* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  min-height: 100vh;
  color: #333;
}
.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}
.app-header {
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 16px;
  margin-bottom: 30px;
  box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
}
.app-header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}
.app-header p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}
.app-main {
  display: grid;
  gap: 30px;
}
section {
  background: white;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
section h2 {
  margin-bottom: 20px;
  color: #667eea;
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.skill-card {
  padding: 20px;
  border: 2px solid #eee;
  border-radius: 10px;
  transition: all 0.3s;
}
.skill-card:hover {
  border-color: #667eea;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
}
.skill-card h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}
.skill-card p {
  color: #666;
  font-size: 0.9rem;
  margin-bottom: 12px;
}
.badge {
  display: inline-block;
  padding: 4px 12px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 20px;
  font-size: 0.75rem;
  text-transform: uppercase;
}
.info-section ul {
  list-style: none;
}
.info-section li {
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}
.info-section li:last-child {
  border-bottom: none;
}
footer {
  text-align: center;
  padding: 30px;
  color: #999;
  font-size: 0.9rem;
}