/**
 * TRISENSA CERAMICS — MAIN LAYOUT & SECTIONS
 * Modern Industrial Editorial Architecture
 */

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 500;
  background-color: rgba(249, 248, 245, 0.70);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(225, 220, 210, 0.65);
  box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.8), 0 4px 24px -2px rgba(28, 27, 25, 0.05);
  transition: background-color var(--transition-base), backdrop-filter var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.site-header.scrolled {
  background-color: rgba(249, 248, 245, 0.84);
  backdrop-filter: blur(24px) saturate(190%);
  -webkit-backdrop-filter: blur(24px) saturate(190%);
  border-bottom-color: rgba(215, 208, 196, 0.8);
  box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.95), 0 8px 30px -4px rgba(28, 27, 25, 0.08);
}

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

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  min-width: 0;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
  transition: height var(--transition-fast);
}

.brand-tagline-wrap {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--color-border);
  padding-left: var(--space-md);
  white-space: nowrap;
}

.brand-tagline {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand-heritage-pill {
  font-family: var(--font-family-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--color-brand-red);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main-nav {
  display: none;
}

@media (min-width: 1080px) {
  .main-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1 1 auto;
    margin: 0 clamp(0.75rem, 1.8vw, 2.25rem);
    gap: clamp(0.75rem, 1.35vw, 1.45rem);
  }
}

.nav-link {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: relative;
  padding: 0.45rem 0.2rem;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

@media (min-width: 1280px) {
  .nav-link {
    font-size: 0.84rem;
    letter-spacing: 0.035em;
    padding: 0.45rem 0.3rem;
  }
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-brand-red);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-brand-red);
  border-radius: 2px;
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  border: 1px solid rgba(215, 210, 200, 0.7);
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
  overflow: hidden;
  padding: 2px;
}

.lang-btn {
  padding: 0.35rem 0.65rem;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.lang-btn:hover:not(.active) {
  color: var(--color-text-primary);
  background-color: var(--color-hover-overlay);
}

.lang-btn.active {
  background-color: var(--color-text-primary);
  color: #FFFFFF;
}

/* Mobile Hamburger */
.mobile-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  color: var(--color-text-primary);
  cursor: pointer;
}

@media (min-width: 1080px) {
  .mobile-nav-toggle {
    display: none;
  }
}

/* Header Responsive Optimization */
@media (max-width: 768px) {
  .site-header-inner {
    gap: var(--space-xs);
  }

  .brand-wrapper {
    gap: var(--space-xs);
  }

  .brand-tagline-wrap {
    display: none;
  }

  .brand-logo-img {
    height: 32px;
    max-width: 150px;
  }

  .header-actions {
    gap: 0.5rem;
    flex-shrink: 0;
  }

  .mobile-nav-toggle {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
  }
}

@media (max-width: 380px) {
  .brand-logo-img {
    height: 28px;
    max-width: 125px;
  }

  .lang-btn {
    padding: 0.25rem 0.5rem;
    font-size: 11px;
  }

  .mobile-nav-toggle {
    width: 36px;
    height: 36px;
  }
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  background-color: rgba(24, 23, 22, 0.6);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.mobile-drawer.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-content {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(85vw, 360px);
  background-color: var(--color-bg-canvas);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-modal);
  overflow-y: auto;
}

.mobile-drawer.open .mobile-drawer-content {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.mobile-drawer-link {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--color-text-primary);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-drawer-link.active {
  color: var(--color-brand-red);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: var(--space-3xl) 0 var(--space-4xl);
  background-color: var(--color-bg-canvas);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 0.8fr 1.2fr;
    gap: clamp(2.5rem, 4vw, 3.75rem);
  }
}

@media (min-width: 1200px) {
  .hero-grid {
    grid-template-columns: 0.74fr 1.26fr;
  }
}

.hero-badge {
  margin-bottom: var(--space-md);
}

.hero-title {
  margin-bottom: var(--space-md);
  font-size: clamp(2rem, 3.2vw, 2.85rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.hero-subtitle {
  font-size: clamp(0.95rem, 1.1vw, 1.05rem);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
  max-width: 480px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.hero-stat-item strong {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-text-primary);
  font-family: var(--font-family-mono);
  overflow-wrap: break-word;
}

.hero-stat-item span {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  overflow-wrap: break-word;
}

@media (max-width: 768px) {
  .hero-section {
    padding: var(--space-xl) 0 var(--space-2xl);
  }
}

@media (max-width: 640px) {
  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .hero-cta-group .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-stats {
    gap: 0.5rem;
    padding-top: var(--space-md);
  }

  .hero-stat-item strong {
    font-size: 1.15rem;
  }

  .hero-stat-item span {
    font-size: 10px;
    letter-spacing: 0.02em;
    line-height: 1.25;
  }
}

@media (max-width: 420px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .hero-stat-item {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
  }

  .hero-stat-item strong {
    min-width: 75px;
  }
}

.hero-visual-frame {
  position: relative;
  border-radius: var(--radius-md, 10px);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 20px 48px -8px rgba(0, 0, 0, 0.2), 0 8px 20px -4px rgba(0, 0, 0, 0.1);
  aspect-ratio: 4 / 3;
  width: 100%;
  background-color: #1a1918;
  user-select: none;
}

.hero-carousel-track {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-carousel-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.85s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.85s ease;
  z-index: 1;
}

.hero-carousel-slide.is-active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.hero-carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.05);
  transition: transform 6.5s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.hero-carousel-slide.is-active img {
  transform: scale(1);
}

.hero-visual-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 3rem 1.5rem 1.25rem;
  background: linear-gradient(180deg, rgba(18, 17, 16, 0) 0%, rgba(18, 17, 16, 0.55) 35%, rgba(18, 17, 16, 0.94) 100%);
  color: #FFFFFF;
  font-size: var(--font-size-xs, 0.8125rem);
  line-height: 1.4;
  z-index: 3;
  pointer-events: none;
}

.hero-visual-caption strong {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #FFFFFF;
  margin-bottom: 2px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.hero-visual-caption div {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.8rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

/* Navigation Arrow Controls */
.hero-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(18, 17, 16, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  padding: 0;
}

.hero-carousel:hover .hero-carousel-btn,
.hero-carousel:focus-within .hero-carousel-btn {
  opacity: 0.92;
  pointer-events: auto;
}

.hero-carousel-btn:hover {
  background: var(--color-primary, #C8102E);
  border-color: var(--color-primary, #C8102E);
  color: #FFFFFF;
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 4px 14px rgba(200, 16, 46, 0.4);
}

.hero-carousel-btn:active {
  transform: translateY(-50%) scale(0.96);
}

.hero-carousel-prev {
  left: 14px;
}

.hero-carousel-next {
  right: 14px;
}

/* Indicators / Dots */
.hero-carousel-dots {
  position: absolute;
  bottom: 14px;
  right: 18px;
  z-index: 10;
  display: flex;
  gap: 7px;
  align-items: center;
  padding: 4px 8px;
  background: rgba(18, 17, 16, 0.35);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.45);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-carousel-dot:hover {
  background: rgba(255, 255, 255, 0.85);
}

.hero-carousel-dot.is-active {
  width: 22px;
  background: #FFFFFF;
}

@media (max-width: 768px) {
  .hero-carousel-btn {
    opacity: 0.85;
    pointer-events: auto;
    width: 34px;
    height: 34px;
  }
  .hero-carousel-prev {
    left: 8px;
  }
  .hero-carousel-next {
    right: 8px;
  }
  .hero-visual-caption {
    padding: 2.25rem 1rem 0.85rem;
  }
  .hero-carousel-dots {
    bottom: 10px;
    right: 12px;
  }
}

/* ==========================================================================
   Section Layouts
   ========================================================================== */
.section {
  padding: var(--space-4xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.section-alt {
  background-color: var(--color-bg-surface-alt);
}

.section-dark {
  background-color: var(--color-bg-dark);
  color: #FFFFFF;
  border-bottom-color: var(--color-border-dark);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: #FFFFFF;
}

.section-dark p {
  color: var(--color-text-inverse-muted);
}

.section-header {
  margin-bottom: var(--space-3xl);
  max-width: 780px;
}

.section-header.text-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-pretitle {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-brand-red);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
  display: block;
  overflow-wrap: break-word;
  word-break: break-word;
  max-width: 100%;
}

.section-dark .section-pretitle {
  color: #FF5A65;
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-desc {
  font-size: var(--font-size-md);
  line-height: 1.6;
}

/* ==========================================================================
   Grids
   ========================================================================== */
.grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.grid-4 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
}

@media (min-width: 640px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* Prevent any grid child from blowing out column boundaries */
.grid-2 > *,
.grid-3 > *,
.grid-4 > *,
.hero-grid > *,
.product-divisions-grid > *,
.product-detail-grid > *,
.contact-grid > *,
.footer-top-grid > *,
.footer-grid > * {
  min-width: 0;
  max-width: 100%;
}

/* ==========================================================================
   Product Divisions (trisensaceramics.com Style)
   ========================================================================== */
.product-divisions-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2xl);
}

@media (max-width: 900px) {
  .product-divisions-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

.division-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

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

.division-card-media {
  position: relative;
  width: 100%;
  aspect-ratio: 542 / 353;
  overflow: hidden;
  background-color: var(--color-bg-canvas);
  border-bottom: 1px solid var(--color-border);
}

.division-card-media a {
  display: block;
  width: 100%;
  height: 100%;
}

.division-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.division-card:hover .division-card-img {
  transform: scale(1.04);
}

.division-card-body {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.division-card-title {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.division-card-title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.division-card-title a:hover {
  color: var(--color-brand-red);
}

.division-subcat-links {
  font-size: var(--font-size-sm);
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.division-subcat-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  border-bottom: 1px dotted rgba(0, 0, 0, 0.25);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.division-subcat-links a:hover {
  color: var(--color-brand-red);
  border-bottom-color: var(--color-brand-red);
}

.division-card-action {
  margin-top: auto;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-subtle);
}

.division-action-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.division-action-link svg {
  transition: transform var(--transition-fast);
}

.division-action-link:hover {
  color: var(--color-brand-red);
}

.division-action-link:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   Crafting Excellence (3 Pillars)
   ========================================================================== */
.pillar-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.pillar-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--color-bg-surface-alt);
}

.pillar-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.pillar-card:hover .pillar-media img {
  transform: scale(1.04);
}

.pillar-body {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.pillar-number {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xs);
  color: var(--color-brand-red);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.pillar-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.pillar-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Document Hub Banner
   ========================================================================== */
.resource-banner {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  padding: var(--space-3xl) var(--space-2xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
  overflow: hidden;
}

@media (min-width: 992px) {
  .resource-banner {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.resource-banner-cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.resource-banner-features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.resource-feature-pill {
  padding: var(--space-md);
  background-color: var(--color-bg-canvas);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  min-width: 0;
  overflow-wrap: break-word;
  word-break: break-word;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.resource-feature-pill strong {
  display: block;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-2xs);
  color: var(--color-text-primary);
}

.resource-feature-pill span {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}

@media (max-width: 768px) {
  .resource-banner {
    padding: var(--space-xl) var(--space-md);
    gap: var(--space-xl);
  }

  .resource-banner-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }

  .resource-banner-cta-group .btn {
    width: 100%;
    white-space: normal;
    text-align: center;
    justify-content: center;
    padding: 0.85rem 1rem;
  }
}

@media (max-width: 576px) {
  .resource-banner {
    padding: 1.5rem 1rem;
    gap: 1.5rem;
  }

  .resource-banner-features {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .resource-feature-pill {
    padding: 0.875rem 1rem;
  }
}

/* ==========================================================================
   Product Detail Layout
   ========================================================================== */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-4xl);
}

@media (min-width: 992px) {
  .product-detail-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.product-gallery-main {
  aspect-ratio: 4 / 3;
  background-color: var(--color-bg-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.product-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-gallery-thumbs {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
}

.thumb-btn {
  width: 80px;
  height: 80px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xs);
  overflow: hidden;
  cursor: pointer;
  background: transparent;
  padding: 0;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}

.thumb-btn.active,
.thumb-btn:hover {
  border-color: var(--color-brand-red);
}

.thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info-panel {
  display: flex;
  flex-direction: column;
}

.product-detail-code {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-brand-red);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.product-detail-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: var(--space-md);
  line-height: 1.15;
}

.product-detail-tagline {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  font-weight: 500;
  line-height: 1.5;
}

.product-detail-desc {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.product-action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-2xl);
}

/* ==========================================================================
   Contact & Lead Generation
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
}

@media (min-width: 992px) {
  .contact-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.contact-form-panel {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-card);
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.contact-branch-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  padding: var(--space-xl);
}

.contact-branch-title {
  font-size: var(--font-size-md);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.contact-branch-detail {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-bg-dark);
  color: #FFFFFF;
  padding: var(--space-4xl) 0 var(--space-xl);
  margin-top: auto;
  border-top: 1px solid var(--color-border-dark);
}

.site-footer-logo {
  height: 34px;
  width: auto;
  max-width: 100%;
  margin-bottom: var(--space-md);
  display: block;
  object-fit: contain;
}

.footer-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-inverse-muted);
  line-height: 1.6;
}

.footer-kemenperin-wrap {
  margin-top: 1.5rem;
}

.footer-kemenperin-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #FFFFFF;
  padding: 6px 12px;
  border-radius: var(--radius-xs, 4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
  text-decoration: none;
  transition: transform var(--transition-fast, 0.2s ease), box-shadow var(--transition-fast, 0.2s ease), opacity var(--transition-fast, 0.2s ease);
}

.footer-kemenperin-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  opacity: 0.95;
}

.footer-kemenperin-logo {
  height: 40px;
  width: auto;
  max-width: 100%;
  display: block;
  object-fit: contain;
}

.footer-top-grid,
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid var(--color-border-dark);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer-top-grid,
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  }
}

.footer-col-title {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
  color: #FFFFFF;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-inverse-muted);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ==========================================================================
   Comprehensive Mobile & Tablet Responsive Optimizations
   ========================================================================== */
@media (max-width: 768px) {
  .product-action-bar {
    gap: 0.75rem;
    padding: var(--space-lg) 0;
  }

  .footer-top-grid,
  .footer-grid {
    gap: var(--space-xl);
    padding-bottom: var(--space-2xl);
    margin-bottom: var(--space-xl);
  }
}

@media (max-width: 640px) {
  /* Headings & Typography Clamps */
  h1, .hero-title {
    font-size: clamp(1.85rem, 7vw, 2.35rem) !important;
    line-height: 1.15;
  }

  h2, .section-title {
    font-size: clamp(1.35rem, 5.2vw, 1.85rem) !important;
    line-height: 1.2;
  }

  h3 {
    font-size: clamp(1.15rem, 4.2vw, 1.35rem);
    line-height: 1.25;
  }

  /* Section Buttons Full Width on Small Screens to Prevent Layout Blowout */
  .section .grid-2 > div > .btn,
  .section-dark .btn,
  .product-action-bar .btn {
    width: 100%;
    justify-content: center;
  }

  .product-action-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    padding: var(--space-md) 0;
  }

  .product-detail-title {
    font-size: clamp(1.5rem, 6vw, 1.95rem);
  }

  .thumb-btn {
    width: 64px;
    height: 64px;
  }

  .contact-form-panel {
    padding: var(--space-lg);
  }

  .contact-branch-card {
    padding: var(--space-lg);
  }

  .contact-branch-detail {
    font-size: var(--font-size-xs);
  }

  .contact-branch-detail span {
    word-break: break-word;
    overflow-wrap: break-word;
    min-width: 0;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* ==========================================================================
   Floating WhatsApp Action Button (All Pages - Redundancy Safeguard)
   ========================================================================== */
.floating-whatsapp {
  position: fixed !important;
  bottom: 28px !important;
  right: 28px !important;
  z-index: 9999 !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 10px;
  text-decoration: none !important;
  cursor: pointer;
  user-select: none;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.floating-whatsapp:hover {
  transform: translateY(-3px) scale(1.05);
}

.floating-whatsapp:focus-visible {
  outline: 3px solid #25D366;
  outline-offset: 4px;
  border-radius: 50%;
}

.floating-whatsapp-btn {
  width: 58px !important;
  height: 58px !important;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%) !important;
  color: #FFFFFF !important;
  border-radius: 50% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  position: relative;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.42), 0 2px 6px rgba(0, 0, 0, 0.12) !important;
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.floating-whatsapp:hover .floating-whatsapp-btn {
  box-shadow: 0 6px 22px rgba(37, 211, 102, 0.6), 0 4px 10px rgba(0, 0, 0, 0.16) !important;
  background: linear-gradient(135deg, #28e26e 0%, #159b8b 100%) !important;
}

.floating-whatsapp-btn svg {
  width: 32px !important;
  height: 32px !important;
  fill: #FFFFFF !important;
}

.floating-whatsapp-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.65);
  opacity: 0;
  animation: wa-pulse 3s infinite ease-out;
  pointer-events: none;
}

@keyframes wa-pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.22); opacity: 0; }
  100% { transform: scale(1.22); opacity: 0; }
}

.floating-whatsapp-tooltip {
  background: #192024;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 8px 14px;
  border-radius: 20px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.floating-whatsapp:hover .floating-whatsapp-tooltip,
.floating-whatsapp:focus-visible .floating-whatsapp-tooltip {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 768px) {
  .floating-whatsapp {
    bottom: 20px !important;
    right: 20px !important;
  }
  .floating-whatsapp-btn {
    width: 52px !important;
    height: 52px !important;
  }
  .floating-whatsapp-btn svg {
    width: 28px !important;
    height: 28px !important;
  }
  .floating-whatsapp-tooltip {
    display: none !important;
  }
}

/* ==========================================================================
   Heritage Spotlight (About Us) — Dominant Visual Showcase
   ========================================================================== */
.heritage-spotlight-section {
  padding: var(--space-4xl) 0;
  background-color: var(--color-bg-canvas);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.heritage-spotlight-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 992px) {
  .heritage-spotlight-grid {
    grid-template-columns: 0.76fr 1.24fr;
    gap: clamp(2.5rem, 4vw, 4rem);
    align-items: center;
  }
}

@media (min-width: 1200px) {
  .heritage-spotlight-grid {
    grid-template-columns: 0.7fr 1.3fr;
  }
}

.heritage-spotlight-content {
  max-width: 500px;
}

.heritage-spotlight-content .section-title {
  margin-bottom: var(--space-md);
  font-size: clamp(1.85rem, 2.8vw, 2.4rem);
  line-height: 1.15;
}

.heritage-spotlight-content p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.heritage-spotlight-content p:last-of-type {
  margin-bottom: var(--space-xl);
}

.heritage-spotlight-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.heritage-spotlight-visual {
  position: relative;
  border-radius: var(--radius-md, 12px);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 20px 48px -10px rgba(0, 0, 0, 0.18), 0 8px 24px -4px rgba(0, 0, 0, 0.08);
  background-color: var(--color-bg-surface);
  width: 100%;
}

.heritage-spotlight-img,
.heritage-spotlight-video {
  width: 100%;
  aspect-ratio: 16 / 10;
  display: block;
  border: 0;
}

.heritage-spotlight-img {
  object-fit: cover;
  transform: scale(1);
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.heritage-spotlight-visual:hover .heritage-spotlight-img {
  transform: scale(1.02);
}

.heritage-spotlight-caption {
  padding: 1.1rem 1.5rem;
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.heritage-spotlight-caption strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* ==========================================================================
   Architectural Lookbook (Inspiration Page) — Dominant Visual Showcase
   ========================================================================== */
.lookbook-showcase-section {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg, 16px);
  padding: clamp(1.75rem, 3.5vw, 3rem);
  margin-bottom: var(--space-3xl);
  overflow: hidden;
}

.lookbook-showcase-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 992px) {
  .lookbook-showcase-grid {
    grid-template-columns: 0.75fr 1.25fr;
    gap: clamp(2rem, 3.5vw, 3.5rem);
    align-items: center;
  }
}

@media (min-width: 1200px) {
  .lookbook-showcase-grid {
    grid-template-columns: 0.7fr 1.3fr;
  }
}

.lookbook-showcase-content {
  max-width: 520px;
}

.lookbook-showcase-content .lookbook-pretitle {
  display: inline-block;
  font-family: var(--font-family-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-brand-red);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.lookbook-showcase-content h2 {
  font-size: clamp(1.45rem, 2.3vw, 2.1rem);
  line-height: 1.22;
  margin: 0 0 1rem 0;
  color: var(--color-text-primary);
}

.lookbook-showcase-content p {
  color: var(--color-text-secondary);
  font-size: 14.5px;
  line-height: 1.65;
  margin-bottom: 1.75rem;
}

.lookbook-showcase-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.lookbook-showcase-visual {
  position: relative;
  border-radius: var(--radius-md, 12px);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 20px 48px -10px rgba(0, 0, 0, 0.16), 0 8px 24px -4px rgba(0, 0, 0, 0.08);
  background-color: var(--color-bg-surface);
  width: 100%;
}

.lookbook-showcase-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  min-height: 340px;
  max-height: 480px;
  object-fit: cover;
  display: block;
  transform: scale(1);
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.lookbook-showcase-visual:hover .lookbook-showcase-img {
  transform: scale(1.025);
}