:root {
  color-scheme: dark;
  --page: #1c1c1c;
  --panel: #282928;
  --ink: #d1d1d1;
  --muted: #a6a6a6;
  --line: #3e413b;
  --accent: #a2c781;
  --green: #80a889;
  --mono: ui-monospace, SFMono-Regular, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; background: var(--page); color: var(--ink); font: 15px/1.6 Arial, Helvetica, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
button, input, select { font: inherit; }
code { font: .9em var(--mono); overflow-wrap: anywhere; }
p { margin: 0 0 14px; }
.topbar { position: sticky; top: 0; z-index: 5; background: var(--page); }
.topbar-inner, main, footer { width: min(100% - 48px, 1080px); margin-inline: auto; }
.topbar-inner { display: flex; align-items: center; gap: 24px; padding-block: 28px; border-bottom: 1px solid var(--line); }
.logo { font-size: 26px; line-height: 30px; font-weight: 500; color: var(--ink); white-space: nowrap; }
.logo:hover { text-decoration: none; }
.logo span { color: var(--green); }
.tagline { margin: 0; padding-left: 24px; border-left: 1px solid #62675c; color: var(--muted); font-size: 14px; }
.topbar nav { margin-left: auto; display: flex; gap: 14px; font-size: 12px; }
.topbar nav a { color: var(--muted); white-space: nowrap; }
.topbar nav a:hover, .topbar nav .external { color: var(--accent); }
.intro { padding: 30px 0 26px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 28px; }
.eyebrow { font-size: 12px; font-weight: 400; color: var(--muted); margin: 0 0 7px; }
h1 { font-size: 30px; line-height: 1.3; margin: 0 0 14px; font-weight: 400; }
.lede { max-width: 600px; font-size: 14px; color: var(--muted); line-height: 1.7; margin: 0; }
.target { border-left: 1px solid var(--line); padding-left: 24px; min-width: 210px; }
.target > span, .target small { font-size: 12px; color: var(--muted); }
.target strong { display: block; font: 60px/1.1 var(--mono); letter-spacing: -.06em; color: var(--accent); padding: 8px 0; }
.target strong span { font-size: 26px; margin-left: 10px; letter-spacing: 0; color: var(--ink); }
.feed-status { display: flex; align-items: center; gap: 12px; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 12px; }
.feed-status p { margin: 0; flex: 1; }
.feed-status > a { white-space: nowrap; }
.status-light { width: 7px; height: 7px; border: 1px solid var(--muted); border-radius: 50%; flex-shrink: 0; }
body[data-feed-state=running] .status-light { background: var(--accent); border-color: var(--accent); }
body[data-feed-state=error] .status-light, body[data-feed-state=paused] .status-light { background: #da9b60; border-color: #da9b60; }
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 22px 0 0; }
.metrics article { min-width: 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 4px; background: var(--panel); }
.metrics article > span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 9px; }
.metrics strong { font: 22px/1.4 var(--mono); overflow-wrap: anywhere; }
.metrics article:last-child strong { font-size: 16px; }
.run-notes { display: flex; gap: 24px; justify-content: space-between; align-items: start; margin: 12px 0 24px; font-size: 12px; color: var(--muted); }
.run-notes p { margin: 0; }
.run-notes > span { white-space: nowrap; }
.chart-controls { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 28px 0 18px; font-size: 12px; }
.chart-controls > span { margin-left: auto; color: var(--muted); }
select { padding: 7px 28px 7px 10px; background: var(--page); color: var(--ink); border: 1px solid #51564c; border-radius: 4px; }
.panel { border: 1px solid var(--line); border-radius: 4px; background: var(--panel); padding: 26px 28px; margin-bottom: 20px; min-width: 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 20px; }
.section-head .eyebrow { margin-bottom: 7px; }
h2 { font-size: 21px; line-height: 1.4; font-weight: 500; margin: 0; }
h3 { font-size: 15px; line-height: 1.5; font-weight: 500; margin: 20px 0 10px; }
.section-head > span, .section-head > a { font-size: 12px; color: var(--muted); }
.section-head > a { color: var(--accent); }
.caption { font-size: 12px; line-height: 1.75; color: var(--muted); margin: 18px 0 0; }
.caption strong { color: var(--ink); font-weight: 400; }
.stress-chart { position: relative; min-width: 0; }
.stress-chart svg { display: block; width: 100%; height: 270px; touch-action: pan-y; overflow: visible; }
.stress-chart [data-chart-empty] { text-align: center; position: absolute; inset: 100px 0 auto; color: var(--muted); font-size: 13px; }
.stress-chart text { fill: var(--muted); font: 10px var(--mono); }
.stress-chart .grid { stroke: currentColor; opacity: .13; }
.stress-legend { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 16px; }
.stress-legend span { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; }
.stress-legend i { width: 18px; height: 2px; background: var(--track-color); display: inline-block; }
.stress-tooltip { position: absolute; top: 12px; right: 12px; max-width: calc(100% - 24px); padding: 10px 14px; background: var(--page); color: var(--ink); border: 1px solid var(--line); border-radius: 4px; font: 11px/1.7 var(--mono); white-space: pre-line; pointer-events: none; }
.stress-bars { display: grid; gap: 10px; padding: 5px 0; }
.stress-bar { display: grid; grid-template-columns: 90px minmax(50px, 1fr) 250px; gap: 15px; align-items: center; font: 12px var(--mono); }
.stress-bar small { font-size: 11px; color: var(--muted); }
.stress-bar progress { width: 100%; height: 14px; accent-color: var(--accent); }
.detail-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 20px; }
.detail-grid .panel { padding: 26px 24px; }
.table-wrap { overflow-x: auto; min-width: 0; }
table { width: 100%; border-collapse: collapse; text-align: left; font: 12px/1.7 var(--mono); min-width: 720px; }
th { font-size: 11px; color: var(--muted); font-weight: 400; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td:first-child { padding-left: 0; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #30322e; }
.detail-grid table { min-width: 430px; }
.proof-state { font: 13px/1.9 var(--mono); color: var(--accent); overflow-wrap: anywhere; }
.observations { font-size: 12px; color: var(--muted); padding-left: 18px; }
.method { padding: 24px 0 36px; }
.method-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; margin-top: 8px; }
.method-grid p { font-size: 13px; line-height: 1.85; color: var(--muted); }
.method-grid strong { color: var(--ink); font-weight: 500; }
footer { border-top: 1px solid var(--line); padding-block: 24px; text-align: center; font-size: 12px; color: var(--muted); }
footer p { margin: 0; }
footer .data-source { display: inline-block; margin-top: 8px; color: var(--muted); }
.historical-cohorts { border-top: 1px solid var(--line); margin-top: 20px; padding-top: 14px; }
.historical-cohorts summary { font-size: 12px; color: var(--muted); cursor: pointer; }
.historical-cohorts .stress-bars { padding-top: 18px; }
.panel .stream-stage { background: var(--page); border-radius: 4px; }
.panel .stream-toolbar button { background: var(--page); border-color: var(--line); border-radius: 4px; }
@media (max-width: 1000px) {
  html { scroll-padding-top: 150px; }
  .topbar-inner { flex-wrap: wrap; gap: 12px 20px; }
  .topbar nav { flex-basis: 100%; margin: 0; justify-content: space-between; }
  .run-notes { flex-direction: column; gap: 5px; }
}
@media (max-width: 900px) {
  .detail-grid { grid-template-columns: 1fr; }
  .stress-bar { grid-template-columns: 80px 1fr 230px; }
}
@media (max-width: 700px) {
  html { scroll-padding-top: 170px; }
  .topbar-inner, main, footer { width: calc(100% - 32px); }
  .topbar-inner { padding-block: 22px; }
  .tagline { flex-basis: 100%; padding-left: 0; border-left: 0; font-size: 13px; }
  .topbar nav { flex-wrap: wrap; gap: 8px 10px; }
  .intro { grid-template-columns: 1fr; gap: 22px; padding: 24px 0; }
  h1 { font-size: 26px; }
  .target { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; padding: 0; border: 0; }
  .target strong { font-size: 40px; padding: 0; }
  .target strong span { font-size: 22px; margin-left: 7px; }
  .target small { flex-basis: 100%; }
  .feed-status { align-items: start; }
  .status-light { margin-top: 5px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metrics article { padding: 16px 12px; }
  .metrics strong { font-size: 19px; }
  .metrics article:last-child strong { font-size: 14px; }
  .panel, .detail-grid .panel { padding: 22px; }
  .section-head { align-items: start; gap: 12px; }
  .section-head > span { max-width: 120px; text-align: right; }
  h2 { font-size: 21px; }
  .chart-controls > span { margin-left: 0; flex-basis: 100%; }
  .stress-chart svg { height: 230px; }
  .stress-legend { gap: 8px 16px; }
  .stress-legend span { font-size: 11px; }
  .stress-bar { grid-template-columns: 75px 1fr; gap: 6px 12px; }
  .stress-bar small { grid-column: 2; }
  .method-grid { grid-template-columns: 1fr; gap: 6px; }
  .feed-status p { font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}