.selfdb{--paper:#faf9f6;--ink:#202c2b;--muted:#5b6a67;--line:#dcded7;--teal:#076f64;--mint:#e8f1eb;--amber:#815315;background:var(--paper);color:var(--ink);min-height:100vh;font-family:var(--font-geist-sans),Arial,sans-serif;font-size:16px;line-height:1.65}.selfdb *{box-sizing:border-box}.selfdb a{color:inherit;text-underline-offset:4px}.selfdb p{margin:0 0 1em}.selfdb h1,.selfdb h2,.selfdb h3{letter-spacing:-.04em;text-wrap:balance;font-weight:550;line-height:1.12}.selfdb h1{max-width:950px;margin:18px 0 24px;font-size:clamp(2.6rem,6.4vw,5rem)}.selfdb h2{margin:0 0 22px;font-size:clamp(1.7rem,3.5vw,2.55rem)}.selfdb h3{letter-spacing:-.02em;margin:0 0 14px;font-size:1.2rem}.selfdb button,.selfdb summary{cursor:pointer;font:inherit}.selfdb a:focus-visible,.selfdb button:focus-visible,.selfdb summary:focus-visible,.selfdb input:focus-visible{outline:3px solid var(--teal);outline-offset:5px}.article-wrap{max-width:1120px;margin:auto;padding:0 48px}.chapter-nav{flex-wrap:wrap;gap:25px;padding:25px 0 20px;font-size:12px;display:flex}.chapter-nav a{color:var(--muted);border-bottom:2px solid #0000;padding-bottom:6px;text-decoration:none}.chapter-nav a[aria-current]{color:var(--teal);border-color:var(--teal)}.page-head{max-width:1000px;padding:50px 0 36px}.eyebrow{font-family:var(--font-geist-mono),monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-weight:500;font-size:11px!important}.lede{max-width:700px;color:var(--muted);font-size:clamp(1.05rem,2vw,1.25rem);line-height:1.6}.hero-highlight{color:var(--teal)}.byline{color:var(--muted);gap:18px;font-size:12px;display:flex}.hero-results{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr 1fr;margin:20px 0;padding:26px 0;display:grid}.hero-stat{border-left:1px solid var(--line);padding:3px 26px}.hero-stat:first-child{border:0;padding-left:0}.hero-stat strong{letter-spacing:-.055em;color:var(--teal);font-size:clamp(2rem,4.6vw,3.9rem);font-weight:500;line-height:1.2;display:block}.hero-stat span{margin-top:9px;font-size:13px;display:block}.caption,.selfdb figcaption{color:var(--muted);font-size:12px;line-height:1.6}.selfdb figcaption{margin-top:16px}.inline-link{text-decoration:underline;color:var(--teal)!important}.article-section{border-top:1px solid var(--line);padding:48px 0;scroll-margin-top:24px}.article-section>p{max-width:740px}.section-grid{grid-template-columns:1fr 1fr;gap:36px;display:grid}.article-section ul{padding-left:20px;list-style:outside}.article-section li{margin:8px 0}.loop-figure{margin:28px 0 0}.loop-nodes{grid-template-columns:1fr 32px 1fr 32px 1fr;align-items:center;display:grid}.loop-node{border:1px solid var(--line);background:#fffdf9;border-radius:7px;flex-direction:column;gap:12px;min-height:156px;padding:22px 19px;display:flex}.loop-node.physics{background:var(--mint);border-color:#b4cdbd}.node-number{font-family:var(--font-geist-mono),monospace;color:var(--teal);letter-spacing:.07em;font-size:10px}.loop-node strong{letter-spacing:-.02em;font-size:16px;font-weight:550;line-height:1.25}.loop-node>span:last-child{color:var(--muted);font-size:12px;line-height:1.5}.node-arrow{text-align:center;color:var(--teal)}.loop-return{border:1px solid var(--line);text-align:center;color:var(--teal);border-top:0;border-radius:0 0 14px 14px;margin:0 24px;padding:12px;font-size:12px}.loop-return>span{padding-right:6px;font-size:19px}.cards{grid-template-columns:repeat(2,1fr);gap:15px;display:grid}.chapter-card{border:1px solid var(--line);border-radius:7px;padding:25px;text-decoration:none;transition:background .16s,border-color .16s}.chapter-card:hover{background:var(--mint);border-color:#b4cdbd}.chapter-card h3{justify-content:space-between;display:flex}.chapter-card p{color:var(--muted);margin:0;font-size:14px}.card-index{font-family:var(--font-geist-mono),monospace;color:var(--teal);margin-bottom:19px;font-size:10px;display:block}.note{background:#f3eee4;border-left:3px solid #c9a26b;margin:24px 0;padding:18px 22px;font-size:14px}.note p:last-child{margin-bottom:0}.reflection-space{color:var(--muted);border:1px dashed #bec9c0;border-radius:7px;min-height:110px;padding:25px;font-size:14px}.reflection-space strong{color:var(--ink);font-weight:500}.research-footer{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;gap:20px;padding:35px 0 45px;font-size:11px;display:flex}.research-footer a{white-space:nowrap}.selfdb details{border-top:1px solid var(--line);padding:0}.selfdb details:last-child{border-bottom:1px solid var(--line)}.selfdb summary{align-items:baseline;gap:12px;padding:20px 0;font-size:15px;font-weight:500;list-style:none;display:flex}.selfdb summary::-webkit-details-marker{display:none}.selfdb summary:before{content:"+";color:var(--teal);flex-shrink:0;font-family:monospace}.selfdb details[open]>summary:before{content:"−"}.detail-body{padding:0 0 25px 24px;font-size:14px}.detail-body p{max-width:760px}.status{font-family:var(--font-geist-mono),monospace;text-transform:uppercase;letter-spacing:.04em;background:var(--mint);color:var(--teal);white-space:nowrap;border-radius:3px;margin-left:auto;padding:4px 7px;font-size:9px}.status.mixed{color:var(--amber);background:#f2e9dc}.table-scroll{border:1px solid var(--line);border-radius:6px;max-width:100%;margin:22px 0;overflow-x:auto}.selfdb table{border-collapse:collapse;font-variant-numeric:tabular-nums;text-align:left;width:100%;font-size:12px}.selfdb th{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);background:#efefe9;font-size:10px;font-weight:500}.selfdb td,.selfdb th{border-bottom:1px solid var(--line);vertical-align:top;padding:13px 15px}.selfdb tr:last-child td{border-bottom:0}.selfdb td.num{text-align:right;white-space:nowrap;font-family:var(--font-geist-mono),monospace}.selfdb caption{text-align:left;padding:12px;font-size:12px}.equation{background:#f0f2eb;border-radius:6px;margin:24px 0;padding:26px 24px;overflow-x:auto}.formula{text-align:center;white-space:nowrap;font-family:Georgia,Times New Roman,serif;font-size:clamp(19px,2.8vw,26px);line-height:2}.equation-label{color:var(--muted);text-align:center;margin-top:10px;font-size:11px;display:block}.fraction{vertical-align:middle;text-align:center;flex-direction:column;line-height:1.45;display:inline-flex}.fraction>span:first-child{border-bottom:1px solid var(--ink)}.selfdb sub,.selfdb sup{font-size:.65em}.tabs{flex-wrap:wrap;gap:5px;margin:20px 0;display:flex}.tabs button{border:1px solid var(--line);color:var(--muted);background:0 0;border-radius:4px;padding:9px 13px;font-size:12px}.tabs button[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}.chart-box{background:#f0f2eb;border-radius:7px;padding:22px}.chart-box svg{width:100%;height:auto;display:block}.chart-legend{color:var(--muted);flex-wrap:wrap;gap:20px;font-size:11px;display:flex}.legend-dot{background:var(--teal);border-radius:50%;width:8px;height:8px;margin-right:6px;display:inline-block}.legend-dot.gray{background:#909994}.metric-row{grid-template-columns:repeat(3,1fr);gap:20px;margin:26px 0;display:grid}.metric-tile{border-top:2px solid var(--teal);padding-top:15px}.metric-tile strong{color:var(--teal);letter-spacing:-.04em;font-size:30px;font-weight:500}.metric-tile span{font-size:12px;display:block}.metric-tile small{color:var(--muted);margin-top:8px;font-size:10px;display:block}.control-label{color:var(--muted);font-size:11px;margin:0!important}.download-links{flex-wrap:wrap;gap:12px;margin:20px 0;font-size:12px;display:flex}.download-links a{border:1px solid var(--line);border-radius:4px;padding:8px 12px;text-decoration:none}.download-links a:hover{background:var(--mint)}.cost-stack{border-radius:4px;height:22px;margin:20px 0;display:flex;overflow:hidden}.cost-key{flex-wrap:wrap;gap:18px;font-size:11px;display:flex}.cost-key i{width:8px;height:8px;margin-right:6px;display:inline-block}.run-summary{grid-template-columns:48px 1fr auto;width:100%;display:grid!important}.run-summary:before{display:none!important}.run-id{font-family:var(--font-geist-mono),monospace;color:var(--muted);font-size:10px}.run-price{font-family:var(--font-geist-mono),monospace;color:var(--teal);white-space:nowrap;font-size:12px}.run-price:after{content:" +";margin-left:8px}.selfdb details[open]>.run-summary .run-price:after{content:" −"}.receipt-grid{grid-template-columns:1fr 1fr;gap:10px;margin:20px 0;display:grid}.receipt-grid>div{background:#f0f2eb;border-radius:4px;padding:12px}.receipt-grid dt{color:var(--muted);text-transform:uppercase;font-size:10px}.receipt-grid dd{overflow-wrap:anywhere;margin-top:5px;font-size:12px}.run-tools{flex-wrap:wrap;gap:12px;margin:24px 0;display:flex}.run-tools input{border:1px solid var(--line);min-width:180px;font:inherit;background:0 0;border-radius:4px;flex:1;padding:9px 12px;font-size:13px}.run-tools button{border:1px solid var(--line);border-radius:4px;padding:8px 12px;font-size:12px}.token-bar{border-radius:5px;height:36px;margin:25px 0 15px;display:flex;overflow:hidden}.timeline-chart{min-width:640px}.skip-link{background:var(--ink);z-index:100;padding:10px;position:absolute;top:-70px;left:12px;color:#fff!important}.skip-link:focus{top:12px}.prose-small{color:var(--muted);font-size:14px}.numbered-step{grid-template-columns:32px 1fr;gap:14px;margin:28px 0;display:grid}.numbered-step>span{color:var(--teal);font-family:var(--font-geist-mono),monospace;padding-top:3px;font-size:12px}.numbered-step p{max-width:740px}.sources{color:var(--muted);font-size:12px}.source-label{font-family:var(--font-geist-mono),monospace;overflow-wrap:anywhere;font-size:10px}.no-wrap{white-space:nowrap}@media (max-width:700px){.article-wrap{padding:0 22px}.chapter-nav{gap:6px 13px;padding-top:20px;font-size:11px}.page-head{padding:30px 0 24px}.hero-stat{padding:2px 12px}.hero-stat span{font-size:11px}.hero-results{padding:20px 0}.article-section{padding:34px 0}.section-grid,.cards{grid-template-columns:1fr;gap:16px}.loop-nodes{grid-template-columns:1fr}.loop-node{gap:6px;min-height:0;padding:16px}.node-arrow{height:27px;transform:rotate(90deg)}.loop-return{margin:0 15px}.metric-row{gap:12px}.metric-tile strong{font-size:24px}.metric-tile small{font-size:10px}.chart-box{padding:12px}.selfdb td,.selfdb th{padding:10px}.research-footer{flex-direction:column}.run-summary{grid-template-columns:35px 1fr auto!important;gap:8px!important;font-size:12px!important}.run-price{font-size:11px}.receipt-grid{grid-template-columns:1fr}.selfdb summary{flex-wrap:wrap;font-size:13px}.status{margin-left:22px}.detail-body{padding-left:0}.formula{font-size:19px}.byline{gap:12px;font-size:10px}.equation{padding:20px 12px}}@media (prefers-reduced-motion:reduce){.selfdb *{scroll-behavior:auto!important;transition:none!important}}@media print{.selfdb{background:#fff;font-size:11pt}.chapter-nav,.run-tools,.tabs,.skip-link{display:none}.article-wrap{max-width:none;padding:0}.page-head{padding-top:0}.selfdb h1{font-size:32pt}.article-section{break-inside:avoid}.selfdb a{text-decoration:underline}.selfdb details>*{display:block!important}.chart-box,.loop-node{break-inside:avoid}.research-footer{padding-bottom:0}}.overview-article .page-head{padding:32px 0 28px}.overview-article h1{max-width:900px;font-size:clamp(2.2rem,5vw,3.8rem)}.overview-article .article-section{padding:32px 0}.overview-article h2{letter-spacing:-.025em;font-size:clamp(1.55rem,3vw,2rem)}.overview-article .result-change{color:var(--teal);font-weight:600}.overview-article .reflection-space{min-height:0;padding:18px}.selfdb .node-number{text-transform:none;letter-spacing:0;font-size:11px}.overview-article .compute-summary{color:var(--muted);margin:18px 0 0;font-size:14px}.compute-summary a{-webkit-text-decoration:underline #b6c6b8;text-decoration:underline #b6c6b8}.overview-results{margin:26px 0}.overview-metric-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.overview-metric{border:1px solid var(--line);background:#f0f2eb;border-radius:6px;padding:20px 16px 12px}.overview-metric h3{letter-spacing:-.02em;margin-bottom:8px;font-size:16px}.overview-metric .metric-detail{color:var(--muted);margin-bottom:14px;font-size:10px}.overview-metric .metric-improvement{letter-spacing:-.04em;color:var(--teal);margin-bottom:18px;font-size:27px;line-height:1.3}.overview-metric svg{width:100%;height:auto;display:block}.overview-results figcaption{max-width:780px}@media (max-width:700px){.overview-metric-grid{grid-template-columns:1fr;gap:14px}.overview-metric{padding:20px}.overview-metric .metric-detail{font-size:12px}.overview-article .compute-summary{font-size:12px;line-height:1.9}.overview-metric svg{max-width:420px}}.reconstruction-gallery{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:32px 0;padding:26px 0}.reconstruction-gallery>h3{margin-bottom:14px;font-size:21px}.reconstruction-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:20px 0;display:grid}.reconstruction-panel{min-width:0}.reconstruction-panel>p{margin-bottom:8px;font-size:12px;font-weight:500}.reconstruction-panel img{background:#050505;border-radius:3px;width:100%;height:auto;display:block}.reconstruction-errors{margin:20px 0}.error-grid{grid-template-columns:repeat(2,minmax(0,1fr));max-width:680px}.error-colorbar{max-width:400px;color:var(--muted);align-items:center;gap:10px;margin:18px auto 10px;font-size:11px;display:flex}.magma-scale{background:linear-gradient(90deg,#000004,#51127c,#b73779,#fc8961,#fcfdbf);flex:1;height:10px;display:block}.reconstruction-gallery .visual-attribution{color:var(--muted);margin:10px 0 0;font-size:11px}.visual-attribution a{text-decoration:underline}@media (max-width:700px){.reconstruction-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 10px}.reconstruction-panel{width:100%;margin:auto}.reconstruction-grid:not(.error-grid) .reconstruction-panel:last-child{grid-column:1/-1;max-width:240px}.reconstruction-panel>p{font-size:11px}.reconstruction-gallery{padding:22px 0}}.reflection-point{max-width:740px;margin-top:28px}.reflection-point h3{margin-bottom:12px;line-height:1.35}.reflection-point p:last-child{margin-bottom:0}.step-matrix .training-axis{vertical-align:middle}.step-matrix .inference-group{text-align:center;border-left:1px solid #b6beb5}.step-matrix .inference-column{text-align:center;border-left:1px solid #b6beb5;border-right:1px solid #b6beb5}.step-matrix td strong{color:var(--ink);font-weight:750}.selfdb .section-read-more{border:1px solid var(--line);max-width:740px;color:var(--teal);border-radius:6px;justify-content:space-between;align-items:center;gap:20px;margin-top:24px;padding:14px 18px;font-size:14px;text-decoration:none;transition:background .16s,border-color .16s;display:flex}.selfdb .section-read-more:hover{background:var(--mint);border-color:#b4cdbd}.section-read-more>span:last-child{flex-shrink:0}