:root{--cs-green:#00c853;--cs-red:#FF5252;--cs-radius:3px}.toc{background:var(--terminal-bg);border:1px solid var(--bg-border);border-radius:var(--cs-radius);padding:28px 28px 20px;margin:20px 0 48px}.toc-title{font-size:.75rem;color:var(--btc-orange);text-transform:uppercase;letter-spacing:.1em;margin-bottom:14px;display:flex;align-items:center;gap:8px}.toc-title::before{content:'>';color:var(--btc-orange)}.toc ol{list-style:none;counter-reset:toc;padding-left:0}.toc li{counter-increment:toc}.toc li a{display:flex;align-items:baseline;gap:10px;padding:5px 0;text-decoration:none;color:var(--text-secondary);font-size:.82rem;transition:color .15s;border-bottom:1px solid transparent}.toc li a:hover{color:var(--btc-orange)}.toc li a::before{content:counter(toc,decimal-leading-zero);color:var(--btc-orange);font-size:.72rem;font-weight:600;min-width:22px}.chapter{padding:52px 0 0;scroll-margin-top:72px}.chapter-label{font-size:.68rem;text-transform:uppercase;letter-spacing:.12em;color:var(--btc-orange);margin-bottom:6px;display:flex;align-items:center;gap:6px}.chapter-label::before{content:'#';opacity:.5}.chapter h2{font-size:clamp(1.15rem, 2.8vw, 1.55rem);font-weight:700;color:var(--text-primary);margin-bottom:20px;line-height:1.3}.chapter h3{font-size:clamp(.92rem, 2vw, 1.08rem);font-weight:600;color:var(--btc-orange);margin:32px 0 12px}.chapter p{margin-bottom:16px;font-size:.88rem;color:var(--text-secondary);line-height:1.8}.chapter p a{color:var(--btc-orange);text-decoration:underline;text-decoration-color:rgba(247,147,26,.3);text-underline-offset:3px;transition:text-decoration-color .2s}.chapter p a:hover{text-decoration-color:var(--btc-orange)}.chapter blockquote{border-left:3px solid var(--btc-orange);background:var(--terminal-bg);padding:16px 20px;margin:20px 0 24px;border-radius:0 var(--cs-radius) var(--cs-radius) 0}.chapter blockquote p{font-style:italic;color:var(--text-primary);margin-bottom:4px;font-size:.85rem}.chapter blockquote .bq-source,.chapter blockquote cite{display:block;font-size:.72rem;color:var(--text-muted);font-style:normal;margin-top:6px}.quote-featured{border-left:4px solid var(--cs-red);background:rgba(255,82,82,.06);padding:24px;margin:28px 0}.quote-featured p{font-size:.95rem;color:var(--cs-red);font-weight:500}.quote-contrast{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0}.quote-contrast blockquote{margin:0}.quote-contrast .q-then{border-left-color:var(--cs-red);background:rgba(255,82,82,.05)}.quote-contrast .q-then p{color:var(--cs-red)}.quote-contrast .q-now{border-left-color:var(--cs-green);background:rgba(0,200,83,.05)}.quote-contrast .q-now p{color:var(--cs-green)}.table-wrap{overflow-x:auto;margin:20px 0 28px}.chapter table caption{text-align:left;font-size:.78rem;color:var(--text-muted);padding-bottom:.5rem;text-transform:uppercase;letter-spacing:.07em}.chapter table,.details-body table{width:100%;border-collapse:collapse;font-size:.78rem;background:var(--terminal-bg);border:1px solid var(--bg-border)}.chapter thead,.details-body thead{background:rgba(247,147,26,.08)}.chapter th,.details-body th{color:var(--btc-orange);font-weight:600;text-align:left;padding:10px 14px;border-bottom:2px solid var(--btc-orange);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;white-space:nowrap}.chapter td,.details-body td{padding:9px 14px;border-bottom:1px solid var(--bg-border);color:var(--text-secondary);white-space:nowrap}.chapter tbody tr:nth-child(2n),.details-body tbody tr:nth-child(2n){background:rgba(255,255,255,.015)}.chapter tbody tr:hover,.details-body tbody tr:hover{background:rgba(247,147,26,.04)}.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:4px;margin:8px 0}.stat-box{background:var(--terminal-bg);border:1px solid var(--bg-border);border-radius:var(--cs-radius);padding:4px 6px;text-align:center}.stat-num{font-size:clamp(1rem, 2.5vw, 1.3rem);font-weight:700;color:var(--btc-orange);line-height:1.2}.stat-label{font-size:.62rem;color:var(--text-muted);margin-top:3px;text-transform:uppercase;letter-spacing:.06em}.chapter details{margin:20px 0;border:1px solid var(--bg-border);border-radius:var(--cs-radius);background:var(--bg-card)}.chapter summary{padding:16px 18px;min-height:44px;cursor:pointer;font-size:.82rem;font-weight:600;color:var(--btc-orange);user-select:none;list-style:none;display:flex;align-items:center;gap:8px}.chapter summary::before{content:'[+]';font-size:.75rem;font-weight:400}.chapter details[open] summary::before{content:'[-]'}.chapter summary::-webkit-details-marker{display:none}.details-body{padding:0 18px 18px}.takeaways{background:var(--terminal-bg);border:1px solid var(--btc-orange);border-radius:var(--cs-radius);padding:28px 28px 20px;margin:48px 0 32px}.takeaways h3{color:var(--btc-orange);margin:0 0 16px;font-size:.95rem}.takeaways ol{padding-left:20px}.takeaways li{margin-bottom:12px;font-size:.84rem;color:var(--text-secondary);line-height:1.7}.takeaways li strong{color:var(--text-primary)}.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:48px 0 32px;font-size:.8rem}.prev-next a{display:block;padding:18px 16px;background:var(--bg-card);border:1px solid var(--bg-border);border-radius:var(--cs-radius);text-decoration:none;transition:border-color .2s}.prev-next a:hover{border-color:var(--btc-orange)}.pn-label{font-size:.68rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}.pn-title{color:var(--btc-orange);font-weight:600}.pn-placeholder{opacity:.4;cursor:default;pointer-events:none}.timeline{position:relative;padding-left:28px;margin:24px 0 32px}.timeline::before{content:'';position:absolute;left:8px;top:0;bottom:0;width:2px;background:var(--bg-border-light)}.tl-item{position:relative;margin-bottom:18px}.tl-item::before{content:'';position:absolute;left:-24px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--btc-orange);border:2px solid var(--bg-primary)}.tl-date{font-size:.72rem;color:var(--btc-orange);font-weight:600;margin-bottom:2px}.tl-text{font-size:.82rem;color:var(--text-secondary);line-height:1.6}.section-hr{border:none;border-top:1px solid var(--bg-border);margin:48px 0 0}.source-cite{font-size:.72rem;color:var(--text-muted)}.source-cite a{color:var(--text-muted);text-decoration:underline;text-decoration-color:rgba(255,255,255,.15)}.source-cite a:hover{color:var(--btc-orange)}@media (max-width:768px){.chapter{padding:40px 0 0}.takeaways{padding:24px 20px 16px}.prev-next{grid-template-columns:1fr}}@media (max-width:600px){.quote-contrast{grid-template-columns:1fr}}.video-attribution{margin:1.5rem 0;padding:1.25rem 1.5rem;background:var(--terminal-bg);border:1px solid var(--bg-border);border-radius:var(--cs-radius);font-size:.88rem;line-height:1.7}.video-attribution strong{color:var(--text-primary)}.update-log{margin:2rem 0;padding:1.25rem 1.5rem;background:rgba(255,255,255,.02);border:1px solid var(--bg-border);border-radius:var(--cs-radius)}.update-log h3{margin-top:0;font-size:1rem;color:var(--text-muted)}.update-log ul{margin:0;padding-left:1.25rem;list-style:disc}.update-log li{font-size:.84rem;color:var(--text-secondary);line-height:1.7;margin-bottom:.35rem}.update-log li strong{color:var(--text-primary)}@media (max-width:500px){.toc{padding:20px 16px 14px}.stats-row{grid-template-columns:1fr 1fr}.chapter blockquote{padding:12px 14px}.takeaways{padding:20px 16px 14px}.prev-next{grid-template-columns:1fr}}