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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.navbar {
  padding: 1rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
}

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

.nav-links a {
  color: white;
  text-decoration: none;
  transition: opacity 0.3s;
}

.nav-links a:hover {
  opacity: 0.8;
}

main {
  min-height: calc(100vh - 200px);
}

section {
  padding: 4rem 0;
  border-bottom: 1px solid #eee;
}

.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-align: center;
  padding: 6rem 0;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
}

.btn {
  background: white;
  color: #667eea;
  border: none;
  padding: 12px 30px;
  font-size: 1rem;
  border-radius: 5px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  font-weight: bold;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.about {
  background: #f9f9f9;
}

.about h2,
.contact h2 {
  margin-bottom: 1.5rem;
  font-size: 2rem;
  color: #667eea;
}

.about p,
.contact p {
  margin-bottom: 1rem;
  line-height: 1.8;
}

footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 2rem 0;
}

@media (max-width: 768px) {
  .navbar .container {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .hero h2 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }
}