/* ===================================================
   NWCP — New World Colour Printing
   Modern Website Stylesheet
   Primary: #045D7F (deep teal blue)
   Dark:    #2E3F49
   Light bg: #F8FAFB
   =================================================== */

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #045D7F;
  --primary-dark: #034A65;
  --primary-light: #0a7aa8;
  --dark: #2E3F49;
  --dark-2: #3d5262;
  --text: #374151;
  --text-light: #6B7280;
  --bg-light: #F3F7FA;
  --bg-white: #ffffff;
  --border: #E5EBF0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(4,93,127,0.12);
  --shadow-lg: 0 8px 32px rgba(4,93,127,0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.25s ease;
  --font: 'Inter', Arial, sans-serif;
  --nav-h: 72px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad { padding: 80px 0; }
.bg-light { background: var(--bg-light); }

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(4, 93, 127, 0.08);
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 14px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 14px;
}
.section-header p {
  color: var(--text-light);
  max-width: 560px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}
.btn-white {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.btn-white:hover {
  background: #f0f8ff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

/* ===================================================
   NAVBAR
   =================================================== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: var(--transition);
}
.navbar.scrolled {
  box-shadow: var(--shadow-md);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}
/* ---- Navigation Logo ---- */
.nav-logo {
  height: 48px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  flex-shrink: 0;
}
.brand-nw { color: var(--primary); font-size: 1.4rem; }
.brand-cp { color: var(--dark); font-size: 1.4rem; }
.brand-full {
  font-size: 0.82rem;
  color: var(--text-light);
  font-weight: 400;
  line-height: 1.3;
  border-left: 1px solid var(--border);
  padding-left: 10px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-links > li {
  position: relative;
}
.nav-links > li > a {
  display: block;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--dark);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-links > li > a:hover,
.nav-links > li > a.active {
  color: var(--primary);
  background: rgba(4, 93, 127, 0.07);
}

/* Dropdown */
.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  padding: 8px 0;
}
.has-dropdown:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown li a {
  display: block;
  padding: 9px 18px;
  font-size: 0.88rem;
  color: var(--text);
  transition: var(--transition);
}
.dropdown li a:hover {
  background: var(--bg-light);
  color: var(--primary);
  padding-left: 22px;
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===================================================
   HERO
   =================================================== */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-h);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #023d54 0%, #045D7F 40%, #0a7aa8 70%, #1194c8 100%);
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 50%, rgba(255,255,255,0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(0,0,0,0.15) 0%, transparent 50%);
}
/* Subtle grid pattern */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px 120px;
  width: 100%;
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 18px;
  border-radius: 99px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 28px;
}
.hero-title {
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero-highlight {
  color: #7DD3F7;
}
.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  color: rgba(255,255,255,0.8);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.2);
}
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.55);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 1;
}
.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255,255,255,0.45);
  border-bottom: 2px solid rgba(255,255,255,0.45);
  transform: rotate(45deg);
  animation: bounce 1.8s infinite;
}
@keyframes bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50% { transform: rotate(45deg) translateY(6px); }
}

/* ===================================================
   ABOUT STRIP
   =================================================== */
.about-strip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-strip-image {
  border-radius: var(--radius);
  overflow: hidden;
}
.about-strip-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
.about-strip-text h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.1rem);
  font-weight: 700;
  color: var(--dark);
  margin: 14px 0 18px;
  line-height: 1.3;
}
.about-strip-text p {
  color: var(--text-light);
  margin-bottom: 14px;
  line-height: 1.7;
}
.about-strip-text .btn {
  margin-top: 8px;
}
.about-strip-certs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.cert-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--bg-light);
  border: 1px solid var(--border);
  padding: 18px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.cert-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.cert-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}
.cert-card strong {
  display: block;
  font-size: 0.88rem;
  color: var(--dark);
  margin-bottom: 2px;
}
.cert-card p {
  font-size: 0.78rem;
  color: var(--text-light);
  margin: 0;
}

/* ===================================================
   PRODUCTS GRID
   =================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.product-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  transition: var(--transition);
  cursor: pointer;
}
.product-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.product-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.product-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}
.product-card p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 16px;
}
.product-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 4px;
}
.product-card:hover .product-link {
  gap: 8px;
}

/* ===================================================
   WHY US
   =================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.why-card {
  padding: 32px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.why-card:hover {
  background: var(--bg-light);
  box-shadow: var(--shadow-sm);
}
.why-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}
.why-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}
.why-card p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.65;
}

/* ===================================================
   CTA
   =================================================== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 80px 0;
}
.cta-content {
  text-align: center;
}
.cta-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.cta-content p {
  color: rgba(255,255,255,0.8);
  font-size: 1.05rem;
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===================================================
   FOOTER
   =================================================== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 2fr;
  gap: 40px;
  margin-bottom: 48px;
}
/* ---- Footer Logo ---- */
.footer-logo-img {
  height: 48px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  margin-bottom: 12px;
}
.footer .footer-logo {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.footer .brand-nw { color: #7DD3F7; }
.footer .brand-cp { color: #fff; }
.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
}
.footer-links h4,
.footer-contact h4 {
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.footer-links ul li {
  margin-bottom: 10px;
}
.footer-links ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-links ul li a:hover {
  color: #7DD3F7;
  padding-left: 4px;
}
.footer-contact p {
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: 12px;
}
.footer-contact a {
  color: #7DD3F7;
}
.footer-contact a:hover {
  text-decoration: underline;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
}

/* ===================================================
   INNER PAGE — HERO BANNER
   =================================================== */
.page-banner {
  background: linear-gradient(135deg, #023d54, var(--primary));
  padding: calc(var(--nav-h) + 48px) 0 64px;
  margin-top: 0;
}
.page-banner-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.page-banner-content .section-label { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.9); }
.page-banner-content h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: #fff;
  margin: 12px 0 0;
}

/* ===================================================
   ABOUT PAGE
   =================================================== */
.about-content { padding: 72px 0; }
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 72px;
}
.about-text h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 20px;
}
.about-text p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}
.about-photo {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-light);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 0.9rem;
  border: 1px dashed var(--border);
}
.certs-section { padding: 72px 0; background: var(--bg-light); }
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.cert-detail-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
}
.cert-detail-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.cert-detail-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}
.cert-detail-card .cert-id {
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 14px;
  font-family: monospace;
}
.cert-detail-card p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.65;
}

/* Awards */
.awards-section { padding: 72px 0; }
.awards-list { display: flex; flex-direction: column; gap: 16px; max-width: 700px; }
.award-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px 24px;
  background: var(--bg-light);
  border-radius: var(--radius);
  border-left: 4px solid var(--primary);
}
.award-year {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  background: rgba(4, 93, 127, 0.08);
  padding: 3px 10px;
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
}
.award-item p {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.5;
}

/* ===================================================
   PRODUCT DETAIL PAGE
   =================================================== */
.product-detail { padding: 72px 0; }
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.product-detail-text h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 20px;
}
.product-detail-text p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}
.product-detail-image {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-light);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 4rem;
  border: 1px solid var(--border);
}
.product-nav { padding: 40px 0; background: var(--bg-light); }
.product-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.product-nav-item {
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  text-align: center;
  transition: var(--transition);
}
.product-nav-item:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.product-nav-item.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===================================================
   CONTACT PAGE
   =================================================== */
.contact-section { padding: 72px 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
}
.contact-info h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 24px;
}
.contact-office {
  margin-bottom: 32px;
  padding: 24px;
  background: var(--bg-light);
  border-radius: var(--radius);
  border-left: 4px solid var(--primary);
}
.contact-office h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}
.contact-office p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.8;
}
.contact-office a {
  color: var(--primary);
  font-weight: 500;
}
.contact-form-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.contact-form-wrap h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 28px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg-light);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(4, 93, 127, 0.1);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}
.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}
.form-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ===================================================
   ANIMATIONS
   =================================================== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-strip-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-strip-certs { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  /* Mobile nav */
  .brand-full { display: none; }
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 0 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav-links > li > a { padding: 12px 24px; border-radius: 0; }
  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: var(--bg-light);
    display: none;
  }
  .has-dropdown.open .dropdown { display: block; }
  .dropdown li a { padding: 9px 36px; }

  .section-pad { padding: 56px 0; }
  .products-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-stats { gap: 24px; }
  .stat-num { font-size: 1.6rem; }
  .hero-actions { flex-direction: column; }
  .cta-actions { flex-direction: column; align-items: center; }
  .product-nav-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: 1fr; }
  .about-strip-certs { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.4rem; }
}