:root {
  color-scheme: light dark;

  --bg-light: #f3f6f9;
  --bg-dark: #090e1a;
  --surface-light: #ffffff;
  --surface-dark: #111827;
  --surface-alt-light: #e8eef5;
  --surface-alt-dark: #0f172a;
  --border-light: #cbd5e1;
  --border-dark: #273549;
  --text-light: #0f172a;
  --text-dark: #f1f5f9;
  --muted-light: #475569;
  --muted-dark: #94a3b8;
  --accent-light: #0f766e;
  --accent-dark: #2dd4bf;
  --accent-ink-light: #ffffff;
  --accent-ink-dark: #042f2e;
  --pass-light: #15803d;
  --pass-dark: #4ade80;
  --pass-bg-light: #dcfce7;
  --pass-bg-dark: #052e16;
  --fail-light: #b91c1c;
  --fail-dark: #f87171;
  --fail-bg-light: #fee2e2;
  --fail-bg-dark: #450a0a;
  --warn-light: #b45309;
  --warn-dark: #fbbf24;
  --warn-bg-light: #fef3c7;
  --warn-bg-dark: #451a03;

  --bg: var(--bg-light);
  --surface: var(--surface-light);
  --surface-alt: var(--surface-alt-light);
  --border: var(--border-light);
  --text: var(--text-light);
  --muted: var(--muted-light);
  --accent: var(--accent-light);
  --accent-ink: var(--accent-ink-light);
  --pass: var(--pass-light);
  --pass-bg: var(--pass-bg-light);
  --fail: var(--fail-light);
  --fail-bg: var(--fail-bg-light);
  --warn: var(--warn-light);
  --warn-bg: var(--warn-bg-light);

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--bg-dark);
    --surface: var(--surface-dark);
    --surface-alt: var(--surface-alt-dark);
    --border: var(--border-dark);
    --text: var(--text-dark);
    --muted: var(--muted-dark);
    --accent: var(--accent-dark);
    --accent-ink: var(--accent-ink-dark);
    --pass: var(--pass-dark);
    --pass-bg: var(--pass-bg-dark);
    --fail: var(--fail-dark);
    --fail-bg: var(--fail-bg-dark);
    --warn: var(--warn-dark);
    --warn-bg: var(--warn-bg-dark);
  }
}

@supports (color: light-dark(white, black)) {
  :root {
    --bg: light-dark(var(--bg-light), var(--bg-dark));
    --surface: light-dark(var(--surface-light), var(--surface-dark));
    --surface-alt: light-dark(var(--surface-alt-light), var(--surface-alt-dark));
    --border: light-dark(var(--border-light), var(--border-dark));
    --text: light-dark(var(--text-light), var(--text-dark));
    --muted: light-dark(var(--muted-light), var(--muted-dark));
    --accent: light-dark(var(--accent-light), var(--accent-dark));
    --accent-ink: light-dark(var(--accent-ink-light), var(--accent-ink-dark));
    --pass: light-dark(var(--pass-light), var(--pass-dark));
    --pass-bg: light-dark(var(--pass-bg-light), var(--pass-bg-dark));
    --fail: light-dark(var(--fail-light), var(--fail-dark));
    --fail-bg: light-dark(var(--fail-bg-light), var(--fail-bg-dark));
    --warn: light-dark(var(--warn-light), var(--warn-dark));
    --warn-bg: light-dark(var(--warn-bg-light), var(--warn-bg-dark));
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.visually-hidden:where(:not(:focus-within, :active)) {
  position: absolute !important;
  clip-path: inset(50%) !important;
  overflow: hidden !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  border: 0 !important;
  white-space: nowrap !important;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 8px 14px;
  border-radius: 6px;
  font-weight: 700;
  z-index: 100;
}
.skip-link:focus { left: 12px; }

:where(a:any-link, button, input, select, summary):focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-block: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.brand strong { display: block; font-size: 18px; letter-spacing: -0.02em; line-height: 1.1; }
.brand small { display: block; font-size: 12px; color: var(--muted); }
.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #ffffff;
  object-fit: contain;
  flex-shrink: 0;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
}
.nav-links a:hover { color: var(--text); }

.hero {
  padding: 64px 0 52px;
  background: radial-gradient(circle at 12% 10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 48%);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 32px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.eyebrow {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
}
h1 {
  margin: 0 0 16px;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.03em;
}
h2 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.02em;
}
.lead {
  margin: 0 0 24px;
  font-size: 17px;
  color: var(--muted);
  max-width: 56ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.install-box {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #0f172a;
  color: #f8fafc;
  border: 1px solid #334155;
  border-radius: 9px;
  padding: 6px 8px 6px 14px;
  font-family: var(--mono);
  font-size: 13.5px;
}
.copy-btn {
  border: 1px solid #475569;
  background: #1e293b;
  color: #f8fafc;
  border-radius: 6px;
  padding: 5px 10px;
  min-block-size: 30px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}
.copy-btn:hover { background: #334155; }

.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 42px;
  padding: 0 18px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.terminal-card {
  background: #0b1120;
  color: #e2e8f0;
  border: 1px solid #273549;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(2, 6, 23, 0.25);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background: #111827;
  border-bottom: 1px solid #1e293b;
}
.dot { width: 10px; height: 10px; border-radius: 50%; background: #334155; }
.terminal-title { margin-left: 6px; font-family: var(--mono); font-size: 12px; color: #94a3b8; }
.terminal-card pre {
  margin: 0;
  padding: 16px 18px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.55;
  overflow-x: auto;
}
.t-dim { color: #64748b; }
.t-ok { color: #4ade80; font-weight: 700; }

.pillars { padding: 12px 0 48px; }
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.pillar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
}
.pillar-card h2 { font-size: 17px; margin-bottom: 6px; }
.pillar-card p { margin: 0; font-size: 14px; color: var(--muted); }

.section-band { padding: 56px 0; border-top: 1px solid var(--border); }
.alt-band { background: var(--surface-alt); }
.section-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 22px;
}
.section-desc { margin: 0; color: var(--muted); max-width: 64ch; }
.run-meta-pill {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 10px 14px;
  font-size: 12.5px;
  color: var(--muted);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}
.kpi-label { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.kpi-val { font-size: 26px; font-weight: 700; }
.kpi-pass .kpi-val { color: var(--pass); }
.kpi-fail .kpi-val { color: var(--fail); }
.kpi-warn .kpi-val { color: var(--warn); }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 16px;
}
.filter-group, .filter-controls { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.btn-filter {
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text);
  border-radius: 999px;
  min-block-size: 32px;
  padding: 0 13px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}
.btn-filter.active {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.input-ctrl {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 7px;
  min-block-size: 34px;
  padding: 4px 10px;
  font-size: 13px;
}

.tests-stack { display: grid; gap: 12px; }
.test-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.test-summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
}
.test-summary:hover { background: var(--surface-alt); }
.test-left { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.test-id { font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--muted); }
.test-title { font-weight: 600; font-size: 15px; }
.test-right { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.b-passed { background: var(--pass-bg); color: var(--pass); }
.b-failed { background: var(--fail-bg); color: var(--fail); }
.b-flaky { background: var(--warn-bg); color: var(--warn); }
.b-tag { background: var(--surface-alt); color: var(--muted); border: 1px solid var(--border); text-transform: none; }
.b-redact { background: #0f172a; color: #fbbf24; border: 1px solid #334155; text-transform: none; }
.b-flow { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); text-transform: none; }

.test-body {
  border-top: 1px solid var(--border);
  padding: 16px 18px;
  background: var(--surface-alt);
}
.error-box {
  background: var(--fail-bg);
  color: var(--fail);
  border: 1px solid color-mix(in srgb, var(--fail) 35%, transparent);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 12px;
}
.step-list { display: grid; gap: 8px; margin-top: 8px; }
.step-row {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  gap: 12px;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}
.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
}
.step-num.passed { background: var(--pass-bg); color: var(--pass); }
.step-num.failed { background: var(--fail-bg); color: var(--fail); }
.step-desc { font-weight: 500; font-size: 14px; }
.step-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; font-size: 12px; color: var(--muted); }
.thumb-btn {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
  background: #0f172a;
  cursor: zoom-in;
}
.thumb-btn svg,
.thumb-btn img { display: block; width: 76px; height: auto; border-radius: 5px; object-fit: cover; }

.xml-box {
  background: #0b1120;
  color: #e2e8f0;
  padding: 10px 12px;
  border-radius: 7px;
  font-family: var(--mono);
  font-size: 11.5px;
  overflow-x: auto;
  margin: 8px 0 0;
}

.studio-shell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.studio-tablist {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.studio-tablist [role="tab"] {
  position: relative;
  flex: none;
  border: none;
  background: transparent;
  color: var(--muted);
  padding: 12px 18px;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
}
.studio-tablist [role="tab"][aria-selected="true"] { color: var(--text); }
.studio-tablist [role="tab"][aria-selected="true"]::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  border-block-end: 3px solid var(--accent);
}
.code-panel pre {
  margin: 0;
  padding: 20px;
  background: #0b1120;
  color: #e2e8f0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
}

.arch-figure {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}
.arch-figure img { display: block; width: 100%; height: auto; border-radius: 8px; }
.arch-figure figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); text-align: center; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 26px 0;
  font-size: 13.5px;
  color: var(--muted);
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}
.footer-logo {
  width: 40px;
  height: 40px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: #ffffff;
  object-fit: contain;
}
.site-footer a { color: var(--text); }

dialog#proofLightbox {
  border: 1px solid #334155;
  border-radius: 14px;
  padding: 16px;
  max-width: min(520px, 92vw);
  background: #0b1120;
  color: #f8fafc;
}
dialog#proofLightbox:modal { overscroll-behavior: contain; }
dialog#proofLightbox::backdrop {
  background: rgba(2, 6, 23, 0.8);
  overflow: hidden;
  overscroll-behavior: contain;
}
.lb-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.lb-head h3 { margin: 0; font-size: 15px; }
.lb-close {
  border: 1px solid #475569;
  background: #1e293b;
  color: #f8fafc;
  border-radius: 7px;
  padding: 6px 12px;
  cursor: pointer;
}
.lb-media { display: flex; justify-content: center; }
.lb-media svg,
.lb-media img { width: 100%; max-width: 300px; height: auto; border-radius: 14px; }
.lb-caption { margin: 12px 0 0; font-size: 13px; color: #94a3b8; }