/* ============ TOKENS ============ */
:root{
  /* Primary navy from box */
  --ink-950:#04081a;
  --ink-900:#070e2a;
  --ink-800:#0a1840;     /* box navy */
  --ink-700:#102966;
  --ink-600:#1c3a8a;
  --blue-500:#1f4cd9;    /* cobalt accent */
  --blue-400:#3a73f0;
  --glow:#5fb0ff;        /* cyan glow on box */
  /* Warm accents */
  --gold:#f4b62b;
  --gold-soft:#ffe082;
  --red:#e63a3a;
  --red-deep:#b51212;
  /* Neutrals */
  --paper:#f5f7fc;
  --paper-warm:#fbf7ee;
  --line:rgba(10,24,64,.10);
  --line-dark:rgba(255,255,255,.14);
  --text:#0a1840;
  --text-muted:#5a6a90;
  --text-dim:#8a98b8;
  /* Layout */
  --container:1180px;
  --safe-x:clamp(16px,4vw,34px);
  --section-y:clamp(48px,7vw,96px);
  --r-sm:10px;
  --r-md:18px;
  --r-lg:26px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(10,24,64,.06);
  --shadow-md:0 12px 30px rgba(10,24,64,.10);
  --shadow-lg:0 24px 60px rgba(10,24,64,.20);
  --shadow-glow:0 18px 50px rgba(31,76,217,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Be Vietnam Pro",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  font-weight:500;
  color:var(--text);
  background:var(--paper);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  padding-bottom:calc(86px + env(safe-area-inset-bottom));
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.wrap{width:min(var(--container),calc(100% - var(--safe-x)*2));margin-inline:auto}

/* ============ PROMO HEADER (KM bar) ============ */
.promo{background:#fff;border-bottom:3px solid var(--red);position:relative;z-index:50}
.promo-inner{
  width:min(var(--container),calc(100% - var(--safe-x)*2));margin-inline:auto;
  display:grid;grid-template-columns:auto 1fr auto;gap:clamp(14px,2.5vw,28px);
  align-items:center;padding:14px 0;
}
.promo-logo{display:flex;align-items:center;gap:14px;min-width:0}
.promo-logo img{height:54px;width:auto;flex-shrink:0}
.promo-logo .brand-text{display:flex;flex-direction:column;line-height:1.1;min-width:0}
.promo-logo .brand-text strong{font-size:14px;font-weight:800;color:var(--ink-800);letter-spacing:.5px;text-transform:uppercase}
.promo-logo .brand-text span{font-size:12px;color:var(--text-muted);font-weight:600}

.promo-mid{display:flex;align-items:center;gap:18px;justify-content:center;flex-wrap:wrap}
.km-tag{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 18px 10px 30px;font-weight:900;color:#fff;font-size:15px;letter-spacing:.3px;
  background:var(--red);
  clip-path:polygon(14px 0,100% 0,calc(100% - 14px) 50%,100% 100%,14px 100%,0 50%);
  text-transform:uppercase;
}
.km-tag::after{content:"";position:absolute;left:18px;top:50%;width:5px;height:5px;border-radius:50%;background:#fff;transform:translateY(-50%)}
.ship-pill{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:#fff8e3;border:1.5px solid #f6d27a;color:#9a6300;font-weight:800;font-size:14px;
}
.ship-pill .ico{width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:var(--gold);color:#fff;font-size:13px}

.promo-cta{
  display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:var(--r-pill);
  background:linear-gradient(180deg,#ff5a3c,#d80f10);color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 6px 0 #8a0608,0 14px 28px rgba(216,15,16,.32);
  border:2px solid #ffd56b;letter-spacing:.4px;text-transform:uppercase;white-space:nowrap;
  animation:cta-pulse 1.6s infinite;
}
.promo-cta:hover{filter:brightness(1.06)}
@keyframes cta-pulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-2px);filter:brightness(1.08)}}

/* ============ TOPBAR ============ */
.topbar{
  position:sticky;top:0;z-index:40;
  background:rgba(7,14,42,.92);backdrop-filter:saturate(140%) blur(14px);
  border-bottom:1px solid rgba(95,176,255,.22);
  color:#fff;
}
.topbar-inner{height:60px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.tb-brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.5px}
.tb-mark{
  width:38px;height:38px;display:grid;place-items:center;border-radius:10px;
  background:linear-gradient(145deg,var(--blue-400),var(--ink-800));
  color:#fff;font-weight:900;font-size:15px;letter-spacing:.5px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18),0 8px 18px rgba(31,76,217,.45);
}
.tb-brand span{font-size:14px;color:#cfd9f5;font-weight:600}
.tb-nav{display:flex;gap:28px;font-size:14px;color:#cfd9f5;font-weight:600}
.tb-nav a{transition:color .2s}
.tb-nav a:hover{color:var(--glow)}
.tb-actions{display:flex;gap:10px}
.tb-pill{
  padding:9px 16px;border-radius:var(--r-pill);font-weight:700;font-size:14px;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.05);
}
.tb-pill.solid{
  background:linear-gradient(180deg,#ff5a3c,#d80f10);border:0;color:#fff;
  box-shadow:0 6px 16px rgba(216,15,16,.4);
}

/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 600px at 12% -10%,rgba(95,176,255,.22),transparent 60%),
    radial-gradient(900px 500px at 100% 10%,rgba(244,182,43,.14),transparent 55%),
    linear-gradient(180deg,var(--ink-900),var(--ink-800) 55%,var(--ink-950));
  color:#fff;
  padding:clamp(48px,8vw,100px) 0 clamp(48px,7vw,84px);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:30px 30px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0,transparent 70%);
  opacity:.5;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,60px);align-items:center}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(95,176,255,.12);
  border:1px solid rgba(95,176,255,.32);
  color:#cfe6ff;font-weight:700;font-size:13px;letter-spacing:1.2px;text-transform:uppercase;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--glow);box-shadow:0 0 12px var(--glow)}

.hero h1{
  font-size:clamp(40px,5.4vw,50px);line-height:auto;letter-spacing:-1px;
  font-weight:900;margin:18px 0 14px;text-transform:uppercase;text-wrap:balance;
}
.hero h1 .accent{
  display:block;
  background:linear-gradient(180deg,var(--gold-soft),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 6px 18px rgba(244,182,43,.35));
}
.hero .lede{
  font-size:clamp(16px,1.4vw,19px);font-weight:500;color:#cfd9f5;max-width:560px;
  margin:0 0 24px;line-height:1.55;
}
.hero .lede b{color:#fff}

.hero-badges{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0 28px;max-width:580px}
.mini{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:14px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.12);
}
.mini .ico{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(145deg,var(--blue-400),var(--ink-700));
  border:1px solid rgba(95,176,255,.4);
  box-shadow:0 6px 14px rgba(31,76,217,.4);
  font-size:20px;
}
.mini b{font-size:14px;font-weight:700;color:#fff;line-height:1.2}
.mini span{font-size:12px;color:#9ab2e0}

.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:18px 32px;border-radius:var(--r-pill);
  background:linear-gradient(180deg,#ff5a3c,#d80f10);color:#fff;font-weight:800;font-size:17px;
  letter-spacing:.5px;text-transform:uppercase;
  box-shadow:0 8px 0 #8a0608,0 18px 36px rgba(216,15,16,.4);
  border:2px solid #ffd56b;transition:transform .15s,filter .15s;
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-primary .arrow{font-size:20px;transition:transform .2s}
.btn-primary:hover .arrow{transform:translateX(4px)}

.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:14px 22px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);color:#fff;font-weight:700;
}
.btn-ghost:hover{background:rgba(255,255,255,.12)}

.social-proof{
  display:inline-flex;align-items:center;gap:10px;margin-top:20px;
  padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(244,182,43,.12);border:1px solid rgba(244,182,43,.35);
  color:#ffe082;font-weight:700;font-size:14px;
}
.social-proof .live{position:relative;width:8px;height:8px;border-radius:50%;background:#22c55e}
.social-proof .live::after{content:"";position:absolute;inset:-4px;border-radius:50%;background:rgba(34,197,94,.5);animation:ping 1.6s infinite}
@keyframes ping{0%{transform:scale(.8);opacity:.7}80%,100%{transform:scale(2);opacity:0}}

/* Hero visual */
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center}
.hero-frame{
  position:relative;
  width:100%;
  max-width:520px;
  border-radius:32px;
}

.main-carousel{
  width:100%;
  border-radius:32px;
  overflow:hidden;
  background:rgba(7,14,42,.3);
}

/* Trước khi Flickity init, chỉ hiện slide đầu để tránh stacking dọc */
.main-carousel:not(.flickity-enabled) .carousel-cell{
  display:none;
}
.main-carousel:not(.flickity-enabled) .carousel-cell:first-child{
  display:block;
}

.carousel-cell{
  width:100%;
  position:relative;
}

.carousel-cell img{
  width:100%;
  height:auto;
  display:block;
}
.hero-frame::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 30% 20%,rgba(255,255,255,.18),transparent 40%),
    radial-gradient(circle at 80% 90%,rgba(244,182,43,.18),transparent 50%);
  pointer-events:none;
}

.seal{
  position:absolute;top:16px;right:16px;z-index:2;
  width:118px;height:118px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,#fff8d4,var(--gold) 75%);
  color:var(--ink-800);display:grid;place-items:center;text-align:center;
  font-weight:900;font-size:13px;line-height:1.1;text-transform:uppercase;
  box-shadow:0 14px 28px rgba(0,0,0,.35);
  border:4px solid #fff;transform:rotate(-8deg);
}
.seal small{display:block;font-size:10px;font-weight:700;margin-top:2px;text-transform:none;color:#7a4a00}

.trust-row{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  margin-top:clamp(40px,5vw,64px);padding-top:clamp(28px,3vw,36px);
  border-top:1px solid rgba(255,255,255,.12);
}
.trust-row .item{display:flex;align-items:center;gap:12px;color:#cfd9f5;font-weight:600;font-size:14px}
.trust-row .item .ico{
  width:36px;height:36px;display:grid;place-items:center;border-radius:10px;
  background:rgba(95,176,255,.12);border:1px solid rgba(95,176,255,.3);color:var(--glow);font-size:16px;
}

/* ============ SECTION FOUNDATIONS ============ */
.section{padding:var(--section-y) 0}
.section.dark{
  background:linear-gradient(180deg,var(--ink-900),var(--ink-800));
  color:#fff;position:relative;overflow:hidden;
}
.section.dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(800px 400px at 20% 0,rgba(95,176,255,.12),transparent 70%);
}
.section.tinted{background:#eef3fc}
.section-head{text-align:center;max-width:760px;margin:0 auto clamp(28px,4vw,48px)}
.kicker{
  display:inline-block;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(31,76,217,.10);color:var(--blue-500);font-weight:700;font-size:12px;
  letter-spacing:1.5px;text-transform:uppercase;margin-bottom:14px;
}
.section.dark .kicker{background:rgba(95,176,255,.14);color:var(--glow)}
.section-title{
  font-size:clamp(28px,3.6vw,46px);line-height:1.1;font-weight:800;
  letter-spacing:-.5px;margin:0;text-wrap:balance;
}
.section-title em{font-style:normal;color:var(--blue-500)}
.section.dark .section-title em{
  background:linear-gradient(180deg,var(--gold-soft),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-sub{margin-top:14px;color:var(--text-muted);font-size:17px;line-height:1.6}
.section.dark .section-sub{color:#b9c5e6}

/* ============ PAIN ============ */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pain-card{
  position:relative;background:#fff;border-radius:var(--r-lg);
  padding:10px;border:1px solid var(--line);
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;
  overflow:hidden;
  padding-bottom: 15px;
}
.pain-card::before{
  content:"";position:absolute;left:0;top:0;width:4px;height:100%;
  background:linear-gradient(180deg,var(--blue-500),var(--blue-400));
  opacity:0;transition:opacity .25s;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.pain-card:hover::before{opacity:1}
.pain-num{
  display:inline-flex;align-items:center;justify-content:center;width:100%;height:auto;
  border-radius:10px;background:linear-gradient(145deg,#eaf0ff,#dbe6ff);color:var(--blue-500);
  font-weight:900;font-size:14px;margin-bottom:14px;letter-spacing:.5px;
  border-radius: 20px;overflow: hidden;
}

.pain-num img {
    max-width: 100%;
    min-width: 100%;
}
.pain-card h3{font-size:17px;line-height:1.35;margin:0 0 8px;font-weight:800;color:var(--ink-800)}
.pain-card p{margin:0;color:var(--text-muted);font-size:14px;line-height:1.5}
.pain-notice{
  text-align:center;margin:36px auto 0;max-width:780px;padding:18px 24px;
  background:linear-gradient(135deg,#fff8e3,#fff2c9);border:1px solid #f0d68a;
  border-radius:var(--r-md);color:var(--ink-800);font-weight:600;font-size:16px;line-height:1.6;
}
.pain-notice b{color:var(--red-deep)}
.center-cta{display:flex;justify-content:center;margin-top:28px}

/* ============ PRODUCT SHOWCASE ============ */
.product-row{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,60px);align-items:center}
.product-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:radial-gradient(circle at 50% 40%,rgba(95,176,255,.25),rgba(7,14,42,.6) 70%);
  border:1px solid rgba(95,176,255,.25);
  box-shadow:var(--shadow-glow);
  width:100%;
}
.product-media img{position:relative;width:100%;height:auto;display:block;object-fit:contain;padding:0;filter:drop-shadow(0 20px 35px rgba(0,0,0,.5))}
.product-media .ribbon{
  position:absolute;left:18px;top:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);
  background:linear-gradient(180deg,var(--gold-soft),var(--gold));color:#5a3a00;
  font-weight:800;font-size:12px;text-transform:uppercase;letter-spacing:1px;
  box-shadow:0 6px 16px rgba(244,182,43,.45);
}
.product-content h2{font-size:clamp(26px,3vw,40px);line-height:1.1;margin:0 0 18px;font-weight:800;letter-spacing:-.5px;color:#fff}
.checks{display:grid;gap:14px;margin:18px 0}
.check{
  display:flex;gap:14px;align-items:flex-start;color:#cfd9f5;font-size:16px;line-height:1.5;
}
.check::before{
  content:"";flex:0 0 24px;width:24px;height:24px;border-radius:8px;
  background:linear-gradient(145deg,var(--blue-400),var(--blue-500));
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='5 12 10 17 19 7'/></svg>");
  background-size:16px;background-position:center;background-repeat:no-repeat;
  box-shadow:0 4px 10px rgba(31,76,217,.4);
  margin-top:1px;
}
.check b{color:#fff;font-weight:700}
.micro-trust{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}
.micro-trust span{
  padding:8px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:700;
  background:rgba(255,255,255,.08);color:#cfd9f5;border:1px solid rgba(255,255,255,.14);
}
.micro-trust i {
    color: #22c55e;
    margin-right: 5px;
    font-size: 15px;
}
.disclaimer{font-size:13px;color:#8da0c8;font-weight:500;margin:14px 0 0;font-style:italic}

/* ============ BENEFITS ============ */
.benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.benefit{
  position:relative;background:#fff;border-radius:var(--r-lg);
  padding:10px;text-align:center;border:1px solid var(--line);
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;
  overflow:hidden;
}
.benefit .ico-img {
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 10px;
    width: 100%;
}
.benefit .ico-img img {
  width: 100%;
  height: auto;
}
.benefit:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.benefit::before{
  content:"";position:absolute;left:50%;top:0;width:60%;height:3px;transform:translateX(-50%);
  background:linear-gradient(90deg,transparent,var(--blue-500),transparent);
  opacity:0;transition:opacity .25s;
}
.benefit:hover::before{opacity:1}
.benefit .ico{
  width:64px;height:64px;border-radius:18px;margin:0 auto 16px;
  display:grid;place-items:center;font-size:28px;
  background:linear-gradient(145deg,#eaf0ff,#dbe6ff);
  color:var(--blue-500);
  box-shadow:inset 0 0 0 1px rgba(31,76,217,.12),0 8px 18px rgba(31,76,217,.12);
}
.benefit b{display:block;font-size:16px;font-weight:800;color:var(--ink-800);line-height:1.3}
.benefit p{margin:6px 0 0;color:var(--text-muted);font-size:13px;line-height:1.45}

/* ============ INGREDIENTS ============ */
.ingredients{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ingredient{
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-lg);overflow:hidden;transition:transform .25s,border-color .25s;
}
.ingredient:hover{transform:translateY(-4px);border-color:rgba(95,176,255,.35)}
.ingredient .photo{
  aspect-ratio:4/3;
  background:radial-gradient(circle at 50% 50%,rgba(95,176,255,.2),rgba(7,14,42,.4));
  display:grid;place-items:center;font-size:48px;position:relative;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.ingredient .photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ingredient .photo .placeholder-emoji{filter:drop-shadow(0 6px 12px rgba(0,0,0,.4))}
.ingredient .txt{padding:18px}
.ingredient b{display:block;color:var(--gold);font-size:17px;font-weight:800;margin-bottom:6px}
.ingredient p{margin:0;color:#b9c5e6;font-size:13px;line-height:1.5}

/* ============ PROOF ============ */
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.proof{
  background:#fff;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s;
}
.proof:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.proof .mock{
  aspect-ratio:4/3;background:linear-gradient(135deg,#dde7f8,#b9caea);
  display:grid;place-items:center;font-size:42px;color:var(--blue-500);position:relative;
}
.proof .mock img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.proof .mock::after{
  content:attr(data-label);position:absolute;left:10px;top:10px;
  padding:4px 10px;border-radius:var(--r-pill);background:rgba(255,255,255,.85);
  color:var(--blue-500);font-size:10px;font-weight:800;letter-spacing:.6px;text-transform:uppercase;
}
.proof span.label{display:block;padding:16px;text-align:center;font-weight:700;color:var(--ink-800);font-size:14px;line-height:1.4}

/* ============ PROOF IMAGE BLOCKS ============ */
.nha-may-goay-phep,
.cup-dong,
.kiem-nghiem,
.giai-thuong{
  margin:20px 0;border-radius:var(--r-lg);overflow:hidden;
}
.nha-may-goay-phep img,
.cup-dong img,
.kiem-nghiem img,
.giai-thuong img{
  width:100%;height:auto;display:block;
}
.chung-nhan{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:20px 0;
}
.chung-nhan img{
  width:100%;height:auto;display:block;border-radius:var(--r-md);
}
@media (max-width:640px){
  .chung-nhan{grid-template-columns:1fr 1fr;gap:12px}
  .col-4-lg {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }
}

/* ============ REVIEWS ============ */
.reviews{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.review{
  background:#fff;border-radius:var(--r-lg);padding:20px;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;gap:12px;
}
.review-head{display:flex;align-items:center;gap:12px}
.review-avatar{
  width:46px;height:46px;flex-shrink:0;border-radius:50%;overflow:hidden;
  background:linear-gradient(135deg,#dde7f8,#b9caea);
  border:2px solid #fff;box-shadow:0 0 0 1.5px var(--blue-400);
}
.review-avatar img{width:100%;height:100%;object-fit:cover}
.review-meta .name{font-weight:800;color:var(--ink-800);font-size:14px;line-height:1.2}
.review-meta .stars{color:#fbbf24;font-size:13px;letter-spacing:1px;margin-top:3px}
.review-meta .verified{font-size:11px;color:#22c55e;font-weight:700;margin-top:2px}
.review p{margin:0;color:var(--text);font-size:14px;line-height:1.55}
.review-product{
  margin-top:auto;aspect-ratio:16/10;border-radius:12px;overflow:hidden;
  background:#eef3fc;border:1px solid var(--line);
}
.review-product img{width:100%;height:100%;object-fit:cover}

/* ============ CONVERSION (Offer + Form) ============ */
.conversion{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}

.offer{
  position:relative;
  background:linear-gradient(160deg,var(--ink-700),var(--ink-800) 60%,var(--ink-900));
  border:1px solid rgba(95,176,255,.25);border-radius:var(--r-lg);padding:clamp(22px,3vw,36px);
  box-shadow:var(--shadow-lg);overflow:hidden;
}
.offer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 300px at 100% 0,rgba(95,176,255,.18),transparent 60%);
}
.offer-badge{
  position:relative;display:inline-block;padding:10px 22px;border-radius:var(--r-pill);
  background:linear-gradient(180deg,#ff5a3c,#d80f10);color:#fff;font-weight:900;font-size:14px;
  text-transform:uppercase;letter-spacing:1px;border:2px solid #ffd56b;
  box-shadow:0 6px 16px rgba(216,15,16,.4);
}
.offer h3{position:relative;font-size:clamp(24px,2.6vw,34px);line-height:1.1;margin:14px 0 18px;color:#fff;font-weight:800}
.offer-deal{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:center;margin:8px 0 22px}
.offer-product{
  border-radius:var(--r-md);overflow:hidden;
  background:radial-gradient(circle,rgba(95,176,255,.2),rgba(7,14,42,.5));
  border:1px solid rgba(95,176,255,.2);
  width:100%;
}
.offer-product img{width:100%;height:auto;display:block;object-fit:contain;padding:0}

.pricebox{
  position:relative;background:linear-gradient(180deg,#fff8e3,var(--gold-soft));
  border-radius:var(--r-md);padding:18px;text-align:center;color:#7a3300;
  border:2px solid var(--gold);box-shadow:0 12px 28px rgba(244,182,43,.25);
}
.pricebox .strike{font-size:14px;font-weight:700;color:#a36b00;text-decoration:line-through}
.pricebox .price{font-size:clamp(36px,4vw,48px);font-weight:900;line-height:1;color:var(--red-deep);letter-spacing:-1px;margin:6px 0}
.pricebox .price-sub{display:block;font-size:12px;font-weight:700;color:#7a3300;text-transform:uppercase;letter-spacing:.5px}

.slots{
  position:relative;display:flex;align-items:center;justify-content:center;gap:10px;
  padding:14px;background:rgba(255,255,255,.05);border-radius:var(--r-md);
  color:var(--gold-soft);font-weight:700;font-size:15px;border:1px solid rgba(244,182,43,.25);
}
.slots b{
  background:var(--red);color:#fff;padding:4px 12px;border-radius:var(--r-pill);
  font-size:16px;font-weight:900;
}

.countdown{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px}
.time{
  background:linear-gradient(180deg,var(--ink-600),var(--ink-700));
  border:1px solid rgba(95,176,255,.25);
  border-radius:var(--r-md);padding:12px 8px;text-align:center;color:#fff;font-weight:700;font-size:11px;
  text-transform:uppercase;letter-spacing:.8px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.time b{display:block;font-size:clamp(28px,3vw,36px);line-height:1;color:#fff;letter-spacing:-1px;margin-bottom:4px;font-variant-numeric:tabular-nums;font-weight:900}

/* Form */
.order-card{
  position:sticky;top:80px;background:#fff;border-radius:var(--r-lg);padding:clamp(22px,3vw,32px);
  border:2px solid var(--gold);box-shadow:var(--shadow-lg);
}
.order-card h2{margin:0;text-align:center;font-size:clamp(22px,2.4vw,28px);font-weight:800;color:var(--red-deep);letter-spacing:-.3px}
.order-card .sub{text-align:center;color:var(--text-muted);font-size:13px;margin:6px 0 16px;font-weight:600}
.deal-badge{
  background:linear-gradient(180deg,#fff8e3,var(--gold-soft));
  color:#7a3300;text-align:center;font-weight:800;
  border-radius:var(--r-md);padding:14px;margin-bottom:16px;font-size:14px;line-height:1.4;
  border:1.5px solid var(--gold);
}
.deal-badge b{display:block;font-size:18px;color:var(--red-deep);font-weight:900;letter-spacing:.5px}
.form-note{
  background:#eaf0ff;color:var(--ink-700);border:1px solid #c8d3f0;border-radius:var(--r-md);
  padding:12px 14px;text-align:center;font-weight:700;font-size:13px;margin-bottom:16px;line-height:1.45;
}
.field{margin-bottom:14px}
.field label{display:block;font-weight:700;font-size:13px;color:var(--ink-800);margin-bottom:6px}
.field label .req{color:var(--red);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;font-weight:500;
  padding:14px 16px;border:1.5px solid #d6dee9;border-radius:var(--r-md);
  background:#fbfcfe;color:var(--ink-800);transition:border-color .15s,box-shadow .15s;
  outline:none;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--blue-500);box-shadow:0 0 0 4px rgba(31,76,217,.12);background:#fff;
}
.field input::placeholder,.field textarea::placeholder{color:#9aa6c2}
.field textarea{min-height:80px;resize:vertical}
.field.priority input{
  border-color:var(--gold);background:#fffbed;
  box-shadow:0 0 0 4px rgba(244,182,43,.14);
}
.submit{
  width:100%;margin-top:6px;padding:18px;font-size:17px;
  background:linear-gradient(180deg,#ff5a3c,#d80f10);color:#fff;font-weight:900;
  border:0;border-radius:var(--r-pill);cursor:pointer;
  text-transform:uppercase;letter-spacing:.6px;
  box-shadow:0 8px 0 #8a0608,0 14px 28px rgba(216,15,16,.32);
  transition:transform .15s,filter .15s;
}
.submit:hover{transform:translateY(-2px);filter:brightness(1.06)}
.trust-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px}
.trust-mini div{
  background:#f5f7fc;border-radius:var(--r-md);padding:12px;text-align:center;
  font-weight:700;font-size:13px;color:var(--ink-800);border:1px solid var(--line);
}
.trust-mini div .ico{display:block;font-size:18px;margin-bottom:4px;color:var(--blue-500)}
.disclaimer-form{font-size:11px;color:#7d8aa8;text-align:center;margin-top:14px;font-style:italic;font-weight:500;line-height:1.5}

/* ============ COMMITMENTS + INSTRUCTIONS ============ */
.bottom-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}
.commit-panel,.howto-panel{
  background:#fff;border-radius:var(--r-lg);padding:clamp(22px,3vw,32px);
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.commit-panel h3,.howto-panel h3{
  margin:0 0 18px;font-size:clamp(20px,2.2vw,26px);font-weight:800;color:var(--ink-800);
  display:flex;align-items:center;gap:12px;
}
.commit-panel h3::before,.howto-panel h3::before{
  content:"";width:6px;height:24px;border-radius:3px;
  background:linear-gradient(180deg,var(--blue-500),var(--blue-400));
}
.commit-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.commit-item{
  display:flex;gap:14px;align-items:flex-start;padding:14px;
  background:#f5f7fc;border-radius:var(--r-md);border:1px solid var(--line);
}
.commit-item .ico{
  flex:0 0 38px;width:38px;height:38px;border-radius:10px;
  background:linear-gradient(145deg,var(--blue-400),var(--blue-500));color:#fff;
  display:grid;place-items:center;font-size:18px;
  box-shadow:0 6px 14px rgba(31,76,217,.3);
}
.commit-item b{display:block;font-size:14px;color:var(--ink-800);font-weight:800}
.commit-item span{color:var(--text-muted);font-size:13px}

.howto-list{display:grid;gap:14px}
.howto-step{
  display:flex;gap:14px;padding:14px;border-radius:var(--r-md);
  background:#f5f7fc;border:1px solid var(--line);
}
.howto-step .num{
  flex:0 0 36px;width:36px;height:36px;border-radius:50%;
  background:linear-gradient(145deg,var(--ink-700),var(--ink-800));color:#fff;
  display:grid;place-items:center;font-weight:900;font-size:15px;
}
.howto-step b{display:block;font-size:14px;color:var(--ink-800);font-weight:800;margin-bottom:2px}
.howto-step span{color:var(--text-muted);font-size:13px;line-height:1.5}

/* ============ FOOTER ============ */
.footer{
  background:linear-gradient(180deg,var(--ink-900),var(--ink-950));color:#b9c5e6;
  padding:44px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:32px;align-items:start}
.footer-brand .mark{
  display:inline-flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:18px;margin-bottom:12px;
}
.footer-brand .mark .m{
  width:42px;height:42px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(145deg,var(--blue-400),var(--ink-700));
  border:1px solid rgba(95,176,255,.4);font-size:14px;font-weight:900;color:#fff;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.footer-brand p{margin:0;font-size:13px;line-height:1.6;color:#8da0c8}
.footer-col h4{margin:0 0 12px;color:#fff;font-size:14px;font-weight:800;letter-spacing:.5px;text-transform:uppercase}
.footer-col p,.footer-col a{display:block;margin:0 0 6px;color:#cfd9f5;font-size:14px;font-weight:500}
.footer-col a:hover{color:var(--glow)}
.footer-bottom{
  margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  font-size:12px;color:#7d8aa8;text-align:center;line-height:1.6;
}

/* ============ STICKY BOTTOM ============ */
.sticky{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:rgba(7,14,42,.95);backdrop-filter:saturate(140%) blur(14px);
  border-top:1px solid rgba(95,176,255,.25);
  padding:10px 12px calc(10px + env(safe-area-inset-bottom));
}
.sticky-bar{
  max-width:680px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr 1.3fr;gap:10px;
}
.sticky-bar a{
  display:flex;align-items:center;justify-content:center;gap:6px;
  padding:14px 10px;border-radius:var(--r-pill);font-weight:800;font-size:14px;color:#fff;
  text-transform:uppercase;letter-spacing:.4px;
}
.sticky-bar .call{background:linear-gradient(180deg,#10b981,#059669)}
.sticky-bar .zalo{background:linear-gradient(180deg,#3b9eff,#0c80ec)}
.sticky-bar .order{background:linear-gradient(180deg,#ff5a3c,#d80f10);box-shadow:0 6px 0 #8a0608}

/* ============ RESPONSIVE ============ */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;text-align:center}
  .hero-grid .hero-text{order:2}
  .hero-grid .hero-visual{order:1}
  .eyebrow,.hero-actions{justify-content:center}
  .hero-actions{display:flex;justify-content:center}
  .hero-badges{margin-inline:auto}
  .hero .lede{margin-inline:auto}
  .social-proof{margin-inline:auto}
  .product-row{grid-template-columns:1fr}
  .conversion{grid-template-columns:1fr}
  .bottom-grid{grid-template-columns:1fr}
  .order-card{position:static}
}

@media (max-width:760px){
  :root{--section-y:20px}
  .promo-inner{grid-template-columns:1fr;gap:12px;padding:12px 0}
  .promo-logo{justify-content:center}
  .promo-logo img{height:46px}
  .promo-mid{gap:10px}
  .km-tag{font-size:13px;padding:8px 14px 8px 24px}
  .ship-pill{font-size: 18px;
        padding: 6px 12px;
        font-weight: bold;}
  .promo-cta{padding:12px 18px;font-size:14px;width:auto}
  
  .topbar-inner{height:54px}
  .tb-nav,.tb-actions{display:none}
  
  .hero{padding:36px 0 36px}
  .hero h1{font-size:38px}
  .hero-badges{grid-template-columns:1fr;gap:10px}
  .mini{flex-direction:row;align-items:center}
  .mini b{font-size:15px}
  .seal{width:90px;height:90px;font-size:11px}
  .trust-row{grid-template-columns:repeat(2,1fr);gap:14px}
  
  .pain-grid,.benefits,.ingredients,.proof-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .pain-card,.benefit{padding:18px 16px}
  .benefit .ico{width:54px;height:54px;font-size:24px}
  
  .reviews{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;gap:14px;scrollbar-width:none}
  .reviews::-webkit-scrollbar{display:none}
  .review{min-width:80%;scroll-snap-align:start}
  
  .offer-deal{grid-template-columns:1fr}
  .offer-product{aspect-ratio:unset !important}
  
  .commit-list{grid-template-columns:1fr}
  
  .footer-grid{grid-template-columns:1fr;gap:24px}
  
  .btn-primary{padding:16px 24px;font-size:15px}
}

@media (max-width:400px){
  .promo-mid{gap:8px; justify-content: space-between !important;flex-wrap: unset !important;}
  .hero h1{font-size:34px}
  .pain-grid,.benefits,.ingredients,.proof-grid{grid-template-columns:1fr}
  .seal{width:78px;height:78px;font-size:10px}
  .seal small{font-size:9px}
  .trust-row{grid-template-columns:1fr 1fr;}
  .countdown{gap:6px}
  .time{padding:10px 4px}
  .time b{font-size:24px}
  .sticky-bar a{font-size:12px;padding:12px 6px}
}

/* Reduce motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

/* Flickity arrows */
.flickity-prev-next-button{
  width:42px !important;
  height:42px !important;
  border:none !important;
  border-radius:50% !important;
  background:rgba(10,18,40,.72) !important;
  backdrop-filter:blur(10px) !important;
  -webkit-backdrop-filter:blur(10px) !important;
  box-shadow:
    0 8px 20px rgba(0,0,0,.35),
    inset 0 0 0 1px rgba(255,255,255,.08) !important;
  transition:.25s ease !important;
}

.flickity-prev-next-button:hover{
  background:rgba(30,60,120,.9) !important;
  transform:scale(1.08) !important;
}

.flickity-prev-next-button:active{
  transform:scale(.96) !important;
}

.flickity-prev-next-button .flickity-button-icon{
  fill:#fff !important;
  width:16px !important;
  height:16px !important;
  left:13px !important;
  top:13px !important;
}

.flickity-prev-next-button.previous{
  left:12px !important;
}

.flickity-prev-next-button.next{
  right:12px !important;
}

.flickity-button:disabled{
  opacity:.35 !important;
}

@media(max-width:768px){

  .flickity-prev-next-button{
    width:36px !important;
    height:36px !important;
  }

  .flickity-prev-next-button .flickity-button-icon{
    width:14px !important;
    height:14px !important;
    left:11px !important;
    top:11px !important;
  }

}

.col-4-lg {
  display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}