/* ==========================================================================
   Vật Tư Nước Pro — Main Stylesheet
   Font: Be Vietnam Pro (Google Fonts)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Variables
   -------------------------------------------------------------------------- */
:root {
  /* === Palette — khớp với demo === */
  --clr-primary:      #0077ff;
  --clr-primary-dark: #005fcc;
  --clr-primary-light:#e8f2ff;
  --clr-navy:         #07182c;   /* demo --navy */
  --clr-navy-mid:     #0c3564;   /* hero gradient mid */
  --clr-aqua:         #00d4c8;   /* demo --aqua */
  --clr-aqua-light:   #e0fbf9;
  --clr-white:        #ffffff;
  --clr-bg:           #f4f9fb;   /* demo --bg */
  --clr-bg-alt:       #eef7fa;
  --clr-surface:      #ffffff;
  --clr-text:         #102235;   /* demo --ink */
  --clr-text-muted:   #607487;   /* demo --muted */
  --clr-border:       rgba(16,34,53,.1); /* demo --line */
  --clr-success:      #0fba7c;
  --clr-warning:      #f59e0b;
  --clr-danger:       #ef4444;
  --clr-orange:       #ff8a2a;   /* demo --orange */

  /* === Border-radius — khớp với demo === */
  --radius-sm:  10px;
  --radius:     26px;   /* demo --radius */
  --radius-lg:  32px;
  --radius-xl:  40px;
  --radius-full:9999px;

  /* === Shadows === */
  --shadow-sm:   0 1px 3px rgba(0,0,0,.06);
  --shadow:      0 24px 70px rgba(7,24,44,.12); /* demo --shadow */
  --shadow-lg:   0 8px 32px rgba(0,119,255,.18);
  --shadow-card: 0 16px 44px rgba(7,24,44,.07);

  --transition: .25s ease;

  --container-max: 1240px;
  --container-px:  24px;

  --header-h:  72px;
  --topbar-h:  40px;
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Be Vietnam Pro',system-ui,sans-serif;
  font-size:15px;line-height:1.65;color:var(--clr-text);
  background:
    radial-gradient(circle at 8% 6%, rgba(0,212,200,.14), transparent 28%),
    radial-gradient(circle at 90% 4%, rgba(0,119,255,.14), transparent 30%),
    linear-gradient(180deg,#f7fcff 0%,#eef7fa 46%,#f8fbfc 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img,video{max-width:100%;height:auto;display:block}
a{color:var(--clr-primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--clr-primary-dark)}
button{cursor:pointer;border:none;background:none;font-family:inherit}
input,select,textarea{font-family:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.25;font-weight:700;color:var(--clr-text)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* --------------------------------------------------------------------------
   3. Layout Utilities
   -------------------------------------------------------------------------- */
.vtn-container{width:100%;max-width:var(--container-max);margin-inline:auto;padding-inline:var(--container-px)}
.vtn-page-wrapper{min-height:100vh;display:flex;flex-direction:column}
.vtn-page-content{flex:1}
.vtn-section{padding:72px 0}
.vtn-section-header{text-align:center;margin-bottom:48px}
.vtn-section-title{font-size:clamp(1.5rem,3vw,2rem);color:var(--clr-navy);margin-bottom:12px}
.vtn-section-desc{color:var(--clr-text-muted);font-size:.95rem;max-width:600px;margin-inline:auto}
.vtn-section-link{display:inline-flex;align-items:center;gap:6px;color:var(--clr-primary);font-weight:600;font-size:.9rem;margin-top:12px;transition:gap var(--transition)}
.vtn-section-link:hover{gap:10px}

/* --------------------------------------------------------------------------
   4. Topbar
   -------------------------------------------------------------------------- */
.vtn-topbar{background:var(--clr-navy);color:#fff;font-size:.8rem;height:var(--topbar-h);display:flex;align-items:center;z-index:100}
.vtn-topbar__inner{display:flex;justify-content:space-between;align-items:center;width:100%}
.vtn-topbar__text{opacity:.9}
.vtn-topbar__right{display:flex;gap:20px;align-items:center}
.vtn-topbar__link{color:#fff;opacity:.85;display:flex;align-items:center;gap:5px;transition:opacity var(--transition)}
.vtn-topbar__link:hover{opacity:1;color:#fff}

/* --------------------------------------------------------------------------
   5. Header
   -------------------------------------------------------------------------- */
.vtn-header{
  background:rgba(244,249,251,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--clr-border);
  position:sticky;top:0;z-index:500;
  transition:box-shadow var(--transition),background var(--transition);
}
.vtn-header.scrolled,.vtn-header.is-scrolled{
  background:rgba(244,249,251,.96);
  box-shadow:0 4px 24px rgba(7,24,44,.08);
}
.vtn-header__inner{display:flex;align-items:center;gap:16px;height:var(--header-h)}

/* Logo */
.vtn-header__logo{flex-shrink:0;display:flex;align-items:center;gap:10px;text-decoration:none}
.vtn-header__logo img{height:58px;width:auto;max-width:260px;object-fit:contain}
/* SVG icon fallback — blue rounded square matching demo */
.vtn-header__logo-icon{
  width:42px;height:42px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--clr-primary) 0%,#0057cc 100%);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  box-shadow:0 4px 14px rgba(0,119,255,.35);
}
.vtn-header__logo-text{display:flex;flex-direction:column;gap:0}
.vtn-header__logo-name{font-size:1.05rem;font-weight:800;color:var(--clr-navy);line-height:1;letter-spacing:-.3px}
.vtn-header__logo-slogan{font-size:.62rem;color:var(--clr-text-muted);font-weight:400;margin-top:2px}

/* Search — fills remaining space between logo and actions */
.vtn-header__search{flex:1}
.vtn-search-form{position:relative;display:flex}
.vtn-search-form__input{width:100%;height:44px;padding:0 48px 0 16px;border:2px solid var(--clr-border);border-radius:var(--radius-full);font-size:.88rem;transition:border-color var(--transition),box-shadow var(--transition);background:var(--clr-bg);outline:none}
.vtn-search-form__input:focus{border-color:var(--clr-primary);box-shadow:0 0 0 3px rgba(0,119,255,.15);background:#fff}
.vtn-search-form__btn{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:var(--radius-full);background:var(--clr-primary);color:#fff;display:flex;align-items:center;justify-content:center;transition:background var(--transition)}
.vtn-search-form__btn:hover{background:var(--clr-primary-dark)}

/* Actions */
.vtn-header__actions{display:flex;align-items:center;gap:8px;flex-shrink:0}

/* "Tra mã hàng" — ghost/outline pill button matching demo */
.vtn-header__track-btn{
  display:inline-flex;align-items:center;
  padding:0 18px;height:40px;
  border-radius:var(--radius-full);
  border:1.5px solid rgba(16,34,53,.18);
  background:#fff;
  color:var(--clr-navy);
  font-size:.85rem;font-weight:600;
  text-decoration:none;white-space:nowrap;
  transition:border-color var(--transition),box-shadow var(--transition),background var(--transition);
}
.vtn-header__track-btn:hover{
  border-color:var(--clr-primary);
  color:var(--clr-primary);
  box-shadow:0 4px 16px rgba(0,119,255,.12);
}

/* "Nhận báo giá" — primary solid pill button matching demo */
.vtn-header__quote-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:0 22px;height:40px;
  background:var(--clr-primary);
  color:#fff;
  border-radius:var(--radius-full);
  font-size:.875rem;font-weight:700;
  text-decoration:none;white-space:nowrap;
  position:relative;
  transition:background var(--transition),box-shadow var(--transition),transform var(--transition);
  box-shadow:0 4px 16px rgba(0,119,255,.3);
}
.vtn-header__quote-btn:hover{background:var(--clr-primary-dark);transform:translateY(-1px);color:#fff;box-shadow:0 6px 20px rgba(0,119,255,.4)}
.vtn-quote-count{position:absolute;top:-6px;right:-6px;min-width:18px;height:18px;background:var(--clr-danger);border-radius:50%;font-size:.68rem;font-weight:700;color:#fff;display:flex;align-items:center;justify-content:center;padding:0 3px}

/* Mobile toggle */
.vtn-header__menu-toggle{display:none;flex-direction:column;gap:5px;padding:6px;width:36px;height:36px;align-items:center;justify-content:center}
.vtn-header__menu-toggle span{display:block;width:22px;height:2px;background:var(--clr-text);border-radius:2px;transition:transform .3s,opacity .3s}
.vtn-header__menu-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.vtn-header__menu-toggle.active span:nth-child(2){opacity:0}
.vtn-header__menu-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* --------------------------------------------------------------------------
   6. Navigation
   -------------------------------------------------------------------------- */
/* ── Desktop nav: transparent glass bar, pill-link style (matching demo) ── */
.vtn-nav{background:rgba(244,249,251,.92);border-top:1px solid rgba(16,34,53,.05);border-bottom:1px solid rgba(16,34,53,.08);box-shadow:0 10px 28px rgba(7,24,44,.04)}
.vtn-nav .vtn-container{padding-block:0}
.vtn-nav__menu{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 0;flex-wrap:nowrap}
.vtn-nav__menu li{position:relative}
.vtn-nav__menu > li{display:flex;align-items:center;flex:0 0 auto}
.vtn-nav__menu > li > a{
  display:inline-flex;
  align-items:center;
  height:42px;
  padding:0 16px;
  border-radius:var(--radius-full);
  color:#102235;
  font-size:.86rem;
  font-weight:800;
  line-height:1.2;
  white-space:nowrap;
  transition:color var(--transition),background var(--transition),box-shadow var(--transition),transform var(--transition);
}
.vtn-nav__menu > li.menu-item-has-children > a{padding-right:32px}
.vtn-nav__menu > li > a:hover,
.vtn-nav__menu > li.current-menu-item > a,
.vtn-nav__menu > li.current-menu-ancestor > a{
  color:var(--clr-navy);
  background:#fff;
  box-shadow:0 10px 26px rgba(7,24,44,.08);
  transform:translateY(-1px);
}

/* Dropdown */
.vtn-nav__menu > li > .submenu-toggle{position:absolute;right:10px;top:50%;width:18px;height:18px;padding:0;display:grid;place-items:center;float:none;color:#8aa0b4;background:transparent;border:0;transform:translateY(-50%);transition:color var(--transition),transform var(--transition);pointer-events:none}
.vtn-nav__menu > li:hover > .submenu-toggle,.vtn-nav__menu > li:focus-within > .submenu-toggle{color:var(--clr-primary);transform:translateY(-50%) rotate(180deg)}
.vtn-nav__menu > li.menu-item-has-children::after{content:"";position:absolute;left:-12px;right:-12px;top:100%;height:16px;z-index:199}
.vtn-nav__menu .sub-menu{position:absolute;top:calc(100% + 10px);left:0;background:#fff;min-width:240px;border-radius:18px;box-shadow:0 22px 48px rgba(7,24,44,.14);padding:10px;display:block;z-index:200;border:1px solid rgba(16,34,53,.08);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(8px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease}
.vtn-nav__menu li:hover > .sub-menu,.vtn-nav__menu li:focus-within > .sub-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
.vtn-nav__menu .sub-menu::before{content:"";position:absolute;left:22px;top:-7px;width:14px;height:14px;background:#fff;border-left:1px solid rgba(16,34,53,.08);border-top:1px solid rgba(16,34,53,.08);transform:rotate(45deg)}
.vtn-nav__menu .sub-menu li a{display:block;padding:10px 12px;color:var(--clr-text);font-size:.86rem;font-weight:700;border-radius:12px;box-shadow:none;white-space:nowrap;transition:color var(--transition),background var(--transition),transform var(--transition)}
.vtn-nav__menu .sub-menu li a:hover{color:var(--clr-primary);background:linear-gradient(90deg,var(--clr-primary-light),#f3fbff);transform:translateX(3px)}
.vtn-nav__menu .sub-menu .sub-menu{top:0;left:100%}

/* Mobile overlay */
.vtn-mobile-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:490;display:none;opacity:0;transition:opacity var(--transition)}
.vtn-mobile-overlay.active{display:block;opacity:1}

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.vtn-hero{position:relative;background:linear-gradient(135deg,var(--clr-navy) 0%,#0057b7 50%,var(--clr-aqua) 100%);color:#fff;padding:80px 0 100px;overflow:hidden}
.vtn-hero__bg{position:absolute;inset:0;pointer-events:none}
.vtn-hero__shapes{position:absolute;inset:0}
.vtn-hero__shape{position:absolute;border-radius:50%;opacity:.08}
.vtn-hero__shape--1{width:400px;height:400px;background:#fff;top:-100px;right:-80px}
.vtn-hero__shape--2{width:250px;height:250px;background:var(--clr-aqua);bottom:-60px;left:10%}
.vtn-hero__shape--3{width:180px;height:180px;background:var(--clr-primary);top:30%;right:15%}
.vtn-hero__inner{position:relative;z-index:1}
.vtn-hero__content{max-width:720px}
.vtn-hero__badge{margin-bottom:20px}
.vtn-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:var(--radius-full);font-size:.78rem;font-weight:600}
.vtn-badge--light{background:rgba(255,255,255,.15);color:#fff;backdrop-filter:blur(4px)}
.vtn-badge--primary{background:var(--clr-primary-light);color:var(--clr-primary)}
.vtn-badge--sale{background:#fff3f3;color:var(--clr-danger);font-weight:700}
.vtn-hero__title{font-size:clamp(1.8rem,4.5vw,3rem);font-weight:800;line-height:1.18;margin-bottom:18px;letter-spacing:-.02em}
.vtn-hero__subtitle{font-size:1.05rem;opacity:.88;margin-bottom:36px;max-width:600px;line-height:1.7}

/* Hero Search */
.vtn-hero-search-form__inner{display:flex;align-items:center;background:#fff;border-radius:var(--radius-full);padding:6px 6px 6px 20px;box-shadow:0 8px 30px rgba(0,0,0,.2);gap:8px}
.vtn-hero-search-form__icon{flex-shrink:0;color:var(--clr-text-muted)}
.vtn-hero-search-form__input{flex:1;border:none;outline:none;font-size:.95rem;color:var(--clr-text);background:transparent}
.vtn-hero-search-form__btn{flex-shrink:0;padding:0 24px;height:42px;background:var(--clr-primary);color:#fff;border-radius:var(--radius-full);font-weight:600;font-size:.9rem;transition:background var(--transition)}
.vtn-hero-search-form__btn:hover{background:var(--clr-primary-dark)}
.vtn-hero-search-form__suggestions{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.vtn-hero-search-form__suggest-label{font-size:.8rem;opacity:.8}
.vtn-hero-search-form__tag{padding:4px 14px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);border-radius:var(--radius-full);font-size:.78rem;color:#fff;transition:background var(--transition)}
.vtn-hero-search-form__tag:hover{background:rgba(255,255,255,.25);color:#fff}

/* Hero CTAs */
.vtn-hero__ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* Hero Stats */
.vtn-hero__stats{display:flex;align-items:center;gap:0;margin-top:56px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-xl);padding:24px 36px;backdrop-filter:blur(4px);width:fit-content}
.vtn-hero__stat{text-align:center;padding:0 28px}
.vtn-hero__stat-num{display:block;font-size:1.8rem;font-weight:800;color:#fff;line-height:1}
.vtn-hero__stat-label{display:block;font-size:.78rem;opacity:.8;margin-top:4px}
.vtn-hero__stat-divider{width:1px;height:40px;background:rgba(255,255,255,.2)}

/* --------------------------------------------------------------------------
   8. Category Strip
   -------------------------------------------------------------------------- */
.vtn-cat-strip{background:#fff;border-bottom:1px solid var(--clr-border);padding:14px 0;overflow-x:auto}
.vtn-cat-strip__inner{display:flex;gap:8px;align-items:center}
.vtn-cat-strip__item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 16px;border-radius:var(--radius);background:var(--clr-bg);border:1px solid var(--clr-border);white-space:nowrap;transition:all var(--transition);flex-shrink:0}
.vtn-cat-strip__item:hover{background:var(--clr-primary-light);border-color:var(--clr-primary);color:var(--clr-primary)}
.vtn-cat-strip__emoji{font-size:1.3rem}
.vtn-cat-strip__name{font-size:.72rem;font-weight:600;color:var(--clr-text)}
.vtn-cat-strip__item:hover .vtn-cat-strip__name{color:var(--clr-primary)}

/* --------------------------------------------------------------------------
   9. Category Wall
   -------------------------------------------------------------------------- */
.vtn-catwall{background:var(--clr-bg)}
.vtn-catwall__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.vtn-catwall__item{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:box-shadow var(--transition),transform var(--transition)}
.vtn-catwall__item:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.vtn-catwall__card{display:flex;align-items:center;gap:16px;padding:20px;text-decoration:none;border-left:4px solid var(--cat-color,var(--clr-primary))}
.vtn-catwall__icon{width:56px;height:56px;border-radius:var(--radius);background:color-mix(in srgb,var(--cat-color,var(--clr-primary)) 12%,#fff);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--cat-color,var(--clr-primary))}
.vtn-catwall__info{flex:1;min-width:0}
.vtn-catwall__name{font-size:.95rem;font-weight:700;color:var(--clr-text);margin-bottom:3px}
.vtn-catwall__count{font-size:.78rem;color:var(--clr-text-muted)}
.vtn-catwall__arrow{color:var(--clr-text-muted);flex-shrink:0;transition:transform var(--transition)}
.vtn-catwall__card:hover .vtn-catwall__arrow{transform:translateX(4px);color:var(--cat-color,var(--clr-primary))}
.vtn-catwall__children{padding:0 20px 16px;display:flex;flex-wrap:wrap;gap:6px;border-top:1px solid var(--clr-border);padding-top:12px;margin-top:0}
.vtn-catwall__child{font-size:.75rem;color:var(--clr-text-muted);padding:3px 10px;border-radius:var(--radius-full);background:var(--clr-bg);border:1px solid var(--clr-border);transition:all var(--transition)}
.vtn-catwall__child:hover,.vtn-catwall__child--more{color:var(--clr-primary);background:var(--clr-primary-light);border-color:transparent}

/* --------------------------------------------------------------------------
   10. Product Card
   -------------------------------------------------------------------------- */
.vtn-product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.vtn-product-grid--4col{grid-template-columns:repeat(4,1fr)}
.vtn-product-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;transition:box-shadow var(--transition),transform var(--transition);position:relative}
.vtn-product-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.vtn-product-card__thumb{position:relative;aspect-ratio:1/1;overflow:hidden;background:var(--clr-bg)}
.vtn-product-card__thumb a{display:block;height:100%}
.vtn-product-card__thumb img,.vtn-product-card__thumb svg{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.vtn-product-card:hover .vtn-product-card__thumb img{transform:scale(1.05)}
.vtn-product-card__badges{position:absolute;top:10px;left:10px;display:flex;flex-direction:column;gap:4px}
.vtn-product-card__body{padding:16px;flex:1;display:flex;flex-direction:column;gap:8px}
.vtn-product-card__sku{font-size:.7rem;color:var(--clr-text-muted);font-family:monospace}
.vtn-product-card__title{font-size:.9rem;font-weight:700;color:var(--clr-text);line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vtn-product-card__title a{color:inherit;text-decoration:none}
.vtn-product-card__title a:hover{color:var(--clr-primary)}
.vtn-product-card__meta{display:flex;gap:8px;flex-wrap:wrap}
.vtn-tag{display:inline-block;padding:2px 8px;border-radius:var(--radius-full);background:var(--clr-aqua-light);color:var(--clr-aqua);font-size:.7rem;font-weight:600}
.vtn-product-card__price-row{display:flex;align-items:center;gap:8px;margin-top:auto;flex-wrap:wrap}
.vtn-price{font-size:1rem;font-weight:700;color:var(--clr-primary)}
.vtn-price--sale{color:var(--clr-danger)}
.vtn-price--old{text-decoration:line-through;color:var(--clr-text-muted);font-size:.82rem;font-weight:400}
.vtn-price--call{font-size:.9rem;color:var(--clr-text-muted)}
.vtn-product-card__actions{display:flex;gap:6px;margin-top:auto}
.vtn-product-card__actions .vtn-btn{flex:1;font-size:.78rem;padding:0 10px;height:34px}

/* Stock Badge */
.vtn-stock-badge{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;font-weight:600;padding:3px 10px;border-radius:var(--radius-full)}
.vtn-stock-badge--in{background:#f0fdf4;color:#16a34a}
.vtn-stock-badge--low{background:#fffbeb;color:#d97706}
.vtn-stock-badge--out{background:#fef2f2;color:#dc2626}

/* --------------------------------------------------------------------------
   11. Combo Section
   -------------------------------------------------------------------------- */
.vtn-combo-section{background:#fff}
.vtn-combo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.vtn-combo-grid--archive{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin-top:40px;margin-bottom:48px}
.vtn-combo-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid var(--clr-border);transition:box-shadow var(--transition),transform var(--transition)}
.vtn-combo-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.vtn-combo-card__thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--clr-bg)}
.vtn-combo-card__thumb img,.vtn-combo-card__thumb svg{width:100%;height:100%;object-fit:cover}
.vtn-combo-card__type{position:absolute;top:10px;right:10px;padding:4px 12px;background:var(--clr-primary);color:#fff;border-radius:var(--radius-full);font-size:.72rem;font-weight:600}
.vtn-combo-card__body{padding:18px;display:flex;flex-direction:column;gap:10px}
.vtn-combo-card__title{font-size:1rem;font-weight:700;color:var(--clr-text)}
.vtn-combo-card__title a{color:inherit}
.vtn-combo-card__title a:hover{color:var(--clr-primary)}
.vtn-combo-card__scale{font-size:.83rem;color:var(--clr-text-muted);display:flex;align-items:center;gap:5px}
.vtn-combo-card__meta{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.82rem;color:var(--clr-text-muted)}
.vtn-combo-card__price strong{color:var(--clr-primary)}
.vtn-combo-card__note{font-size:.82rem;color:var(--clr-text-muted);line-height:1.5;-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}
.vtn-combo-card__actions{display:flex;gap:8px;margin-top:auto}
.vtn-combo-card__actions .vtn-btn{flex:1}

/* --------------------------------------------------------------------------
   12. Process Section
   -------------------------------------------------------------------------- */
.vtn-process{background:linear-gradient(135deg,var(--clr-navy),#0057b7)}
.vtn-process .vtn-section-title,.vtn-process .vtn-section-desc{color:#fff}
.vtn-process .vtn-section-desc{opacity:.8}
.vtn-process__steps{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative}
.vtn-process__steps::before{content:'';position:absolute;top:36px;left:calc(12.5% + 16px);right:calc(12.5% + 16px);height:2px;background:rgba(255,255,255,.2);z-index:0}
.vtn-process__step{position:relative;z-index:1;text-align:center}
.vtn-process__step-icon{width:72px;height:72px;border-radius:var(--radius-xl);background:rgba(255,255,255,.12);border:2px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:#fff;backdrop-filter:blur(4px)}
.vtn-process__step-num{font-size:2rem;font-weight:900;color:rgba(255,255,255,.15);margin-bottom:8px}
.vtn-process__step-title{font-size:.95rem;font-weight:700;color:#fff;margin-bottom:8px}
.vtn-process__step-desc{font-size:.82rem;color:rgba(255,255,255,.75);line-height:1.6}
.vtn-process__cta{text-align:center;margin-top:48px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* --------------------------------------------------------------------------
   13. CTA Section
   -------------------------------------------------------------------------- */
.vtn-cta{position:relative;background:linear-gradient(135deg,var(--clr-primary),var(--clr-aqua));color:#fff;padding:72px 0;overflow:hidden}
.vtn-cta__bg{position:absolute;inset:0;pointer-events:none}
.vtn-cta__inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.vtn-cta__title{font-size:clamp(1.4rem,3vw,2rem);font-weight:800;margin-bottom:12px;color:#fff}
.vtn-cta__desc{opacity:.9;font-size:1rem}
.vtn-cta__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.vtn-cta__features{display:flex;flex-direction:column;gap:12px;background:rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:24px;border:1px solid rgba(255,255,255,.2);min-width:240px}
.vtn-cta__feature{display:flex;align-items:center;gap:10px;font-size:.9rem;font-weight:600}
.vtn-cta__feature svg{flex-shrink:0}

/* --------------------------------------------------------------------------
   14. Buttons
   -------------------------------------------------------------------------- */
.vtn-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 24px;height:44px;border-radius:var(--radius-full);font-weight:600;font-size:.9rem;cursor:pointer;transition:all var(--transition);border:2px solid transparent;text-decoration:none;white-space:nowrap}
.vtn-btn--sm{height:34px;padding:0 16px;font-size:.8rem}
.vtn-btn--lg{height:52px;padding:0 32px;font-size:1rem}
.vtn-btn--full{width:100%}
.vtn-btn--primary{background:var(--clr-primary);color:#fff;border-color:var(--clr-primary)}
.vtn-btn--primary:hover{background:var(--clr-primary-dark);border-color:var(--clr-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,119,255,.35)}
.vtn-btn--secondary{background:var(--clr-primary-light);color:var(--clr-primary);border-color:transparent}
.vtn-btn--secondary:hover{background:var(--clr-primary);color:#fff}
.vtn-btn--outline{background:transparent;color:var(--clr-primary);border-color:var(--clr-primary)}
.vtn-btn--outline:hover{background:var(--clr-primary);color:#fff}
.vtn-btn--outline-white{background:transparent;color:#fff;border-color:#fff}
.vtn-btn--outline-white:hover{background:rgba(255,255,255,.15);color:#fff}
.vtn-btn--zalo{background:#0068ff;color:#fff;border-color:#0068ff}
.vtn-btn--zalo:hover{background:#0057d9;border-color:#0057d9;color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,104,255,.35)}
.vtn-btn--white{background:#fff;color:var(--clr-primary);border-color:#fff}
.vtn-btn--white:hover{background:var(--clr-primary-light);color:var(--clr-primary-dark)}
.vtn-btn--zalo{background:#0068ff;color:#fff;border-color:#0068ff}
.vtn-btn--zalo:hover{background:#004fc4;color:#fff}

/* --------------------------------------------------------------------------
   15. Brands Strip
   -------------------------------------------------------------------------- */
.vtn-brands-strip{background:#fff;border-block:1px solid var(--clr-border);padding:16px 0}
.vtn-brands-strip .vtn-container{display:flex;align-items:center;gap:16px;overflow-x:auto}
.vtn-brands-strip__label{font-size:.8rem;color:var(--clr-text-muted);white-space:nowrap;font-weight:600}
.vtn-brands-strip__list{display:flex;gap:8px;flex-wrap:wrap}
.vtn-brands-strip__item{padding:6px 18px;border:1px solid var(--clr-border);border-radius:var(--radius-full);font-size:.82rem;color:var(--clr-text-muted);font-weight:600;transition:all var(--transition);white-space:nowrap}
.vtn-brands-strip__item:hover{color:var(--clr-primary);border-color:var(--clr-primary);background:var(--clr-primary-light)}

/* --------------------------------------------------------------------------
   16. Guide Cards
   -------------------------------------------------------------------------- */
.vtn-guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.vtn-guide-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:box-shadow var(--transition),transform var(--transition)}
.vtn-guide-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.vtn-guide-card__thumb-link{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--clr-bg)}
.vtn-guide-card__thumb-link img,.vtn-guide-card__thumb-link svg{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.vtn-guide-card:hover .vtn-guide-card__thumb-link img{transform:scale(1.05)}
.vtn-guide-card__body{padding:20px;display:flex;flex-direction:column;gap:10px}
.vtn-guide-card__topic{font-size:.72rem;font-weight:700;color:var(--clr-aqua);text-transform:uppercase;letter-spacing:.05em}
.vtn-guide-card__title{font-size:1rem;font-weight:700;color:var(--clr-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.35}
.vtn-guide-card__title a{color:inherit}
.vtn-guide-card__title a:hover{color:var(--clr-primary)}
.vtn-guide-card__excerpt{font-size:.83rem;color:var(--clr-text-muted);line-height:1.6;-webkit-line-clamp:2;display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}
.vtn-guide-card__footer{display:flex;justify-content:space-between;align-items:center;margin-top:auto}
.vtn-guide-card__footer time{font-size:.75rem;color:var(--clr-text-muted)}
.vtn-guide-card__link{font-size:.82rem;font-weight:600;color:var(--clr-primary)}

/* --------------------------------------------------------------------------
   17. Product Detail
   -------------------------------------------------------------------------- */
.vtn-product-detail{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;padding:40px 0}
.vtn-gallery{display:flex;flex-direction:column;gap:12px}
.vtn-gallery__main{border-radius:var(--radius-lg);overflow:hidden;background:var(--clr-bg);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;position:relative;cursor:zoom-in}
.vtn-gallery__main-img{width:100%;height:100%;object-fit:contain;transition:transform .35s ease;will-change:transform;transform-origin:center center}
.vtn-gallery__main:hover .vtn-gallery__main-img{transform:scale(2)}
.vtn-gallery__thumbs{display:flex;gap:8px;flex-wrap:wrap}
.vtn-gallery__thumb{width:72px;height:72px;border-radius:var(--radius-sm);overflow:hidden;cursor:pointer;border:2px solid var(--clr-border);transition:border-color var(--transition)}
.vtn-gallery__thumb--active,.vtn-gallery__thumb:hover{border-color:var(--clr-primary)}
.vtn-gallery__thumb img{width:100%;height:100%;object-fit:cover}
.vtn-product-detail__cats{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.vtn-product-detail__cat-link{font-size:.75rem;color:var(--clr-primary);font-weight:600}
.vtn-product-detail__cat-link:hover{text-decoration:underline}
.vtn-product-detail__title{font-size:1.6rem;font-weight:800;color:var(--clr-navy);line-height:1.25;margin-bottom:8px}
.vtn-product-detail__sku{font-size:.82rem;color:var(--clr-text-muted);margin-bottom:4px}
.vtn-product-detail__price{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:12px 0}
.vtn-product-detail__price .vtn-price{font-size:1.7rem}
.vtn-product-detail__unit{color:var(--clr-text-muted);font-size:.9rem}
.vtn-product-detail__short-desc{font-size:.92rem;color:var(--clr-text-muted);line-height:1.7;padding:16px;background:var(--clr-bg);border-radius:var(--radius)}
.vtn-product-detail__quick-specs{display:flex;flex-direction:column;gap:0;border:1px solid var(--clr-border);border-radius:var(--radius);overflow:hidden;margin:16px 0}
.vtn-spec-row{display:flex;padding:10px 16px;font-size:.85rem}
.vtn-spec-row:nth-child(even){background:var(--clr-bg)}
.vtn-spec-row span{width:140px;color:var(--clr-text-muted);flex-shrink:0}
.vtn-spec-row strong{color:var(--clr-text);font-weight:600}
.vtn-product-detail__actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}
.vtn-product-detail__actions .vtn-btn{justify-content:center}
.vtn-product-detail__apps{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.vtn-product-detail__apps-label{font-size:.82rem;color:var(--clr-text-muted)}

/* Tabs */
.vtn-product-tabs{margin-top:48px}
.vtn-tabs__nav{display:flex;gap:0;border-bottom:2px solid var(--clr-border)}
.vtn-tabs__tab{padding:12px 24px;font-size:.9rem;font-weight:600;color:var(--clr-text-muted);border-bottom:2px solid transparent;margin-bottom:-2px;transition:all var(--transition)}
.vtn-tabs__tab--active,.vtn-tabs__tab:hover{color:var(--clr-primary);border-bottom-color:var(--clr-primary)}
.vtn-tabs__panel{padding:24px 0;display:none}
.vtn-tabs__panel--active{display:block}
.vtn-specs-table{width:100%;border-collapse:collapse;font-size:.88rem}
.vtn-specs-table th,.vtn-specs-table td{padding:10px 16px;border:1px solid var(--clr-border);text-align:left}
.vtn-specs-table th{background:var(--clr-bg);width:200px;color:var(--clr-text-muted);font-weight:600}
.vtn-specs-table tr:nth-child(even) td{background:#fafafa}

/* --------------------------------------------------------------------------
   18. Archive Layout
   -------------------------------------------------------------------------- */
.vtn-archive-header{background:linear-gradient(135deg,var(--clr-navy),#0057b7);color:#fff;padding:48px 0}
.vtn-archive-header__title{font-size:clamp(1.5rem,3vw,2.2rem);color:#fff;font-weight:800;margin-bottom:8px}
.vtn-archive-header__desc{color:rgba(255,255,255,.8);font-size:.95rem}
.vtn-archive-layout{display:grid;grid-template-columns:260px 1fr;gap:32px;padding:40px 0}
.vtn-archive-layout--single{grid-template-columns:1fr}
.vtn-archive-main{min-width:0}

/* Sidebar */
.vtn-filter-sidebar__inner{background:#fff;border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-card);position:sticky;top:calc(var(--header-h) + var(--topbar-h) + 20px)}
.vtn-filter-sidebar__title{font-size:1rem;font-weight:700;color:var(--clr-navy);margin-bottom:20px;padding-bottom:12px;border-bottom:2px solid var(--clr-primary)}
.vtn-filter-group{margin-bottom:24px}
.vtn-filter-group__title{font-size:.85rem;font-weight:700;color:var(--clr-text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}
.vtn-filter-group__list{display:flex;flex-direction:column;gap:4px}
.vtn-filter-link{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;border-radius:var(--radius-sm);font-size:.85rem;color:var(--clr-text);transition:all var(--transition)}
.vtn-filter-link:hover,.vtn-filter-link.active{background:var(--clr-primary-light);color:var(--clr-primary)}
.vtn-filter-count{font-size:.72rem;color:var(--clr-text-muted);background:var(--clr-bg);padding:1px 7px;border-radius:var(--radius-full)}
.vtn-filter-checkbox{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--clr-text);cursor:pointer;padding:6px 0}
.vtn-filter-checkbox input{accent-color:var(--clr-primary)}

/* Toolbar */
.vtn-archive-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding:12px 16px;background:#fff;border-radius:var(--radius);border:1px solid var(--clr-border)}
.vtn-archive-count{font-size:.88rem;color:var(--clr-text-muted)}
.vtn-select{height:36px;padding:0 12px;border:1px solid var(--clr-border);border-radius:var(--radius-sm);font-size:.85rem;color:var(--clr-text);cursor:pointer;outline:none}
.vtn-select:focus{border-color:var(--clr-primary)}

/* --------------------------------------------------------------------------
   19. Category Page
   -------------------------------------------------------------------------- */
.vtn-cat-hero{background:linear-gradient(135deg,var(--clr-navy),#0057b7);color:#fff;padding:40px 0}
.vtn-cat-hero__label{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.6);margin-bottom:6px}
.vtn-cat-hero__icon{font-size:2.4rem;margin-bottom:10px}
.vtn-cat-hero__title{font-size:1.8rem;font-weight:800;color:#fff;margin-bottom:8px}
.vtn-cat-hero__desc{color:rgba(255,255,255,.85);font-size:.92rem}
.vtn-cat-hero--app .vtn-cat-hero__title{font-size:clamp(1.5rem,3vw,2rem)}
.vtn-subcats{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:20px 0}
.vtn-subcats__label{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--clr-text-muted);flex-shrink:0}
.vtn-subcat-chip{padding:8px 18px;background:#fff;border:1px solid var(--clr-border);border-radius:var(--radius-full);font-size:.85rem;color:var(--clr-text);font-weight:600;transition:all var(--transition)}
.vtn-subcat-chip:hover{background:var(--clr-primary);color:#fff;border-color:var(--clr-primary)}
.vtn-filter-sidebar__cta{margin-top:24px;padding:16px;background:var(--clr-bg-alt,#f0f6ff);border-radius:var(--radius);text-align:center}
.vtn-filter-sidebar__cta p{font-size:.82rem;color:var(--clr-text-muted);margin-bottom:10px;line-height:1.5}

/* --------------------------------------------------------------------------
   20. FAQ
   -------------------------------------------------------------------------- */
.vtn-faq-section{margin-top:64px;padding-top:60px;border-top:2px solid var(--clr-border)}
.vtn-faq-section h2{margin:0 0 26px}
.vtn-faq-section__title{font-size:1.25rem;font-weight:700;color:var(--clr-navy);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.vtn-faq-section__title::before{content:'';display:inline-block;width:4px;height:1.2em;border-radius:4px;background:linear-gradient(180deg,#0077ff,#38bdf8);flex-shrink:0}
.vtn-faq-list{display:flex;flex-direction:column;gap:12px;counter-reset:faq-counter}
.vtn-faq-item{counter-increment:faq-counter;border:1.5px solid rgba(16,34,53,.08);border-radius:16px;overflow:hidden;background:#fff;transition:box-shadow .25s ease,border-color .25s ease}
.vtn-faq-item:hover{border-color:rgba(0,119,255,.2);box-shadow:0 4px 18px rgba(0,119,255,.07)}
.vtn-faq-item:has([aria-expanded="true"]){border-color:rgba(0,119,255,.3);box-shadow:0 6px 28px rgba(0,119,255,.11)}
.vtn-faq-item__q{width:100%;display:flex;align-items:center;gap:14px;padding:16px 18px;font-size:.93rem;font-weight:600;color:var(--clr-text);text-align:left;transition:background .25s ease,color .25s ease}
.vtn-faq-item__q::before{content:"Q" counter(faq-counter);flex-shrink:0;width:32px;height:32px;border-radius:10px;background:var(--clr-primary-light);color:var(--clr-primary);font-size:.72rem;font-weight:800;letter-spacing:.3px;display:flex;align-items:center;justify-content:center;transition:background .25s ease,color .25s ease}
.vtn-faq-item__q svg{flex-shrink:0;margin-left:auto;color:#9ca3af;transition:transform .3s ease,color .25s ease}
.vtn-faq-item__q:hover{background:#f4f8ff}
.vtn-faq-item__q[aria-expanded="true"]{background:linear-gradient(90deg,rgba(0,119,255,.07) 0%,rgba(0,119,255,.02) 100%);color:var(--clr-primary)}
.vtn-faq-item__q[aria-expanded="true"]::before{background:var(--clr-primary);color:#fff}
.vtn-faq-item__q[aria-expanded="true"] svg{transform:rotate(180deg);color:var(--clr-primary)}
.vtn-faq-item__a{overflow:hidden;transition:max-height .35s ease;padding:0}
.vtn-faq-item__a p{padding:14px 18px 18px 64px;font-size:.875rem;color:var(--clr-text-muted);line-height:1.75;margin:0;border-top:1px solid rgba(16,34,53,.06)}

/* --------------------------------------------------------------------------
   21. Combo Detail
   -------------------------------------------------------------------------- */
.vtn-combo-detail{padding:40px 0}
.vtn-combo-detail__header{margin-bottom:32px}
.vtn-combo-detail__title{font-size:1.8rem;font-weight:800;color:var(--clr-navy);margin:12px 0}
.vtn-combo-detail__scale{display:flex;align-items:center;gap:6px;font-size:.88rem;color:var(--clr-text-muted)}
.vtn-combo-detail__thumb{border-radius:var(--radius-lg);overflow:hidden;margin-bottom:32px}
.vtn-combo-items{margin-bottom:32px}
.vtn-combo-items__title{font-size:1.2rem;font-weight:700;color:var(--clr-navy);margin-bottom:16px}
.vtn-combo-table{width:100%;border-collapse:collapse;font-size:.88rem}
.vtn-combo-table th,.vtn-combo-table td{padding:12px 16px;border:1px solid var(--clr-border);text-align:left}
.vtn-combo-table thead{background:var(--clr-navy);color:#fff}
.vtn-combo-table tbody tr:nth-child(even){background:var(--clr-bg)}
.vtn-combo-detail__total{display:flex;align-items:center;gap:12px;padding:16px 20px;background:var(--clr-primary-light);border-radius:var(--radius);margin:24px 0;font-size:.92rem}
.vtn-combo-detail__total .vtn-price{font-size:1.3rem}
.vtn-combo-detail__total small{color:var(--clr-text-muted);font-size:.78rem}
.vtn-combo-detail__notes{margin-bottom:32px}
.vtn-combo-detail__notes h2{font-size:1.1rem;font-weight:700;margin-bottom:12px}
.vtn-combo-detail__cta{background:var(--clr-bg);border-radius:var(--radius-lg);padding:32px;text-align:center;border:2px solid var(--clr-border)}
.vtn-combo-detail__cta-title{font-size:1.3rem;font-weight:700;margin-bottom:8px}
.vtn-combo-detail__cta p{color:var(--clr-text-muted);margin-bottom:20px}
.vtn-combo-detail__cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* --------------------------------------------------------------------------
   22. Guide Detail
   -------------------------------------------------------------------------- */
.vtn-guide-detail-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;padding:40px 0}
.vtn-guide-detail__topic{display:block;font-size:.75rem;font-weight:700;color:var(--clr-aqua);text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}
.vtn-guide-detail__title{font-size:clamp(1.4rem,3vw,2rem);font-weight:800;color:var(--clr-navy);margin-bottom:8px}
.vtn-guide-detail__meta{font-size:.82rem;color:var(--clr-text-muted);margin-bottom:24px}
.vtn-guide-detail__thumb{border-radius:var(--radius-lg);overflow:hidden;margin-bottom:32px}
.vtn-guide-detail__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.vtn-guide-sidebar{display:flex;flex-direction:column;gap:28px;align-self:start;position:sticky;top:calc(var(--header-h) + var(--topbar-h) + 20px);z-index:2}
.vtn-guide-sidebar__widget{background:#fff;border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-card);position:relative;top:auto;z-index:1}
.vtn-guide-sidebar__widget-title{font-size:.95rem;font-weight:700;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--clr-primary)}
.vtn-guide-sidebar__list{display:flex;flex-direction:column;gap:12px}
.vtn-guide-sidebar__list li{display:flex;flex-direction:column;gap:2px}
.vtn-guide-sidebar__list a{font-size:.85rem;font-weight:600;color:var(--clr-text)}
.vtn-guide-sidebar__list a:hover{color:var(--clr-primary)}
.vtn-guide-sidebar__list small{font-size:.72rem;color:var(--clr-text-muted)}
.vtn-guide-sidebar__cta{background:linear-gradient(135deg,var(--clr-navy),var(--clr-primary));color:#fff;border-radius:var(--radius-lg);padding:24px;text-align:center;position:relative;z-index:1;margin-top:0;overflow:hidden}
.vtn-guide-sidebar__cta h3{color:#fff;margin-bottom:8px}
.vtn-guide-sidebar__cta p{opacity:.8;font-size:.85rem;margin-bottom:16px}
.vtn-post-toc{margin:0 0 30px;padding:22px 24px;border:1px solid rgba(0,119,255,.16);border-radius:24px;background:linear-gradient(135deg,#fff 0%,#f0fbff 100%);box-shadow:0 16px 42px rgba(7,24,44,.08);position:relative;overflow:hidden}
.vtn-post-toc::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:linear-gradient(180deg,var(--clr-primary),var(--clr-aqua))}
.vtn-post-toc__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid rgba(16,34,53,.08)}
.vtn-post-toc__head strong{font-size:1rem;color:var(--clr-navy)}
.vtn-post-toc__eyebrow{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:rgba(0,119,255,.1);color:var(--clr-primary-dark);font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
.vtn-post-toc__list{display:grid;grid-template-columns:1fr 1fr;gap:8px 18px;margin:0;padding:0;counter-reset:toc}
.vtn-post-toc__item{list-style:none;counter-increment:toc;margin:0}
.vtn-post-toc__item a{display:grid;grid-template-columns:30px 1fr;gap:9px;align-items:start;color:#20354a;font-size:.9rem;font-weight:700;line-height:1.45;text-decoration:none;border-radius:14px;padding:8px 10px;transition:background var(--transition),color var(--transition),transform var(--transition)}
.vtn-post-toc__item a::before{content:counter(toc,decimal-leading-zero);display:grid;place-items:center;width:28px;height:28px;border-radius:10px;background:#e8f2ff;color:var(--clr-primary);font-size:.72rem;font-weight:900}
.vtn-post-toc__item--h3 a{padding-left:18px;color:#51677b;font-size:.84rem;font-weight:600}
.vtn-post-toc__item--h3 a::before{background:#f3f8fb;color:#6f8496}
.vtn-post-toc__item a:hover{background:#fff;color:var(--clr-primary);transform:translateX(2px);box-shadow:0 8px 22px rgba(7,24,44,.07)}

/* --------------------------------------------------------------------------
   23. Topic chips
   -------------------------------------------------------------------------- */
.vtn-guide-topics{display:flex;flex-wrap:wrap;gap:8px;padding:24px 0}
.vtn-topic-chip{padding:8px 20px;border-radius:var(--radius-full);border:1px solid var(--clr-border);font-size:.85rem;color:var(--clr-text);font-weight:600;transition:all var(--transition)}
.vtn-topic-chip:hover,.vtn-topic-chip.active{background:var(--clr-primary);color:#fff;border-color:var(--clr-primary)}

/* --------------------------------------------------------------------------
   24. Page Hero (generic pages)
   -------------------------------------------------------------------------- */
.vtn-page-hero{background:linear-gradient(135deg,var(--clr-navy),#0057b7);color:#fff;padding:48px 0}
.vtn-page-hero__title{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:800;color:#fff}
.vtn-page-hero__desc{color:rgba(255,255,255,.8);margin-top:8px}
.vtn-page-prose{max-width:760px;margin:48px auto;padding-block:0}

/* --------------------------------------------------------------------------
   25. Prose (rich content)
   -------------------------------------------------------------------------- */
.vtn-prose{font-size:.92rem;line-height:1.8;color:var(--clr-text)}
.vtn-prose h2{font-size:1.3rem;color:var(--clr-navy);margin:32px 0 12px;font-weight:700}
.vtn-prose h3{font-size:1.1rem;color:var(--clr-navy);margin:24px 0 8px;font-weight:700}
.vtn-prose p{margin-bottom:16px}
.vtn-prose ul,.vtn-prose ol{padding-left:24px;margin-bottom:16px}
.vtn-prose li{margin-bottom:6px}
.vtn-prose ul li{list-style:disc}
.vtn-prose ol li{list-style:decimal}
.vtn-prose img{border-radius:var(--radius-lg);margin:24px 0;width:100%}
.vtn-prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.88rem}
.vtn-prose th,.vtn-prose td{padding:10px 14px;border:1px solid var(--clr-border)}
.vtn-prose th{background:var(--clr-bg);font-weight:700}
.vtn-prose a{color:var(--clr-primary);text-decoration:underline}
.vtn-prose blockquote{border-left:4px solid var(--clr-primary);padding-left:20px;color:var(--clr-text-muted);font-style:italic;margin:24px 0}

/* Premium article detail */
.vtn-article-page{background:linear-gradient(180deg,#edfaff 0%,#f7fbfd 420px,#fff 100%)}
.vtn-article-page .vtn-breadcrumb{background:transparent;border-bottom:0}
.vtn-article-hero{position:relative;overflow:hidden;padding:28px 0 44px}
.vtn-article-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 12%,rgba(0,212,200,.23),transparent 34%),linear-gradient(135deg,rgba(7,24,44,.03),rgba(0,119,255,.08));pointer-events:none}
.vtn-article-hero__inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 440px;gap:34px;align-items:center}
.vtn-article-hero__cat{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:#e8f2ff;color:var(--clr-primary);font-size:.74rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;text-decoration:none;margin-bottom:16px}
.vtn-article-hero__cat:hover{background:#dcecff;color:var(--clr-primary-dark)}
.vtn-article-hero__title{font-size:clamp(2rem,4vw,3.45rem);line-height:1.08;color:var(--clr-navy);letter-spacing:0;margin:0 0 18px;max-width:880px}
.vtn-article-hero__excerpt{font-size:1.02rem;line-height:1.82;color:#40576c;max-width:760px;margin:0 0 22px}
.vtn-article-hero__meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;color:#64788c;font-size:.84rem;font-weight:700}
.vtn-article-hero__meta span{display:inline-flex;align-items:center;gap:7px}
.vtn-article-hero__meta span:not(:last-child)::after{content:"";width:5px;height:5px;border-radius:50%;background:#9eb0bf;margin-left:10px}
.vtn-article-hero__media{margin:0;border-radius:28px;overflow:hidden;aspect-ratio:1/1;background:#dff5fb;box-shadow:0 30px 70px rgba(7,24,44,.18);border:1px solid rgba(255,255,255,.72)}
.vtn-article-hero__media img{width:100%;height:100%;object-fit:cover;display:block}
.vtn-article-body{padding:38px 0 82px}
.vtn-article-layout{display:grid;grid-template-columns:minmax(0,820px) 340px;gap:34px;align-items:start;justify-content:center}
.vtn-article-card{background:#fff;border:1px solid rgba(16,34,53,.08);border-radius:24px;padding:34px;box-shadow:0 22px 60px rgba(7,24,44,.08)}
.vtn-article-card--has-thumb .vtn-article-content > figure:first-child{display:none}
.vtn-article-content{font-size:1rem;line-height:1.88;color:#263d53}
.vtn-article-content p{margin:0 0 20px}
.vtn-article-content h2{position:relative;font-size:1.48rem;line-height:1.32;color:var(--clr-navy);font-weight:900;margin:44px 0 16px;padding-top:4px}
.vtn-article-content h2::before{content:"";display:block;width:52px;height:4px;border-radius:999px;background:linear-gradient(90deg,var(--clr-primary),var(--clr-aqua));margin-bottom:14px}
.vtn-article-content h3{font-size:1.12rem;line-height:1.45;color:#102235;font-weight:850;margin:30px 0 10px}
.vtn-article-content ul,.vtn-article-content ol{margin:18px 0 24px;padding:0;display:grid;gap:10px}
.vtn-article-content li{list-style:none;position:relative;padding:13px 16px 13px 44px;background:#f5fbff;border:1px solid rgba(0,119,255,.09);border-radius:14px;margin:0;color:#294257}
.vtn-article-content li::marker{content:""}
.vtn-article-content li::before{content:"";position:absolute;left:17px;top:18px;width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--clr-primary),var(--clr-aqua));box-shadow:0 0 0 5px rgba(0,119,255,.1)}
.vtn-article-content a{color:var(--clr-primary);font-weight:800;text-decoration:none;border-bottom:1px solid rgba(0,119,255,.28)}
.vtn-article-content a:hover{color:var(--clr-primary-dark);border-bottom-color:currentColor}
.vtn-article-content figure{margin:30px 0}
.vtn-article-content figure img{width:100%;height:auto;border-radius:22px;box-shadow:0 22px 54px rgba(7,24,44,.12);border:1px solid rgba(16,34,53,.08)}
.vtn-article-content blockquote{margin:28px 0;padding:22px 24px;border:0;border-left:5px solid var(--clr-primary);border-radius:18px;background:#f3f9ff;color:#365069;font-style:normal}
.vtn-article-content table{border-radius:16px;overflow:hidden;box-shadow:0 8px 26px rgba(7,24,44,.06)}
.vtn-article-sidebar{position:sticky;top:calc(var(--header-h) + var(--topbar-h) + 22px);display:flex;flex-direction:column;gap:18px}
.vtn-article-sidebox{background:#fff;border:1px solid rgba(16,34,53,.08);border-radius:22px;padding:22px;box-shadow:0 18px 50px rgba(7,24,44,.08)}
.vtn-article-sidebox--cta{background:linear-gradient(145deg,#07182c,#064f9f);color:#fff;overflow:hidden;position:relative}
.vtn-article-sidebox--cta::after{content:"";position:absolute;right:-80px;bottom:-90px;width:230px;height:230px;border-radius:50%;background:rgba(0,212,200,.22)}
.vtn-article-sidebox__eyebrow{position:relative;z-index:1;display:inline-flex;color:#39e2dd;font-size:.72rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px}
.vtn-article-sidebox h2{position:relative;z-index:1;font-size:1.05rem;line-height:1.4;color:inherit;margin:0 0 10px}
.vtn-article-sidebox p{position:relative;z-index:1;color:rgba(255,255,255,.76);font-size:.86rem;line-height:1.7;margin:0 0 16px}
.vtn-article-sidebox .vtn-btn{position:relative;z-index:1;width:100%;justify-content:center;margin-bottom:12px}
.vtn-article-sidebox__phone{position:relative;z-index:1;display:block;text-align:center;color:#fff;font-weight:900;text-decoration:none}
.vtn-article-related-list{display:flex;flex-direction:column;gap:14px;margin:0;padding:0}
.vtn-article-related-list li{list-style:none;margin:0;padding:0 0 14px;border-bottom:1px solid rgba(16,34,53,.08)}
.vtn-article-related-list li:last-child{border-bottom:0;padding-bottom:0}
.vtn-article-related-list a{display:block;color:var(--clr-navy);font-size:.9rem;font-weight:800;line-height:1.45;text-decoration:none}
.vtn-article-related-list a:hover{color:var(--clr-primary)}
.vtn-article-related-list small{display:block;color:var(--clr-text-muted);font-size:.74rem;margin-top:5px}

/* --------------------------------------------------------------------------
   26. Breadcrumb
   -------------------------------------------------------------------------- */
.vtn-breadcrumb{padding:12px 0;background:#fff;border-bottom:1px solid var(--clr-border)}
.vtn-breadcrumb .vtn-container{display:flex}
.vtn-breadcrumb__nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.vtn-breadcrumb__item,.vtn-breadcrumb__sep{font-size:.78rem;color:var(--clr-text-muted)}
.vtn-breadcrumb__item a{color:var(--clr-text-muted);transition:color var(--transition)}
.vtn-breadcrumb__item a:hover{color:var(--clr-primary)}
.vtn-breadcrumb__item--current{color:var(--clr-primary);font-weight:600}

/* --------------------------------------------------------------------------
   27. Pagination
   -------------------------------------------------------------------------- */
.vtn-pagination{display:flex;justify-content:center;gap:8px;padding:32px 0}
.vtn-pagination .page-numbers{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--clr-border);color:var(--clr-text);font-size:.88rem;font-weight:600;transition:all var(--transition)}
.vtn-pagination .page-numbers:hover{border-color:var(--clr-primary);color:var(--clr-primary)}
.vtn-pagination .current{background:var(--clr-primary);color:#fff;border-color:var(--clr-primary)}
.vtn-pagination .dots{border:none;background:none}

/* --------------------------------------------------------------------------
   28. Contact Page
   -------------------------------------------------------------------------- */
.vtn-contact-layout{display:grid;grid-template-columns:1fr 360px;gap:48px;padding:48px 0}
.vtn-contact-form-wrap__title{font-size:1.4rem;font-weight:700;margin-bottom:28px;color:var(--clr-navy)}
.vtn-contact-form{display:flex;flex-direction:column;gap:20px}
.vtn-form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.vtn-form-group{display:flex;flex-direction:column;gap:6px}
.vtn-form-group label{font-size:.85rem;font-weight:600;color:var(--clr-text)}
.req{color:var(--clr-danger)}
.vtn-form-input,.vtn-form-select,.vtn-form-textarea{height:46px;padding:0 16px;border:2px solid var(--clr-border);border-radius:var(--radius);font-size:.9rem;color:var(--clr-text);transition:border-color var(--transition),box-shadow var(--transition);outline:none;background:#fff;font-family:inherit}
.vtn-form-textarea{height:auto;padding:14px 16px;resize:vertical}
.vtn-form-input:focus,.vtn-form-select:focus,.vtn-form-textarea:focus{border-color:var(--clr-primary);box-shadow:0 0 0 3px rgba(0,119,255,.15)}
.vtn-form-file{padding:10px;border:2px dashed var(--clr-border);border-radius:var(--radius);font-size:.85rem;cursor:pointer}
.vtn-form-notice{padding:14px 20px;border-radius:var(--radius);font-size:.88rem}
.vtn-form-notice--success{background:#f0fdf4;color:#16a34a;border:1px solid #bbf7d0}
.vtn-form-notice--error{background:#fef2f2;color:#dc2626;border:1px solid #fecaca}
.vtn-contact-info__card{background:#fff;border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-card);margin-bottom:20px}
.vtn-contact-info__title{font-size:1.1rem;font-weight:700;color:var(--clr-navy);margin-bottom:20px}
.vtn-contact-info__list{display:flex;flex-direction:column;gap:16px}
.vtn-contact-info__list li{display:flex;align-items:flex-start;gap:12px;font-size:.88rem}
.vtn-contact-info__list li > div:last-child{display:flex;flex-direction:column;gap:2px}
.vtn-contact-info__list li span{font-size:.75rem;color:var(--clr-text-muted)}
.vtn-contact-info__list li a,.vtn-contact-info__list li address{font-weight:600;color:var(--clr-text);font-style:normal}
.vtn-contact-info__list li a:hover{color:var(--clr-primary)}
.vtn-contact-info__icon{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.vtn-contact-info__icon--phone{background:var(--clr-primary-light);color:var(--clr-primary)}
.vtn-contact-info__icon--email{background:var(--clr-aqua-light);color:var(--clr-aqua)}
.vtn-contact-info__icon--address{background:#f0fdf4;color:#16a34a}
.vtn-contact-info__icon--zalo{background:#e6f0ff;color:#0068ff}
.vtn-contact-hours{margin-top:20px;padding-top:20px;border-top:1px solid var(--clr-border)}
.vtn-contact-hours h3{font-size:.9rem;font-weight:700;margin-bottom:10px}
.vtn-contact-hours p{font-size:.85rem;color:var(--clr-text-muted);line-height:1.8}
.vtn-quote-list-preview{background:var(--clr-primary-light);border:1px solid rgba(0,119,255,.2);border-radius:var(--radius);padding:16px}
.vtn-quote-list-preview h3{font-size:.9rem;font-weight:700;margin-bottom:10px;color:var(--clr-primary)}
.vtn-quote-list-preview__item{font-size:.85rem;padding:4px 0;color:var(--clr-text)}

/* --------------------------------------------------------------------------
   29. No Results / 404
   -------------------------------------------------------------------------- */
.vtn-no-results{text-align:center;padding:80px 20px}
.vtn-no-results svg{margin:0 auto 20px;color:var(--clr-border)}
.vtn-no-results h2{font-size:1.5rem;margin-bottom:12px;color:var(--clr-navy)}
.vtn-no-results p{color:var(--clr-text-muted);margin-bottom:24px}
.vtn-404{padding:80px 0}
.vtn-404__inner{text-align:center;max-width:560px;margin:auto}
.vtn-404__graphic{margin-bottom:24px}
.vtn-404__title{font-size:2rem;font-weight:800;color:var(--clr-navy);margin-bottom:12px}
.vtn-404__desc{color:var(--clr-text-muted);margin-bottom:28px}
.vtn-404__links{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:24px}

/* --------------------------------------------------------------------------
   30. Related Products
   -------------------------------------------------------------------------- */
.vtn-related-products{margin-top:76px;padding-top:56px;border-top:2px solid var(--clr-border)}
.vtn-related-products > .vtn-related-products__title{display:none}
.vtn-related-products__head{max-width:720px;margin-bottom:28px}
.vtn-related-products__eyebrow{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:#e8f2ff;color:var(--clr-primary);font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px}
.vtn-related-products__title{font-size:1.35rem;font-weight:800;color:var(--clr-navy);margin:0 0 10px}
.vtn-related-products__desc{margin:0;color:var(--clr-text-muted);font-size:.92rem;line-height:1.7}

/* Tools: accessories + estimator */
.vtn-tools-section{background:#f3fbfd;padding:72px 0}
.vtn-tools-section--page{padding-top:48px}
.vtn-tools-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.vtn-tools-head h2{margin:10px 0 10px;color:var(--clr-navy);font-size:clamp(1.45rem,2.6vw,2rem);line-height:1.25}
.vtn-tools-head p{margin:0;color:var(--clr-text-muted);max-width:680px;line-height:1.75}
.vtn-tools-eyebrow{display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:999px;background:#e8f2ff;color:var(--clr-primary);font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
.vtn-tools-head__link{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 18px;border-radius:999px;background:#fff;color:var(--clr-primary);font-weight:800;border:1px solid rgba(0,119,255,.18);box-shadow:0 10px 28px rgba(7,24,44,.08)}
.vtn-tools-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:stretch}
.vtn-tool-card{background:#fff;border:1px solid rgba(16,34,53,.08);border-radius:18px;padding:24px;box-shadow:0 18px 46px rgba(7,24,44,.08);height:100%;display:flex;flex-direction:column}
.vtn-tool-card__head{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px}
.vtn-tool-card__icon{width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;background:linear-gradient(135deg,var(--clr-primary),var(--clr-aqua));box-shadow:0 12px 28px rgba(0,119,255,.24);flex-shrink:0}
.vtn-tool-card h3{margin:0 0 6px;color:var(--clr-navy);font-size:1.1rem;line-height:1.35}
.vtn-tool-card p{margin:0;color:var(--clr-text-muted);font-size:.88rem;line-height:1.65}
.vtn-tool-label,.vtn-estimator label span{display:block;margin-bottom:8px;color:var(--clr-navy);font-size:.78rem;font-weight:800}
.vtn-tool-select,.vtn-estimator select,.vtn-estimator input{width:100%;height:44px;border:1px solid var(--clr-border);border-radius:12px;background:#fff;padding:0 13px;color:var(--clr-text);font-weight:700;outline:none}
.vtn-tool-select:focus,.vtn-estimator select:focus,.vtn-estimator input:focus{border-color:rgba(0,119,255,.5);box-shadow:0 0 0 4px rgba(0,119,255,.09)}
.vtn-accessory-result{margin-top:16px}
.vtn-accessory-main{padding:14px 16px;border-radius:14px;background:#f3f9ff;border:1px solid rgba(0,119,255,.12);margin-bottom:12px}
.vtn-accessory-main span{display:block;font-size:.72rem;font-weight:800;color:var(--clr-primary);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.vtn-accessory-main a{color:var(--clr-navy);font-weight:800}
.vtn-accessory-list{display:grid;gap:10px}
.vtn-accessory-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 14px;border:1px solid var(--clr-border);border-radius:14px;background:#fff}
.vtn-accessory-item h4{margin:3px 0 0;font-size:.9rem;line-height:1.45}
.vtn-accessory-item h4 a{color:var(--clr-navy)}
.vtn-accessory-item__sku{font-size:.72rem;color:var(--clr-text-muted);font-weight:800}
.vtn-accessory-item button,.vtn-mini-product__add{border:0;border-radius:999px;background:var(--clr-primary);color:#fff;font-size:.78rem;font-weight:800;height:34px;padding:0 12px;cursor:pointer;white-space:nowrap}
.vtn-tool-primary,.vtn-tool-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:42px;border-radius:999px;padding:0 18px;font-weight:800;text-decoration:none;border:0;cursor:pointer}
.vtn-tool-primary{background:var(--clr-primary);color:#fff;box-shadow:0 12px 30px rgba(0,119,255,.25)}
.vtn-tool-secondary{margin-top:14px;background:var(--clr-navy);color:#fff;width:100%}
.vtn-estimator__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:16px}
.vtn-estimate-result{margin-top:16px;border-radius:16px;background:#f7fbff;border:1px solid rgba(16,34,53,.08);padding:16px}
.vtn-estimate-result__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.vtn-estimate-result__head strong{color:var(--clr-navy)}
.vtn-estimate-result__head span{color:var(--clr-primary);font-size:.78rem;font-weight:800}
.vtn-estimate-list{display:grid;gap:8px}
.vtn-estimate-list div{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border-radius:12px;background:#fff;border:1px solid rgba(16,34,53,.06)}
.vtn-estimate-list span{color:var(--clr-text);font-size:.86rem}
.vtn-estimate-list strong{color:var(--clr-navy);font-size:.86rem;text-align:right}
.vtn-estimate-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.vtn-estimate-actions .vtn-tool-secondary{margin-top:0}
.vtn-estimate-note{margin:12px 0 0!important;font-size:.78rem!important}
.vtn-tool-empty{display:flex;flex-direction:column;gap:4px;padding:16px;border-radius:14px;background:#f7fbff;border:1px dashed rgba(0,119,255,.22);color:var(--clr-text-muted)}
.vtn-tool-empty strong{color:var(--clr-navy)}
.vtn-tool-guidance{margin:4px 0 20px;border-radius:18px;background:linear-gradient(145deg,#07182c,#075aa9);color:#fff;padding:20px;overflow:hidden;position:relative;box-shadow:0 18px 46px rgba(7,24,44,.12);flex:0 0 auto;display:flex;flex-direction:column}
.vtn-tool-guidance::after{content:"";position:absolute;right:-70px;bottom:-90px;width:220px;height:220px;border-radius:50%;background:rgba(0,212,200,.22)}
.vtn-tool-guidance__head{position:relative;z-index:1;display:flex;gap:14px;align-items:flex-start;margin-bottom:18px}
.vtn-tool-guidance__icon{width:38px;height:38px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.12);color:#39e2dd;flex-shrink:0}
.vtn-tool-guidance h4{margin:0 0 6px;font-size:1rem;line-height:1.35;color:#fff}
.vtn-tool-guidance p{margin:0!important;color:rgba(255,255,255,.76)!important;font-size:.84rem!important;line-height:1.7!important}
.vtn-tool-guidance__steps{position:relative;z-index:1;display:grid;gap:12px;margin-bottom:18px}
.vtn-tool-guidance__steps div{display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:center;min-height:56px;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1)}
.vtn-tool-guidance__steps b{display:inline-flex;align-items:center;justify-content:center;width:34px;height:28px;border-radius:10px;background:#fff;color:var(--clr-primary);font-size:.76rem;font-weight:900}
.vtn-tool-guidance__steps span{color:rgba(255,255,255,.86);font-size:.84rem;line-height:1.55}
.vtn-tool-guidance__link{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;min-height:46px;border-radius:999px;background:#fff;color:var(--clr-primary);font-weight:900;text-decoration:none;margin-top:0}
.vtn-tool-guidance__link:hover{color:var(--clr-primary-dark);transform:translateY(-1px)}
.vtn-product-accessories{margin-top:56px;padding-top:48px;border-top:2px solid var(--clr-border)}
.vtn-mini-product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.vtn-mini-product{display:grid;grid-template-columns:96px minmax(0,1fr);gap:14px;align-items:center;background:#fff;border:1px solid rgba(16,34,53,.08);border-radius:16px;padding:12px;box-shadow:0 12px 34px rgba(7,24,44,.06)}
.vtn-mini-product__thumb{aspect-ratio:1;border-radius:12px;overflow:hidden;background:#f3f9ff;display:flex}
.vtn-mini-product__thumb img,.vtn-mini-product__thumb svg{width:100%;height:100%;object-fit:cover}
.vtn-mini-product__note{display:inline-flex;margin-bottom:5px;color:var(--clr-primary);font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em}
.vtn-mini-product h3{font-size:.88rem;line-height:1.45;margin:0 0 5px}
.vtn-mini-product h3 a{color:var(--clr-navy)}
.vtn-mini-product__sku{display:block;color:var(--clr-text-muted);font-size:.72rem;font-weight:700;margin-bottom:8px}
.vtn-mini-product__foot{display:flex;align-items:center;justify-content:space-between;gap:8px}
.vtn-mini-product__foot .price-amount,.vtn-mini-product__foot .price-contact{font-size:.82rem;font-weight:800}
.vtn-tools-page{background:#f3fbfd}
.vtn-tools-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#07182c 0%,#064987 56%,#0874c9 100%);color:#fff;padding:72px 0 58px}
.vtn-tools-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,24,44,.08),rgba(0,212,200,.12));pointer-events:none}
.vtn-tools-hero::after{content:"";position:absolute;right:-120px;bottom:-170px;width:420px;height:420px;border-radius:50%;background:rgba(0,212,200,.18);pointer-events:none}
.vtn-tools-hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,760px) 360px;gap:44px;align-items:center}
.vtn-tools-hero__content{max-width:760px}
.vtn-tools-hero .vtn-tools-eyebrow{background:rgba(255,255,255,.92);color:var(--clr-primary)}
.vtn-tools-hero h1{margin:14px 0 16px;font-size:clamp(2.2rem,4.6vw,4rem);line-height:1.08;color:#fff;text-shadow:0 12px 34px rgba(0,0,0,.22)}
.vtn-tools-hero p{margin:0;color:rgba(255,255,255,.86);font-size:1.04rem;line-height:1.85;max-width:720px}
.vtn-tools-hero__actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.vtn-tools-hero__panel{display:grid;gap:12px;padding:18px;border-radius:22px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);box-shadow:0 24px 60px rgba(0,0,0,.2);backdrop-filter:blur(12px)}
.vtn-tools-hero__metric{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 18px;border-radius:16px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.13)}
.vtn-tools-hero__metric strong{font-size:2rem;line-height:1;color:#fff}
.vtn-tools-hero__metric span{color:rgba(255,255,255,.78);font-weight:800}
.vtn-tool-apps{padding:54px 0 12px;background:linear-gradient(180deg,#f3fbfd,#edf8fb)}
.vtn-tool-apps__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:22px}
.vtn-tool-apps__head h2{max-width:760px;margin:10px 0 0;color:var(--clr-navy);font-size:clamp(1.45rem,2.6vw,2.1rem);line-height:1.25}
.vtn-tool-app-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.vtn-tool-app-card{background:#fff;border:1px solid rgba(16,34,53,.08);border-radius:18px;padding:20px;box-shadow:0 18px 46px rgba(7,24,44,.07);display:flex;flex-direction:column;min-height:260px}
.vtn-tool-app-card__icon{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--clr-primary),var(--clr-aqua));box-shadow:0 14px 30px rgba(0,119,255,.22);margin-bottom:16px}
.vtn-tool-app-card h3{margin:0 0 8px;color:var(--clr-navy);font-size:1.02rem;line-height:1.35}
.vtn-tool-app-card p{margin:0 0 18px;color:var(--clr-text-muted);font-size:.86rem;line-height:1.65}
.vtn-tool-app-card__button{margin-top:auto;width:100%;height:42px;border:0;border-radius:999px;background:var(--clr-navy);color:#fff;font-weight:900;cursor:pointer}
.vtn-tool-app-card__button:hover{background:var(--clr-primary)}
.vtn-tool-mini-label{display:block;margin-top:auto;margin-bottom:8px;color:var(--clr-navy);font-size:.76rem;font-weight:900}
.vtn-tool-mini-select{width:100%;height:42px;border:1px solid var(--clr-border);border-radius:12px;background:#fff;padding:0 12px;font-weight:800;color:var(--clr-text);outline:none}
.vtn-tool-mini-select:focus{border-color:rgba(0,119,255,.5);box-shadow:0 0 0 4px rgba(0,119,255,.09)}
.vtn-tool-mini-result{margin-top:12px;padding:12px 14px;border-radius:14px;background:#f3f9ff;border:1px solid rgba(0,119,255,.12);color:#17324a;font-size:.84rem;font-weight:800;line-height:1.55}
.vtn-tool-mini-result.is-complete{background:#ecfff9;border-color:rgba(15,186,124,.2);color:#075c42}
.vtn-tool-checklist{display:grid;gap:9px;margin-top:auto}
.vtn-tool-checklist label{display:flex;align-items:flex-start;gap:8px;color:#294257;font-size:.82rem;font-weight:750;line-height:1.45}
.vtn-tool-checklist input{width:16px;height:16px;accent-color:var(--clr-primary);margin-top:2px}

@media (max-width:1024px){
  .vtn-tools-grid{grid-template-columns:1fr}
  .vtn-tools-hero__inner{grid-template-columns:1fr}
  .vtn-tools-hero__panel{max-width:560px}
  .vtn-tool-app-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .vtn-mini-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .vtn-article-hero__inner{grid-template-columns:1fr}
  .vtn-article-hero__media{max-width:560px}
  .vtn-article-layout{grid-template-columns:1fr}
  .vtn-article-sidebar{position:static;display:grid;grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .vtn-tools-section{padding:48px 0}
  .vtn-tools-head{display:block;margin-bottom:20px}
  .vtn-tools-head__link{margin-top:16px}
  .vtn-tool-card{padding:18px;border-radius:16px}
  .vtn-tool-apps{padding:42px 0 8px}
  .vtn-tool-apps__head{display:block}
  .vtn-tool-app-grid{grid-template-columns:1fr}
  .vtn-tool-app-card{min-height:0}
  .vtn-estimator__grid{grid-template-columns:1fr}
  .vtn-estimate-actions{grid-template-columns:1fr}
  .vtn-accessory-item{align-items:flex-start;flex-direction:column}
  .vtn-accessory-item button{width:100%}
  .vtn-mini-product-grid{grid-template-columns:1fr}
  .vtn-mini-product{grid-template-columns:82px minmax(0,1fr)}
  .vtn-tools-hero{padding:48px 0 38px}
  .vtn-tools-hero h1{font-size:2.15rem}
  .vtn-tools-hero p{font-size:.95rem}
  .vtn-tools-hero__panel{grid-template-columns:1fr;gap:10px;padding:14px}
  .vtn-tools-hero__metric{padding:13px 14px}
  .vtn-article-hero{padding:20px 0 28px}
  .vtn-article-hero__title{font-size:2rem}
  .vtn-article-hero__excerpt{font-size:.95rem}
  .vtn-article-hero__meta{align-items:flex-start;flex-direction:column;gap:6px}
  .vtn-article-hero__meta span::after{display:none!important}
  .vtn-article-hero__media{border-radius:20px}
  .vtn-article-body{padding:24px 0 56px}
  .vtn-article-card{padding:20px;border-radius:18px}
  .vtn-article-content{font-size:.95rem;line-height:1.82}
  .vtn-article-content h2{font-size:1.24rem;margin-top:34px}
  .vtn-article-content li{padding:12px 13px 12px 38px}
  .vtn-article-content li::before{left:15px}
  .vtn-article-sidebar{grid-template-columns:1fr}
  .vtn-article-sidebox{border-radius:18px;padding:18px}
}

/* --------------------------------------------------------------------------
   31. Post Card (blog)
   -------------------------------------------------------------------------- */
.vtn-post-list{display:flex;flex-direction:column;gap:24px}
.vtn-post-card{display:grid;grid-template-columns:240px 1fr;gap:24px;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card)}
.vtn-post-card__thumb{aspect-ratio:4/3;overflow:hidden;background:var(--clr-bg)}
.vtn-post-card__thumb img{width:100%;height:100%;object-fit:cover}
.vtn-post-card__body{padding:24px;display:flex;flex-direction:column;gap:10px}
.vtn-post-card__title{font-size:1.1rem;font-weight:700;color:var(--clr-text)}
.vtn-post-card__title a{color:inherit}
.vtn-post-card__title a:hover{color:var(--clr-primary)}
.vtn-post-card__excerpt{font-size:.88rem;color:var(--clr-text-muted);line-height:1.6}

/* --------------------------------------------------------------------------
   32. Footer
   -------------------------------------------------------------------------- */
.vtn-footer{background:var(--clr-navy);color:rgba(255,255,255,.8)}
.vtn-footer__main{padding:60px 0 40px}
.vtn-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;align-items:start;text-align:left}
.vtn-footer__logo{display:inline-flex;align-items:center;justify-content:flex-start;margin:0 0 18px}
.vtn-footer__logo img{height:58px;width:auto;max-width:280px;object-fit:contain}
.vtn-footer__logo-text{font-size:1.2rem;font-weight:800;color:#fff}
.vtn-footer__desc{font-size:.85rem;line-height:1.8;margin-bottom:20px;color:rgba(255,255,255,.7)}
.vtn-footer__heading{font-size:.9rem;font-weight:700;color:#fff;margin-bottom:16px;text-transform:uppercase;letter-spacing:.06em}
.vtn-footer__links{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.vtn-footer__links li a{font-size:.85rem;color:rgba(255,255,255,.7);transition:color var(--transition)}
.vtn-footer__links li a:hover{color:#fff}
.vtn-footer__contact{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.vtn-footer__contact li{display:flex;align-items:flex-start;justify-content:flex-start;gap:10px;font-size:.85rem;color:rgba(255,255,255,.7)}
.vtn-footer__contact li svg{flex-shrink:0;margin-top:2px;opacity:.7}
.vtn-footer__contact a{color:rgba(255,255,255,.8);transition:color var(--transition)}
.vtn-footer__contact a:hover{color:#fff}
.vtn-footer__cert{margin-top:16px}
.vtn-footer__cert-badge{display:inline-flex;flex-direction:column;padding:8px 14px;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-sm);font-size:.72rem;line-height:1.4}
.vtn-footer__cert-badge strong{color:#fff}
.vtn-footer__bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0}
.vtn-footer__bottom-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.vtn-footer__copyright{font-size:.8rem;color:rgba(255,255,255,.5)}
.vtn-footer__bottom-links{display:flex;gap:16px}
.vtn-footer__bottom-links a{font-size:.8rem;color:rgba(255,255,255,.5);transition:color var(--transition)}
.vtn-footer__bottom-links a:hover{color:#fff}

/* --------------------------------------------------------------------------
   33. Sticky CTA (mobile)
   -------------------------------------------------------------------------- */
.vtn-sticky-cta{display:none;position:fixed;bottom:0;left:0;right:0;z-index:600;padding:12px 16px;background:#fff;border-top:1px solid var(--clr-border);box-shadow:0 -4px 20px rgba(0,0,0,.08);gap:10px}
.vtn-sticky-cta__btn{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;height:48px;border-radius:var(--radius-full);font-weight:700;font-size:.9rem}
.vtn-sticky-cta__btn--call{background:var(--clr-primary);color:#fff}
.vtn-sticky-cta__btn--quote{background:var(--clr-navy);color:#fff}

/* --------------------------------------------------------------------------
   34. Responsive
   -------------------------------------------------------------------------- */
@media (max-width:1100px) {
  .vtn-footer__grid{grid-template-columns:1fr 1fr}
  .vtn-process__steps{grid-template-columns:repeat(2,1fr)}
  .vtn-process__steps::before{display:none}
}

@media (max-width:900px) {
  .vtn-product-detail{grid-template-columns:1fr;gap:28px}
  .vtn-archive-layout{grid-template-columns:1fr}
  .vtn-filter-sidebar{display:none}
  .vtn-guide-detail-layout{grid-template-columns:1fr}
  .vtn-guide-sidebar{display:none;position:static;top:auto}
  .vtn-post-toc__list{grid-template-columns:1fr}
  .vtn-contact-layout{grid-template-columns:1fr}
  .vtn-cta__inner{grid-template-columns:1fr}
  .vtn-cta__features{display:none}
  .vtn-guide-grid{grid-template-columns:repeat(2,1fr)}
  .vtn-product-grid--4col{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:768px) {
  :root{--container-px:16px;--header-h:64px}
  .vtn-topbar{display:none}
  .vtn-header__inner{justify-content:space-between;gap:10px}
  .vtn-header__logo{min-width:0}
  .vtn-header__logo img{height:46px;max-width:158px}
  .vtn-header__search{display:none}
  .vtn-header__hotline{display:none}
  .vtn-header__actions{margin-left:auto;gap:8px}
  .vtn-header__track-btn{display:none}
  .vtn-header__quote-btn{height:38px;padding:0 14px;font-size:.82rem;box-shadow:0 6px 18px rgba(0,119,255,.22)}
  .vtn-quote-count{display:none!important}
  .vtn-header__menu-toggle{display:flex}
  /* Mobile: reliable dropdown panel below header */
  .vtn-nav{display:none;position:fixed;top:var(--header-h);left:0;right:0;bottom:auto;width:100%;max-height:calc(100vh - var(--header-h));z-index:760;background:var(--clr-navy);border:0;overflow-y:auto;padding:10px 0 18px;transform:none;box-shadow:0 18px 44px rgba(0,0,0,.24)}
  .vtn-nav.open{display:block}
  body.vtn-menu-open .vtn-nav{display:block!important;visibility:visible!important;opacity:1!important;pointer-events:auto!important;transform:none!important}
  body.vtn-menu-open .vtn-mobile-overlay{display:block;opacity:1}
  .vtn-nav .vtn-container{padding-inline:0}
  .vtn-nav__menu{flex-direction:column;gap:0;align-items:stretch;padding:0}
  .vtn-nav__menu > li{display:block;width:100%}
  .vtn-nav__menu > li > a{height:auto;padding:14px 52px 14px 24px;border-radius:0;background:transparent;box-shadow:none;color:rgba(255,255,255,.9);font-size:.95rem;font-weight:700;border-bottom:1px solid rgba(255,255,255,.08);transform:none}
  .vtn-nav__menu > li > a:hover,.vtn-nav__menu > li.current-menu-item > a,.vtn-nav__menu > li.current-menu-ancestor > a{color:#fff;background:rgba(255,255,255,.08);box-shadow:none;transform:none}
  .vtn-nav__menu > li > .submenu-toggle{right:18px;top:14px;transform:none;pointer-events:auto;color:rgba(255,255,255,.62)}
  .vtn-nav__menu > li:hover > .submenu-toggle,.vtn-nav__menu > li:focus-within > .submenu-toggle{transform:none;color:#fff}
  .vtn-nav__menu > li.open > .submenu-toggle{transform:rotate(180deg);color:#fff}
  .vtn-nav__menu .sub-menu{position:static;background:rgba(0,0,0,.18);box-shadow:none;border:none;border-radius:0;padding:0 0 0 16px;display:block!important;max-height:0;overflow:hidden;opacity:1;visibility:visible;pointer-events:auto;transform:none;transition:max-height .3s ease}
  .vtn-nav__menu .sub-menu::before{display:none}
  .vtn-nav__menu .sub-menu li a{color:rgba(255,255,255,.72);border-radius:0;padding:11px 24px;font-size:.86rem;background:transparent}
  .vtn-nav__menu .sub-menu li a:hover{color:#fff;background:rgba(255,255,255,.08);transform:none}
  .vtn-nav__menu li.open > .sub-menu{max-height:400px}
  .vtn-hero{padding:56px 0 72px}
  .vtn-hero__stats{flex-direction:column;gap:16px;width:100%;padding:20px}
  .vtn-hero__stat-divider{width:100%;height:1px;background:rgba(255,255,255,.2)}
  .vtn-hero__ctas{flex-direction:column}
  .vtn-hero__ctas .vtn-btn{width:100%;justify-content:center}
  .vtn-catwall__grid{grid-template-columns:1fr}
  .vtn-process__steps{grid-template-columns:1fr}
  .vtn-guide-grid{grid-template-columns:1fr}
  .vtn-product-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .vtn-combo-grid{grid-template-columns:1fr}
  .vtn-footer__grid{grid-template-columns:1fr;gap:28px}
  .vtn-footer__col{display:block;text-align:left}
  .vtn-footer__col--brand{max-width:320px;margin-inline:0}
  .vtn-footer__logo{margin-left:0;margin-right:0}
  .vtn-footer__heading{margin-bottom:10px}
  .vtn-footer__links{gap:6px}
  .vtn-footer__contact{max-width:320px;margin-inline:0}
  .vtn-sticky-cta{display:flex}
  .vtn-footer{padding-bottom:80px}
  .vtn-section{padding:48px 0}
  .vtn-form-row{grid-template-columns:1fr}
  .vtn-post-card{grid-template-columns:1fr}
  .vtn-archive-toolbar{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (max-width:782px){
  body.admin-bar .vtn-nav{top:calc(var(--header-h) + 46px)}
  body.admin-bar .vtn-nav{max-height:calc(100vh - var(--header-h) - 46px)}
}

@media (max-width:480px) {
  .vtn-product-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .vtn-product-card__body{padding:12px}
  .vtn-product-card__actions{flex-direction:column}
  .vtn-hero__title{font-size:1.6rem}
  .vtn-hero-search-form__btn{padding:0 14px;font-size:.82rem}
  .vtn-post-toc{padding:18px 16px;border-radius:20px}
  .vtn-post-toc__head{align-items:flex-start;flex-direction:column}
  .vtn-post-toc__item a{grid-template-columns:28px 1fr;padding:8px 6px;font-size:.86rem}
  .vtn-post-toc__item--h3 a{padding-left:10px}
}

/* ─── Lightbox ─────────────────────────────────────────────── */
#vtn-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .3s;
}
#vtn-lightbox.is-open { opacity: 1; }
.lb-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7,24,44,.92);
}
.lb-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
}
.lb-content img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 14px;
  display: block;
}
.lb-close {
  position: absolute;
  top: -18px;
  right: -18px;
  width: 40px;
  height: 40px;
  background: white;
  border: none;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  color: #07182c;
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}
.lb-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: rgba(0,0,0,.45);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  z-index: 2;
  transition: background .2s;
  backdrop-filter: blur(6px);
  user-select: none;
}
.lb-nav:hover { background: rgba(0,0,0,.72); }
.lb-prev { left: -60px; }
.lb-next { right: -60px; }
.lb-counter {
  position: absolute;
  bottom: -32px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.75);
  font-size: .82rem;
  white-space: nowrap;
  pointer-events: none;
}
@media (max-width: 680px) {
  .lb-prev { left: 8px; }
  .lb-next { right: 8px; }
}

/* ─── Toast notification ─────────────────────────────────── */
.vtn-toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #07182c;
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  z-index: 9998;
  opacity: 0;
  transition: opacity .3s, transform .3s;
  white-space: nowrap;
  pointer-events: none;
  max-width: 90vw;
  text-align: center;
}
.vtn-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── Back to top ──────────────────────────────────────────── */
#back-to-top {
  position: fixed;
  bottom: 100px;
  right: 22px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--blue, #0077ff);
  color: white;
  border: none;
  box-shadow: 0 8px 24px rgba(0,119,255,.35);
  cursor: pointer;
  display: grid;
  place-items: center;
  z-index: 200;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .3s, transform .3s;
  font-size: 18px;
}
#back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
}
#back-to-top:hover {
  background: #005fcc;
}

/* ─── Quote table ──────────────────────────────────────────── */
.quote-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.quote-table th {
  text-align: left;
  padding: 10px 12px;
  background: #f0f8ff;
  color: #1e3a5f;
  font-weight: 700;
  border-bottom: 2px solid #ddeaf4;
}
.quote-table td {
  padding: 12px;
  border-bottom: 1px solid var(--line, rgba(16,34,53,.1));
  vertical-align: middle;
}
.quote-table .qty-input {
  width: 70px;
  padding: 6px 8px;
  border: 1px solid #c8dde9;
  border-radius: 8px;
  font-size: 14px;
  text-align: center;
}
.quote-table .btn-remove-quote {
  background: #fee2e2;
  color: #991b1b;
  border: none;
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-weight: 700;
}
.quote-table .sku {
  color: var(--muted, #607487);
  font-family: monospace;
}
.empty-quote {
  text-align: center;
  padding: 48px;
  color: var(--muted, #607487);
  font-size: 16px;
}
.empty-quote a {
  color: var(--blue, #0077ff);
  font-weight: 700;
}

/* ─── Mobile menu drawer ──────────────────────────────────── */
#mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 90vw);
  height: 100%;
  background: #07182c;
  color: white;
  z-index: 500;
  padding: 28px 24px;
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.4,0,.2,1);
  overflow-y: auto;
}
#mobile-drawer.is-open { transform: translateX(0); }
#mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7,24,44,.6);
  z-index: 499;
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s;
}
#mobile-overlay.is-visible { opacity: 1; pointer-events: all; }
#mobile-drawer-close {
  background: none;
  border: none;
  color: white;
  font-size: 26px;
  cursor: pointer;
  float: right;
  line-height: 1;
}
#mobile-drawer .menu-list {
  list-style: none;
  padding: 0;
  margin: 40px 0 0;
}
#mobile-drawer .menu-list li { border-bottom: 1px solid rgba(255,255,255,.08); }
#mobile-drawer .menu-list a {
  display: block;
  padding: 14px 0;
  color: #d4eeff;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
}
.submenu-toggle {
  background: none;
  border: none;
  color: rgba(255,255,255,.5);
  cursor: pointer;
  float: right;
  padding: 14px 0;
}
.submenu-toggle.is-rotated svg { transform: rotate(180deg); }
.sub-menu.is-open { display: block !important; }

/* ─── Sticky product bar ──────────────────────────────────── */
.sticky-product-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  border-top: 1px solid var(--line, rgba(16,34,53,.1));
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  z-index: 190;
  box-shadow: 0 -8px 28px rgba(7,24,44,.1);
  transform: translateY(100%);
  transition: transform .3s;
}
.sticky-product-bar.is-visible { transform: translateY(0); }

/* ─── Counter animation targets ───────────────────────────── */
[data-count] { display: inline-block; }

/* ─── Filter chips active state ───────────────────────────── */
.filter-chip.is-active {
  background: var(--blue, #0077ff);
  color: white;
  border-color: var(--blue, #0077ff);
}

/* ==========================================================================
   HERO — 2-column grid layout (matching demo)
   ========================================================================== */
.vtn-hero-wrap { padding: 34px 0 28px; }
.vtn-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 24px;
  align-items: stretch;
}

/* Left dark card */
.vtn-hero-left {
  background: linear-gradient(145deg, #07182c 0%, #0c3564 55%, #0476c9 100%);
  border-radius: 38px;
  padding: 42px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(7,24,44,.12);
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.vtn-hero-left::before {
  content: "";
  position: absolute;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: rgba(0,212,200,.23);
  filter: blur(10px);
  right: -120px; top: -130px;
  pointer-events: none;
}
.vtn-hero-left::after {
  content: "";
  position: absolute;
  inset: auto -60px -110px auto;
  width: 360px; height: 260px;
  background: radial-gradient(circle, rgba(255,255,255,.22), transparent 66%);
  transform: rotate(-12deg);
  pointer-events: none;
}
.vtn-hero-left__content { position: relative; z-index: 2; }

/* Eyebrow */
.vtn-eyebrow {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  border: 1px solid rgba(255,255,255,.24);
  padding: 9px 13px;
  border-radius: 999px;
  background: rgba(255,255,255,.09);
  font-weight: 700;
  font-size: 13px;
  color: #dffcff;
  margin-bottom: 18px;
}
.vtn-eyebrow--light {
  border-color: #d4eef6;
  background: #f4fdff;
  color: #006b9c;
}
.vtn-eyebrow__dot { font-size: 10px; }

/* Hero title */
.vtn-hero-left__title {
  font-size: clamp(32px, 4.5vw, 62px);
  line-height: 1.04;
  margin: 0 0 16px;
  letter-spacing: -2.5px;
  font-weight: 900;
  color: #fff;
}

/* Hero desc */
.vtn-hero-left__desc {
  font-size: 16px;
  line-height: 1.75;
  color: #d7e9f7;
  margin: 0 0 26px;
  max-width: 600px;
}

/* Hero search */
.vtn-hero-search {
  background: white;
  border-radius: 20px;
  padding: 10px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  box-shadow: 0 20px 50px rgba(0,0,0,.18);
  max-width: 620px;
}
.vtn-hero-search__input {
  border: 0;
  outline: 0;
  font: 600 14px 'Be Vietnam Pro', sans-serif;
  padding: 0 14px;
  color: #102235;
  min-width: 0;
  background: transparent;
}
.vtn-hero-search .vtn-btn { flex-shrink: 0; height: 42px; }

/* Hero stats */
.vtn-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 28px;
  max-width: 620px;
  position: relative;
  z-index: 2;
}
.vtn-hero-stat {
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 18px;
  padding: 16px;
}
.vtn-hero-stat b {
  font-size: 22px;
  font-weight: 800;
  display: block;
  color: #fff;
}
.vtn-hero-stat span { font-size: 12px; color: #cfe8f8; }

/* Pipe art */
.vtn-pipe-art {
  position: absolute;
  right: 26px; bottom: 24px;
  width: 290px; height: 190px;
  z-index: 1;
  opacity: .9;
  pointer-events: none;
}
.vtn-pipe-art__tube {
  position: absolute;
  border: 24px solid rgba(255,255,255,.9);
  border-radius: 40px;
  filter: drop-shadow(0 20px 30px rgba(0,0,0,.18));
}
.vtn-pipe-art__tube--1 {
  width: 210px; height: 92px;
  right: 0; bottom: 48px;
  border-left-color: transparent;
  border-bottom-color: transparent;
  transform: rotate(-7deg);
}
.vtn-pipe-art__tube--2 {
  width: 118px; height: 118px;
  right: 128px; bottom: 0;
  border-top-color: transparent;
  border-right-color: transparent;
}
.vtn-pipe-art__valve {
  position: absolute;
  right: 62px; bottom: 88px;
  width: 74px; height: 74px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ffba55, #ff7427);
  box-shadow: 0 16px 32px rgba(255,138,42,.34);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 900;
  font-size: 13px;
}

/* Right column */
.vtn-hero-right {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 18px;
}

/* Quick card */
.vtn-quick-card {
  background: #fff;
  border-radius: 32px;
  padding: 22px;
  box-shadow: 0 24px 70px rgba(7,24,44,.12);
  border: 1px solid rgba(255,255,255,.7);
}
.vtn-quick-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin-bottom: 18px;
}
.vtn-quick-card__title {
  margin: 0;
  font-size: 22px;
  letter-spacing: -1px;
  color: #102235;
}
.vtn-quick-card__sub {
  margin: 4px 0 0;
  color: #607487;
  font-size: 13px;
}

/* Quick category items */
.vtn-quick-cats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.vtn-quick-cat {
  border: 1px solid rgba(16,34,53,.1);
  border-radius: 20px;
  padding: 14px;
  background: linear-gradient(180deg, #fff, #f7fbff);
  display: flex;
  gap: 10px;
  align-items: center;
  text-decoration: none;
  color: inherit;
  transition: transform .22s, box-shadow .22s;
}
.vtn-quick-cat:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(7,24,44,.1);
  color: inherit;
}
.vtn-quick-cat__icon {
  width: 40px; height: 40px;
  border-radius: 13px;
  background: #eaf7ff;
  display: grid;
  place-items: center;
  font-size: 20px;
  flex: 0 0 auto;
}
.vtn-quick-cat__info { display: flex; flex-direction: column; gap: 2px; }
.vtn-quick-cat__info b { font-size: 13px; color: #102235; }
.vtn-quick-cat__info span { font-size: 11px; color: #607487; }

/* Deal card */
.vtn-deal-card {
  background: linear-gradient(135deg, #fff 0%, #eafcff 100%);
  border-radius: 32px;
  padding: 24px;
  box-shadow: 0 24px 70px rgba(7,24,44,.12);
  position: relative;
  overflow: hidden;
  min-height: 200px;
  border: 1px solid white;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.vtn-deal-card::after {
  content: "";
  position: absolute;
  width: 220px; height: 220px;
  background: linear-gradient(135deg, rgba(0,119,255,.13), rgba(0,212,200,.18));
  border-radius: 60px;
  right: -70px; bottom: -80px;
  transform: rotate(22deg);
  pointer-events: none;
}
.vtn-deal-card__title {
  font-size: 26px;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -1.2px;
  color: #102235;
}
.vtn-deal-card__desc { color: #607487; line-height: 1.6; margin: 0; font-size: 14px; }
.vtn-deal-card .vtn-btn { align-self: flex-start; position: relative; z-index: 1; margin-top: auto; }

/* ── Hero responsive ──────────────────────────────── */
@media (max-width: 1050px) {
  .vtn-hero-grid { grid-template-columns: 1fr; }
  .vtn-hero-left { min-height: auto; }
  .vtn-pipe-art { opacity: .4; }
  .vtn-hero-right { grid-template-rows: auto auto; }
}
@media (max-width: 700px) {
  .vtn-hero-wrap { padding: 16px 0 20px; }
  .vtn-hero-left { padding: 24px; border-radius: 26px; }
  .vtn-hero-left__title { letter-spacing: -1.5px; }
  .vtn-hero-left__desc { font-size: 14px; }
  .vtn-hero-search { grid-template-columns: 1fr; }
  .vtn-hero-search .vtn-btn { justify-content: center; }
  .vtn-hero-stats { grid-template-columns: 1fr; }
  .vtn-quick-cats { grid-template-columns: 1fr; }
}

/* ==========================================================================
   MEGA STRIP — numbered 6-column category strip
   ========================================================================== */
.vtn-mega-strip { padding: 18px 0 8px; }
.vtn-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.vtn-strip-item {
  background: #fff;
  border: 1px solid rgba(16,34,53,.1);
  border-radius: 20px;
  padding: 16px;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 8px 24px rgba(7,24,44,.05);
  text-decoration: none;
  color: inherit;
  transition: box-shadow .22s, transform .22s;
}
.vtn-strip-item:hover {
  box-shadow: 0 14px 36px rgba(7,24,44,.1);
  transform: translateY(-2px);
  color: inherit;
}
.vtn-strip-item__num { font-size: 11px; color: #8ba0b3; font-weight: 800; }
.vtn-strip-item__name { font-size: 14px; font-weight: 700; color: #102235; }
.vtn-strip-item__desc { font-size: 11px; color: #607487; }
@media (max-width: 900px) { .vtn-strip { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) { .vtn-strip { grid-template-columns: repeat(2, 1fr); } }

/* ==========================================================================
   CATEGORY WALL — featured big card + grid
   ========================================================================== */
.vtn-catwall-v2 { background: #f4f9fb; }
.vtn-catwall-v2-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr .85fr;
  gap: 16px;
}
.vtn-wall-card {
  border-radius: 28px;
  padding: 24px;
  min-height: 230px;
  background: white;
  border: 1px solid rgba(16,34,53,.08);
  position: relative;
  overflow: hidden;
  box-shadow: 0 14px 40px rgba(7,24,44,.07);
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  transition: transform .22s, box-shadow .22s;
}
.vtn-wall-card:hover { transform: translateY(-3px); box-shadow: 0 20px 50px rgba(7,24,44,.12); }
.vtn-wall-card--big {
  grid-row: span 2;
  min-height: 480px;
  background: linear-gradient(145deg, #08223c, #0066d9);
  color: white;
}
.vtn-wall-card__title { font-size: 24px; letter-spacing: -.8px; margin: 0; }
.vtn-wall-card--big .vtn-wall-card__title { color: #fff; font-size: 28px; }
.vtn-wall-card__desc { color: #607487; line-height: 1.6; margin: 0; font-size: 14px; }
.vtn-wall-card--big .vtn-wall-card__desc { color: #d8f3ff; }
.vtn-wall-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: auto; }
.vtn-wall-tag {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #edf6fb;
  font-weight: 700;
  color: #345;
}
.vtn-wall-card--big .vtn-wall-tag { background: rgba(255,255,255,.14); color: #e9fbff; }
.vtn-wall-card__shape {
  position: absolute;
  right: -40px; bottom: -50px;
  width: 220px; height: 220px;
  border-radius: 42% 58% 62% 38%;
  background: linear-gradient(135deg, rgba(0,212,200,.32), rgba(255,255,255,.18));
  pointer-events: none;
}

@media (max-width: 1050px) {
  .vtn-catwall-v2-grid { grid-template-columns: 1fr 1fr; }
  .vtn-wall-card--big { grid-column: span 2; min-height: 340px; }
}
@media (max-width: 600px) {
  .vtn-catwall-v2-grid { grid-template-columns: 1fr; }
  .vtn-wall-card--big { grid-column: auto; min-height: 260px; }
}

/* ==========================================================================
   PRODUCT ZONE — dark navy background, filter pills
   ========================================================================== */
.vtn-product-zone {
  background: #07182c;
  color: white;
  border-radius: 44px;
  padding: 34px;
  box-shadow: 0 24px 70px rgba(7,24,44,.12);
  position: relative;
  overflow: hidden;
}
.vtn-product-zone::before {
  content: "";
  position: absolute;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: rgba(0,119,255,.15);
  right: -160px; top: -160px;
  pointer-events: none;
}
.vtn-product-zone__header {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 22px;
}
.vtn-product-zone__title {
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 800;
  color: #fff;
  margin: 0;
  letter-spacing: -1.5px;
}
.vtn-product-zone__desc { color: #cce9ff; font-size: 14px; margin: 6px 0 0; }
.vtn-product-zone__link { color: #9efbff; font-weight: 800; font-size: 14px; white-space: nowrap; }
.vtn-product-zone__link:hover { color: #fff; }

/* Filter pills */
.vtn-filter-pills {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.vtn-filter-pill {
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.14);
  font-size: 13px;
  font-weight: 700;
  color: #dff4ff;
  cursor: pointer;
  transition: background .2s, color .2s;
  white-space: nowrap;
}
.vtn-filter-pill:hover,
.vtn-filter-pill.is-active { background: white; color: #08223c; }

/* Product grid in zone */
.vtn-product-zone .vtn-product-grid {
  position: relative;
  z-index: 2;
}
.vtn-product-zone .vtn-product-grid { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1000px) {
  .vtn-product-zone .vtn-product-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .vtn-product-zone { padding: 20px; border-radius: 28px; }
  .vtn-product-zone .vtn-product-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
}

/* ==========================================================================
   COMBO SECTION — solution-grid style (3 cards)
   ========================================================================== */
.vtn-solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.vtn-solution-card {
  background: #fff;
  border: 1px solid rgba(16,34,53,.08);
  border-radius: 28px;
  padding: 28px 26px 24px;
  box-shadow: 0 14px 40px rgba(7,24,44,.07);
  transition: box-shadow var(--transition), transform var(--transition);
}
.vtn-solution-card:hover {
  box-shadow: 0 20px 56px rgba(7,24,44,.12);
  transform: translateY(-2px);
}
.vtn-solution-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.vtn-solution-card__icon {
  width: 52px; height: 52px;
  border-radius: 16px;
  background: rgba(16,34,53,.06);   /* neutral light gray — matches demo */
  display: grid;
  place-items: center;
  font-size: 26px;
  flex-shrink: 0;
}
/* Type badge — dark bold text matching demo */
.vtn-solution-card__type {
  font-size: 13px;
  font-weight: 700;
  color: #102235;
  letter-spacing: -.2px;
}
.vtn-solution-card__title {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -.5px;
  margin: 0 0 10px;
  color: #102235;
  line-height: 1.25;
}
.vtn-solution-card__desc {
  color: #607487;
  line-height: 1.65;
  margin: 0 0 18px;
  font-size: .9rem;
}
/* Checklist — teal tick + dark text */
.vtn-solution-check {
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: .875rem;
  color: #102235;
  margin-bottom: 20px;
}
.vtn-solution-check span { display: flex; align-items: flex-start; gap: 8px; line-height: 1.4; }
.vtn-solution-check span::before {
  content: "✓";
  color: #0fba7c;
  font-weight: 900;
  font-size: .8rem;
  flex-shrink: 0;
  margin-top: 1px;
}
.vtn-solution-card__actions { display: flex; gap: 8px; }
.vtn-solution-card__actions .vtn-btn { flex: 1; font-size: .8125rem; }

@media (max-width: 900px) { .vtn-solution-grid { grid-template-columns: 1fr; gap: 14px; } }
@media (min-width: 600px) and (max-width: 900px) { .vtn-solution-grid { grid-template-columns: repeat(2, 1fr); } }

/* ==========================================================================
   PROCESS SECTION — 2-column layout (left text + right steps)
   ========================================================================== */
.vtn-process-v2 { background: #f4f9fb; }
.vtn-process-v2-grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 20px;
  align-items: stretch;
}
.vtn-process-v2-left {
  background: linear-gradient(145deg, #fff, #effcff);
  border-radius: 32px;
  padding: 32px;
  border: 1px solid white;
  box-shadow: 0 24px 70px rgba(7,24,44,.12);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.vtn-process-v2-left .vtn-eyebrow { align-self: flex-start; }
.vtn-process-v2__title {
  font-size: clamp(26px, 3vw, 38px);
  letter-spacing: -1.6px;
  margin: 0;
  color: #07182c;
  line-height: 1.1;
}
.vtn-process-v2__desc { color: #607487; line-height: 1.7; margin: 0; }
.vtn-process-v2-left .vtn-btn { align-self: flex-start; margin-top: auto; }

/* Steps list */
.vtn-process-steps { display: flex; flex-direction: column; gap: 14px; }
.vtn-process-step {
  background: white;
  border: 1px solid rgba(16,34,53,.08);
  border-radius: 24px;
  padding: 20px;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: start;
  box-shadow: 0 10px 30px rgba(7,24,44,.06);
}
.vtn-process-step__num {
  width: 56px; height: 56px;
  border-radius: 18px;
  background: #07182c;
  color: white;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 15px;
  flex-shrink: 0;
}
.vtn-process-step__title { margin: 0 0 6px; font-size: 16px; color: #102235; }
.vtn-process-step__desc { margin: 0; color: #607487; line-height: 1.6; font-size: 13px; }

@media (max-width: 900px) {
  .vtn-process-v2-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .vtn-process-step { grid-template-columns: 1fr; }
}

/* ==========================================================================
   CTA SECTION — boxed rounded gradient style
   ========================================================================== */
.vtn-cta-v2 { padding: 48px 0; }
.vtn-cta-v2__inner {
  background: linear-gradient(135deg, #00d4c8, #0077ff);
  border-radius: 40px;
  padding: 36px;
  color: white;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  box-shadow: 0 24px 70px rgba(7,24,44,.12);
  overflow: hidden;
  position: relative;
}
.vtn-cta-v2__inner::after {
  content: "";
  position: absolute;
  right: -80px; top: -100px;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  pointer-events: none;
}
.vtn-cta-v2__title {
  font-size: clamp(22px, 3vw, 34px);
  letter-spacing: -1.2px;
  margin: 0 0 8px;
  color: #fff;
}
.vtn-cta-v2__desc { margin: 0; color: #eaffff; line-height: 1.6; max-width: 600px; }
.vtn-cta-v2 .vtn-btn--white { position: relative; z-index: 2; }

@media (max-width: 900px) {
  .vtn-cta-v2__inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 600px) {
  .vtn-cta-v2__inner { padding: 24px; border-radius: 28px; }
  .vtn-cta-v2__title { font-size: 22px; }
}

/* ==========================================================================
   HEADER — topbar pill style matching demo
   ========================================================================== */
.vtn-topbar__pill {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 5px 10px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  color: #bfefff;
  font-size: 13px;
  text-decoration: none;
}
.vtn-topbar__pill:hover { color: #fff; border-color: rgba(255,255,255,.3); }

/* ── vtn-nav mobile menu toggle — link to new header ─── */
.vtn-header__menu-toggle { display: none; }
@media (max-width: 768px) {
  .vtn-header__menu-toggle { display: flex; }
}

/* ==========================================================================
   SECTION SPACING utility
   ========================================================================== */
.vtn-section-header--left { text-align: left; }
.vtn-section-header--left .vtn-section-desc { margin-inline: 0; }
.vtn-products-section__cta { text-align: center; margin-top: 32px; }

/* Fix: vtn-nav open state for mobile */
@media (max-width: 768px) {
  .vtn-nav.open { left: 0; }
  .vtn-mobile-overlay.active { display: block; opacity: 1; }
}

/* ==========================================================================
   UTILITIES — title-row, link-more, etc.
   ========================================================================== */
.vtn-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 24px;
}
.vtn-link-more {
  font-weight: 800;
  color: var(--clr-primary);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  flex-shrink: 0;
}
.vtn-link-more:hover { color: var(--clr-primary-dark); text-decoration: underline; }
@media (max-width: 600px) {
  .vtn-title-row { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ==========================================================================
   TOPBAR — pill hotline style
   ========================================================================== */
.vtn-topbar { font-size: 13px; }
.vtn-topbar__inner {
  padding: 9px 0;
  flex-wrap: wrap;
  gap: 14px;
}
@media (max-width: 768px) {
  .vtn-topbar { display: none; }
}

/* ==========================================================================
   ADMIN NOTICE — ACF missing
   ========================================================================== */
.vtn-admin-notice {
  background: #fff3cd;
  border-left: 4px solid #ffc107;
  padding: 12px 16px;
  margin: 5px 0 15px;
  font-size: 14px;
}

/* ==========================================================================
   BACK TO TOP BUTTON
   ========================================================================== */
.vtn-back-top {
  position: fixed;
  bottom: 88px;
  right: 20px;
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-primary, #0077ff);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,119,255,.35);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .25s, transform .25s;
  pointer-events: none;
}
.vtn-back-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.vtn-back-top:hover {
  background: var(--clr-navy, #07182c);
}

/* ==========================================================================
   ADDITIONS — missing CSS for template-parts HTML classes
   ========================================================================== */

/* A. Breadcrumb list */
.vtn-breadcrumb__list{display:flex;align-items:center;gap:4px;flex-wrap:wrap;list-style:none;padding:0;margin:0}
.vtn-breadcrumb__nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}

/* B. Hero Grid */
.vtn-hero-wrap{background:linear-gradient(135deg,#07182c 0%,#0c3564 55%,#0057b7 100%);padding:48px 0 56px;position:relative;overflow:hidden}
.vtn-hero-wrap::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 70% 20%,rgba(0,212,200,.18) 0%,transparent 45%),radial-gradient(circle at 10% 80%,rgba(0,119,255,.22) 0%,transparent 40%)}
.vtn-hero-grid{display:grid;grid-template-columns:1fr 420px;gap:32px;align-items:stretch;position:relative;z-index:1}
.vtn-hero-left{background:rgba(7,24,44,.55);border:1px solid rgba(255,255,255,.1);border-radius:40px;padding:40px 44px 36px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);position:relative;overflow:hidden}
.vtn-hero-left__content{position:relative;z-index:1}
.vtn-hero-left__title{font-size:clamp(1.55rem,3.2vw,2.25rem);font-weight:800;color:#fff;line-height:1.2;margin:16px 0 14px;letter-spacing:-.02em}
.vtn-hero-left__desc{font-size:.9rem;color:rgba(255,255,255,.78);line-height:1.7;margin-bottom:24px}
.vtn-eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;color:#00d4c8;text-transform:uppercase;letter-spacing:.08em}
.vtn-eyebrow__dot{font-size:.5rem}
.vtn-eyebrow--light{color:rgba(255,255,255,.75)}
.vtn-hero-search{display:flex;background:#fff;border-radius:9999px;padding:5px 5px 5px 18px;box-shadow:0 8px 30px rgba(0,0,0,.25);margin-bottom:28px}
.vtn-hero-search__input{flex:1;border:none;outline:none;font-size:.9rem;color:#102235;background:transparent;min-width:0}
.vtn-hero-search .vtn-btn{flex-shrink:0;height:38px;padding:0 20px;font-size:.85rem}
@keyframes vtn-stat-shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.vtn-hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:24px}
.vtn-hero-stat{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.15);border-top:2px solid #00d4c8;border-radius:18px;padding:16px;display:flex;flex-direction:column;gap:5px;position:relative;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,background .25s ease;cursor:default}
.vtn-hero-stat:nth-child(2){border-top-color:#3b9eff}
.vtn-hero-stat:nth-child(3){border-top-color:#a78bfa}
.vtn-hero-stat::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.12) 50%,transparent 60%);transform:translateX(-100%);pointer-events:none}
.vtn-hero-stat:hover::before{animation:vtn-stat-shimmer .55s ease forwards}
.vtn-hero-stat:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,212,200,.22),0 0 0 1px rgba(0,212,200,.28);background:rgba(255,255,255,.14)}
.vtn-hero-stat b{font-size:1.5rem;font-weight:800;color:#fff;line-height:1;text-shadow:0 0 20px rgba(0,212,200,.5)}
.vtn-hero-stat span{font-size:.7rem;color:rgba(255,255,255,.68);line-height:1.4}
.vtn-pipe-art{position:absolute;bottom:-8px;right:-8px;width:90px;opacity:.18;pointer-events:none}
.vtn-pipe-art__tube{position:absolute;background:rgba(0,212,200,.9);border-radius:6px}
.vtn-pipe-art__tube--1{width:8px;height:60px;right:28px;bottom:24px}
.vtn-pipe-art__tube--2{width:48px;height:8px;right:8px;bottom:24px}
.vtn-pipe-art__valve{position:absolute;right:8px;bottom:40px;width:20px;height:20px;background:#00d4c8;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:.45rem;font-weight:900;color:#07182c}
.vtn-hero-right{display:flex;flex-direction:column;gap:16px;height:100%}
.vtn-quick-card{background:#fff;border-radius:40px;padding:24px;box-shadow:0 24px 70px rgba(7,24,44,.12);flex:1;display:flex;flex-direction:column}
.vtn-quick-card__head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:16px}
.vtn-quick-card__title{font-size:1rem;font-weight:700;color:#07182c;margin-bottom:2px}
.vtn-quick-card__sub{font-size:.75rem;color:#607487}
.vtn-quick-cats{display:flex;flex-direction:column;gap:4px;flex:1;justify-content:space-between}
.vtn-quick-cat{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:26px;transition:background .25s ease;text-decoration:none}
.vtn-quick-cat:hover{background:#e8f2ff}
.vtn-quick-cat__icon{font-size:1.25rem;flex-shrink:0;width:32px;text-align:center}
.vtn-quick-cat__info{display:flex;flex-direction:column;gap:1px}
.vtn-quick-cat__info b{font-size:.85rem;font-weight:700;color:#102235}
.vtn-quick-cat__info span{font-size:.72rem;color:#607487}
.vtn-quick-cat:hover .vtn-quick-cat__info b{color:#0077ff}
.vtn-deal-card{background:linear-gradient(135deg,#07182c 0%,#0057b7 100%);border-radius:40px;padding:24px;color:#fff}
.vtn-deal-card__title{font-size:1.05rem;font-weight:700;color:#fff;margin:8px 0 6px}
.vtn-deal-card__desc{font-size:.82rem;color:rgba(255,255,255,.78);line-height:1.6;margin-bottom:16px}

@media (max-width:1024px){.vtn-hero-grid{grid-template-columns:1fr 360px}}
@media (max-width:860px){.vtn-hero-grid{grid-template-columns:1fr}.vtn-hero-right{display:none}}
@media (max-width:768px){
  .vtn-hero-wrap{padding:32px 0 40px}
  .vtn-hero-left{padding:24px 20px;border-radius:26px}
  .vtn-hero-left__title{font-size:1.4rem}
  .vtn-hero-stats{gap:8px}
  .vtn-hero-stat{padding:12px}
}

/* C. Mega Strip */
.vtn-mega-strip{background:linear-gradient(180deg,#eef5ff 0%,#fff 60%);border-block:1px solid rgba(0,87,183,.13);overflow-x:auto}
.vtn-strip{display:flex;align-items:stretch}
.vtn-strip-item{display:flex;flex-direction:column;gap:5px;padding:20px 22px;flex:1;min-width:140px;text-decoration:none;border-right:1px solid rgba(0,87,183,.08);position:relative;overflow:hidden;transition:background .25s ease,transform .25s ease,box-shadow .25s ease}
.vtn-strip-item:last-child{border-right:none}
.vtn-strip-item::after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;transform:scaleX(0);transform-origin:left;transition:transform .32s ease}
.vtn-strip-item:nth-child(1)::after{background:linear-gradient(90deg,#0057b7,#3b9eff)}
.vtn-strip-item:nth-child(2)::after{background:linear-gradient(90deg,#0077ff,#00c6ff)}
.vtn-strip-item:nth-child(3)::after{background:linear-gradient(90deg,#00a3e0,#00d4c8)}
.vtn-strip-item:nth-child(4)::after{background:linear-gradient(90deg,#00b4a8,#7ceecd)}
.vtn-strip-item:nth-child(5)::after{background:linear-gradient(90deg,#7c3aed,#a78bfa)}
.vtn-strip-item:nth-child(6)::after{background:linear-gradient(90deg,#ff6b35,#ffb347)}
.vtn-strip-item:hover::after{transform:scaleX(1)}
.vtn-strip-item:hover{background:linear-gradient(180deg,#e6f0ff 0%,#f5faff 100%);transform:translateY(-3px);box-shadow:0 8px 28px rgba(0,87,183,.13)}
.vtn-strip-item__num{font-size:.82rem;font-weight:800;letter-spacing:.07em;line-height:1}
.vtn-strip-item:nth-child(1) .vtn-strip-item__num{color:#0057b7}
.vtn-strip-item:nth-child(2) .vtn-strip-item__num{color:#0077ff}
.vtn-strip-item:nth-child(3) .vtn-strip-item__num{color:#00a3e0}
.vtn-strip-item:nth-child(4) .vtn-strip-item__num{color:#00998f}
.vtn-strip-item:nth-child(5) .vtn-strip-item__num{color:#7c3aed}
.vtn-strip-item:nth-child(6) .vtn-strip-item__num{color:#e05a20}
.vtn-strip-item__name{font-size:1rem;font-weight:700;color:#07182c;display:block;transition:color .22s ease}
.vtn-strip-item__desc{font-size:.73rem;color:#607487;display:block}
.vtn-strip-item:hover .vtn-strip-item__name{color:#0057b7}
@media (max-width:768px){.vtn-strip-item{min-width:120px;padding:14px 14px}}
@media (max-width:480px){.vtn-strip-item{min-width:100px;padding:12px 10px}.vtn-strip-item__name{font-size:.88rem}}

@media (max-width:768px){
  .vtn-mega-strip{padding:14px 0;background:linear-gradient(180deg,#eef7fa 0%,#fff 100%)}
  .vtn-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;overflow:visible}
  .vtn-strip-item{min-width:0;width:100%;padding:12px 10px;border:1px solid rgba(16,34,53,.08);border-radius:16px;background:#fff;box-shadow:0 10px 24px rgba(7,24,44,.06)}
  .vtn-strip-item:nth-child(n+7){display:none}
  .vtn-strip-item__name{font-size:.82rem;line-height:1.35}
  .vtn-strip-item__desc{font-size:.7rem;line-height:1.4}
}

@media (max-width:380px){
  .vtn-strip{gap:8px}
  .vtn-strip-item{padding:11px 8px;border-radius:14px}
  .vtn-strip-item__name{font-size:.78rem}
  .vtn-strip-item__desc{font-size:.68rem}
}

/* D. Title Row + link-more */
.vtn-title-row{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:32px;flex-wrap:wrap}
.vtn-link-more{font-size:.88rem;font-weight:600;color:#0077ff;text-decoration:none;white-space:nowrap;flex-shrink:0;transition:color .25s ease}
.vtn-link-more:hover{color:#005fcc}

/* E. Category Wall v2 */
.vtn-catwall-v2{background:#f4f9fb}
.vtn-catwall-v2-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:16px;align-items:stretch}
.vtn-wall-card{display:flex;flex-direction:column;gap:10px;padding:24px;background:#fff;border-radius:32px;border:1px solid rgba(16,34,53,.1);text-decoration:none;transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;position:relative;overflow:hidden}
.vtn-wall-card:hover{box-shadow:0 24px 70px rgba(7,24,44,.12);transform:translateY(-3px);border-color:#0077ff}
.vtn-wall-card--big{background:linear-gradient(135deg,#07182c 0%,#0057b7 100%);color:#fff;padding:32px 28px}
.vtn-wall-card__title{font-size:1rem;font-weight:700;color:#102235;line-height:1.25}
.vtn-wall-card--big .vtn-wall-card__title{font-size:1.25rem;color:#fff}
.vtn-wall-card__desc{font-size:.78rem;color:#607487;line-height:1.6;flex:1}
.vtn-wall-card--big .vtn-wall-card__desc{color:rgba(255,255,255,.78)}
.vtn-wall-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.vtn-wall-tag{padding:3px 10px;border-radius:9999px;font-size:.68rem;font-weight:600;background:#e8f2ff;color:#0077ff}
.vtn-wall-card--big .vtn-wall-tag{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.25)}
.vtn-wall-card__shape{position:absolute;bottom:-24px;right:-24px;width:120px;height:120px;border-radius:50%;background:rgba(0,212,200,.15);pointer-events:none}
@media (max-width:1024px){.vtn-catwall-v2-grid{grid-template-columns:1fr 1fr}.vtn-wall-card--big{grid-column:1/-1}}
@media (max-width:600px){.vtn-catwall-v2-grid{grid-template-columns:1fr 1fr;gap:10px}}
@media (max-width:420px){.vtn-catwall-v2-grid{grid-template-columns:1fr}}

/* F. Product Zone */
.vtn-product-zone{background:#07182c;border-radius:40px;padding:40px 36px 44px}
.vtn-product-zone__header{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.vtn-product-zone__title{font-size:clamp(1.1rem,2.5vw,1.5rem);font-weight:800;color:#fff;margin-bottom:4px}
.vtn-product-zone__desc{font-size:.83rem;color:rgba(255,255,255,.65)}
.vtn-product-zone__link{font-size:.85rem;font-weight:600;color:#00d4c8;text-decoration:none;white-space:nowrap;flex-shrink:0;transition:color .25s ease}
.vtn-product-zone__link:hover{color:#fff}
.vtn-filter-pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.vtn-filter-pill{padding:7px 18px;border-radius:9999px;font-size:.8rem;font-weight:600;color:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.2);text-decoration:none;transition:all .25s ease;cursor:pointer}
.vtn-filter-pill:hover,.vtn-filter-pill.is-active{background:#fff;color:#07182c;border-color:#fff}
.vtn-product-zone .vtn-product-grid{gap:16px}
.vtn-product-zone .vtn-product-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:#fff}
.vtn-product-zone .vtn-product-card:hover{background:rgba(255,255,255,.12);box-shadow:0 16px 44px rgba(0,0,0,.35)}
.vtn-product-zone .vtn-product-card__thumb{background:rgba(255,255,255,.04)}
.vtn-product-zone .vtn-product-card__title a{color:#fff}
.vtn-product-zone .vtn-product-card__title a:hover{color:#00d4c8}
.vtn-product-zone .vtn-product-card__sku{color:rgba(255,255,255,.5)}
.vtn-product-zone .vtn-price{color:#00d4c8}
.vtn-product-zone .vtn-price--old{color:rgba(255,255,255,.4)}
.vtn-product-zone .vtn-btn--secondary{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.2)}
.vtn-product-zone .vtn-btn--secondary:hover{background:#fff;color:#07182c}
.vtn-product-zone .vtn-btn--primary{background:#00d4c8;color:#07182c;border-color:#00d4c8}
.vtn-product-zone .vtn-btn--primary:hover{background:#00bbb0;border-color:#00bbb0}
@media (max-width:768px){.vtn-product-zone{padding:24px 16px 28px;border-radius:26px}}

/* G. Solution / Combo Section */
.vtn-solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.vtn-solution-card{background:#fff;border-radius:40px;padding:28px 24px;border:1px solid rgba(16,34,53,.1);box-shadow:0 16px 44px rgba(7,24,44,.07);display:flex;flex-direction:column;gap:12px;transition:box-shadow .25s ease,transform .25s ease}
.vtn-solution-card:hover{box-shadow:0 24px 70px rgba(7,24,44,.12);transform:translateY(-3px)}
.vtn-solution-card__top{display:flex;align-items:center;gap:10px}
.vtn-solution-card__icon{font-size:1.6rem;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:#e8f2ff;border-radius:26px;flex-shrink:0}
.vtn-solution-card__type{font-size:.72rem;font-weight:700;color:#0077ff;text-transform:uppercase;letter-spacing:.06em;padding:3px 10px;background:#e8f2ff;border-radius:9999px}
.vtn-solution-card__title{font-size:1.05rem;font-weight:700;color:#07182c;line-height:1.3}
.vtn-solution-card__desc{font-size:.83rem;color:#607487;line-height:1.65;flex:1}
.vtn-solution-check{display:flex;flex-direction:column;gap:6px}
.vtn-solution-check span{font-size:.82rem;color:#102235;padding-left:18px;position:relative}
.vtn-solution-check span::before{content:"\2713";position:absolute;left:0;color:#0fba7c;font-weight:700}
.vtn-solution-card__actions{display:flex;gap:8px;margin-top:auto}
.vtn-solution-card__actions .vtn-btn{flex:1}
@media (max-width:900px){.vtn-solution-grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.vtn-solution-grid{grid-template-columns:1fr}}

/* H. Process V2 */
.vtn-process-v2{background:#eef7fa}
.vtn-process-v2-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.vtn-process-v2-left{display:flex;flex-direction:column;gap:20px}
.vtn-process-v2-left .vtn-eyebrow--light{padding:8px 17px;border:1px solid rgba(0,119,255,.22);background:linear-gradient(180deg,#fff 0%,#eaf7ff 100%);color:#005fcc;box-shadow:0 8px 22px rgba(0,119,255,.14),inset 0 1px 0 rgba(255,255,255,.95);text-shadow:0 1px 0 rgba(255,255,255,.85)}
.vtn-process-v2__title{font-size:clamp(1.3rem,2.8vw,1.9rem);font-weight:800;color:#07182c;line-height:1.25}
.vtn-process-v2__desc{font-size:.9rem;color:#607487;line-height:1.75}
.vtn-process-steps{display:flex;flex-direction:column;gap:14px}
.vtn-process-step{display:flex;gap:20px;align-items:flex-start;background:#fff;border-radius:26px;padding:20px 22px;border:1px solid rgba(16,34,53,.1);box-shadow:0 16px 44px rgba(7,24,44,.07)}
.vtn-process-step__num{width:40px;height:40px;border-radius:10px;background:#0077ff;color:#fff;font-size:.88rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.vtn-process-step__title{font-size:.95rem;font-weight:700;color:#07182c;margin-bottom:4px}
.vtn-process-step__desc{font-size:.82rem;color:#607487;line-height:1.6}
@media (max-width:860px){.vtn-process-v2-grid{grid-template-columns:1fr;gap:36px}}

/* I. CTA v2 */
.vtn-cta-v2{padding:56px 0}
.vtn-cta-v2__inner{display:flex;justify-content:space-between;align-items:center;gap:32px;background:linear-gradient(135deg,#0077ff 0%,#00d4c8 100%);border-radius:40px;padding:44px 52px;flex-wrap:wrap}
.vtn-cta-v2__title{font-size:clamp(1.2rem,2.5vw,1.7rem);font-weight:800;color:#fff;margin-bottom:8px;line-height:1.25}
.vtn-cta-v2__desc{font-size:.9rem;color:rgba(255,255,255,.85);max-width:540px;line-height:1.65}
@media (max-width:768px){
  .vtn-cta-v2__inner{flex-direction:column;padding:28px 20px;align-items:flex-start;border-radius:26px}
  .vtn-cta-v2__inner .vtn-btn{width:100%;justify-content:center}
}

/* J. Guides section */
.vtn-guides-section{background:#eef7fa}

/* K. #vtn-back-top */
#vtn-back-top{position:fixed;bottom:100px;right:22px;width:48px;height:48px;border-radius:50%;background:#0077ff;color:#fff;border:none;box-shadow:0 4px 16px rgba(0,119,255,.35);cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:200;opacity:0;transform:translateY(12px);transition:opacity .3s,transform .3s;pointer-events:none}
#vtn-back-top.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
#vtn-back-top:hover{background:#07182c}

/* L. FAQ item animation — see section 20 above */


.vtn-guide-card__time{font-size:.75rem;color:var(--clr-text-muted)}

/* ── Trang báo giá & đặt mua ─────────────────────────────── */
.vtn-form-page{padding:48px 0 80px}
.vtn-form-page__header{text-align:center;margin-bottom:40px}
.vtn-form-page__icon{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:50%;background:var(--clr-primary-light);color:var(--clr-primary);margin-bottom:16px}
.vtn-form-page__icon--green{background:#f0fdf4;color:#16a34a}
.vtn-form-page__title{font-size:2rem;font-weight:800;color:var(--clr-navy);margin-bottom:8px}
.vtn-form-page__desc{color:var(--clr-text-muted);font-size:1rem;max-width:540px;margin:0 auto}
.vtn-form-page__layout{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.vtn-form-page__quick-contact{margin-top:16px}
.vtn-form-page__quick-label{font-size:.82rem;color:var(--clr-text-muted);margin-bottom:8px}
/* Quote list card */
.vtn-quote-list-card{background:#fff;border:1px solid var(--clr-border);border-radius:var(--radius-lg);overflow:hidden}
.vtn-quote-list-card__head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--clr-border)}
.vtn-quote-list-card__title{font-size:1rem;font-weight:700;color:var(--clr-navy);margin:0}
.vtn-quote-list-card__note{display:flex;align-items:flex-start;gap:6px;padding:12px 20px;background:var(--clr-bg);font-size:.78rem;color:var(--clr-text-muted);border-top:1px solid var(--clr-border)}
/* Empty state */
.vtn-quote-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:48px 20px;color:var(--clr-text-muted);text-align:center}
.vtn-quote-empty svg{opacity:.35}
.vtn-quote-empty a{color:var(--clr-primary)}
/* Quote table */
.quote-table{width:100%;border-collapse:collapse;font-size:.88rem}
.quote-table th{padding:10px 16px;text-align:left;font-size:.78rem;color:var(--clr-text-muted);border-bottom:2px solid var(--clr-border);white-space:nowrap}
.quote-table td{padding:12px 16px;border-bottom:1px solid var(--clr-border);vertical-align:middle}
.quote-table .sku{color:var(--clr-text-muted);font-size:.75rem}
.quote-table .qty-input{width:56px;padding:4px 8px;border:1px solid var(--clr-border);border-radius:var(--radius-sm);text-align:center;font-size:.85rem}
.quote-table .btn-remove-quote{background:none;border:none;color:var(--clr-text-muted);cursor:pointer;font-size:1rem;padding:4px 8px;border-radius:var(--radius-sm);transition:color var(--transition),background var(--transition)}
.quote-table .btn-remove-quote:hover{color:var(--clr-danger);background:#fff0f0}
.empty-quote{padding:32px 20px;text-align:center;color:var(--clr-text-muted);font-size:.9rem}
/* Form card */
.vtn-form-card{background:#fff;border:1px solid var(--clr-border);border-radius:var(--radius-lg);padding:32px}
.vtn-form-card__title{font-size:1.1rem;font-weight:700;color:var(--clr-navy);margin:0 0 24px}
.vtn-form-card__divider{display:flex;align-items:center;gap:12px;margin:20px 0;color:var(--clr-text-muted);font-size:.82rem}
.vtn-form-card__divider::before,.vtn-form-card__divider::after{content:'';flex:1;height:1px;background:var(--clr-border)}
/* Form elements */
.vtn-form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.vtn-form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.vtn-form-label{font-size:.85rem;font-weight:600;color:var(--clr-text)}
.vtn-form-label .req{color:var(--clr-danger)}
.vtn-form-input{padding:10px 14px;border:1.5px solid var(--clr-border);border-radius:var(--radius);font-size:.9rem;color:var(--clr-text);background:#fff;transition:border-color var(--transition),box-shadow var(--transition);outline:none;width:100%;box-sizing:border-box}
.vtn-form-input:focus{border-color:var(--clr-primary);box-shadow:0 0 0 3px rgba(0,119,255,.1)}
.vtn-form-textarea{min-height:100px;resize:vertical;line-height:1.6}
select.vtn-form-input{cursor:pointer}
/* Radio loại yêu cầu */
.vtn-radio-group{display:flex;flex-direction:column;gap:8px}
.vtn-radio-label{cursor:pointer}
.vtn-radio-label input{position:absolute;opacity:0;pointer-events:none}
.vtn-radio-box{display:flex;align-items:center;gap:10px;padding:12px 16px;border:1.5px solid var(--clr-border);border-radius:var(--radius);font-size:.9rem;font-weight:500;color:var(--clr-text);transition:all var(--transition)}
.vtn-radio-label input:checked + .vtn-radio-box{border-color:var(--clr-primary);background:var(--clr-primary-light);color:var(--clr-primary)}
.vtn-radio-box:hover{border-color:var(--clr-primary)}
/* Success & error states */
.vtn-form-success{background:#f0fdf4;border:1.5px solid #22c55e;border-radius:var(--radius-lg);padding:40px 32px;text-align:center;color:#166534;margin:0 auto;max-width:540px}
.vtn-form-success--order{background:#f0fdf4}
.vtn-form-success svg{color:#22c55e;margin-bottom:12px}
.vtn-form-success h3{font-size:1.3rem;font-weight:700;margin:0 0 8px}
.vtn-form-success p{margin-bottom:20px}
/* Responsive */
@media(max-width:960px){
  .vtn-form-page__layout{grid-template-columns:1fr}
  .vtn-form-row{grid-template-columns:1fr}
}
@media(max-width:600px){
  .vtn-form-card{padding:20px 16px}
  .vtn-form-page__title{font-size:1.5rem}
}

/* ==========================================================================
   BÁO GIÁ SỈ PAGE
   ========================================================================== */

/* Hero */
.vtn-baogia-hero{background:linear-gradient(135deg,#07182c 0%,#0c3564 55%,#0476c9 100%);padding:56px 0 48px;position:relative;overflow:hidden}
.vtn-baogia-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(0,212,200,.15) 0%,transparent 45%);pointer-events:none}
.vtn-baogia-hero__inner{display:grid;grid-template-columns:1fr 280px;gap:40px;align-items:center;position:relative;z-index:1}
.vtn-baogia-hero__title{font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:800;color:#fff;line-height:1.15;margin:12px 0 14px;letter-spacing:-.02em}
.vtn-baogia-hero__sub{font-size:.95rem;color:rgba(255,255,255,.75);line-height:1.75;max-width:520px;margin-bottom:20px}
.vtn-baogia-hero__badges{display:flex;flex-wrap:wrap;gap:8px}
.vtn-baogia-hero__badges span{display:inline-flex;align-items:center;gap:5px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:5px 12px;font-size:.78rem;font-weight:600;color:#fff}
.vtn-baogia-hero__stats{display:flex;flex-direction:column;gap:12px}
.vtn-baogia-stat{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.15);border-left:3px solid #00d4c8;border-radius:14px;padding:14px 18px}
.vtn-baogia-stat b{display:block;font-size:1.5rem;font-weight:800;color:#fff;line-height:1}
.vtn-baogia-stat span{font-size:.73rem;color:rgba(255,255,255,.65);margin-top:3px;display:block}

/* Steps */
.vtn-baogia-steps{background:#f8faff;border-bottom:1px solid rgba(0,87,183,.1);padding:18px 0}
.vtn-baogia-steps__list{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}
.vtn-baogia-step{display:flex;align-items:center;gap:10px;padding:8px 12px}
.vtn-baogia-step__num{width:28px;height:28px;border-radius:50%;background:#0057b7;color:#fff;font-size:.72rem;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.vtn-baogia-step__body b{display:block;font-size:.85rem;font-weight:700;color:#07182c}
.vtn-baogia-step__body span{display:block;font-size:.75rem;color:#607487}
.vtn-baogia-step__arrow{color:#b0bec8;font-size:1.1rem;flex-shrink:0}

/* Main layout */
.vtn-baogia-main{padding:48px 0 64px;background:#f4f7fb}
.vtn-baogia-layout{display:grid;grid-template-columns:1fr 340px;gap:28px;align-items:start}

/* Form card */
.vtn-baogia-form-card{background:#fff;border-radius:24px;box-shadow:0 4px 32px rgba(7,24,44,.07);overflow:hidden}
.vtn-baogia-form-card__head{background:linear-gradient(135deg,#07182c 0%,#0c3564 100%);padding:24px 28px}
.vtn-baogia-form-card__head h2{font-size:1.3rem;font-weight:800;color:#fff;margin:0 0 4px}
.vtn-baogia-form-card__head p{font-size:.85rem;color:rgba(255,255,255,.7);margin:0}
.vtn-baogia-form-card__head strong{color:#00d4c8}
.vtn-baogia-form-card form{padding:24px 28px}

/* Sections */
.vtn-bq-section{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid #eef1f5}
.vtn-bq-section:last-of-type{border-bottom:none;margin-bottom:0}
.vtn-bq-section__label{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#8ba0b3;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between}

/* Customer type chips */
.vtn-bq-customer-types{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.vtn-bq-ctype{cursor:pointer}
.vtn-bq-ctype input{position:absolute;opacity:0;pointer-events:none}
.vtn-bq-ctype__box{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 8px;border:1.5px solid #dde5ee;border-radius:12px;transition:border-color .2s,background .2s;text-align:center}
.vtn-bq-ctype__icon{font-size:1.3rem}
.vtn-bq-ctype__label{font-size:.72rem;font-weight:600;color:#607487}
.vtn-bq-ctype input:checked + .vtn-bq-ctype__box{border-color:#0057b7;background:#eef5ff}
.vtn-bq-ctype input:checked + .vtn-bq-ctype__box .vtn-bq-ctype__label{color:#0057b7}
.vtn-bq-ctype__box:hover{border-color:#0077ff;background:#f4f9ff}

/* Request type pills */
.vtn-bq-req-types{display:flex;gap:8px;flex-wrap:wrap}
.vtn-bq-rtype{cursor:pointer}
.vtn-bq-rtype input{position:absolute;opacity:0;pointer-events:none}
.vtn-bq-rtype__box{display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border:1.5px solid #dde5ee;border-radius:10px;font-size:.85rem;font-weight:600;color:#4b6278;transition:border-color .2s,background .2s,color .2s}
.vtn-bq-rtype input:checked + .vtn-bq-rtype__box{border-color:#0057b7;background:#eef5ff;color:#0057b7}
.vtn-bq-rtype__box:hover{border-color:#0077ff}

/* Fields */
.vtn-bq-grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.vtn-bq-field{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
.vtn-bq-field:last-child{margin-bottom:0}
.vtn-bq-field label{font-size:.78rem;font-weight:600;color:#4b6278}
.vtn-bq-field label span{color:#e03131}
.vtn-bq-optional{color:#a0b0c0;font-weight:400;font-style:italic}
.vtn-bq-field input,.vtn-bq-field select,.vtn-bq-field textarea{width:100%;padding:11px 14px;border:1.5px solid #dde5ee;border-radius:11px;font-size:.9rem;color:#07182c;background:#fff;box-sizing:border-box;transition:border-color .2s,box-shadow .2s;outline:none;font-family:inherit}
.vtn-bq-field input:focus,.vtn-bq-field select:focus,.vtn-bq-field textarea:focus{border-color:#0057b7;box-shadow:0 0 0 3px rgba(0,87,183,.1)}
.vtn-bq-field textarea{resize:vertical;min-height:110px;line-height:1.65}
.vtn-bq-field select{cursor:pointer}

/* Quote list */
.vtn-bq-list-empty{font-size:.85rem;color:#8ba0b3;padding:8px 0}
.vtn-bq-list-empty a{color:#0057b7;text-decoration:none}
.vtn-bq-clear-list{margin-left:auto}

/* Submit */
.vtn-bq-submit{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:16px;background:linear-gradient(135deg,#0057b7 0%,#0099e6 100%);color:#fff;border:none;border-radius:14px;font-size:1.05rem;font-weight:700;cursor:pointer;transition:opacity .2s,transform .2s,box-shadow .2s;box-shadow:0 8px 24px rgba(0,87,183,.3);letter-spacing:.01em;margin-top:8px}
.vtn-bq-submit:hover{opacity:.92;transform:translateY(-2px);box-shadow:0 14px 32px rgba(0,87,183,.38)}
.vtn-bq-submit-note{font-size:.76rem;color:#8ba0b3;text-align:center;margin:10px 0 0}

/* Sidebar */
.vtn-baogia-sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:100px}

/* Contact card */
.vtn-baogia-contact-card{background:#fff;border-radius:20px;padding:22px;box-shadow:0 4px 24px rgba(7,24,44,.07)}
.vtn-baogia-contact-card__head{display:flex;align-items:center;gap:7px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:#0057b7;margin-bottom:14px}
.vtn-baogia-contact-card__dot{width:8px;height:8px;border-radius:50%;background:#0fba7c;animation:pulse 2s ease infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.3)}}
.vtn-baogia-contact-card__label{font-size:.78rem;color:#607487;margin-bottom:8px}
.vtn-baogia-contact-card__phone{display:flex;align-items:center;gap:8px;font-size:1.4rem;font-weight:800;color:#07182c;text-decoration:none;margin-bottom:12px}
.vtn-baogia-contact-card__phone:hover{color:#0057b7}
.vtn-baogia-contact-card__or{text-align:center;font-size:.75rem;color:#a0b0c0;margin:10px 0}
.vtn-baogia-contact-card__hours{display:flex;align-items:center;gap:5px;font-size:.75rem;color:#8ba0b3;margin-top:12px;justify-content:center}

/* Why us */
.vtn-baogia-why{background:#fff;border-radius:20px;padding:20px 22px;box-shadow:0 4px 24px rgba(7,24,44,.07)}
.vtn-baogia-why__title{font-size:.88rem;font-weight:800;color:#07182c;margin:0 0 14px;text-transform:uppercase;letter-spacing:.04em}
.vtn-baogia-why__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.vtn-baogia-why__list li{display:flex;align-items:flex-start;gap:10px;font-size:.82rem}
.vtn-baogia-why__icon{width:20px;height:20px;border-radius:50%;background:#d1fae5;color:#065f46;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:800;flex-shrink:0;margin-top:1px}
.vtn-baogia-why__list b{font-weight:700;color:#07182c;display:block;margin-bottom:2px}
.vtn-baogia-why__list small{color:#607487;line-height:1.4}

/* Trust badges */
.vtn-baogia-trust{background:linear-gradient(135deg,#07182c 0%,#0c3564 100%);border-radius:20px;padding:18px 22px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.vtn-baogia-trust__item{text-align:center}
.vtn-baogia-trust__item b{display:block;font-size:1.2rem;font-weight:800;color:#fff}
.vtn-baogia-trust__item span{font-size:.68rem;color:rgba(255,255,255,.6)}

/* Success */
.vtn-baogia-success{background:#fff;border-radius:24px;padding:60px 40px;text-align:center;max-width:520px;margin:0 auto;box-shadow:0 4px 32px rgba(7,24,44,.08)}
.vtn-baogia-success__icon{margin:0 auto 20px}
.vtn-baogia-success h2{font-size:1.5rem;font-weight:800;color:#07182c;margin:0 0 12px}
.vtn-baogia-success p{font-size:.95rem;color:#607487;line-height:1.7;margin:0 0 28px}
.vtn-baogia-success__actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Responsive */
@media(max-width:1100px){.vtn-baogia-hero__inner{grid-template-columns:1fr}.vtn-baogia-hero__stats{flex-direction:row;gap:12px}.vtn-baogia-stat{flex:1}}
@media(max-width:960px){.vtn-baogia-layout{grid-template-columns:1fr}.vtn-baogia-sidebar{position:static}.vtn-baogia-trust{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.vtn-bq-customer-types{grid-template-columns:repeat(2,1fr)}.vtn-bq-grid2{grid-template-columns:1fr}.vtn-bq-req-types{flex-direction:column}.vtn-baogia-form-card form{padding:18px 16px}.vtn-baogia-form-card__head{padding:18px 16px}}

/* ==========================================================================
   QUICK ORDER MODAL
   ========================================================================== */
@keyframes spin{to{transform:rotate(360deg)}}
.vtn-modal{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;padding:12px}
.vtn-modal[hidden]{display:none}
.vtn-modal__overlay{position:absolute;inset:0;background:rgba(5,18,36,.75);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);cursor:pointer}
.vtn-modal__box{position:relative;z-index:1;background:#fff;border-radius:28px;width:100%;max-width:460px;max-height:92vh;overflow-y:auto;box-shadow:0 40px 100px rgba(5,18,36,.4)}

/* Header */
.vtn-qo-header{background:linear-gradient(135deg,#07182c 0%,#0c3564 60%,#0476c9 100%);border-radius:22px 22px 0 0;padding:20px 20px 18px;display:grid;grid-template-columns:40px 1fr auto auto;align-items:center;gap:12px}
.vtn-qo-header__icon{width:40px;height:40px;background:rgba(255,255,255,.12);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#00d4c8;flex-shrink:0}
.vtn-qo-header__text{min-width:0}
.vtn-qo-header__label{display:block;font-size:.72rem;font-weight:700;color:rgba(255,255,255,.55);text-transform:uppercase;letter-spacing:.08em;margin-bottom:2px}
.vtn-qo-header__pname{display:block;font-size:.92rem;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vtn-qo-header__price{font-size:1.1rem;font-weight:800;color:#00d4c8;white-space:nowrap}
.vtn-qo-close{width:32px;height:32px;border-radius:50%;border:none;background:rgba(255,255,255,.12);cursor:pointer;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);flex-shrink:0;transition:background .2s}
.vtn-qo-close:hover{background:rgba(255,255,255,.22);color:#fff}

/* Form body */
.vtn-qo-form{padding:22px 22px 18px;display:flex;flex-direction:column;gap:14px}
.vtn-qo-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.vtn-qo-field{display:flex;flex-direction:column;gap:5px}
.vtn-qo-label{font-size:.78rem;font-weight:600;color:#4b6278;letter-spacing:.01em}
.vtn-qo-label span{color:#e03131}
.vtn-qo-input{width:100%;padding:11px 14px;border:1.5px solid #dde5ee;border-radius:12px;font-size:.9rem;color:#07182c;background:#fff;box-sizing:border-box;transition:border-color .2s,box-shadow .2s;outline:none;font-family:inherit}
.vtn-qo-input:focus{border-color:#0077ff;box-shadow:0 0 0 3px rgba(0,119,255,.1)}
.vtn-qo-textarea{resize:vertical;min-height:68px;line-height:1.6}

/* Qty stepper */
.vtn-qo-field--qty{flex-direction:row;align-items:center;justify-content:space-between;background:#f7f9fc;border-radius:14px;padding:10px 16px}
.vtn-qo-field--qty .vtn-qo-label{margin:0;font-size:.85rem;color:#07182c;font-weight:600}
.vtn-qo-stepper{display:flex;align-items:center;gap:0;border:1.5px solid #dde5ee;border-radius:10px;overflow:hidden;background:#fff}
.vtn-qo-stepper__btn{width:38px;height:38px;border:none;background:transparent;font-size:1.2rem;font-weight:700;color:#0077ff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .18s}
.vtn-qo-stepper__btn:hover{background:#e8f2ff}
.vtn-qo-stepper__input{width:52px;border:none;border-left:1.5px solid #dde5ee;border-right:1.5px solid #dde5ee;text-align:center;font-size:.95rem;font-weight:700;color:#07182c;outline:none;padding:0;height:38px;-moz-appearance:textfield}
.vtn-qo-stepper__input::-webkit-inner-spin-button,.vtn-qo-stepper__input::-webkit-outer-spin-button{-webkit-appearance:none}

/* Submit */
.vtn-qo-submit{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:14px;background:linear-gradient(135deg,#0057b7 0%,#0099e6 100%);color:#fff;border:none;border-radius:14px;font-size:1rem;font-weight:700;cursor:pointer;transition:opacity .2s,transform .2s,box-shadow .2s;box-shadow:0 6px 20px rgba(0,87,183,.3);letter-spacing:.01em}
.vtn-qo-submit:hover{opacity:.92;transform:translateY(-1px);box-shadow:0 10px 28px rgba(0,87,183,.38)}
.vtn-qo-submit:disabled{opacity:.6;cursor:not-allowed;transform:none}
.vtn-qo-notice{display:flex;align-items:center;justify-content:center;gap:5px;font-size:.75rem;color:#8ba0b3;margin:0;text-align:center}

/* Success state */
.vtn-qo-success{padding:40px 24px 30px;text-align:center}
.vtn-qo-success__ring{margin:0 auto 20px;width:64px;height:64px}
.vtn-qo-success h3{font-size:1.25rem;font-weight:800;color:#07182c;margin:0 0 10px}
.vtn-qo-success p{font-size:.9rem;color:#607487;line-height:1.6;margin:0 0 24px}
.vtn-qo-success p strong{color:#07182c}
.vtn-qo-close-success{display:inline-flex;align-items:center;justify-content:center;padding:12px 32px;background:#f0f7ff;border:1.5px solid #d0e4ff;border-radius:12px;color:#0057b7;font-weight:700;font-size:.9rem;cursor:pointer;transition:background .2s}
.vtn-qo-close-success:hover{background:#ddeeff}

body.vtn-modal-open{overflow:hidden}
@media (max-width:480px){
  .vtn-modal{padding:0;align-items:flex-end}
  .vtn-modal__box{border-radius:24px 24px 0 0;max-height:96vh}
  .vtn-qo-header{border-radius:24px 24px 0 0}
  .vtn-qo-grid{grid-template-columns:1fr}
}

/* ==========================================================================
   INFO / POLICY / ABOUT PAGES — shared design system
   ========================================================================== */

/* ── Hero band ─────────────────────────────────────────── */
.vtn-info-hero{background:linear-gradient(135deg,#07182c 0%,#0c3564 55%,#0476c9 100%);padding:52px 0;color:#fff;position:relative;overflow:hidden}
.vtn-info-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 80% 10%,rgba(0,212,200,.12) 0%,transparent 50%);pointer-events:none}
.vtn-info-hero__inner{position:relative;z-index:1;display:flex;align-items:flex-start;gap:22px}
.vtn-info-hero__icon{width:54px;height:54px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.2);border-radius:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff}
.vtn-info-hero__eyebrow{font-size:.7rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:#60a5fa;margin-bottom:8px}
.vtn-info-hero__title{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;color:#fff;margin-bottom:10px;line-height:1.2}
.vtn-info-hero__desc{color:rgba(255,255,255,.72);font-size:.92rem;line-height:1.7;max-width:580px}
.vtn-info-hero__meta{display:flex;gap:18px;margin-top:18px;flex-wrap:wrap}
.vtn-info-hero__meta span{font-size:.78rem;color:rgba(255,255,255,.6);display:flex;align-items:center;gap:5px}

/* ── Page layout ───────────────────────────────────────── */
.vtn-info-page{padding:48px 0 72px;background:#f4f7fb}
.vtn-info-layout{display:grid;grid-template-columns:1fr 272px;gap:36px;align-items:start}

/* ── Content area ──────────────────────────────────────── */
.vtn-info-section{margin-bottom:36px}
.vtn-info-section:last-child{margin-bottom:0}
.vtn-info-section__heading{font-size:1.05rem;font-weight:700;color:#07182c;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid #e8f2ff;display:flex;align-items:center;gap:8px}
.vtn-info-section__heading svg{color:#0077ff;flex-shrink:0}
.vtn-info-section p{font-size:.88rem;color:#3d5166;line-height:1.78;margin-bottom:10px}
.vtn-info-section p:last-child{margin-bottom:0}
.vtn-info-section p a{color:#0077ff;font-weight:600}
.vtn-info-section p a:hover{text-decoration:underline}

.vtn-info-card{background:#fff;border:1.5px solid rgba(16,34,53,.07);border-radius:14px;padding:20px 22px;margin-bottom:12px}
.vtn-info-card--blue{border-left:4px solid #0077ff;background:#f0f7ff}
.vtn-info-card--green{border-left:4px solid #16a34a;background:#f0fdf4}
.vtn-info-card--amber{border-left:4px solid #d97706;background:#fffbeb}
.vtn-info-card--red{border-left:4px solid #dc2626;background:#fff5f5}
.vtn-info-card p{margin:0;font-size:.87rem;line-height:1.7;color:#3d5166}
.vtn-info-card strong{color:#07182c}

.vtn-info-list{list-style:none;display:flex;flex-direction:column;gap:8px;margin:0;padding:0}
.vtn-info-list li{display:flex;gap:10px;align-items:flex-start;font-size:.875rem;line-height:1.65;color:#3d5166}
.vtn-info-list li::before{content:'';flex-shrink:0;width:6px;height:6px;border-radius:50%;background:#0077ff;margin-top:7px}
.vtn-info-list--check li::before{content:'✓';width:auto;height:auto;background:none;color:#16a34a;font-weight:700;font-size:.9rem;margin-top:1px}
.vtn-info-list--num{counter-reset:info-list-n}
.vtn-info-list--num li::before{content:counter(info-list-n);counter-increment:info-list-n;width:22px;height:22px;min-width:22px;background:#0077ff;color:#fff;border-radius:50%;font-size:.7rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}

.vtn-info-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:12px}
.vtn-info-icard{background:#fff;border:1.5px solid rgba(16,34,53,.07);border-radius:14px;padding:16px 18px;display:flex;gap:12px;align-items:flex-start;transition:box-shadow .2s,border-color .2s}
.vtn-info-icard:hover{border-color:rgba(0,119,255,.25);box-shadow:0 4px 16px rgba(0,119,255,.08)}
.vtn-info-icard__icon{width:38px;height:38px;min-width:38px;border-radius:10px;background:#e8f2ff;color:#0077ff;display:flex;align-items:center;justify-content:center}
.vtn-info-icard__icon--green{background:#d1fae5;color:#059669}
.vtn-info-icard__icon--amber{background:#fef3c7;color:#d97706}
.vtn-info-icard__icon--purple{background:#ede9fe;color:#7c3aed}
.vtn-info-icard__title{font-size:.85rem;font-weight:700;color:#07182c;margin-bottom:3px}
.vtn-info-icard__desc{font-size:.78rem;color:#607487;line-height:1.5}

.vtn-info-table{width:100%;border-collapse:collapse;font-size:.84rem;margin-bottom:12px;border-radius:12px;overflow:hidden}
.vtn-info-table thead th{background:#07182c;color:#fff;padding:11px 14px;text-align:left;font-weight:600;font-size:.8rem}
.vtn-info-table td{padding:10px 14px;border-bottom:1px solid rgba(16,34,53,.07);color:#3d5166;line-height:1.5}
.vtn-info-table tr:nth-child(even) td{background:rgba(0,119,255,.025)}
.vtn-info-table tr:hover td{background:rgba(0,119,255,.05)}

.vtn-info-steps{counter-reset:info-step-n;display:flex;flex-direction:column;gap:0;padding-left:44px;position:relative}
.vtn-info-steps::before{content:'';position:absolute;left:15px;top:20px;bottom:28px;width:2px;background:linear-gradient(180deg,#0077ff,rgba(0,119,255,.1))}
.vtn-info-step{position:relative;padding:0 0 26px}
.vtn-info-step::before{content:counter(info-step-n);counter-increment:info-step-n;position:absolute;left:-44px;top:0;width:26px;height:26px;border-radius:50%;background:#0077ff;color:#fff;font-size:.72rem;font-weight:700;display:flex;align-items:center;justify-content:center}
.vtn-info-step__title{font-size:.9rem;font-weight:700;color:#07182c;margin-bottom:5px}
.vtn-info-step__desc{font-size:.84rem;color:#607487;line-height:1.6}

/* ── Sidebar ───────────────────────────────────────────── */
.vtn-info-sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:14px}
.vtn-policy-nav{background:#fff;border:1.5px solid rgba(16,34,53,.08);border-radius:16px;overflow:hidden}
.vtn-policy-nav__head{background:#07182c;color:#fff;padding:12px 18px;font-size:.78rem;font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.vtn-policy-nav ul{list-style:none;padding:6px 0;margin:0}
.vtn-policy-nav ul li+li{border-top:1px solid rgba(16,34,53,.05)}
.vtn-policy-nav ul li a{display:flex;align-items:center;gap:8px;padding:10px 18px;font-size:.83rem;color:#3d5166;transition:background .2s,color .2s,padding-left .2s}
.vtn-policy-nav ul li a:hover,.vtn-policy-nav ul li.is-active a{background:#e8f2ff;color:#0077ff;padding-left:24px}

.vtn-info-cta-box{background:linear-gradient(135deg,#07182c,#0057b7);border-radius:16px;padding:20px;text-align:center;color:#fff}
.vtn-info-cta-box h4{font-size:.9rem;font-weight:700;margin-bottom:6px}
.vtn-info-cta-box p{font-size:.78rem;color:rgba(255,255,255,.78);margin-bottom:14px;line-height:1.5}
.vtn-info-cta-box .vtn-btn{width:100%;justify-content:center;background:#fff;color:#0057b7;font-weight:700}
.vtn-info-cta-box .vtn-btn:hover{background:#e8f2ff}

/* ── About page extras ─────────────────────────────────── */
.vtn-about-hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.15);border-radius:14px;overflow:hidden;margin-top:32px}
.vtn-about-hero-stat{padding:18px 12px;text-align:center}
.vtn-about-hero-stat b{display:block;font-size:1.6rem;font-weight:800;color:#fff;line-height:1}
.vtn-about-hero-stat span{font-size:.72rem;color:rgba(255,255,255,.62);margin-top:4px;display:block;line-height:1.3}

.vtn-about-values{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.vtn-about-value{background:#fff;border:1.5px solid rgba(16,34,53,.07);border-radius:16px;padding:22px;text-align:center;transition:box-shadow .2s,transform .2s}
.vtn-about-value:hover{box-shadow:0 6px 24px rgba(0,119,255,.1);transform:translateY(-3px)}
.vtn-about-value__icon{width:50px;height:50px;border-radius:14px;margin:0 auto 12px;display:flex;align-items:center;justify-content:center}
.vtn-about-value__icon--blue{background:#dbeafe;color:#2563eb}
.vtn-about-value__icon--green{background:#d1fae5;color:#059669}
.vtn-about-value__icon--amber{background:#fef3c7;color:#d97706}
.vtn-about-value__icon--purple{background:#ede9fe;color:#7c3aed}
.vtn-about-value h3{font-size:.88rem;font-weight:700;color:#07182c;margin-bottom:7px}
.vtn-about-value p{font-size:.8rem;color:#607487;line-height:1.6;margin:0}

.vtn-about-cats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.vtn-about-cat{position:relative;min-height:104px;background:linear-gradient(135deg,#fff 0%,#f8fbff 100%);border:1.5px solid rgba(16,34,53,.08);border-radius:16px;padding:18px 56px 18px 18px;display:grid;grid-template-columns:52px minmax(0,1fr);align-items:center;gap:14px;transition:border-color .2s,box-shadow .2s,transform .2s,background .2s;text-decoration:none!important;color:inherit!important;overflow:hidden}
.vtn-about-cat::before{content:'';position:absolute;inset:auto -42px -54px auto;width:112px;height:112px;border-radius:999px;background:radial-gradient(circle,rgba(0,188,212,.14),rgba(0,119,255,0));pointer-events:none}
.vtn-about-cat::after{content:'→';position:absolute;right:18px;top:50%;transform:translateY(-50%);width:30px;height:30px;border-radius:999px;background:#e8f2ff;color:#0077ff;display:flex;align-items:center;justify-content:center;font-size:.92rem;font-weight:800;transition:background .2s,color .2s,transform .2s}
.vtn-about-cat:hover{border-color:rgba(0,119,255,.34);background:#fff;box-shadow:0 12px 30px rgba(0,43,92,.1);transform:translateY(-2px)}
.vtn-about-cat:hover::after{background:#0077ff;color:#fff;transform:translate(3px,-50%)}
.vtn-about-cat:focus-visible{outline:3px solid rgba(0,119,255,.22);outline-offset:3px}
.vtn-about-cat__icon{width:52px;height:52px;min-width:52px;border-radius:14px;background:linear-gradient(135deg,#e8f2ff,#dff8ff);display:flex;align-items:center;justify-content:center;font-size:1.25rem;box-shadow:inset 0 0 0 1px rgba(0,119,255,.08)}
.vtn-about-cat__body{min-width:0}
.vtn-about-cat__name{font-size:.96rem;font-weight:800;color:#07182c;margin-bottom:5px;line-height:1.35}
.vtn-about-cat__desc{font-size:.8rem;color:#5d7186;line-height:1.5}

/* ── FAQ page extras ───────────────────────────────────── */
.vtn-faq-page-wrap{padding:48px 0 72px;background:#f4f7fb}
.vtn-faq-page-layout{display:grid;grid-template-columns:1fr 272px;gap:36px;align-items:start}
.vtn-faq-nav-chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.vtn-faq-chip{padding:7px 16px;border-radius:999px;border:1.5px solid rgba(16,34,53,.1);font-size:.8rem;font-weight:600;color:#3d5166;background:#fff;text-decoration:none;transition:all .2s}
.vtn-faq-chip:hover,.vtn-faq-chip.active{background:#0077ff;color:#fff;border-color:#0077ff}
.vtn-faq-page-section{margin-bottom:44px}
.vtn-faq-page-section__title{font-size:1rem;font-weight:700;color:#07182c;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.vtn-faq-page-section__title::before{content:'';display:inline-block;width:4px;height:1em;border-radius:4px;background:#0077ff;flex-shrink:0}

/* ── Responsive ────────────────────────────────────────── */
@media(max-width:900px){
  .vtn-info-layout,.vtn-faq-page-layout{grid-template-columns:1fr}
  .vtn-info-sidebar{position:static}
  .vtn-about-values{grid-template-columns:repeat(2,1fr)}
  .vtn-about-hero-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .vtn-info-hero{padding:36px 0}
  .vtn-info-grid-2{grid-template-columns:1fr}
  .vtn-about-cats{grid-template-columns:1fr}
  .vtn-about-cat{min-height:96px;padding:16px 50px 16px 16px;grid-template-columns:48px minmax(0,1fr)}
  .vtn-about-cat__icon{width:48px;height:48px;min-width:48px}
  .vtn-about-values{grid-template-columns:1fr}
}

/* ==========================================================================
   LOAD MORE PRODUCTS
   ========================================================================== */
.vtn-load-more-wrap{text-align:center;padding:36px 0 12px;display:flex;flex-direction:column;align-items:center;gap:14px}
.vtn-load-more-progress{font-size:.82rem;color:var(--clr-text-muted)}
.vtn-load-more-progress strong{color:var(--clr-navy)}

.vtn-load-more-bar{width:240px;max-width:90%;height:4px;background:rgba(16,34,53,.08);border-radius:4px;overflow:hidden}
.vtn-load-more-bar__fill{height:100%;background:linear-gradient(90deg,#0077ff,#38bdf8);border-radius:4px;transition:width .4s ease}

.vtn-load-more-btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;background:#fff;border:2px solid var(--clr-primary);border-radius:var(--radius-full);color:var(--clr-primary);font-size:.9rem;font-weight:700;cursor:pointer;transition:background .25s,color .25s,transform .2s,box-shadow .25s}
.vtn-load-more-btn:hover{background:var(--clr-primary);color:#fff;transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,119,255,.25)}
.vtn-load-more-btn__spin{display:none;animation:vtn-spin .7s linear infinite}
@keyframes vtn-spin{to{transform:rotate(360deg)}}
.vtn-load-more-btn.is-loading{opacity:.75;pointer-events:none}
.vtn-load-more-btn.is-loading .vtn-load-more-btn__icon{display:none}
.vtn-load-more-btn.is-loading .vtn-load-more-btn__spin{display:block}

/* ==========================================================================
   SKU LOOKUP MODAL
   ========================================================================== */
.vtn-sku-modal{max-width:500px;border-radius:20px;overflow:hidden;padding:0}
.vtn-sku-modal__header{background:linear-gradient(135deg,#07182c 0%,#0c3564 100%);padding:20px 22px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.vtn-sku-modal__eyebrow{font-size:.65rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:#60a5fa;display:block;margin-bottom:3px}
.vtn-sku-modal__title{font-size:1.1rem;font-weight:800;color:#fff;margin:0}
.vtn-sku-modal__close{width:34px;height:34px;min-width:34px;border-radius:8px;background:rgba(255,255,255,.1);border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}
.vtn-sku-modal__close:hover{background:rgba(255,255,255,.22)}
.vtn-sku-modal__body{padding:20px 22px}
.vtn-sku-modal__hint{font-size:.8rem;color:#607487;margin:0 0 14px;line-height:1.5}
.vtn-sku-modal__hint code{background:#f0f4f8;border-radius:4px;padding:1px 5px;font-family:monospace;font-size:.75rem;color:#0057b7}

.vtn-sku-search{display:flex;gap:8px;margin-bottom:14px}
.vtn-sku-input{flex:1;padding:10px 14px;border:1.5px solid rgba(16,34,53,.12);border-radius:12px;font-size:.9rem;outline:none;color:#07182c;transition:border-color .2s,box-shadow .2s;background:#fff}
.vtn-sku-input:focus{border-color:#0077ff;box-shadow:0 0 0 3px rgba(0,119,255,.1)}
.vtn-sku-input::placeholder{color:#b0bec8}
.vtn-sku-search-btn{flex-shrink:0;padding:10px 16px;border-radius:12px;background:#0077ff;color:#fff;border:none;cursor:pointer;font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:6px;transition:background .2s}
.vtn-sku-search-btn:hover{background:#005fcc}

/* Loading dots */
.vtn-sku-loading{display:flex;justify-content:center;gap:7px;padding:28px 0}
.vtn-sku-loading span{width:9px;height:9px;border-radius:50%;background:#0077ff;animation:vtn-sku-bounce .75s ease-in-out infinite}
.vtn-sku-loading span:nth-child(2){animation-delay:.12s}
.vtn-sku-loading span:nth-child(3){animation-delay:.24s}
@keyframes vtn-sku-bounce{0%,80%,100%{transform:scale(.7);opacity:.4}40%{transform:scale(1.15);opacity:1}}

/* Messages */
.vtn-sku-msg{padding:13px 16px;border-radius:10px;font-size:.86rem;line-height:1.6;margin:0}
.vtn-sku-msg--warn{background:#fffbeb;color:#92400e;border:1px solid #fde68a}
.vtn-sku-msg--error{background:#fff5f5;color:#991b1b;border:1px solid #fecaca}

/* Result card */
.vtn-sku-card{display:flex;gap:14px;background:#f4f8ff;border:1.5px solid rgba(0,119,255,.14);border-radius:14px;padding:14px;animation:vtn-fade-in .2s ease}
@keyframes vtn-fade-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.vtn-sku-result__img{width:80px;height:80px;min-width:80px;border-radius:10px;object-fit:cover;border:1px solid rgba(16,34,53,.08)}
.vtn-sku-result__img--ph{width:80px;height:80px;min-width:80px;border-radius:10px;background:#e8f2ff;display:flex;align-items:center;justify-content:center}
.vtn-sku-card__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.vtn-sku-card__meta{display:flex;gap:7px;align-items:center;flex-wrap:wrap}
.vtn-sku-card__code{font-family:monospace;font-size:.72rem;font-weight:700;background:#07182c;color:#fff;padding:2px 8px;border-radius:5px;letter-spacing:.5px}
.vtn-sku-card__cat{font-size:.7rem;background:#e8f2ff;color:#0057b7;padding:2px 8px;border-radius:5px;font-weight:600}
.vtn-sku-card__name{font-size:.9rem;font-weight:700;color:#07182c;margin:0;line-height:1.3}
.vtn-sku-card__brand{font-size:.75rem;color:#607487;margin:0}
.vtn-sku-card__footer{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:6px}
.vtn-sku-card__price{font-size:.95rem;font-weight:800;color:#0077ff}
.vtn-sku-card__unit{font-size:.72rem;font-weight:400;color:#607487}