/* ===== Blood Sugar Health Banaba & Ginkgo Complex — DTG NUTRA
   Bảng màu lấy từ bao bì: xanh rừng đậm + vàng gold + cam nhấn (theo bộ slide đào tạo) ===== */
:root{
  --green-deep:#092a20; --green:#0d3b2e; --green-mid:#14543f; --green-soft:#1f6f54;
  --gold:#c9a227; --gold-soft:#e9c85a; --orange:#e8641f; --berry:#b5232c; --leaf:#5aa860;
  --ink:#10241d; --muted:#5c7268; --line:#dde9e2; --paper:#f3f8f5; --white:#fff;
  --r-sm:10px; --r-md:18px; --r-lg:26px; --pill:999px;
  --sec:96px;
  --sh-1:0 2px 10px rgba(9,42,32,.05);
  --sh-2:0 14px 40px rgba(9,42,32,.10);
  --sh-3:0 26px 60px rgba(9,42,32,.17);
  --ease:cubic-bezier(.22,1,.36,1);
  --wrap:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,'Segoe UI',Roboto,Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.brand-bar{height:4px;background:linear-gradient(90deg,var(--green-deep),var(--green-mid),var(--leaf),var(--gold))}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;border:none;border-radius:var(--pill);padding:15px 30px;cursor:pointer;font-size:16px;transition:transform .18s var(--ease),box-shadow .18s var(--ease);line-height:1;white-space:nowrap}
.btn-gold{background:var(--gold);color:var(--green-deep);box-shadow:0 10px 24px rgba(201,162,39,.3)}
.btn-gold:hover{transform:translateY(-2px)}

/* ===== Header ===== */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:saturate(150%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;height:80px}
.nav .logo img{height:30px;width:auto}
.nav-menu{display:flex;gap:22px;margin-left:auto;font-weight:600;font-size:14.5px}
.nav-menu a{position:relative;color:var(--ink);padding:4px 0;white-space:nowrap}
.nav-menu a:after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--green-mid);transition:width .2s var(--ease)}
.nav-menu a:hover{color:var(--green-mid)}
.nav-menu a:hover:after{width:100%}
.nav-right{display:flex;align-items:center;gap:14px}
.lang{display:flex;gap:2px;background:var(--paper);border:1px solid var(--line);border-radius:var(--pill);padding:4px}
.lang button,.lang a{border:none;background:none;font-weight:700;font-size:13px;padding:6px 11px;border-radius:var(--pill);cursor:pointer;color:var(--muted);transition:.15s;text-decoration:none;display:inline-block;line-height:1.2}
.lang button.active,.lang a.active{background:var(--green);color:#fff}
.lang a:hover{color:var(--green-mid)}
.lang a.active:hover{color:#fff}
.hamburger{display:none;font-size:26px;background:none;border:none;cursor:pointer;color:var(--green)}

/* ===== Hero ===== */
.hero{position:relative;background:radial-gradient(1000px 460px at 78% -8%,#1a6b50,var(--green) 62%),var(--green);color:#fff;overflow:hidden}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(70px);pointer-events:none}
.hero:before{width:420px;height:420px;background:var(--leaf);opacity:.28;top:-120px;left:-80px}
.hero:after{width:360px;height:360px;background:rgba(201,162,39,.45);bottom:-140px;right:8%}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:66px 0 78px}
.hero .eyebrow{display:inline-block;background:rgba(201,162,39,.18);color:var(--gold-soft);font-weight:700;padding:7px 16px;border-radius:var(--pill);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase}
.hero h1{font-size:48px;line-height:1.1;letter-spacing:-.02em;margin:20px 0 14px;font-weight:800;text-wrap:balance}
.hero h1 .hl{color:var(--gold-soft)}
.hero .sub{font-size:17.5px;color:#cfe5da;max-width:540px}
.hero-cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-trust{display:flex;gap:30px;margin-top:34px;flex-wrap:wrap}
.hero-trust div{font-size:13px;color:#a8c9ba}
.hero-trust b{display:block;font-size:24px;color:#fff;font-weight:800;line-height:1.15}
.hero-media{position:relative;min-height:470px;display:flex;align-items:flex-end;justify-content:center}
.hero-media:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(470px,92%);aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(201,162,39,.45),rgba(201,162,39,0) 68%);pointer-events:none}
.hero-media .prod{position:relative;z-index:2}
.hero-media .combo{width:100%;max-width:540px;filter:drop-shadow(0 30px 44px rgba(0,0,0,.5));animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-13px)}}
@media(prefers-reduced-motion:reduce){.hero-media .prod{animation:none}}
.hero-badge{position:absolute;bottom:2%;right:0;z-index:4;background:#fff;color:var(--green);border-radius:14px;padding:10px 16px;font-weight:800;box-shadow:var(--sh-2);font-size:12.5px;text-align:left;line-height:1.3}
.hero-badge span{color:var(--orange);display:block;font-size:17px}

/* ===== Sections ===== */
section{padding:var(--sec) 0}
.alt{background:var(--paper)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px}
.sec-head .kicker{color:var(--orange);font-weight:700;letter-spacing:.11em;text-transform:uppercase;font-size:12.5px}
.sec-head h2{font-size:36px;font-weight:800;letter-spacing:-.01em;color:var(--green);margin:10px 0 12px;text-wrap:balance}
.sec-head p{color:var(--muted);font-size:16.5px}
.dark{background:radial-gradient(900px 420px at 80% -10%,#1a6b50,var(--green) 62%),var(--green);color:#fff}
.dark .sec-head h2{color:#fff}
.dark .sec-head p{color:#cfe5da}
.dark .sec-head .kicker{color:var(--gold-soft)}

/* Benefits */
.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.benefit{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:32px 26px;text-align:center;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.benefit:hover{transform:translateY(-6px);box-shadow:var(--sh-2)}
.benefit img{width:76px;height:76px;margin:0 auto 16px}
.benefit h3{font-size:18.5px;color:var(--green);margin-bottom:7px;font-weight:700}
.benefit p{color:var(--muted);font-size:14.8px}

/* Mechanism — 3 bước Banaba */
.mech{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative}
.mech-step{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:30px 26px 28px;box-shadow:var(--sh-1);position:relative;transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.mech-step:hover{transform:translateY(-5px);box-shadow:var(--sh-2)}
.mech-step .n{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--green),var(--green-soft));color:var(--gold-soft);font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.mech-step h4{color:var(--green);font-size:18px;font-weight:700;margin-bottom:7px}
.mech-step p{color:var(--muted);font-size:14.6px}
.mech-note{margin:26px auto 0;max-width:900px;background:var(--orange);color:#fff;border-radius:var(--r-md);padding:16px 24px;font-weight:700;text-align:center;font-size:15.5px;box-shadow:0 10px 26px rgba(232,100,31,.26)}

/* Formula — 4 tầng */
.tiers{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tier{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);padding:26px 22px;backdrop-filter:blur(4px);transition:transform .2s var(--ease),background .2s}
.tier:hover{transform:translateY(-5px);background:rgba(255,255,255,.12)}
.tier .tag{display:inline-block;background:var(--gold);color:var(--green-deep);font-weight:800;font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;padding:5px 12px;border-radius:var(--pill);margin-bottom:14px}
.tier h4{color:#fff;font-size:17.5px;font-weight:700;margin-bottom:3px}
.tier .dose{color:var(--gold-soft);font-weight:700;font-size:14px;margin-bottom:9px}
.tier p{color:#cfe5da;font-size:14.2px}

/* Ingredients — 5 hoạt chất chính */
.actives{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-bottom:12px}
.active-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);text-align:center;display:flex;flex-direction:column;transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.active-card:hover{transform:translateY(-5px);box-shadow:var(--sh-2)}
.active-card .ph{aspect-ratio:4/3;overflow:hidden;background:var(--paper)}
.active-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.active-card:hover .ph img{transform:scale(1.06)}
.active-card .body{padding:18px 16px 22px}
.active-card h4{color:var(--green);font-size:15.5px;font-weight:700;line-height:1.3}
.active-card .dose{color:var(--orange);font-weight:700;font-size:13px;margin:4px 0 8px}
.active-card p{color:var(--muted);font-size:13.6px}

/* Thảo dược bổ trợ */
.subhead{text-align:center;color:var(--green);font-size:21px;font-weight:800;margin:56px 0 8px;letter-spacing:-.01em}
.subnote{text-align:center;color:var(--muted);font-size:14.5px;max-width:760px;margin:0 auto 26px}
.herb-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.herb{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.herb:hover{transform:translateY(-5px);box-shadow:var(--sh-2)}
.herb .ph{aspect-ratio:1;overflow:hidden;background:#eef5f1}
.herb .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.herb:hover .ph img{transform:scale(1.06)}
.herb figcaption{padding:13px 12px 16px;text-align:center}
.herb figcaption h5{color:var(--green);font-size:14.5px;font-weight:700;margin-bottom:3px}
.herb figcaption p{color:var(--muted);font-size:12.6px;line-height:1.5}

/* Evidence — bảng nghiên cứu */
.evi-wrap{display:block}
.evi-scroll{overflow-x:auto;border-radius:var(--r-md);box-shadow:var(--sh-1);background:#fff;border:1px solid var(--line)}
table.evi{width:100%;border-collapse:collapse;font-size:14px;min-width:900px;table-layout:fixed}
table.evi col.c-study{width:17%} table.evi col.c-subj{width:23%}
table.evi col.c-dose{width:23%}  table.evi col.c-res{width:37%}
table.evi thead th{background:var(--green);color:#fff;font-weight:700;text-align:left;padding:14px 16px;font-size:13.5px;letter-spacing:.01em}
table.evi td{padding:15px 16px;border-top:1px solid var(--line);color:var(--muted);vertical-align:top;line-height:1.55}
table.evi tbody tr:nth-child(even){background:#fafcfb}
table.evi td.study{color:var(--green);font-weight:700}
table.evi td.result{color:var(--ink)}
.takeaways{margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px 26px 28px;box-shadow:var(--sh-1)}
.takeaways h4{color:var(--green);font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px;font-size:17.5px}
.takeaways ul{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:0 26px}
.takeaways li{padding:4px 0 4px 28px;position:relative;color:var(--muted);font-size:14.3px}
.takeaways li:before{content:"✓";position:absolute;left:0;top:4px;color:var(--leaf);font-weight:800}
@media(max-width:1000px){.takeaways ul{grid-template-columns:1fr;gap:0}.takeaways li{padding:9px 0 9px 28px;border-top:1px solid var(--line)}.takeaways li:first-child{border-top:none}.takeaways li:before{top:9px}}

/* Complications — Ginkgo bảo vệ */
.comp-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:center}
.comp-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.comp{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);padding:24px 22px;backdrop-filter:blur(4px);transition:transform .2s var(--ease),background .2s}
.comp:hover{transform:translateY(-4px);background:rgba(255,255,255,.12)}
.comp .n{color:var(--gold-soft);font-weight:800;font-size:13px;letter-spacing:.08em;margin-bottom:6px}
.comp h4{color:#fff;font-size:17px;font-weight:700;margin-bottom:6px}
.comp p{color:#cfe5da;font-size:14px}
.comp-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3)}
.comp-media img{width:100%;height:100%;object-fit:cover}

/* Certs */
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cert-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);display:block;transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.cert-card:hover{transform:translateY(-5px);box-shadow:var(--sh-2)}
.cert-card img{width:100%;height:330px;object-fit:contain;object-position:top;background:#fff;padding:12px}
.cert-card span{display:block;text-align:center;padding:13px;color:var(--green);font-weight:600;font-size:13.8px;border-top:1px solid var(--line)}

/* Factory */
.factory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:34px}
.factory-shot{border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-2);display:block;aspect-ratio:3/4;transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.factory-shot:hover{transform:translateY(-5px);box-shadow:var(--sh-3)}
.factory-shot img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.factory-shot:hover img{transform:scale(1.06)}
.factory-card{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:38px 34px;box-shadow:var(--sh-1);text-align:center}
.factory-card .fname{color:var(--green);font-size:24px;font-weight:800;letter-spacing:-.01em}
.factory-card .faddr{color:var(--muted);font-size:14.6px;margin-top:10px}
.factory-badges{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:20px}
.factory-badges span{background:var(--paper);border:1px solid var(--line);color:var(--green);font-weight:700;font-size:13px;padding:8px 16px;border-radius:var(--pill)}

/* Info cards */
.info-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:30px;box-shadow:var(--sh-1)}
.info-card h3{color:var(--green);margin-bottom:14px;display:flex;align-items:center;gap:9px;font-weight:700;font-size:19px}
.info-card ul{list-style:none}
.info-card li{padding:9px 0 9px 28px;position:relative;color:var(--ink);font-size:15px}
.info-card li:before{content:"✓";position:absolute;left:0;color:var(--leaf);font-weight:800}
.info-card.note li:before{content:"!";color:var(--orange)}

/* Footer */
.footer{background:var(--green-deep);color:#a9c7b9;padding:60px 0 26px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr .7fr 1.3fr;gap:38px;margin-bottom:32px}
.footer h4{color:#fff;margin-bottom:15px;font-size:16px;font-weight:700}
.footer a{display:block;padding:5px 0;color:#a9c7b9;transition:.15s}
.footer a:hover{color:var(--gold-soft)}
.footer .logo img{height:32px;width:auto;margin-bottom:16px}
.f-company div{padding:6px 0;line-height:1.5;color:#a9c7b9}
.f-company b{color:#fff;font-weight:600}
.foot-note{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-size:13px;text-align:center;color:#7fa593}

@media(max-width:1000px){
  :root{--sec:66px}
  .hero-grid{grid-template-columns:1fr;text-align:center;padding:48px 0}
  .hero .sub{margin:0 auto}
  .hero-cta,.hero-trust{justify-content:center}
  .hero h1{font-size:36px}
  .hero-media{min-height:auto;padding-top:8px}
  .hero-media .combo{max-width:460px}
  .benefits{grid-template-columns:repeat(2,1fr)}
  .mech{grid-template-columns:1fr}
  .tiers{grid-template-columns:repeat(2,1fr)}
  .actives{grid-template-columns:repeat(3,1fr)}
  .factory-grid{grid-template-columns:repeat(2,1fr)}
  .herb-grid{grid-template-columns:repeat(3,1fr)}
  .evi-wrap{grid-template-columns:1fr}
  .comp-wrap{grid-template-columns:1fr}
  .comp-media{max-height:320px}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .info-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav-menu{display:none;position:absolute;top:80px;left:0;right:0;flex-direction:column;background:#fff;padding:16px 22px;border-bottom:1px solid var(--line);box-shadow:var(--sh-2)}
  .nav-menu.open{display:flex}
  .hamburger{display:block;order:5}
  .hero h1{font-size:31px}
  .hero-media{min-height:250px}
  .hero-media{max-width:100%;flex-wrap:wrap}
  .hero-media .combo{width:96%;max-width:none}
  .hero-badge{position:static;width:100%;margin:16px 0 0;text-align:center}
  .sec-head h2{font-size:26px}
  .benefits{grid-template-columns:1fr}
  .tiers{grid-template-columns:1fr}
  .actives{grid-template-columns:repeat(2,1fr)}
  .factory-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .herb-grid{grid-template-columns:repeat(2,1fr)}
  .comp-grid{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .factory-card{padding:30px 22px}
  .factory-card .fname{font-size:20px}
}

/* ===== Đa trang: hero rút gọn, nút xem chi tiết, khối điều hướng ===== */
.page-hero{position:relative;background:radial-gradient(900px 380px at 78% -20%,#1a6b50,var(--green) 62%),var(--green);color:#fff;overflow:hidden;padding:48px 0 54px}
.page-hero:after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:rgba(201,162,39,.35);filter:blur(70px);bottom:-180px;right:6%;pointer-events:none}
.page-hero .wrap{position:relative}
.crumb{font-size:13px;color:#9dc2ae;margin-bottom:14px}
.crumb a{color:#9dc2ae;text-decoration:none}
.crumb a:hover{color:var(--gold-soft)}
.crumb span{color:#cfe5da}
.page-hero h1{font-size:40px;line-height:1.14;font-weight:800;letter-spacing:-.02em;max-width:880px;text-wrap:balance}
.page-hero .lead{margin-top:14px;font-size:17px;color:#cfe5da;max-width:720px}

.sec-cta{text-align:center;margin-top:36px}
.sec-cta .btn{gap:10px}
.sec-cta .btn:after{content:"→";font-weight:700}
.dark .sec-cta .btn-gold{box-shadow:0 10px 26px rgba(0,0,0,.22)}

.explore{background:var(--paper);border-top:1px solid var(--line)}
.explore h2{text-align:center;color:var(--green);font-size:26px;font-weight:800;margin-bottom:30px;letter-spacing:-.01em}
.explore-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ex-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 22px;box-shadow:var(--sh-1);display:block;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.ex-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.ex-card h3{color:var(--green);font-size:17px;font-weight:700;margin-bottom:6px}
.ex-card p{color:var(--muted);font-size:14px}
.ex-card .go{display:inline-block;margin-top:10px;color:var(--orange);font-weight:700;font-size:13.5px}

@media(max-width:1000px){
  .page-hero{padding:38px 0 42px}
  .page-hero h1{font-size:31px}
  .explore-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .page-hero h1{font-size:26px}
  .page-hero .lead{font-size:15.5px}
  .explore-grid{grid-template-columns:1fr}
}