/* ===================== TOKENS ===================== */
:root{
  --ink:#060d1c;
  --navy-900:#0a1428;
  --navy-800:#0e1d36;
  --navy-700:#13294b;
  --navy-600:#1b3a63;
  --navy-500:#274d7e;
  --gold:#c9a24b;
  --gold-2:#e0bd6f;
  --gold-soft:#efdcae;
  --jade:#3aa392;
  --paper:#f6f2ea;
  --paper-2:#efe8da;
  --cream:#f3eee3;
  --muted:#8aa0bd;
  --line:rgba(201,162,75,.22);
  --shadow:0 24px 60px -24px rgba(4,9,20,.55);
  --r:18px;
  --maxw:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --ff-display:"Playfair Display", Georgia, serif;
  --ff-body:"Be Vietnam Pro", system-ui, sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  font-family:var(--ff-body);
  color:var(--navy-900);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  -webkit-tap-highlight-color:transparent;
}
/* iOS: ngăn co giãn ngang & tôn trọng safe-area (tai thỏ iPhone) */
@supports(padding:max(0px)){
  .topbar__inner,.header__inner,.container{padding-left:max(0px,env(safe-area-inset-left));padding-right:max(0px,env(safe-area-inset-right))}
}
img,svg{max-width:100%}
input,textarea,select,button{font-size:16px} /* tránh iOS tự zoom khi focus */
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(var(--maxw),92%);margin-inline:auto}
.ic{width:1em;height:1em;fill:currentColor;flex:none}

/* ===================== BUTTONS ===================== */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.9rem 1.6rem;border-radius:999px;font-weight:600;font-size:.95rem;
  letter-spacing:.01em;cursor:pointer;border:1px solid transparent;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .35s;
  white-space:nowrap;
}
.btn--gold{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#241a06;box-shadow:0 14px 30px -12px rgba(201,162,75,.7)}
.btn--gold:hover{transform:translateY(-3px);box-shadow:0 22px 40px -14px rgba(201,162,75,.85)}
.btn--ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-3px)}
.btn--dark{background:var(--navy-800);color:#fff}
.btn--dark:hover{background:var(--navy-700);transform:translateY(-3px)}
.btn--block{width:100%;justify-content:center}

/* ===================== EYEBROW / TITLES ===================== */
.eyebrow{display:inline-flex;align-items:center;gap:.7rem;font-size:.78rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);margin-bottom:1.1rem}
.eyebrow__line{width:34px;height:1px;background:var(--gold);opacity:.6}
.eyebrow--center{justify-content:center}
.eyebrow--light{color:var(--gold-2)}
.section-title{font-family:var(--ff-display);font-weight:700;font-size:clamp(1.9rem,4vw,3rem);line-height:1.12;color:var(--navy-900);letter-spacing:-.01em}
.section-title em{font-style:italic;color:var(--gold)}
.section-title--light{color:var(--cream)}
.section-sub{color:#5d6b80;max-width:560px;margin:1rem auto 0;font-size:1.02rem}
.section-head{text-align:center;margin-bottom:3.2rem}

/* ===================== TOPBAR ===================== */
.topbar{background:var(--ink);color:#c4d2e6;font-size:.82rem}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;height:42px;gap:1rem}
.topbar__left{display:flex;gap:1.6rem}
.topbar__item{display:inline-flex;align-items:center;gap:.45rem}
.topbar__item .ic{color:var(--gold);font-size:1rem}
.topbar__right{display:flex;align-items:center;gap:1.2rem}
.topbar__phone{display:inline-flex;align-items:center;gap:.45rem;color:var(--gold-2);font-weight:600}
.topbar__phone .ic{font-size:1rem}
.topbar__lang a{cursor:pointer;opacity:.6}
.topbar__lang a.active{opacity:1;color:#fff}
.topbar__lang span{opacity:.4;margin:0 .25rem}
.topbar__social{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,.08)}
.topbar__social .ic{font-size:.85rem}
@media(max-width:780px){.topbar__left{display:none}}

/* ===================== HEADER ===================== */
.header{position:sticky;top:0;z-index:50;background:rgba(246,242,234,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:box-shadow .3s, background .3s}
.header.scrolled{box-shadow:0 10px 30px -18px rgba(4,9,20,.4)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:1rem}
.brand{display:flex;align-items:center;gap:.7rem}
.brand__mark{display:grid;place-items:center;width:46px;height:46px;border-radius:13px;background:linear-gradient(150deg,var(--navy-700),var(--navy-900));color:var(--gold-2);font-family:var(--ff-display);font-size:1.5rem;box-shadow:inset 0 0 0 1px var(--line)}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__name{font-family:var(--ff-display);font-weight:700;font-size:1.35rem;color:var(--navy-900);letter-spacing:.01em}
.brand__tag{font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);font-weight:600}
.nav{display:flex;gap:.4rem}
.nav a{position:relative;padding:.55rem .85rem;font-weight:500;font-size:.95rem;color:var(--navy-800);border-radius:8px;transition:color .25s}
.nav a::after{content:"";position:absolute;left:.85rem;right:.85rem;bottom:.32rem;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav a:hover{color:var(--gold)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.header__cta{padding:.7rem 1.3rem;font-size:.9rem}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.burger span{width:26px;height:2px;background:var(--navy-900);transition:.3s}
@media(max-width:980px){
  /* tắt backdrop-filter để header không thành containing block cho .nav fixed */
  .header{-webkit-backdrop-filter:none;backdrop-filter:none}
  /* MENU MOBILE = overlay toàn màn hình, nền tối đặc */
  .nav{position:fixed;inset:0;flex-direction:column;justify-content:center;align-items:center;gap:.3rem;background:linear-gradient(165deg,var(--navy-800) 0%,var(--ink) 100%);padding:5rem 1.4rem 2rem;z-index:200;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-6px);transition:opacity .35s var(--ease),transform .35s var(--ease),visibility .35s}
  .nav.open{opacity:1;visibility:visible;pointer-events:auto;transform:none}
  .nav a{color:#eaf1fa;font-size:1.3rem;font-weight:500;padding:.9rem 1rem;width:min(340px,84%);text-align:center;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav a::after{display:none}
  .nav a:active,.nav a:hover{color:var(--gold-2)}
  .header__cta{display:none}
  .burger{display:flex;z-index:210}
  .burger span{background:var(--navy-900);transition:transform .3s,opacity .3s,background .3s}
  .burger.open span{background:#fff}
  .burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  body.nav-lock{overflow:hidden}
}

/* ===================== HERO ===================== */
.hero{position:relative;background:radial-gradient(120% 130% at 80% 0%, var(--navy-700) 0%, var(--navy-900) 45%, var(--ink) 100%);color:#fff;overflow:hidden}
.hero__glow{position:absolute;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(201,162,75,.28),transparent 65%);top:-180px;right:-120px;filter:blur(20px)}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:26px 26px;opacity:.5}
.hero__inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;padding:4.5rem 0 5rem}
.hero__text{max-width:600px}
.hero .eyebrow{color:var(--gold-2)}
.hero .eyebrow__line{background:var(--gold-2)}
.hero__title{font-family:var(--ff-display);font-weight:700;font-size:clamp(2.4rem,5.2vw,4rem);line-height:1.08;letter-spacing:-.015em}
.hero__title em{font-style:italic;color:var(--gold-2)}
.hero__role{margin-top:1rem;font-size:1.15rem;color:#e7eef7;font-weight:500}
.hero__role em{font-style:italic;color:var(--gold-2)}
.hero__lead{margin:1.2rem 0 2.2rem;font-size:1.06rem;color:#c7d4e6;max-width:520px}
.hero__title{margin-bottom:0}
.hero__actions{display:flex;gap:1rem;flex-wrap:wrap}
.hero__stats{display:flex;gap:2.4rem;margin-top:3rem;padding-top:2rem;border-top:1px solid rgba(255,255,255,.12)}
.stat b{display:block;font-family:var(--ff-display);font-size:2rem;color:var(--gold-2);line-height:1}
.stat span{font-size:.82rem;color:var(--muted);letter-spacing:.02em}
/* portrait */
.hero__media{position:relative;justify-self:center}
.hero__portrait{position:relative;width:min(420px,80vw);aspect-ratio:4/5.1;border-radius:240px 240px 22px 22px;overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(201,162,75,.35)}
.hero__portrait::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(10,20,40,.4),transparent 40%)}
.hero__portrait img{width:100%;height:100%;object-fit:cover;object-position:center top}
.hero__badge{position:absolute;left:-26px;bottom:42px;display:flex;align-items:center;gap:.7rem;background:rgba(246,242,234,.97);color:var(--navy-900);padding:.85rem 1.1rem;border-radius:14px;box-shadow:var(--shadow);font-size:.82rem;line-height:1.25}
.hero__badge .ic{font-size:1.8rem;color:var(--gold)}
.hero__badge b{color:var(--navy-900)}
/* marquee */
.hero__marquee{position:relative;border-top:1px solid rgba(255,255,255,.1);background:rgba(0,0,0,.25);overflow:hidden}
.marquee__track{display:flex;align-items:center;gap:1.6rem;white-space:nowrap;padding:.9rem 0;animation:marq 28s linear infinite;width:max-content}
.marquee__track span{font-family:var(--ff-display);font-style:italic;font-size:1.1rem;color:#dfe8f3}
.marquee__track i{color:var(--gold-2);font-style:normal}
@keyframes marq{to{transform:translateX(-50%)}}
@media(max-width:880px){
  .hero__inner{grid-template-columns:1fr;text-align:center;padding-top:3rem}
  .hero__text{max-width:none}
  .hero .eyebrow,.hero__actions,.hero__stats{justify-content:center}
  .hero__lead{margin-inline:auto}
  .hero__media{margin-top:1rem}
}
@media(max-width:480px){.hero__stats{gap:1.4rem}.stat b{font-size:1.6rem}}

/* ===================== ABOUT ===================== */
.about{padding:6rem 0;position:relative}
.about__inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:4rem;align-items:center}
.about__media{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.about__media::before{content:"";position:absolute;inset:14px;border:1px solid rgba(255,255,255,.45);border-radius:12px;z-index:2;pointer-events:none}
.about__media img{width:100%;aspect-ratio:3/3.4;object-fit:cover}
.about__exp{position:absolute;right:18px;bottom:18px;z-index:3;background:linear-gradient(135deg,var(--navy-700),var(--navy-900));color:#fff;border-radius:14px;padding:1rem 1.2rem;display:flex;align-items:center;gap:.6rem;box-shadow:var(--shadow);border:1px solid var(--line)}
.about__exp b{font-family:var(--ff-display);font-size:2.4rem;color:var(--gold-2);line-height:1}
.about__exp span{font-size:.78rem;color:#cdd9ea;line-height:1.2}
.about__text p{color:#4d5a6e;margin-bottom:1rem;max-width:560px}
.about__list{list-style:none;margin:1.6rem 0 2rem;display:grid;gap:.8rem}
.about__list li{display:flex;align-items:flex-start;gap:.7rem;color:var(--navy-800);font-weight:500}
.about__list .ic{color:var(--jade);font-size:1.3rem;margin-top:.1rem}
@media(max-width:880px){.about__inner{grid-template-columns:1fr;gap:2.4rem}.about__media{max-width:440px;margin-inline:auto}}
/* certs */
.certs{margin:1.6rem 0 2rem}
.certs__label{display:block;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:.8rem}
.certs__list{display:flex;flex-wrap:wrap;gap:.6rem}
.chip{display:inline-flex;align-items:center;gap:.4rem;background:#fff;border:1px solid var(--line);color:var(--navy-800);font-size:.86rem;font-weight:500;padding:.5rem .9rem;border-radius:999px;box-shadow:0 8px 20px -16px rgba(10,20,40,.5)}
.chip .ic{color:var(--jade);font-size:1.05rem}

/* ===================== SERVICES ===================== */
.services{padding:6rem 0;background:linear-gradient(180deg,var(--paper),var(--paper-2))}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.card{position:relative;background:#fff;border-radius:var(--r);padding:2rem 1.6rem;border:1px solid rgba(20,40,75,.07);box-shadow:0 18px 40px -28px rgba(10,20,40,.35);transition:transform .4s var(--ease),box-shadow .4s,border-color .4s;overflow:hidden}
.card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:linear-gradient(90deg,var(--gold),var(--gold-2));transition:width .45s var(--ease)}
.card:hover{transform:translateY(-8px);box-shadow:0 30px 55px -28px rgba(10,20,40,.5);border-color:var(--line)}
.card:hover::before{width:100%}
.card__icon{width:62px;height:62px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(150deg,var(--navy-700),var(--navy-900));margin-bottom:1.3rem;box-shadow:inset 0 0 0 1px var(--line)}
.card__icon svg{width:30px;height:30px;fill:var(--gold-2)}
.card h3{font-family:var(--ff-display);font-size:1.35rem;color:var(--navy-900);margin-bottom:.6rem}
.card p{font-size:.92rem;color:#5d6b80;min-height:72px}
.card__more{font-size:.85rem;font-weight:600;color:var(--gold);letter-spacing:.02em}
.cards--6{grid-template-columns:repeat(3,1fr)}
@media(max-width:980px){.cards{grid-template-columns:repeat(2,1fr)}.cards--6{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cards{grid-template-columns:1fr}.cards--6{grid-template-columns:1fr}.card p{min-height:0}}

/* ===================== MISSION / VISION ===================== */
.mv{padding:5rem 0;background:var(--ink);position:relative;overflow:hidden}
.mv::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(201,162,75,.14),transparent 65%);right:-160px;top:-160px}
.mv__inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
.mv__card{background:linear-gradient(160deg,rgba(27,58,99,.5),rgba(10,20,40,.4));border:1px solid var(--line);border-radius:var(--r);padding:2.4rem;color:#dbe5f1;position:relative;overflow:hidden}
.mv__card--alt{background:linear-gradient(160deg,rgba(58,163,146,.18),rgba(10,20,40,.4))}
.mv__num{font-family:var(--ff-display);font-style:italic;font-size:3rem;color:var(--gold);opacity:.4;line-height:1}
.mv__card h3{font-family:var(--ff-display);font-size:1.7rem;color:#fff;margin:.4rem 0 .8rem}
.mv__card p{color:#bccadd;font-size:1rem}
@media(max-width:780px){.mv__inner{grid-template-columns:1fr}}

/* ===================== VALUES ===================== */
.values{padding:6rem 0;background:linear-gradient(180deg,var(--paper),var(--paper-2))}
.values__grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1.2rem}
.value{background:#fff;border:1px solid rgba(20,40,75,.07);border-radius:var(--r);padding:2rem 1.4rem;text-align:center;transition:transform .4s var(--ease),box-shadow .4s}
.value:hover{transform:translateY(-8px);box-shadow:0 26px 50px -30px rgba(10,20,40,.5)}
.value__ic{display:grid;place-items:center;width:60px;height:60px;margin:0 auto 1.1rem;border-radius:50%;background:linear-gradient(150deg,var(--navy-700),var(--navy-900));color:var(--gold-2);font-family:var(--ff-display);font-size:1.7rem;box-shadow:inset 0 0 0 1px var(--line)}
.value h4{font-family:var(--ff-display);font-size:1.15rem;color:var(--navy-900);margin-bottom:.5rem}
.value p{font-size:.86rem;color:#5d6b80}
@media(max-width:980px){.values__grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.values__grid{grid-template-columns:repeat(2,1fr)}}

/* ===================== TRAINING ===================== */
.training{padding:6rem 0;background:radial-gradient(120% 120% at 80% 0%, var(--navy-700), var(--navy-900) 55%, var(--ink));color:#fff}
.training .section-title{color:#fff}
.section-sub--light{color:#bccadd}
.levels{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;align-items:start}
.level{position:relative;background:rgba(255,255,255,.04);border:1px solid rgba(201,162,75,.2);border-radius:var(--r);padding:2.2rem 1.8rem;backdrop-filter:blur(6px);transition:transform .4s var(--ease),box-shadow .4s}
.level--feature{background:linear-gradient(170deg,rgba(201,162,75,.16),rgba(10,20,40,.3));border-color:rgba(201,162,75,.55);transform:translateY(-10px);box-shadow:0 30px 60px -28px rgba(0,0,0,.6)}
.level:hover{transform:translateY(-6px)}
.level--feature:hover{transform:translateY(-14px)}
.level__tag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#241a06;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:.35rem .9rem;border-radius:999px}
.level__no{display:inline-block;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-2);font-weight:600;margin-bottom:.4rem}
.level__head h3{font-family:var(--ff-display);font-size:1.45rem;color:#fff;margin-bottom:1.3rem;line-height:1.2}
.level ul{list-style:none;display:grid;gap:.7rem;margin-bottom:1.8rem}
.level li{position:relative;padding-left:1.6rem;color:#c7d4e6;font-size:.94rem}
.level li::before{content:"";position:absolute;left:0;top:.45rem;width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 3px rgba(201,162,75,.2)}
@media(max-width:880px){.levels{grid-template-columns:1fr;max-width:460px;margin-inline:auto}.level--feature{transform:none}.level--feature:hover{transform:translateY(-6px)}}

/* audience */
.audience{margin-top:3.5rem;text-align:center;border-top:1px solid rgba(255,255,255,.1);padding-top:2.6rem}
.audience__title{font-family:var(--ff-display);font-size:1.3rem;color:var(--gold-2);margin-bottom:1.4rem}
.audience__grid{display:flex;flex-wrap:wrap;justify-content:center;gap:.7rem}
.aud{background:rgba(255,255,255,.06);border:1px solid rgba(201,162,75,.25);color:#dbe5f1;font-size:.92rem;font-weight:500;padding:.6rem 1.2rem;border-radius:999px;transition:.3s}
.aud:hover{background:var(--gold);color:#241a06;border-color:transparent}

/* ===================== MESSAGE BANNER ===================== */
.message{padding:5rem 0;background:var(--paper-2);position:relative}
.message__inner{position:relative;max-width:880px;margin-inline:auto;text-align:center}
.message__quote{font-family:var(--ff-display);font-size:6rem;color:var(--gold);opacity:.35;line-height:.5;display:block;height:2.4rem}
.message__big{font-family:var(--ff-display);font-style:italic;font-size:clamp(1.5rem,3.4vw,2.3rem);color:var(--navy-900);line-height:1.35}
.message__small{margin-top:1.1rem;color:var(--gold);font-weight:600;letter-spacing:.04em}

/* ===================== ACUPUNCTURE ===================== */
.acu{padding:6rem 0;background:var(--ink);color:#fff;position:relative;overflow:hidden}
.acu::before{content:"";position:absolute;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(58,163,146,.18),transparent 65%);left:-150px;bottom:-150px}
.acu__inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.acu .eyebrow{color:var(--gold-2)}.acu .eyebrow__line{background:var(--gold-2)}
.acu .section-title{color:#fff}
.acu__lead{color:#bccadd;margin:1.2rem 0 2rem;max-width:480px}
.acu__groups{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem;margin-bottom:2.2rem}
.acu__group h4{display:flex;align-items:center;gap:.5rem;font-size:1.05rem;color:var(--gold-2);margin-bottom:.8rem;font-family:var(--ff-display)}
.acu__group .dot{width:9px;height:9px;border-radius:50%;background:var(--jade);box-shadow:0 0 0 4px rgba(58,163,146,.2)}
.acu__group ul{list-style:none;display:grid;gap:.5rem}
.acu__group li{position:relative;padding-left:1.2rem;color:#c7d4e6;font-size:.95rem}
.acu__group li::before{content:"✦";position:absolute;left:0;color:var(--gold);font-size:.7rem;top:.25rem}
.acu__media{position:relative;height:480px}
.acu__img{position:absolute;border-radius:var(--r);object-fit:cover;box-shadow:var(--shadow);border:2px solid rgba(201,162,75,.3)}
.acu__img--1{width:68%;height:78%;top:0;right:0;object-position:center}
.acu__img--2{width:54%;height:56%;bottom:0;left:0;z-index:2}
@media(max-width:880px){
  .acu__inner{grid-template-columns:1fr;gap:2.6rem}
  .acu__media{height:360px;max-width:460px;margin-inline:auto;width:100%}
}
@media(max-width:480px){.acu__groups{grid-template-columns:1fr}}

/* ===================== PROCESS ===================== */
.process{padding:6rem 0;background:linear-gradient(180deg,var(--paper-2),var(--paper))}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.step{position:relative;background:#fff;border-radius:var(--r);padding:2.4rem 1.6rem 1.8rem;border:1px solid rgba(20,40,75,.07);text-align:left}
.step__no{font-family:var(--ff-display);font-size:2.6rem;font-style:italic;color:var(--gold);opacity:.55;line-height:1}
.step h4{font-family:var(--ff-display);font-size:1.18rem;color:var(--navy-900);margin:.6rem 0 .5rem}
.step p{font-size:.9rem;color:#5d6b80}
.step:not(:last-child)::after{content:"→";position:absolute;right:-1rem;top:50%;transform:translateY(-50%);color:var(--gold);font-size:1.2rem;z-index:2}
@media(max-width:980px){.steps{grid-template-columns:repeat(2,1fr)}.step:nth-child(2)::after{display:none}}
@media(max-width:520px){.steps{grid-template-columns:1fr}.step::after{display:none!important}}

/* ===================== GALLERY ===================== */
.gallery{padding:6rem 0}
.grid-gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:1rem}
.g-item{position:relative;overflow:hidden;border-radius:14px;cursor:pointer;box-shadow:0 16px 36px -26px rgba(10,20,40,.5)}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.g-item::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(6,13,28,.78),transparent 55%);opacity:.85;transition:opacity .4s}
.g-item span{position:absolute;left:1rem;bottom:.9rem;z-index:2;color:#fff;font-size:.9rem;font-weight:500;transform:translateY(8px);opacity:0;transition:.4s var(--ease)}
.g-item:hover img{transform:scale(1.08)}
.g-item:hover span{transform:translateY(0);opacity:1}
.g-item--tall{grid-row:span 2}
.g-item--wide{grid-column:span 2}
@media(max-width:880px){.grid-gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}.g-item--wide{grid-column:span 2}.g-item--tall{grid-row:span 1}}
@media(max-width:520px){.grid-gallery{grid-template-columns:1fr 1fr;grid-auto-rows:140px}.g-item--wide{grid-column:span 2}}

/* ===================== TESTIMONIALS ===================== */
.testi{padding:6rem 0;background:radial-gradient(120% 120% at 20% 0%, var(--navy-700), var(--navy-900) 50%, var(--ink));color:#fff;position:relative;overflow:hidden}
.testi::before{content:"”";position:absolute;font-family:var(--ff-display);font-size:24rem;color:rgba(201,162,75,.07);top:-4rem;right:2rem;line-height:1}
.testi__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.testi__card{background:rgba(255,255,255,.04);border:1px solid rgba(201,162,75,.2);border-radius:var(--r);padding:2rem;backdrop-filter:blur(6px)}
.stars{color:var(--gold-2);letter-spacing:.15em;margin-bottom:1rem}
.testi__card p{color:#dbe5f1;font-size:1rem;font-style:italic;font-family:var(--ff-display);line-height:1.55}
.testi__card footer{display:flex;align-items:center;gap:.8rem;margin-top:1.4rem;padding-top:1.2rem;border-top:1px solid rgba(255,255,255,.1)}
.av{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#241a06;font-weight:700;font-family:var(--ff-display)}
.testi__card b{display:block;font-size:.95rem}
.testi__card small{color:var(--muted);font-size:.8rem}
@media(max-width:880px){.testi__grid{grid-template-columns:1fr}}

/* ===================== BLOG ===================== */
.blog{padding:6rem 0;background:linear-gradient(180deg,var(--paper),var(--paper-2))}
.blog__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.post{background:#fff;border-radius:var(--r);overflow:hidden;border:1px solid rgba(20,40,75,.07);box-shadow:0 18px 40px -30px rgba(10,20,40,.4);transition:transform .4s var(--ease),box-shadow .4s}
.post:hover{transform:translateY(-8px);box-shadow:0 30px 55px -30px rgba(10,20,40,.55)}
.post__img{height:185px;background-size:cover;background-position:center;position:relative}
.post__img::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(6,13,28,.35),transparent 60%)}
.post__cat{position:absolute;left:.9rem;top:.9rem;z-index:2;background:var(--gold);color:#241a06;font-size:.72rem;font-weight:600;padding:.28rem .7rem;border-radius:999px;letter-spacing:.03em}
.post__body{padding:1.3rem 1.3rem 1.6rem}
.post__date{font-size:.74rem;letter-spacing:.12em;color:var(--gold);font-weight:600;text-transform:uppercase}
.post h3{font-family:var(--ff-display);font-size:1.15rem;color:var(--navy-900);margin:.5rem 0 .9rem;line-height:1.3}
.post a{font-size:.85rem;font-weight:600;color:var(--navy-700)}
.post a:hover{color:var(--gold)}
@media(max-width:980px){.blog__grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.blog__grid{grid-template-columns:1fr}}

/* ===================== CONTACT ===================== */
.contact{padding:6rem 0 0;background:radial-gradient(120% 120% at 80% 0%, var(--navy-700), var(--navy-900) 55%, var(--ink));color:#fff}
.contact__inner{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:start;padding-bottom:5rem}
.contact .eyebrow{color:var(--gold-2)}.contact .eyebrow__line{background:var(--gold-2)}
.contact__lead{color:#bccadd;margin:1.1rem 0 2rem;max-width:440px}
.contact__list{list-style:none;display:grid;gap:1.1rem}
.contact__list li{display:flex;align-items:center;gap:1rem}
.ci{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;background:rgba(201,162,75,.12);border:1px solid var(--line);flex:none}
.ci .ic{font-size:1.3rem;color:var(--gold-2);fill:none;stroke:var(--gold-2);stroke-width:1.6}
.ci svg path{fill:var(--gold-2)}
.contact__list small{display:block;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.contact__list a{font-weight:600;color:#e7eef7}
/* form */
.contact__form{background:rgba(246,242,234,.98);color:var(--navy-900);border-radius:22px;padding:2.4rem;box-shadow:var(--shadow);border:1px solid var(--line)}
.contact__form h3{font-family:var(--ff-display);font-size:1.5rem;margin-bottom:1.4rem;color:var(--navy-900)}
.field{margin-bottom:1rem}
.field input,.field textarea,.field select{width:100%;padding:.95rem 1.1rem;border:1px solid rgba(20,40,75,.16);border-radius:12px;font-family:inherit;font-size:.95rem;color:var(--navy-900);background:#fff;transition:border-color .25s,box-shadow .25s}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23c9a24b'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .9rem center;background-size:1.3rem;cursor:pointer}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 4px rgba(201,162,75,.16)}
.field textarea{resize:vertical}
.form__note{margin-top:1rem;color:var(--jade);font-weight:600;text-align:center}
.contact__map{height:380px}
.contact__map iframe{width:100%;height:100%;border:0;filter:grayscale(.25) contrast(1.05)}
@media(max-width:880px){.contact__inner{grid-template-columns:1fr;gap:2.4rem}}

/* ===================== FOOTER ===================== */
.footer{background:var(--ink);color:#aebfd4;padding-top:4rem}
.footer__inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:2.4rem;padding-bottom:3rem}
.brand--light .brand__name{color:#fff}
.footer__brand p{margin:1.2rem 0;font-size:.92rem;max-width:300px;color:#8aa0bd}
.footer__social{display:flex;gap:.6rem}
.footer__social a{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:rgba(255,255,255,.06);color:var(--gold-2);transition:.3s;font-weight:700}
.footer__social a:hover{background:var(--gold);color:#241a06;transform:translateY(-3px)}
.footer__col h4{color:#fff;font-family:var(--ff-display);font-size:1.1rem;margin-bottom:1.1rem}
.footer__col a,.footer__col p{display:block;font-size:.9rem;color:#8aa0bd;margin-bottom:.6rem;transition:color .25s}
.footer__col a:hover{color:var(--gold-2)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding:1.4rem 0;font-size:.82rem;color:#6f829c;text-align:center}
@media(max-width:880px){.footer__inner{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer__inner{grid-template-columns:1fr}}

/* ===================== CONTACT FAB (gộp 1 nút) ===================== */
.cfab{position:fixed;right:20px;bottom:20px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:.75rem}
.cfab__menu{display:flex;flex-direction:column;align-items:flex-end;gap:.7rem;margin-bottom:.2rem}
.cfab__item{display:flex;align-items:center;gap:.6rem;text-decoration:none;opacity:0;visibility:hidden;transform:translateY(14px) scale(.85);transform-origin:bottom right;transition:transform .35s var(--ease),opacity .3s,visibility .3s}
.cfab.open .cfab__item{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.cfab.open .cfab__item:nth-child(1){transition-delay:.04s}
.cfab.open .cfab__item:nth-child(2){transition-delay:.10s}
.cfab.open .cfab__item:nth-child(3){transition-delay:.16s}
.cfab.open .cfab__item:nth-child(4){transition-delay:.22s}
.cfab__label{background:#fff;color:var(--navy-900);font-size:.82rem;font-weight:600;padding:.45rem .8rem;border-radius:999px;box-shadow:0 8px 22px -10px rgba(0,0,0,.5);white-space:nowrap}
.cfab__ic{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 10px 24px -8px rgba(0,0,0,.5);flex:none}
.cfab__ic .ic{font-size:1.4rem}
.cfab__ic b{font-size:.74rem;font-weight:700;letter-spacing:.02em}
.cfab__item--call .cfab__ic{background:linear-gradient(135deg,#1f9e4c,#0f7a37)}
.cfab__item--zalo .cfab__ic{background:linear-gradient(135deg,#2a8bf2,#1466c7)}
.cfab__item--fb .cfab__ic{background:linear-gradient(135deg,#1877f2,#0d5fc4)}
.cfab__item:hover .cfab__label{color:var(--gold)}
.cfab__item:hover .cfab__ic{transform:scale(1.08)}
/* toggle */
.cfab__toggle{position:relative;width:60px;height:60px;border-radius:50%;border:0;cursor:pointer;background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#241a06;display:grid;place-items:center;box-shadow:0 14px 30px -10px rgba(201,162,75,.8);transition:transform .35s var(--ease)}
.cfab__toggle:hover{transform:scale(1.06)}
.cfab__toggle-ic{position:absolute;width:26px;height:26px;fill:#241a06;transition:transform .4s var(--ease),opacity .3s}
.cfab__toggle-ic--close{opacity:0;transform:rotate(-90deg) scale(.5)}
.cfab.open .cfab__toggle-ic--phone{opacity:0;transform:rotate(90deg) scale(.5)}
.cfab.open .cfab__toggle-ic--close{opacity:1;transform:rotate(0) scale(1)}
.cfab__pulse{position:absolute;right:0;bottom:0;width:60px;height:60px;border-radius:50%;background:var(--gold);z-index:-1;animation:cfabPulse 2.4s infinite}
.cfab.open .cfab__pulse{display:none}
@keyframes cfabPulse{0%{transform:scale(1);opacity:.5}70%,100%{transform:scale(1.7);opacity:0}}
/* to-top (đặt bên trái để không đè nút liên hệ) */
.totop{position:fixed;left:20px;bottom:20px;z-index:80;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;background:var(--navy-800);color:var(--gold-2);font-size:1.3rem;box-shadow:var(--shadow);opacity:0;transform:translateY(20px);transition:.4s var(--ease)}
.totop.show{opacity:1;transform:translateY(0)}
.totop:hover{background:var(--gold);color:#241a06}
@media(prefers-reduced-motion:reduce){.cfab__pulse{animation:none}}

/* ===================== LIGHTBOX ===================== */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(6,13,28,.92);display:none;place-items:center;padding:4vw;backdrop-filter:blur(4px)}
.lightbox.open{display:grid}
.lightbox img{max-width:90vw;max-height:88vh;border-radius:12px;box-shadow:var(--shadow)}
.lightbox__close{position:absolute;top:1.4rem;right:1.8rem;color:#fff;font-size:2.4rem;cursor:pointer;line-height:1}

/* ===================== REVEAL ===================== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.marquee__track,.cfab__pulse{animation:none}}

/* ===================== TỐI ƯU ĐIỆN THOẠI (Android · iPhone) ===================== */
@media(max-width:768px){
  .container{width:90%}
  /* giảm padding dọc các section cho gọn trên mobile */
  .about,.services,.values,.gallery,.testi,.blog{padding:3.6rem 0}
  .mv{padding:3.2rem 0}
  .training{padding:3.6rem 0}
  .message{padding:3.4rem 0}
  .contact{padding:3.6rem 0 0}
  .section-head{margin-bottom:2.2rem}
}
@media(max-width:600px){
  /* TOPBAR: chỉ giữ SĐT cho gọn */
  .topbar{font-size:.78rem}
  .topbar__inner{height:auto;padding:.4rem 0;justify-content:center}
  .topbar__right{gap:.8rem}
  .topbar__lang,.topbar__social{display:none}

  /* HERO */
  .hero__inner{padding:2.4rem 0 3rem;gap:2rem}
  .hero__title{font-size:clamp(2rem,8.5vw,2.6rem)}
  .hero__role{font-size:1rem}
  .hero__lead{font-size:.98rem;margin:1rem auto 1.6rem}
  .hero__actions{flex-direction:column;width:100%}
  .hero__actions .btn{width:100%;justify-content:center}
  .hero__portrait{width:min(300px,76vw)}
  .hero__badge{left:50%;transform:translateX(-50%);bottom:-18px;font-size:.78rem;padding:.7rem 1rem}
  .hero__stats{gap:0;justify-content:space-between;width:100%;margin-top:2.2rem}
  .stat{flex:1;text-align:center}
  .stat b{font-size:1.5rem}
  .stat span{font-size:.72rem}
  .marquee__track span{font-size:.95rem}

  /* TIÊU ĐỀ */
  .section-title{font-size:clamp(1.6rem,6.5vw,2rem)}
  .section-sub{font-size:.95rem}

  /* CARDS / VALUES / LEVELS / MV — 1 cột, padding gọn */
  .card{padding:1.6rem 1.3rem}
  .mv__card{padding:1.8rem 1.4rem}
  .mv__card h3{font-size:1.45rem}
  .value{padding:1.6rem 1rem}
  .level{padding:1.8rem 1.4rem}
  .level--feature{transform:none}
  .audience{margin-top:2.4rem;padding-top:2rem}
  .aud{font-size:.86rem;padding:.5rem 1rem}

  /* ABOUT */
  .about__inner{gap:2rem}
  .about__exp{right:12px;bottom:12px;padding:.7rem .9rem}
  .about__exp b{font-size:1.8rem}

  /* GALLERY: lưới gọn, tự cuộn mượt */
  .grid-gallery{grid-template-columns:1fr 1fr;grid-auto-rows:128px;gap:.6rem}
  .g-item--wide{grid-column:span 2}
  .g-item--tall{grid-row:span 1}
  .g-item span{font-size:.78rem;opacity:1;transform:none} /* nhãn luôn hiện vì mobile không hover */

  /* CONTACT */
  .contact__form{padding:1.6rem}
  .contact__form h3{font-size:1.3rem}
  .field input,.field textarea,.field select{font-size:16px} /* chặn iOS auto-zoom */
  .contact__map{height:300px}

  /* FOOTER */
  .footer__inner{gap:1.8rem}
  .footer{padding-top:3rem}

  /* NÚT LIÊN HỆ NỔI: vừa tay, nhãn không tràn, né thanh điều hướng iPhone */
  .cfab{right:14px;bottom:calc(14px + env(safe-area-inset-bottom,0px))}
  .cfab__toggle{width:54px;height:54px}
  .cfab__pulse{width:54px;height:54px}
  .cfab__ic{width:44px;height:44px}
  .cfab__label{font-size:.8rem;max-width:52vw;overflow:hidden;text-overflow:ellipsis}
  .totop{left:14px;bottom:calc(14px + env(safe-area-inset-bottom,0px));width:42px;height:42px}

  /* LIGHTBOX nút đóng to hơn cho dễ chạm */
  .lightbox__close{top:1rem;right:1.2rem;font-size:2.8rem}
}
@media(max-width:380px){
  .hero__title{font-size:1.8rem}
  .stat b{font-size:1.3rem}
  .brand__tag{font-size:.6rem}
}
/* Màn hình ngang thấp (điện thoại xoay ngang) */
@media(max-height:520px) and (orientation:landscape){
  .hero__inner{padding:2rem 0}
  .nav{padding-top:4rem;overflow-y:auto}
}