/* =============================================
   DORZONE – Global Stylesheet
   ============================================= */

/* ── Reset & Base ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Roboto', 'Segoe UI', Arial, sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── CSS Variables ──────────────────────────────── */
:root {
  --primary:   #0b3d6e;   /* deep navy */
  --primary-d: #072a4d;
  --accent:    #f0a500;   /* amber/gold */
  --accent-d:  #d18e00;
  --text:      #2c3e50;
  --text-m:    #6b7a8d;
  --bg-light:  #f5f7fb;
  --bg-dark:   #061e38;
  --border:    #dde3ec;
  --radius:    6px;
  --radius-lg: 12px;
  --shadow:    0 4px 24px rgba(11,61,110,.10);
  --max-w:     1260px;
  --transition: .28s cubic-bezier(.4,0,.2,1);
}

/* ── Typography Helpers ─────────────────────────── */
.section-tag {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 800; color: var(--primary);
  line-height: 1.2; margin-bottom: 14px;
}
.section-desc {
  font-size: 15.5px; color: var(--text-m);
  max-width: 600px; margin: 0 auto 40px;
}
.section-header { text-align: center; margin-bottom: 50px; }

/* ── Buttons ──────────────────────────────────── */
.btn-primary, .btn-outline, .btn-accent {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius);
  font-size: 14px; font-weight: 600;
  transition: all var(--transition);
  cursor: pointer; border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary); color: #fff;
}
.btn-primary:hover { background: var(--primary-d); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(11,61,110,.35); }
.btn-accent {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
.btn-accent:hover { background: var(--accent-d); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(240,165,0,.4); }
.btn-outline {
  background: transparent; color: #fff; border-color: rgba(255,255,255,.6);
}
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-outline-dark {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 26px; border-radius: var(--radius);
  font-size: 14px; font-weight: 600;
  border: 2px solid var(--primary); color: var(--primary);
  transition: all var(--transition);
}
.btn-outline-dark:hover { background: var(--primary); color: #fff; }

/* ── Container ──────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ── Top Bar ──────────────────────────────────── */
#top-bar {
  background: var(--bg-dark);
  padding: 7px 0;
  font-size: 12.5px;
  color: rgba(255,255,255,.7);
}
.top-bar-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px;
}
.top-bar-left, .top-bar-right { display: flex; align-items: center; gap: 20px; }
.top-bar-left a, .top-bar-right a { color: rgba(255,255,255,.7); transition: color var(--transition); }
.top-bar-left a:hover, .top-bar-right a:hover { color: var(--accent); }
.tb-item { display: flex; align-items: center; gap: 6px; }
.tb-item svg { width: 13px; height: 13px; fill: none; stroke: var(--accent); stroke-width: 2; }
.top-bar-right .social-icons { display: flex; gap: 12px; }
.social-icons a { display: flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 50%; border: 1px solid rgba(255,255,255,.2); color: rgba(255,255,255,.7); font-size: 11px; transition: all var(--transition); }
.social-icons a:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── Navigation ────────────────────────────────── */
#main-nav {
  background: #fff;
  box-shadow: 0 2px 12px rgba(11,61,110,.08);
  position: sticky; top: 0; z-index: 1000;
  transition: box-shadow var(--transition);
}
#main-nav.scrolled { box-shadow: 0 4px 24px rgba(11,61,110,.16); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 90px; gap: 20px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 90px; width: auto; object-fit: contain; }
.nav-menu { display: flex; align-items: center; gap: 2px; }
.nav-item { position: relative; display: flex; align-items: center; }
.nav-link {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 14px;
  font-size: 14px; font-weight: 600;
  color: var(--text);
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active { color: var(--primary); background: var(--bg-light); }
.nav-link .arrow { width: 12px; height: 12px; flex-shrink: 0; transition: transform var(--transition); }
.nav-item:hover .nav-link .arrow { transform: rotate(180deg); }
/* Dropdown */
.dropdown {
  position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 220px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(11,61,110,.16);
  border: 1px solid var(--border);
  opacity: 0; visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  z-index: 100;
  padding: 8px;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: none; }
.dropdown a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius);
  font-size: 13.5px; color: var(--text);
  transition: all var(--transition);
}
.dropdown a:hover { background: var(--bg-light); color: var(--primary); padding-left: 16px; }
.dropdown a .dd-icon { width: 30px; height: 30px; border-radius: 6px; background: var(--bg-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.dropdown a .dd-icon svg { width: 16px; height: 16px; stroke: var(--primary); fill: none; stroke-width: 2; }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-phone { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-m); }
.nav-phone svg { width: 15px; height: 15px; stroke: var(--accent); fill: none; stroke-width: 2; }
.nav-phone strong { color: var(--primary); }

/* ── Language Switcher ─── */
.lang-switch {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: auto; height: 34px; padding: 0 10px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  font-size: 12px; font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.lang-switch:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.lang-current { display: inline-flex; align-items: center; }
.lang-caret { transition: transform var(--transition); }
.lang-switch:hover .lang-caret { transform: translateY(1px); }
.lang-switch-current { letter-spacing: .5px; }
.lang-flag { width: 20px; height: 14px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }

/* Language dropdown menu */
.lang-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  margin: 0; padding: 6px; list-style: none;
  min-width: 158px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(11,61,110,.18);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
  z-index: 1200;
}
.lang-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu li { margin: 0; }
.lang-menu li button {
  display: flex; align-items: center; gap: 9px;
  width: 100%; padding: 9px 10px;
  border: none; background: transparent; cursor: pointer;
  font-size: 14px; color: var(--text); border-radius: 7px;
  font-family: inherit; text-align: left;
}
.lang-menu li button:hover { background: #f1f5f9; }
.lang-menu li button.active { background: #eaf2fb; color: var(--primary); font-weight: 700; }
.lang-menu li img { width: 20px; height: 14px; border-radius: 2px; flex: none; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; }
.hamburger span { display: block; width: 24px; height: 2.5px; background: var(--primary); border-radius: 2px; transition: all var(--transition); }

/* ── Hero Banner (Slider) ───────────────────────── */
#hero {
  position: relative; overflow: hidden;
  height: 580px;
  background: var(--bg-dark);
}
.hero-slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity .8s ease;
  display: flex; align-items: center;
}
.hero-slide.active { opacity: 1; z-index: 2; }
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
}
.hero-bg img {
  max-height: 100%;
  width: auto;
  max-width: 100%;
  position: absolute;
  right: 3%;
  top: 50%;
  transform: translateY(-50%);
  object-fit: contain;
  outline: none;
  border: none;
  box-shadow: none;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(6,30,56,.85) 0%, rgba(6,30,56,.45) 60%, transparent 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  max-width: 620px;
}
.hero-tag-badge {
  display: inline-block;
  background: var(--accent);
  color: #fff; font-size: 11px; font-weight: 700;
  padding: 4px 12px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: .8px;
  margin-bottom: 18px;
}
.hero-title {
  font-size: clamp(28px, 4.5vw, 52px);
  font-weight: 900; color: #fff;
  line-height: 1.12; margin-bottom: 16px;
}
.hero-title em { color: var(--accent); font-style: normal; }
.hero-desc { font-size: 16px; color: rgba(255,255,255,.75); margin-bottom: 32px; line-height: 1.7; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
/* Hero controls */
.hero-dots {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 10;
}
.hero-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,.4); border: none; cursor: pointer;
  transition: all var(--transition);
}
.hero-dot.active { background: var(--accent); width: 24px; border-radius: 4px; }
.hero-arrows {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 100%; display: flex; justify-content: space-between;
  padding: 0 16px; z-index: 10; pointer-events: none;
}
.hero-arrow {
  pointer-events: all;
  width: 44px; height: 44px;
  background: rgba(255,255,255,.15); backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all var(--transition); color: #fff;
}
.hero-arrow:hover { background: var(--accent); border-color: var(--accent); }
.hero-arrow svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2.5; }

/* ── Stats Bar ──────────────────────────────────── */
#stats-bar {
  background: var(--primary);
  padding: 0;
}
.stats-inner {
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.stat-item {
  display: flex; align-items: center; gap: 16px;
  padding: 28px 24px;
  border-right: 1px solid rgba(255,255,255,.1);
  transition: background var(--transition);
}
.stat-item:last-child { border-right: none; }
.stat-item:hover { background: rgba(255,255,255,.05); }
.stat-icon { width: 48px; height: 48px; background: rgba(240,165,0,.15); border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.stat-icon svg { width: 24px; height: 24px; stroke: var(--accent); fill: none; stroke-width: 2; }
.stat-num { font-size: 28px; font-weight: 800; color: #fff; line-height: 1; }
.stat-num sup { font-size: 14px; }
.stat-label { font-size: 12.5px; color: rgba(255,255,255,.6); margin-top: 3px; }

/* ── About Intro ────────────────────────────────── */
#about-intro { padding: 90px 0; background: #fff; }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center;
}
.about-visual { position: relative; }
.about-img-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: linear-gradient(135deg, #c8d8ea 0%, #8aaec8 100%);
  aspect-ratio: 4/3;
  display: flex; align-items: center; justify-content: center;
}
.about-img-badge {
  position: absolute; bottom: -20px; right: -20px;
  background: var(--accent); color: #fff;
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(240,165,0,.4);
}
.about-img-badge .big { font-size: 36px; font-weight: 900; line-height: 1; }
.about-img-badge .small { font-size: 12px; font-weight: 600; margin-top: 4px; opacity: .9; }
.about-text .section-title { text-align: left; }
.about-text .section-desc { text-align: left; margin: 0 0 24px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 32px; }
.about-feat {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 14px; background: var(--bg-light); border-radius: var(--radius);
}
.feat-icon { width: 36px; height: 36px; background: var(--primary); border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.feat-icon svg { width: 18px; height: 18px; stroke: #fff; fill: none; stroke-width: 2; }
.feat-title { font-size: 13px; font-weight: 700; color: var(--primary); margin-bottom: 2px; }
.feat-desc { font-size: 12px; color: var(--text-m); }
.about-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Products Section ───────────────────────────── */
#products { padding: 90px 0; background: var(--bg-light); }
.products-tabs {
  display: flex; gap: 8px; flex-wrap: wrap;
  justify-content: center; margin-bottom: 48px;
}
.prod-tab {
  padding: 9px 22px; border-radius: 24px;
  font-size: 13.5px; font-weight: 600;
  color: var(--text-m); background: #fff;
  border: 2px solid var(--border);
  cursor: pointer; transition: all var(--transition);
}
.prod-tab.active, .prod-tab:hover {
  background: var(--primary); color: #fff; border-color: var(--primary);
}
.products-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(11,61,110,.06);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(11,61,110,.14); }
.prod-img {
  position: relative;
  height: 220px;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.prod-img svg { width: 100%; height: 100%; }
.prod-badge {
  position: absolute; top: 14px; left: 14px;
  background: var(--primary); color: #fff;
  font-size: 10.5px; font-weight: 700;
  padding: 4px 10px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: .5px;
}
.prod-badge.hot { background: #e53e3e; }
.prod-badge.new { background: #38a169; }
.prod-actions {
  position: absolute; top: 14px; right: 14px;
  display: flex; flex-direction: column; gap: 8px;
  opacity: 0; transform: translateX(8px);
  transition: all var(--transition);
}
.product-card:hover .prod-actions { opacity: 1; transform: none; }
.prod-action-btn {
  width: 34px; height: 34px; border-radius: 50%;
  background: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,.12);
  cursor: pointer; transition: all var(--transition);
  border: none;
}
.prod-action-btn:hover { background: var(--accent); }
.prod-action-btn:hover svg { stroke: #fff; }
.prod-action-btn svg { width: 15px; height: 15px; stroke: var(--text); fill: none; stroke-width: 2; }
.prod-info { padding: 20px 22px; }
.prod-cat { font-size: 11px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: .8px; margin-bottom: 6px; }
.prod-name { font-size: 16.5px; font-weight: 700; color: var(--primary); margin-bottom: 8px; line-height: 1.3; }
.prod-desc { font-size: 13px; color: var(--text-m); margin-bottom: 14px; line-height: 1.6; }
.prod-specs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.spec-chip { font-size: 11px; background: var(--bg-light); color: var(--text); padding: 4px 10px; border-radius: 12px; border: 1px solid var(--border); }
.prod-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; border-top: 1px solid var(--border); }
.prod-link { font-size: 13px; font-weight: 600; color: var(--primary); display: flex; align-items: center; gap: 5px; transition: gap var(--transition); }
.prod-link:hover { gap: 10px; color: var(--accent); }
.prod-link svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2.5; }
.prod-inquiry { font-size: 12px; font-weight: 600; color: var(--accent); cursor: pointer; border: 1px solid var(--accent); padding: 5px 12px; border-radius: 4px; transition: all var(--transition); }
.prod-inquiry:hover { background: var(--accent); color: #fff; }

/* ── Why Choose Us ──────────────────────────────── */
#why-us { padding: 90px 0; background: var(--bg-dark); position: relative; overflow: hidden; }
.why-bg-circles { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.why-bg-circles span {
  position: absolute; border-radius: 50%;
  background: radial-gradient(circle, rgba(240,165,0,.08) 0%, transparent 70%);
}
.why-bg-circles span:nth-child(1) { width: 600px; height: 600px; top: -200px; right: -100px; }
.why-bg-circles span:nth-child(2) { width: 400px; height: 400px; bottom: -100px; left: 200px; }
.why-inner { position: relative; z-index: 2; }
.why-inner .section-title { color: #fff; }
.why-inner .section-desc { color: rgba(255,255,255,.6); }
.why-inner .section-tag { color: var(--accent); }
.why-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.why-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.why-card:hover {
  background: rgba(255,255,255,.09);
  border-color: var(--accent);
  transform: translateY(-4px);
}
.why-icon {
  width: 52px; height: 52px;
  background: rgba(240,165,0,.15);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.why-icon svg { width: 26px; height: 26px; stroke: var(--accent); fill: none; stroke-width: 1.8; }
.why-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.why-desc { font-size: 13.5px; color: rgba(255,255,255,.6); line-height: 1.7; }

/* ── Industry Applications ───────────────────────── */
#industries { padding: 90px 0; background: #fff; }
.industry-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.industry-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  height: 220px; cursor: pointer;
  transition: transform var(--transition);
}
.industry-card:hover { transform: scale(1.02); }
.ind-bg { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.ind-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(6,30,56,.85) 100%);
}
.ind-content { position: absolute; bottom: 0; left: 0; right: 0; padding: 20px 18px; }
.ind-icon { width: 38px; height: 38px; background: var(--accent); border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 8px; }
.ind-icon svg { width: 20px; height: 20px; stroke: #fff; fill: none; stroke-width: 2; }
.ind-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 3px; }
.ind-sub { font-size: 12px; color: rgba(255,255,255,.7); }

/* ── Certifications ──────────────────────────────── */
#certifications { padding: 60px 0; background: var(--bg-light); border-top: 1px solid var(--border); }
.certs-inner { display: flex; align-items: center; gap: 60px; }
.certs-text { min-width: 280px; }
.certs-list { display: flex; flex-wrap: wrap; gap: 16px; flex: 1; }
.cert-card {
  background: #fff; border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 14px 20px;
  display: flex; align-items: center; gap: 12px;
  transition: box-shadow var(--transition);
}
.cert-card:hover { box-shadow: var(--shadow); }
.cert-badge { width: 44px; height: 44px; border-radius: 8px; background: var(--bg-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cert-badge svg { width: 22px; height: 22px; stroke: var(--primary); fill: none; stroke-width: 2; }
.cert-name { font-size: 13px; font-weight: 700; color: var(--primary); }
.cert-sub { font-size: 11.5px; color: var(--text-m); }

/* ── News ──────────────────────────────────────── */
#news { padding: 90px 0; background: #fff; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
  background: #fff; border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.news-img {
  height: 190px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.news-body { padding: 20px 22px; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.news-cat { font-size: 11px; font-weight: 700; background: var(--bg-light); color: var(--primary); padding: 3px 10px; border-radius: 12px; }
.news-date { font-size: 11.5px; color: var(--text-m); }
.news-title { font-size: 15.5px; font-weight: 700; color: var(--primary); margin-bottom: 8px; line-height: 1.4; }
.news-title:hover { color: var(--accent); }
.news-excerpt { font-size: 13px; color: var(--text-m); line-height: 1.6; margin-bottom: 14px; }
.news-link { font-size: 13px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 5px; }
.news-link svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2.5; }

/* ── Clients / Worldwide ────────────────────────── */
#clients { padding: 60px 0; background: var(--bg-dark); overflow: hidden; }
.clients-label { text-align: center; font-size: 12px; font-weight: 700; color: rgba(255,255,255,.5); text-transform: uppercase; letter-spacing: 1.2px; margin-bottom: 28px; }
.clients-scroll {
  display: flex; gap: 40px; align-items: center;
  animation: scroll-left 30s linear infinite;
  width: max-content;
}
.clients-scroll:hover { animation-play-state: paused; }
.client-logo {
  font-size: 14px; font-weight: 700;
  color: rgba(255,255,255,.4);
  white-space: nowrap;
  transition: color var(--transition);
  cursor: pointer;
}
.client-logo:hover { color: var(--accent); }
@keyframes scroll-left {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ── CTA Strip ──────────────────────────────────── */
#cta-strip {
  padding: 70px 0;
  background: linear-gradient(135deg, var(--primary) 0%, #1a5fa0 100%);
  position: relative; overflow: hidden;
}
.cta-strip-bg {
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(45deg, rgba(255,255,255,.02) 0, rgba(255,255,255,.02) 1px, transparent 1px, transparent 40px);
}
.cta-inner {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-text .cta-tag { font-size: 12px; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.cta-text h2 { font-size: clamp(22px,3vw,34px); font-weight: 800; color: #fff; margin-bottom: 10px; }
.cta-text p { font-size: 15px; color: rgba(255,255,255,.7); }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; flex-shrink: 0; }

/* ── Contact ────────────────────────────────────── */
#contact { padding: 90px 0; background: var(--bg-light); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 60px; align-items: start; }
.contact-info-side h3 { font-size: 22px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.contact-info-side p { font-size: 14px; color: var(--text-m); margin-bottom: 28px; }
.contact-items { display: flex; flex-direction: column; gap: 18px; margin-bottom: 32px; }
.contact-item { display: flex; align-items: flex-start; gap: 14px; }
.ci-icon { width: 44px; height: 44px; background: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ci-icon svg { width: 20px; height: 20px; stroke: #fff; fill: none; stroke-width: 2; }
.ci-label { font-size: 11.5px; color: var(--text-m); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 3px; }
.ci-val { font-size: 14.5px; color: var(--primary); font-weight: 600; }
/* Form */
.contact-form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.form-title { font-size: 20px; font-weight: 800; color: var(--primary); margin-bottom: 6px; }
.form-sub { font-size: 13.5px; color: var(--text-m); margin-bottom: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12.5px; font-weight: 600; color: var(--text); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .4px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px; font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(11,61,110,.08);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-span-2 { grid-column: span 2; }
.form-submit {
  width: 100%; padding: 14px;
  background: var(--primary); color: #fff;
  border: none; border-radius: var(--radius);
  font-size: 15px; font-weight: 700;
  cursor: pointer; letter-spacing: .3px;
  transition: all var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.form-submit:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(240,165,0,.4); }

/* ── Footer ─────────────────────────────────────── */
footer { background: #ffffff; color: #555; }
.footer-top { padding: 64px 0 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.footer-brand .logo-text { font-size: 24px; font-weight: 900; color: var(--text); }
.footer-brand p { font-size: 13.5px; margin-top: 16px; line-height: 1.7; max-width: 300px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
  width: 34px; height: 34px; border-radius: 8px;
  border: 1px solid rgba(0,0,0,.12);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.footer-social a:hover { background: var(--accent); border-color: var(--accent); }
.footer-social svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }
.footer-col h4 { font-size: 13px; font-weight: 700; color: var(--text); text-transform: uppercase; letter-spacing: .8px; margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: 13.5px; color: #666;
  display: flex; align-items: center; gap: 6px;
  transition: all var(--transition);
}
.footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
.footer-col ul li a::before { content: '›'; color: var(--accent); font-size: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(0,0,0,.08);
  padding: 20px 0;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; font-size: 13px;
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: #999; transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--accent); }

/* ── Back to Top ────────────────────────────────── */
#back-to-top {
  position: fixed; bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--primary); color: #fff;
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(11,61,110,.4);
  cursor: pointer; z-index: 900;
  opacity: 0; transform: translateY(12px);
  transition: all var(--transition);
  border: none;
}
#back-to-top.visible { opacity: 1; transform: none; }
#back-to-top:hover { background: var(--accent); }
#back-to-top svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2.5; }

/* ── Fade-in Animation ──────────────────────────── */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.visible { opacity: 1; transform: none; }

/* ── Product Detail Page ────────────────────────── */
.page-hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%);
  padding: 80px 0 60px;
  position: relative; overflow: hidden;
}
.page-hero-bg {
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(45deg, rgba(255,255,255,.02) 0, rgba(255,255,255,.02) 1px, transparent 1px, transparent 40px);
}
.page-hero-inner { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.5); margin-bottom: 16px; }
.breadcrumb a { color: rgba(255,255,255,.5); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: rgba(255,255,255,.3); }
.page-title { font-size: clamp(28px,4vw,44px); font-weight: 900; color: #fff; margin-bottom: 12px; }
.page-sub { font-size: 16px; color: rgba(255,255,255,.65); max-width: 600px; }
.detail-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: start; padding: 70px 0; }
.detail-img-wrap { position: relative; }
.detail-img-main {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); background: var(--bg-light);
  aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center;
}
.detail-thumbs { display: flex; gap: 10px; margin-top: 12px; }
.detail-thumb {
  width: 72px; height: 60px; border-radius: var(--radius);
  background: var(--bg-light); cursor: pointer;
  border: 2px solid transparent; transition: border-color var(--transition);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.detail-thumb.active { border-color: var(--primary); }
.detail-info h1 { font-size: 28px; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.detail-info .prod-cat { margin-bottom: 14px; }
.detail-info .desc { font-size: 15px; color: var(--text-m); line-height: 1.75; margin-bottom: 24px; }
.detail-highlights { background: var(--bg-light); border-radius: var(--radius-lg); padding: 20px 24px; margin-bottom: 24px; }
.detail-highlights h4 { font-size: 13.5px; font-weight: 700; color: var(--primary); margin-bottom: 14px; text-transform: uppercase; letter-spacing: .5px; }
.highlight-list { display: flex; flex-direction: column; gap: 10px; }
.hl-item { display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: var(--text); }
.hl-item svg { width: 16px; height: 16px; stroke: #38a169; fill: none; stroke-width: 2.5; flex-shrink: 0; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.spec-table th { background: var(--primary); color: #fff; padding: 11px 14px; text-align: left; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; }
.spec-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
.spec-table tr:nth-child(even) td { background: var(--bg-light); }
.spec-table td:first-child { font-weight: 600; color: var(--primary); }
.detail-cta { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 1100px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-img-badge { bottom: 12px; right: 12px; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .industry-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-bottom: 1px solid rgba(255,255,255,.08); }
  .certs-inner { flex-direction: column; }
  .detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  #hero { height: auto; min-height: 480px; padding: 100px 0 60px; }
  .hero-content { max-width: 100%; }
  .nav-menu { display: none; }
  .hamburger { display: flex; }
  .products-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-span-2 { grid-column: span 1; }
}
@media (max-width: 520px) {
  .news-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; }
  .top-bar-right { display: none; }
}