:root{--bg:#0b1020;--bg2:#11182d;--panel:rgba(255,255,255,.055);--panel2:rgba(255,255,255,.035);--text:#eef2ff;--muted:#aeb8d6;--line:rgba(255,255,255,.12);--accent:#78a9ff;--accent2:#9e8cff;--green:#6ee7b7;--amber:#fbbf24;--red:#fb7185;--shadow:0 20px 60px rgba(0,0,0,.28);--radius:22px;--max:1180px}
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var(--line);background:rgba(120,169,255,.075)}.callout.green{background:rgba(110,231,183,.07)}.callout.amber{background:rgba(251,191,36,.07)}.callout.red{background:rgba(251,113,133,.07)}.formula{margin:20px 0;padding:22px;border-radius:16px;text-align:center;border:1px solid rgba(120,169,255,.22);background:#0a1225;font-family:"SFMono-Regular",Consolas,monospace;font-size:18px;color:#e8efff;overflow:auto}.timeline{display:grid;gap:14px;margin-top:20px}.t-item{display:grid;grid-template-columns:92px 1fr;gap:18px;padding:18px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025)}.year{font-weight:800;color:#aecdff;font-size:18px}.t-item strong{color:#fff}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.mini{padding:18px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.027)}.mini .k{font-size:12px;color:#95a3c7;text-transform:uppercase;letter-spacing:.08em}.mini .v{font-size:26px;font-weight:800;margin:5px 0 2px}table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}th,td{padding:13px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{color:#cbd5f5;background:rgba(255,255,255,.03)}td{color:#dce3f8}code{padding:2px 6px;border-radius:6px;background:#131b31;border:1px solid var(--line);color:#cde0ff}ul,ol{padding-left:22px;color:#dce3fb}li{margin:7px 0}.flow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:18px 0}.node{padding:10px 13px;border:1px solid var(--line);border-radius:12px;background:#10172a;color:#edf2ff;font-size:14px}.arrow{color:#7f8fb6}.quote{font-size:23px;font-weight:700;line-height:1.55;padding:24px 26px;margin:20px 0;background:linear-gradient(135deg,rgba(120,169,255,.10),rgba(158,140,255,.08));border:1px solid 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/* Soren's shared frame around a technical field note. */
body{min-width:320px}
a:focus-visible{outline:2px solid var(--green);outline-offset:4px}
.sp-header{position:relative;z-index:2}
.sp-header .sp-brand,.sp-nav a{color:var(--text)}
.sp-footer{color:var(--muted)}
.hero{padding-top:clamp(48px,6vw,78px)}
.back-link{display:inline-block;margin-bottom:22px;color:#b8d0ff;font-size:14px;text-decoration:none}
.back-link:hover{text-decoration:underline}
.note-context{max-width:820px;margin:22px 0 0;color:var(--muted);font-size:14px}
.toc{max-height:calc(100vh - 44px);overflow:auto}
.source-list{list-style:none;padding:0;margin:16px 0 0}
.source-list li{padding:12px 0;border-top:1px solid var(--line);margin:0}
.source-list a{color:#b8d0ff;text-decoration:underline;text-underline-offset:.2em;overflow-wrap:anywhere}
.source-list p{margin:3px 0 0;font-size:13px;color:var(--muted)}
.benchmark-note{font-size:13px;color:var(--muted)}
@media(max-width:900px){
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  .layout aside,.layout main,.toc{min-width:0}
  .toc{position:static;max-height:none;padding:12px 14px}
  .toc .title{margin-bottom:4px}
  .toc-links{display:flex;gap:4px 8px;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}
  .toc a{flex:none}
}
@media(max-width:560px){
  .hero,.layout{padding-left:17px;padding-right:17px}
  h1{font-size:clamp(38px,10vw,48px);line-height:1.12}
  .hero-card,.card{padding:20px}
  .t-item{grid-template-columns:1fr;gap:4px}
  .diagram{max-width:100%;padding:14px}
  table{display:block;overflow-x:auto;white-space:nowrap}
  th,td{min-width:135px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}