:root{--primary:#5A67D8;--accent:#E53E3E;--bg-body:#F7FAFC;--bg-card:#FFFFFF;--text-main:#2D3748;--text-muted:#718096;--border-color:#E2E8F0;--font-sans:'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono:'JetBrains Mono', 'Menlo', 'Courier New', monospace;--transition:all 0.3s ease;--shadow:0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);--radius:0.5rem;--max-width:1200px}@media(prefers-color-scheme:dark){:root{--bg-body:#1A202C;--bg-card:#2D3748;--text-main:#EDF2F7;--text-muted:#A0AEC0;--border-color:#4A5568;--primary:#7F9CF5;--accent:#F56565;--shadow:0 4px 6px -1px rgba(0, 0, 0, 0.5)}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-body);color:var(--text-main);line-height:1.6;-webkit-font-smoothing:antialiased}img{max-width:100%;border-radius:var(--radius)}a{color:var(--primary);text-decoration:none;transition:var(--transition)}a:hover{text-decoration:underline;color:var(--accent)}.app-container{display:flex;min-height:100vh;max-width:var(--max-width);margin:0 auto;padding:1rem}.sidebar{width:250px;flex-shrink:0;padding:2rem 1rem;border-right:1px solid var(--border-color)}.main-content{flex-grow:1;padding:2rem;overflow-x:hidden}@media(max-width:768px){.app-container{flex-direction:column}.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border-color)}}.site-title{font-size:1.5rem;font-weight:700;margin-bottom:1.5rem;color:var(--text-main);display:block}.nav-links{list-style:none}.nav-links li{margin-bottom:.75rem}.nav-links a{display:block;padding:.1rem;border-radius:var(--radius);color:var(--text-muted)}.nav-links a:hover,.nav-links a.active{background-color:var(--bg-card);color:var(--primary);font-weight:600}.landing-hero{text-align:center;padding:1.5rem 1rem;background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1rem}.profile-img{width:150px;height:150px;border-radius:50%;object-fit:cover;margin-bottom:1.5rem;border:4px solid var(--primary)}.hero-title{font-size:2rem;margin-bottom:.5rem;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero-subtitle{font-size:1rem;color:var(--text-muted);max-width:600px;margin:0 auto}.cta-button{display:inline-block;background-color:var(--primary);color:#fff!important;padding:.5rem;border-radius:50px;font-weight:600;text-decoration:none!important;transition:transform .2s ease}.cta-button:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px rgba(90,103,216,.4)}.blog-list{display:grid;gap:2rem}.blog-card{background:var(--bg-card);padding:1rem;border-radius:var(--radius);border:1px solid var(--border-color);transition:var(--transition)}.blog-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)}.blog-meta{font-size:.875rem;color:var(--text-muted);margin-bottom:.5rem;display:flex;gap:1rem}.blog-title{font-size:1rem;font-weight:700;margin-bottom:.75rem}.blog-summary{color:var(--text-muted);font-size:1rem}.post-header{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.post-title{font-size:2.5rem;font-weight:800;margin-bottom:1rem;line-height:1.2}.post-content{font-size:1rem;max-width:600px}.post-content h2{font-size:1rem;margin:2rem 0 1rem;color:var(--text-main)}.post-content p{margin-bottom:1.5rem}.post-content code{background:var(--bg-body);padding:.2rem .4rem;border-radius:4px;font-family:var(--font-mono);font-size:.9em;color:var(--accent)}.post-content pre{background:#2d3748;color:#f7fafc;padding:1.5rem;border-radius:var(--radius);overflow-x:auto;margin-bottom:2rem}.post-content pre code{color:inherit;background:0 0;padding:0}.newsletter-section{background:var(--bg-card);padding:3rem;border-radius:var(--radius);text-align:center;margin-top:4rem;border:1px solid var(--border-color)}.newsletter-form{display:flex;gap:1rem;max-width:500px;margin:1.5rem auto 0}.input-field{flex:1;padding:.75rem;border:1px solid var(--border-color);border-radius:var(--radius);font-size:1rem}.submit-btn{background-color:var(--primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:var(--radius);font-weight:600;cursor:pointer}.tag{display:inline-block;background:var(--bg-body);padding:.25rem .75rem;border-radius:1rem;font-size:.75rem;color:var(--text-muted);border:1px solid var(--border-color);margin-right:.5rem}.category-badge{font-weight:700;text-transform:uppercase;font-size:.75rem;letter-spacing:.05em;padding:.25rem .5rem;border-radius:4px}.cat-what{background:#ebf8ff;color:#2b6cb0}.cat-how{background:#f0fff4;color:#2f855a}.cat-why{background:#faf5ff;color:#805ad5}@media(prefers-color-scheme:dark){.cat-what{background:#2a4365;color:#90cdf4}.cat-how{background:#22543d;color:#9ae6b4}.cat-why{background:#553c9a;color:#d6bcfa}}