:root {
  --bg: #0b0e12;
  --bg2: #12171e;
  --panel: #151b23;
  --ink: #e8edf4;
  --ink2: #9aa8b8;
  --ink3: #6b7a8c;
  --rule: #263041;
  --accent: #5b9fd4;
  --good: #3ecf8e;
  --warn: #e6b84d;
  --bad: #e06c75;
  --purple: #a78bfa;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  --serif: "Iowan Old Style", Palatino, Georgia, serif;
  --shadow: 0 1px 2px rgba(0,0,0,.35), 0 12px 40px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: 15px; line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 50;
  background: var(--panel); padding: 10px 14px; border: 1px solid var(--rule);
}
.skip:focus { left: 8px; top: 8px; }

header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 22px; border-bottom: 1px solid var(--rule); background: var(--panel);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; }
.mark { width: 28px; height: 28px; color: var(--accent); }
h1 { margin: 0; font-size: 16px; font-weight: 650; letter-spacing: -.02em; }
.tag { margin: 2px 0 0; font-size: 12px; color: var(--ink3); }
.nav { display: flex; flex-wrap: wrap; gap: 12px; }
.nav a {
  color: var(--ink2); text-decoration: none; font-size: 13px; font-weight: 500;
}
.nav a:hover { color: var(--ink); }

main { max-width: 1120px; margin: 0 auto; padding: 28px 20px 80px; }

.hero {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; margin-bottom: 28px;
}
.kicker {
  font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink3); margin: 0 0 10px;
}
.hero h2 {
  font-family: var(--serif); font-size: clamp(26px, 4vw, 34px); line-height: 1.15;
  letter-spacing: -.02em; margin: 0 0 12px; font-weight: 600;
}
.hero h2 em { color: var(--accent); font-style: italic; }
.lede { color: var(--ink2); margin: 0 0 14px; max-width: 52ch; }
.hero-meta {
  font-family: var(--mono); font-size: 12px; color: var(--ink3);
  padding: 10px 12px; border: 1px solid var(--rule); border-radius: 8px; background: var(--bg2);
}

.hero-cards { display: grid; gap: 10px; }
.kpi {
  background: var(--panel); border: 1px solid var(--rule); border-radius: 12px;
  padding: 14px 16px; box-shadow: var(--shadow);
}
.kpi .lbl {
  font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink3); margin-bottom: 6px;
}
.kpi .val { font-size: 26px; font-weight: 650; letter-spacing: -.03em; }
.kpi .sub { font-size: 12px; color: var(--ink2); margin-top: 4px; }
.kpi.l2 .val { color: var(--good); }
.kpi.tokens .val { color: var(--accent); }
.kpi.l3 .val { color: var(--warn); }

.panel {
  background: var(--panel); border: 1px solid var(--rule); border-radius: 14px;
  padding: 18px 18px 20px; margin-bottom: 18px; box-shadow: var(--shadow);
}
.panel.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.panel-h { margin-bottom: 14px; }
.panel-h.row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.panel-h h3 { margin: 0 0 4px; font-size: 16px; letter-spacing: -.015em; }
.panel-h p { margin: 0; color: var(--ink3); font-size: 13px; }

.layer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.layer {
  border: 1px solid var(--rule); border-radius: 10px; padding: 14px; background: var(--bg2);
  border-top: 3px solid var(--ink3);
}
.layer.L1 { border-top-color: var(--bad); }
.layer.L2 { border-top-color: var(--good); }
.layer.L3 { border-top-color: var(--warn); }
.layer.L4 { border-top-color: var(--purple); }
.layer h4 { margin: 0 0 6px; font-size: 14px; }
.layer .amt { font-size: 20px; font-weight: 650; margin-bottom: 6px; }
.layer .cls {
  font-family: var(--mono); font-size: 10px; color: var(--ink3); text-transform: uppercase;
  letter-spacing: .06em;
}
.layer p { margin: 8px 0 0; font-size: 12.5px; color: var(--ink2); }

canvas { width: 100%; height: auto; display: block; border-radius: 8px; background: var(--bg2); border: 1px solid var(--rule); }
.chart-legend {
  display: flex; flex-wrap: wrap; gap: 10px 14px; margin-top: 10px;
  font-size: 12px; color: var(--ink2);
}
.chart-legend i {
  display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 6px;
}

.band-table-wrap { overflow-x: auto; }
.band-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.band-table th, .band-table td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--rule);
}
.band-table th {
  font-family: var(--mono); font-size: 10px; letter-spacing: .07em; text-transform: uppercase;
  color: var(--ink3); font-weight: 600;
}
.band-table td.num { font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 12px; }
.pill {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px;
  border: 1px solid var(--rule); color: var(--ink2); background: var(--bg2);
}
.pill.measured { color: var(--good); border-color: color-mix(in srgb, var(--good) 40%, var(--rule)); }
.pill.proxy { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--rule)); }
.pill.bad { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, var(--rule)); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.backend-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.backend-summary {
  grid-column: 1 / -1; font-size: 13px; color: var(--ink2);
  padding: 8px 10px; border-radius: 8px; background: var(--bg2); border: 1px solid var(--rule);
}
.backend {
  border: 1px solid var(--rule); border-radius: 10px; padding: 12px; background: var(--bg2);
  display: flex; flex-direction: column; gap: 6px;
}
.backend.ok { border-color: color-mix(in srgb, var(--good) 35%, var(--rule)); }
.backend.down { opacity: .85; }
.backend .bn { font-weight: 600; font-size: 14px; }
.backend .bo { font-family: var(--mono); font-size: 11px; color: var(--ink3); }
.muted { color: var(--ink3); font-size: 13px; margin: 0; }
.filter-label { display: block; }
.filter-label input {
  width: min(240px, 100%); padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--rule); background: var(--bg); color: var(--ink); font: inherit; font-size: 13px;
}
.scale-btn[aria-pressed="true"] {
  background: color-mix(in srgb, var(--accent) 22%, var(--bg2));
  border-color: color-mix(in srgb, var(--accent) 50%, var(--rule));
  color: var(--ink);
}
.run-steps {
  margin: 0 0 14px; padding-left: 20px; color: var(--ink2); font-size: 13.5px; line-height: 1.65;
}
.run-steps code {
  font-family: var(--mono); font-size: 11.5px; color: var(--good);
  background: var(--bg); padding: 1px 6px; border-radius: 4px; border: 1px solid var(--rule);
}
.sr-table-wrap { margin-top: 10px; overflow-x: auto; }
.sr-table {
  width: 100%; border-collapse: collapse; font-size: 12px; color: var(--ink2);
}
.sr-table th, .sr-table td {
  text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--rule);
}
.sr-table th {
  font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink3);
}
.sr-table .num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.compose-card {
  border: 1px dashed color-mix(in srgb, var(--purple) 50%, var(--rule));
  background: color-mix(in srgb, var(--purple) 8%, var(--bg2));
  border-radius: 12px; padding: 14px 16px; margin-bottom: 14px;
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
}
.compose-card h4 { margin: 0 0 4px; }
.compose-card p { margin: 0; font-size: 13px; color: var(--ink2); }

.agent-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px;
}
.agent {
  border: 1px solid var(--rule); border-radius: 12px; padding: 12px 13px; background: var(--bg2);
  display: flex; flex-direction: column; gap: 8px; min-height: 148px;
}
.agent .top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.agent .rank {
  font-family: var(--mono); font-size: 11px; color: var(--ink3);
}
.agent h4 { margin: 0; font-size: 14px; }
.agent .vendor { font-size: 12px; color: var(--ink3); }
.agent .lens {
  font-family: var(--mono); font-size: 10px; letter-spacing: .04em; text-transform: uppercase;
  color: var(--ink2);
}
.agent .strength { font-size: 12.5px; color: var(--ink2); flex: 1; }
.agent .swatch { width: 10px; height: 10px; border-radius: 50%; flex: none; margin-top: 4px; }

.btn {
  appearance: none; border: 1px solid var(--rule); background: var(--bg2); color: var(--ink);
  border-radius: 8px; padding: 7px 12px; font: inherit; font-size: 12.5px; font-weight: 560;
  cursor: pointer;
}
.btn:hover { border-color: var(--ink3); }
.btn.primary { background: var(--accent); border-color: transparent; color: #0b1014; }
.btn.ghost { background: transparent; }
.row-actions { display: flex; gap: 8px; }

.prompt-body {
  margin: 0; padding: 14px 16px; border-radius: 10px; background: var(--bg);
  border: 1px solid var(--rule); color: var(--ink2); font-family: var(--mono);
  font-size: 12px; line-height: 1.55; white-space: pre-wrap; max-height: 60vh; overflow: auto;
}

.residual-list { margin: 0; padding-left: 18px; color: var(--ink2); }
.residual-list li { margin-bottom: 6px; }

.clone-box {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
  padding: 12px 14px; border-radius: 10px; background: var(--bg); border: 1px solid var(--rule);
  margin-bottom: 12px;
}
.clone-box code {
  font-family: var(--mono); font-size: 12.5px; color: var(--good); flex: 1; min-width: 220px;
  word-break: break-all;
}
.clone-notes { margin: 0 0 12px; padding-left: 18px; color: var(--ink2); font-size: 13px; }
.clone-links { display: flex; flex-wrap: wrap; gap: 12px 16px; font-size: 13px; }

footer {
  border-top: 1px solid var(--rule); padding: 18px 22px 28px; text-align: center;
  color: var(--ink2); font-size: 13px;
}
footer .dim { color: var(--ink3); font-family: var(--mono); font-size: 11px; }

@media (max-width: 1100px) {
  .layer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .hero, .panel.split, .layer-grid { grid-template-columns: 1fr; }
  header { flex-direction: column; align-items: flex-start; }
  .panel-h.row { flex-direction: column; align-items: flex-start; }
}