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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #ffffff  ;
  background-color: #303030;
}

header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 2rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
}


.content {
  background: #303030;
  padding: 3rem;
  border-radius: 8px;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

h2 {
  color: #667eea;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.5rem;
  border-bottom: 2px solid #667eea;
  padding-bottom: 0.5rem;
}

h2:first-child {
  margin-top: 0;
}

h3 {
  color: #667eea;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

p {
  margin-bottom: 1rem;
  text-align: justify;
}

ul {
  margin-left: 2rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.5rem;
}

strong {
  color: #667eea;
  font-weight: 600;
}

.highlight {
  background-color: #303030;
  padding: 1rem;
  border-left: 4px solid #667eea;
  margin: 1.5rem 0;
  border-radius: 4px;
}

footer {
  text-align: center;
  padding: 2rem;
  color: #ffffff;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .content {
    padding: 1.5rem;
  }

  header h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.3rem;
  }
}