/* ============================================================
   HỌC VIỆN ĐÀO TẠO ĐẸP SPA — Beauty & Academy
   Design System: Gold luxury + Warm CTA + Ivory
   ============================================================ */
@import url("effects.css");

:root{
  /* Brand gold (từ logo #F0B000 & bảng giá đào tạo) */
  --gold:#C99A3B;
  --gold-deep:#A4771F;
  --gold-bright:#E6B44C;
  --gold-pale:#F2E6C4;
  --gold-wash:#FBF2DC;
  /* Emerald accent (từ header bảng giá đào tạo) */
  --emerald:#1C6B3C;
  --emerald-deep:#114E2A;
  --emerald-soft:#E6F0E8;
  /* Warm / hot accent cho CTA quan trọng */
  --hot:#E0592C;
  --hot-deep:#C13A1E;
  --grad-hot:linear-gradient(135deg,#F0783E 0%,#E0592C 48%,#C13A1E 100%);
  /* Neutrals ivory/beige */
  --ivory:#FBF7EE;
  --cream:#FFFDF8;
  --beige:#F4ECDC;
  --ink:#2A2117;
  --text:#4C4231;
  --muted:#776848;
  --line:#E8DCC2;
  --white:#fff;
  /* system */
  --radius:18px;
  --radius-sm:12px;
  --shadow-sm:0 2px 10px rgba(74,58,20,.06);
  --shadow:0 14px 40px -18px rgba(74,58,20,.28);
  --shadow-lg:0 30px 70px -28px rgba(74,58,20,.38);
  --grad-gold:linear-gradient(135deg,#E6B44C 0%,#C99A3B 52%,#A4771F 100%);
  --grad-ivory:linear-gradient(180deg,#FBF7EE 0%,#F4ECDC 100%);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ff-head:"Playfair Display",Georgia,serif;
  --ff-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--ff-body);color:var(--text);
  background:var(--ivory);line-height:1.68;font-size:16.5px;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--ff-head);color:var(--ink);line-height:1.18;margin:0 0 .5em;font-weight:700}
h1{font-size:clamp(2.2rem,5.4vw,4rem);letter-spacing:-.01em}
h2{font-size:clamp(1.8rem,3.8vw,2.8rem)}
h3{font-size:clamp(1.25rem,2.2vw,1.6rem)}
p{margin:0 0 1rem}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:6px}
::selection{background:var(--gold-pale);color:var(--ink)}

/* ---------- layout ---------- */
.container{width:min(100% - 40px,var(--container));margin-inline:auto}
.section{padding:clamp(3.4rem,7vw,6rem) 0}
.section--tight{padding:clamp(2.4rem,4.5vw,3.6rem) 0}
.section--beige{background:var(--beige)}
.section--ivory{background:var(--grad-ivory)}
.section--dark{background:linear-gradient(135deg,#1b1812,#2a2117);color:#efe6d4}
.section--dark h2,.section--dark h3{color:#fff}
.section--emerald{background:linear-gradient(135deg,var(--emerald-deep),var(--emerald));color:#eaf3ec}
.section--emerald h2,.section--emerald h3{color:#fff}
.grid{display:grid;gap:clamp(1.1rem,2.2vw,1.8rem)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.center{text-align:center}
.narrow{max-width:760px;margin-inline:auto}

/* ---------- section header (eyebrow 3-layer) ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  font-size:.74rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold-deep);margin-bottom:1rem;
}
.eyebrow::before{content:"";width:30px;height:2px;background:linear-gradient(90deg,transparent,var(--gold-bright) 45%,var(--gold-deep));border-radius:2px}
.eyebrow--c{justify-content:center}
.eyebrow--c::before{background:linear-gradient(90deg,var(--gold-deep),var(--gold-bright) 55%,transparent)}
.eyebrow--c::after{content:"";width:30px;height:2px;background:linear-gradient(90deg,var(--gold-deep),var(--gold-bright) 55%,transparent);border-radius:2px}
.lead{font-size:clamp(1rem,1.5vw,1.14rem);color:var(--muted);max-width:640px}
.center .lead{margin-inline:auto}

/* ---------- buttons ---------- */
.btn{
  --b:var(--grad-gold);
  display:inline-flex;align-items:center;gap:.55rem;justify-content:center;
  padding:.92rem 1.7rem;border-radius:999px;font-weight:600;font-size:.97rem;
  cursor:pointer;border:0;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s;
  background:var(--b);color:#fff;box-shadow:0 10px 24px -10px rgba(164,119,31,.7);white-space:nowrap;text-align:center;
}
.btn:hover{transform:translateY(-3px);box-shadow:0 18px 34px -12px rgba(164,119,31,.75)}
.btn--ghost{background:transparent;color:var(--ink);border:1.6px solid var(--line);box-shadow:none}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-deep);box-shadow:none}
.btn--emerald{background:linear-gradient(135deg,#227a44,var(--emerald-deep));box-shadow:0 10px 24px -10px rgba(17,78,42,.6)}
.btn--hot{background:var(--grad-hot);box-shadow:0 12px 26px -10px rgba(193,58,30,.75)}
.btn--hot:hover{box-shadow:0 20px 38px -12px rgba(193,58,30,.8)}
.btn--white{background:#fff;color:var(--ink);box-shadow:var(--shadow-sm)}
.btn--lg{padding:1.05rem 2.1rem;font-size:1.02rem}
.btn--block{width:100%}

/* ---------- header / nav ---------- */
.header{position:sticky;top:0;z-index:70;transition:all .3s var(--ease);
  background:rgba(251,247,238,.82);backdrop-filter:blur(12px);border-bottom:1px solid transparent}
.header.scrolled{background:rgba(251,247,238,.96);box-shadow:var(--shadow-sm);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.55rem 0;min-height:70px}
.brand{display:flex;align-items:center;gap:.7rem;flex-shrink:0}
.brand img{height:46px;width:auto}
.brand b{font-family:var(--ff-head);font-size:1.12rem;color:var(--ink);line-height:1.05}
.brand span{display:block;font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-deep);font-weight:600}
.menu{display:flex;align-items:center;gap:.15rem}
.menu a{padding:.55rem .9rem;font-size:.92rem;font-weight:600;color:var(--text);transition:color .25s;position:relative;letter-spacing:.012em}
.menu a::after{content:"";position:absolute;left:.9rem;right:.9rem;bottom:.34rem;height:2px;background:var(--grad-gold);border-radius:2px;transform:scaleX(0);transform-origin:center;transition:transform .3s var(--ease)}
.menu a:hover,.menu a.active{color:var(--gold-deep)}
.menu a:hover::after,.menu a.active::after{transform:scaleX(1)}
.nav__cta{display:flex;align-items:center;gap:.6rem}
.nav__phone{display:inline-flex;align-items:center;gap:.45rem;font-weight:700;color:var(--emerald);font-size:.95rem;white-space:nowrap}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:26px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--grad-ivory);overflow:hidden;padding:clamp(2.4rem,5vw,4.5rem) 0 clamp(3rem,6vw,5rem)}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(60% 50% at 85% 15%,rgba(230,180,76,.22),transparent 60%),
  radial-gradient(45% 40% at 10% 90%,rgba(28,107,60,.10),transparent 60%);pointer-events:none}
.hero__grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.5rem,4vw,3.2rem);align-items:center}
.hero h1{margin-bottom:1rem}
.hero h1 .hl{background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{font-size:1.1rem;color:var(--text);max-width:520px;margin-bottom:1.6rem}
.hero__cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-bottom:1.8rem}
.hero__trust{display:flex;flex-wrap:wrap;gap:1.4rem;color:var(--muted);font-size:.9rem}
.hero__trust b{color:var(--ink);font-family:var(--ff-body);font-weight:700;font-size:1.55rem;display:block;line-height:1;font-variant-numeric:tabular-nums}
.hero__media{position:relative}
.hero__media img{border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;height:auto;display:block;background:linear-gradient(135deg,var(--gold-wash),#fff)}
.hero__badge{position:absolute;left:-14px;bottom:26px;background:#fff;border-radius:16px;padding:.9rem 1.1rem;box-shadow:var(--shadow);display:flex;gap:.7rem;align-items:center;max-width:250px}
.hero__badge .ic{width:42px;height:42px;border-radius:12px;background:var(--gold-wash);display:grid;place-items:center;font-size:1.3rem;flex-shrink:0}
.hero__badge small{color:var(--muted);font-size:.78rem}
.hero__badge strong{display:block;color:var(--ink);font-size:.95rem}

/* ---------- marquee ---------- */
.marquee{background:var(--grad-gold);color:#fff;overflow:hidden;padding:.72rem 0;white-space:nowrap}
.marquee__track{display:inline-flex;gap:3rem;animation:marq 26s linear infinite;will-change:transform}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee span{font-weight:600;letter-spacing:.03em;display:inline-flex;align-items:center;gap:3rem;font-size:.96rem}
.marquee span::after{content:"✦";opacity:.7}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---------- cards ---------- */
.card{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold-pale)}
.card__num{font-family:var(--ff-head);font-size:2.4rem;color:var(--gold-pale);line-height:1;font-weight:700}
.card .ic{width:54px;height:54px;border-radius:14px;background:var(--gold-wash);display:grid;place-items:center;font-size:1.5rem;margin-bottom:1rem}
.card h3{margin-bottom:.4rem;font-size:1.22rem}
.card p{color:var(--muted);font-size:.95rem;margin:0}

/* feature list check */
.ck{display:flex;gap:.6rem;align-items:flex-start;margin-bottom:.6rem;font-size:.96rem}
.ck::before{content:"✓";flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--gold-wash);color:var(--gold-deep);display:grid;place-items:center;font-size:.8rem;font-weight:700;margin-top:2px}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.8rem}
.chip{font-size:.78rem;padding:.3rem .75rem;border-radius:999px;background:var(--gold-wash);color:var(--gold-deep);font-weight:600;border:1px solid var(--gold-pale)}
.chip--em{background:var(--emerald-soft);color:var(--emerald);border-color:#cfe5d6}

/* ---------- course cards ---------- */
.course{display:flex;flex-direction:column;background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.course:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.course__media{position:relative;aspect-ratio:16/11;overflow:hidden;background:linear-gradient(135deg,var(--gold-wash),#fff)}
.course__media img{width:100%;height:100%;object-fit:contain;transition:transform .6s var(--ease)}
.course:hover .course__media img{transform:scale(1.06)}
.course__tag{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);color:var(--gold-deep);font-weight:700;font-size:.74rem;padding:.3rem .7rem;border-radius:999px;letter-spacing:.04em}
.course__body{padding:1.3rem 1.4rem 1.5rem;display:flex;flex-direction:column;flex:1}
.course__body h3{font-size:1.18rem;margin-bottom:.35rem}
.course__meta{color:var(--muted);font-size:.88rem;margin-bottom:.7rem}
.course__price{margin-top:auto;display:flex;align-items:baseline;justify-content:space-between;gap:.5rem;padding-top:1rem;border-top:1px dashed var(--line)}
.course__price b{font-family:var(--ff-body);font-weight:700;color:var(--gold-deep);font-size:1.35rem;font-variant-numeric:tabular-nums}
.course__price small{color:var(--muted);font-size:.8rem}

/* ---------- pricing group table ---------- */
.pricetable{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.pricetable__head{background:var(--grad-gold);color:#fff;padding:1rem 1.4rem;font-family:var(--ff-head);font-size:1.25rem;display:flex;align-items:center;gap:.6rem}
.pricerow{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:center;padding:1rem 1.4rem;border-top:1px solid var(--line)}
.pricerow:nth-child(odd){background:var(--gold-wash)}
.pricerow h4{font-family:var(--ff-body);font-weight:600;color:var(--ink);margin:0;font-size:1.02rem}
.pricerow p{margin:.15rem 0 0;color:var(--muted);font-size:.85rem}
.pricerow b{font-family:var(--ff-body);font-weight:700;color:var(--gold-deep);font-size:1.28rem;white-space:nowrap;font-variant-numeric:tabular-nums}

/* ---------- timeline (lộ trình) ---------- */
.roadmap{display:grid;gap:1.4rem}
.rstep{display:grid;grid-template-columns:auto 1fr;gap:1.3rem;align-items:start}
.rstep__n{width:60px;height:60px;border-radius:50%;background:var(--grad-gold);color:#fff;display:grid;place-items:center;font-family:var(--ff-head);font-size:1.5rem;font-weight:700;box-shadow:var(--shadow-sm);position:relative}
.rstep:not(:last-child) .rstep__n::after{content:"";position:absolute;top:66px;left:50%;transform:translateX(-50%);width:2px;height:calc(100% + 1.4rem - 6px);background:linear-gradient(var(--gold-pale),transparent)}
.rstep__c{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:1.3rem 1.5rem;box-shadow:var(--shadow-sm)}
.rstep__c h3{margin-bottom:.3rem}

/* ---------- before/after ---------- */
.ba{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);background:linear-gradient(135deg,var(--gold-wash),#fff);border:1px solid var(--line)}
.ba img{width:100%;aspect-ratio:3/2;object-fit:contain;display:block}
.ba figcaption{padding:.7rem 1rem;font-size:.85rem;color:var(--muted);text-align:center}

/* ---------- gallery ---------- */
.gallery{columns:4 240px;column-gap:1rem}
.gallery figure{margin:0 0 1rem;break-inside:avoid;border-radius:var(--radius-sm);overflow:hidden;cursor:zoom-in;position:relative;box-shadow:var(--shadow-sm)}
.gallery img{width:100%;transition:transform .5s var(--ease)}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{position:absolute;inset:auto 0 0 0;padding:.9rem .9rem .7rem;font-size:.82rem;color:#fff;background:linear-gradient(transparent,rgba(30,22,10,.8));opacity:0;transition:.3s;font-weight:500}
.gallery figure:hover figcaption{opacity:1}
.gfilter{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-bottom:2rem}
.gfilter button{padding:.5rem 1.1rem;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--text);font-weight:600;font-size:.88rem;cursor:pointer;transition:.2s}
.gfilter button:hover{border-color:var(--gold)}
.gfilter button.active{background:var(--grad-gold);color:#fff;border-color:transparent}

/* lightbox */
.lb{position:fixed;inset:0;z-index:120;background:rgba(26,19,8,.92);display:none;place-items:center;padding:3vw}
.lb.open{display:grid}
.lb img{max-width:92vw;max-height:86vh;border-radius:10px;box-shadow:var(--shadow-lg)}
.lb__close,.lb__nav{position:absolute;background:rgba(255,255,255,.14);border:0;color:#fff;cursor:pointer;width:52px;height:52px;border-radius:50%;font-size:1.5rem;display:grid;place-items:center;transition:.2s}
.lb__close:hover,.lb__nav:hover{background:var(--gold)}
.lb__close{top:22px;right:22px}
.lb__nav{top:50%;transform:translateY(-50%)}
.lb__nav.prev{left:18px}
.lb__nav.next{right:18px}
.lb__cap{position:absolute;bottom:20px;left:0;right:0;text-align:center;color:#f3e8cf;font-size:.9rem}

/* ---------- expert ---------- */
.expert{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.expert__media{position:relative}
.expert__media img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;height:auto;display:block;background:linear-gradient(135deg,var(--gold-wash),#fff)}
.expert__media::before{content:"";position:absolute;inset:-14px -14px auto auto;width:120px;height:120px;border:3px solid var(--gold-pale);border-radius:var(--radius);z-index:-1}
.quote{border-left:3px solid var(--gold);padding:.3rem 0 .3rem 1.2rem;font-family:var(--ff-head);font-style:italic;font-size:1.15rem;color:var(--ink);margin:1.2rem 0}

/* ---------- partners ---------- */
.partners{display:flex;flex-wrap:wrap;gap:1rem 2rem;align-items:center;justify-content:center;opacity:.9}
.partners .p{padding:.6rem 1.2rem;border:1px solid var(--line);border-radius:12px;background:#fff;font-weight:600;color:var(--muted);font-size:.9rem}

/* ---------- faq ---------- */
.faq{max-width:820px;margin-inline:auto}
.qa{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:.8rem;background:var(--cream);overflow:hidden}
.qa summary{cursor:pointer;list-style:none;padding:1.1rem 1.3rem;font-weight:600;color:var(--ink);display:flex;justify-content:space-between;gap:1rem;align-items:center}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";font-size:1.4rem;color:var(--gold);transition:.3s;flex-shrink:0}
.qa[open] summary::after{transform:rotate(45deg)}
.qa__a{padding:0 1.3rem 1.1rem;color:var(--muted);font-size:.96rem}

/* ---------- form ---------- */
.formcard{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.5rem,3vw,2.4rem);box-shadow:var(--shadow)}
.field{margin-bottom:1rem}
.field label{display:block;font-size:.85rem;font-weight:600;color:var(--ink);margin-bottom:.4rem}
.field label .req{color:#c0392b}
.field input,.field select,.field textarea{
  width:100%;padding:.8rem 1rem;border:1.5px solid var(--line);border-radius:12px;
  font-family:inherit;font-size:.97rem;color:var(--ink);background:#fff;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,154,59,.15)}
.field textarea{resize:vertical;min-height:110px}
.form-note{font-size:.82rem;color:var(--muted);margin-top:.4rem}
.form-ok{display:none;background:var(--emerald-soft);border:1px solid #bfe0c9;color:var(--emerald-deep);padding:1rem 1.2rem;border-radius:12px;margin-top:1rem;font-size:.92rem}
.form-ok.show{display:block}

/* ---------- info cards (contact) ---------- */
.info{display:flex;gap:1rem;align-items:flex-start;padding:1.2rem 1.3rem;background:var(--cream);border:1px solid var(--line);border-radius:var(--radius-sm)}
.info .ic{width:46px;height:46px;border-radius:12px;background:var(--gold-wash);display:grid;place-items:center;font-size:1.3rem;flex-shrink:0}
.info small{color:var(--muted);font-size:.8rem;display:block}
.info b{color:var(--ink);font-size:1rem}
.info a{color:var(--emerald);font-weight:600}

/* ---------- page hero (subpages) ---------- */
.phero{background:linear-gradient(135deg,#1b1812,#2a2117);color:#efe6d4;padding:clamp(2.6rem,6vw,4.4rem) 0;position:relative;overflow:hidden}
.phero::before{content:"";position:absolute;inset:0;background:radial-gradient(50% 60% at 90% 10%,rgba(230,180,76,.25),transparent 60%)}
.phero h1{color:#fff;margin-bottom:.5rem;position:relative}
.phero .crumb{position:relative;color:#c9b483;font-size:.88rem}
.phero .crumb a:hover{color:var(--gold-bright)}
.phero .lead{color:#d8cbb0;position:relative}

/* ---------- footer ---------- */
.footer{background:linear-gradient(135deg,#221c13,#13100b);color:#cdbf9f;padding:clamp(3rem,5vw,4rem) 0 1.6rem}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:2rem}
.footer h4{color:#fff;font-family:var(--ff-body);font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:1.1rem}
.footer a{color:#cdbf9f;font-size:.92rem;display:block;padding:.28rem 0;transition:.2s}
.footer a:hover{color:var(--gold-bright);transform:translateX(3px)}
.footer__brand img{height:54px;margin-bottom:1rem;filter:drop-shadow(0 4px 10px rgba(0,0,0,.4))}
.footer__brand p{color:#a89a7c;font-size:.92rem;max-width:320px}
.footer__bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:2.4rem;padding-top:1.4rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.84rem;color:#8c7f64}
.footer__social{display:flex;gap:.6rem}
.footer__social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center;color:#cdbf9f}
.footer__social a:hover{background:var(--gold);color:#fff;transform:translateY(-2px)}

/* ---------- floating action button (gộp 1 chỗ) ---------- */
.fab{position:fixed;right:max(14px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));z-index:90;display:flex;flex-direction:column-reverse;align-items:flex-end;gap:.65rem}
.fab__toggle{width:58px;height:58px;border-radius:50%;border:0;cursor:pointer;background:var(--grad-gold);color:#fff;font-size:1.5rem;display:grid;place-items:center;box-shadow:var(--shadow);transition:transform .3s var(--ease);position:relative;animation:ring 2s infinite}
.fab__toggle:hover{transform:scale(1.06)}
.fab.open .fab__toggle{animation:none;transform:rotate(135deg);background:linear-gradient(135deg,#8a6a18,#5f4910)}
.fab__menu{display:flex;flex-direction:column;align-items:flex-end;gap:.55rem;pointer-events:none}
.fab__item{display:inline-flex;align-items:center;gap:.6rem;opacity:0;transform:translateY(14px) scale(.8);transition:opacity .25s var(--ease),transform .25s var(--ease);pointer-events:none}
.fab.open .fab__menu{pointer-events:auto}
.fab.open .fab__item{opacity:1;transform:none;pointer-events:auto}
.fab.open .fab__item:nth-child(1){transition-delay:.02s}
.fab.open .fab__item:nth-child(2){transition-delay:.05s}
.fab.open .fab__item:nth-child(3){transition-delay:.08s}
.fab.open .fab__item:nth-child(4){transition-delay:.11s}
.fab.open .fab__item:nth-child(5){transition-delay:.14s}
.fab.open .fab__item:nth-child(6){transition-delay:.17s}
.fab.open .fab__item:nth-child(7){transition-delay:.2s}
.fab.open .fab__item:nth-child(8){transition-delay:.23s}
.fab__item .lbl{background:rgba(26,19,8,.9);color:#fff;font-size:.78rem;font-weight:600;padding:.32rem .7rem;border-radius:8px;white-space:nowrap;box-shadow:var(--shadow-sm)}
.fab__item .ico{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--c,#555);box-shadow:var(--shadow-sm);font-weight:700;font-size:.72rem;flex-shrink:0;transition:transform .2s}
.fab__item:hover .ico{transform:scale(1.1)}
.fab__item svg{width:22px;height:22px;fill:#fff}
@keyframes ring{0%,100%{box-shadow:0 0 0 0 rgba(201,154,59,.5)}50%{box-shadow:0 0 0 14px rgba(201,154,59,0)}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.marquee__track{animation:none}*{scroll-behavior:auto!important}}

/* ---------- utilities ---------- */
.mt1{margin-top:1rem}.mt2{margin-top:2rem}.mb0{margin-bottom:0}
.tag-row{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.2rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.4rem,3.5vw,2.6rem);align-items:center}
.ratio img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;object-fit:cover}

/* ---------- blog listing ---------- */
.post-card{display:flex;flex-direction:column;background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.post-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.post-card__media{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,var(--gold-wash),#fff)}
.post-card__media img{width:100%;height:100%;object-fit:contain;transition:transform .6s var(--ease)}
.post-card:hover .post-card__media img{transform:scale(1.06)}
.post-card__body{padding:1.2rem 1.3rem 1.4rem;display:flex;flex-direction:column;flex:1}
.post-card__cat{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-deep);margin-bottom:.5rem}
.post-card__body h3{font-size:1.12rem;line-height:1.35;margin-bottom:.4rem}
.post-card__body p{color:var(--muted);font-size:.92rem;margin:0 0 1rem}
.post-card__more{margin-top:auto;color:var(--gold-deep);font-weight:600;font-size:.9rem}

/* ---------- hiệu ứng lung linh (toàn cục) ---------- */
@media (prefers-reduced-motion:no-preference){
  /* chữ gold điểm nhấn chảy nhẹ */
  .hero h1 .hl{background-size:220% auto;animation:goldFlow 6s linear infinite}
  @keyframes goldFlow{to{background-position:220% center}}
  /* shine chéo lướt qua ảnh khi hover */
  .course__media::after,.post-card__media::after,.ba::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
    background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.35) 48%,transparent 66%);
    transform:translateX(-120%);transition:transform .8s var(--ease)}
  .course:hover .course__media::after,.post-card:hover .post-card__media::after,.ba:hover::after{transform:translateX(120%)}
  .ba{position:relative}
  /* sparkle lấp lánh ở hero */
  .hero::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
    background-image:radial-gradient(2px 2px at 20% 30%,rgba(230,180,76,.9),transparent),radial-gradient(2px 2px at 70% 20%,rgba(230,180,76,.7),transparent),radial-gradient(1.5px 1.5px at 85% 60%,rgba(201,154,59,.8),transparent),radial-gradient(1.5px 1.5px at 35% 75%,rgba(230,180,76,.7),transparent),radial-gradient(2px 2px at 55% 45%,rgba(246,206,94,.8),transparent);
    animation:sparkle 5s ease-in-out infinite}
  @keyframes sparkle{0%,100%{opacity:.12}50%{opacity:.5}}
  .hero__content,.hero__media{position:relative;z-index:2}
  .hero__badge{animation:floatY 4.5s ease-in-out infinite}
  @keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
}

/* ---------- 3D interaction ---------- */
.scene{perspective:1100px}
.card,.course,.post-card{transform-style:preserve-3d;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .3s}
.tilt{transition:transform .12s linear!important}
@media (prefers-reduced-motion:reduce){.tilt{transform:none!important}}
@media (hover:none){.tilt{transform:none!important}}

/* ---------- article (post) ---------- */
.post{max-width:780px;margin-inline:auto}
.post__meta{display:flex;flex-wrap:wrap;gap:.6rem 1.2rem;color:var(--muted);font-size:.9rem;margin-bottom:1.6rem;align-items:center}
.post__meta .chip{margin:0}
.post__cover{border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1.8rem;width:100%;aspect-ratio:16/9;object-fit:contain;background:linear-gradient(135deg,var(--gold-wash),#fff)}
.post__body{font-size:1.06rem;line-height:1.85;color:#433a2b}
.post__body h2{font-size:clamp(1.5rem,3vw,2rem);margin:2.4rem 0 .9rem;scroll-margin-top:90px}
.post__body h3{font-size:1.28rem;margin:1.8rem 0 .7rem}
.post__body p{margin:0 0 1.15rem}
.post__body ul,.post__body ol{margin:0 0 1.2rem;padding-left:0}
.post__body ul li{position:relative;padding-left:1.7rem;margin-bottom:.6rem}
.post__body ul li::before{content:"✦";position:absolute;left:0;color:var(--gold);font-size:.9rem;top:.15rem}
.post__body ol{counter-reset:li;list-style:none}
.post__body ol li{position:relative;padding-left:2rem;margin-bottom:.6rem;counter-increment:li}
.post__body ol li::before{content:counter(li);position:absolute;left:0;top:.05rem;width:1.4rem;height:1.4rem;background:var(--gold-wash);color:var(--gold-deep);border-radius:50%;display:grid;place-items:center;font-size:.8rem;font-weight:700}
.post__body img,.post__body figure{margin:1.8rem 0}
.post__body figure img{border-radius:var(--radius);box-shadow:var(--shadow-sm);width:100%}
.post__body figcaption{text-align:center;font-size:.85rem;color:var(--muted);margin-top:.5rem}
.post__body a{color:var(--emerald);text-decoration:underline;text-underline-offset:2px}
.post__body blockquote{border-left:3px solid var(--gold);background:var(--gold-wash);padding:1rem 1.3rem;border-radius:0 12px 12px 0;margin:1.6rem 0;font-style:italic;color:var(--ink)}
.post__body table{width:100%;border-collapse:collapse;margin:1.6rem 0;font-size:.95rem}
.post__body th,.post__body td{border:1px solid var(--line);padding:.7rem .9rem;text-align:left}
.post__body th{background:var(--gold-wash);color:var(--ink)}
.post__cta{background:linear-gradient(135deg,var(--emerald-deep),var(--emerald));color:#eaf3ec;border-radius:var(--radius);padding:1.6rem 1.8rem;margin:2.2rem 0;text-align:center}
.post__cta h3{color:#fff;margin-bottom:.4rem}
.post__tags{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.8rem 0}

/* ---------- responsive ---------- */
/* small desktop / tablet landscape */
@media(max-width:980px){
  .g-4{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
  .hero__grid,.expert,.split{grid-template-columns:1fr}
  .expert__media{order:-1;max-width:420px;margin-inline:auto}
  .hero__media{max-width:440px;margin-inline:auto}
}
/* tablet portrait (iPad) — nav chuyển hamburger */
@media(max-width:900px){
  .menu,.nav__phone{display:none}
  .menu{position:fixed;inset:70px 0 auto 0;flex-direction:column;background:var(--cream);
    padding:1rem;gap:.2rem;box-shadow:var(--shadow);transform:translateY(-130%);transition:transform .35s var(--ease);align-items:stretch;border-bottom:1px solid var(--line);max-height:calc(100dvh - 70px);overflow:auto}
  .menu.open{display:flex;transform:none}
  .menu a{padding:.9rem 1rem;border-radius:12px}
  .menu a::after{display:none}
  .menu a:hover,.menu a.active{background:var(--gold-wash)}
  .burger{display:flex;flex-shrink:0}
  .nav{gap:.6rem}
  .g-3{grid-template-columns:repeat(2,1fr)}
}
/* phone */
@media(max-width:600px){
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .gallery{columns:2 150px}
  .pricerow{grid-template-columns:1fr;gap:.3rem}
  .pricerow b{font-size:1.15rem}
  .hero__trust{gap:1rem 1.4rem}
  .nav{gap:.5rem}
  .brand img{height:38px}
  .brand b{font-size:1rem}
  .brand-txt span{display:none}
  .nav__cta{gap:.4rem}
  .nav__cta .btn{padding:.6rem 1rem;font-size:.82rem}
  .section{padding:2.6rem 0}
}
@media(max-width:400px){ .nav__cta .btn{display:none} }
@media(max-width:460px){.gallery{columns:1}.fab__toggle{width:52px;height:52px;font-size:1.3rem}.fab__item .ico{width:42px;height:42px}}

/* ---------- Sản phẩm (Isamen & Jena Derma) ---------- */
.btn--sm{padding:.5rem 1rem;font-size:.82rem;border-radius:999px}
.brandhead{display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap;margin-bottom:1.6rem}
.brandhead .bh-ic{width:58px;height:58px;border-radius:16px;background:var(--grad-gold);display:grid;place-items:center;font-size:1.7rem;color:#fff;flex-shrink:0;box-shadow:var(--shadow-sm)}
.brandhead h2{margin:0}
.brandhead p{margin:.2rem 0 0;color:var(--muted);font-size:.95rem;max-width:620px}
.prodsub{display:flex;align-items:center;gap:.7rem;margin:2.2rem 0 1.1rem;font-family:var(--ff-head);font-size:1.3rem;color:var(--ink)}
.prodsub::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--gold-bright),var(--gold-deep));border-radius:2px;flex-shrink:0}
.prodsub span{font-family:var(--ff-body);font-size:.82rem;font-weight:600;color:var(--gold-deep);background:var(--gold-wash);border:1px solid var(--gold-pale);border-radius:999px;padding:.15rem .7rem;margin-left:.3rem}
.course__price .btn{margin-left:auto}
.course__badge{position:absolute;top:12px;right:12px;background:var(--grad-hot);color:#fff;font-weight:700;font-size:.7rem;padding:.26rem .62rem;border-radius:999px;letter-spacing:.03em;box-shadow:0 6px 14px -6px rgba(193,58,30,.7)}
.certband{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(1.1rem,2.4vw,1.8rem)}
.certcard{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.certcard:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.certcard__img{aspect-ratio:16/10;background:linear-gradient(135deg,var(--gold-wash),#fff);display:grid;place-items:center;overflow:hidden;cursor:zoom-in}
.certcard__img img{width:100%;height:100%;object-fit:contain}
.certcard__cap{padding:.9rem 1.2rem;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:.5rem}
.certcard__cap .k{color:var(--gold-deep)}
@media(max-width:700px){.certband{grid-template-columns:1fr}}