media(max-width:760px){.install4{grid-template-columns:1fr 1fr}}
@media(max-width:560px){
  .alist,.alist-3{grid-template-columns:1fr}
  .ft-cols{grid-template-columns:1fr}
  .gpanel{grid-template-columns:1fr}
  .install4{grid-template-columns:1fr}
  .hero84 h1{font-size:25px}.post h1{font-size:23px}
}

/* ===== Bruce: header tầng 2 ĐEN + footer ĐEN (giữ topbar hồng + body sáng) ===== */
header{background:#0d0d10;border-bottom:1px solid #000;box-shadow:none}
.nmenu a{color:#e8e8ee}
.nmenu a:hover{color:#fff;background:rgba(255,255,255,.14)}
.lnk{color:#fff;border-color:rgba(255,255,255,.5)}
.lnk.reg{background:var(--pink);border-color:var(--pink);color:#fff}
footer{background:#0d0d10;border-top:1px solid #000;color:#9a9aa6}
.ft-top{border-bottom-color:#26262e}
.ft-top h4,.ft-cols h4{color:#fff}
.ft-top p,.ft-cols a,.ft-cols p,.resp{color:#9a9aa6}
.ft-cols a:hover{color:#fff}
.ft-center{border-top-color:#26262e}

/* ===== Menu mobile: nút ☰ (absolute trong header) + DRAWER phải ===== */
.nav-toggle{display:none}
.burger{display:none;cursor:pointer;line-height:0;padding:4px;margin-left:auto;align-self:center}
.nav-backdrop{display:none}
@media(max-width:900px){
  .burger{display:block !important}
  .ncta{display:none}
  .nav-backdrop{display:block;position:fixed;inset:0;background:rgba(0,0,0,.5);opacity:0;visibility:hidden;transition:.28s;z-index:70}
  #nvt:checked ~ .nav-backdrop{opacity:1;visibility:visible}
  .nmenu{position:fixed;top:0;right:0;bottom:0;width:min(82vw,320px);background:#0d0d10;transform:translateX(100%);transition:transform .3s ease;z-index:80;display:flex;flex-direction:column;align-items:stretch;gap:0;max-width:none;padding:60px 0 20px;overflow-y:auto;box-shadow:-8px 0 30px rgba(0,0,0,.4)}
  #nvt:checked ~ .nmenu{transform:translateX(0)}
  .nmenu .nmenu,.nmenu.nmenu{flex-direction:column;align-items:stretch;gap:0;max-width:none;padding:0}
  .nmenu a,.nmenu.nmenu a{padding:15px 24px;border-bottom:1px solid rgba(255,255,255,.12);width:100%;border-radius:0;color:#fff}
}