* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', sans-serif;
}

body {
  background-image: linear-gradient(-225deg, #FFFEFF 0%, #D7FFFE 100%);
  color: #333;
  line-height: 1.6;
}

/* Navigation Bar */
.navbar {
  background-image: linear-gradient(60deg, #3d3393 0%, #2b76b9 37%, #2cacd1 65%, #35eb93 100%);
  padding: 1rem 2rem;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  color: #fff;
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
}

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

.nav-links li a {
  color: #fff;
  text-decoration: none;
  font-weight: 400;
  transition: color 0.3s ease;
}

.nav-links li a:hover {
  color: #0c0c0cfa;
  cursor: pointer;
}

/* Hamburger Menu for Mobile */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: #fff;
  margin: 2px 0;
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero Section */
.hero {
  height: 100vh;
  background-image: linear-gradient(120deg, #a1c4fd 0%, #c2e9fb 100%);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: 0 2rem;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.cta-button {
  padding: 0.8rem 2rem;
  background-color: #ffd700;
  color: #1a3c34;
  text-decoration: none;
  font-weight: 700;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}

.cta-button:hover {
  background-color: #e6c200;
}

/* Sections */
.section {
  padding: 5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  text-align: center;
  color: #1a3c34;
}

.section p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  text-align: justify;
}

.image-container {
  text-align: center;
  margin: 2rem 0;
}

.image-container img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.image-container figcaption {
  margin-top: 0.5rem;
  font-style: italic;
  color: #666;
}

.applications, .challenges, .trends {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background-color: #fff;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #1a3c34;
}

/* Footer */
footer {
  background-image: linear-gradient(60deg, #3d3393 0%, #2b76b9 37%, #2cacd1 65%, #35eb93 100%);
  color: #fff;
  padding: 2rem;
  text-align: center;
}

footer p {
  margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
      display: none;
      flex-direction: column;
      position: absolute;
      top: 60px;
      left: 0;
      width: 100%;
      background-color: #1a3c34;
      padding: 1rem 0;
  }

  .nav-links.active {
      display: flex;
  }

  .hamburger {
      display: flex;
  }

  .hero-content h1 {
      font-size: 2rem;
  }

  .hero-content p {
      font-size: 1rem;
  }

  .section h2 {
      font-size: 2rem;
  }
}