.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  background: rgba(247, 245, 242, 0.88);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  width: auto;
  height: 2.4rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-text);
}

.nav-item--dropdown {
  position: relative;
}

.nav-item--dropdown::after {
  content: "";
  position: absolute;
  top: 100%;
  left: -0.5rem;
  right: -0.5rem;
  height: 1rem;
  z-index: 109;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0;
  border: none;
  background: none;
  cursor: pointer;
  font: inherit;
  line-height: 1;
}

.nav-dropdown-icon {
  display: block;
  flex-shrink: 0;
  transform: translateY(1px);
  transition: transform var(--transition);
}

.nav-item--dropdown.is-open .nav-dropdown-icon {
  transform: translateY(1px) rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  min-width: 15rem;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 110;
}

.nav-item--dropdown.is-open .nav-dropdown,
.nav-item--dropdown:hover .nav-dropdown,
.nav-item--dropdown:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-dropdown__link {
  display: block;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
}

.nav-dropdown__link:hover,
.nav-dropdown__link.is-active {
  background: rgba(var(--color-accent-rgb), 0.08);
  color: var(--color-accent);
}

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

.menu-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
}

.menu-toggle__bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 1.125rem;
  height: 0.875rem;
  margin: 0 auto;
}

.menu-toggle__bars span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transform-origin: center;
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bars span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  padding-top: var(--header-height);
  overflow: hidden;
  color: #fff;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-slide.is-active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 20, 20, 0.35) 0%, rgba(20, 20, 20, 0.72) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-block: var(--space-4xl) var(--space-3xl);
}

.hero-content p {
  margin-top: var(--space-lg);
  max-width: 36rem;
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.88);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.hero-dots {
  position: absolute;
  right: var(--space-xl);
  bottom: var(--space-2xl);
  z-index: 3;
  display: flex;
  gap: 0.5rem;
}

.hero-dot {
  width: 0.55rem;
  height: 0.55rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
}

.hero-dot.is-active {
  background: #fff;
  transform: scale(1.2);
}

.section-head {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.services-grid,
.materials-grid,
.why-grid {
  display: grid;
  gap: var(--space-lg);
}

.services-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.materials-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.why-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.why-card {
  padding: var(--space-xl);
}

.why-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--color-accent);
  line-height: 1;
}

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

.gallery-item {
  position: relative;
  border: none;
  padding: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  background: none;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.04);
}

.gallery-masonry {
  columns: 3 280px;
  column-gap: var(--space-md);
}

.gallery-masonry .gallery-item {
  display: block;
  width: 100%;
  margin-bottom: var(--space-md);
  break-inside: avoid;
}

.gallery-masonry .gallery-item img {
  aspect-ratio: auto;
}

.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.cta-band {
  background: var(--color-dark);
  color: #fff;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  padding-block: var(--space-2xl);
}

.cta-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 500;
}

.cta-inner p {
  margin-top: var(--space-sm);
  color: rgba(255, 255, 255, 0.72);
}

.cta-inner .hero-actions {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-md);
  flex-shrink: 0;
}

.cta-inner .hero-actions .btn {
  justify-content: center;
}

.page-hero {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  background: linear-gradient(180deg, var(--color-bg-alt), var(--color-bg));
}

.page-hero .section-lead {
  margin-top: var(--space-md);
}

.site-footer {
  margin-top: 0;
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.82);
}

.footer-main {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-2xl);
  padding-block: var(--space-3xl);
}

.footer-logo {
  display: block;
  width: auto;
  height: 2.4rem;
  margin-left: -1.15rem;
  filter: brightness(0) invert(1);
}

.footer-brand > a {
  display: block;
  line-height: 0;
}

.footer-tagline {
  margin-top: var(--space-md);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.35;
}

.footer-about {
  margin-top: var(--space-md);
  max-width: 22rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.footer-social__link {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.85);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.footer-social__link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.footer-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.footer-links {
  margin-top: var(--space-md);
  display: grid;
  gap: 0.6rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.72);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-contact-list {
  margin-top: var(--space-md);
  display: grid;
  gap: var(--space-md);
}

.footer-contact-list li {
  display: grid;
  gap: 0.2rem;
}

.footer-contact__label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.38);
}

.footer-contact-list a,
.footer-contact-list span {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.45;
}

.footer-contact-list a:hover {
  color: #fff;
}

.footer-bottom {
  background: rgba(0, 0, 0, 0.22);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding-block: var(--space-lg);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.42);
}

.footer-badge {
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.55);
}

.floating-actions {
  position: fixed;
  right: var(--space-lg);
  bottom: var(--space-lg);
  z-index: 90;
  display: grid;
  gap: var(--space-sm);
}

.float-btn {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  color: #fff;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition);
}

.float-btn:hover {
  transform: scale(1.06);
}

.float-whatsapp {
  background: #25d366;
}

.float-phone {
  background: var(--color-accent);
}

@media (max-width: 1023px) {
  .services-grid,
  .why-grid,
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    gap: var(--space-xl);
  }

  .footer-brand {
    grid-column: span 2;
  }

  .materials-grid,
  .gallery-preview {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 767px) {
  .materials-grid,
  .gallery-preview,
  .services-grid {
    grid-template-columns: 1fr;
  }

  .hero-dots {
    right: auto;
    left: 50%;
    transform: translateX(-50%);
  }

  .gallery-masonry {
    columns: 1;
  }

  .gallery-filters {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
  }

  .gallery-filters .filter-btn {
    width: 100%;
    padding: 0.7rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: span 1;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
}