/* Extracted from index.html to enable strict CSP without style 'unsafe-inline' */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background: #f5f5f5; }
.header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 2rem; text-align: center; }
.container { max-width: 1200px; margin: 0 auto; padding: 2rem; }
.search-box { margin: 2rem 0; text-align: center; }
.search-box input { padding: 1rem; width: 300px; border: 1px solid #ddd; border-radius: 25px; font-size: 1rem; }
.search-box button { padding: 1rem 2rem; margin-left: 1rem; background: #667eea; color: white; border: none; border-radius: 25px; cursor: pointer; }
.cultures-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 2rem; margin: 2rem 0; }
.culture-card { background: white; border-radius: 10px; padding: 1.5rem; box-shadow: 0 4px 6px rgba(0,0,0,0.1); transition: transform 0.3s; }
.culture-card:hover { transform: translateY(-5px); }
.culture-name { font-size: 1.5rem; font-weight: bold; color: #333; margin-bottom: 0.5rem; }
.culture-region { color: #666; margin-bottom: 1rem; }
.culture-languages { font-size: 0.9rem; color: #888; margin-bottom: 1rem; }
.culture-overview { color: #555; line-height: 1.6; }
.loading { text-align: center; padding: 2rem; color: #666; }
.layer-selector { margin: 1rem 0; }
.layer-btn { padding: 0.5rem 1rem; margin: 0 0.5rem; background: #f0f0f0; border: 1px solid #ddd; border-radius: 20px; cursor: pointer; }
.layer-btn.active { background: #667eea; color: white; }