/*
Theme Name: Advanced Material
Theme URI: https://advanced-material.org
Author: Advanced Material
Author URI: https://advanced-material.org
Description: Professional B2B theme for Advanced Material — technical materials consulting for electronics, automotive, and telecom manufacturing. Supports English, Vietnamese, and Chinese via WPML/Polylang.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: Proprietary
Text Domain: advanced-material
Tags: business, custom-menu, featured-images, threaded-comments, translation-ready, rtl-language-support, full-width-template, custom-logo, blog, e-commerce
*/

/* ============================================================
   DESIGN TOKENS — Advanced Material Brand System
   ============================================================ */
:root {
  /* Brand Colors */
  --dk:  #163e2b;
  --dk2: #0d2419;
  --gr:  #609f74;
  --gr2: #4a8860;
  --yw:  #FFFC99;
  --cr:  #fffee3;
  --wh:  #ffffff;

  /* Text */
  --txt:  #0f1f15;
  --txt2: #4a6652;
  --txt3: #8aaa94;

  /* Borders */
  --bd:  #d4e8da;
  --bd2: #b8d4c2;

  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Typography */
  --font-body:    'Inter', 'Segoe UI', -apple-system, sans-serif;
  --font-display: 'Inter', sans-serif;

  /* Radius */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(22,62,43,0.06);
  --shadow-md: 0 4px 20px rgba(22,62,43,0.08);
  --shadow-lg: 0 12px 40px rgba(22,62,43,0.12);

  /* Layout */
  --max-width: 1200px;
  --nav-height: 60px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--txt);
  background: #fff;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .15s ease;
}

ul, ol { list-style: none; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ============================================================
   TYPOGRAPHY SCALE
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--dk);
}

h1 { font-size: clamp(2rem, 4vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
h4 { font-size: 1.15rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p { margin-bottom: var(--space-md); line-height: 1.75; }
p:last-child { margin-bottom: 0; }

/* ============================================================
   WORDPRESS CORE CLASSES
   ============================================================ */
.screen-reader-text {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.alignleft  { float: left; margin: 0 var(--space-lg) var(--space-md) 0; }
.alignright { float: right; margin: 0 0 var(--space-md) var(--space-lg); }
.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.alignwide { max-width: 1400px; margin-left: auto; margin-right: auto; }
.alignfull { width: 100vw; margin-left: calc(-50vw + 50%); }

.wp-caption { max-width: 100%; }
.wp-caption-text { font-size: .8rem; color: var(--txt3); margin-top: var(--space-xs); }

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-lg);
	max-width:1200px;
}

.mw-840{
	max-width: 840px;
	margin-top: 40px;
	margin-bottom: 40px;
}

.section {
  padding: var(--space-3xl) 0;
}

.section--sm { padding: var(--space-2xl) 0; }
.section--dark { background: var(--dk); }
.section--dark2 { background: var(--dk2); }
.section--light { background: #fafaf8; }
.section--cream { background: var(--cr); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ============================================================
   EYEBROW / SECTION LABELS
   ============================================================ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  color: var(--gr);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.eyebrow::before {
  content: '';
  width: 18px;
  height: 2px;
  background: var(--gr);
  border-radius: 2px;
  flex-shrink: 0;
}

.eyebrow--light { color: var(--yw); }
.eyebrow--light::before { background: var(--yw); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 22px;
  border-radius: var(--r-sm);
  border: none;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s ease;
  letter-spacing: .2px;
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--dk);
  color: #fff;
}
.btn--primary:hover {
  background: var(--gr2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--yellow {
  background: var(--yw);
  color: var(--dk);
}
.btn--yellow:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(255,252,153,.3);
}

.btn--ghost {
  background: transparent;
  color: var(--dk);
  border: 1.5px solid var(--bd2);
}
.btn--ghost:hover {
  border-color: var(--gr);
  background: var(--cr);
}

.btn--ghost-light {
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.14);
}
.btn--ghost-light:hover { background: rgba(255,255,255,.1); }

.btn--lg { padding: 14px 28px; font-size: 14px; }
.btn--sm { padding: 7px 14px; font-size: 12px; }
.btn--full { width: 100%; justify-content: center; }

/* ============================================================
   TAGS & PILLS
   ============================================================ */
.tag {
  display: inline-block;
  background: rgba(22,62,43,.06);
  color: var(--dk);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 12px;
}

.pill {
  display: inline-block;
  background: var(--cr);
  color: var(--txt2);
  font-size: 10px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 10px;
}

.badge {
  display: inline-block;
  background: var(--cr);
  color: var(--gr2);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  transition: all .2s ease;
}

.card--hover:hover {
  border-color: var(--gr);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.card--dark {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  transition: all .2s ease;
}

.card--dark:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(96,159,116,.35);
}

/* ============================================================
   FORMS
   ============================================================ */
.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--txt);
  margin-bottom: var(--space-xs);
}

.form-control {
  width: 100%;
  padding: 10px 13px;
  border: 1.5px solid var(--bd);
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--txt);
  background: var(--cr);
  outline: none;
  transition: border-color .15s, background .15s;
}

.form-control:focus {
  border-color: var(--gr);
  background: #fff;
}

textarea.form-control {
  min-height: 80px;
  resize: vertical;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(22,62,43,.08);
  height: var(--nav-height);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark {
  width: 30px;
  height: 30px;
  background: var(--dk);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-wordmark {
  font-size: 14px;
  font-weight: 700;
  color: var(--dk);
  letter-spacing: -.2px;
}

.logo-wordmark span { color: var(--gr); font-weight: 400; }

/* Main Nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  font-size: 13px;
  color: var(--txt2);
  font-weight: 500;
  transition: color .15s;
  position: relative;
}

.main-nav a:hover,
.main-nav a.current-menu-item { color: var(--dk); }

.main-nav a.current-menu-item::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--gr);
  border-radius: 1px;
}

/* Fix: wp_nav_menu() wraps items in <ul><li> — flatten to horizontal flex */
.main-nav > ul {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav > ul > li {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* current-menu-item class is on <li>, need to style the <a> inside */
.main-nav > ul > li.current-menu-item > a,
.main-nav > ul > li.current-menu-ancestor > a {
  color: var(--dk);
}

.main-nav > ul > li.current-menu-item > a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--gr);
  border-radius: 1px;
}

/* Dropdown */
.nav-item-has-children { position: relative; }

.nav-item-has-children > .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: -16px;
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm);
  z-index: 100;
}

.nav-item-has-children:hover > .sub-menu { display: block; }

.sub-menu li a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--txt2);
  border-radius: var(--r-sm);
  transition: all .15s;
}

.sub-menu li a:hover {
  background: var(--cr);
  color: var(--dk);
}

/* Nav Right */
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Language Switcher */
.lang-switch {
  display: flex;
  gap: 2px;
  background: var(--cr);
  border-radius: 20px;
  padding: 3px;
}

.lang-btn {
  padding: 3px 10px;
  border-radius: 16px;
  border: none;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--txt2);
  transition: all .15s;
  text-decoration: none;
  display: inline-block;
}

.lang-btn:hover,
.lang-btn.active { background: var(--dk); color: #fff; }

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dk);
  border-radius: 2px;
  transition: all .3s;
}

/* Mobile open state */
@media (max-width: 768px) {
  .main-nav.is-open > ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px var(--space-lg) 60px;
  background: var(--dk2);
  position: relative;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(96,159,116,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,159,116,.07) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-glow {
  position: absolute;
  top: -120px; right: -80px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96,159,116,.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-glow-2 {
  position: absolute;
  bottom: -100px; left: -60px;
  width: 360px; height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,252,153,.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 660px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(96,159,116,.35);
  background: rgba(96,159,116,.1);
  color: var(--gr);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  padding: 5px 13px 5px 9px;
  border-radius: 20px;
  margin-bottom: var(--space-xl);
  text-transform: uppercase;
}

.hero-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gr);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); }
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -2px;
  color: #fff;
  margin-bottom: var(--space-lg);
}

.hero h1 em { font-style: normal; color: var(--yw); }
.hero h1 .hl { color: var(--gr); }

.hero-sub {
  font-size: 16px;
  color: rgba(255,255,255,.55);
  line-height: 1.75;
  max-width: 480px;
  margin-bottom: var(--space-xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: flex;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(255,255,255,.03);
  width: fit-content;
}

.hero-stat {
  padding: 16px 28px;
  border-right: 1px solid rgba(255,255,255,.08);
}

.hero-stat:last-child { border-right: none; }

.hero-stat-num {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.hero-stat-lbl {
  font-size: 11px;
  color: rgba(255,255,255,.4);
  margin-top: 2px;
}

/* ============================================================
   MARQUEE
   ============================================================ */
.marquee-strip {
  background: var(--yw);
  padding: 11px 0;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  gap: 48px;
  white-space: nowrap;
  animation: marquee-scroll 22s linear infinite;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--dk);
  flex-shrink: 0;
}

.marquee-sep {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gr2);
  flex-shrink: 0;
}

/* ============================================================
   PRODUCT SECTION
   ============================================================ */
.product-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-lg);
  align-items: start;
}

.product-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.product-item {
  padding: var(--space-md) 18px;
  border-radius: var(--r-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .2s ease;
}

.product-item:hover { background: #fff; border-color: var(--bd); }

.product-item.active {
  background: #fff;
  border-color: var(--gr);
  box-shadow: var(--shadow-md);
}

.product-item-head {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: 6px;
}

.product-item-icon {
  width: 36px; height: 36px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.product-item-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--dk);
}

.product-item-desc {
  font-size: 12px;
  color: var(--txt2);
  line-height: 1.6;
  padding-left: 44px;
}

.product-detail {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: var(--space-xl);
  position: sticky;
  top: calc(var(--nav-height) + 16px);
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.spec-item {
  background: var(--cr);
  border-radius: var(--r-sm);
  padding: 10px 12px;
}

.spec-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .5px;
  color: var(--txt3);
  text-transform: uppercase;
  margin-bottom: 3px;
}

.spec-val {
  font-size: 13px;
  font-weight: 600;
  color: var(--dk);
}

.tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-md);
}

/* ============================================================
   APPLICATION CARDS
   ============================================================ */
.app-card {
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  transition: all .22s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: #fff;
}

.app-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--dk), var(--gr));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}

.app-card:hover {
  border-color: var(--gr);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.app-card:hover::before { transform: scaleX(1); }

.app-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--txt3);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.app-icon-wrap {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: var(--cr);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--space-md);
}

.app-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--dk);
  margin-bottom: 8px;
}

.app-desc {
  font-size: 13px;
  color: var(--txt2);
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.app-pills { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: var(--space-xl); }

.app-arrow {
  position: absolute;
  bottom: var(--space-md);
  right: var(--space-md);
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid var(--bd);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--txt3);
  transition: all .2s;
}

.app-card:hover .app-arrow {
  background: var(--dk);
  border-color: var(--dk);
  color: #fff;
}

/* ============================================================
   KNOWLEDGE / ARTICLE CARDS
   ============================================================ */
.article-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-md);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all .2s ease;
  text-decoration: none;
  display: block;
}

.article-card:hover {
  background: rgba(255,255,255,.09);
  border-color: rgba(96,159,116,.4);
}

.article-cat {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--gr);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.article-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  line-height: 1.45;
  margin-bottom: 6px;
}

.article-meta {
  font-size: 11px;
  color: rgba(255,255,255,.35);
}

/* Light variant for blog */
.article-card--light {
  background: #fff;
  border-color: var(--bd);
}

.article-card--light:hover {
  border-color: var(--gr);
  box-shadow: var(--shadow-md);
}

.article-card--light .article-title { color: var(--dk); }
.article-card--light .article-meta { color: var(--txt3); }

/* ============================================================
   CONTACT / FORM SECTION
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.value-list {
  margin: var(--space-lg) 0 var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.value-check {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--cr);
  border: 2px solid var(--gr);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  color: var(--gr);
  margin-top: 1px;
}

.value-text {
  font-size: 13px;
  color: var(--txt2);
  line-height: 1.55;
}

.value-text strong { color: var(--dk); }

.reach-list { display: flex; flex-direction: column; gap: 10px; }

.reach-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-md);
  padding: 12px var(--space-md);
}

.reach-ico {
  width: 34px; height: 34px;
  border-radius: var(--r-sm);
  background: var(--dk);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.reach-lbl {
  font-size: 10px;
  font-weight: 600;
  color: var(--txt3);
  text-transform: uppercase;
  letter-spacing: .5px;
}

.reach-val {
  font-size: 13px;
  color: var(--dk);
  font-weight: 500;
}

.form-card {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-xl);
  padding: var(--space-xl);
}

.form-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--dk);
  margin-bottom: 4px;
}

.form-subtitle {
  font-size: 12px;
  color: var(--txt3);
  margin-bottom: var(--space-xl);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--dk2);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,.06);
  margin-bottom: var(--space-lg);
}

.footer-brand-text {
  font-size: 12px;
  color: rgba(255,255,255,.4);
  line-height: 1.65;
  max-width: 200px;
  margin-top: 10px;
}

.footer-col-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,.45);
  transition: color .15s;
}

.footer-links a:hover { color: rgba(255,255,255,.9); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,.25);
}

.footer-socials { display: flex; gap: 8px; }

.social-btn {
  width: 30px; height: 30px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: rgba(255,255,255,.5);
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}

.social-btn:hover {
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.9);
  border-color: rgba(255,255,255,.2);
}

/* ============================================================
   SINGLE PRODUCT PAGE
   ============================================================ */
.product-hero {
  background: var(--dk2);
  padding: 80px var(--space-lg) 60px;
  position: relative;
  overflow: hidden;
}

.product-hero-content {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,.4);
  margin-bottom: var(--space-lg);
  margin-top:20px
}

.breadcrumb a { color: rgb(142 170 161); }
.breadcrumb a:hover { color: #8aaa94; }
.breadcrumb-sep { font-size: 10px; color: rgbrgb(142 170 161); }

.product-page-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.product-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 20px);
}

/* ============================================================
   BLOG / KNOWLEDGE HUB
   ============================================================ */
.blog-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
}

.post-card {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all .2s;
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--bd2);
}

.post-card-img {
  width: 100%;
  aspect-ratio: 16/8;
  object-fit: cover;
  background: var(--cr);
}

.post-card-body {
  padding: var(--space-lg);
}

.post-cat {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--gr);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.post-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dk);
  line-height: 1.35;
  margin-bottom: 8px;
}

.post-excerpt {
  font-size: 13px;
  color: var(--txt2);
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.post-meta {
  font-size: 11px;
  color: var(--txt3);
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Sidebar */
.sidebar-widget {
  background: #fafaf8;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.sidebar-widget-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--dk);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--bd);
}

/* ============================================================
   SUPPLIER / CTA SECTION
   ============================================================ */
.supplier-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.supplier-logo-item {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 13px;
  font-weight: 600;
  color: var(--txt2);
  transition: all .15s;
}

.supplier-logo-item:hover {
  border-color: var(--gr);
  color: var(--dk);
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-green  { color: var(--gr); }
.text-muted  { color: var(--txt2); }
.text-white  { color: #fff; }
.text-yellow { color: var(--yw); }
.text-sm     { font-size: 13px; }
.text-xs     { font-size: 11px; }

.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .product-layout { grid-template-columns: 1fr; }
  .product-detail { position: static; }
  .blog-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --space-3xl: 60px; }

  .main-nav { display: none; }
  .main-nav.is-open {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: #fff;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--bd);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }

  .menu-toggle { display: flex; }
  .nav-cta { display: none; }

  .grid-2,
  .grid-3 { grid-template-columns: 1fr; }

  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .hero h1 { font-size: 2rem; letter-spacing: -1px; }
  .hero-stats { flex-wrap: wrap; }
  .hero-stat { padding: 12px 20px; }

  .product-page-layout { grid-template-columns: 1fr; }
  .product-sidebar { position: static; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .footer-brand-text { max-width: 100%; }
}

@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: 1fr; }
  .lang-switch { display: none; }
}

/* ═══════════════════════════════════════════════
   ADVANCED MATERIAL — BRAND TOKENS
═══════════════════════════════════════════════ */
:root {
  --dk:  #163e2b;
  --dk2: #0d2419;
  --gr:  #609f74;
  --gr2: #4a8860;
  --yw:  #FFFC99;
  --cr:  #fffee3;
  --wh:  #ffffff;
  --txt:  #0f1f15;
  --txt2: #4a6652;
  --txt3: #8aaa94;
  --bd:  #d4e8da;
  --bd2: #b8d4c2;
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --shadow-sm: 0 2px 8px rgba(22,62,43,0.07);
  --shadow-md: 0 4px 20px rgba(22,62,43,0.10);
}

/* ═══════════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════════ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, 'Inter', 'Segoe UI', sans-serif;
  color: var(--txt);
  background: #fff;
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol { list-style: none; }

/* ═══════════════════════════════════════════════
   LINK HOVER — gạch chân tất cả <a>, trừ .btn-*
═══════════════════════════════════════════════ */
a {
  color: var(--gr2);
  text-decoration: none;
  text-underline-offset: 3px;
  text-decoration-color: transparent;
  transition: color .15s, text-decoration-color .15s;
}

a:hover {
  color: var(--dk);
  text-decoration: underline;
  text-decoration-color: var(--dk);
}

/* Ngoại lệ: button CTA không gạch chân */
a.btn-primary:hover,
a.btn-ghost:hover {
  text-decoration: none;
}

p {
  font-size: 15px;
  color: var(--txt);
  line-height: 1.75;
  margin-bottom: 16px;
}

h2, h3, h4 {
  color: var(--dk);
  line-height: 1.2;
}

strong { font-weight: 700; }

/* ═══════════════════════════════════════════════
   LAYOUT
═══════════════════════════════════════════════ */
.article-wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ═══════════════════════════════════════════════
   BREADCRUMB
═══════════════════════════════════════════════ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.breadcrumb a,
.breadcrumb span {
  font-size: 12px;
  color: var(--txt3);
}

.breadcrumb a {
  transition: color .15s, text-decoration-color .15s;
  text-underline-offset: 3px;
  text-decoration-color: #92aaa1;
}

.breadcrumb a:hover {
  color: var(--dk);
  text-decoration: underline;
  text-decoration-color: var(--dk);
}

.breadcrumb .sep { color: var(--bd2); }

.breadcrumb .current {
  color: var(--txt2);
  font-weight: 500;
}

/* ═══════════════════════════════════════════════
   HERO BANNER
═══════════════════════════════════════════════ */
.article-hero {
  background: var(--dk2);
  border-radius: var(--r-xl);
  padding: 48px 40px 44px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.article-hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96,159,116,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(96,159,116,0.18);
  color: var(--gr);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.hero-eyebrow i { font-size: 13px; }

.article-hero h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.article-hero h1 span { color: var(--yw); }

.hero-deck {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  max-width: 620px;
  margin-bottom: 28px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255,255,255,0.45);
}

.hero-meta-item i {
  font-size: 14px;
  color: rgba(255,255,255,0.3);
}

.hero-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.hero-tag {
  background: rgba(255,252,153,0.12);
  color: var(--yw);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 0.3px;
}

/* ═══════════════════════════════════════════════
   TABLE OF CONTENTS
═══════════════════════════════════════════════ */
.toc-card {
  background: var(--cr);
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: 24px 28px;
  margin-bottom: 40px;
}

.toc-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--txt3);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 7px;
}

.toc-title i { font-size: 14px; }

.toc-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 24px;
}

.toc-list a {
  font-size: 13px;
  color: var(--txt2);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  transition: color .15s, text-decoration-color .15s;
  text-underline-offset: 3px;
  text-decoration-color: transparent;
}

.toc-list a:hover {
  color: var(--dk);
  text-decoration: underline;
  text-decoration-color: var(--dk);
}

.toc-list a::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--gr);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════
   SECTION STRUCTURE
═══════════════════════════════════════════════ */
.section { margin-bottom: 48px; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--gr2);
  margin-bottom: 10px;
}

.section-label i { font-size: 14px; }

h2.section-title {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 800;
  color: var(--dk);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 8px;
}

h3.sub-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dk);
  margin: 28px 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

h3.sub-title i {
  font-size: 18px;
  color: var(--gr);
}

.section-intro {
  font-size: 15px;
  color: var(--txt2);
  line-height: 1.75;
  margin-bottom: 24px;
}

/* ═══════════════════════════════════════════════
   INSIGHT BOX
═══════════════════════════════════════════════ */
.insight-box {
  background: linear-gradient(135deg, var(--dk) 0%, var(--dk2) 100%);
  border-radius: var(--r-lg);
  padding: 28px 32px;
  margin: 32px 0;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.insight-icon svg.svg-inline--fa {
    color: #fdfd91;
}

.insight-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: var(--r-md);
  background: rgba(255,252,153,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.insight-icon i {
  font-size: 22px;
  color: var(--yw);
}

.insight-box h3 {
  color: var(--yw);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3px;
  margin-bottom: 6px;
}

.insight-box p {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  line-height: 1.65;
  margin: 0;
}

/* ═══════════════════════════════════════════════
   CALLOUT STRIP
═══════════════════════════════════════════════ */
.callout-strip {
  background: var(--cr);
  border: 1px solid var(--bd);
  border-left: 4px solid var(--gr);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  padding: 18px 20px;
  margin: 28px 0;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.callout-strip i {
  font-size: 20px;
  color: var(--gr);
  flex-shrink: 0;
  margin-top: 2px;
}

.callout-strip p {
  font-size: 14px;
  color: var(--txt);
  line-height: 1.65;
  margin: 0;
}

.callout-strip strong {
  color: var(--dk);
  font-weight: 700;
}

/* ═══════════════════════════════════════════════
   STAT STRIP
═══════════════════════════════════════════════ */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--bd);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 32px 0;
}

.stat-cell {
  background: #fff;
  padding: 22px 20px;
  text-align: center;
}

.stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--dk);
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat-num span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gr);
}

.stat-lbl {
  font-size: 11px;
  color: var(--txt3);
  margin-top: 5px;
  letter-spacing: 0.3px;
}

/* ═══════════════════════════════════════════════
   CHALLENGE / FEATURE CARDS
═══════════════════════════════════════════════ */
.challenge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 14px;
  margin: 24px 0;
}

.challenge-card {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: 20px 18px;
  transition: all .2s;
}

.challenge-card:hover {
  border-color: var(--gr);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.ch-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--r-sm);
  background: var(--cr);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.ch-icon i {
  font-size: 20px;
  color: var(--dk);
}

.challenge-card h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--dk);
  margin-bottom: 5px;
}

.challenge-card p {
  font-size: 12px;
  color: var(--txt2);
  line-height: 1.55;
  margin: 0;
}

/* ═══════════════════════════════════════════════
   PRODUCT HERO CARDS
═══════════════════════════════════════════════ */
.product-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 24px 0;
}

.product-hero-card {
  border-radius: var(--r-xl);
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.phc-320   { background: var(--dk); color: #fff; }
.phc-t7109 { background: var(--cr); border: 1px solid var(--bd); }

.phc-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.phc-320 .phc-badge   { background: rgba(255,252,153,0.2); color: var(--yw); }
.phc-t7109 .phc-badge { background: rgba(22,62,43,0.1); color: var(--gr2); }

.phc-name {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.phc-320 .phc-name   { color: #fff; }
.phc-t7109 .phc-name { color: var(--dk); }

.phc-tagline {
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.phc-320 .phc-tagline   { color: rgba(255,255,255,0.65); }
.phc-t7109 .phc-tagline { color: var(--txt2); }

.phc-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.phc-pill {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 10px;
}

.phc-320 .phc-pill   { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.85); }
.phc-t7109 .phc-pill { background: rgba(22,62,43,0.08); color: var(--dk); }

/* ═══════════════════════════════════════════════
   SPEC TABLES
═══════════════════════════════════════════════ */
.spec-table-wrap {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
}

.spec-table-head {
  background: var(--dk);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}

.spec-table-head i {
  color: var(--yw);
  font-size: 16px;
}

table.spec-tbl {
  width: 100%;
  border-collapse: collapse;
}

table.spec-tbl th {
  background: var(--cr);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--txt3);
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--bd);
}

table.spec-tbl td {
  padding: 11px 16px;
  font-size: 13px;
  border-bottom: 1px solid rgba(212,232,218,0.5);
  vertical-align: middle;
}

table.spec-tbl tr:last-child td { border-bottom: none; }
table.spec-tbl tr:hover td { background: rgba(255,254,227,0.5); }

.spec-tbl .prop-col {
  font-weight: 600;
  color: var(--txt);
  width: 38%;
}

.spec-tbl .val-col {
  color: var(--dk);
  font-weight: 500;
  font-family: monospace;
  font-size: 12.5px;
}

.spec-tbl .note-col {
  color: var(--txt3);
  font-size: 12px;
  font-style: italic;
}

.spec-highlight { background: rgba(255,252,153,0.25) !important; }

/* ═══════════════════════════════════════════════
   COMPARISON TABLE
═══════════════════════════════════════════════ */
.compare-wrap {
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
}

table.compare-tbl { width: 100%; border-collapse: collapse; }

table.compare-tbl thead tr { background: var(--dk2); }

table.compare-tbl thead th {
  padding: 14px 16px;
  font-size: 12px;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  text-align: left;
  letter-spacing: 0.5px;
}

table.compare-tbl thead th:nth-child(2),
table.compare-tbl thead th:nth-child(3) { text-align: center; }

.th-product { font-size: 14px !important; font-weight: 800 !important; color: #fff !important; }
.th-320     { color: var(--yw) !important; }

table.compare-tbl tbody tr { border-bottom: 1px solid rgba(212,232,218,0.4); }
table.compare-tbl tbody tr:last-child { border-bottom: none; }
table.compare-tbl tbody tr:hover { background: rgba(255,254,227,0.35); }

table.compare-tbl td {
  padding: 11px 16px;
  font-size: 13px;
  color: var(--txt);
  vertical-align: middle;
}

table.compare-tbl td:nth-child(1) {
  font-weight: 600;
  color: var(--txt2);
  font-size: 12px;
  width: 34%;
}

table.compare-tbl td:nth-child(2),
table.compare-tbl td:nth-child(3) {
  text-align: center;
  font-weight: 600;
  color: var(--dk);
  font-size: 13px;
}

.winner-badge {
  display: inline-block;
  background: var(--yw);
  color: var(--dk2);
  font-size: 10px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 8px;
  letter-spacing: 0.3px;
}

/* ═══════════════════════════════════════════════
   DECISION GUIDE
═══════════════════════════════════════════════ */
.decision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.decision-card {
  border-radius: var(--r-lg);
  padding: 24px;
  border: 1px solid var(--bd);
}

.dc-320   { background: var(--dk); border-color: var(--dk); }
.dc-t7109 { background: var(--cr); }

.dc-title {
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dc-320 .dc-title   { color: var(--yw); }
.dc-t7109 .dc-title { color: var(--dk); }
.dc-title i         { font-size: 16px; }

.dc-item {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13px;
  line-height: 1.55;
  margin-bottom: 10px;
}

.dc-item:last-child { margin-bottom: 0; }

.dc-320 .dc-item   { color: rgba(255,255,255,0.8); }
.dc-t7109 .dc-item { color: var(--txt2); }

.dc-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 6px;
}

.dc-320 .dc-dot   { background: var(--yw); }
.dc-t7109 .dc-dot { background: var(--gr); }

/* ═══════════════════════════════════════════════
   FAQ
═══════════════════════════════════════════════ */
.faq-section { margin: 40px 0; }

.faq-item {
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: 22px 24px;
  margin-bottom: 12px;
  background: #fff;
}

.faq-q {
  font-size: 14px;
  font-weight: 700;
  color: var(--dk);
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.faq-q::before {
  content: 'Q';
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--dk);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.faq-a {
  font-size: 13.5px;
  color: var(--txt2);
  line-height: 1.7;
  padding-left: 32px;
  margin: 0;
}

/* ═══════════════════════════════════════════════
   CTA BLOCK
═══════════════════════════════════════════════ */
.cta-block {
  background: var(--dk2);
  border-radius: var(--r-xl);
  padding: 44px 40px;
  text-align: center;
	margin-top:40px
}

.cta-block h2 {
  color: #fff;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.cta-block p {
  color: rgba(255,255,255,0.6);
  font-size: 15px;
  max-width: 480px;
  margin: 0 auto 28px;
}

.cta-btn-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--yw);
  color: var(--dk2);
  font-weight: 800;
  font-size: 14px;
  padding: 12px 28px;
  border-radius: var(--r-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: opacity .15s;
}

.btn-primary:hover {
  opacity: .88;
  color: var(--dk2);
  text-decoration: none;
}

.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.8);
  font-weight: 600;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: var(--r-md);
  border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: all .15s;
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.14);
  color: #fff;
  text-decoration: none;
}

/* ═══════════════════════════════════════════════
   CHECKLIST
═══════════════════════════════════════════════ */
.check-list {
  margin: 16px 0 0 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--txt2);
}

.check-list li i {
  color: var(--gr);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════ */
@media (max-width: 640px) {
  .article-hero              { padding: 32px 24px; }
  .toc-list                  { grid-template-columns: 1fr; }
  .product-hero-grid         { grid-template-columns: 1fr; }
  .decision-grid             { grid-template-columns: 1fr; }
  .stat-strip                { grid-template-columns: 1fr; }
  .compare-tbl td:nth-child(1) { font-size: 11px; }
  .challenge-grid            { grid-template-columns: 1fr 1fr; }
  .cta-block                 { padding: 32px 20px; }
  .insight-box               { flex-direction: column; gap: 12px; }
}

@media (max-width: 420px) {
  .challenge-grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════
   POST HERO — single.php header
   Matches the dark hero banner style in screenshot
═══════════════════════════════════════════════ */
.post-hero {
  background: var(--dk2);
  padding: 56px 0 48px;
  position: relative;
  overflow: hidden;
}
 
/* Subtle dot-grid overlay */
.post-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(96,159,116,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,159,116,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
 
/* Ambient radial glow top-right */
.post-hero__glow {
  position: absolute;
  top: -100px;
  right: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96,159,116,0.14) 0%, transparent 70%);
  pointer-events: none;
}
 
/* Inner content wrapper — max-width matches article body */
.post-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 840px;
  margin: 0 auto;
  padding: 0 24px;
}
 
/* Eyebrow pill — "TECHNICAL GUIDE" */
.post-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(96,159,116,0.18);
  color: var(--gr);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 18px;
}
 
.post-hero__eyebrow i { font-size: 13px; }
 
/* H1 title */
.post-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
 
/* Meta row: author · date · reading time */
.post-hero__meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
 
.post-hero__meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255,255,255,0.45);
}
 
.post-hero__meta-item i {
  font-size: 14px;
  color: rgba(255,255,255,0.28);
}
 
/* Tag pills row */
.post-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
 
.post-hero__tag {
  background: rgba(255,252,153,0.12);
  color: var(--yw);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 11px;
  border-radius: 12px;
  letter-spacing: 0.3px;
  text-decoration: none;
  transition: background .15s;
}
 
.post-hero__tag:hover {
  background: rgba(255,252,153,0.22);
  color: var(--yw);
  text-decoration: none;
}
 
/* ── Responsive ── */
@media (max-width: 640px) {
  .post-hero          { padding: 40px 0 36px; }
  .post-hero__title   { font-size: 1.75rem; }
  .post-hero__meta    { gap: 12px; }
}
 
 
/* ═══════════════════════════════════════════════
   TABLE OF CONTENTS — post-toc
   Style khớp với screenshot: nền kem #fffee3,
   bullet xanh, text muted, single column
═══════════════════════════════════════════════ */
 
/* Outer wrapper: căn giữa, max-width khớp với post-hero */
.post-toc-wrap {
  max-width: 840px;
  margin: 0 auto;
  padding: 0 24px;
}
 
/* Card container */
.post-toc-inner {
  margin: 32px 0 8px;
}
 
.post-toc {
  background: var(--cr);           /* #fffee3 — cream */
  border: 1px solid var(--bd);     /* #d4e8da — light green border */
  border-radius: var(--r-xl);      /* 20px — rounded card */
  padding: 28px 32px 32px;
}
 
/* "IN THIS ARTICLE" label */
.post-toc__title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  color: var(--txt3);              /* muted green */
  margin-bottom: 18px;
}
 
.post-toc__title i {
  font-size: 14px;
  color: var(--gr);
}
 
/* List: single column, generous line spacing */
.post-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
 
/* Each item */
.post-toc__item {
  display: flex;
  align-items: center;
  gap: 0;
}
 
/* Bullet dot */
.post-toc__item::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gr);
  flex-shrink: 0;
  margin-right: 14px;
}
 
/* Link */
.post-toc__link {
  font-size: 15px;
  font-weight: 400;
  color: var(--txt2);
  text-decoration: none;
  padding: 9px 0;
  line-height: 1.4;
  transition: color .15s, text-decoration-color .15s;
  text-underline-offset: 3px;
  text-decoration-color: transparent;
  display: block;
  width: 100%;
}
 
.post-toc__link:hover {
  color: var(--dk);
  text-decoration: underline;
  text-decoration-color: var(--dk);
}
 
/* Active state — highlight heading đang visible (driven by JS scroll spy) */
.post-toc__item.is-active::before {
  background: var(--dk);
}
 
.post-toc__item.is-active .post-toc__link {
  color: var(--dk);
  font-weight: 600;
}
 
/* ── Responsive ── */
@media (max-width: 640px) {
  .post-toc        { padding: 22px 20px 24px; }
  .post-toc__link  { font-size: 14px; padding: 8px 0; }
}

/* ── Industry pills row ── */
.post-hero__industries {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  color: rgba(255,255,255,.45);
  font-size: 12px;
}
 
.post-hero__industries .ti {
  font-size: 15px;
  color: var(--gr);
  flex-shrink: 0;
}
 
.post-hero__industry-pill {
  display: inline-flex;
  align-items: center;
  background: rgba(22,62,43,.6);
  border: 1px solid rgba(96,159,116,.35);
  color: #a8d4b6;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .03em;
  padding: 4px 12px;
  border-radius: 20px;
  text-decoration: none;
  transition: background .2s, border-color .2s, color .2s;
}
 
.post-hero__industry-pill:hover {
  background: rgba(96,159,116,.25);
  border-color: var(--gr);
  color: var(--yw);
}
 
/* ── Tag pills row ── */
.post-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
 
.post-hero__tag {
  display: inline-block;
  background: rgba(255,252,153,.1);
  border: 1px solid rgba(255,252,153,.25);
  color: rgba(255,252,153,.75);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 12px;
  text-decoration: none;
  transition: background .2s, color .2s;
}
 
.post-hero__tag:hover {
  background: rgba(255,252,153,.2);
  color: var(--yw);
}
 
@media (max-width: 600px) {
  .post-hero { padding: 56px 0 40px; }
  .post-hero__title { font-size: 1.6rem; }
}
table.compare-tbl td:nth-child(3),
table.compare-tbl td:nth-child(4) {
  text-align: center;
  font-weight: 600;
  color: var(--dk);
  font-size: 13px;
}
table.compare-tbl thead th:nth-child(4) { text-align: center; }
/* ============================================================
   RELATED ARTICLES SLIDER
   ============================================================ */
.related-articles {
  background: var(--dk);
  padding: 64px 0 56px;
  overflow: hidden;
}
 
/* ── Header row ── */
.related-articles__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto 36px;
  padding: 0 32px;
}
 
.related-articles__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--gr);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
 
.related-articles__title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--wh);
  margin: 0;
  letter-spacing: -.02em;
}
 
.related-articles__title span {
  color: var(--yw);
}
 
/* ── Prev / Next buttons ── */
.related-articles__nav {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
 
.ra-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(96,159,116,.4);
  background: rgba(96,159,116,.1);
  color: var(--gr);
  cursor: pointer;
  font-size: 18px;
  transition: background .2s, border-color .2s, color .2s, opacity .2s;
}
 
.ra-btn:hover:not(:disabled) {
  background: var(--gr);
  border-color: var(--gr);
  color: var(--wh);
}
 
.ra-btn:disabled {
  opacity: .3;
  cursor: default;
}
 
/* ── Slider wrapper & track ── */
.ra-slider-wrap {
  overflow: hidden;
  padding: 0 32px;
  max-width: 1200px;
  margin: 0 auto;
}
 
.ra-track {
  display: flex;
  gap: 24px;
  transition: transform .4s cubic-bezier(.25,.8,.25,1);
  will-change: transform;
  user-select: none;
}
 
/* ── Individual card ── */
.ra-card {
  flex: 0 0 calc((100% - 48px) / 3);   /* 3 cards, 2 gaps of 24px */
  min-width: 0;
}
 
.ra-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(96,159,116,.15);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  transition: border-color .2s, background .2s, transform .2s, box-shadow .2s;
}
 
.ra-card__link:hover {
  border-color: rgba(96,159,116,.45);
  background: rgba(255,255,255,.07);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,.25);
}
 
/* Thumbnail */
.ra-card__thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: rgba(96,159,116,.08);
  overflow: hidden;
  flex-shrink: 0;
}
 
.ra-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}
 
.ra-card__link:hover .ra-card__thumb img {
  transform: scale(1.04);
}
 
.ra-card__thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: rgba(96,159,116,.3);
}
 
.ra-card__cat {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(22,62,43,.85);
  border: 1px solid rgba(96,159,116,.3);
  color: var(--gr);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  padding: 3px 8px;
  border-radius: 10px;
  backdrop-filter: blur(4px);
}
 
/* Body */
.ra-card__body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
 
.ra-card__title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--wh);
  line-height: 1.35;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
 
.ra-card__excerpt {
  font-size: .82rem;
  line-height: 1.6;
  color: rgba(255,255,255,.5);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
 
/* Meta row */
.ra-card__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,.07);
}
 
.ra-card__date,
.ra-card__read {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: .75rem;
  color: rgba(255,255,255,.35);
}
 
.ra-card__date .ti,
.ra-card__read .ti {
  font-size: 13px;
}
 
/* Industry pills on card */
.ra-card__industries {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
 
.ra-card__ind-pill {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  color: #a8d4b6;
  background: rgba(22,62,43,.7);
  border: 1px solid rgba(96,159,116,.25);
  padding: 2px 8px;
  border-radius: 10px;
}
 
/* ── Dot pagination ── */
.ra-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}
 
.ra-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background .2s, transform .2s, width .2s;
}
 
.ra-dot--active {
  background: var(--gr);
  width: 24px;
  border-radius: 4px;
}
 
/* ── Responsive ── */
@media (max-width: 1023px) {
  .ra-card {
    flex: 0 0 calc((100% - 24px) / 2);  /* 2 cards */
  }
}
 
@media (max-width: 639px) {
  .ra-card {
    flex: 0 0 85%;   /* 1 card, peek next */
  }
  .related-articles__head {
    padding: 0 20px;
    flex-wrap: wrap;
    align-items: flex-start;
  }
  .ra-slider-wrap {
    padding: 0 20px;
  }
}

/*
Theme Name: Advanced Material
Theme URI: https://advanced-material.org
Author: Advanced Material
Author URI: https://advanced-material.org
Description: Professional B2B theme for Advanced Material — technical materials consulting for electronics, automotive, and telecom manufacturing. Supports English, Vietnamese, and Chinese via WPML/Polylang.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: Proprietary
Text Domain: advanced-material
Tags: business, custom-menu, featured-images, threaded-comments, translation-ready, rtl-language-support, full-width-template, custom-logo, blog, e-commerce
*/

/* ============================================================
   DESIGN TOKENS — Advanced Material Brand System
   ============================================================ */
:root {
  /* Brand Colors */
  --dk:  #163e2b;
  --dk2: #0d2419;
  --gr:  #609f74;
  --gr2: #4a8860;
  --yw:  #FFFC99;
  --cr:  #fffee3;
  --wh:  #ffffff;

  /* Text */
  --txt:  #0f1f15;
  --txt2: #4a6652;
  --txt3: #8aaa94;

  /* Borders */
  --bd:  #d4e8da;
  --bd2: #b8d4c2;

  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Typography */
  --font-body:    'Inter', 'Segoe UI', -apple-system, sans-serif;
  --font-display: 'Inter', sans-serif;

  /* Radius */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(22,62,43,0.06);
  --shadow-md: 0 4px 20px rgba(22,62,43,0.08);
  --shadow-lg: 0 12px 40px rgba(22,62,43,0.12);

  /* Layout */
  --max-width: 1200px;
  --nav-height: 60px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--txt);
  background: #fff;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .15s ease;
}

ul, ol { list-style: none; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ============================================================
   TYPOGRAPHY SCALE
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--dk);
}

h1 { font-size: clamp(2rem, 4vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
h4 { font-size: 1.15rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p { margin-bottom: var(--space-md); line-height: 1.75; }
p:last-child { margin-bottom: 0; }

/* ============================================================
   WORDPRESS CORE CLASSES
   ============================================================ */
.screen-reader-text {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.alignleft  { float: left; margin: 0 var(--space-lg) var(--space-md) 0; }
.alignright { float: right; margin: 0 0 var(--space-md) var(--space-lg); }
.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.alignwide { max-width: 1400px; margin-left: auto; margin-right: auto; }
.alignfull { width: 100vw; margin-left: calc(-50vw + 50%); }

.wp-caption { max-width: 100%; }
.wp-caption-text { font-size: .8rem; color: var(--txt3); margin-top: var(--space-xs); }

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */

.section {
  padding: var(--space-3xl) 0;
}

.section--sm { padding: var(--space-2xl) 0; }
.section--dark { background: var(--dk); }
.section--dark2 { background: var(--dk2); }
.section--light { background: #fafaf8; }
.section--cream { background: var(--cr); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ============================================================
   EYEBROW / SECTION LABELS
   ============================================================ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  color: var(--gr);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.eyebrow::before {
  content: '';
  width: 18px;
  height: 2px;
  background: var(--gr);
  border-radius: 2px;
  flex-shrink: 0;
}

.eyebrow--light { color: var(--yw); }
.eyebrow--light::before { background: var(--yw); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 22px;
  border-radius: var(--r-sm);
  border: none;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s ease;
  letter-spacing: .2px;
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--dk);
  color: #fff;
}
.btn--primary:hover {
  background: var(--gr2);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--yellow {
  background: var(--yw);
  color: var(--dk);
}
.btn--yellow:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(255,252,153,.3);
}

.btn--ghost {
  background: transparent;
  color: var(--dk);
  border: 1.5px solid var(--bd2);
}
.btn--ghost:hover {
  border-color: var(--gr);
  background: var(--cr);
}

.btn--ghost-light {
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.14);
}
.btn--ghost-light:hover { background: rgba(255,255,255,.1); }

.btn--lg { padding: 14px 28px; font-size: 14px; }
.btn--sm { padding: 7px 14px; font-size: 12px; }
.btn--full { width: 100%; justify-content: center; }

/* ============================================================
   TAGS & PILLS
   ============================================================ */
.tag {
  display: inline-block;
  background: rgba(22,62,43,.06);
  color: var(--dk);
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 12px;
}

.pill {
  display: inline-block;
  background: var(--cr);
  color: var(--txt2);
  font-size: 10px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 10px;
}

.badge {
  display: inline-block;
  background: var(--cr);
  color: var(--gr2);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  transition: all .2s ease;
}

.card--hover:hover {
  border-color: var(--gr);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.card--dark {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  transition: all .2s ease;
}

.card--dark:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(96,159,116,.35);
}

/* ============================================================
   FORMS
   ============================================================ */
.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--txt);
  margin-bottom: var(--space-xs);
}

.form-control {
  width: 100%;
  padding: 10px 13px;
  border: 1.5px solid var(--bd);
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--txt);
  background: var(--cr);
  outline: none;
  transition: border-color .15s, background .15s;
}

.form-control:focus {
  border-color: var(--gr);
  background: #fff;
}

textarea.form-control {
  min-height: 80px;
  resize: vertical;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(22,62,43,.08);
  height: var(--nav-height);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark {
  width: 30px;
  height: 30px;
  background: var(--dk);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-wordmark {
  font-size: 14px;
  font-weight: 700;
  color: var(--dk);
  letter-spacing: -.2px;
}

.logo-wordmark span { color: var(--gr); font-weight: 400; }

/* Main Nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  font-size: 13px;
  color: var(--txt2);
  font-weight: 500;
  transition: color .15s;
  position: relative;
}

.main-nav a:hover,
.main-nav a.current-menu-item { color: var(--dk); }

.main-nav a.current-menu-item::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--gr);
  border-radius: 1px;
}

/* Dropdown */
.nav-item-has-children { position: relative; }

.nav-item-has-children > .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: -16px;
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm);
  z-index: 100;
}

.nav-item-has-children:hover > .sub-menu { display: block; }

.sub-menu li a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--txt2);
  border-radius: var(--r-sm);
  transition: all .15s;
}

.sub-menu li a:hover {
  background: var(--cr);
  color: var(--dk);
}

/* Nav Right */
.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Language Switcher */
.lang-switch {
  display: flex;
  gap: 2px;
  background: var(--cr);
  border-radius: 20px;
  padding: 3px;
}

.lang-btn {
  padding: 3px 10px;
  border-radius: 16px;
  border: none;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--txt2);
  transition: all .15s;
  text-decoration: none;
  display: inline-block;
}

.lang-btn:hover,
.lang-btn.active { background: var(--dk); color: #fff; }

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dk);
  border-radius: 2px;
  transition: all .3s;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px var(--space-lg) 60px;
  background: var(--dk2);
  position: relative;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(96,159,116,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,159,116,.07) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-glow {
  position: absolute;
  top: -120px; right: -80px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(96,159,116,.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-glow-2 {
  position: absolute;
  bottom: -100px; left: -60px;
  width: 360px; height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,252,153,.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 660px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(96,159,116,.35);
  background: rgba(96,159,116,.1);
  color: var(--gr);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  padding: 5px 13px 5px 9px;
  border-radius: 20px;
  margin-bottom: var(--space-xl);
  text-transform: uppercase;
}

.hero-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gr);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); }
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -2px;
  color: #fff;
  margin-bottom: var(--space-lg);
}

.hero h1 em { font-style: normal; color: var(--yw); }
.hero h1 .hl { color: var(--gr); }

.hero-sub {
  font-size: 16px;
  color: rgba(255,255,255,.55);
  line-height: 1.75;
  max-width: 480px;
  margin-bottom: var(--space-xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: flex;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(255,255,255,.03);
  width: fit-content;
}

.hero-stat {
  padding: 16px 28px;
  border-right: 1px solid rgba(255,255,255,.08);
}

.hero-stat:last-child { border-right: none; }

.hero-stat-num {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.hero-stat-lbl {
  font-size: 11px;
  color: rgba(255,255,255,.4);
  margin-top: 2px;
}

/* ============================================================
   MARQUEE
   ============================================================ */
.marquee-strip {
  background: var(--yw);
  padding: 11px 0;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  gap: 48px;
  white-space: nowrap;
  animation: marquee-scroll 22s linear infinite;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--dk);
  flex-shrink: 0;
}

.marquee-sep {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--gr2);
  flex-shrink: 0;
}

/* ============================================================
   PRODUCT SECTION
   ============================================================ */
.product-layout {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-lg);
  align-items: start;
}

.product-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.product-item {
  padding: var(--space-md) 18px;
  border-radius: var(--r-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .2s ease;
}

.product-item:hover { background: #fff; border-color: var(--bd); }

.product-item.active {
  background: #fff;
  border-color: var(--gr);
  box-shadow: var(--shadow-md);
}

.product-item-head {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: 6px;
}

.product-item-icon {
  width: 36px; height: 36px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.product-item-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--dk);
}

.product-item-desc {
  font-size: 12px;
  color: var(--txt2);
  line-height: 1.6;
  padding-left: 44px;
}

.product-detail {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: var(--space-xl);
  position: sticky;
  top: calc(var(--nav-height) + 16px);
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.spec-item {
  background: var(--cr);
  border-radius: var(--r-sm);
  padding: 10px 12px;
}

.spec-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .5px;
  color: var(--txt3);
  text-transform: uppercase;
  margin-bottom: 3px;
}

.spec-val {
  font-size: 13px;
  font-weight: 600;
  color: var(--dk);
}

.tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-md);
}

/* ============================================================
   APPLICATION CARDS
   ============================================================ */
.app-card {
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  transition: all .22s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: #fff;
}

.app-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--dk), var(--gr));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}

.app-card:hover {
  border-color: var(--gr);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.app-card:hover::before { transform: scaleX(1); }

.app-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--txt3);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.app-icon-wrap {
  width: 48px; height: 48px;
  border-radius: var(--r-md);
  background: var(--cr);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--space-md);
}

.app-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--dk);
  margin-bottom: 8px;
}

.app-desc {
  font-size: 13px;
  color: var(--txt2);
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.app-pills { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: var(--space-xl); }

.app-arrow {
  position: absolute;
  bottom: var(--space-md);
  right: var(--space-md);
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid var(--bd);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--txt3);
  transition: all .2s;
}

.app-card:hover .app-arrow {
  background: var(--dk);
  border-color: var(--dk);
  color: #fff;
}

/* ============================================================
   KNOWLEDGE / ARTICLE CARDS
   ============================================================ */
.article-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--r-md);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all .2s ease;
  text-decoration: none;
  display: block;
}

.article-card:hover {
  background: rgba(255,255,255,.09);
  border-color: rgba(96,159,116,.4);
}

.article-cat {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--gr);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.article-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  line-height: 1.45;
  margin-bottom: 6px;
}

.article-meta {
  font-size: 11px;
  color: rgba(255,255,255,.35);
}

/* Light variant for blog */
.article-card--light {
  background: #fff;
  border-color: var(--bd);
}

.article-card--light:hover {
  border-color: var(--gr);
  box-shadow: var(--shadow-md);
}

.article-card--light .article-title { color: var(--dk); }
.article-card--light .article-meta { color: var(--txt3); }

/* ============================================================
   CONTACT / FORM SECTION
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.value-list {
  margin: var(--space-lg) 0 var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.value-check {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--cr);
  border: 2px solid var(--gr);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  color: var(--gr);
  margin-top: 1px;
}

.value-text {
  font-size: 13px;
  color: var(--txt2);
  line-height: 1.55;
}

.value-text strong { color: var(--dk); }

.reach-list { display: flex; flex-direction: column; gap: 10px; }

.reach-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-md);
  padding: 12px var(--space-md);
}

.reach-ico {
  width: 34px; height: 34px;
  border-radius: var(--r-sm);
  background: var(--dk);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.reach-lbl {
  font-size: 10px;
  font-weight: 600;
  color: var(--txt3);
  text-transform: uppercase;
  letter-spacing: .5px;
}

.reach-val {
  font-size: 13px;
  color: var(--dk);
  font-weight: 500;
}

.form-card {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-xl);
  padding: var(--space-xl);
}

.form-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--dk);
  margin-bottom: 4px;
}

.form-subtitle {
  font-size: 12px;
  color: var(--txt3);
  margin-bottom: var(--space-xl);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--dk2);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,.06);
  margin-bottom: var(--space-lg);
}

.footer-brand-text {
  font-size: 12px;
  color: rgba(255,255,255,.4);
  line-height: 1.65;
  max-width: 200px;
  margin-top: 10px;
}

.footer-col-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,.45);
  transition: color .15s;
}

.footer-links a:hover { color: rgba(255,255,255,.9); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,.25);
}

.footer-socials { display: flex; gap: 8px; }

.social-btn {
  width: 30px; height: 30px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: rgba(255,255,255,.5);
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}

.social-btn:hover {
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.9);
  border-color: rgba(255,255,255,.2);
}

/* ============================================================
   SINGLE PRODUCT PAGE
   ============================================================ */
.product-hero {
  background: var(--dk2);
  padding: 80px var(--space-lg) 60px;
  position: relative;
  overflow: hidden;
}

.product-hero-content {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,.4);
  margin-bottom: var(--space-lg);
}

.breadcrumb a { color: #92aaa1; }
.breadcrumb a:hover { color: #92aaa1; }
.breadcrumb-sep { font-size: 10px; }

.product-page-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.product-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 20px);
}

/* ============================================================
   BLOG / KNOWLEDGE HUB
   ============================================================ */
.blog-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
}

.post-card {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all .2s;
}

.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--bd2);
}

.post-card-img {
  width: 100%;
  aspect-ratio: 16/8;
  object-fit: cover;
  background: var(--cr);
}

.post-card-body {
  padding: var(--space-lg);
}

.post-cat {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--gr);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.post-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dk);
  line-height: 1.35;
  margin-bottom: 8px;
}

.post-excerpt {
  font-size: 13px;
  color: var(--txt2);
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.post-meta {
  font-size: 11px;
  color: var(--txt3);
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Sidebar */
.sidebar-widget {
  background: #fafaf8;
  border: 1px solid var(--bd);
  border-radius: var(--r-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.sidebar-widget-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--dk);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--bd);
}

/* ============================================================
   SUPPLIER / CTA SECTION
   ============================================================ */
.supplier-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.supplier-logo-item {
  background: #fff;
  border: 1px solid var(--bd);
  border-radius: var(--r-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 13px;
  font-weight: 600;
  color: var(--txt2);
  transition: all .15s;
}

.supplier-logo-item:hover {
  border-color: var(--gr);
  color: var(--dk);
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-green  { color: var(--gr); }
.text-muted  { color: var(--txt2); }
.text-white  { color: #fff; }
.text-yellow { color: var(--yw); }
.text-sm     { font-size: 13px; }
.text-xs     { font-size: 11px; }

.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .product-layout { grid-template-columns: 1fr; }
  .product-detail { position: static; }
  .blog-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --space-3xl: 60px; }

  .main-nav { display: none; }
  .main-nav.is-open {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: #fff;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--bd);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }

  .menu-toggle { display: flex; }
  .nav-cta { display: none; }

  .grid-2,
  .grid-3 { grid-template-columns: 1fr; }

  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .hero h1 { font-size: 2rem; letter-spacing: -1px; }
  .hero-stats { flex-wrap: wrap; }
  .hero-stat { padding: 12px 20px; }

  .product-page-layout { grid-template-columns: 1fr; }
  .product-sidebar { position: static; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .footer-brand-text { max-width: 100%; }
}

@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: 1fr; }
  .lang-switch { display: none; }
}

/* ============================================================
   TAXONOMY BROWSE GRID  (archive-am_product.php)
   ============================================================ */
 
/* Grid container — 4 cols desktop, responsive */
.am-tax-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
 
/* Card wrapper */
.am-tax-card {
  position: relative;
  display: block;
  border-radius: 10px;
  overflow: hidden;
  text-decoration: none;
  background: var(--cr);
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
  transition: transform .2s ease, box-shadow .2s ease;
  aspect-ratio: 4 / 3;
}
 
.am-tax-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(22,62,43,.15);
}
 
/* Image fills the card */
.am-tax-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
 
.am-tax-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}
 
.am-tax-card:hover .am-tax-card__img img {
  transform: scale(1.04);
}
 
/* Dark gradient overlay at bottom */
.am-tax-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0)   40%,
    rgba(0,0,0,.62) 100%
  );
}
 
/* Letter placeholder when no image */
.am-tax-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--dk) 0%, var(--gr2) 100%);
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(255,255,255,.4);
  letter-spacing: -1px;
}
 
/* Label row pinned to bottom */
.am-tax-card__label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 14px 14px 12px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
 
.am-tax-card__name {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  letter-spacing: -.01em;
}
 
.am-tax-card__count {
  font-size: 11px;
  color: rgba(255,255,255,.65);
  font-weight: 500;
}
 
/* ── See All card ── */
.am-tax-card--see-all {
  background: var(--dk);
  display: flex;
  align-items: center;
  justify-content: center;
}
 
.am-tax-card--see-all:hover {
  background: var(--gr2);
}
 
.am-tax-card__see-all-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #fff;
  padding: 16px;
  text-align: center;
  height: 100%;
}
 
.am-tax-card__see-all-icon {
  color: var(--yw);
  display: flex;
  transition: transform .2s ease;
}
 
.am-tax-card--see-all:hover .am-tax-card__see-all-icon {
  transform: translateX(4px);
}
 
.am-tax-card__see-all-label {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .01em;
  line-height: 1.4;
}
 
/* ── Responsive ── */
@media (max-width: 1024px) {
  .am-tax-grid { grid-template-columns: repeat(3, 1fr); }
}
 
@media (max-width: 640px) {
  .am-tax-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .am-tax-card__name { font-size: 13px; }
}
 
@media (max-width: 380px) {
  .am-tax-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
}