/* YATAI GROUP - Water Tank Landing Pages */
:root {
  --primary: #1B4F8A;
  --primary-dark: #143a66;
  --primary-light: #2a6cb8;
  --accent: #25D366;
  --accent-hover: #1da851;
  --steel: #E8ECF0;
  --steel-dark: #d0d7de;
  --text: #1a1a2e;
  --text-muted: #5a6270;
  --white: #ffffff;
  --shadow: 0 4px 24px rgba(27, 79, 138, 0.08);
  --shadow-sm: 0 2px 12px rgba(27, 79, 138, 0.06);
  --shadow-lg: 0 12px 48px rgba(27, 79, 138, 0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
  --header-h: 72px;
  --max-w: 1200px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

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

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-light); }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

.section { padding: 80px 0; }
.section-alt { background: var(--steel); }
.section-dark { background: var(--primary); color: var(--white); }

.section-header { text-align: center; margin-bottom: 48px; }
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-dark .section-label { color: rgba(255,255,255,0.7); }
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
}
.section-dark .section-desc { color: rgba(255,255,255,0.8); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: var(--white); }
.btn-accent { background: var(--accent); color: var(--white); border-color: var(--accent); }
.btn-accent:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--white); }
.btn-outline { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--primary); }
.btn-outline-dark { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline-dark:hover { background: var(--primary); color: var(--white); }
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  height: var(--header-h);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}
.logo-img {
  height: 42px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  display: block;
}
.footer-brand .logo-img {
  height: 36px;
}
.logo-icon {
  width: 40px; height: 40px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 0.85rem;
}
.logo:hover { color: var(--primary-dark); }

.nav-desktop { display: flex; align-items: center; gap: 32px; }
.nav-desktop a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  position: relative;
}
.nav-desktop a:hover, .nav-desktop a.active { color: var(--primary); }
.nav-desktop a.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  transition: var(--transition);
  border-radius: 2px;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--header-h); left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--steel-dark);
  padding: 20px;
  box-shadow: var(--shadow);
  z-index: 999;
}
.nav-mobile.open { display: block; }
.nav-mobile a {
  display: block;
  padding: 14px 0;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--steel);
  text-decoration: none;
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile .btn { width: 100%; margin-top: 12px; }

/* Hero */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  margin-top: var(--header-h);
}
.hero-video-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-video-wrap video {
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(27,79,138,0.88) 0%, rgba(20,58,102,0.75) 50%, rgba(0,0,0,0.5) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 0;
  max-width: 720px;
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--white);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.9);
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; }

.hero-page {
  margin-top: var(--header-h);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 80px 0 60px;
  text-align: center;
  color: var(--white);
}
.hero-page h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; margin-bottom: 16px; }
.hero-page p { font-size: 1.1rem; opacity: 0.9; max-width: 600px; margin: 0 auto; }

/* Stats bar */
.stats-bar {
  background: var(--white);
  border-bottom: 1px solid var(--steel-dark);
  padding: 32px 0;
  margin-top: -1px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item .stat-num {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.stat-item .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Product cards */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}
.product-card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.product-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-body { padding: 24px; }
.product-card-body h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
.product-card-body p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 16px; }
.product-card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.feature-card:hover { transform: translateY(-4px); }
.feature-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; }

/* Premium features section */
.features-section {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--steel) 0%, #f0f4f8 50%, var(--steel) 100%);
}
.features-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(27,79,138,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.features-section::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(37,211,102,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.features-grid--premium {
  position: relative;
  z-index: 1;
}
.feature-card--premium {
  position: relative;
  padding: 28px 24px 24px;
  border: 1px solid rgba(27,79,138,0.08);
  background: var(--white);
  box-shadow: 0 2px 16px rgba(27,79,138,0.06);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.feature-card--premium::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card--premium:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(27,79,138,0.15);
}
.feature-card--premium:hover::before { opacity: 1; }
.feature-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 18px;
}
.feature-num {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(27,79,138,0.08);
  user-select: none;
}
.feature-icon svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}
.feature-icon--blue {
  background: linear-gradient(135deg, #1B4F8A, #2a6cb8);
  color: var(--white);
}
.feature-icon--gold {
  background: linear-gradient(135deg, #d4a017, #f0c040);
  color: var(--white);
}
.feature-icon--teal {
  background: linear-gradient(135deg, #0d9488, #14b8a6);
  color: var(--white);
}
.feature-icon--green {
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: var(--white);
}
.feature-icon--purple {
  background: linear-gradient(135deg, #6366f1, #818cf8);
  color: var(--white);
}
.features-grid--premium .feature-card:nth-child(1) { transition-delay: 0ms; }
.features-grid--premium .feature-card:nth-child(2) { transition-delay: 60ms; }
.features-grid--premium .feature-card:nth-child(3) { transition-delay: 120ms; }
.features-grid--premium .feature-card:nth-child(4) { transition-delay: 180ms; }
.features-grid--premium .feature-card:nth-child(5) { transition-delay: 240ms; }
.features-grid--premium .feature-card:nth-child(6) { transition-delay: 300ms; }

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.gallery-item {
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery-item:hover img { transform: scale(1.08); }
.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(27,79,138,0);
  transition: background var(--transition);
}
.gallery-item:hover::after { background: rgba(27,79,138,0.2); }

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.94);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 60px 20px 40px;
}
.lightbox.open { display: flex; }
.lightbox-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 92vw;
  max-height: 78vh;
}
.lightbox-stage img {
  max-height: 78vh;
  max-width: 92vw;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
  user-select: none;
}
.lightbox-close {
  position: absolute;
  top: 16px; right: 20px;
  background: rgba(255,255,255,0.12);
  border: none;
  color: var(--white);
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  z-index: 3;
}
.lightbox-close:hover { background: rgba(255,255,255,0.22); }
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  z-index: 3;
  backdrop-filter: blur(4px);
}
.lightbox-nav:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.6);
}
.lightbox-prev { left: 16px; padding-right: 4px; }
.lightbox-next { right: 16px; padding-left: 4px; }
.lightbox-caption {
  margin-top: 16px;
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
  text-align: center;
  max-width: 640px;
  line-height: 1.5;
}
.lightbox-counter {
  margin-top: 8px;
  color: rgba(255,255,255,0.55);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* Certificate section */
.cert-section {
  position: relative;
  overflow: hidden;
}
.cert-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(100%, 1400px);
  height: 100%;
  background: radial-gradient(ellipse at 50% 0%, rgba(27,79,138,0.06) 0%, transparent 65%);
  pointer-events: none;
}
.cert-showcase-wrap {
  width: min(100% - 32px, 1360px);
  margin: 0 auto 8px;
  position: relative;
  z-index: 1;
}
.cert-hint {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.cert-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
}
.cert-badge {
  padding: 8px 18px;
  background: var(--white);
  border: 1.5px solid rgba(27,79,138,0.12);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(27,79,138,0.06);
}
.guarantee-bar--cert {
  background: linear-gradient(135deg, var(--white) 0%, #f5f8fb 100%);
  border: 1px solid rgba(27,79,138,0.08);
  box-shadow: var(--shadow);
  margin-top: 40px;
}

/* Certificate 3D carousel (zturn - aikegroup.com style) */
.lb_gl {
  margin: 0 auto;
  max-width: 100%;
}
.cert-3d-container {
  width: 100%;
  margin: 0 auto;
}
.pictureSlider.poster-main {
  position: relative;
  height: 480px;
  margin: 0 auto;
  max-width: 1320px;
  overflow: hidden;
}
.poster-main a,
.poster-main img {
  display: block;
}
.poster-list {
  position: relative;
  width: 100%;
  height: 480px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.poster-item {
  background: #fff;
  border-radius: 12px;
  padding: 24px 20px 16px;
  transition: all 0.5s;
  cursor: pointer;
  width: 320px;
  box-shadow: 0 8px 32px rgba(27,79,138,0.12);
  border: 1px solid rgba(27,79,138,0.06);
  box-sizing: border-box;
}
.poster-item:hover {
  box-shadow: 0 12px 40px rgba(27,79,138,0.18);
}
.poster-item img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.poster-btn {
  position: absolute;
  top: 0;
  width: 72px;
  height: 100%;
  z-index: 20;
  cursor: pointer;
  border: none;
  background: transparent;
  padding: 0;
}
.poster-btn::after {
  content: '';
  display: block;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--primary);
  box-shadow: var(--shadow);
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  transition: all var(--transition);
}
.poster-btn:hover::after {
  background: var(--primary);
}
.poster-prev-btn { left: 0; }
.poster-prev-btn::after {
  left: 8px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231B4F8A' stroke-width='2'%3E%3Cpath d='M15 18l-6-6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 20px;
}
.poster-next-btn { right: 0; }
.poster-next-btn::after {
  right: 8px;
  left: auto;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231B4F8A' stroke-width='2'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 20px;
}
.poster-btn:hover::after {
  background-color: var(--primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2'%3E%3Cpath d='M15 18l-6-6 6-6'/%3E%3C/svg%3E");
}
.poster-next-btn:hover::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");
}

@media (max-width: 760px) {
  #zturn { display: none; }
  #zturn2 { display: block; }
  .pictureSlider.poster-main { height: 380px; max-width: 100%; }
  .poster-list { height: 380px; }
  .poster-item { width: 240px; padding: 18px 14px 12px; }
  .poster-btn { width: 48px; }
  .cert-showcase-wrap { width: calc(100% - 24px); }
  .cert-hint { font-size: 0.8rem; padding: 0 8px; }
}
@media (min-width: 761px) {
  #zturn { display: block; }
  #zturn2 { display: none; }
}

/* Contact modal */
.contact-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.contact-modal.open { display: flex; }
.contact-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 31, 51, 0.6);
  backdrop-filter: blur(4px);
}
.contact-modal-panel {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.25s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.contact-modal-close {
  position: absolute;
  top: 12px; right: 16px;
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}
.contact-modal-close:hover { color: var(--text); }
.contact-modal-panel h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.contact-modal-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.contact-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--steel-dark);
  background: var(--white);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}
.contact-option:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  color: inherit;
  transform: translateY(-1px);
}
.contact-option-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-option-icon svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}
.contact-option--wa .contact-option-icon {
  background: rgba(37, 211, 102, 0.15);
  color: #128C7E;
}
.contact-option--phone .contact-option-icon {
  background: rgba(27, 79, 138, 0.1);
  color: var(--primary);
}
.contact-option--email .contact-option-icon {
  background: rgba(99, 102, 241, 0.12);
  color: #4f46e5;
}
.contact-option-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contact-option-body strong {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}
.contact-option-body span:last-child {
  font-size: 0.85rem;
  color: var(--text-muted);
  word-break: break-all;
}
.contact-option-copy {
  flex-shrink: 0;
  padding: 8px 12px;
  border: 1.5px solid var(--steel-dark);
  background: var(--steel);
  border-radius: 6px;
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  transition: all var(--transition);
}
.contact-option-copy:hover { background: var(--white); }
.contact-option-copy.copied {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
/* Legacy contact blocks (kept for compatibility) */
.contact-modal-block {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--steel);
}
.contact-modal-block:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.contact-modal-block label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.contact-modal-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.contact-modal-value {
  flex: 1;
  padding: 10px 14px;
  background: var(--steel);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  word-break: break-all;
  user-select: all;
}
.btn-copy {
  flex-shrink: 0;
  padding: 10px 16px;
  border: 1.5px solid var(--steel-dark);
  background: var(--white);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-copy:hover { background: var(--steel); }
.btn-copy.copied {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.contact-modal-block .btn { width: 100%; }
.copy-toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--text);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 2200;
}
.copy-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* FAQ */
.faq-section { overflow: hidden; }
.faq-layout {
  display: grid;
  grid-template-columns: minmax(260px, 340px) 1fr;
  gap: 48px 56px;
  align-items: start;
}
.faq-aside {
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.faq-aside .section-label { margin-bottom: 12px; }
.faq-aside-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 16px;
}
.faq-aside-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 24px;
}
.faq-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}
.faq-highlight {
  background: var(--white);
  border: 1px solid var(--steel-dark);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.faq-highlight-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.faq-highlight-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.3;
}
.faq-topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.faq-topic-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(27, 79, 138, 0.08);
  border: 1px solid rgba(27, 79, 138, 0.15);
  padding: 5px 12px;
  border-radius: 999px;
}
.faq-aside-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--steel-dark);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item:hover {
  border-color: rgba(27, 79, 138, 0.25);
  box-shadow: var(--shadow);
}
.faq-item.open {
  border-color: rgba(27, 79, 138, 0.35);
  box-shadow: 0 8px 28px rgba(27, 79, 138, 0.1);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text);
  transition: color var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-q-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--primary);
  background: rgba(27, 79, 138, 0.08);
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}
.faq-item.open .faq-q-num {
  background: var(--primary);
  color: var(--white);
}
.faq-q-text { flex: 1; line-height: 1.45; }
.faq-icon {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--steel);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  line-height: 1;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: var(--white);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item.open .faq-answer { padding-bottom: 4px; }
.faq-answer p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.75;
  padding: 0 20px 18px 66px;
  margin: 0;
  border-top: 1px solid var(--steel);
  padding-top: 16px;
}

/* CTA / Contact form */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 80px 0;
}
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.cta-info h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.cta-info p { opacity: 0.9; margin-bottom: 24px; line-height: 1.7; }
.contact-list { list-style: none; }
.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.95rem;
}
.contact-list .icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }
.contact-list a { color: var(--white); text-decoration: underline; }
.contact-list a:hover { opacity: 0.85; }

.quote-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.quote-form h3 { color: var(--text); font-size: 1.25rem; margin-bottom: 20px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--steel-dark);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color var(--transition);
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-error {
  color: #d32f2f;
  font-size: 0.8rem;
  margin-top: 4px;
  display: none;
}
.form-group.error .form-error { display: block; }
.form-group.error input,
.form-group.error select,
.form-group.error textarea { border-color: #d32f2f; }
.quote-form .btn { width: 100%; margin-top: 8px; }

/* CTA home — desktop premium layout */
.cta-section--home {
  position: relative;
  overflow: hidden;
  padding: 96px 0;
}
.cta-section--home .container {
  position: relative;
  z-index: 1;
}
.cta-bg-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.cta-bg-decor::before,
.cta-bg-decor::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.cta-bg-decor::before {
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 68%);
}
.cta-bg-decor::after {
  bottom: -160px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37,211,102,0.1) 0%, transparent 70%);
}
.cta-section--home .cta-grid {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 56px 64px;
  align-items: center;
}
.cta-section--home .cta-grid > * {
  min-width: 0;
}
.cta-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.95);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.28);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.cta-section--home .cta-info h2 {
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  line-height: 1.15;
  margin-bottom: 18px;
}
.cta-section--home .cta-info > p {
  font-size: 1.02rem;
  max-width: 480px;
  margin-bottom: 28px;
}
.cta-perks {
  list-style: none;
  margin-bottom: 32px;
}
.cta-perks li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  line-height: 1.5;
  opacity: 0.95;
  margin-bottom: 12px;
}
.cta-perks li:last-child { margin-bottom: 0; }
.cta-perks svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  fill: var(--accent);
}
.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius);
  color: var(--white);
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  backdrop-filter: blur(8px);
}
a.contact-card:hover {
  color: var(--white);
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.32);
  transform: translateX(4px);
}
.contact-card--whatsapp:hover {
  border-color: rgba(37,211,102,0.5);
  background: rgba(37,211,102,0.12);
}
.contact-card--static { cursor: default; }
.contact-card-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.12);
  border-radius: 10px;
}
.contact-card-icon svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}
.contact-card--whatsapp .contact-card-icon {
  background: rgba(37,211,102,0.2);
  color: #5eff9a;
}
.contact-card-body { min-width: 0; }
.contact-card-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.75;
  margin-bottom: 4px;
}
.contact-card-value {
  display: block;
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.45;
  word-break: break-word;
}
.quote-form--elevated {
  position: relative;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 36px 40px 32px;
  border: 1px solid rgba(255,255,255,0.65);
  box-shadow: 0 24px 64px rgba(0,0,0,0.18), 0 0 0 1px rgba(27,79,138,0.04);
}
.quote-form--elevated::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--accent));
}
.quote-form-header {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--steel);
}
.quote-form-header h3 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.quote-form-header p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}
.quote-form--elevated .form-group input,
.quote-form--elevated .form-group select,
.quote-form--elevated .form-group textarea {
  padding: 13px 16px;
  border-radius: 10px;
  background: #f8fafc;
  border-color: #e2e8f0;
}
.quote-form--elevated .form-group input:focus,
.quote-form--elevated .form-group select:focus,
.quote-form--elevated .form-group textarea:focus {
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(27,79,138,0.1);
}
.quote-form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 1rem;
  padding: 16px 24px;
}
.quote-form-submit svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  flex-shrink: 0;
}
.quote-form-note {
  margin-top: 14px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}
.quote-form-success,
.quote-form-api-error {
  display: none;
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.875rem;
  text-align: center;
  line-height: 1.5;
}
.quote-form-success {
  background: #e8f5e9;
  color: #2e7d32;
  border: 1px solid #a5d6a7;
}
.quote-form-api-error {
  background: #ffebee;
  color: #c62828;
  border: 1px solid #ef9a9a;
}

@media (min-width: 769px) {
  .cta-section--home .form-row--2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
  }
  .cta-section--home .form-row--2 .form-group { margin-bottom: 0; }
}

@media (max-width: 768px) {
  #contact { scroll-margin-top: calc(var(--header-h) + 12px); }
  .cta-section--home {
    padding: 48px 0 calc(32px + env(safe-area-inset-bottom));
  }
  .cta-section--home .cta-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .cta-section--home .quote-form--elevated {
    order: -1;
    width: 100%;
    max-width: 100%;
    padding: 24px 18px;
    border-radius: var(--radius);
  }
  .cta-section--home .cta-info {
    width: 100%;
    text-align: center;
  }
  .cta-section--home .cta-info > p {
    max-width: none;
    font-size: 0.92rem;
    margin-bottom: 20px;
  }
  .cta-section--home .cta-info h2 {
    font-size: clamp(1.55rem, 6vw, 2rem);
  }
  .cta-badge { margin-bottom: 14px; }
  .cta-perks {
    text-align: left;
    margin-bottom: 22px;
  }
  .cta-perks li {
    font-size: 0.88rem;
    margin-bottom: 10px;
    gap: 10px;
  }
  .cta-perks svg { width: 18px; height: 18px; }
  .contact-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .contact-card--static { grid-column: 1 / -1; }
  .contact-card {
    padding: 12px 14px;
    gap: 10px;
    min-height: 48px;
  }
  a.contact-card:hover { transform: none; }
  .contact-card-icon { width: 36px; height: 36px; border-radius: 8px; }
  .contact-card-icon svg { width: 18px; height: 18px; }
  .contact-card-label { font-size: 0.68rem; margin-bottom: 2px; }
  .contact-card-value {
    font-size: 0.8rem;
    line-height: 1.35;
    word-break: break-word;
  }
  .contact-card--static .contact-card-value { font-size: 0.78rem; }
  .quote-form-header {
    margin-bottom: 18px;
    padding-bottom: 14px;
    text-align: center;
  }
  .quote-form-header h3 { font-size: 1.15rem; }
  .quote-form-header p { font-size: 0.88rem; }
  .quote-form--elevated .form-group input,
  .quote-form--elevated .form-group select,
  .quote-form--elevated .form-group textarea {
    font-size: 16px;
    padding: 14px 16px;
    min-height: 48px;
    max-width: 100%;
    box-sizing: border-box;
  }
  .quote-form--elevated .form-group textarea { min-height: 110px; }
  .quote-form-submit {
    min-height: 50px;
    font-size: 1rem;
    margin-top: 4px;
  }
  .quote-form-note { font-size: 0.78rem; line-height: 1.5; }
}

@media (max-width: 480px) {
  .cta-section--home { padding: 40px 0 calc(24px + env(safe-area-inset-bottom)); }
  .cta-section--home .quote-form--elevated { padding: 20px 16px; }
  .contact-cards { grid-template-columns: 1fr; }
  .contact-card--static { grid-column: auto; }
}

/* Guarantee bar */
.guarantee-bar {
  background: var(--steel);
  border-radius: var(--radius);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 48px;
}
.guarantee-bar p { font-weight: 600; color: var(--text); }
.guarantee-tags { display: flex; flex-wrap: wrap; gap: 16px; }
.guarantee-tags span {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.guarantee-tags span::before { content: '✓'; color: var(--accent); font-weight: 700; }

/* Comparison table */
.compare-table-wrap { overflow-x: auto; margin-top: 32px; }
.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  min-width: 600px;
}
.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: center;
  border-bottom: 1px solid var(--steel);
  font-size: 0.9rem;
}
.compare-table th {
  background: var(--primary);
  color: var(--white);
  font-weight: 600;
}
.compare-table th:first-child,
.compare-table td:first-child {
  text-align: left;
  font-weight: 600;
  background: var(--steel);
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .highlight { background: rgba(37,211,102,0.1); font-weight: 600; color: var(--primary); }

/* Product detail sections */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 60px 0;
  border-bottom: 1px solid var(--steel-dark);
}
.product-detail:nth-child(even) { direction: rtl; }
.product-detail:nth-child(even) > * { direction: ltr; }
.product-detail:last-child { border-bottom: none; }
.product-detail-img { border-radius: var(--radius); box-shadow: var(--shadow-lg); padding-bottom: 4px; }
.product-detail-img > img { width: 100%; height: 400px; object-fit: cover; border-radius: var(--radius); transition: opacity 0.3s ease; }
.product-detail-content h2 { font-size: 1.75rem; font-weight: 800; color: var(--primary); margin-bottom: 16px; }
.product-detail-content p { color: var(--text-muted); margin-bottom: 20px; line-height: 1.7; }
.spec-list { list-style: none; margin-bottom: 24px; }
.spec-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--steel);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.spec-list li span:first-child { color: var(--text-muted); }
.spec-list li span:last-child { font-weight: 600; text-align: right; }
.badge-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.badge {
  background: var(--steel);
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Video grid */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.video-card {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.video-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}
.video-play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.25);
  transition: background var(--transition);
}
.video-card:hover .video-play-btn {
  background: rgba(27, 79, 138, 0.35);
}
.video-play-btn::after {
  content: '';
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%231B4F8A'%3E%3Cpath d='M8 5v14l11-7z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 55% center;
  background-size: 28px;
  transition: transform var(--transition);
}
.video-card:hover .video-play-btn::after {
  transform: scale(1.08);
}

/* Video modal */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2050;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.video-modal.open { display: flex; }
.video-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(4px);
}
.video-modal-panel {
  position: relative;
  width: 100%;
  max-width: 960px;
  z-index: 1;
  animation: modalIn 0.25s ease;
}
.video-modal-close {
  position: absolute;
  top: -44px;
  right: 0;
  background: none;
  border: none;
  color: var(--white);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
  z-index: 2;
}
.video-modal-close:hover { opacity: 0.8; }
#video-modal-player {
  width: 100%;
  max-height: 80vh;
  border-radius: var(--radius);
  background: #000;
  display: block;
}

/* Product nav pills */
.product-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  justify-content: flex-start;
  margin-bottom: 48px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 4px;
}
.product-nav::-webkit-scrollbar { display: none; }
.product-nav a {
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--steel-dark);
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.product-nav a:hover, .product-nav a.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* Blog */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.blog-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: inherit; }
.blog-card-img { height: 200px; overflow: hidden; }
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; }
.blog-card-body { padding: 24px; }
.blog-card-date { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; }
.blog-card-body h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.blog-card-body p { font-size: 0.9rem; color: var(--text-muted); }
.blog-card-link { font-size: 0.85rem; font-weight: 600; color: var(--primary); margin-top: 12px; display: inline-block; }

/* Article */
.article-content { max-width: 760px; margin: 0 auto; }
.article-content h2 { font-size: 1.5rem; font-weight: 700; margin: 40px 0 16px; color: var(--primary); }
.article-content h3 { font-size: 1.2rem; font-weight: 600; margin: 28px 0 12px; }
.article-content p { margin-bottom: 16px; color: var(--text-muted); line-height: 1.8; }
.article-content ul, .article-content ol { margin: 0 0 16px 24px; color: var(--text-muted); line-height: 1.8; }
.article-content li { margin-bottom: 8px; }
.article-hero-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 40px;
}
.article-cta {
  background: var(--steel);
  border-radius: var(--radius);
  padding: 32px;
  margin: 40px 0;
  text-align: center;
}
.article-cta h3 { font-size: 1.25rem; margin-bottom: 12px; }
.article-cta p { color: var(--text-muted); margin-bottom: 20px; }
.article-meta { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 24px; }

/* About page */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-intro-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.about-intro-img img { width: 100%; height: 400px; object-fit: cover; }
.about-intro-img .video-card { display: block; width: 100%; }
.about-intro-img .video-card img { width: 100%; height: 400px; aspect-ratio: auto; object-fit: cover; }

.timeline { position: relative; max-width: 700px; margin: 0 auto; padding-left: 40px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 12px; top: 0; bottom: 0;
  width: 2px;
  background: var(--steel-dark);
}
.timeline-item { position: relative; margin-bottom: 36px; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -34px; top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--primary);
}
.timeline-year { font-size: 0.85rem; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.timeline-item h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.timeline-item p { font-size: 0.9rem; color: var(--text-muted); }

.qual-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.qual-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  font-size: 0.9rem;
}
.qual-item::before { content: '✓'; color: var(--accent); font-weight: 700; flex-shrink: 0; }

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(27,79,138,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.testimonial-stars { color: #f5a623; font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.testimonial-card blockquote {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
  flex: 1;
}
.testimonial-footer {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--steel);
}
.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--steel);
  box-shadow: 0 2px 8px rgba(27,79,138,0.1);
}
.testimonial-author { font-size: 0.9rem; font-weight: 600; color: var(--text); }
.testimonial-role { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

/* Footer */
.site-footer {
  background: #0f1f33;
  color: rgba(255,255,255,0.8);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { color: var(--white); margin-bottom: 16px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; opacity: 0.8; }
.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  padding: 6px 0;
  text-decoration: none;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.6;
}

/* WhatsApp float */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1500;
  width: 60px; height: 60px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,0.5); }
.whatsapp-float:active { transform: scale(0.95); }
.whatsapp-float svg { width: 32px; height: 32px; fill: var(--white); pointer-events: none; }

/* Mobile sticky CTA */
.mobile-cta-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 1400;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--steel-dark);
  padding: 12px 16px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  gap: 10px;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
}
.mobile-cta-bar .btn { flex: 1; padding: 13px 12px; font-size: 0.9rem; min-height: 48px; }

/* Breadcrumb */
.breadcrumb {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,0.9); }
.breadcrumb span { margin: 0 8px; }

/* Hero page with background */
.hero-page--bg {
  position: relative;
  background: linear-gradient(135deg, rgba(27,79,138,0.92) 0%, rgba(20,58,102,0.88) 100%),
    url('../assets/images/stainless-new-01.webp') center/cover no-repeat;
  padding: 100px 0 72px;
}
.hero-page--bg-about {
  background: linear-gradient(135deg, rgba(27,79,138,0.92) 0%, rgba(20,58,102,0.88) 100%),
    url('../assets/images/galvanized-new-02.webp') center/cover no-repeat;
}
.hero-page--bg-products {
  background: linear-gradient(135deg, rgba(27,79,138,0.92) 0%, rgba(20,58,102,0.88) 100%),
    url('../assets/images/stainless-new-03.webp') center/cover no-repeat;
}
.hero-page--bg-blog {
  background: linear-gradient(135deg, rgba(27,79,138,0.92) 0%, rgba(20,58,102,0.88) 100%),
    url('../assets/images/grp-new-05.webp') center/cover no-repeat;
}

/* Applications */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.app-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.app-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.app-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}
.app-card-body {
  padding: 20px;
}
.app-card-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.app-card-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Process steps */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.process-step {
  text-align: center;
  padding: 28px 20px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
}
.process-step::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: 50%;
}
.process-step h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.process-step p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Mosaic gallery */
.mosaic-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 200px;
  gap: 12px;
}
.mosaic-item {
  overflow: hidden;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
}
.mosaic-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.mosaic-item:hover img { transform: scale(1.08); }
.mosaic-item--wide { grid-column: span 2; }
.mosaic-item--tall { grid-row: span 2; }

/* Product thumb gallery */
.product-thumb-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.product-thumb {
  width: 72px;
  height: 72px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  background: var(--steel);
  transition: border-color var(--transition), transform var(--transition);
}
.product-thumb:hover,
.product-thumb.active {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Factory gallery */
.factory-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.factory-gallery .gallery-item { aspect-ratio: 4/3; }

/* Showcase strip */
.showcase-strip {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 8px 4px 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.showcase-strip::-webkit-scrollbar { display: none; }
.showcase-strip img {
  flex: 0 0 220px;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  scroll-snap-align: start;
  box-shadow: var(--shadow);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Enhanced cards */
.feature-card {
  border: 1px solid rgba(27,79,138,0.06);
}
.product-card {
  border: 1px solid rgba(27,79,138,0.06);
}
.stat-item {
  padding: 8px;
  transition: transform var(--transition);
}
.stat-item:hover { transform: translateY(-4px); }

/* Responsive */
@media (max-width: 1024px) {
  .product-grid, .features-grid, .blog-grid, .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid--premium { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .product-detail { grid-template-columns: 1fr; }
  .product-detail:nth-child(even) { direction: ltr; }
  .about-intro { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; }
  .cta-section--home .cta-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .applications-grid, .process-steps { grid-template-columns: repeat(2, 1fr); }
  .mosaic-gallery { grid-template-columns: repeat(2, 1fr); }
  .factory-gallery { grid-template-columns: repeat(2, 1fr); }
  .faq-layout { grid-template-columns: 1fr; gap: 36px; }
  .faq-aside { position: static; text-align: center; }
  .faq-topic-tags { justify-content: center; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-header { margin-bottom: 36px; }
  .section-desc { font-size: 0.95rem; padding: 0 4px; }
  .container { padding: 0 16px; }
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
  .product-grid, .features-grid, .blog-grid, .testimonials-grid,
  .gallery-grid, .video-grid, .qual-grid { grid-template-columns: 1fr; }
  .features-grid--premium { grid-template-columns: 1fr; gap: 16px; }
  .feature-card--premium {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 0 16px;
    padding: 20px;
  }
  .feature-card--premium .feature-card-head {
    grid-column: 1;
    grid-row: 1 / 3;
    flex-direction: column;
    margin-bottom: 0;
    align-self: center;
  }
  .feature-card--premium .feature-num { display: none; }
  .feature-card--premium .feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 0;
  }
  .feature-card--premium h3 {
    grid-column: 2;
    grid-row: 1;
    margin-bottom: 6px;
    font-size: 1rem;
    align-self: end;
  }
  .feature-card--premium p {
    grid-column: 2;
    grid-row: 2;
    margin-bottom: 0;
    font-size: 0.875rem;
  }
  .applications-grid, .process-steps, .mosaic-gallery, .factory-gallery { grid-template-columns: 1fr; }
  .faq-question { padding: 16px; gap: 10px; font-size: 0.92rem; }
  .faq-q-num { width: 28px; height: 28px; font-size: 0.68rem; }
  .faq-answer p { padding: 14px 16px 16px 16px; font-size: 0.9rem; }
  .faq-highlights { gap: 10px; }
  .mosaic-item--wide, .mosaic-item--tall { grid-column: span 1; grid-row: span 1; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-item .stat-num { font-size: 1.5rem; }
  .hero { min-height: 75vh; padding-top: var(--header-h); }
  .hero h1 { font-size: clamp(1.6rem, 6vw, 2.2rem); }
  .hero p { font-size: 0.95rem; }
  .hero-cta { flex-direction: column; width: 100%; }
  .hero-cta .btn { width: 100%; }
  .hero-page--bg { padding: 88px 0 56px; }
  .hero-page--bg h1 { font-size: clamp(1.5rem, 5.5vw, 2rem); }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .mobile-cta-bar { display: flex; }
  .whatsapp-float {
    bottom: calc(76px + env(safe-area-inset-bottom));
    right: 16px;
    width: 54px;
    height: 54px;
  }
  .whatsapp-float svg { width: 28px; height: 28px; }
  body { padding-bottom: calc(70px + env(safe-area-inset-bottom)); }
  .guarantee-bar { flex-direction: column; text-align: center; gap: 16px; }
  .product-detail-img > img { height: 260px; }
  .product-detail-content .btn {
    width: 100%;
    min-height: 48px;
    justify-content: center;
  }
  .product-thumb-row { gap: 8px; }
  .product-thumb { width: 56px; height: 56px; }
  .article-hero-img { height: 220px; }
  .article-content { font-size: 0.95rem; }
  .compare-table { font-size: 0.85rem; }
  .compare-table th, .compare-table td { padding: 12px 10px; }
  .contact-modal {
    align-items: flex-end;
    padding: 0;
  }
  .contact-modal-panel {
    max-width: 100%;
    border-radius: 20px 20px 0 0;
    padding: 24px 20px max(24px, env(safe-area-inset-bottom));
    animation: modalSlideUp 0.3s ease;
  }
  .contact-modal-panel::before {
    content: '';
    display: block;
    width: 40px;
    height: 4px;
    background: var(--steel-dark);
    border-radius: 2px;
    margin: -8px auto 16px;
  }
  @keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(100%); }
    to { opacity: 1; transform: translateY(0); }
  }
  .contact-option { padding: 16px; }
  .contact-option-copy { padding: 10px 14px; font-size: 0.8rem; }
  .copy-toast { bottom: calc(90px + env(safe-area-inset-bottom)); }
  .showcase-strip img { width: 200px; height: 140px; }
  .app-card img { height: 180px; }
  .cta-grid { gap: 32px; }
  .quote-form { padding: 28px 20px; }
  .product-nav { margin-left: -16px; margin-right: -16px; padding-left: 16px; padding-right: 16px; }
  .pictureSlider.poster-main, .poster-list { height: 360px; }
  .poster-item { width: 220px; }
  .lightbox { padding: 48px 12px 32px; }
  .lightbox-nav { width: 44px; height: 44px; font-size: 1.6rem; }
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
  .lightbox-stage { max-height: 70vh; }
  .lightbox-stage img { max-height: 70vh; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .quote-form { padding: 24px 16px; }
  .poster-item { width: 180px; }
  .feature-card--premium { padding: 16px; gap: 0 12px; }
  .btn { padding: 12px 20px; }
  .btn-lg { padding: 14px 24px; }
}