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

body {
  font-family: 'Segoe UI', sans-serif;
  background: #f4f4f9;
  color: #333;
}

header {
  background: #0077b6;
  color: #fff;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo img {
  height: 40px;
  width: 40px;
}

.logo h1 {
  font-size: 1.5rem;
}

nav {
  position: relative;
}

.hamburger {
  font-size: 2rem;
  cursor: pointer;
  display: none;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
}

.nav-links li a {
  color: white;
  text-decoration: none;
  font-weight: 500;
}

.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: #caf0f8;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.btn {
  background: #0077b6;
  color: white;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
}

.products {
  padding: 2rem;
  text-align: center;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.product-card {
  background: white;
  border-radius: 10px;
  padding: 1rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.product-card img {
  max-width: 100%;
  border-radius: 10px;
}

.product-card h3 {
  margin-top: 0.5rem;
}

.product-card button {
  background: #0077b6;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  margin-top: 0.5rem;
  border-radius: 5px;
  cursor: pointer;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #03045e;
  color: white;
  margin-top: 2rem;
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    background: #0077b6;
    position: absolute;
    right: 0;
    top: 60px;
    width: 200px;
    padding: 1rem;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  }

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

  .nav-links li {
    margin: 0.5rem 0;
  }
}