:root {
  --color-primary: #1b5e20;
  --color-secondary: #2e7d32;
  --color-dark: #121212;
  --color-gray: #f5f5f5;
  --color-text: #2c2c2c;
  --transition: 0.3s ease;
}

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

body {
  font-family: "Poppins", sans-serif;
  color: var(--color-text);
  background-color: #ffffff;
  line-height: 1.6;
  padding-top: 80px;
}

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

a {
  text-decoration: none;
  color: inherit;
}

.container {
  width: min(90%, 1200px);
  margin: 0 auto;
}

header {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.55)),
    url("assets/img/hero.jpeg") center/cover no-repeat fixed;
  color: #ffffff;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 5vw;
  background-color: rgba(18, 18, 18, 0.9);
  backdrop-filter: blur(6px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 1px;
}

.brand img {
  height: 46px;
  width: auto;
  display: block;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: #ffffff;
  font-weight: 500;
  position: relative;
  transition: color var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition);
}

.nav-links a:hover::after,
.nav-links a:focus::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #ffffff;
  transition: transform var(--transition), opacity var(--transition);
}

.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 72px);
  padding: 0 5vw;
  text-align: center;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 4vw, 4rem);
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  margin-bottom: 2rem;
  font-weight: 300;
}

.btn {
  display: inline-block;
  background: var(--color-primary);
  color: #ffffff;
  padding: 0.9rem 2.5rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(27, 94, 32, 0.35);
}

.section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.about {
  background-color: #ffffff;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.about-text p {
  margin-bottom: 1.2rem;
}

.about-image img {
  border-radius: 12px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.products {
  background: var(--color-gray);
}

.services {
  background: #ffffff;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: #0e1f18;
  color: #ffffff;
  border-radius: 14px;
  padding: 2rem;
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.12);
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 36px rgba(0, 0, 0, 0.18);
}

.service-card h3 {
  margin-bottom: 0.75rem;
  color: #c5e1a5;
}

.sectors {
  background: linear-gradient(135deg, #1b5e20, #0c2216);
  color: #ffffff;
}

.sector-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.tag {
  padding: 0.65rem 1.5rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-weight: 600;
  letter-spacing: 0.4px;
  transition: background-color var(--transition), transform var(--transition);
}

.tag:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-3px);
}

.benefits {
  background: #ffffff;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.benefit-card {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  padding: 1.75rem;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
  transition: transform var(--transition), box-shadow var(--transition);
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.12);
}

.benefit-card h3 {
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.commitment {
  text-align: center;
  font-weight: 600;
  color: var(--color-dark);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.product-card {
  background-color: #ffffff;
  border-radius: 14px;
  padding: 1.5rem;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
  transition: transform var(--transition), box-shadow var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 35px rgba(0, 0, 0, 0.12);
}

.product-image {
  height: 160px;
  margin-bottom: 1.5rem;
  border-radius: 10px;
  overflow: hidden;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
  position: relative;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.4s ease;
}

.product-image img:not(.loaded) {
  opacity: 0;
}

.product-image img.loaded {
  opacity: 1;
}

.product-image:has(img.loaded) {
  background: none;
  animation: none;
}

.product-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-secondary);
}

.product-card p {
  font-size: 0.95rem;
  color: #555555;
}

.product-docs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.doc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition), transform var(--transition);
}

.doc-link:hover {
  color: var(--color-secondary);
  transform: translateX(4px);
}

.doc-link span {
  font-size: 1.1rem;
}

.gallery-section {
  margin-bottom: 4rem;
}

.gallery-section h3 {
  font-size: 1.75rem;
  margin-bottom: 2rem;
  color: var(--color-primary);
  text-align: center;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.gallery-item {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  transition: transform var(--transition), box-shadow var(--transition);
  aspect-ratio: 1;
  max-width: 280px;
  margin: 0 auto;
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
  position: relative;
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-item img.loaded {
  opacity: 1;
}

.gallery-item:has(img.loaded) {
  background: none;
  animation: none;
}

.clients {
  background: linear-gradient(135deg, #0c1b13, #173822);
  color: #ffffff;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.client-card {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: background-color var(--transition), transform var(--transition);
}

.client-card:hover {
  background-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-4px);
}

.contact {
  background: #ffffff;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3rem;
}

.contact-form {
  background: var(--color-gray);
  padding: 2.5rem;
  border-radius: 18px;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.contact-form h2 {
  margin-bottom: 1.5rem;
  color: var(--color-primary);
}

.contact-form p {
  margin-bottom: 1.5rem;
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #128c7e, #25d366);
  box-shadow: 0 12px 24px rgba(18, 140, 126, 0.35);
}

.whatsapp-btn:hover {
  box-shadow: 0 18px 32px rgba(18, 140, 126, 0.45);
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  font-size: 0.95rem;
  background-color: #ffffff;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(27, 94, 32, 0.12);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.info-block {
  background: #0e1f18;
  color: #ffffff;
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.info-block h3 {
  margin-bottom: 1rem;
  color: #aed581;
}

.map-placeholder iframe {
  border: none;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.footer {
  background: #0c0c0c;
  color: #b5b5b5;
  padding: 2rem 0;
  text-align: center;
  font-size: 0.9rem;
}

.floating-whatsapp {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #128c7e, #25d366);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 35px rgba(18, 140, 126, 0.4);
  transition: transform var(--transition), box-shadow var(--transition);
  z-index: 1100;
}

.floating-whatsapp svg {
  width: 28px;
  height: 28px;
  fill: #ffffff;
}

.floating-whatsapp:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 24px 40px rgba(18, 140, 126, 0.5);
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 992px) {
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 600px;
  }
  
  .gallery-item {
    max-width: 100%;
  }

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

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem 1.5rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    right: 1.5rem;
    flex-direction: column;
    gap: 1.25rem;
    background: rgba(18, 18, 18, 0.95);
    padding: 1.5rem;
    border-radius: 12px;
    min-width: 200px;
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .product-grid,
  .clients-grid,
  .services-grid,
  .benefit-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  header {
    background-attachment: scroll;
  }
}

@media (max-width: 576px) {
  .hero {
    padding: 0 10vw;
  }

  .contact-form {
    padding: 2rem 1.5rem;
  }

  .info-block {
    padding: 1.75rem;
  }
}