* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; background: #f5f7fa; color: #333; line-height: 1.6; }
header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: #fff; padding: 2rem 0; text-align: center; }
header h1 { font-size: 2.2rem; margin-bottom: 0.5rem; }
header p { font-size: 1.1rem; opacity: 0.9; }
nav { background: #2d3748; padding: 0.8rem 2rem; display: flex; gap: 1.5rem; }
nav a { color: #e2e8f0; text-decoration: none; font-weight: 500; transition: color 0.2s; }
nav a:hover, nav a.active { color: #667eea; }
.container { max-width: 960px; margin: 2rem auto; padding: 0 1.5rem; }
.card { background: #fff; border-radius: 12px; box-shadow: 0 2px 12px rgba(0,0,0,0.08); padding: 2rem; margin-bottom: 1.5rem; }
.card h2 { color: #4a5568; margin-bottom: 1rem; }
.card p { color: #718096; }
.image-row { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-top: 1rem; }
.image-row img { border-radius: 8px; max-width: 280px; height: auto; }
footer { text-align: center; padding: 2rem; color: #a0aec0; font-size: 0.9rem; }