/* ============================================================
   ACCURATE TUBE INDUSTRIES — style.css
   Light Blue / White Professional Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
  --blue-900:   #0d2137;
  --blue-800:   #1a3a5c;
  --blue-700:   #1e4d7b;
  --blue-600:   #1e6eb5;
  --blue-500:   #2183d2;
  --blue-400:   #3b9de0;
  --blue-300:   #6db8ec;
  --blue-200:   #a8d5f5;
  --blue-100:   #d6edf9;
  --blue-50:    #eef7fd;
  --blue-30:    #f4fafd;
  --white:      #ffffff;
  --gray-900:   #1a202c;
  --gray-700:   #374151;
  --gray-500:   #6b7280;
  --gray-400:   #9ca3af;
  --gray-200:   #e5e7eb;
  --gray-100:   #f3f4f6;
  --gray-50:    #f9fafb;
  --border:     #d1e8f5;
  --border-mid: #b8d8ef;
  --text-dark:  #1a3a5c;
  --text-body:  #374151;
  --text-muted: #6b7280;
  --shadow-sm:  0 1px 4px rgba(30,78,123,0.08);
  --shadow-md:  0 4px 16px rgba(30,78,123,0.12);
  --shadow-lg:  0 8px 32px rgba(30,78,123,0.15);
  --shadow-xl:  0 16px 48px rgba(30,78,123,0.18);
  --radius-sm:  4px;
  --radius:     8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --transition: 0.25s ease;
  --font-head:  'Poppins', sans-serif;
  --font-body:  'Inter', sans-serif;
  --nav-h:      68px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--white);
  color: var(--text-body);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
h1,h2,h3,h4,h5 { font-family: var(--font-head); line-height: 1.25; color: var(--text-dark); }
button { font-family: var(--font-body); cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: var(--font-body); }

/* --- Layout --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section    { padding: 72px 0; }
.section-sm { padding: 48px 0; }
.bg-white   { background: var(--white); }
.bg-light   { background: var(--blue-30); }
.bg-blue50  { background: var(--blue-50); }
.text-center { text-align: center; }

/* --- Section Labels --- */
.label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-600);
  background: var(--blue-100);
  border: 1px solid var(--blue-200);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: var(--blue-900);
  margin-bottom: 12px;
  line-height: 1.2;
}
.section-title span { color: var(--blue-600); }
.section-sub {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.section-sub.center { margin: 0 auto 40px; }
.divider {
  width: 48px; height: 3px;
  background: var(--blue-500);
  border-radius: 2px;
  margin-bottom: 24px;
}
.divider.center { margin: 0 auto 24px; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
}
.btn-primary {
  background: var(--blue-600);
  color: var(--white);
  border-color: var(--blue-600);
}
.btn-primary:hover {
  background: var(--blue-700);
  border-color: var(--blue-700);
  box-shadow: 0 4px 16px rgba(30,110,181,0.35);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--blue-700);
  border-color: var(--blue-500);
}
.btn-outline:hover {
  background: var(--blue-600);
  color: var(--white);
  transform: translateY(-1px);
}
.btn-white {
  background: var(--white);
  color: var(--blue-700);
  border-color: var(--white);
}
.btn-white:hover {
  background: var(--blue-50);
  transform: translateY(-1px);
}
.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.7);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
}
.btn-whatsapp {
  background: #25d366;
  color: var(--white);
  border-color: #25d366;
}
.btn-whatsapp:hover {
  background: #1ebe5d;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,211,102,0.35);
}
.btn-sm  { padding: 9px 20px; font-size: 0.83rem; }
.btn-lg  { padding: 15px 36px; font-size: 0.97rem; }
.btn-full { width: 100%; }

/* ============================================================
   HEADER
   ============================================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 2000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  width: 100vw;
}
#header.scrolled {
  box-shadow: 0 2px 20px rgba(30,78,123,0.12);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
  gap: 16px;
}
/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-mark {
  width: 70px; height: 40px;
  /* background: var(--blue-600); */
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head);
  font-size: 1rem; font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
  flex-shrink: 0;
}
.logo-info { display: flex; flex-direction: column; line-height: 1.15; }
.logo-name {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--blue-900);
  letter-spacing: 0.01em;
}
.logo-tag {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-500);
}
/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  font-size: 0.87rem;
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}
.nav-link:hover, .nav-link.active {
  color: var(--blue-600);
  background: var(--blue-50);
}
/* CTA */
.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-phone {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-700);
  padding: 9px 16px;
  background: var(--blue-50);
  border: 1px solid var(--blue-200);
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-phone:hover {
  background: var(--blue-100);
  color: var(--blue-800);
}
.nav-phone svg { width: 14px; height: 14px; flex-shrink: 0; }
/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 9px 8px;
  background: var(--white);
  border: 1.5px solid var(--blue-300);
  border-radius: var(--radius-sm);
  cursor: pointer;
  z-index: 1100;
  position: relative;
  flex-shrink: 0;
  min-width: 40px;
  align-items: center;
  justify-content: center;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--blue-800);
  border-radius: 2px;
  transition: var(--transition);
  pointer-events: none;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
@media(max-width: 960px) {
  #header { z-index: 2000; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 24px;
    border-bottom: 2px solid var(--blue-200);
    box-shadow: 0 8px 24px rgba(30,78,123,0.15);
    z-index: 1999;
    /* Hidden by default - slide up out of view */
    transform: translateY(-120%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    visibility: hidden;
  }
  .nav-links.open {
    transform: translateY(0);
    pointer-events: auto;
    visibility: visible;
  }
  .nav-link {
    padding: 14px 24px;
    border-radius: 0;
    font-size: 0.97rem;
    font-weight: 500;
    color: var(--text-body);
    border-bottom: 1px solid var(--blue-50);
    display: block;
  }
  .nav-link:hover, .nav-link.active {
    background: var(--blue-50);
    color: var(--blue-600);
    padding-left: 30px;
  }
  .nav-right .nav-phone { display: none; }
  .hamburger { display: flex; }
}

/* Ensure hero overflow:hidden doesn't clip the fixed nav dropdown */
.hero { overflow: visible; }
.hero .hero-pattern,
.hero .hero-glow { overflow: hidden; }

@media(max-width: 520px) {
  .logo-info .logo-tag { display: block; }
}
@media(max-width: 400px) {
  .logo-info { display: block; }
  .logo-mark { width: 50px; height: 40px; font-size: 0.88rem; }
  .nav-wrap { padding: 0 12px; gap: 8px; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-top: var(--nav-h);
  background: linear-gradient(135deg, var(--blue-800) 0%, var(--blue-700) 40%, var(--blue-600) 100%);
  position: relative;
  overflow: visible;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-pattern {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  border-radius: inherit;
}
.hero-glow {
  position: absolute;
  top: -30%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.07), transparent 70%);
  pointer-events: none;
  overflow: hidden;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding: 60px 20px 80px;
  margin: 0 auto;
  width: 100%;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue-200);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.hero-tag::before {
  content: '';
  width: 6px; height: 6px;
  background: #6eddaf;
  border-radius: 50%;
  animation: blink 2s infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }
.hero-h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 8px;
  font-family: var(--font-head);
}
.hero-h1 em { font-style: normal; color: var(--blue-200); }
.hero-tagline {
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 20px;
}
.hero-desc {
  font-size: clamp(0.9rem, 1.8vw, 1.05rem);
  color: rgba(255,255,255,0.82);
  max-width: 580px;
  line-height: 1.75;
  margin-bottom: 36px;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 52px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 560px;
}
.hero-stat {
  background: rgba(255,255,255,0.06);
  padding: 16px 12px;
  text-align: center;
}
.hero-stat-n {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 4px;
}
.hero-stat-l {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue-200);
}
/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.5);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-scroll-line {
  width: 1px; height: 32px;
  background: linear-gradient(rgba(255,255,255,0.5), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine { 0%,100%{opacity:0;transform:scaleY(0);transform-origin:top} 50%{opacity:1;transform:scaleY(1)} }

/* ============================================================
   TICKER
   ============================================================ */
.ticker {
  background: var(--blue-600);
  padding: 11px 0;
  overflow: hidden;
  border-top: 1px solid var(--blue-500);
  border-bottom: 1px solid var(--blue-500);
}
.ticker-wrap {
  display: flex;
  white-space: nowrap;
  animation: tickerMove 28s linear infinite;
}
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--white);
  padding: 0 36px;
}
.ticker-dot {
  width: 4px; height: 4px;
  background: var(--blue-200);
  border-radius: 50%;
  flex-shrink: 0;
}
@keyframes tickerMove { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }

/* ============================================================
   ABOUT STRIP
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-img-block {
  position: relative;
}
.about-img-main {
  background: linear-gradient(135deg, var(--blue-100), var(--blue-50));
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 360px;
  justify-content: center;
}
.pipe-demo { display: flex; flex-direction: column; gap: 14px; }
.pipe-row-d { display: flex; align-items: center; gap: 12px; }
.pipe-lbl { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--blue-600); width: 72px; flex-shrink: 0; text-align: right; }
.p-round { width: 52px; height: 52px; border-radius: 50%; border: 4px solid var(--blue-400); background: linear-gradient(135deg, var(--blue-200), var(--blue-100)); flex-shrink: 0; }
.p-bar { flex: 1; height: 24px; border-radius: 3px; background: linear-gradient(90deg, var(--blue-400), var(--blue-300)); opacity: 0.7; }
.p-sq { width: 44px; height: 44px; border: 3px solid var(--blue-500); background: linear-gradient(135deg, var(--blue-200), var(--blue-100)); flex-shrink: 0; border-radius: 4px; }
.p-rect { flex: 1; height: 30px; border-radius: 3px; background: linear-gradient(90deg, var(--blue-500), var(--blue-300)); opacity: 0.65; }
.about-badge {
  position: absolute;
  bottom: -16px; right: -16px;
  background: var(--blue-600);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.about-badge-n { font-family: var(--font-head); font-size: 1.8rem; font-weight: 800; line-height: 1; }
.about-badge-l { font-size: 0.72rem; font-weight: 500; opacity: 0.85; margin-top: 3px; }
.about-feats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 28px;
}
.about-feat {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--blue-50);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.feat-icon {
  width: 32px; height: 32px;
  background: var(--blue-100);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.feat-icon svg { width: 15px; height: 15px; color: var(--blue-600); }
.feat-t strong { display: block; font-size: 0.83rem; font-weight: 700; color: var(--blue-900); margin-bottom: 2px; }
.feat-t span   { font-size: 0.76rem; color: var(--text-muted); }

/* ============================================================
   PRODUCT CARDS
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.prod-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.prod-card:hover {
  border-color: var(--blue-300);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.prod-card-top {
  background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.2rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.prod-card-badge {
  position: absolute;
  top: 10px; left: 10px;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-700);
  background: var(--white);
  border: 1px solid var(--blue-200);
  padding: 3px 8px;
  border-radius: 20px;
}
.prod-card-body {
  padding: 18px 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.prod-card-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue-900);
  margin-bottom: 8px;
}
.prod-card-desc {
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 14px;
}
.prod-card-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--blue-600);
  transition: var(--transition);
}
.prod-card-link svg { width: 13px; height: 13px; transition: transform var(--transition); }
.prod-card-link:hover { color: var(--blue-800); }
.prod-card-link:hover svg { transform: translateX(3px); }

/* ============================================================
   WHY CHOOSE US
   ============================================================ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.why-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.why-card:hover {
  border-color: var(--blue-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.why-icon {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  background: var(--blue-50);
  border: 1px solid var(--blue-200);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.why-icon svg { width: 24px; height: 24px; color: var(--blue-600); }
.why-title { font-size: 0.97rem; font-weight: 700; color: var(--blue-900); margin-bottom: 8px; }
.why-desc  { font-size: 0.83rem; color: var(--text-muted); line-height: 1.65; }

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  background: var(--blue-700);
  padding: 48px 0;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  text-align: center;
  /* divide: 1px solid rgba(255,255,255,0.12); */
}
.stat-item {
  padding: 16px 12px;
  border-right: 1px solid rgba(255,255,255,0.12);
}
.stat-item:last-child { border-right: none; }
.stat-n {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-l {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--blue-200);
}

/* ============================================================
   INDUSTRIES
   ============================================================ */
.ind-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.ind-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 18px;
  text-align: center;
  transition: var(--transition);
}
.ind-card:hover {
  border-color: var(--blue-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.ind-icon { font-size: 2.4rem; margin-bottom: 10px; }
.ind-name { font-size: 0.92rem; font-weight: 700; color: var(--blue-900); margin-bottom: 5px; }
.ind-desc { font-size: 0.79rem; color: var(--text-muted); line-height: 1.55; }

/* ============================================================
   CAPABILITIES / MFG
   ============================================================ */
.mfg-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.mfg-steps { display: flex; flex-direction: column; gap: 16px; }
.mfg-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 3px solid var(--blue-500);
  border-radius: var(--radius);
  padding: 16px 18px;
  transition: var(--transition);
}
.mfg-step:hover { border-left-color: var(--blue-700); box-shadow: var(--shadow-sm); }
.mfg-step-num {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blue-200);
  line-height: 1;
  min-width: 32px;
}
.mfg-step-body strong {
  display: block;
  font-size: 0.9rem; font-weight: 700;
  color: var(--blue-900); margin-bottom: 3px;
}
.mfg-step-body span { font-size: 0.82rem; color: var(--text-muted); }
.mfg-panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.mfg-panel-title {
  font-size: 1.1rem; font-weight: 700; color: var(--blue-900); margin-bottom: 6px;
}
.mfg-panel-sub { font-size: 0.83rem; color: var(--text-muted); margin-bottom: 24px; }
.mfg-bar-row { margin-bottom: 18px; }
.mfg-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-body);
  margin-bottom: 7px;
}
.mfg-bar-label span { color: var(--blue-600); }
.bar-track {
  height: 7px;
  background: var(--blue-100);
  border-radius: 4px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
  border-radius: 4px;
  width: 0;
  transition: width 1.4s cubic-bezier(.4,0,.2,1);
}
.mfg-panel-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.mini-stat { text-align: center; }
.mini-stat-n { font-family: var(--font-head); font-size: 1.6rem; font-weight: 800; color: var(--blue-600); }
.mini-stat-l { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-muted); }

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.cert-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 16px;
  text-align: center;
  transition: var(--transition);
}
.cert-card:hover {
  border-color: var(--blue-400);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.cert-icon {
  width: 56px; height: 56px;
  margin: 0 auto 12px;
  background: var(--blue-50);
  border: 2px solid var(--blue-200);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
}
.cert-name { font-size: 0.92rem; font-weight: 700; color: var(--blue-900); margin-bottom: 6px; }
.cert-desc { font-size: 0.78rem; color: var(--text-muted); line-height: 1.55; }

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-band {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-600));
  padding: 64px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.cta-band .section-title { color: var(--white); position: relative; z-index: 1; }
.cta-band p { color: rgba(255,255,255,0.8); max-width: 520px; margin: 0 auto 32px; position: relative; z-index: 1; font-size: 0.97rem; }
.cta-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  position: relative;
  z-index: 1;
}

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: var(--blue-900);
  color: rgba(255,255,255,0.8);
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.6fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
}
/* .footer-logo { background: var(--blue-500); } */
.footer-logo .logo-name { color: var(--white); }
.footer-logo .logo-tag  { color: var(--blue-300); }
.footer-about { font-size: 0.85rem; color: rgba(255,255,255,0.65); line-height: 1.75; margin-bottom: 20px; }
.footer-certificates{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:12px;
    margin-top:20px;
}
.footer-certificates img{
    width:100%;
    height:230px;
    object-fit:cover;
    border-radius:4px;
    border:1px solid rgba(255,255,255,0.15);
    background:#fff;
    cursor:pointer;
    transition:.3s ease;
}
.footer-certificates img:hover{
    transform:translateY(-3px);
}
.f-social {
  width: 34px; height: 34px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.f-social:hover { background: var(--blue-600); border-color: var(--blue-500); }
.f-social svg { width: 15px; height: 15px; color: rgba(255,255,255,0.7); }
.footer-col-head {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a {
  font-size: 0.84rem;
  color: rgba(255,255,255,0.65);
  transition: var(--transition);
  display: flex; align-items: center; gap: 6px;
}
.footer-links a::before { content: '›'; color: var(--blue-400); font-size: 1rem; }
.footer-links a:hover { color: var(--white); padding-left: 3px; }
.footer-contact-row { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; }
.fc-icon {
  width: 28px; height: 28px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.fc-icon svg { width: 13px; height: 13px; color: var(--blue-300); }
.fc-text { font-size: 0.82rem; color: rgba(255,255,255,0.65); line-height: 1.55; }
.fc-text strong { display: block; color: rgba(255,255,255,0.85); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 2px; }
.fc-text a { color: rgba(255,255,255,0.65); transition: var(--transition); }
.fc-text a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.5); }
.footer-bottom strong { color: rgba(255,255,255,0.75); }
.f-bottom-links { display: flex; gap: 18px; }
.f-bottom-links a { font-size: 0.8rem; color: rgba(255,255,255,0.5); transition: var(--transition); }
.f-bottom-links a:hover { color: var(--white); }

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-600));
  padding: calc(var(--nav-h) + 20px) 0 48px;
  padding-bottom: 40px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
}
.page-hero-inner { position: relative; z-index: 1; }
.breadcrumb {
  display: flex; align-items: center; gap: 7px;
  font-size: 0.79rem; font-weight: 500;
  letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--blue-200);
  margin-bottom: 14px;
}
.breadcrumb a { color: var(--blue-200); transition: var(--transition); }
.breadcrumb a:hover { color: var(--white); }
.page-h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}
.page-sub { font-size: 1rem; color: rgba(255,255,255,0.78); max-width: 800px; }

/* ============================================================
   PRODUCTS PAGE
   ============================================================ */
.prod-nav {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: var(--nav-h);
  z-index: 100;
  padding: 0;
}
.prod-nav-inner {
  display: flex;
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.prod-nav-inner::-webkit-scrollbar { display: none; }
.prod-nav-link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 14px 16px;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  flex-shrink: 0;
}
.prod-nav-link:hover { color: var(--blue-600); }
.prod-nav-link.active { color: var(--blue-600); border-bottom-color: var(--blue-600); }

.prod-section {
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}
.prod-section:last-child { border-bottom: none; }
.prod-detail-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}
.prod-detail-grid.rev { grid-template-columns: 1fr 280px; }
.prod-detail-grid.rev .prod-visual { order: 2; }
.prod-visual {
  background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px 20px;
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 12px;
  min-height: 240px;
  position: sticky;
  top: calc(var(--nav-h) + 52px);
}
.prod-visual-icon { font-size: 5rem; text-align: center; }
.spec-tags { display: flex; flex-direction: column; gap: 6px; width: 100%; }
.spec-tag {
  font-size: 0.73rem; font-weight: 600;
  color: var(--blue-700);
  background: var(--white);
  border: 1px solid var(--blue-200);
  border-radius: 4px;
  padding: 5px 10px;
  text-align: center;
}
.prod-name { font-size: 1.8rem; font-weight: 800; color: var(--blue-900); margin-bottom: 10px; }
.prod-desc { font-size: 0.9rem; color: var(--text-muted); line-height: 1.75; margin-bottom: 24px; }
.tab-row { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tab-btn {
  font-size: 0.84rem; font-weight: 600;
  color: var(--text-muted);
  padding: 10px 16px;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  cursor: pointer;
  background: none;
  border-top: none; border-left: none; border-right: none;
}
.tab-btn.active { color: var(--blue-600); border-bottom-color: var(--blue-600); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.tab-list { display: flex; flex-direction: column; gap: 8px; }
.tab-list li {
  display: flex; align-items: flex-start; gap: 9px;
  font-size: 0.88rem; color: var(--text-body);
}
.tab-list li::before { content: '›'; color: var(--blue-500); flex-shrink: 0; font-size: 1.1em; margin-top: 1px; }
.sizes-tbl { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.sizes-tbl th {
  background: var(--blue-50); font-weight: 700;
  font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--blue-700); padding: 9px 12px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.sizes-tbl td { padding: 8px 12px; border-bottom: 1px solid var(--gray-100); color: var(--text-body); }
.sizes-tbl tr:hover td { background: var(--blue-30); }
.prod-btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }

/* ============================================================
   INFRASTRUCTURE
   ============================================================ */
.infra-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.infra-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.infra-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.infra-top {
  height: 120px;
  background: linear-gradient(135deg, var(--blue-100), var(--blue-50));
  display: flex; align-items: center; justify-content: center;
  font-size: 2.6rem;
  border-bottom: 1px solid var(--border);
}
.infra-body { padding: 16px; }
.infra-name { font-size: 0.95rem; font-weight: 700; color: var(--blue-900); margin-bottom: 6px; }
.infra-desc { font-size: 0.81rem; color: var(--text-muted); line-height: 1.6; }
.process-line { display: flex; flex-direction: column; gap: 0; position: relative; }
.process-line::before {
  content: ''; position: absolute;
  left: 22px; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(to bottom, var(--blue-300), transparent);
}
.proc-step { display: flex; gap: 20px; padding-bottom: 28px; position: relative; }
.proc-step:last-child { padding-bottom: 0; }
.proc-num {
  width: 46px; height: 46px;
  background: var(--blue-600);
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-head);
  font-size: 1.1rem; font-weight: 800;
  flex-shrink: 0;
  position: relative; z-index: 1;
}
.proc-body { padding-top: 10px; }
.proc-body strong {
  display: block; font-size: 0.93rem; font-weight: 700;
  color: var(--blue-900); margin-bottom: 4px;
}
.proc-body p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.65; }

/* ============================================================
   QUALITY
   ============================================================ */
.qa-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.qa-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex; gap: 16px;
  transition: var(--transition);
}
.qa-card:hover { border-color: var(--blue-300); box-shadow: var(--shadow-sm); }
.qa-icon {
  width: 46px; height: 46px;
  background: var(--blue-50);
  border: 1px solid var(--blue-200);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.qa-body strong {
  display: block; font-size: 0.95rem; font-weight: 700;
  color: var(--blue-900); margin-bottom: 6px;
}
.qa-body p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.65; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; }
.form-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.form-box-title { font-size: 1.3rem; font-weight: 700; color: var(--blue-900); margin-bottom: 24px; }
.form-grp { margin-bottom: 16px; }
.form-lbl {
  display: block; font-size: 0.79rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--text-body); margin-bottom: 7px;
}
.form-ctrl {
  width: 100%;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 11px 14px;
  font-size: 0.9rem; color: var(--gray-900);
  transition: var(--transition); outline: none;
}
.form-ctrl::placeholder { color: var(--gray-400); }
.form-ctrl:focus {
  border-color: var(--blue-400);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(33,131,210,0.1);
}
select.form-ctrl { cursor: pointer; }
textarea.form-ctrl { resize: vertical; min-height: 110px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-success {
  display: none; align-items: center; gap: 10px;
  background: #f0fdf4; border: 1px solid #bbf7d0;
  border-radius: var(--radius); padding: 14px 16px;
  color: #166534; font-size: 0.88rem; font-weight: 600;
  margin-top: 14px;
}
.form-success.show { display: flex; }
.contact-cards { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: var(--transition);
}
.contact-card:hover { border-color: var(--blue-300); box-shadow: var(--shadow-sm); }
.cc-head {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 14px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.cc-icon {
  width: 40px; height: 40px;
  background: var(--blue-50);
  border: 1px solid var(--blue-200);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
}
.cc-icon svg { width: 18px; height: 18px; color: var(--blue-600); }
.cc-title { font-size: 0.95rem; font-weight: 700; color: var(--blue-900); }
.cc-sub   { font-size: 0.78rem; color: var(--text-muted); }
.cc-row { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 9px; }
.cc-dot { width: 5px; height: 5px; background: var(--blue-400); border-radius: 50%; flex-shrink: 0; margin-top: 7px; }
.cc-txt { font-size: 0.84rem; color: var(--text-body); line-height: 1.5; }
.cc-txt a { color: var(--blue-600); transition: var(--transition); }
.cc-txt a:hover { color: var(--blue-800); }
.map-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  height: 200px;
}
.map-frame iframe { width: 100%; height: 100%; border: none; display: block; }
/* css for error in contact form */
.field-error{
  display:block;
  color:#dc2626;
  font-size:13px;
  margin-top:5px;
  min-height:18px;
}

.input-error{
  border:1px solid #dc2626 !important;
}

#form-status{
  margin-bottom:15px;
  padding:12px 15px;
  border-radius:6px;
  display:none;
  font-size:14px;
  font-weight:500;
}

#form-status.success{
  display:block;
  background:#ecfdf5;
  color:#15803d;
  border:1px solid #bbf7d0;
}

#form-status.error{
  display:block;
  background:#fef2f2;
  color:#dc2626;
  border:1px solid #fecaca;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.val-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px 16px; text-align: center;
  transition: var(--transition);
}
.val-card:hover { border-color: var(--blue-300); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.val-icon { font-size: 2.2rem; margin-bottom: 10px; }
.val-name { font-size: 0.92rem; font-weight: 700; color: var(--blue-900); margin-bottom: 6px; }
.val-desc { font-size: 0.79rem; color: var(--text-muted); line-height: 1.6; }

/* ============================================================
   AOS / ANIMATE ON SCROLL
   ============================================================ */
[data-aos] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
[data-aos="fade-right"] { transform: translateX(-20px); }
[data-aos="fade-left"]  { transform: translateX(20px); }
[data-aos].aos-in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* Tablet */
@media(max-width: 1024px) {
  .footer-grid       { grid-template-columns: 1fr 1fr; }
  .about-grid        { grid-template-columns: 1fr; gap: 40px; }
  .mfg-layout        { grid-template-columns: 1fr; }
  .contact-layout    { grid-template-columns: 1fr; }
  .cert-grid         { grid-template-columns: repeat(2, 1fr); }
  .values-grid       { grid-template-columns: repeat(2, 1fr); }
  .stats-row         { grid-template-columns: repeat(2, 1fr); }
  .stat-item         { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); }
  .stat-item:nth-child(odd)  { border-right: 1px solid rgba(255,255,255,0.12); }
  .stat-item:nth-last-child(-n+2) { border-bottom: none; }
  .prod-detail-grid,
  .prod-detail-grid.rev { grid-template-columns: 1fr; }
  .prod-visual       { position: static; min-height: 180px; }
  .prod-detail-grid.rev .prod-visual { order: unset; }
}

/* Mobile landscape / small tablet */
@media(max-width: 768px) {
  .section  { padding: 52px 0; }
  .section-sm { padding: 36px 0; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid      { grid-template-columns: repeat(2, 1fr); }
  .ind-grid      { grid-template-columns: repeat(2, 1fr); }
  .infra-grid    { grid-template-columns: repeat(2, 1fr); }
  .qa-grid       { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .about-feats   { grid-template-columns: 1fr 1fr; }
  .hero-stats    { grid-template-columns: repeat(2, 1fr); max-width: 100%; }
}

/* Mobile portrait */
@media(max-width: 480px) {
  .container { padding: 0 16px; }
  .section   { padding: 44px 0; }
  .section-title { font-size: 1.5rem; }
  .hero-h1        { font-size: 1.9rem; }
  .hero-btns      { flex-direction: column; }
  .hero-btns .btn { width: 100%; }
  .hero-stats     { grid-template-columns: repeat(2, 1fr); }
  .products-grid  { grid-template-columns: 1fr; }
  .why-grid       { grid-template-columns: 1fr; }
  .ind-grid       { grid-template-columns: 1fr; }
  .infra-grid     { grid-template-columns: 1fr; }
  .cert-grid      { grid-template-columns: repeat(2, 1fr); }
  .values-grid    { grid-template-columns: 1fr 1fr; }
  .stats-row      { grid-template-columns: 1fr 1fr; }
  .about-feats    { grid-template-columns: 1fr; }
  .form-row-2     { grid-template-columns: 1fr; }
  .cta-btns       { flex-direction: column; align-items: stretch; }
  .cta-btns .btn  { width: 100%; }
  .prod-btns      { flex-direction: column; }
  .prod-btns .btn { width: 100%; }
  .footer-certificates{grid-template-columns:1fr;}
  .footer-certificates img{height: 442px}
  .hero-scroll    { display: none; }
  .about-badge    { display: none; }
}

/* Very small */
@media(max-width: 360px) {
  .cert-grid   { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .hero-stats  { grid-template-columns: 1fr 1fr; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--blue-300); border-radius: 3px; }

/* ============================================================
   INFRA / PROCESS LINE (used in infrastructure.html)
   ============================================================ */
.process-line { display:flex; flex-direction:column; gap:0; position:relative; }
.process-line::before { content:''; position:absolute; left:23px; top:0; bottom:0; width:2px; background:linear-gradient(to bottom, var(--blue-300), transparent); }
.proc-step { display:flex; gap:18px; padding-bottom:28px; position:relative; }
.proc-step:last-child { padding-bottom:0; }
.proc-num { width:46px; height:46px; background:var(--blue-600); color:white; border-radius:50%; display:flex; align-items:center; justify-content:center; font-family:var(--font-head); font-size:1.1rem; font-weight:800; flex-shrink:0; position:relative; z-index:1; }
.proc-body { padding-top:10px; }
.proc-body strong { display:block; font-size:.92rem; font-weight:700; color:var(--blue-900); margin-bottom:4px; }
.proc-body p { font-size:.82rem; color:var(--text-muted); line-height:1.65; }

/* Responsive fix for 2-col grid in infra process */
@media(max-width:768px) {
  .process-line { margin-bottom: 32px; }
}
@media(max-width:600px) {
  /* About grid responsive */
  .about-grid { grid-template-columns: 1fr !important; gap: 32px !important; }
  /* Contact layout */
  .contact-layout { grid-template-columns: 1fr !important; }
  /* Prod detail grid */
  .prod-detail-grid,
  .prod-detail-grid.rev { grid-template-columns: 1fr !important; direction: ltr !important; }
  .prod-detail-grid.rev .prod-visual { order: unset !important; }
  /* 2-col section grids */
  div[style*="grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; }
  div[style*="grid-template-columns: 1fr 1fr"] { grid-template-columns: 1fr !important; }
}
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;

    min-width: 260px;

    background: #fff;

    border-radius: 10px;

    box-shadow: 0 12px 30px rgba(0,0,0,.12);

    list-style: none;

    padding: 8px 0;

    margin-top: 10px;

    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);

    transition: all .25s ease;
    overflow-y: auto;
    height: 90vh;
    z-index: 9999;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: 12px 18px;
    color: #222;
    text-decoration: none;
    font-size: 15px;
}

.dropdown-menu li a:hover {
    background: #f4f8fc;
    color: #0f5ea8;
}
@media (max-width: 992px){

    .dropdown-menu{
        display: none;
        max-height: 0;
        overflow: hidden;

        position: static;
        width: 100%;
        background: transparent;
        box-shadow: none;

        padding-left: 15px;
        margin: 0;
    }

    .dropdown.open .dropdown-menu{
        display: block;
        max-height: 600px;
    }

    .dropdown-menu li{
        margin: 0;
    }

    .dropdown-menu li a{
        display: block;
        padding: 10px 0;
        font-size: 14px;
    }

    .dropdown-arrow{
        font-size: 10px;
        transition: .3s;
    }

    .dropdown.open .dropdown-arrow{
        transform: rotate(180deg);
    }
}
/* faq and seo sections */
/* ===========================
   SEO Content Section
=========================== */
.seo-section {
  padding: 60px 0;
}

.seo-card {
  background: #fff;
  border-radius: 12px;
  padding: 35px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.08);
  margin-bottom: 30px;
}

.seo-card h2 {
  font-size: 28px;
  margin-bottom: 18px;
  color: #0f172a;
}

.seo-card p {
  line-height: 1.8;
  color: #475569;
  margin-bottom: 16px;
}

.seo-card ul {
  margin-top: 15px;
  padding-left: 20px;
}

.seo-card li {
  margin-bottom: 10px;
  color: #475569;
}

.seo-card a {
  color: #0056b3;
  font-weight: 600;
  text-decoration: none;
}

.seo-card a:hover {
  text-decoration: underline;
}

/* ===========================
   FAQ Accordion
=========================== */
.faq-section {
  padding-bottom: 60px;
}

.faq-heading {
  text-align: center;
  margin-bottom: 30px;
}

.faq-heading h2 {
  font-size: 32px;
  color: #0f172a;
}

.faq-item {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  border: none;
  background: #fff;
  cursor: pointer;
  text-align: left;
  padding: 18px 20px;
  font-size: 17px;
  font-weight: 600;
  color: #0f172a;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question span {
  transition: 0.3s;
}

.faq-item.active .faq-question span {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer p {
  padding: 0 20px 20px;
  margin: 0;
  line-height: 1.7;
  color: #475569;
}

@media (max-width:768px) {

  .seo-card {
    padding: 24px;
  }

  .seo-card h2 {
    font-size: 24px;
  }
  .faq-heading h2 {
    font-size: 26px;
  }
}

/* ============================================================
   MOBILE OVERFLOW & HEADER FIX (index.html specific)
   ============================================================ */

/* Prevent horizontal scroll on ALL pages */
html, body {
  max-width: 100%;
  overflow-x: hidden;
}

/* Ensure header is always fixed/sticky on all pages */
#header {
  position: fixed !important;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 2000;
}

/* Fix hero glow from leaking beyond viewport */
.hero-glow {
  max-width: 100vw;
  overflow: hidden;
}

/* Fix for mobile: clamp overly wide elements */
@media (max-width: 480px) {
  .hero-inner {
    padding: 48px 16px 64px;
    max-width: 100%;
    box-sizing: border-box;
  }
  .hero-stats {
    width: 100%;
    max-width: 100%;
  }
  .hero-tag {
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    max-width: 100%;
    word-break: break-word;
  }
  .pipe-demo {
    max-width: 100%;
    overflow: hidden;
  }
  .about-img-main {
    max-width: 100%;
    overflow: hidden;
  }
  /* Ticker safe on mobile */
  .ticker {
    overflow: hidden;
    max-width: 100vw;
  }
  /* Prevent any section from overflowing */
  section, .section {
    max-width: 100vw;
    overflow-x: hidden;
  }
}

/* Breadcrumb schema display */
.breadcrumb-nav {
  padding: 10px 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.breadcrumb-nav ol {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
}
.breadcrumb-nav li + li::before {
  content: "›";
  margin-right: 4px;
  color: var(--gray-400);
}
.breadcrumb-nav a {
  color: var(--blue-600);
  text-decoration: none;
}
.breadcrumb-nav a:hover {
  text-decoration: underline;
}
.breadcrumb-nav [aria-current="page"] {
  color: var(--text-muted);
}
/* index video grid */
.video-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
    gap:30px;
    margin-top:50px;
}

.video-card{
    background:#fff;
    border-radius:14px;
    overflow:hidden;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
}

.video-card iframe{
    width:100%;
    aspect-ratio:16/9;
    border:none;
}

.video-card h3{
    padding:20px 20px 10px;
}

.video-card p{
    padding:0 20px 20px;
}

/* product link */
.faq-link {
  color: #007bff;      /* blue */
  text-decoration: underline;
}
/* hero tag css  */
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: start;
  margin-top: 15px;
  max-width: 100%;
}

/* tag style */
.hero-tags .spec-tag {
  display: inline-block;
  padding: 6px 12px;
  font-size: 13px;
  border-radius: 20px;
  background: #ffffff;
  color: #0b4aa2;
  border: 1px solid rgba(255,255,255,0.3);
  white-space: nowrap;
}

/* mobile fix */
@media (max-width: 768px) {
  .hero-tags {
    gap: 8px;
    justify-content: center;
  }

  .hero-tags .spec-tag {
    font-size: 12px;
    padding: 5px 10px;
    white-space: normal; /* allows break if needed */
    text-align: center;
  }
}

/* extra small screens */
@media (max-width: 480px) {
  .hero-tags {
    gap: 6px;
    justify-content: start;
  }
  .page-hero{
    padding-top: 5rem;
  }
  .hero-tags .spec-tag {
    font-size: 11px;
    padding: 4px 8px;
  }
}

/* technical comparison section */
.comparison-section {
    padding: 70px 0;
    background: linear-gradient(180deg, #ffffff 0%, var(--blue-30) 100%);
}

.comparison-section h2 {
    text-align: center;
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: var(--blue-900);
    font-weight: 700;
    margin-bottom: 40px;
    position: relative;
}

.comparison-section h2::after {
    content: "";
    width: 70px;
    height: 4px;
    background: var(--blue-500);
    display: block;
    margin: 15px auto 0;
    border-radius: 50px;
}

/* Card */

.comparison-section .sizes-tbl {
    width: 100%;
    border-collapse: collapse;
    overflow: hidden;
    border-radius: 14px;
    background: #fff;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

/* Header */

.comparison-section thead {
    background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
    color: #fff;
}

.comparison-section thead th {
    padding: 18px 22px;
    text-align: left;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: .4px;
    position: sticky;
    top: 0;
    z-index: 2;
}

/* Body */
.comparison-section tbody tr {
    transition: .3s ease;
}
.comparison-section tbody tr:nth-child(even) {
    background: var(--blue-30);
}
.comparison-section tbody tr:hover {
    background: rgba(33,131,210,.08);
    transform: scale(1.01);
}
.comparison-section tbody td {
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
    font-size: .97rem;
    color: var(--text-body);
    transition: .25s;
}
/* First Column */
.comparison-section tbody td:first-child {
    width: 35%;
    font-weight: 700;
    color: var(--blue-900);
}
/* Last Row */
.comparison-section tbody tr:last-child td {
    border-bottom: none;
}
/* Smooth Hover */
.comparison-section tbody tr:hover td:first-child {
    color: var(--blue-600);
}
/* Rounded Corners */
.comparison-section thead th:first-child {
    border-top-left-radius: 14px;
}
.comparison-section thead th:last-child {
    border-top-right-radius: 14px;
}
/* Scrollbar */
.comparison-section {
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--blue-400) transparent;
}

.comparison-section::-webkit-scrollbar {
    height: 8px;
}

.comparison-section::-webkit-scrollbar-thumb {
    background: var(--blue-400);
    border-radius: 20px;
}
/* =========================================================
   Mobile Responsive
========================================================== */
@media (max-width:992px){
    .comparison-section {
        padding:60px 0;
    }
    .comparison-section h2{
        margin-bottom:30px;
    }
    .comparison-section .sizes-tbl{
        min-width:650px;
    }
}
@media (max-width:768px){
    .comparison-section{
        padding:50px 0;
    }
    .comparison-section h2{
        font-size:1.6rem;
    }

    .comparison-section thead th,
    .comparison-section tbody td{
        padding:14px 16px;
        font-size:.92rem;
    }
}

@media (max-width:576px){
    .comparison-section h2{
        font-size:1.45rem;
    }
    .comparison-section .sizes-tbl{
        min-width:560px;
    }
    .comparison-section thead th,
    .comparison-section tbody td{
        padding:12px 14px;
        font-size:.88rem;
    }
}
/* ss standr pipes */
.std-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
gap:25px;
margin-top:40px;
}

.std-card{
background:#fff;
padding:28px;
border-radius:15px;
box-shadow:var(--shadow-lg);
border:1px solid var(--border);
transition:.35s;
}

.std-card:hover{
transform:translateY(-6px);
}

.std-card h3{
color:var(--blue-700);
margin-bottom:12px;
font-size:1.2rem;
}

.std-card p{
line-height:1.8;
color:var(--text-body);
}


/* gallery section */
/* ==========================================================
   Gallery Product Showcase
========================================================== */

.gallery-products-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:30px;
    margin-top:50px;
}

.gallery-product-card{
    background:#fff;
    border:1px solid var(--border);
    border-radius:18px;
    overflow:hidden;
    box-shadow:var(--shadow-md);
    transition:.35s ease;
    display:flex;
    flex-direction:column;
    height:100%;
}

.gallery-product-card:hover{
    transform:translateY(-8px);
    box-shadow:var(--shadow-xl);
}

.gallery-product-card img{
    width:100%;
    height:240px;
    object-fit:cover;
    display:block;
    transition:.35s ease;
}

.gallery-product-card:hover img{
    transform:scale(1.05);
}

.gallery-content{
    padding:24px;
    display:flex;
    flex-direction:column;
    flex:1;
}

.gallery-content h3{
    font-size:1.45rem;
    color:var(--blue-900);
    margin-bottom:12px;
    font-weight:700;
}

.gallery-content p{
    color:var(--text-body);
    line-height:1.8;
    margin-bottom:18px;
    font-size:.96rem;
}

.gallery-content ul{
    list-style:none;
    padding:0;
    margin:0 0 22px;
}

.gallery-content ul li{
    padding:10px 0;
    border-bottom:1px dashed var(--border);
    color:var(--text-body);
    font-size:.94rem;
}

.gallery-content ul li:last-child{
    border-bottom:none;
}

.gallery-content ul strong{
    color:var(--blue-700);
    font-weight:700;
}

.gallery-content .btn{
    margin-top:auto;
    width:100%;
    text-align:center;
}

/* ==========================================================
   Section Heading
========================================================== */

.section-subtitle{
    max-width:900px;
    margin:18px auto 0;
    font-size:1.05rem;
    color:var(--text-body);
    line-height:1.8;
}

/* ==========================================================
   Responsive
========================================================== */

@media(max-width:1200px){

.gallery-products-grid{
    grid-template-columns:repeat(2,1fr);
}

}

@media(max-width:768px){

.gallery-products-grid{
    grid-template-columns:1fr;
    gap:22px;
}

.gallery-product-card img{
    height:220px;
}

.gallery-content{
    padding:20px;
}

.gallery-content h3{
    font-size:1.3rem;
}

.section-subtitle{
    font-size:.95rem;
}

}
/* =========================================================
   Common Section
========================================================= */

.applications,
.benefits{
    padding:80px 0;
    background:linear-gradient(180deg,#fff 0%,var(--blue-30) 100%);
}

.section-desc{
    max-width:900px;
    margin:20px auto 0;
    font-size:1.03rem;
    line-height:1.9;
    color:var(--text-body);
}

/* =========================================================
   Applications
========================================================= */

.application-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(290px,1fr));
    gap:28px;
    margin-top:55px;
}

.app-card{
    background:#fff;
    border:1px solid var(--border);
    border-radius:18px;
    padding:28px;
    position:relative;
    overflow:hidden;
    transition:.35s ease;
    box-shadow:var(--shadow-md);
}

.app-card::before{
    content:"";
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:5px;
    background:linear-gradient(90deg,var(--blue-500),var(--blue-700));
    transform:scaleX(0);
    transition:.4s;
}

.app-card::after{
    content:"";
    position:absolute;
    width:180px;
    height:180px;
    border-radius:50%;
    background:rgba(33,131,210,.05);
    right:-80px;
    bottom:-80px;
    transition:.4s;
}

.app-card:hover{
    transform:translateY(-10px);
    box-shadow:0 18px 45px rgba(0,0,0,.12);
}

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

.app-card:hover::after{
    transform:scale(1.3);
}

.app-card h3{
    color:var(--blue-900);
    font-size:1.3rem;
    margin-bottom:14px;
    position:relative;
    z-index:2;
}

.app-card p{
    color:var(--text-body);
    line-height:1.8;
    position:relative;
    z-index:2;
}

/* =========================================================
   Benefits
========================================================= */

.feature-list{
    margin-top:55px;
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
    gap:22px;
    list-style:none;
    padding:0;
}

.feature-list li{
    background:#fff;
    border:1px solid var(--border);
    border-radius:16px;
    padding:18px 20px;
    display:flex;
    align-items:center;
    gap:14px;
    font-size:1rem;
    color:var(--text-body);
    font-weight:500;
    transition:.35s ease;
    box-shadow:var(--shadow-sm);
    position:relative;
    overflow:hidden;
}

.feature-list li::before{
    content:"✓";
    width:36px;
    height:36px;
    min-width:36px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    background:linear-gradient(135deg,var(--blue-600),var(--blue-400));
    color:#fff;
    font-weight:700;
    font-size:1rem;
}

.feature-list li::after{
    content:"";
    position:absolute;
    left:0;
    top:0;
    width:5px;
    height:100%;
    background:var(--blue-500);
    transform:scaleY(0);
    transition:.35s;
}

.feature-list li:hover{
    transform:translateY(-6px);
    box-shadow:0 15px 35px rgba(0,0,0,.10);
}

.feature-list li:hover::after{
    transform:scaleY(1);
}

/* =========================================================
   Responsive
========================================================= */

@media(max-width:992px){

    .applications,
    .benefits{
        padding:60px 0;
    }

    .section-desc{
        font-size:.98rem;
        line-height:1.8;
    }

}

@media(max-width:768px){

    .application-grid,
    .feature-list{
        grid-template-columns:1fr;
        gap:18px;
    }

    .app-card{
        padding:22px;
    }

    .feature-list li{
        padding:16px;
        font-size:.95rem;
    }

}
/* ms rectangular pipe benefits section */
/*==========================================================
COMMON GRID SECTION
==========================================================*/

.applications,
.benefits,
.content-section{
    padding:80px 0;
    background:#fff;
}

.benefits{
    background:linear-gradient(180deg,#f8fbff,#ffffff);
}

.section-subtitle{
    max-width:850px;
    margin:18px auto 0;
    font-size:1.02rem;
    line-height:1.8;
    color:var(--text-body);
}

/*==========================================================
APPLICATION GRID
==========================================================*/

.application-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:28px;
    margin-top:55px;
}

.app-card{
    background:#fff;
    border:1px solid var(--border);
    border-radius:18px;
    padding:32px;
    transition:.35s;
    position:relative;
    overflow:hidden;
    box-shadow:0 10px 30px rgba(0,0,0,.05);
}

.app-card::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    width:5px;
    height:100%;
    background:var(--blue-500);
    transition:.35s;
}

.app-card:hover{
    transform:translateY(-8px);
    box-shadow:0 18px 45px rgba(0,0,0,.12);
}

.app-card:hover::before{
    width:100%;
    opacity:.05;
}

.app-icon{
    width:65px;
    height:65px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:1.8rem;
    background:var(--blue-50);
    color:var(--blue-700);
    margin-bottom:22px;
    transition:.35s;
}

.app-card:hover .app-icon{
    transform:rotate(10deg) scale(1.08);
    background:var(--blue-500);
    color:#fff;
}

.app-card h3{
    color:var(--blue-900);
    font-size:1.28rem;
    margin-bottom:14px;
}

.app-card p{
    color:var(--text-body);
    line-height:1.75;
    font-size:.98rem;
}

/*==========================================================
FEATURE GRID
==========================================================*/

.feature-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:24px;
    margin-top:55px;
}

.feature-card{
    background:#fff;
    border-radius:18px;
    padding:28px;
    border:1px solid var(--border);
    transition:.35s;
    position:relative;
    overflow:hidden;
}

.feature-card::after{
    content:"";
    position:absolute;
    right:-40px;
    top:-40px;
    width:120px;
    height:120px;
    background:rgba(33,131,210,.06);
    border-radius:50%;
}

.feature-card:hover{
    transform:translateY(-7px);
    box-shadow:0 18px 40px rgba(0,0,0,.10);
}

.feature-card span{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:48px;
    height:48px;
    border-radius:50%;
    background:var(--blue-500);
    color:#fff;
    font-size:1.2rem;
    margin-bottom:18px;
}

.feature-card h3{
    font-size:1.18rem;
    color:var(--blue-900);
    margin-bottom:12px;
}

.feature-card p{
    line-height:1.7;
    color:var(--text-body);
}

/*==========================================================
CONTENT BOX
==========================================================*/

.content-box{
    max-width:1050px;
    margin:auto;
    background:#fff;
    border-radius:22px;
    padding:55px;
    border:1px solid var(--border);
    box-shadow:0 18px 45px rgba(0,0,0,.06);
    position:relative;
    overflow:hidden;
}

.content-box::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:6px;
    background:linear-gradient(90deg,var(--blue-700),var(--blue-400));
}

.content-box h2{
    font-size:2rem;
    color:var(--blue-900);
    margin-bottom:25px;
}

.content-box p{
    font-size:1.05rem;
    line-height:2;
    color:var(--text-body);
    text-align:justify;
}

/*==========================================================
EXTRA INFO BOXES
==========================================================*/

.info-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
    gap:25px;
    margin-top:50px;
}

.info-card{
    padding:28px;
    background:#fff;
    border-radius:16px;
    border:1px solid var(--border);
    transition:.35s;
}

.info-card:hover{
    transform:translateY(-6px);
    box-shadow:0 15px 35px rgba(0,0,0,.10);
}

.info-card h3{
    color:var(--blue-900);
    margin-bottom:15px;
    font-size:1.2rem;
}

.info-card p{
    color:var(--text-body);
    line-height:1.8;
}

/*==========================================================
RESPONSIVE
==========================================================*/

@media(max-width:992px){

.application-grid,
.feature-grid,
.info-grid{
    grid-template-columns:1fr 1fr;
}

.content-box{
    padding:40px;
}

}

@media(max-width:768px){

.applications,
.benefits,
.content-section{
    padding:60px 0;
}

.application-grid,
.feature-grid,
.info-grid{
    grid-template-columns:1fr;
}

.app-card,
.feature-card{
    padding:25px;
}

.content-box{
    padding:28px;
}

.content-box h2{
    font-size:1.55rem;
}

.content-box p{
    text-align:left;
    font-size:1rem;
}

.section-subtitle{
    font-size:.95rem;
}

}
/* ss square pipes technical guide */
.specification-section{

padding:70px 0;

background:#fff;

}

.tech-table{

width:100%;

border-collapse:collapse;

margin-top:25px;

font-size:15px;

}

.tech-table th{

background:#0e4d92;

color:#fff;

padding:14px;

text-align:left;

}

.tech-table td{

padding:13px;

border:1px solid #ddd;

}

.tech-table tr:nth-child(even){

background:#fafafa;

}

.tech-table tr:hover{

background:#f4f9ff;

}

@media(max-width:768px){

.tech-table{

display:block;

overflow-x:auto;

white-space:nowrap;

}

}
/* ============================================
   Sticky Engagement Bar + Back to Top
   Added for improved user engagement (SEO/UX)
   ============================================ */
.sticky-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  display: none;
  background: #fff;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.12);
}
@media (max-width: 900px) {
  .sticky-cta-bar { display: none; }
}
.sticky-cta-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 8px 4px 10px;
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
  color: var(--blue-900, #0b3a67);
  border-right: 1px solid #eef1f4;
}
.sticky-cta-btn:last-child { border-right: none; }
.sticky-cta-btn svg { width: 20px; height: 20px; margin-bottom: 2px; }
.sticky-cta-btn.sticky-whatsapp { color: #1fb855; }
.sticky-cta-btn.sticky-call { color: #0b3a67; }
.sticky-cta-btn.sticky-quote { color: #d9822b; }

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 30px;
  z-index: 998;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: var(--blue-900, #0b3a67);
  color: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  transition: opacity .2s ease;
}
.back-to-top svg { width: 20px; height: 20px; }
.back-to-top.visible { display: flex; }
@media (min-width: 901px) {
  .back-to-top { bottom: 24px; }
}

/* Desktop floating quick-contact rail (non-overlapping alternative) */
@media (min-width: 901px) {
  .sticky-cta-bar { display: none !important; }
}

/* Desktop floating WhatsApp quick button */
.float-whatsapp-desktop {
  position: fixed;
  right: 15px;
  bottom: 75px;
  z-index: 998;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #1fb855;
  color: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(0,0,0,0.25);
  text-decoration: none;
}
.float-whatsapp-desktop svg { width: 28px; height: 28px; }
@media (min-width: 901px) {
  .float-whatsapp-desktop { display: flex; }
}

/* ============================================================
   SVG ICON SYSTEM (replaces emoji glyphs site-wide)
   ============================================================ */
.icon-svg {
  width: 1em;
  height: 1em;
  display: inline-block;
  vertical-align: -0.15em;
  stroke-width: 1.8;
  flex-shrink: 0;
}
.ind-icon, .val-icon, .infra-top, .cert-icon, .qa-icon {
  color: var(--blue-600);
}
.mfg-step .icon-svg { color: var(--blue-600); }
.app-icon .icon-svg { color: inherit; }

.btn-icon {
  width: 17px;
  height: 17px;
  display: inline-block;
  vertical-align: -3px;
  margin-right: 6px;
  stroke-width: 2.2;
  flex-shrink: 0;
}

.check-icon {
  width: 18px;
  height: 18px;
  display: inline-block;
  vertical-align: -4px;
  margin-right: 4px;
  color: var(--blue-600);
  stroke-width: 2.6;
  flex-shrink: 0;
}
.feature-list li .check-icon { margin-right: 0; }

.contact-link .btn-icon,
.form-success .check-icon {
  color: currentColor;
}
.feature-card span .check-icon {
  width: 22px;
  height: 22px;
  color: #fff;
  vertical-align: 0;
  margin-right: 0;
  stroke-width: 2.6;
}