:root{--primary-color: #007bff;--text-color: #333;--text-muted: #6c757d;--bg-color: #fff;--bg-accent: #f8f9fa;--card-bg: #fff;--border-color: #dee2e6;--success-color: #28a745;--header-bg: #fff;--footer-bg: #f8f9fa}:root[data-theme=dark]{--primary-color: #4d9fff;--text-color: #e1e1e1;--text-muted: #a0a0a0;--bg-color: #1a1a1a;--bg-accent: #2d2d2d;--card-bg: #2d2d2d;--border-color: #404040;--success-color: #2fb344;--header-bg: #2d2d2d;--footer-bg: #2d2d2d}.content-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-top:2rem}.content-section h3{color:var(--text-color);margin-bottom:1rem}.content-cards{display:grid;gap:1rem}