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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f5f5f5;
}

/* Header */
header {
  background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #667eea;
  text-decoration: none;
}

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

nav a {
  text-decoration: none;
  color: #666;
  transition: color 0.2s;
}

nav a:hover,
nav a.active {
  color: #667eea;
}

/* Main */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Hero */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 16px;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  opacity: 0.9;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.feature h3 {
  color: #667eea;
  margin-bottom: 0.5rem;
}

/* Content */
.content {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.content h1 {
  color: #667eea;
  margin-bottom: 1rem;
}

.content h2 {
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  color: #444;
}

.content ul,
.content ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.content li {
  margin-bottom: 0.5rem;
}

.contact-info {
  margin-top: 2rem;
  padding: 1rem;
  background: #f9f9f9;
  border-radius: 8px;
}

.contact-info p {
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: #666;
  margin-top: 2rem;
}