/* ============================================================
   ĐỘI NGŨ THẠO AI — Tim Business OS
   Màu thương hiệu: đổi tại :root
   ============================================================ */
:root{
  --navy:#0e1b33;
  --navy-2:#13254a;
  --navy-3:#1b3260;
  --gold:#c9a24b;
  --gold-2:#e2c27a;
  --gold-dark:#9c7a2c;
  --ivory:#f8f6f1;
  --sand:#efe9df;
  --line:#e3ddd1;
  --ink:#14213d;
  --muted:#6b7280;
  --white:#fff;
  --radius:18px;
  --shadow:0 18px 50px -20px rgba(14,27,51,.35);
  --serif:"Playfair Display",Georgia,"Times New Roman",serif;
  --sans:"Be Vietnam Pro","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--sans);font-variant-numeric:lining-nums;color:var(--ink);background:var(--white);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
.container{width:min(1180px,100% - 32px);margin-inline:auto}
.container.narrow{width:min(900px,100% - 32px)}
.section{padding:clamp(64px,9vw,112px) 0;position:relative}
.center{text-align:center}
.gold{color:var(--gold)}
.muted{color:var(--muted)}
b,strong{font-weight:700}

/* ---------- Typography ---------- */
.kicker{display:block;font-size:12px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:14px}
.kicker.light{color:var(--gold)}
.title{font-family:var(--serif);font-weight:700;font-size:clamp(30px,4.4vw,50px);line-height:1.15;color:var(--navy);text-transform:uppercase;letter-spacing:.01em;margin-bottom:18px}
.title.light{color:var(--white)}
.subtitle{color:var(--muted);max-width:640px;margin:0 auto 40px;font-size:17px}
.quote{font-style:italic;font-size:clamp(18px,2vw,22px);color:var(--gold-dark);margin-top:26px}
.quote.light{color:var(--gold-2)}
.fineprint{font-size:13px;color:var(--muted);margin-top:22px}
.fine{font-size:13px}
.light{color:rgba(255,255,255,.82)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;justify-content:center;font-family:var(--sans);font-weight:700;font-size:14px;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;border-radius:999px;padding:14px 28px;border:0;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:linear-gradient(120deg,var(--gold-dark),var(--gold) 55%,var(--gold-2));color:var(--navy);box-shadow:0 12px 30px -10px rgba(201,162,75,.7)}
.btn-gold:hover{box-shadow:0 16px 36px -10px rgba(201,162,75,.9)}
.btn-outline{background:transparent;color:var(--navy);border:1.5px solid var(--gold)}
.btn-outline:hover{background:rgba(201,162,75,.12)}
.btn-outline-dark{background:transparent;color:var(--navy);border:1.5px solid var(--navy)}
.btn-sm{padding:10px 20px;font-size:13px}
.btn-lg{padding:17px 34px;font-size:15px}

/* ---------- Header ---------- */
.site-header{position:fixed;inset:0 0 auto;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(14,27,51,.06);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 8px 30px -18px rgba(14,27,51,.4)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.logo{font-family:var(--serif);font-weight:800;letter-spacing:.14em;font-size:19px;color:var(--navy);text-decoration:none;white-space:nowrap}
.logo span{color:var(--gold-dark)}
.nav{display:flex;gap:34px}
.nav a{text-decoration:none;font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--navy);position:relative;padding:4px 0}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--gold);transition:width .25s}
.nav a:hover::after,.nav a.active::after{width:100%}
.nav a.active{color:var(--gold-dark)}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;align-items:center}
.burger span{display:block;width:24px;height:2px;background:var(--navy);transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:120px 0 80px;background:var(--navy);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:65% center;transform:scale(1.04);animation:heroZoom 18s ease-out forwards}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,27,51,.97) 0%,rgba(14,27,51,.88) 38%,rgba(14,27,51,.35) 70%,rgba(14,27,51,.55) 100%),linear-gradient(0deg,rgba(14,27,51,.85),transparent 40%)}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-ring{position:absolute;width:640px;height:640px;border:1.5px solid rgba(201,162,75,.45);border-radius:50%;right:-120px;top:50%;transform:translateY(-50%);pointer-events:none}
.hero-ring::after{content:"";position:absolute;inset:40px;border:1px solid rgba(201,162,75,.18);border-radius:50%}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .85fr;gap:48px;align-items:center}
.eyebrow{display:flex;align-items:center;gap:14px;font-size:12px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin-bottom:22px}
.eyebrow.light{color:var(--gold)}
.eyebrow .line{width:40px;height:1.5px;background:var(--gold)}
.hero h1{font-family:var(--serif);font-weight:800;font-size:clamp(52px,8.5vw,108px);line-height:1;letter-spacing:-.01em;margin-bottom:26px;text-transform:uppercase}
.hero h1 em,.final-cta h2 em{font-style:normal;color:var(--gold)}
.hero-lead{font-size:clamp(19px,2.2vw,24px);font-weight:500;color:#fff;margin-bottom:14px}
.hero-desc{color:rgba(255,255,255,.72);max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px 24px}
.hero-meta{font-size:14px;color:rgba(255,255,255,.8)}
.hero-meta strong{color:var(--gold-2)}
.trainer-card{position:relative;border-radius:22px;overflow:hidden;box-shadow:0 40px 80px -30px rgba(0,0,0,.7);border:1px solid rgba(201,162,75,.4);max-width:440px;justify-self:end}
.trainer-card img{width:100%;aspect-ratio:4/4.4;object-fit:cover;object-position:62% center}
.trainer-tag{position:absolute;left:16px;right:16px;bottom:16px;background:rgba(255,255,255,.96);color:var(--navy);border-radius:14px;padding:16px 18px;display:flex;flex-direction:column;gap:2px}
.tag-label{font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--gold-dark)}
.trainer-tag strong{font-family:var(--serif);font-size:24px;letter-spacing:.04em;text-transform:uppercase}
.trainer-tag span:last-child{font-size:13px;color:var(--muted);line-height:1.45}

/* ---------- Stats ---------- */
.stats{background:var(--ivory)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden;transition:transform .3s,box-shadow .3s}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.stat::after{content:"";position:absolute;right:-40px;bottom:-40px;width:110px;height:110px;border-radius:50%;background:radial-gradient(circle,rgba(201,162,75,.22),transparent 70%)}
.stat-num{font-family:var(--serif);font-weight:800;font-size:clamp(42px,4.6vw,58px);line-height:1;color:var(--gold-dark)}
.stat p{font-size:15px}
.stat-src{font-size:12px;color:var(--muted);margin-top:auto}
.stat em{font-size:13px;color:var(--gold-dark)}

/* ---------- Before / After ---------- */
.ba-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:center}
.ba-table{margin-top:34px}
.ba-row{display:grid;grid-template-columns:1.1fr 1fr 1.1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);align-items:center}
.ba-row strong{font-size:clamp(17px,1.8vw,21px);color:var(--navy)}
.ba-head{font-size:12px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);padding-bottom:10px}
.after{font-weight:700;color:var(--navy);position:relative;padding-left:28px}
.after::before{content:"→";position:absolute;left:0;color:var(--gold-dark);font-weight:700}
.value-card{background:var(--navy);color:#fff;border-radius:24px;padding:40px 34px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.value-card::before{content:"";position:absolute;width:320px;height:320px;border:1.5px solid rgba(201,162,75,.4);border-radius:50%;right:-140px;top:-140px}
.value-card h3{font-family:var(--serif);font-size:26px;line-height:1.25;margin-bottom:22px}
.value-list{list-style:none;counter-reset:v;display:grid;gap:18px;margin-bottom:22px}
.value-list li{counter-increment:v;padding-left:46px;position:relative;color:rgba(255,255,255,.75);font-size:15px}
.value-list li::before{content:"0" counter(v);position:absolute;left:0;top:0;font-family:var(--serif);font-weight:800;color:var(--gold);font-size:22px;line-height:1.1}
.value-list b{display:block;color:#fff;font-size:17px}

/* ---------- Tracks ---------- */
.tracks{background:linear-gradient(180deg,#fff,var(--ivory))}
.track-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.track{background:var(--sand);border-radius:22px;padding:40px 36px;position:relative;overflow:hidden;display:flex;flex-direction:column;gap:10px;transition:transform .3s,box-shadow .3s}
.track:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.track .num{font-family:var(--serif);font-weight:800;color:var(--gold-dark);font-size:20px}
.track h3{font-family:var(--serif);font-size:clamp(24px,2.6vw,30px);color:var(--navy);line-height:1.2}
.track-tag{font-style:italic;color:var(--gold-dark);font-size:17px;margin-bottom:8px}
.track b{color:var(--navy);margin-right:6px}
.track-dark{background-color:var(--navy);background-size:cover;background-position:right center;color:#fff}
.track-dark::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,27,51,.97) 45%,rgba(14,27,51,.7))}
.track-dark>*{position:relative}
.track-dark h3,.track-dark b{color:#fff}
.track-dark .num,.track-dark .track-tag{color:var(--gold)}
.track-dark p{color:rgba(255,255,255,.8)}

/* ---------- Program / timeline ---------- */
.time-pill{display:flex;align-items:center;gap:18px;margin:0 auto 56px;width:fit-content;max-width:100%;background:linear-gradient(120deg,var(--navy),var(--navy-3));color:#fff;padding:22px 34px;border-radius:20px;box-shadow:0 24px 50px -20px rgba(14,27,51,.6);border:1px solid rgba(201,162,75,.35)}
.time-pill svg{color:var(--gold);flex-shrink:0}
.time-pill div{display:flex;flex-direction:column}
.tp-label{font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--gold)}
.time-pill strong{font-size:clamp(17px,2.4vw,24px);font-weight:700}
.tp-sub{font-size:13px;color:rgba(255,255,255,.7)}
.timeline{list-style:none;position:relative;padding-left:58px;display:grid;gap:22px}
.timeline::before{content:"";position:absolute;left:18px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--gold),rgba(201,162,75,.2))}
.timeline li{position:relative}
.timeline li::before{content:"";position:absolute;left:-49px;top:26px;width:18px;height:18px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 6px rgba(201,162,75,.2)}
.tl-card{background:var(--ivory);border:1px solid var(--line);border-radius:16px;padding:24px 28px;transition:border-color .3s,box-shadow .3s}
.tl-card:hover{border-color:var(--gold);box-shadow:var(--shadow)}
.tl-card h3{font-size:18px;color:var(--navy);text-transform:uppercase;letter-spacing:.02em;margin-bottom:8px;line-height:1.35}
.tl-card h3 span{color:var(--gold-dark);font-size:14px;margin-right:4px}
.tl-card p{color:#4b5563;font-size:15px}

/* ---------- Dark bg sections ---------- */
.dark{background-color:var(--navy);background-size:cover;background-position:center;color:#fff}
.dark::before,.final-cta::before,.eval::before,.ex-before::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,27,51,.8),rgba(14,27,51,.9))}
.dark>.container,.final-cta>.container{position:relative;z-index:1}
.dept-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.dept{background:rgba(19,37,74,.75);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:28px 26px;transition:border-color .3s,transform .3s}
.dept:hover{border-color:rgba(201,162,75,.6);transform:translateY(-4px)}
.dept::before{content:"";display:block;width:46px;height:2px;background:var(--gold);margin-bottom:18px}
.dept-role{font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.dept h3{font-size:22px;margin:8px 0 6px}
.dept p{color:rgba(255,255,255,.75);font-size:15px}

/* ---------- Example ---------- */
.ex-wrap{display:grid;grid-template-columns:1fr 1fr;border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.ex-before{position:relative;background-color:var(--navy);background-size:cover;background-position:center;color:#fff;padding:52px 44px}
.ex-before::before{background:linear-gradient(180deg,rgba(14,27,51,.62),rgba(14,27,51,.88))}
.ex-before>*{position:relative}
.ex-before h3,.ex-after h3{font-family:var(--serif);font-size:clamp(44px,5vw,64px);line-height:1;margin:8px 0 26px}
.ex-before blockquote{font-size:clamp(18px,2vw,22px);line-height:1.6;color:rgba(255,255,255,.92)}
.ex-after{background:var(--ivory);padding:52px 44px}
.ex-after h3{color:var(--navy)}
.ex-table{width:100%;border-collapse:collapse;font-size:16px;background:#fff}
.ex-table th{background:var(--sand);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-dark);text-align:left;padding:12px 14px}
.ex-table td{border:1px solid var(--line);padding:14px}
.ex-after .quote{color:var(--navy);margin-top:20px}
.ex-after .muted{font-size:15px;margin-top:8px}

/* ---------- Outcomes ---------- */
.outcomes{background:var(--ivory)}
.out-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:40px 0}
.out-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.out-col h3{font-size:12px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:16px}
.check{list-style:none;display:grid;gap:12px}
.check li{padding-left:32px;position:relative;font-size:16px}
.check li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:var(--gold) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230e1b33' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
.eval{position:relative;border-radius:24px;overflow:hidden;background-color:var(--navy);background-size:cover;background-position:center;color:#fff;padding:52px 44px}
.eval::before{background:linear-gradient(90deg,rgba(14,27,51,.95) 30%,rgba(14,27,51,.55))}
.eval>*{position:relative}
.eval h3{font-family:var(--serif);font-size:clamp(28px,3.4vw,40px);margin-bottom:34px}
.eval-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.eval .big{display:block;font-family:var(--serif);font-weight:800;font-size:46px;color:var(--gold);line-height:1;margin-bottom:10px}
.eval b{font-size:19px;display:block;margin-bottom:4px}
.eval p{color:rgba(255,255,255,.75);font-size:15px}
.eval em{display:block;font-style:normal;color:var(--gold-2);font-size:14px;margin-top:10px}

/* ---------- Trainer ---------- */
.trainer-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center}
.trainer-photo img{border-radius:22px;border:1px solid rgba(201,162,75,.5);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}
.trainer-photo figcaption{font-size:13px;color:var(--muted);margin-top:10px}
.trainer-info .title{font-size:clamp(40px,5vw,58px);color:var(--gold-dark)}
.cred{list-style:none;display:grid;gap:6px;margin-bottom:18px;font-size:18px;font-weight:600;color:var(--navy)}
.cred li{padding-left:22px;position:relative}
.cred li::before{content:"";position:absolute;left:0;top:12px;width:10px;height:2px;background:var(--gold)}
.learn-more{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.lm-card{display:flex;flex-direction:column;text-decoration:none;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;transition:box-shadow .3s,transform .3s}
.lm-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.lm-card img{aspect-ratio:16/9;object-fit:cover;object-position:top}
.lm-card div{padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.lm-card b{color:var(--gold-dark)}
.lm-card span{font-size:13px;color:var(--muted);line-height:1.5}

/* ---------- Pricing ---------- */
.pricing{padding-top:0}
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.price-card{position:relative;overflow:hidden;background:linear-gradient(140deg,#fff,var(--ivory));border:1px solid var(--line);border-radius:22px;padding:36px;display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.price-card::after{content:"";position:absolute;right:-50px;bottom:-50px;width:150px;height:150px;border-radius:50%;background:rgba(201,162,75,.18)}
.pc-icon{color:var(--gold-dark)}
.price{display:flex;flex-direction:column}
.price s{color:var(--muted);font-size:18px}
.price strong{font-family:var(--serif);font-size:clamp(40px,5vw,60px);color:var(--navy);line-height:1.1}
.price-card .btn{margin-top:10px;position:relative;z-index:1}
.countdown{width:100%}
.cd-label{font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-dark)}
.cd-boxes{display:flex;gap:10px;margin-top:8px}
.cd-boxes div{background:var(--navy);color:rgba(255,255,255,.7);border-radius:12px;padding:10px 12px;min-width:66px;text-align:center;font-size:11px;text-transform:uppercase;letter-spacing:.1em}
.cd-boxes b{display:block;font-family:var(--serif);font-size:26px;color:var(--gold);letter-spacing:0}

/* ---------- Register ---------- */
.register{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-3) 60%,#24407a 100%);overflow:hidden}
.register::before{content:"";position:absolute;width:700px;height:700px;border:1.5px solid rgba(201,162,75,.25);border-radius:50%;left:-300px;top:-200px}
.register>.container{position:relative}
.register .title{margin-bottom:40px}
.step-card{background:#fff;border-radius:24px;padding:36px;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;margin-bottom:24px;box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.step-card h3{font-size:clamp(19px,2.2vw,24px);color:var(--navy);text-transform:uppercase;display:flex;align-items:center;gap:14px;margin-bottom:20px}
.step-no{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;background:rgba(201,162,75,.16);color:var(--gold-dark);font-size:14px;flex-shrink:0}
.bank{list-style:none;display:grid;gap:10px;margin-bottom:18px}
.bank li{font-size:15px;display:flex;flex-wrap:wrap;gap:6px;align-items:baseline}
.bank li span{color:var(--muted)}
.bank .acct{font-size:22px;letter-spacing:.04em;color:var(--navy)}
.example-ck{background:var(--ivory);border-radius:10px;padding:12px 16px;font-size:14px;margin-bottom:18px;color:var(--muted)}
.example-ck b{color:var(--navy)}
.step-main p{color:#4b5563;margin-bottom:18px}
.step-main .fineprint{margin-top:14px;margin-bottom:0}
.qr-box{display:flex;flex-direction:column;align-items:center;gap:10px}
.qr{width:210px;height:210px;border-radius:16px;border:1px solid var(--line);display:grid;place-items:center;background:#fff;padding:10px;overflow:hidden}
.qr img,.qr svg{width:100%;height:100%;object-fit:contain}
.qr-empty{font-size:13px;color:var(--muted);text-align:center;line-height:1.5;padding:12px}
.qr-cap{font-size:12px;color:var(--muted)}
.b2b{margin-top:40px;background:var(--ivory);border-radius:24px;padding:34px 36px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;border:1px solid rgba(201,162,75,.5)}
.b2b h3{font-family:var(--serif);font-size:26px;color:var(--navy);margin-bottom:8px}
.b2b p{color:#4b5563}
.b2b-actions{display:flex;flex-direction:column;gap:12px}
.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}

/* ---------- FAQ ---------- */
.faq .title{margin-bottom:36px}
details{border-bottom:1px solid var(--line);padding:20px 4px}
summary{cursor:pointer;font-weight:700;font-size:17px;color:var(--navy);list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:24px;color:var(--gold-dark);line-height:1;transition:transform .3s}
details[open] summary::after{transform:rotate(45deg)}
details p{color:#4b5563;margin-top:12px}

/* ---------- Final CTA ---------- */
.final-cta{position:relative;padding:clamp(90px,12vw,150px) 0;background-color:var(--navy);background-size:cover;background-position:center;color:#fff;overflow:hidden}
.final-cta::before{background:linear-gradient(90deg,rgba(14,27,51,.95) 25%,rgba(14,27,51,.35))}
.final-cta h2{font-family:var(--serif);font-size:clamp(36px,5.4vw,68px);line-height:1.12;margin-bottom:18px;text-transform:uppercase}
.final-cta p{color:rgba(255,255,255,.8);margin-bottom:32px;font-size:18px}
.hero-ring.small{width:460px;height:460px;right:6%;z-index:1}

/* ---------- Footer ---------- */
.site-footer{background:#091327;color:rgba(255,255,255,.6);padding:28px 0;font-size:14px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.site-footer .logo{color:#fff;font-size:16px}
.site-footer .logo span{color:var(--gold)}
.site-footer a{color:var(--gold-2);text-decoration:none}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,30px);background:var(--navy);color:#fff;padding:12px 22px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;transition:.3s;z-index:99;border:1px solid var(--gold)}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- Reveal animation (chỉ khi có JS) ---------- */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}.hero-bg{animation:none}}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .dept-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav{position:fixed;top:70px;left:0;right:0;flex-direction:column;gap:0;background:#fff;padding:8px 16px 18px;box-shadow:0 20px 30px -20px rgba(0,0,0,.3);transform:translateY(-120%);transition:transform .35s;z-index:-1}
  .nav.open{transform:none}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--line)}
  .burger{display:flex}
  .header-cta{display:none}
  .hero{min-height:auto;padding:110px 0 70px}
  .hero-inner,.ba-wrap,.trainer-wrap,.ex-wrap,.track-grid,.out-grid,.price-grid{grid-template-columns:1fr}
  .trainer-card{justify-self:start;max-width:380px}
  .hero-ring{width:420px;height:420px;right:-200px;top:30%}
  .eval-grid{grid-template-columns:1fr}
  .step-card,.b2b{grid-template-columns:1fr}
  .qr-box{justify-self:center}
}
@media (max-width:600px){
  .stat-grid,.dept-grid,.learn-more{grid-template-columns:1fr}
  .ba-row{grid-template-columns:1fr 1fr;row-gap:4px}
  .ba-row strong{grid-column:1/-1}
  .ba-head span:first-child{display:none}
  .timeline{padding-left:40px}
  .timeline::before{left:10px}
  .timeline li::before{left:-38px;width:16px;height:16px}
  .tl-card,.step-card,.b2b,.track,.value-card{padding:26px 22px}
  .ex-before,.ex-after,.eval{padding:36px 22px}
  .time-pill{padding:18px 20px}
  .logo{font-size:16px;letter-spacing:.1em}
  .btn-lg{padding:15px 26px}
  .cd-boxes div{min-width:0;flex:1}
}

.title,.stat-num,.track .num,.value-list li::before,.eval .big,.price strong,.cd-boxes b{font-variant-numeric:lining-nums}