/* ==========================================================
   LUMINA — Profile stylesheet (dùng chung cho index.html & index-en.html)
   Bảng màu chính thức: trắng chủ đạo · xanh lá · vàng mật ong
   ========================================================== */
:root{
  --green:#5FAF58; --green-lt:#84C86B; --green-bg:#DFF3D7;
  --honey:#F2B31A; --honey-lt:#FFD76A; --cream:#FFF7E7;
  --white:#FFFFFF; --dark:#1E4A33; --dark-2:#143323;
  --charcoal:#2B2B2B; --line:#E6E6E6;
  --maxw:1200px;
  --serif:"Playfair Display",Georgia,serif;
  --sans:"Be Vietnam Pro",system-ui,-apple-system,sans-serif;
  --pad-sec:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
/* Cỡ chữ nền: 17px + giãn dòng 1.78 — ưu tiên dễ đọc cho người lớn tuổi.
   Muốn to/nhỏ toàn trang chỉ cần đổi font-size ở đây. */
body{margin:0;font-family:var(--sans);color:var(--charcoal);background:var(--white);
  font-size:17px;line-height:1.78;font-weight:400;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.menu-open{overflow:hidden}
h1,h2,h3,h4{font-family:var(--serif);color:var(--dark);font-weight:600;line-height:1.2;margin:0}
p{margin:0 0 1em}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{font-family:var(--sans);font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  font-size:13px;color:#C68A08;margin-bottom:14px}
.eyebrow.green{color:#3F8C39}
.lede{font-size:21px;color:#3f3f3f}
section{padding:var(--pad-sec) 0;position:relative}
.sec-head{text-align:center;max-width:760px;margin:0 auto 44px}
.divider-leaf{display:flex;align-items:center;justify-content:center;gap:14px;margin:0 auto 8px}
.divider-leaf .ln{height:1px;width:70px;background:var(--green-lt)}
.note{font-size:15px;color:#6b6b6b;font-style:italic}

/* ---------- NỀN SECTION: sáng ---------- */
.tint{background:linear-gradient(180deg,#fff,var(--cream))}
.tint-green{background:var(--green-bg)}
.soft{background:#FBFDF9}

/* ---------- NỀN SECTION: ĐẬM (điểm nhấn xen kẽ) ---------- */
.sec-dark{background:linear-gradient(155deg,var(--dark) 0%,var(--dark-2) 100%);color:#cfe3d6;
  position:relative;overflow:hidden}
.sec-dark::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:radial-gradient(circle at 20% 30%,#F2B31A 0 2px,transparent 2px),
    radial-gradient(circle at 70% 60%,#F2B31A 0 2px,transparent 2px);
  background-size:90px 90px}
.sec-dark h1,.sec-dark h2,.sec-dark h3,.sec-dark h4{color:#fff}
.sec-dark p,.sec-dark .lede{color:#d5e8dc}
.sec-dark .eyebrow,.sec-dark .eyebrow.green{color:var(--honey-lt)}
.sec-dark .card,.sec-dark .item{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.14)}
.sec-dark .card p,.sec-dark .item span{color:#d0e5d8}
.sec-dark .card:hover{box-shadow:0 18px 40px rgba(0,0,0,.3);background:rgba(255,255,255,.08)}
.sec-dark .num{color:var(--honey-lt)}
.sec-dark .card .ic,.sec-dark .item .ic{color:var(--honey-lt)}
.sec-dark .gal img{border-color:rgba(255,255,255,.1)}

.sec-green{background:linear-gradient(155deg,var(--green) 0%,#4A9445 100%);color:#f2fbef;
  position:relative;overflow:hidden}
.sec-green h1,.sec-green h2,.sec-green h3,.sec-green h4{color:#fff}
.sec-green p,.sec-green .lede{color:#e6f6e2}
.sec-green .eyebrow{color:#fff}
.sec-green .step .n{background:#fff;color:var(--green);box-shadow:0 8px 20px rgba(0,0,0,.18)}
.sec-green .step b{color:#fff}
.sec-green .step span{color:#eaf8e6}
.sec-green .col-img img{box-shadow:0 20px 50px rgba(0,0,0,.25)}

.sec-honey{background:linear-gradient(155deg,var(--honey-lt) 0%,var(--honey) 100%);color:#4a3800}
.sec-honey h1,.sec-honey h2,.sec-honey h3{color:#3d2f00}
.sec-honey p,.sec-honey .lede{color:#503e00}
.sec-honey .eyebrow,.sec-honey .eyebrow.green{color:#6b5000}
.sec-honey .item{background:rgba(255,255,255,.82);border-color:#fff}
.sec-honey .item .ic{color:var(--dark)}
.sec-honey .item b{color:var(--dark)}
.sec-honey .item span{color:#4a3900}

/* ---------- NAV ---------- */
header.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:10px 28px;display:flex;align-items:center;
  justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px}
.brand .txt{line-height:1}
.brand .txt b{font-family:var(--serif);font-size:20px;color:var(--dark);letter-spacing:.02em;display:block}
.brand .txt span{font-size:10px;letter-spacing:.42em;color:var(--green);font-weight:600}
.logo{width:40px;height:50px;flex:0 0 auto}
.nav-links{display:flex;gap:24px;align-items:center;font-size:16px;font-weight:500}
.nav-links a{color:#444;transition:color .2s}
.nav-links a:hover{color:var(--green)}
.nav-right{display:flex;align-items:center;gap:10px}
.lang{border:1px solid var(--green);color:var(--dark);border-radius:999px;padding:8px 15px;
  font-size:14px;font-weight:600;white-space:nowrap}
.lang b{color:var(--green)}

/* ==========================================================
   DẢI CHỨNG NHẬN CHẠY NGANG (chỉ hiện trên mobile)
   Nằm BÊN TRONG <header> nên dính cùng logo/menu khi cuộn.
   Bấm vào → nhảy tới phần chứng nhận.
   ========================================================== */
.trust-strip{display:block;overflow:hidden;position:relative;
  background:linear-gradient(90deg,var(--dark) 0%,#26603f 50%,var(--dark) 100%)}
/* làm mờ hai mép cho mượt */
.trust-strip::before,.trust-strip::after{content:"";position:absolute;top:0;bottom:0;width:26px;z-index:2;pointer-events:none}
.trust-strip::before{left:0;background:linear-gradient(90deg,var(--dark),transparent)}
.trust-strip::after{right:0;background:linear-gradient(270deg,var(--dark),transparent)}
/* Mỗi nửa track = 3 bộ huy hiệu (~2550px) để phủ kín cả màn hình rộng, tránh hở khoảng trắng
   khi lặp. Thời lượng 70s tương ứng ~36px/giây — đổi số này nếu muốn chạy nhanh/chậm hơn. */
.trust-track{display:flex;width:max-content;animation:trustScroll 70s linear infinite}
.trust-item{display:inline-flex;align-items:center;gap:7px;padding:9px 15px;
  color:#EAF6EE;font-family:var(--sans);font-size:13.5px;font-weight:700;
  letter-spacing:.03em;white-space:nowrap}
.trust-item svg{width:16px;height:16px;flex:0 0 auto;color:var(--honey-lt)}
.trust-item.dot{padding:9px 0;color:var(--honey);font-size:15px}
@keyframes trustScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
/* tiếng Ả Rập chạy ngược chiều cho đúng hướng đọc */
[dir="rtl"] .trust-track{animation-name:trustScrollRtl}
@keyframes trustScrollRtl{from{transform:translateX(0)}to{transform:translateX(50%)}}
/* trên mobile thu gọn lại một chút cho đỡ chiếm chỗ */
@media(max-width:760px){
  .trust-item{padding:8px 13px;font-size:12.5px}
  .trust-item svg{width:15px;height:15px}
}
/* tôn trọng thiết lập giảm chuyển động của người dùng */
@media (prefers-reduced-motion:reduce){
  .trust-track{animation:none;width:100%;overflow-x:auto;justify-content:space-around}
}

/* nút hamburger — chỉ hiện trên mobile */
.menu-btn{display:none;width:46px;height:46px;border:1px solid var(--line);background:#fff;
  border-radius:14px;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  cursor:pointer;padding:0;flex:0 0 auto}
.menu-btn span{display:block;width:20px;height:2px;background:var(--dark);border-radius:2px;
  transition:transform .3s,opacity .2s}
body.menu-open .menu-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.menu-open .menu-btn span:nth-child(2){opacity:0}
body.menu-open .menu-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* menu mobile toàn màn hình — kiểu app */
.mobile-menu{position:fixed;inset:0;z-index:55;background:linear-gradient(160deg,var(--dark),var(--dark-2));
  display:flex;flex-direction:column;justify-content:center;padding:90px 28px env(safe-area-inset-bottom) 28px;
  opacity:0;visibility:hidden;transform:translateY(-12px);transition:opacity .28s,transform .28s,visibility .28s}
body.menu-open .mobile-menu{opacity:1;visibility:visible;transform:none}
.mobile-menu a{display:flex;align-items:center;justify-content:space-between;color:#fff;
  font-family:var(--serif);font-size:26px;padding:18px 4px;border-bottom:1px solid rgba(255,255,255,.14)}
.mobile-menu a::after{content:"→";color:var(--honey-lt);font-size:20px}
.mobile-menu .mm-foot{margin-top:28px;color:#9fc4ac;font-size:14px}
.mobile-menu .mm-foot a{display:inline;border:0;font-family:var(--sans);font-size:15px;
  color:var(--honey-lt);padding:0}
.mobile-menu .mm-foot a::after{content:""}

/* ---------- HERO ---------- */
.hero{background:linear-gradient(160deg,var(--cream) 0%,#fff 60%);padding:0;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:40px;
  min-height:calc(100vh - 69px)}
.hero-txt{padding:60px 0}
.hero h1{font-size:clamp(38px,6vw,72px);line-height:1.05;margin-bottom:22px}
.hero h1 em{font-style:italic;color:var(--honey)}
.hero .sub{font-size:20px;color:#3f3f3f;max-width:480px;margin-bottom:28px}
.badges{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:32px}
.badge{border:1px solid var(--green-lt);color:var(--dark);border-radius:999px;padding:8px 16px;
  font-size:14px;font-weight:600;letter-spacing:.04em}
.cta{display:inline-flex;align-items:center;gap:10px;background:var(--honey);color:#3a2c00;
  font-weight:600;padding:16px 32px;border-radius:999px;font-size:17px;
  box-shadow:0 10px 26px rgba(242,179,26,.32);transition:transform .2s}
.cta:hover{transform:translateY(-2px)}
.hero-img{position:relative;height:100%;min-height:520px}
.hero-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  border-bottom-left-radius:120px}

/* ---------- SPLIT ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .col-img{order:2}
.col-img img{border-radius:14px;box-shadow:0 20px 50px rgba(30,74,51,.14);width:100%;object-fit:cover}
/* ⚠️ BẢO HIỂM: chặn ảnh DỌC kéo cột cao vống lên (vd founder.jpg 975×1600).
   Ảnh nào cần cao hơn thì đặt height inline — sẽ ghi đè max-height này. */
.col-img img{max-height:520px}

/* ---------- CARDS ---------- */
.cards{display:grid;gap:22px}
.cards.c4{grid-template-columns:repeat(4,1fr)}
.cards.c3{grid-template-columns:repeat(3,1fr)}
.cards.c2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:30px 26px;
  transition:transform .25s,box-shadow .25s,background .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(30,74,51,.10)}
.card .ic{width:46px;height:46px;margin-bottom:18px;color:var(--green)}
.card h3{font-size:21px;margin-bottom:10px}
.card p{font-size:17px;color:#4a4a4a;margin:0}
.num{font-family:var(--serif);font-size:16px;font-weight:700;color:#C68A08;
  letter-spacing:.1em;margin-bottom:12px}

/* ---------- FACTS / PILLARS ---------- */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.fact{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.fact .k{font-size:13px;color:#6a6a6a;text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
.fact .v{font-weight:600;color:var(--dark);font-size:17px}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:26px}
.pillar{text-align:center;padding:22px 14px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.pillar .ic{width:38px;height:38px;margin:0 auto 12px;color:var(--honey)}
.pillar b{display:block;color:var(--dark);font-size:17px;margin-bottom:5px}
.pillar span{font-size:15px;color:#555;line-height:1.6;display:block}

/* ---------- JAR CALLOUTS ---------- */
.jar-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
/* Ảnh hũ: phải thấy TRỌN hũ (section này giải thích gioăng/nắp/chống UV)
   → dùng contain, không cắt. Nền kem nhạt cho phần thừa hai bên. */
.jar-wrap .col-img img{height:auto;max-height:none;aspect-ratio:3/4;object-fit:cover}
.callouts{list-style:none;padding:0;margin:0;display:grid;gap:18px}
.callouts li{display:flex;gap:16px;align-items:flex-start}
.callouts .dot{flex:0 0 auto;width:40px;height:40px;border-radius:50%;background:var(--cream);
  border:1px solid var(--honey-lt);display:flex;align-items:center;justify-content:center;color:var(--honey)}
.callouts b{color:var(--dark);font-size:18px}
.callouts p{font-size:16px;color:#4a4a4a;margin:3px 0 0}

/* ---------- REGIONS ---------- */
.regions{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:10px}
.region h4{color:#3F8C39;font-size:18px;margin-bottom:8px;font-family:var(--sans);
  font-weight:700;text-transform:uppercase;letter-spacing:.05em}
.region ul{list-style:none;padding:0;margin:0}
.region li{padding:8px 0;border-bottom:1px dashed var(--line);font-size:17px;color:#3f3f3f}
.flavors{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:34px}
.flavor{background:#fff;border-left:3px solid var(--honey);border-radius:8px;padding:14px 18px;
  box-shadow:0 6px 18px rgba(0,0,0,.04)}
.flavor b{color:var(--dark);font-size:18px}
.flavor span{color:#4a4a4a;font-size:16px}

/* ---------- PRODUCTS ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:14px}
.prod{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;
  transition:transform .25s,box-shadow .25s}
.prod:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(30,74,51,.12)}
/* Khung sản phẩm VUÔNG + contain: không cắt mất sản phẩm (yêu cầu KH 18/07/2026) */
.prod .ph{aspect-ratio:1/1;overflow:hidden}
.prod .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.prod:hover .ph img{transform:scale(1.05)}
.prod .bd{padding:22px}
.prod .tag{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#C68A08}
.prod h3{font-size:21px;margin:6px 0 8px}
.prod p{font-size:16px;color:#4a4a4a;margin:0}
.prod.hero-prod{border:2px solid var(--honey)}

/* ---------- STEPS ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:24px}
.step{text-align:center}
.step .n{width:54px;height:54px;border-radius:50%;background:var(--green);color:#fff;
  font-family:var(--serif);font-weight:700;font-size:22px;display:flex;align-items:center;
  justify-content:center;margin:0 auto 14px;box-shadow:0 8px 20px rgba(95,175,88,.35)}
.step b{display:block;color:var(--dark);font-size:17px;margin-bottom:4px}
.step span{font-size:15px;color:#555;line-height:1.6;display:block}

/* ---------- GALLERY / CERT ---------- */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.gal img{width:100%;height:220px;object-fit:cover;border-radius:12px;transition:transform .4s}
.gal a:hover img{transform:scale(1.04)}
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
/* Thẻ chứng nhận/kiểm nghiệm: ảnh TRÀN SÁT MÉP thẻ (giống thẻ sản phẩm),
   chữ nằm dưới — không bọc ảnh trong khung có đệm nữa. */
.cert{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  padding:0 0 18px;text-align:center}
/* Giấy tờ phải thấy trọn, không được cắt → contain trên nền nhạt */
.cert img{border-radius:0;width:100%;height:auto;aspect-ratio:3/4;display:block;
  object-fit:cover;object-position:top center;margin-bottom:16px}
.cert b{color:var(--dark);font-size:19px;font-family:var(--serif);display:block;padding:0 16px}
.cert span{display:block;font-size:15px;color:#555;margin-top:5px;line-height:1.6;padding:0 16px}

/* ---------- TIMELINE ---------- */
.tl{position:relative;margin-top:20px}
.tl::before{content:"";position:absolute;left:26px;top:8px;bottom:8px;width:2px;background:var(--green-lt)}
.tl-item{position:relative;padding:0 0 40px 76px}
.tl-item .yr{position:absolute;left:0;top:-4px;width:54px;height:54px;border-radius:50%;background:#fff;
  border:2px solid var(--honey);color:var(--dark);font-family:var(--serif);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center}
.tl-item h3{font-size:23px;margin-bottom:6px}
.tl-item .budget{display:inline-block;margin-top:8px;background:var(--cream);border:1px solid var(--honey-lt);
  color:#5c4600;font-size:15px;font-weight:600;padding:6px 14px;border-radius:999px}

/* ---------- COMMIT ---------- */
.commit{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:10px}
.commit .item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.commit .ic{width:40px;height:40px;color:var(--green);margin-bottom:12px}
.commit b{color:var(--dark);display:block;margin-bottom:6px;font-size:18px}
.commit span{font-size:16px;color:#4a4a4a;line-height:1.65;display:block}

/* ---------- FOOTER ---------- */
footer{background:var(--dark-2);color:#dfeee4;padding:70px 0 34px}
footer h3{color:#fff;font-size:30px;margin-bottom:10px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:start}
.contact-list{list-style:none;padding:0;margin:16px 0 0}
.contact-list li{padding:9px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:17px;
  display:flex;gap:10px}
.contact-list .lb{color:#a5d4b6;min-width:104px;flex:0 0 auto}
.foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:15px;color:#b3d4c0}
.slogan-gold{color:var(--honey-lt);font-style:italic;font-family:var(--serif)}

/* ==========================================================
   NÚT LIÊN HỆ NỔI (gọi · Zalo) + nút lên đầu trang
   Bám theo nội dung khi cuộn (position:fixed)
   ========================================================== */
.fab-stack{position:fixed;right:16px;bottom:calc(18px + env(safe-area-inset-bottom));z-index:48;
  display:flex;flex-direction:column;gap:12px;align-items:center}
.fab{width:54px;height:54px;border-radius:50%;border:0;cursor:pointer;display:flex;
  align-items:center;justify-content:center;color:#fff;text-decoration:none;
  box-shadow:0 8px 22px rgba(0,0,0,.26);transition:transform .2s,box-shadow .2s;position:relative}
.fab:hover{transform:scale(1.08);box-shadow:0 12px 28px rgba(0,0,0,.32)}
.fab-call{background:#22A45D}
.fab-zalo{background:#0068FF;font-family:var(--sans);font-weight:700;font-size:15px;letter-spacing:.01em}
.fab-top{background:var(--dark);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s,transform .25s,visibility .25s}
.fab-top.show{opacity:1;visibility:visible;transform:none}
/* vòng sóng nhấp nháy quanh nút gọi để dễ thấy */
.fab-call::before{content:"";position:absolute;inset:0;border-radius:50%;
  border:2px solid #22A45D;animation:fabPulse 2.2s ease-out infinite}
@keyframes fabPulse{0%{transform:scale(1);opacity:.75}100%{transform:scale(1.7);opacity:0}}
@media (prefers-reduced-motion:reduce){.fab-call::before{animation:none;opacity:0}}

/* ==========================================================
   THANH ĐIỀU HƯỚNG DƯỚI CÙNG — kiểu ứng dụng (chỉ hiện trên mobile)
   ========================================================== */
.bottom-nav{display:none;position:fixed;left:0;right:0;bottom:0;z-index:52;
  background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-top:1px solid var(--line);
  padding:8px 4px calc(8px + env(safe-area-inset-bottom));
  grid-template-columns:repeat(5,1fr);gap:2px;box-shadow:0 -6px 24px rgba(0,0,0,.09)}
.bottom-nav a,.bottom-nav button{display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:4px;background:none;border:0;cursor:pointer;padding:6px 2px;
  color:#5a5a5a;font-family:var(--sans);font-size:11.5px;font-weight:600;line-height:1.15;
  text-align:center;border-radius:12px;transition:color .2s,background .2s}
.bottom-nav svg{width:23px;height:23px;flex:0 0 auto}
.bottom-nav a:active,.bottom-nav button:active{background:var(--green-bg)}
.bottom-nav .bn-accent{color:var(--green)}
body.menu-open .bottom-nav{z-index:52}

/* ==========================================================
   CHỌN NGÔN NGỮ (4 thứ tiếng)
   ========================================================== */
.lang-wrap{position:relative}
.lang-btn{display:flex;align-items:center;gap:7px;border:1px solid var(--green);background:#fff;
  color:var(--dark);border-radius:999px;padding:8px 13px;font-family:var(--sans);font-size:14px;
  font-weight:600;cursor:pointer;white-space:nowrap}
.lang-btn svg{width:17px;height:17px;flex:0 0 auto}
.lang-btn .chev{transition:transform .25s}
body.lang-open .lang-btn .chev{transform:rotate(180deg)}
.lang-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:190px;background:#fff;
  border:1px solid var(--line);border-radius:14px;box-shadow:0 16px 40px rgba(30,74,51,.18);
  padding:6px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s,transform .2s,visibility .2s;z-index:70}
body.lang-open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu a{display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 13px;border-radius:10px;font-size:16px;color:#444;font-weight:500}
.lang-menu a:hover{background:var(--green-bg);color:var(--dark)}
.lang-menu a.active{background:var(--cream);color:var(--dark);font-weight:700}
.lang-menu a.active::after{content:"✓";color:var(--green);font-weight:700}
[dir="rtl"] .lang-menu{right:auto;left:0}

/* ---------- HIỆU ỨNG XUẤT HIỆN ----------
   QUAN TRỌNG: chỉ ẩn khi JavaScript chạy được (thẻ <html> có class "js").
   Nếu JS bị chặn/lỗi, nội dung vẫn hiển thị bình thường — không bao giờ trắng trang. */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media(max-width:1080px){
  .cards.c4{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:960px){
  .nav-links{display:none}
  .menu-btn{display:flex}
  /* thanh điều hướng dưới cùng kiểu app */
  .bottom-nav{display:grid}
  body{padding-bottom:78px}          /* chừa chỗ cho thanh dưới */
  .mobile-menu{padding-bottom:98px}
  /* nút gọi/Zalo nâng lên trên thanh điều hướng */
  .fab-stack{right:14px;bottom:calc(92px + env(safe-area-inset-bottom));gap:10px}
  .fab{width:50px;height:50px}
  .fab-zalo{font-size:14px}
  .cards.c3{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr);gap:22px}
  .regions{grid-template-columns:1fr 1fr}
  .commit{grid-template-columns:1fr 1fr}
  footer .cols{grid-template-columns:1fr;gap:26px}
}
@media(max-width:860px){
  .split{grid-template-columns:1fr;gap:30px}
  .split.rev .col-img{order:0}
  .jar-wrap{grid-template-columns:1fr;gap:30px}
  .cert-grid{grid-template-columns:1fr 1fr}
}

/* ----- MOBILE: tối ưu kiểu app ----- */
@media(max-width:760px){
  :root{--pad-sec:58px}
  .wrap{padding:0 20px}
  .sec-head{margin-bottom:30px}
  h2{font-size:28px !important}
  h3{font-size:20px !important}
  .lede{font-size:18px}
  p{font-size:17px}
  .eyebrow{font-size:12px;letter-spacing:.14em;margin-bottom:10px}

  /* hero gọn lại, không chiếm trọn màn */
  .hero-grid{grid-template-columns:1fr;min-height:auto;gap:0}
  .hero-img{order:-1;min-height:auto;height:290px}
  .hero-img img{position:relative;height:290px;border-radius:0 0 28px 28px}
  .hero-txt{padding:30px 0 46px}
  .hero h1{font-size:40px;margin-bottom:16px}
  .hero .sub{font-size:18px;margin-bottom:22px}
  .badge{font-size:13px;padding:7px 14px}
  .cta{width:100%;justify-content:center;padding:17px 24px;font-size:17px}

  .cards{gap:14px}
  .cards.c2,.cards.c3,.cards.c4{grid-template-columns:1fr}
  .card{padding:24px 20px;border-radius:14px}
  .prod-grid{grid-template-columns:1fr;gap:14px}
  .facts{grid-template-columns:1fr 1fr;gap:10px}
  .fact{padding:12px 14px}
  .pillars{grid-template-columns:1fr 1fr;gap:10px}
  .pillar{padding:18px 10px}
  .regions{grid-template-columns:1fr;gap:6px}
  .region{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
  .sec-dark .region,.sec-green .region{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14)}
  .flavors{grid-template-columns:1fr;margin-top:20px}
  .steps{grid-template-columns:1fr;gap:8px;text-align:left}
  .step{display:flex;align-items:center;gap:16px;text-align:left;background:#fff;
    border:1px solid var(--line);border-radius:14px;padding:14px 16px}
  .sec-green .step{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2)}
  .step .n{margin:0;width:42px;height:42px;font-size:18px;flex:0 0 auto}
  .step b{margin-bottom:2px}
  .gal{grid-template-columns:1fr 1fr;gap:8px}
  .gal img{height:135px;border-radius:10px}
  .cert-grid{grid-template-columns:1fr;gap:14px}
  .cert img{height:auto;max-height:none}   /* giữ khung 3:4 sát viền như desktop */
  .commit{grid-template-columns:1fr;gap:12px}
  .commit .item{display:flex;gap:14px;align-items:flex-start;padding:18px}
  .commit .ic{margin-bottom:0;flex:0 0 auto;width:34px;height:34px}
  .tl::before{left:18px}
  .tl-item{padding:0 0 30px 58px}
  .tl-item .yr{width:38px;height:38px;font-size:12px}
  .tl-item h3{font-size:18px}
  .col-img img{border-radius:12px;max-height:340px}
  .jar-wrap .col-img img{height:auto}
  .contact-list li{flex-direction:column;gap:2px}
  .contact-list .lb{min-width:0;font-size:13px;text-transform:uppercase;letter-spacing:.06em}
  .foot-bottom{flex-direction:column;gap:8px}
  footer{padding:52px 0 28px}
  footer h3{font-size:26px}
}
@media(max-width:400px){
  .brand .txt b{font-size:17px}
  .brand .txt span{font-size:9px;letter-spacing:.3em}
  .logo{width:34px;height:44px}
  .facts{grid-template-columns:1fr}
  .mobile-menu a{font-size:22px;padding:15px 4px}
  .bottom-nav a,.bottom-nav button{font-size:10.5px}
  .bottom-nav svg{width:21px;height:21px}
  .lang-btn{padding:8px 10px}
  .lang-btn .lang-name{display:none}
}

/* ==========================================================
   TIẾNG Ả RẬP — bố cục phải sang trái (RTL)
   Áp dụng khi thẻ <html dir="rtl">
   ========================================================== */
[dir="rtl"]{--serif:"Amiri",Georgia,serif;--sans:"Tajawal",system-ui,sans-serif}
[dir="rtl"] body{line-height:1.9}
[dir="rtl"] .eyebrow{letter-spacing:0}
[dir="rtl"] .hero-img img{border-bottom-left-radius:0;border-bottom-right-radius:120px}
[dir="rtl"] .flavor{border-left:0;border-right:3px solid var(--honey)}
[dir="rtl"] .tl::before{left:auto;right:26px}
[dir="rtl"] .tl-item{padding:0 76px 40px 0}
[dir="rtl"] .tl-item .yr{left:auto;right:0}
[dir="rtl"] .contact-list .lb{text-align:right}
[dir="rtl"] .fab-stack{right:auto;left:16px}
[dir="rtl"] .mobile-menu a::after{content:"←"}
[dir="rtl"] .cta svg,[dir="rtl"] .nav-links{transform:none}
[dir="rtl"] .cta svg{transform:scaleX(-1)}
[dir="rtl"] .split.rev .col-img{order:0}
@media(max-width:760px){
  [dir="rtl"] .hero-img img{border-radius:0 0 28px 28px}
  [dir="rtl"] .tl::before{right:18px}
  [dir="rtl"] .tl-item{padding:0 58px 30px 0}
}
@media(max-width:960px){
  [dir="rtl"] .fab-stack{left:14px;right:auto}
}

/* ---------- ẢNH HIỂN THỊ FULL TỈ LỆ (không cắt) ---------- */
/* Bộ sản phẩm tổng: thấy trọn cả dàn sản phẩm */
.img-full{height:auto !important;max-height:none !important;object-fit:contain !important}
/* Lưới ảnh quy trình: 4 ảnh, tỉ lệ đồng đều nhưng không cắt mất người/vật */
.proc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:44px}
.proc-grid img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;
  box-shadow:0 14px 34px rgba(0,0,0,.18)}
/* Giữ 2 ảnh/dòng cả trên điện thoại — để 1 cột thì mục này dài lê thê */
@media(max-width:760px){.proc-grid{gap:10px;margin-top:26px}
  .proc-grid img{border-radius:10px}}

/* ---------- PHIẾU KIỂM NGHIỆM: khung 3:4 đứng ----------
   Chỉ áp cho .cert-grid.lab — mục Chứng nhận vẫn dùng khung 400px như cũ. */
.cert-grid.lab .cert img{aspect-ratio:3/4;object-fit:cover;object-position:top center}