:root {
  --primary-color: #3498db;
  --secondary-color: #2c3e50;
  --background-color: #ecf0f1;
  --text-color: #34495e;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  margin: 0;
  padding: 0;
  background-color: var(--background-color);
}
.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  overflow: hidden;
  padding: 20px;
}
header {
  background: var(--primary-color);
  color: #fff;
  padding: 1rem 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
nav ul {
  display: flex;
  list-style: none;
  padding: 0;
}
nav ul li {
  margin-left: 20px;
}
nav a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}
#hero {
  background: linear-gradient(rgba(52, 152, 219, 0.8), rgba(52, 152, 219, 0.8)),
    url("/api/placeholder/1200/400");
  background-size: cover;
  color: #fff;
  text-align: center;
  padding: 4rem 0;
}
#hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.btn {
  display: inline-block;
  background: var(--secondary-color);
  color: #fff;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
}
.btn:hover {
  background-color: #34495e;
}
section {
  padding: 5px 0;
}
h2 {
  color: var(--primary-color);
}
.card {
  background: #fff;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
footer {
  background: var(--secondary-color);
  color: #fff;
  text-align: center;
  padding: 1rem 0;
  margin-top: 2rem;
}