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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  overflow-x: hidden;
}

.page {
  display: none;
  width: 100%;
  min-height: 100%;
  animation: fadeIn 0.5s ease-in;
}

.page.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Header & Navigation */
header {
  background: white;
  color: #1a1a1a;
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  width: 100%;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
}

.logo a {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.logo a:hover {
  opacity: 0.8;
}

.logo img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

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

nav a {
  color: #1a1a1a;
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

nav a:hover, nav a.active {
  background: rgba(0, 102, 204, 0.1);
  color: #0066cc;
  transform: translateY(-2px);
}

/* Language Switcher */
.language-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 1rem;
}

.language-switcher .lang-link {
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  color: #1a1a1a;
  font-size: 0.9rem;
}

.language-switcher .lang-link:hover {
  background: rgba(0, 102, 204, 0.1);
  color: #0066cc;
}

.language-switcher .lang-link.active {
  background: rgba(0, 102, 204, 0.15);
  color: #0066cc;
  font-weight: 600;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: #1a1a1a;
  font-size: 1.5rem;
  cursor: pointer;
}

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

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: #1a1a1a;
  font-weight: 700;
}

/* Footer */
footer {
  background: #1a1a1a;
  color: white;
  padding: 3rem 2rem 1.5rem;
  text-align: center;
  width: 100%;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: white;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #0066cc;
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-social a:hover {
  background: #0066cc;
  transform: translateY(-3px);
}

.footer-social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
}

/* WhatsApp Floating Button */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 20px;
  right: 20px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 2px 2px 3px #999;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.3s ease;
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 2px 2px 8px #666;
}

.whatsapp-float svg {
  width: 35px;
  height: 35px;
  fill: currentColor;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-wrap: wrap;
  }
  
  nav {
    display: none;
    width: 100%;
    order: 3;
  }
  
  nav.mobile-open {
    display: block;
  }
  
  nav ul {
    flex-direction: column;
    gap: 0;
    margin-top: 1rem;
  }
  
  nav a {
    display: block;
    padding: 1rem;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .features-grid,
  .services-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .whatsapp-float {
    width: 55px;
    height: 55px;
    bottom: 15px;
    right: 15px;
    font-size: 28px;
  }
  
  .whatsapp-float svg {
    width: 30px;
    height: 30px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }
  
  .logo {
    font-size: 1.4rem;
  }
  
  .logo img {
    height: 40px;
  }
}