html{scroll-padding-top:100px}.guide-breadcrumb{text-align:center;padding:12px 24px;font-size:14px;color:#64748b;background:#f8f9fa;border-bottom:1px solid #e2e8f0}.guide-breadcrumb a{color:#0d9488;text-decoration:none}.guide-breadcrumb a:hover{text-decoration:underline}.guide-hero{background:linear-gradient(135deg,#0a0a1a,#1a1a3e);padding:64px 24px 56px;text-align:center;border-radius:12px;margin-bottom:32px;margin-top:16px}.guide-hero h1{color:#fff;font-size:40px;font-weight:800;line-height:1.2;margin-bottom:16px;letter-spacing:-1px}.guide-hero p{color:#94a3b8;font-size:18px;max-width:600px;margin:0 auto}.content-grid{display:flex;gap:2rem;max-width:1200px;margin:0 auto}.toc-sidebar{display:none;width:280px;flex-shrink:0}.toc-sticky{position:sticky;top:9rem;max-height:calc(100vh - 12rem);overflow-y:auto;padding:1.25rem;background:#f5f7fa;border-radius:8px}.toc-mobile{display:block;margin-bottom:1rem}.calc-callout{display:block;margin:0 0 1.25rem;padding:14px 18px;border-radius:8px;background:#f0fdfa;border:1px solid #99f6e4;text-decoration:none}.calc-callout:hover{border-color:#0d9488}.calc-callout-label{display:block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#0f766e}.calc-callout-title{display:block;font-size:18px;font-weight:700;color:#134e4a}.calc-callout-blurb{display:block;font-size:14px;color:#475569}@media (min-width: 1024px){.content-grid{flex-direction:row-reverse}.toc-sidebar{display:block}.toc-mobile{display:none}}.content-main{flex:1;min-width:0;padding-bottom:48px}.guide-content{font-size:18px;line-height:1.7;color:#1a1a2e}.guide-content h2{font-size:28px;font-weight:700;margin:48px 0 16px;line-height:1.3;letter-spacing:-.5px}.guide-content h2:first-of-type{margin-top:24px}.guide-content h3{font-size:22px;font-weight:600;margin:32px 0 12px}.guide-content p{margin-bottom:16px}.guide-content a{color:#0d9488;text-decoration:none}.guide-content a:hover{text-decoration:underline}.guide-content ul,.guide-content ol{margin-bottom:16px;padding-left:1.5em}.guide-content li{margin-bottom:8px}.guide-content table{width:100%;border-collapse:collapse;margin:16px 0 24px;font-size:16px}.guide-content th{text-align:left;padding:12px 16px;background:#f1f5f9;font-weight:600;font-size:14px;color:#475569;border-bottom:2px solid #e2e8f0}.guide-content td{padding:12px 16px;border-bottom:1px solid #f1f5f9}.guide-content tr:nth-child(2n) td{background:#f9fafb}.guide-content img{max-width:100%;border-radius:8px;margin:16px 0}.guide-content blockquote{border-left:4px solid #0d9488;padding:16px 24px;margin:24px 0;background:#f0fdfa;border-radius:0 8px 8px 0}.formula-block{background:#f1f5f9;border:1px solid #e2e8f0;border-radius:8px;padding:20px 24px;font-size:20px;font-weight:600;text-align:center;margin:16px 0 24px;font-family:monospace}.key-takeaway{background:#f0fdfa;border-left:4px solid #0d9488;padding:20px 24px;margin:24px 0;border-radius:0 8px 8px 0}.key-takeaway p{margin:0}.guide-content .tldr-block{background:#f0fdfa;border-left:4px solid #0d9488;border-radius:0 8px 8px 0;padding:16px 20px;margin:24px 0;font-size:16px;line-height:1.6}.guide-content .cta-block{background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;padding:16px 20px;margin:32px 0;font-weight:600}.guide-content .cta-block p{margin:0}.related-guides ul{list-style:none;padding-left:0}.related-guides li{margin:0 0 10px;padding-left:0}.faq-item{border-bottom:1px solid #e2e8f0;padding:20px 0}.faq-item:last-child{border-bottom:none}.faq-q{font-weight:600;font-size:18px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.faq-q:after{content:"+";font-size:24px;color:#94a3b8;transition:transform .2s;flex-shrink:0;margin-left:16px}.faq-item.open .faq-q:after{content:"−"}.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;font-size:16px;color:#475569;line-height:1.7}.faq-item.open .faq-a{max-height:500px;padding-top:12px}.disclaimer{font-size:13px;color:#94a3b8;line-height:1.6;border-top:1px solid #e2e8f0;padding-top:32px;margin-top:48px}@media (max-width: 640px){.guide-hero{padding:40px 20px 36px}.guide-hero h1{font-size:28px}.guide-content{font-size:16px}.guide-content h2{font-size:24px;margin-top:36px}.bottom-cta-inner{padding:28px 20px}}.bottom-cta{max-width:860px;margin:48px auto;padding:0 24px}.bottom-cta-inner{background:linear-gradient(135deg,#0f172a,#1e3a5f);border-radius:12px;padding:40px 32px;text-align:center}.bottom-cta h3{color:#fff;font-size:24px;font-weight:700;margin:0 0 12px}.bottom-cta p{color:#94a3b8;font-size:16px;margin:0 0 20px;line-height:1.6}.bottom-cta a{display:inline-block;background:#0f172a;color:#f8fafc;padding:14px 32px;border-radius:8px;font-weight:600;text-decoration:none;font-size:17px;transition:background .2s;border:1px solid rgba(255,255,255,.15)}.bottom-cta a:hover{background:#182544}