* { 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; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 2rem 0; text-align: center; }
header h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.hero { text-align: center; padding: 3rem 0; }
.hero h2 { font-size: 2rem; margin-bottom: 1rem; }
.categories { padding: 2rem 0; }
.category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; margin-top: 1.5rem; }
.category-card { background: #f8f9fa; padding: 2rem; border-radius: 10px; text-decoration: none; color: #333; transition: transform 0.3s; }
.category-card:hover { transform: translateY(-5px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
footer { background: #333; color: white; text-align: center; padding: 2rem 0; margin-top: 3rem; }