/* Bot Trade Việt — phong cách: nền kem sáng, khối đen, điểm nhấn vàng cam, tiêu đề chữ hẹp in hoa */
:root{
  --bg:#FBF8F2; --ink:#14161C; --dark:#0B0D12; --dark2:#151921; --dark3:#1E232D;
  --amber:#F5A623; --amber2:#FFC75A; --amberd:#A66400; --red:#E23B3B; --line:#E8E1D3; --muted:#5F6572;
  --ok:#17A673; --mid:#C98200; --hot:#D93636;
  --head:'Oswald','Bebas Neue',Impact,'Arial Narrow',sans-serif;
  --body:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.7;font-weight:400;overflow-x:hidden}
a{color:inherit}
img,svg{max-width:100%}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px}
.wrap{max-width:1240px;margin:0 auto;padding-inline:max(16px,env(safe-area-inset-left,0px))}
.narrow{max-width:820px}
h1,h2,h3,h4{font-family:var(--head);font-weight:600;line-height:1.12;margin:0;letter-spacing:.01em;text-wrap:balance}

/* topbar + header */
.topbar{background:var(--amber);color:#1A1200;font-size:13px;font-weight:500}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding-block:7px;flex-wrap:wrap}
.topbar span{display:flex;align-items:center;gap:6px}
.topbar svg{width:16px;height:16px;stroke:#1A1200}
.topbar a{text-decoration:none;font-weight:600}
header.top{position:sticky;top:0;z-index:50;background:var(--dark);border-bottom:1px solid #222733}
header .in{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-family:var(--head);font-size:24px;font-weight:700;letter-spacing:.05em}
.brand svg{width:42px;height:42px;flex:none}
.brand b{color:var(--amber);font-weight:700}
header nav{display:flex;gap:24px;flex-wrap:wrap;font-size:14px;font-weight:500}
header nav a{color:#D6D9E0;text-decoration:none;transition:color .2s}
header nav a:hover{color:var(--amber)}
.pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:999px;font-weight:600;font-size:14px;text-decoration:none;border:1.5px solid transparent;cursor:pointer;font-family:var(--body);transition:transform .2s,filter .2s,background .2s,color .2s;line-height:1.2}
.pill svg{width:18px;height:18px;flex:none}
.pill:hover{transform:translateY(-2px)}
.pill.amber{background:var(--amber);color:#1A1200}
.pill.amber svg{stroke:#1A1200}
.pill.amber:hover{filter:brightness(1.06)}
.pill.ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.pill.ghost:hover{background:var(--ink);color:#fff}
.pill.ghost-d{border-color:#4A5164;color:#fff;background:transparent}
.pill.ghost-d:hover{border-color:var(--amber);color:var(--amber)}
.pill.lg{padding:15px 30px;font-size:15px}
.pill.sm{padding:8px 16px;font-size:13px}
.pill.full{width:100%}
.pill:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* hero */
.hero{position:relative;background:var(--dark);color:#fff;overflow:hidden;isolation:isolate}
.hero-art{position:absolute;inset:0;z-index:-1}
.hero-art svg,.hero-art canvas{position:absolute;inset:0;width:100%;height:100%}
.hero-art svg{opacity:.55}
.hero-art::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--dark) 14%,rgba(11,13,18,.55) 52%,rgba(11,13,18,.1) 100%),linear-gradient(0deg,var(--dark),transparent 25%)}
.hero-in{position:relative;padding-block:96px 110px}
.tagpill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--amber);color:var(--amber2);padding:6px 16px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.14em;margin-bottom:26px}
.tagpill svg{width:15px;height:15px;stroke:var(--amber)}
.tagpill.sm{font-size:11px;padding:5px 12px;margin-bottom:18px}
.hero h1{font-size:clamp(46px,8vw,104px);text-transform:uppercase;line-height:1.02;max-width:12ch;margin-bottom:26px}
.hero h1 span{color:var(--amber);display:block;font-size:.62em;line-height:1.1;margin-top:10px}
.lead{font-size:clamp(16px,1.6vw,19px);color:#C3C8D4;max-width:54ch;margin:0 0 32px}
.hfeat{display:flex;gap:30px;flex-wrap:wrap;margin-bottom:36px}
.hfeat div{display:flex;align-items:center;gap:12px;font-size:14px;line-height:1.3;color:#E6E8EE}
.hfeat svg{width:46px;height:46px;padding:10px;border:1px solid var(--amber);border-radius:50%;flex:none}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.illus{position:absolute;right:max(16px,env(safe-area-inset-right,0px));bottom:24px;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#7B8294}

/* panel đen (giống khối khuyến mãi) */
#noi-bat{margin-top:-56px;position:relative;z-index:3}
.panel{display:grid;grid-template-columns:minmax(280px,.8fr) 2fr;background:linear-gradient(135deg,#2A1D07 0%,var(--dark2) 38%,var(--dark) 100%);border-radius:28px;overflow:hidden;color:#fff;box-shadow:0 30px 60px -30px rgba(0,0,0,.5)}
.panel-l{padding:34px}
.panel-l h2{font-size:clamp(34px,4vw,50px);text-transform:uppercase;margin-bottom:20px}
.panel-l h2 span{color:var(--amber)}
.tboxes{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:18px}
.tbox{background:var(--dark3);border:1px solid #2C3342;border-radius:10px;text-align:center;padding:10px 4px;min-width:0}
.tbox b{display:block;font-family:var(--head);font-size:22px;color:#fff;font-weight:600}
.tbox i{display:block;font-style:normal;font-size:10px;color:#9AA0AD;line-height:1.2}
.note-box{display:flex;gap:12px;align-items:center;border:1px solid #2C3342;border-radius:12px;padding:12px 14px;margin-bottom:22px;background:rgba(255,255,255,.03)}
.note-box .fi{width:38px;height:38px;border-radius:10px;background:var(--amber);display:grid;place-items:center;flex:none}
.note-box .fi svg{stroke:#1A1200;width:22px;height:22px}
.note-box b{display:block;font-size:13px}
.note-box small{color:#9AA0AD;font-size:12px}
.panel-r{padding:26px 26px 26px 6px;min-width:0}
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:thin;scrollbar-color:var(--amber) transparent}
.pcard{position:relative;flex:0 0 240px;scroll-snap-align:start;background:#fff;color:var(--ink);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.pimg{aspect-ratio:4/3;background:var(--dark)}
.pimg svg{width:100%;height:100%;display:block}
.pbody{padding:14px 16px 16px;display:flex;flex-direction:column;gap:4px;flex:1}
.pbody small{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.1em}
.pbody h3{font-family:var(--body);font-weight:600;font-size:15px;line-height:1.35}
.pfoot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:10px;gap:8px}
.pstat{color:var(--red);font-weight:600;font-size:14px}
.pcard:not(.live) .pstat{color:var(--muted)}
.cartbtn{width:34px;height:34px;border-radius:50%;background:#FFF1D6;display:grid;place-items:center;flex:none}
.cartbtn svg{width:18px;height:18px;stroke:var(--amberd)}
.badge{position:absolute;top:10px;left:10px;z-index:2;padding:3px 10px;border-radius:6px;font-size:12px;font-weight:600;color:#fff}
.badge.red{background:var(--red)} .badge.dark{background:#2B3140} .badge.amber{background:var(--amber);color:#1A1200}

/* section */
.sec{padding:96px 0}
.sec.alt{background:#F3EDE0}
.stitle{margin-bottom:40px}
.stitle h2{font-size:clamp(30px,4.2vw,50px);text-transform:uppercase}
.stitle h2 span{color:var(--amber)}
.stitle-sub{margin:10px 0 0;color:var(--muted);max-width:66ch}
.sec.alt .stitle h2 span,.sec .stitle h2 span{color:#E8960C}
.grid4{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.fcard{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;transition:transform .3s,box-shadow .3s}
.fcard:hover{transform:translateY(-4px);box-shadow:0 20px 40px -24px rgba(0,0,0,.35)}
.fi{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:14px;background:var(--dark);margin-bottom:16px}
.fcard h3{font-size:24px;margin-bottom:8px;text-transform:uppercase}
.fcard p{margin:0;color:var(--muted);font-size:15px}

/* sản phẩm chi tiết */
.pdetail{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px}
.pd-img{position:relative;border-radius:18px;overflow:hidden;aspect-ratio:4/3;background:var(--dark)}
.pd-img svg{width:100%;height:100%;display:block}
.specs{border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:24px}
.srow{display:flex;justify-content:space-between;gap:16px;padding:13px 18px;font-size:15px;border-bottom:1px solid var(--line)}
.srow:nth-child(odd){background:#FBF8F2}
.srow:last-child{border-bottom:0}
.srow span:first-child{color:var(--muted)}
.srow span:last-child{font-weight:600;text-align:right}

/* vé (giống thẻ mã ưu đãi) */
.tickets{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:24px}
.tk{position:relative;background:linear-gradient(160deg,#2B1F08 0%,var(--dark2) 45%,var(--dark) 100%);color:#fff;border-radius:18px;padding:26px 26px 22px}
.tk::before,.tk::after{content:"";position:absolute;top:66%;width:20px;height:20px;border-radius:50%;background:var(--bg);transform:translateY(-50%)}
.sec.alt .tk::before,.sec.alt .tk::after{background:#F3EDE0}
.tk::before{left:-10px}.tk::after{right:-10px}
.tk-top{display:flex;gap:14px;align-items:flex-start}
.tk-ico{width:44px;height:44px;border-radius:50%;background:var(--amber);display:grid;place-items:center;flex:none}
.tk-ico svg{stroke:#1A1200}
.tk h3{font-size:24px;text-transform:uppercase;margin-bottom:8px}
.tk ul{list-style:none;margin:0;padding:0;font-size:13px;color:#B9BECB;display:grid;gap:4px}
.tk li::before{content:"✓ ";color:var(--amber)}
.tk-price{font-family:var(--head);font-size:34px;color:var(--amber2);margin:22px 0 18px}
.tk-line{border-top:2px dashed #3A4156;margin:0 -26px 16px}
.tk-bot{display:flex;justify-content:space-between;align-items:center;gap:10px}
.tk .code{display:inline-flex;align-items:center;gap:6px;color:var(--amber2);font-family:var(--mono);font-size:13px;font-weight:500}
.tk .code svg{width:16px;height:16px}

/* mức rủi ro */
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:22px}
.tier{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;border-top:6px solid var(--c,var(--amber))}
.tier.high{--c:var(--hot)} .tier.mid{--c:var(--mid)} .tier.low{--c:var(--ok)}
.acc{font-family:var(--head);font-size:56px;font-weight:600;line-height:1}
.acc small{font-family:var(--mono);font-size:13px;color:var(--muted);letter-spacing:.1em}
.lvl{display:inline-block;margin:14px 0 18px;padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600;color:#fff;background:var(--c)}
.meter{height:7px;background:#EEE7D8;border-radius:7px;overflow:hidden;margin-bottom:20px}
.meter i{display:block;height:100%;background:var(--c);border-radius:7px}
.tier dl{margin:0;display:grid;gap:12px;font-size:14px}
.tier dl div{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding-bottom:10px}
.tier dt{color:var(--muted)} .tier dd{margin:0;font-family:var(--mono);text-align:right;font-variant-numeric:tabular-nums;font-size:13px}
.note{font-size:13px;color:var(--muted);margin:22px 0 0;max-width:80ch}
.note a{color:var(--amberd);font-weight:600}

/* kiểm tra */
.cols2{display:grid;grid-template-columns:1fr 1.2fr;gap:44px;align-items:start}
.cred{background:var(--dark);color:#fff;border-radius:20px;padding:30px;display:grid;gap:14px;font-size:14px}
.cred h3{font-size:24px;text-transform:uppercase;color:var(--amber);margin-bottom:6px}
.cred div{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid #2C3342;padding-bottom:12px;font-family:var(--mono)}
.cred div:last-child{border-bottom:0;padding-bottom:0}
.cred div span:first-child{color:#9AA0AD}
.cred em{font-style:normal;color:var(--amber2)}
.h3d{font-size:24px;text-transform:uppercase;margin-bottom:12px}
.h3d small{font-family:var(--body);font-size:13px;color:var(--muted);text-transform:none;font-weight:400;margin-left:8px}
.tblwrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:16px}
.tbl{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:14px;font-variant-numeric:tabular-nums}
.tbl th{text-align:left;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:500;padding:14px 16px;background:#F7F2E7;border-bottom:2px solid var(--amber)}
.tbl td{padding:14px 16px;border-bottom:1px solid var(--line)}
.tbl tr:last-child td{border-bottom:0}
.tbl td:last-child,.tbl th:last-child{text-align:right}

/* bài viết dạng thẻ */
.agrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.acard{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;text-decoration:none;transition:transform .3s,box-shadow .3s}
.acard:hover{transform:translateY(-5px);box-shadow:0 24px 44px -26px rgba(0,0,0,.4)}
.aimg{aspect-ratio:3/2;background:var(--dark);overflow:hidden}
.aimg svg{width:100%;height:100%;display:block;transition:transform .5s}
.acard:hover .aimg svg{transform:scale(1.05)}
.abody{padding:18px 20px 22px}
.abody small{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.1em}
.abody h3{font-family:var(--body);font-weight:600;font-size:17px;line-height:1.4;margin:6px 0}
.abody p{margin:0;color:var(--muted);font-size:14px}

/* các bước */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;counter-reset:s}
.steps li{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}
.steps .n{width:44px;height:44px;border-radius:50%;background:var(--amber);color:#1A1200;display:grid;place-items:center;font-family:var(--head);font-size:22px;font-weight:700}
.steps h3{font-size:20px;text-transform:uppercase;margin-bottom:4px}
.steps p{margin:0;color:var(--muted);font-size:14px}

/* hỏi đáp, đồng ý */
.faq{max-width:860px}
details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:0 22px}
summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center;padding:18px 0;font-weight:600;font-size:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--head);font-size:28px;color:var(--amber);transition:transform .25s;line-height:1}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:0 0 18px;color:var(--muted)}
.consent{max-width:820px}
.chk{display:grid;grid-template-columns:24px 1fr;gap:14px;align-items:start;padding:16px 0;border-bottom:1px solid var(--line);cursor:pointer;color:#3C414D}
.chk input{width:20px;height:20px;margin-top:4px;accent-color:var(--amber)}
.plan-pick{margin:18px 0 0;padding:10px 16px;background:#FFF1D6;border-radius:10px;font-size:14px}
.consent .pill{margin-top:26px}

/* băng liên hệ */
.cta-band{background:var(--dark);color:#fff;padding:84px 0;background-image:radial-gradient(700px 300px at 85% 0%,rgba(245,166,35,.22),transparent 70%)}
.cb-text h2{font-size:clamp(30px,4.2vw,50px);text-transform:uppercase}
.cb-text h2 span{color:var(--amber)}
.cb-text p{color:#B9BECB;margin:10px 0 36px}
.contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.cc{background:var(--dark2);border:1px solid #2C3342;border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:8px;min-width:0}
.cc small{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--amber)}
.cc b{font-family:var(--mono);font-size:17px;font-weight:500;word-break:break-all}
.cc .row{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}

/* footer */
.foot{background:#07080C;color:#9AA0AD;padding:54px 0 90px;font-size:14px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:40px;margin-bottom:30px}
.foot h4{color:#fff;font-size:18px;text-transform:uppercase;margin-bottom:12px}
.foot a{display:block;text-decoration:none;color:#9AA0AD;margin-bottom:8px}
.foot a:hover{color:var(--amber)}
.foot .brand{display:flex;margin-bottom:14px}
.foot p{margin:0;max-width:44ch}
.legal{border-top:1px solid #1D212B;padding-top:22px;font-size:12px;max-width:none!important}

/* nút nổi */
.float{position:fixed;right:max(14px,env(safe-area-inset-right,0px));bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:60}
.fab{width:48px;height:48px;border-radius:50%;border:0;background:var(--amber);color:#1A1200;font-weight:700;font-size:18px;cursor:pointer;display:grid;place-items:center;text-decoration:none;box-shadow:0 10px 24px -8px rgba(0,0,0,.5);font-family:var(--body)}
.fab.zalo{font-size:12px;background:#0068FF;color:#fff}
#up{opacity:0;pointer-events:none;transition:opacity .25s}
#up.show{opacity:1;pointer-events:auto}

/* bài viết chi tiết */
.article{padding:44px 0 90px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:18px}
.crumbs a{text-decoration:none;color:var(--amberd)}
.article .badge{position:static;display:inline-block;margin-bottom:14px}
.article h1{font-size:clamp(34px,5vw,56px);text-transform:uppercase;margin-bottom:12px}
.meta{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.08em;margin:0 0 26px}
.acover{border-radius:20px;overflow:hidden;margin-bottom:30px;aspect-ratio:3/2;background:var(--dark)}
.acover svg{width:100%;height:100%;display:block}
.lead2{font-size:19px;color:#2C313C;border-left:4px solid var(--amber);padding-left:18px;margin:0 0 10px}
.article h2{font-size:28px;margin:34px 0 10px;text-transform:uppercase}
.article p{margin:0 0 14px;color:#2C313C}
.art-cta{background:var(--dark);color:#fff;border-radius:20px;padding:28px;margin:40px 0 18px}
.art-cta h3{font-size:26px;text-transform:uppercase;color:var(--amber);margin-bottom:6px}
.art-cta p{color:#B9BECB}
.legal-s{font-size:12px;color:var(--muted)!important}
.relh{font-size:34px;text-transform:uppercase;margin:56px 0 22px}
.relh span{color:#E8960C}

/* hiệu ứng cuộn: mặc định hiện, chỉ động khi trình duyệt hỗ trợ */
@supports (animation-timeline:view()){
  .rv{animation:rv linear both;animation-timeline:view();animation-range:entry 0% entry 30%}
  @keyframes rv{from{opacity:.2;transform:translateY(30px)}to{opacity:1;transform:none}}
}
@media (max-width:980px){
  .panel{grid-template-columns:1fr}
  .panel-r{padding:0 20px 24px}
  .pdetail,.cols2{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .sec{padding:70px 0}
  header nav{order:3;width:100%;overflow-x:auto;flex-wrap:nowrap;white-space:nowrap;gap:20px;padding-bottom:2px;scrollbar-width:none}
  .hero-in{padding-block:64px 90px}
  .illus{display:none}
}
@media (max-width:560px){
  .topbar a{display:none}
  .tboxes{grid-template-columns:repeat(2,1fr)}
  .pcard{flex-basis:78%}
  .hfeat{gap:18px}
  .hero h1{max-width:none}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}