body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: #0a162e;
  background-color: #ffffff;
}
header {
  background-color: #0a2a47;
  color: white;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header h1 {
  font-size: 1.5rem;
}
nav a {
  color: white;
  margin-left: 1.5rem;
  text-decoration: none;
  font-weight: 500;
}
.hero {
  background-color: #0a2a47;
  color: white;
  text-align: center;
  padding: 4rem 2rem;
}
.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
.hero p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}
.hero button {
  background-color: #38c172;
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
}
section {
  padding: 3rem 2rem;
  max-width: 1000px;
  margin: auto;
}
section h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.card {
  flex: 1 1 30%;
  background-color: #f1f5f9;
  padding: 1.5rem;
  border-radius: 8px;
}
.card h4 {
  margin-top: 0;
  color: #0a2a47;
}
.tech-list {
  list-style: none;
  padding: 0;
}
.tech-list li::before {
  content: "\2713";
  color: #38c172;
  margin-right: 0.5rem;
}
footer {
  background-color: #0a2a47;
  color: white;
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
}