*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #4f46e5;--primary-light: #818cf8;--primary-dark: #3730a3;--accent: #06b6d4;--accent-light: #67e8f9;--gray-50: #f8fafc;--gray-100: #f1f5f9;--gray-200: #e2e8f0;--gray-300: #cbd5e1;--gray-400: #94a3b8;--gray-500: #64748b;--gray-600: #475569;--gray-700: #334155;--gray-800: #1e293b;--gray-900: #0f172a;--radius: 8px;--max-width: 1100px}html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:17px;line-height:1.7;color:var(--gray-800);background:var(--gray-50);scroll-behavior:smooth}body{min-height:100vh;display:flex;flex-direction:column}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-dark);text-decoration:underline}img{max-width:100%;height:auto}.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}header{background:#fff;border-bottom:1px solid var(--gray-200);padding:1rem 0;position:sticky;top:0;z-index:100}header .container{display:flex;align-items:center;justify-content:space-between}header .logo{font-size:1.35rem;font-weight:700;color:var(--gray-900)}header .logo:hover{text-decoration:none;color:var(--primary)}header nav{display:flex;gap:1.5rem;font-size:.9rem}header nav a{color:var(--gray-600);font-weight:500}header nav a:hover{color:var(--primary);text-decoration:none}footer{margin-top:auto;background:#fff;border-top:1px solid var(--gray-200);padding:2rem 0;text-align:center;font-size:.85rem;color:var(--gray-500)}.hero{background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);color:#fff;padding:4rem 0;text-align:center}.hero h1{font-size:2.5rem;font-weight:800;margin-bottom:1rem;line-height:1.2}.hero p{font-size:1.15rem;opacity:.9;max-width:600px;margin:0 auto}.section{padding:3rem 0}.section h2{font-size:1.75rem;font-weight:700;color:var(--gray-900);margin-bottom:.5rem}.section .subtitle{color:var(--gray-500);margin-bottom:2rem}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}.card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius);padding:1.5rem;transition:box-shadow .2s,border-color .2s}.card:hover{box-shadow:0 4px 12px #00000014;border-color:var(--primary-light)}.card h3{font-size:1.1rem;font-weight:600;margin-bottom:.5rem;color:var(--gray-900)}.card .tag{display:inline-block;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:.2rem .6rem;border-radius:4px;background:var(--gray-100);color:var(--gray-600);margin-bottom:.75rem}.card p{font-size:.9rem;color:var(--gray-600);line-height:1.5}.card .meta{font-size:.8rem;color:var(--gray-400);margin-top:1rem}.article-content{max-width:750px;margin:0 auto;padding:2rem 0}.article-content h1{font-size:2rem;font-weight:800;color:var(--gray-900);margin-bottom:.5rem;line-height:1.3}.article-content .article-meta{color:var(--gray-500);font-size:.9rem;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--gray-200)}.article-content h2{font-size:1.4rem;font-weight:700;color:var(--gray-900);margin-top:2.5rem;margin-bottom:1rem}.article-content h3{font-size:1.15rem;font-weight:600;color:var(--gray-800);margin-top:1.75rem;margin-bottom:.75rem}.article-content p{margin-bottom:1.25rem;color:var(--gray-700)}.article-content ul,.article-content ol{margin-bottom:1.25rem;padding-left:1.5rem}.article-content li{margin-bottom:.35rem;color:var(--gray-700)}.article-content strong{color:var(--gray-900)}.article-content blockquote{border-left:4px solid var(--primary-light);padding-left:1rem;margin:1.5rem 0;color:var(--gray-600);font-style:italic}.article-sidebar{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius);padding:1.5rem;margin:2rem 0}.article-sidebar h3{font-size:1rem;font-weight:700;color:var(--gray-900);margin-bottom:1rem}.article-sidebar table{width:100%;font-size:.9rem}.article-sidebar td{padding:.4rem 0;color:var(--gray-700)}.article-sidebar td:first-child{font-weight:600;color:var(--gray-500);width:30%;padding-right:1rem}.cta-button{display:inline-block;background:var(--primary);color:#fff;padding:.7rem 1.5rem;border-radius:var(--radius);font-weight:600;font-size:.9rem;transition:background .2s}.cta-button:hover{background:var(--primary-dark);color:#fff;text-decoration:none}.pricing-badge{display:inline-flex;align-items:center;gap:.3rem;font-size:.8rem;padding:.25rem .75rem;border-radius:100px;background:#dcfce7;color:#166534}.pricing-badge.premium{background:#fef3c7;color:#92400e}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin:2rem 0}@media(max-width:768px){html{font-size:15px}.hero h1{font-size:1.75rem}.grid,.compare-grid{grid-template-columns:1fr}header nav{gap:.75rem;font-size:.8rem}}