/* ============================================
   KAROFI VŨNG TÀU - DESIGN SYSTEM
   Tone: Xanh biển nhạt (light ocean blue)
   ============================================ */

:root{
  --primary:#0ea5e9;
  --primary-dark:#0369a1;
  --primary-darker:#0c4a6e;
  --primary-light:#e0f4fd;
  --primary-lighter:#f2fafd;
  --accent:#38bdf8;
  --accent-soft:#bae6fd;
  --sale:#f97316;
  --success:#16a34a;
  --text:#1e293b;
  --text-soft:#5b6b7d;
  --text-faint:#8898a9;
  --white:#fdfefe;
  --on-accent:#ffffff;
  --border:#d9edf7;
  --bg:#f6fbfe;
  --shadow-sm:0 2px 8px rgba(3,105,161,.07);
  --shadow-md:0 14px 36px rgba(3,105,161,.11);
  --shadow-lg:0 24px 64px rgba(3,105,161,.15);
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:22px;
  --container:1240px;
}

*{margin:0;padding:0;box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  font-family:'Be Vietnam Pro','Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

::selection{background:var(--accent-soft);color:var(--primary-darker);}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;}

img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,textarea,select{font-family:inherit;font-size:1rem;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}

section{padding:64px 0;}
@media(max-width:768px){section{padding:40px 0;}}

.section-head{
  text-align:center;
  max-width:640px;
  margin:0 auto 40px;
}
.section-head .tag{
  display:inline-block;
  color:var(--primary-dark);
  background:var(--primary-light);
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.06em;
  text-transform:uppercase;
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:14px;
}
.section-head h2,
.section-head h1{
  font-size:2rem;
  font-weight:800;
  color:var(--primary-darker);
  margin-bottom:10px;
}
.section-head p{color:var(--text-soft);font-size:1rem;}
.section-head.left{text-align:left;margin:0 0 32px;}

.bg-tint{background:var(--bg);}
.bg-gradient{
  background:linear-gradient(180deg,var(--primary-lighter) 0%, var(--white) 100%);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:999px;
  font-weight:700;
  font-size:.95rem;
  transition:transform .25s cubic-bezier(.16,1,.3,1),background-color .25s ease,box-shadow .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary-dark);
  color:var(--on-accent);
  box-shadow:var(--shadow-sm);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn:active{transform:translateY(1px) scale(.985);}
.btn-outline{
  background:var(--white);
  color:var(--primary-dark);
  border:1.5px solid var(--primary);
}
.btn-outline:hover{background:var(--primary-light);}
.btn-ghost{
  background:var(--primary-light);
  color:var(--primary-dark);
}
.btn-ghost:hover{background:var(--accent-soft);}
.btn-sale{background:var(--sale);color:var(--on-accent);}
.btn-block{width:100%;}
.btn-sm{padding:9px 18px;font-size:.85rem;}

/* ============================================
   TOP BAR
   ============================================ */
.topbar{
  display:none;
  background:var(--primary-darker);
  color:#eaf7ff;
  font-size:.82rem;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:8px;
  padding-bottom:8px;
  gap:12px;
  flex-wrap:wrap;
}
.topbar-left{display:flex;gap:22px;flex-wrap:wrap;}
.topbar-left span{display:inline-flex;align-items:center;gap:6px;}
.topbar-right{display:flex;gap:18px;}
.topbar-right a{opacity:.9;}
.topbar-right a:hover{opacity:1;text-decoration:underline;}

/* ============================================
   HEADER / NAV
   ============================================ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--white);
  border-bottom:1px solid var(--border);
  box-shadow:0 6px 24px rgba(14,116,144,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 0;
  gap:24px;
}
.logo{display:flex;align-items:center;flex-shrink:0;}
.logo img{width:auto;height:64px;max-width:180px;object-fit:contain;}
.brand-location{display:none;}

.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav > ul{display:flex;align-items:center;gap:2px;}
.main-nav > ul > li{position:relative;}
.main-nav > ul > li > a{
  display:flex;align-items:center;gap:4px;
  padding:12px 14px;
  font-weight:600;
  font-size:.95rem;
  color:var(--text);
  border-radius:8px;
  transition:background-color .2s ease,color .2s ease;
}
.main-nav > ul > li > a:hover,
.main-nav > ul > li.active > a{color:var(--primary-dark);background:var(--primary-lighter);}
.caret{font-size:.65em;opacity:.7;}

.dropdown{
  position:absolute;top:100%;left:0;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-md);
  min-width:230px;
  padding:8px;
  opacity:0;
  visibility:hidden;
  transform:translateY(6px);
  transition:opacity .2s ease,transform .2s cubic-bezier(.16,1,.3,1),visibility .2s ease;
  z-index:50;
}
.main-nav li:hover > .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown li a{
  display:block;padding:10px 12px;border-radius:6px;font-size:.9rem;font-weight:500;
}
.dropdown li a:hover{background:var(--primary-light);color:var(--primary-dark);}

.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.hotline-box{
  display:flex;align-items:center;gap:10px;
  padding:8px 16px;
  background:var(--primary-light);
  border-radius:999px;
}
.hotline-box .ico{
  width:34px;height:34px;border-radius:50%;
  background:var(--primary);color:var(--on-accent);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.hotline-box .ico img{width:19px;height:19px;}
.hotline-box .lbl{font-size:.72rem;color:var(--text-soft);line-height:1.1;}
.hotline-box .num{font-weight:800;color:var(--primary-darker);font-size:.95rem;}

.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-lighter);
  font-size:1.1rem;
  flex-shrink:0;
}
.icon-btn:hover{background:var(--primary-light);}

.burger{display:none;font-size:1.4rem;color:var(--primary-darker);}

@media(max-width:1080px){
  .hotline-box .lbl,.hotline-box .num{display:none;}
  .hotline-box{padding:10px;}
}
@media(max-width:900px){
  .main-nav{
    position:fixed;top:0;left:-320px;height:100vh;width:300px;
    background:var(--white);
    flex-direction:column;align-items:flex-start;
    padding:80px 16px 20px;
    box-shadow:var(--shadow-lg);
    transition:left .25s ease;
    overflow-y:auto;
    z-index:200;
  }
  .main-nav.open{left:0;}
  .main-nav > ul{flex-direction:column;align-items:flex-start;width:100%;gap:0;}
  .main-nav > ul > li{width:100%;}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;display:none;margin-left:10px;}
  .main-nav li.mob-open > .dropdown{display:block;}
  .burger{display:block;}
  .nav-overlay{display:none;position:fixed;inset:0;background:rgba(12,74,110,.4);z-index:150;}
  .nav-overlay.show{display:block;}
}
@media(max-width:600px){
  .header-inner{gap:10px;padding:10px 0;}
  .logo img{width:auto;height:44px;max-width:128px;}
  .header-actions .hotline-box{display:none;}
  .header-actions .btn-sm{padding:9px 14px;font-size:.78rem;}
}

/* ============================================
   HERO SLIDER
   ============================================ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--primary-darker);
}
.hero-slides{position:relative;width:100%;aspect-ratio:1920/650;min-height:260px;max-height:650px;}
.hero-slide{
  position:absolute;inset:0;
  display:flex;align-items:center;
  opacity:0;visibility:hidden;
  transition:opacity .7s cubic-bezier(.16,1,.3,1);
}
.hero-slide.active{opacity:1;visibility:visible;}
.hero-slide img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.hero-slide .overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(3,55,80,.78) 0%,rgba(3,55,80,.35) 55%,rgba(3,55,80,.1) 100%);
}
.hero-content{position:relative;z-index:2;color:var(--on-accent);max-width:560px;padding:0 20px;margin:0 auto;width:100%;}
.hero-content .eyebrow{
  display:inline-block;background:rgba(255,255,255,.15);
  padding:6px 14px;border-radius:999px;font-size:.8rem;font-weight:700;margin-bottom:16px;letter-spacing:.03em;
}
.hero-content h1{font-size:2.5rem;font-weight:800;line-height:1.2;margin-bottom:14px;}
.hero-content p{font-size:1.05rem;opacity:.92;margin-bottom:26px;max-width:460px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

.hero-dots{
  position:absolute;bottom:20px;left:50%;transform:translateX(-50%);
  display:flex;gap:8px;z-index:3;
}
.hero-dots button{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.45);transition:.2s;}
.hero-dots button.active{background:var(--on-accent);width:26px;border-radius:6px;}

.hero-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.15);
  color:var(--on-accent);
  display:flex;align-items:center;justify-content:center;
  font-size:1.2rem;z-index:3;
  transition:background .2s;
}
.hero-arrow:hover{background:rgba(255,255,255,.3);}
.hero-arrow.prev{left:20px;}
.hero-arrow.next{right:20px;}

@media(max-width:768px){
  .hero-slides{height:260px;min-height:260px;aspect-ratio:auto;}
  .hero-slide img.bg{object-position:center;}
  .hero-content h1{font-size:1.7rem;}
  .hero-arrow{display:none;}
}

/* Trust strip */
.trust-strip{
  background:var(--white);
  border-bottom:1px solid var(--border);
}
.trust-strip .container{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:22px 20px;
}
.trust-item{display:flex;align-items:center;gap:12px;}
.trust-item .ico{
  width:44px;height:44px;border-radius:12px;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:800;color:var(--primary-dark);flex-shrink:0;
}
.trust-item .ico img{width:23px;height:23px;}
.trust-item strong{display:block;font-size:.9rem;color:var(--primary-darker);}
.trust-item span{font-size:.8rem;color:var(--text-soft);}
@media(max-width:900px){.trust-strip .container{grid-template-columns:repeat(2,1fr);}}

/* ============================================
   CATEGORY GRID
   ============================================ */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:18px;
}
.cat-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:26px 16px;
  text-align:center;
  transition:transform .25s cubic-bezier(.16,1,.3,1),box-shadow .25s ease,border-color .25s ease;
}
.cat-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:var(--accent-soft);
}
.cat-card .ico{
  width:100%;height:118px;margin:0 auto 14px;
  background:var(--white);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
}
.cat-card .ico img{width:100%;height:100%;object-fit:contain;}
.cat-card h3{font-size:.95rem;font-weight:700;color:var(--text);margin-bottom:4px;}
.cat-card span{font-size:.78rem;color:var(--text-faint);}
@media(max-width:900px){.cat-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:600px){.cat-grid{grid-template-columns:repeat(2,1fr);}}

/* ============================================
   PROMO BANNER STRIP  (khu vực treo banner quảng cáo)
   ============================================ */
.promo-strip{
  display:grid;grid-template-columns:1fr 1fr;gap:22px;
}
.promo-banner{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:180px;
  display:flex;align-items:center;
  box-shadow:var(--shadow-sm);
}
.promo-banner img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;}
.promo-banner .overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(3,55,80,.65),rgba(3,55,80,.15));}
.promo-banner .content{position:relative;z-index:2;color:var(--on-accent);padding:28px 30px;max-width:320px;}
.promo-banner .content .tag{
  background:var(--sale);display:inline-block;padding:4px 12px;border-radius:999px;
  font-size:.72rem;font-weight:800;margin-bottom:10px;text-transform:uppercase;
}
.promo-banner .content h3{font-size:1.35rem;font-weight:800;margin-bottom:6px;}
.promo-banner .content p{font-size:.88rem;opacity:.9;margin-bottom:16px;}
@media(max-width:768px){.promo-strip{grid-template-columns:1fr;}}

/* Single full banner (used on inner pages) */
.banner-full{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:150px;
  display:flex;align-items:center;box-shadow:var(--shadow-sm);margin-bottom:36px;
}
.banner-full img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.banner-full .overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,55,80,.75),rgba(3,55,80,.1));}
.banner-full .content{position:relative;z-index:2;color:var(--on-accent);padding:26px 34px;}
.banner-full .content h3{font-size:1.3rem;font-weight:800;margin-bottom:6px;}
.banner-full .content p{opacity:.9;font-size:.9rem;}

/* ============================================
   PRODUCT TABS / FILTER PILLS
   ============================================ */
.filter-pills{
  display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:36px;
}
.filter-pills button{
  padding:10px 20px;border-radius:999px;font-weight:600;font-size:.88rem;
  background:var(--primary-lighter);color:var(--text-soft);
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.filter-pills button:hover{background:var(--primary-light);}
.filter-pills button:active{transform:scale(.97);}
.filter-pills button.active{
  background:var(--primary-dark);color:var(--on-accent);box-shadow:var(--shadow-sm);
}

/* ============================================
   PRODUCT CARD & GRID
   ============================================ */
.product-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.product-grid.cols-3{grid-template-columns:repeat(3,1fr);}
@media(max-width:1080px){.product-grid,.product-grid.cols-3{grid-template-columns:repeat(3,1fr);}}
@media(max-width:768px){.product-grid,.product-grid.cols-3{grid-template-columns:repeat(2,1fr);}}
@media(max-width:480px){.product-grid,.product-grid.cols-3{grid-template-columns:1fr;}}

.product-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .28s cubic-bezier(.16,1,.3,1),box-shadow .28s ease,border-color .28s ease;
  position:relative;
}
.product-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--accent-soft);}
.product-thumb{
  position:relative;
  background:var(--white);
  aspect-ratio:1/1;
  display:flex;align-items:center;justify-content:center;
  padding:14px;
  overflow:hidden;
}
.product-thumb img{width:100%;height:100%;object-fit:contain;border-radius:10px;transition:transform .3s;}
.product-card:hover .product-thumb img{transform:scale(1.06);}
.product-spec-preview{
  position:absolute;inset:14px;border-radius:10px;padding:20px;
  display:flex;flex-direction:column;justify-content:flex-end;gap:10px;
  color:var(--on-accent);background:linear-gradient(180deg,rgba(3,74,105,.18),rgba(3,74,105,.88));
  backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px);
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .28s ease,transform .32s cubic-bezier(.16,1,.3,1);
}
.product-spec-preview__title{font-size:.76rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em;}
.product-spec-preview__list{display:flex;flex-direction:column;gap:8px;}
.product-spec-preview__list > span{position:relative;padding-left:16px;font-size:.82rem;line-height:1.45;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;}
.product-spec-preview__list > span::before{content:"✓";position:absolute;left:0;top:0;color:#8ee8ff;font-weight:800;}
.product-card:hover .product-spec-preview,.product-thumb:focus .product-spec-preview{opacity:1;transform:translateY(0);}
.product-thumb:focus-visible{outline:3px solid var(--accent-soft);outline-offset:-3px;}
.badge{
  position:absolute;top:12px;left:12px;
  font-size:.7rem;font-weight:800;padding:5px 10px;border-radius:6px;color:var(--on-accent);
  text-transform:uppercase;letter-spacing:.02em;z-index:2;
}
.badge.new{background:var(--success);}
.badge.hot{background:var(--sale);}
.badge.sale{background:#e11d48;}
.product-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1;gap:8px;}
.product-cat{font-size:.72rem;color:var(--primary-dark);font-weight:700;text-transform:uppercase;letter-spacing:.03em;}
.product-name{font-size:1rem;font-weight:700;color:var(--text);line-height:1.35;min-height:2.6em;}
.product-name:hover{color:var(--primary-dark);}
.product-feats{list-style:none;display:flex;flex-direction:column;gap:4px;margin:2px 0;}
.product-feats li{font-size:.8rem;color:var(--text-soft);padding-left:16px;position:relative;}
.product-feats li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:800;}
.product-price{margin-top:auto;display:flex;align-items:baseline;gap:8px;padding-top:6px;}
.product-price .now{font-size:1.15rem;font-weight:800;color:var(--primary-dark);}
.product-price .old{font-size:.85rem;color:var(--text-faint);text-decoration:line-through;}
.product-actions{display:flex;gap:8px;margin-top:10px;}
.product-actions .btn{flex:1;padding:10px 12px;font-size:.82rem;}

/* ============================================
   WHY CHOOSE US
   ============================================ */
.why-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:18px;}
.why-card{
  text-align:left;padding:28px 24px;border-radius:var(--radius-md);
  background:var(--white);border:1px solid var(--border);
}
.why-card .ico{
  width:52px;height:52px;margin:0 0 22px;border-radius:12px;
  background:var(--primary-light);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:.74rem;font-weight:800;letter-spacing:.03em;
}
.why-card h3{font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--primary-darker);}
.why-card p{font-size:.85rem;color:var(--text-soft);}
.why-card-featured{grid-row:span 3;display:flex;flex-direction:column;justify-content:flex-end;min-height:320px;background:var(--primary-darker);border-color:var(--primary-darker);}
.why-card-featured .ico{background:rgba(255,255,255,.12);color:var(--on-accent);}
.why-card-featured h3{color:var(--on-accent);font-size:1.3rem;}
.why-card-featured p{color:#d7edf8;}
@media(max-width:900px){.why-grid{grid-template-columns:repeat(2,1fr);}.why-card-featured{grid-row:auto;min-height:220px;}}
@media(max-width:600px){.why-grid{grid-template-columns:1fr;}.why-card-featured{min-height:auto;}}

/* ============================================
   TESTIMONIALS
   ============================================ */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.review-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:24px;
}
.review-card .stars{color:#f59e0b;margin-bottom:12px;letter-spacing:2px;}
.review-card p{font-size:.9rem;color:var(--text-soft);margin-bottom:16px;}
.review-author{display:flex;align-items:center;gap:12px;}
.review-author .avatar{
  width:42px;height:42px;border-radius:50%;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--primary-dark);
}
.review-author strong{display:block;font-size:.88rem;}
.review-author span{font-size:.76rem;color:var(--text-faint);}
@media(max-width:900px){.review-grid{grid-template-columns:1fr;}}

/* ============================================
   KNOWLEDGE / ARTICLES
   ============================================ */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.article-card{
  border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--white);
}
.article-thumb{display:block;aspect-ratio:16/10;background:var(--primary-lighter);overflow:hidden;}
.article-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s;}
.article-card:hover .article-thumb img{transform:scale(1.05);}
.article-body{padding:18px;}
.article-body .date{font-size:.75rem;color:var(--text-faint);margin-bottom:6px;}
.article-body h3{font-size:.98rem;font-weight:700;margin-bottom:8px;line-height:1.4;}
.article-body h3 a:hover{color:var(--primary-dark);}
.article-body p{font-size:.85rem;color:var(--text-soft);}
.article-more{display:inline-block;margin-top:14px;color:var(--primary-dark);font-size:.82rem;font-weight:700;}
.article-more:hover{text-decoration:underline;}
@media(max-width:900px){.article-grid{grid-template-columns:1fr;}}

/* Article listing and detail */
.article-listing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.article-page{max-width:860px;margin:0 auto;}
.article-header{text-align:center;margin-bottom:30px;}
.article-header .tag{display:inline-block;color:var(--primary-dark);background:var(--primary-light);font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:6px 16px;border-radius:999px;margin-bottom:14px;}
.article-header h1{font-size:2.45rem;line-height:1.2;color:var(--primary-darker);text-wrap:balance;}
.article-meta{margin-top:12px;color:var(--text-faint);font-size:.85rem;}
.article-hero{width:100%;max-height:480px;object-fit:cover;border-radius:var(--radius-lg);margin-bottom:30px;background:var(--primary-lighter);}
.article-lead{font-size:1.05rem;line-height:1.85;color:var(--text-soft);padding:22px 26px;border-left:4px solid var(--primary);background:var(--primary-lighter);border-radius:0 var(--radius-md) var(--radius-md) 0;margin-bottom:30px;}
.article-content .article-section{padding:0;margin:0 0 30px;}
.article-section h2{font-size:1.45rem;color:var(--primary-darker);margin-bottom:12px;}
.article-section p{line-height:1.85;color:var(--text-soft);margin-bottom:12px;}
.article-section ul{list-style:none;display:grid;gap:9px;margin:12px 0;}
.article-section li{position:relative;padding-left:24px;color:var(--text-soft);line-height:1.7;}
.article-section li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:800;}
.article-cta{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:28px;background:var(--primary-darker);color:var(--on-accent);border-radius:var(--radius-lg);margin:38px 0 56px;}
.article-cta h3{font-size:1.2rem;margin-bottom:4px;}
.article-cta p{font-size:.88rem;opacity:.82;}
.related-articles{padding-top:0;}
@media(max-width:900px){.article-listing-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){
  .article-listing-grid{grid-template-columns:1fr;}
  .article-header h1{font-size:1.8rem;}
  .article-lead{padding:18px 20px;}
}

/* ============================================
   NEWSLETTER / CTA STRIP
   ============================================ */
.cta-strip{
  background:var(--primary-darker);
  border-radius:var(--radius-lg);
  color:var(--on-accent);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  flex-wrap:wrap;
}
.cta-strip h3{font-size:1.4rem;font-weight:800;margin-bottom:6px;}
.cta-strip p{opacity:.88;font-size:.92rem;}
.cta-strip .btn-primary{background:var(--white);color:var(--primary-dark);}
.cta-strip .btn-primary:hover{background:var(--primary-lighter);}

/* ============================================
   FOOTER
   ============================================ */
.site-footer{background:var(--primary-darker);color:#cfe9f7;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:40px;}
.footer-col h4{color:var(--on-accent);font-size:1rem;font-weight:700;margin-bottom:18px;}
.footer-col p{font-size:.85rem;line-height:1.8;opacity:.85;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:.85rem;opacity:.85;}
.footer-col ul li a:hover{opacity:1;text-decoration:underline;}
.footer-logo{display:inline-flex;align-items:flex-start;margin-bottom:16px;padding:10px 14px;background:var(--white);border-radius:var(--radius-md);}
.footer-logo img{width:170px;height:auto;max-height:52px;object-fit:contain;}
.footer-logo .brand-location{font-size:.62rem;font-weight:800;color:var(--on-accent);letter-spacing:.28em;padding-left:2px;}
.social-row{display:flex;gap:10px;margin-top:16px;}
.social-row a,.social-row .social-link{
  width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:center;font-size:.95rem;
}
.social-row a:hover{background:var(--primary);transform:translateY(-2px);}
.social-row img{width:17px;height:17px;}
.social-row .is-empty{opacity:.42;cursor:default;}
.newsletter-form{display:flex;margin-top:14px;border-radius:999px;overflow:hidden;background:rgba(255,255,255,.1);}
.newsletter-form input{flex:1;background:none;border:none;padding:12px 16px;color:var(--on-accent);font-size:.85rem;}
.newsletter-form input::placeholder{color:#a9d3e8;}
.newsletter-form button{background:var(--primary);color:var(--on-accent);padding:0 20px;font-weight:700;font-size:.85rem;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:.8rem;opacity:.75;
}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr;}}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb{
  background:var(--primary-lighter);
  padding:16px 0;
  font-size:.85rem;
  color:var(--text-soft);
}
.breadcrumb a:hover{color:var(--primary-dark);}
.breadcrumb .sep{margin:0 6px;opacity:.5;}
.page-title-bar{padding:28px 0 8px;}
.page-title-bar h1{font-size:1.7rem;font-weight:800;color:var(--primary-darker);}

/* ============================================
   PRODUCT LISTING LAYOUT (sidebar + grid)
   ============================================ */
.listing-layout{display:grid;grid-template-columns:270px 1fr;gap:30px;align-items:start;}
.filter-sidebar{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:22px;position:sticky;top:96px;
}
.filter-sidebar h3{font-size:.95rem;font-weight:800;color:var(--primary-darker);margin-bottom:6px;}
.filter-group{border-top:1px solid var(--border);padding:16px 0;}
.filter-group:first-of-type{border-top:none;padding-top:14px;}
.filter-group h4{font-size:.85rem;font-weight:700;margin-bottom:12px;}
.filter-group label{
  display:flex;align-items:center;gap:8px;
  font-size:.85rem;color:var(--text-soft);margin-bottom:10px;cursor:pointer;
}
.filter-group input[type="checkbox"]{width:16px;height:16px;accent-color:var(--primary);}
.clear-filter{width:100%;margin-top:6px;}

.listing-toolbar{
  display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;flex-wrap:wrap;gap:12px;
}
.product-search{margin-bottom:26px;}
.product-search > label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.product-search__field{
  width:min(100%,560px);height:52px;display:grid;grid-template-columns:1fr 54px;
  margin:0 auto;
  border:1px solid var(--border);border-radius:999px;background:var(--white);
  box-shadow:0 8px 24px rgba(3,74,105,.06);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.product-search__field:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--accent-soft);}
.product-search__field input{min-width:0;border:0;background:transparent;padding:0 6px 0 22px;font:inherit;color:var(--text);outline:0;}
.product-search__field input::placeholder{color:#6b7f89;opacity:1;}
.product-search__field button{display:flex;align-items:center;justify-content:center;background:transparent;border-left:1px solid var(--border);}
.product-search__field button:hover{background:var(--primary-lighter);}
.product-search__field button:active{transform:scale(.96);}
.product-search__field button img{width:25px;height:25px;}
.listing-toolbar .count{font-size:.88rem;color:var(--text-soft);}
.listing-toolbar select{
  border:1px solid var(--border);border-radius:8px;padding:9px 14px;font-size:.85rem;color:var(--text);
  background:var(--white);
}
.empty-state{text-align:center;padding:60px 20px;color:var(--text-soft);}

@media(max-width:900px){
  .listing-layout{grid-template-columns:1fr;}
  .filter-sidebar{position:static;}
}
@media(max-width:600px){.product-search__field{width:100%;height:50px;}}
@media(prefers-reduced-transparency:reduce){.product-spec-preview{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(3,74,105,.96);}}
@media(prefers-reduced-motion:reduce){.product-spec-preview{transition:none;transform:none;}}

/* ============================================
   PRODUCT DETAIL PAGE
   ============================================ */
.pd-layout{display:grid;grid-template-columns:1fr 1fr;gap:44px;margin-bottom:50px;}
.pd-gallery-main{
  background:var(--primary-lighter);border-radius:var(--radius-lg);
  aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;padding:40px;margin-bottom:14px;position:relative;overflow:hidden;
}
.pd-gallery-main img{max-height:100%;max-width:100%;object-fit:contain;transition:opacity .36s cubic-bezier(.16,1,.3,1),transform .36s cubic-bezier(.16,1,.3,1);transform:scale(1);opacity:1;}
.pd-gallery-main img.is-switching{opacity:.12;transform:scale(.975);}
.pd-gallery-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.92);box-shadow:0 8px 24px rgba(3,74,105,.12);font-size:1.6rem;line-height:1;color:var(--primary-dark);}
.pd-gallery-arrow:hover{background:var(--white);color:var(--primary);}
.pd-gallery-arrow.prev{left:14px;}
.pd-gallery-arrow.next{right:14px;}
.pd-thumbs{display:flex;gap:10px;overflow-x:auto;padding:2px 2px 8px;scrollbar-width:thin;}
.pd-thumbs button{
  width:70px;height:70px;flex:0 0 70px;border-radius:10px;background:var(--primary-lighter);
  border:2px solid transparent;display:flex;align-items:center;justify-content:center;padding:8px;
}
.pd-thumbs button.active{border-color:var(--primary);}
.pd-thumbs button{transition:border-color .25s ease,transform .25s cubic-bezier(.16,1,.3,1),background-color .25s ease;}
.pd-thumbs button:hover{transform:translateY(-2px);background:var(--white);}
.pd-thumbs button:active{transform:scale(.98);}
.pd-thumbs img{width:100%;height:100%;object-fit:contain;}

.pd-info .product-cat{margin-bottom:8px;display:block;}
.pd-info h1{font-size:1.6rem;font-weight:800;color:var(--text);margin-bottom:10px;line-height:1.3;}
.pd-rating{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:.85rem;color:var(--text-soft);}
.pd-rating .stars{color:#f59e0b;}
.pd-price-box{
  background:var(--primary-lighter);border-radius:var(--radius-md);padding:18px 20px;margin-bottom:20px;
}
.pd-price-box .now{font-size:1.8rem;font-weight:800;color:var(--primary-dark);}
.pd-price-box .old{font-size:1rem;color:var(--text-faint);text-decoration:line-through;margin-left:10px;}
.pd-price-box .save{display:inline-block;background:#e11d48;color:var(--on-accent);font-size:.72rem;font-weight:800;padding:3px 9px;border-radius:6px;margin-left:10px;}
.pd-feats{margin-bottom:22px;}
.pd-feats li{font-size:.92rem;color:var(--text-soft);padding:6px 0 6px 24px;position:relative;}
.pd-feats li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:800;}
.pd-qty{display:flex;align-items:center;gap:14px;margin-bottom:20px;}
.qty-control{display:flex;align-items:center;border:1px solid var(--border);border-radius:999px;overflow:hidden;}
.qty-control button{width:38px;height:38px;font-size:1.1rem;color:var(--primary-dark);}
.qty-control button:hover{background:var(--primary-light);}
.qty-control span{width:40px;text-align:center;font-weight:700;}
.pd-actions{display:flex;gap:12px;margin-bottom:24px;flex-wrap:wrap;}
.pd-actions .btn{flex:1;min-width:160px;padding:15px 20px;}
.pd-support{
  display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px solid var(--border);padding-top:20px;
}
.pd-support .item{display:flex;align-items:center;gap:10px;min-height:64px;padding:11px 12px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--primary-lighter);font-size:.8rem;font-weight:600;color:var(--primary-darker);}
.pd-support .item .ico{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--white);flex-shrink:0;}
.pd-support .item .ico img{width:20px;height:20px;}

.pd-tabs{border-bottom:2px solid var(--border);display:flex;gap:8px;margin-bottom:28px;flex-wrap:wrap;}
.pd-tabs button{padding:14px 20px;font-weight:700;color:var(--text-soft);border-bottom:3px solid transparent;margin-bottom:-2px;}
.pd-tabs button.active{color:var(--primary-dark);border-color:var(--primary);}
.pd-tab-panel{display:none;}
.pd-tab-panel.active{display:block;}
.pd-tab-panel p{color:var(--text-soft);margin-bottom:14px;line-height:1.8;}
.pd-desc-summary{font-size:1.02rem;line-height:1.8;color:var(--text);padding:20px 22px;margin-bottom:30px;border-left:4px solid var(--primary);border-radius:0 var(--radius-md) var(--radius-md) 0;background:var(--primary-lighter);}
.pd-detail-content{max-width:920px;margin:0 auto;color:var(--text-soft);line-height:1.8;}
.pd-detail-content h2,.pd-detail-content h3,.pd-detail-content h4{color:var(--primary-darker);line-height:1.35;margin:34px 0 14px;}
.pd-detail-content h2{font-size:1.45rem;}
.pd-detail-content h3{font-size:1.2rem;}
.pd-detail-content h4{font-size:1.05rem;}
.pd-detail-content p{margin-bottom:14px;}
.pd-detail-content ul,.pd-detail-content ol{margin:12px 0 20px;padding-left:24px;}
.pd-detail-content li{margin:7px 0;}
.pd-detail-content img{display:block;max-width:100%;height:auto;margin:24px auto;border-radius:var(--radius-lg);background:var(--primary-lighter);}
.pd-detail-content table{width:100%;border-collapse:collapse;margin:20px 0;}
.pd-detail-content td{padding:12px;border-bottom:1px solid var(--border);vertical-align:top;}
.pd-detail-content a,.pd-source-note a{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
.pd-source-note{max-width:920px;margin:30px auto 18px;padding-top:18px;border-top:1px solid var(--border);font-size:.82rem;}
.spec-table{width:100%;border-collapse:collapse;}
.spec-table tr{border-bottom:1px solid var(--border);}
.spec-table td{padding:12px 14px;font-size:.9rem;}
.spec-table td:first-child{color:var(--text-soft);width:220px;background:var(--bg);font-weight:600;}

@media(max-width:900px){.pd-layout{grid-template-columns:1fr;}.pd-gallery-main{padding:24px;}.pd-support{grid-template-columns:1fr;}.spec-table td:first-child{width:42%;}.pd-detail-content h2{font-size:1.25rem;}}
@media(prefers-reduced-motion:reduce){.pd-gallery-main img,.pd-thumbs button{transition:none;}.pd-thumbs{scroll-behavior:auto;}}

/* ============================================
   ABOUT PAGE
   ============================================ */
.about-hero{
  background:linear-gradient(120deg,var(--primary-light),var(--primary-lighter));
  border-radius:var(--radius-lg);
  padding:50px 44px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;
  margin-bottom:50px;
}
.about-hero h1{font-size:1.9rem;font-weight:800;color:var(--primary-darker);margin-bottom:14px;}
.about-hero p{color:var(--text-soft);margin-bottom:10px;}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px;}
.stat-row .stat strong{display:block;font-size:1.6rem;font-weight:800;color:var(--primary-dark);}
.stat-row .stat span{font-size:.8rem;color:var(--text-soft);}
.about-hero-img{background:var(--white);border-radius:var(--radius-md);aspect-ratio:1/1;overflow:hidden;box-shadow:var(--shadow-md);}
.about-hero-img img{width:100%;height:100%;object-fit:cover;}

.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.timeline .step{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);padding:22px;position:relative;}
.timeline .step .yr{font-size:1.3rem;font-weight:800;color:var(--primary);margin-bottom:8px;}
.timeline .step h4{font-size:.92rem;font-weight:700;margin-bottom:6px;}
.timeline .step p{font-size:.82rem;color:var(--text-soft);}

.store-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.store-list-single{grid-template-columns:1fr;max-width:760px;margin:0 auto;}
.store-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;}
.store-card h4{font-weight:700;margin-bottom:8px;color:var(--primary-darker);}
.store-card p{font-size:.85rem;color:var(--text-soft);margin-bottom:4px;}
@media(max-width:900px){.about-hero{grid-template-columns:1fr;}.timeline,.store-list{grid-template-columns:repeat(2,1fr);}}
@media(max-width:600px){.timeline,.store-list{grid-template-columns:1fr;}}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;}
.contact-cards{display:flex;flex-direction:column;gap:16px;margin-bottom:24px;}
.contact-card{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px;
}
.contact-card .ico{
  width:44px;height:44px;border-radius:12px;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;font-size:.66rem;font-weight:800;color:var(--primary-dark);flex-shrink:0;
}
.contact-card .ico img{width:22px;height:22px;}
.contact-card h4{font-size:.92rem;font-weight:700;margin-bottom:4px;}
.contact-card p{font-size:.85rem;color:var(--text-soft);}
.map-placeholder{
  background:var(--primary-lighter);border:1px dashed var(--accent-soft);border-radius:var(--radius-md);
  aspect-ratio:16/10;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-faint);gap:8px;
}
.why-card .ico img{width:24px;height:24px;}

/* Floating Zalo support */
.zalo-live-chat{
  position:fixed;right:22px;bottom:22px;z-index:90;
  display:flex;align-items:center;gap:10px;
  min-height:56px;padding:7px 16px 7px 7px;
  border:1px solid rgba(255,255,255,.72);border-radius:999px;
  background:var(--primary-dark);color:var(--on-accent);
  box-shadow:0 16px 40px rgba(3,105,161,.24);
  transition:transform .25s cubic-bezier(.16,1,.3,1),box-shadow .25s ease;
}
.zalo-live-chat:hover{transform:translateY(-3px);box-shadow:0 20px 46px rgba(3,105,161,.3);}
.zalo-live-chat:active{transform:translateY(1px) scale(.985);}
.zalo-live-chat__icon{width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--primary);}
.zalo-live-chat__icon img{width:23px;height:23px;}
.zalo-live-chat__label{display:flex;flex-direction:column;line-height:1.2;}
.zalo-live-chat__label strong{font-size:.82rem;}
.zalo-live-chat__label small{font-size:.7rem;opacity:.84;margin-top:3px;}

@media(max-width:720px){
  .pd-support{grid-template-columns:1fr;}
  .zalo-live-chat{right:14px;bottom:14px;padding:7px;}
  .zalo-live-chat__label{display:none;}
}
.contact-form{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.form-group label{font-size:.85rem;font-weight:600;color:var(--text);}
.form-group input,.form-group textarea,.form-group select{
  border:1px solid var(--border);border-radius:10px;padding:12px 14px;background:var(--bg);
}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:2px solid var(--accent-soft);border-color:var(--primary);}
.form-note{font-size:.78rem;color:var(--text-faint);margin-top:4px;}
.form-success{
  display:none;background:#ecfdf5;border:1px solid #a7f3d0;color:#047857;
  padding:14px 16px;border-radius:10px;font-size:.88rem;margin-bottom:16px;
}
.form-success.show{display:block;}
@media(max-width:900px){.contact-layout{grid-template-columns:1fr;}.form-row{grid-template-columns:1fr;}}

/* ============================================
   PROMOTIONS PAGE
   ============================================ */
.promo-page-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.promo-card{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);background:var(--white);
}
.promo-card-img{position:relative;aspect-ratio:16/8;}
.promo-card-img img{width:100%;height:100%;object-fit:cover;}
.promo-card-img .tag{position:absolute;top:14px;left:14px;background:var(--sale);color:var(--on-accent);font-size:.72rem;font-weight:800;padding:5px 12px;border-radius:999px;text-transform:uppercase;}
.promo-card-body{padding:20px 22px;}
.promo-card-body h3{font-size:1.1rem;font-weight:800;color:var(--primary-darker);margin-bottom:8px;}
.promo-card-body p{font-size:.88rem;color:var(--text-soft);margin-bottom:14px;}
.promo-card-body .expiry{font-size:.78rem;color:var(--text-faint);margin-bottom:14px;}
@media(max-width:768px){.promo-page-grid{grid-template-columns:1fr;}}

/* Featured products stay equal-sized and centered for every filter state. */
#featuredGrid{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:22px;
}
#featuredGrid .product-card{
  flex:0 1 calc((100% - 88px)/5);
  min-width:210px;
  max-width:280px;
}
@media(max-width:768px){
  #featuredGrid .product-card{flex-basis:calc(50% - 11px);min-width:0;max-width:none;}
}
@media(max-width:480px){
  #featuredGrid .product-card{flex-basis:100%;}
}

/* Restrained entry motion communicates hierarchy without hijacking scroll. */
@media(prefers-reduced-motion:no-preference){
  .reveal-ready{opacity:0;transform:translateY(18px);}
  .reveal-ready.reveal-visible{opacity:1;transform:translateY(0);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1);}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;}
}

/* ============================================
   UTILS
   ============================================ */
.mt-0{margin-top:0;}
.text-center{text-align:center;}
.load-more-wrap{text-align:center;margin-top:32px;}