:root {
  --primary-blue: #0066cc;
  --secondary-blue: #003366;
  --accent-blue: #4d94ff;
  --white: #ffffff;
  --light-gray: #f5f5f5;
  --dark-gray: #333333;
  --transition-speed: 0.3s;
  --font-family: 'Roboto', sans-serif;
  --hero-gradient: linear-gradient(135deg, #0066cc, #4d94ff);
  --overlay-color: rgba(0, 0, 0, 0.5);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--dark-gray);
  background: var(--light-gray);
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.main-header {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--white);
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  z-index: 1000;
  transition: background var(--transition-speed) ease, padding var(--transition-speed) ease;
  padding: 1rem 0;
}
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}
.logo-img {
  height: auto;
  width: 150px; 
}
.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}
.nav-menu a {
  text-decoration: none;
  color: var(--dark-gray);
  font-weight: 500;
  position: relative;
  transition: color var(--transition-speed) ease;
}
.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary-blue);
}
.nav-menu a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background-color: var(--primary-blue);
  transition: width 0.4s ease;
}
.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.mobile-menu-btn span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--dark-gray);
  margin: 5px 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: var(--hero-gradient);
  color: var(--white);
  text-align: center;
  padding-top: 80px;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay-color);
  z-index: 1;
}
.hero-slider {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 800px;
  margin-bottom: 2rem;
  height: 250px;
}
.hero-slider .slide {
  opacity: 0;
  position: absolute;
  width: 100%;
  left: 0;
  top: 0;
  transition: opacity 1s ease, transform 1s ease;
  transform: translateY(20px);
}
.hero-slider .slide.active {
  opacity: 1;
  transform: translateY(0);
  position: relative;
}
.hero-slider h1 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.4);
}
.hero-slider p {
  font-size: 1.2rem;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.4);
}
.cta-buttons {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 1rem;
  justify-content: center;
}
.cta-primary,
.cta-secondary {
  padding: 1rem 2rem;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cta-primary {
  background: var(--white);
  color: var(--primary-blue);
}
.cta-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}
.cta-primary:hover,
.cta-secondary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.2);
}
section {
  padding: 5rem 0;
  background: var(--white);
  transition: background 0.3s ease;
}
section:nth-of-type(even) {
  background: var(--light-gray);
}
section h2 {
  font-size: 2.5rem;
  color: var(--secondary-blue);
  margin-bottom: 1rem;
  text-align: center;
}
.section-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 2rem;
  color: var(--dark-gray);
}
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
.solution-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.solution-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.service-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}
.service-card i {
  font-size: 3rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}
.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.industry-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.industry-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}
.industry-card i {
  font-size: 3rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
}
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.about-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.about-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}
.cta-section {
  background: var(--hero-gradient);
  color: var(--white);
  text-align: center;
  padding: 4rem 0;
}
.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.cta-section p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}
.main-footer {
  background: var(--secondary-blue);
  color: var(--white);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-grid h3 {
  margin-bottom: 1rem;
}
.footer-contact p,
.footer-links a {
  color: var(--white);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  transition: color var(--transition-speed) ease;
}
.footer-links ul {
  list-style: none;
  padding: 0;
}
.footer-links a:hover {
  color: var(--accent-blue);
}
.footer-social .social-links {
  display: flex;
  gap: 1rem;
}
.footer-social .social-links a {
  color: var(--white);
  font-size: 1.5rem;
  transition: transform 0.3s ease, color 0.3s ease;
}
.footer-social .social-links a:hover {
  transform: scale(1.1);
  color: var(--accent-blue);
}
.copyright {
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1rem;
  font-size: 0.8rem;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.fade-in {
  animation: fadeIn 0.6s ease forwards;
}
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  }
  .nav-menu.active {
    display: flex;
  }
  .nav-menu li {
    margin: 1rem 0;
  }
  .hero-slider h1 {
    font-size: 2rem;
  }
  .cta-buttons {
    flex-direction: column;
  }
}