body{font-family:Arial,sans-serif;line-height:1.6;margin:0;background-color:#f8f9fa;color:#343a40;display:flex;flex-direction:column;min-height:100vh}header{background-color:#fff;padding:1rem 2rem;border-bottom:1px solid #dee2e6;box-shadow:0 2px 4px rgba(0,0,0,.05);display:flex;justify-content:space-between;align-items:center}header .logo{font-size:1.8rem;font-weight:bold;color:#0056b3;text-decoration:none}nav ul{list-style:none;margin:0;padding:0;display:flex}nav li{margin-left:20px}nav a{text-decoration:none;color:#0056b3;font-weight:bold;padding:5px 10px;border-radius:5px;transition:background-color .3s,color .3s}nav a:hover,nav a.active{background-color:#0056b3;color:#fff}.container{width:90%;max-width:1000px;margin:2rem auto;flex:1}article{background-color:#fff;padding:2rem;border-radius:8px;box-shadow:0 2px 5px rgba(0,0,0,.07)}h1,h2,h3,h4{color:#0056b3}h1{font-size:2.2rem;border-bottom:2px solid #f0f0f0;padding-bottom:10px;margin-bottom:20px}h2{font-size:1.8rem;margin-top:40px}h3{font-size:1.5rem}h4{font-size:1.2rem}a{color:#007bff;text-decoration:none}a:hover{text-decoration:underline}img.featured-image{max-width:100%;height:auto;border-radius:8px;margin-bottom:1.5rem;box-shadow:0 4px 8px rgba(0,0,0,.1)}#toc{background-color:#e9ecef;padding:15px;border-radius:5px;margin-bottom:2rem;border-left:4px solid #007bff}#toc ul{list-style-type:none;padding-left:0}#toc li{margin-bottom:10px}#toc a{text-decoration:none;font-weight:bold}blockquote{border-left:4px solid #ccc;padding-left:20px;margin-left:0;font-style:italic;color:#6c757d}cite{display:block;margin-top:10px;text-align:right;font-weight:bold}ul,ol{padding-left:20px}footer{background-color:#343a40;color:#fff;text-align:center;padding:1.5rem;margin-top:2rem}footer p{margin:0}footer a{color:#adb5bd}footer a:hover{color:#fff}@media (max-width:768px){header{flex-direction:column;align-items:flex-start}nav ul{flex-direction:column;width:100%;margin-top:1rem}nav li{margin-left:0;margin-bottom:10px;width:100%}nav a{display:block;text-align:center}article{padding:1.5rem}}