/* bodyrangers.com · CSS dùng chung. Màu, font theo brand/ (Baloo 2 tiêu đề, Be Vietnam Pro chữ đậm, nội dung Latin-first). */
@font-face{font-family:"Baloo 2";src:url(fonts/baloo2-800.woff2) format("woff2");font-weight:800;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(fonts/bvp-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(fonts/bvp-700.woff2) format("woff2");font-weight:700;font-display:swap}

:root{
  /* Latin-first: SF Pro / Segoe UI / Noto Sans đủ dấu tiếng Việt; font Nhật xếp cuối. */
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI","Be Vietnam Pro","Noto Sans",Roboto,"Liberation Sans",Arial,"Meiryo UI","Hiragino Sans","Yu Gothic","Noto Sans JP",sans-serif;
  --head:"Baloo 2","Be Vietnam Pro",var(--sans);
  --ui:"Be Vietnam Pro",var(--sans);
  --navy:#0B1F33;--ink:#06121D;--teal:#14B8A6;--teal-deep:#0D9488;--mint:#5EEAD4;--slate:#3D5568;
  --soi:#14B8A6;--coi:#E11D48;--phe:#84CC16;--mua:#F59E0B;--dung:#6366F1;
  --bg:#F8FAF9;--card:#FFFFFF;--text:#0B1F33;--muted:#4A6072;--line:#DCE7E5;--accent:#0D9488;
  --hero:#071521;--hero-2:#0E2235;--hero-text:#E8F4F2;--hero-muted:#9FB6C4;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#071521;--card:#0E2235;--text:#E8F4F2;--muted:#9FB6C4;--line:#1E3A52;--accent:#5EEAD4;
  --hero:#040D16;--hero-2:#0B1C2C;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 17px/1.65 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
h1,h2,h3{font-family:var(--head);font-weight:800;line-height:1.15;margin:0 0 .4em;letter-spacing:-.005em}
h1{font-size:clamp(2.1rem,6vw,3.4rem)}
h2{font-size:clamp(1.6rem,4vw,2.3rem)}
h3{font-size:1.3rem}
p{margin:0 0 1em}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:12px;background:#fff;color:#000;padding:8px 12px;z-index:9;border-radius:8px}
:focus-visible{outline:3px solid var(--mint);outline-offset:3px;border-radius:6px}

/* Đầu trang (luôn nền tối như video) */
.top{background:var(--hero);color:var(--hero-text)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand img{height:46px;width:auto}
.nav{display:flex;gap:6px;flex-wrap:wrap;font:600 .92rem/1 var(--ui)}
.nav a{color:var(--hero-text);text-decoration:none;padding:9px 12px;border-radius:999px}
.nav a:hover{background:rgba(94,234,212,.12)}
.nav a.lang{border:1px solid rgba(94,234,212,.4)}

/* Hero */
.hero{background:radial-gradient(1200px 500px at 75% 20%,#123651 0,transparent 60%),var(--hero);color:var(--hero-text);padding:30px 0 64px;overflow:hidden}
.hero .grid{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.kicker{font:700 .82rem/1 var(--ui);letter-spacing:.14em;text-transform:uppercase;color:var(--mint);margin-bottom:14px}
.hero h1 span{color:var(--mint)}
.lead{font-size:1.15rem;color:var(--hero-muted);max-width:34em}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.btn{display:inline-flex;align-items:center;gap:8px;font:700 1rem/1 var(--ui);padding:14px 20px;border-radius:999px;text-decoration:none}
.btn.pri{background:var(--teal);color:#04201C}
.btn.pri:hover{background:var(--mint)}
.btn.sec{color:var(--hero-text);border:1.5px solid rgba(232,244,242,.35)}
.btn.sec:hover{border-color:var(--mint)}
.shot{position:relative}
.shot figure{margin:0;border-radius:18px;overflow:hidden;border:1px solid #1E3A52;box-shadow:0 30px 60px -20px rgba(0,0,0,.6)}
.shot figcaption{font-size:.85rem;color:var(--hero-muted);margin-top:10px}
.shot .bb{position:absolute;width:150px;right:-18px;bottom:-34px;filter:drop-shadow(0 12px 18px rgba(0,0,0,.45))}

/* Khối */
section{padding:64px 0}
.sec-head{max-width:640px;margin-bottom:28px}
.sec-head p{color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px 18px 20px;position:relative;overflow:hidden}
.card h3{margin:6px 0 4px}
.card p{margin:0;color:var(--muted);font-size:.97rem}
.series .card{border-top:6px solid var(--c)}
.series .card img{width:96px;height:96px;margin:-4px 0 0 -8px}
.s-soi{--c:var(--soi)}.s-coi{--c:var(--coi)}.s-phe{--c:var(--phe)}.s-mua{--c:var(--mua)}.s-dung{--c:var(--dung)}
.series h3{color:var(--c)}
.bb-sec .grid{display:grid;grid-template-columns:260px 1fr;gap:36px;align-items:center}
.steps{list-style:none;padding:0;margin:0;display:grid;gap:12px;counter-reset:s}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 16px 16px 58px;position:relative;font-size:.97rem}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:14px;top:14px;width:32px;height:32px;border-radius:50%;background:var(--teal);color:#04201C;font:800 1rem/32px var(--head);text-align:center}
.steps b{display:block;font-family:var(--ui);font-weight:700}
.social{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}
.social a{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 16px;text-decoration:none;color:var(--text)}
.social a:hover{border-color:var(--teal)}
.social .dot{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:#fff;font:800 1rem/1 var(--ui);flex:none}
.social b{display:block;font-family:var(--ui);font-weight:700;font-size:.98rem}
.social small{color:var(--muted)}
.d-yt{background:#E62117}.d-fb{background:#1877F2}.d-ig{background:#C13584}.d-tt,.d-x{background:#111}.d-th{background:#2A2A2A}
.center{text-align:center}.center img{margin:0 auto 10px}
.note{background:var(--card);border:1px solid var(--line);border-left:6px solid var(--coi);border-radius:14px;padding:18px 20px}
.note p:last-child{margin:0}
.alt{background:color-mix(in srgb,var(--teal) 7%,var(--bg))}
.en{border:1px solid var(--line);border-radius:18px;padding:24px;background:var(--card)}
.en h2{font-size:1.6rem}

/* Trang chính sách */
.doc{padding:44px 0 64px}
.doc h1{font-size:clamp(1.9rem,5vw,2.6rem)}
.doc h2{font-size:1.45rem;margin-top:1.8em;scroll-margin-top:16px}
.doc h3{font-size:1.12rem;margin-top:1.4em;font-family:var(--ui);font-weight:700}
.doc .meta{color:var(--muted);font-size:.95rem}
.doc ul,.doc ol{padding-left:1.25em}.doc li{margin:.3em 0}
.doc table{width:100%;border-collapse:collapse;font-size:.95rem;margin:.6em 0 1.2em;display:block;overflow-x:auto}
.doc th,.doc td{border:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
.doc th{background:var(--card);font-family:var(--ui);font-weight:700}
.doc code{font-size:.88em;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:1px 5px;word-break:break-all}
.toc{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px;font-size:.95rem}
.toc ol{margin:.3em 0 0}
.langbox{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 6px}
.pill{font:700 .85rem/1 var(--ui);padding:9px 14px;border-radius:999px;border:1px solid var(--line);text-decoration:none;color:var(--text);background:var(--card)}
.pill.on{background:var(--teal);border-color:var(--teal);color:#04201C}
hr.split{border:0;border-top:2px dashed var(--line);margin:56px 0}

/* Chân trang */
.foot{background:var(--hero);color:var(--hero-muted);padding:36px 0;font-size:.93rem}
.foot .row{display:flex;flex-wrap:wrap;gap:18px 32px;justify-content:space-between;align-items:flex-start}
.foot a{color:var(--hero-text)}
.foot nav{display:flex;flex-wrap:wrap;gap:8px 18px;font-family:var(--ui);font-weight:600}
.foot img{height:38px;width:auto;margin-bottom:10px}

@media (max-width:820px){
  .hero .grid,.bb-sec .grid{grid-template-columns:1fr}
  .bb-sec .grid img{max-width:200px}
  .shot .bb{width:110px;right:-6px;bottom:-28px}
  .nav a:not(.lang):not(.keep){display:none}
  .series .card{display:grid;grid-template-columns:76px 1fr;column-gap:12px;align-items:center;padding:14px 16px}
  .series .card img{width:76px;height:76px;margin:0;grid-row:span 2}
  .series .card h3{margin:0;align-self:end}
  .series .card p{align-self:start}
  section{padding:48px 0}
}
@media (max-width:420px){.brand img{height:38px}body{font-size:16px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}