/* Base Reset and Typography */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: #f9f9f9;
  color: #333;
  padding: 1rem;
}

/* Header */
header {
  text-align: center;
  padding: 2rem 1rem;
  background-color: #fff;
  border-bottom: 1px solid #ddd;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

header p {
  font-size: 1rem;
  color: #666;
}

/* Navigation */
nav ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
  margin: 1rem 0;
  padding: 0;
}

nav li {
  margin: 0.5rem;
}

nav a {
  text-decoration: none;
  color: #0077cc;
  font-weight: bold;
}

/* Main Content */
main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem;
}

.intro {
  text-align: center;
  margin-bottom: 2rem;
}

.features {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Feature Boxes */
.feature-box {
  background-color: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  text-align: center;
}

.feature-box h3 {
  margin-bottom: 1rem;
}

.feature-box .btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background-color: #0077cc;
  color: #fff;
  border-radius: 4px;
  text-decoration: none;
}

/* Footer */
footer {
  text-align: center;
  margin-top: 3rem;
  font-size: 0.9rem;
  color: #999;
}

/* Responsive Layout */
@media (min-width: 600px) {
  .features {
    flex-direction: row;
    justify-content: space-between;
  }

  .feature-box {
    flex: 1;
  }
}