:root {
  color-scheme: light;
  --paper: #f4f1e9;
  --paper-deep: #e9e4d8;
  --ink: #161a1d;
  --muted: #5d615f;
  --line: #c8c3b7;
  --card: #fbfaf6;
  --navy: #17324d;
  --blue: #2d6ea3;
  --teal: #0d776e;
  --teal-dark: #07564f;
  --orange: #e47628;
  --red: #b9362c;
  --red-dark: #85261f;
  --partial: #78a8bd;
  --blank: #c9c6bd;
  --static: #ae5a91;
  --conditional: #d68a2f;
  --shadow: 0 1px 0 rgba(22, 26, 29, 0.08), 0 12px 36px rgba(22, 26, 29, 0.06);
  --max: 1180px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(22, 26, 29, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 100% 28px;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

a { color: var(--navy); text-underline-offset: 0.18em; }
a:hover { color: var(--red-dark); }
a:focus-visible, summary:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
  border-radius: 2px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  transform: translateY(-180%);
  padding: 0.6rem 0.9rem;
  background: var(--ink);
  color: white;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0.65rem max(1.25rem, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(22, 26, 29, 0.18);
  background: rgba(244, 241, 233, 0.94);
  backdrop-filter: blur(14px);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 760;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark-mark {
  display: grid;
  width: 2.15rem;
  height: 2.15rem;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0;
}

nav { display: flex; gap: 0.7rem; }
nav a {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}
.mobile-nav { display: none; }

.site-links {
  gap: 0.85rem;
  margin-right: auto;
  margin-left: 1.25rem;
  padding-left: 1.25rem;
  border-left: 1px solid var(--line);
}
.site-links a { font-size: 0.7rem; }

main { overflow: hidden; }

.hero,
.section,
footer {
  width: min(calc(100% - 2.5rem), var(--max));
  margin-inline: auto;
}

.hero {
  position: relative;
  min-height: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.8rem 0 2.2rem;
}

.hero::after {
  position: absolute;
  z-index: -1;
  right: -11rem;
  bottom: 5rem;
  width: 31rem;
  height: 31rem;
  border: 5.8rem solid rgba(45, 110, 163, 0.08);
  border-radius: 50%;
  content: "";
}

.hero-kicker,
.eyebrow,
.card-label,
.chart-kicker,
.case-type {
  margin: 0 0 0.8rem;
  color: var(--red-dark);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

h1 {
  max-width: 1100px;
  margin-bottom: 1.35rem;
  font-size: clamp(2.7rem, 5.2vw, 4.35rem);
}
h1 span { color: var(--blue); }

h2 {
  max-width: 850px;
  margin-bottom: 1.2rem;
  font-size: clamp(2.05rem, 3.8vw, 3.55rem);
}

h3 { font-size: clamp(1.25rem, 2.4vw, 1.75rem); }

.hero-deck {
  max-width: 830px;
  margin-bottom: 1.8rem;
  color: #303738;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.2rem, 2.2vw, 1.65rem);
  line-height: 1.45;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 900px;
  border-block: 1px solid var(--line);
}
.hero-stats div { padding: 1.15rem 1rem 1.15rem 0; }
.hero-stats strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1;
}
.hero-stats span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-note {
  max-width: 720px;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.early-guide {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(calc(100% - 2.5rem), var(--max));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.early-guide > div { padding: 1.2rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.early-guide strong { display: block; margin-bottom: 0.45rem; font-family: Georgia, "Times New Roman", serif; font-size: 1.02rem; }
.early-guide p { margin: 0; color: var(--muted); font-size: 0.82rem; }
.early-guide b { color: var(--ink); }
.early-guide a { font-weight: 750; }

.section { padding: 4.6rem 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-heading { max-width: 880px; margin-bottom: 2rem; }
.section-heading > p:last-child { max-width: 740px; margin-bottom: 0; color: var(--muted); font-size: 1.05rem; }
.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.7fr);
  gap: 4rem;
  max-width: none;
  align-items: end;
}
.split-heading h2 { margin-bottom: 0; }

.primer-section { padding-top: 3.8rem; }
.benchmark-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 0 0 3.5rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.benchmark-flow li {
  position: relative;
  display: grid;
  align-content: start;
  gap: 0.9rem;
  padding: 1.3rem 1.1rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.benchmark-flow li:last-child { border-right: 0; }
.benchmark-flow li > span {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 800;
}
.benchmark-flow strong { display: block; margin-bottom: 0.55rem; line-height: 1.3; }
.benchmark-flow p { margin: 0; color: var(--muted); font-size: 0.8rem; line-height: 1.5; }
.primer-transition { max-width: 820px; margin-bottom: 1.6rem; }
.primer-transition h3 { margin-bottom: 0.6rem; }
.primer-transition p { margin-bottom: 0; color: var(--muted); }
.conflict-definition-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.definition-card {
  padding: 1.45rem;
  border-top: 5px solid var(--blue);
  background: var(--card);
  box-shadow: var(--shadow);
}
.definition-static { border-color: var(--static); }
.definition-conditional { border-color: var(--conditional); }
.definition-count {
  margin-bottom: 0.7rem;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}
.definition-card h3 { margin-bottom: 0.8rem; }
.definition-card blockquote {
  margin: 1.2rem 0;
  padding: 0.8rem 0 0.8rem 1rem;
  border-left: 3px solid var(--line);
  color: #343a3b;
  font-family: Georgia, "Times New Roman", serif;
}
.definition-card blockquote p,
.definition-rule { margin-bottom: 0; }
.definition-rule { color: var(--muted); font-size: 0.86rem; }
.primer-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.primer-panel {
  padding: 1.5rem;
  border: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.72);
}
.primer-panel h3 { font-size: 1.45rem; }
.primer-panel p:last-child { margin-bottom: 0; }
.scoring-explainer {
  margin-top: 1rem;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  background: var(--navy);
  color: var(--paper);
}
.scoring-intro { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: 2rem; }
.scoring-intro h3 { margin-bottom: 0; font-size: 1.7rem; }
.scoring-intro p { margin-bottom: 0; color: #d4dfe5; }
.outcome-definitions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.8rem;
  background: #557087;
}
.outcome-definition { padding: 1rem; background: #203d58; }
.outcome-definition strong { display: block; margin-bottom: 0.35rem; }
.outcome-definition span { color: #d4dfe5; font-size: 0.82rem; }
.outcome-correct { border-top: 4px solid var(--teal); }
.outcome-partial { border-top: 4px solid var(--partial); }
.outcome-blank { border-top: 4px solid var(--blank); }
.outcome-wrong { border-top: 4px solid var(--red); }
.metric-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.metric-notes > div { padding: 1rem; border: 1px solid #557087; }
.metric-notes h4 { margin: 0 0 0.5rem; font-size: 0.9rem; }
.metric-notes p { margin: 0; color: #d4dfe5; font-size: 0.84rem; }
.formula-note { margin: 1rem 0 0; padding-top: 1rem; border-top: 1px solid #557087; color: #d4dfe5; font-size: 0.84rem; }

.verdict {
  width: 100%;
  max-width: none;
  padding-inline: max(1.25rem, calc((100vw - var(--max)) / 2));
  background: var(--ink);
  color: var(--paper);
}
.verdict .section-heading > p:last-child { color: #c9ccc9; }
.verdict .eyebrow { color: #ff9f5c; }

.top-safety {
  display: grid;
  grid-template-columns: minmax(230px, 0.7fr) minmax(0, 1.3fr);
  gap: 2rem;
  margin: 0 0 1.3rem;
  padding: 1.4rem 1.55rem;
  border: 1px solid #d8845a;
  border-left: 5px solid #ff8b4b;
  background: #2b2523;
}
.top-safety .card-label { color: #ff9f5c; }
.top-safety h3 { margin: 0; color: #fff7ed; font-size: 1.45rem; }
.top-safety p:last-child { margin: 0; color: #e5d5cc; }

.recommendation-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.recommendation {
  min-height: 390px;
  padding: 1.6rem;
  border: 1px solid #43494b;
  background: #202629;
}
.recommendation-primary {
  border-color: #75b9ae;
  background: var(--teal-dark);
}
.recommendation h3 { margin-bottom: 1.6rem; font-size: 2.2rem; }
.recommendation p:last-child { margin-bottom: 0; color: #d8dbd7; }
.recommendation-number {
  margin-bottom: 1.3rem;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 2rem;
  font-weight: 800;
}
.recommendation-number span { display: block; color: #bcc2bf; font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase; }
.recommendation-secondary {
  margin: -0.6rem 0 1.1rem;
  color: #a9d8d1;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 800;
}
.recommendation-scope { max-width: 880px; margin: 1rem 0 0; color: #c9ccc9; font-size: 0.8rem; }
.recommendation-config {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.18);
  font-size: 0.78rem;
}
.early-cost-score { margin-top: 2rem; color: var(--ink); }

.noise-note {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  gap: 2rem;
  margin-top: 1.1rem;
  padding: 1.35rem 1.6rem;
  border-left: 4px solid var(--orange);
  background: #262d30;
}
.noise-note strong { font-family: Georgia, "Times New Roman", serif; font-size: 1.25rem; }
.noise-note p { margin: 0; color: #c9ccc9; }

.chart-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}
.chart-interaction-note,
.history-reading-note {
  margin: -1.6rem 0 1.4rem;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--blue);
  background: rgba(251, 250, 246, 0.68);
  color: var(--muted);
  font-size: 0.82rem;
}
.history-reading-note { margin-top: -1.5rem; border-color: var(--teal); }

.chart-card {
  margin: 0;
  padding: clamp(1.1rem, 2vw, 1.8rem);
  border: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.94);
  box-shadow: var(--shadow);
}
.chart-card h3 { margin-bottom: 0; }
.chart-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.8rem;
}
.chart-heading-control { align-items: flex-start; }
.chart-description { max-width: 720px; margin: 0.5rem 0 0; color: var(--muted); font-size: 0.86rem; }
.chart-select-label {
  display: grid;
  gap: 0.35rem;
  min-width: 180px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.chart-select-label select {
  width: 100%;
  padding: 0.55rem 2rem 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: white;
  color: var(--ink);
  font: 700 0.85rem/1.2 system-ui, sans-serif;
}
.chart-kicker { margin-bottom: 0.4rem; color: var(--blue); }
figcaption, .chart-footnote {
  margin-top: 1.2rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.legend, .session-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
}
.legend span, .session-legend span { display: inline-flex; align-items: center; gap: 0.35rem; }
.swatch { width: 0.68rem; height: 0.68rem; border-radius: 2px; }
.swatch-correct { background: var(--teal); }
.swatch-partial { background: var(--partial); }
.swatch-blank { background: var(--blank); }
.swatch-wrong { background: var(--red); }
.swatch-dynamic { background: var(--blue); }
.swatch-static { background: var(--static); }
.swatch-conditional { background: var(--conditional); }

.outcome-chart { display: grid; gap: 1rem; }
.outcome-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) 58px;
  gap: 0.8rem;
  align-items: center;
}
.outcome-name { font-size: 0.88rem; font-weight: 780; }
.outcome-bar {
  display: flex;
  height: 27px;
  overflow: hidden;
  border-radius: 3px;
  background: var(--paper-deep);
}
.outcome-segment { min-width: 1px; }
.outcome-segment.correct { background: var(--teal); }
.outcome-segment.partial { background: var(--partial); }
.outcome-segment.blank { background: var(--blank); }
.outcome-segment.incorrect { background: var(--red); }
.outcome-value { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.78rem; text-align: right; }

.svg-chart { min-height: 350px; }
.chart-canvas-wrap,
.session-canvas-wrap {
  position: relative;
  width: 100%;
}
.chart-canvas-wrap canvas,
.session-canvas-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}
.session-canvas-wrap { height: 240px; }
.chart-error {
  padding: 1rem;
  border-left: 4px solid var(--red);
  background: #f5dedb;
  color: var(--red-dark);
}
.svg-chart svg, .session-card svg { display: block; width: 100%; height: auto; overflow: visible; }
.axis { stroke: #8d908c; stroke-width: 1; }
.gridline { stroke: #d7d3c9; stroke-width: 1; stroke-dasharray: 2 5; }
.axis-label, .tick-label, .point-label {
  fill: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}
.axis-label { font-size: 11px; font-weight: 700; }
.tick-label { font-size: 10px; }
.point-label { fill: var(--ink); font-size: 10px; font-weight: 800; paint-order: stroke; stroke: var(--card); stroke-width: 3px; }
.point { stroke: var(--card); stroke-width: 3px; }

.conflict-chart { display: grid; gap: 0.85rem; }
.conflict-row { display: grid; grid-template-columns: 125px minmax(0, 1fr); gap: 0.8rem; align-items: center; }
.conflict-name { font-size: 0.84rem; font-weight: 780; }
.conflict-bars { display: grid; gap: 0.28rem; }
.conflict-track { position: relative; height: 10px; background: var(--paper-deep); border-radius: 999px; overflow: visible; }
.conflict-track::before { position: absolute; left: 22.73%; top: -2px; bottom: -2px; width: 1px; background: #777; content: ""; }
.conflict-fill { position: absolute; top: 0; height: 100%; border-radius: 999px; }
.conflict-fill.dynamic { background: var(--blue); }
.conflict-fill.static { background: var(--static); }
.conflict-fill.conditional { background: var(--conditional); }

.data-details { margin-top: 1rem; border: 1px solid var(--line); background: rgba(251, 250, 246, 0.7); }
.data-details summary { cursor: pointer; padding: 0.9rem 1rem; font-weight: 780; }
.table-wrap { overflow-x: auto; border-top: 1px solid var(--line); }
table { width: 100%; min-width: 760px; border-collapse: collapse; font-size: 0.82rem; }
caption { padding: 0.8rem 1rem; color: var(--muted); text-align: left; }
th, td { padding: 0.62rem 0.75rem; border-bottom: 1px solid #ddd8cd; text-align: right; white-space: nowrap; }
th:first-child, td:first-child { position: sticky; left: 0; background: var(--card); text-align: left; }
thead th { background: var(--paper-deep); font-size: 0.7rem; letter-spacing: 0.04em; text-transform: uppercase; }

.depth-section {
  width: 100%;
  max-width: none;
  padding-inline: max(1.25rem, calc((100vw - var(--max)) / 2));
  background: #e8ecea;
}
.session-legend { margin: -2rem 0 1.5rem; }
.line-key { width: 1.5rem; border-top: 3px solid; }
.line-correct { border-color: var(--teal); }
.line-wrong { border-color: var(--red); border-top-style: dashed; }
.session-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.session-card { padding: 1.15rem; border: 1px solid #bdc8c3; background: rgba(251, 250, 246, 0.91); }
.session-card h3 { margin-bottom: 0.2rem; font-size: 1.3rem; }
.session-card p { margin-bottom: 0.6rem; color: var(--muted); font-size: 0.74rem; }
.session-line-correct { fill: none; stroke: var(--teal); stroke-width: 3; }
.session-line-wrong { fill: none; stroke: var(--red); stroke-width: 2.5; stroke-dasharray: 6 4; }
.session-dot-correct { fill: var(--teal); }
.session-dot-wrong { fill: var(--red); }

.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.case-card { position: relative; padding: 1.5rem; border-top: 5px solid var(--blue); background: var(--card); box-shadow: var(--shadow); }
.case-card:nth-child(2) { border-color: var(--static); }
.case-card:nth-child(3) { border-color: var(--conditional); }
.case-card:nth-child(4) { border-color: var(--static); }
.case-card:nth-child(5) { border-color: var(--blue); }
.case-card:nth-child(6) { border-color: var(--conditional); }
.case-card p { color: #454a49; }
.case-mechanism { margin: 1.6rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line); font-size: 0.82rem; font-weight: 760; }

.provider-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.provider-card { display: grid; gap: 1rem; padding: 1.4rem; border: 1px solid var(--line); background: var(--card); }
.provider-card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.provider-card h3 { margin-bottom: 0.25rem; font-size: 1.7rem; }
.provider-score { color: var(--blue); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.78rem; font-weight: 800; }
.provider-verdict { margin: 0; font-weight: 780; }
.provider-process { margin: 0; color: var(--muted); font-size: 0.9rem; }
.provider-caveat { margin: 0; padding: 0.9rem; border-left: 3px solid var(--orange); background: #fff6ed; color: var(--muted); font-size: 0.86rem; }
.provider-field {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.provider-history { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.provider-history summary { cursor: pointer; padding: 0.65rem 0; font-size: 0.8rem; font-weight: 800; }
.provider-history p { margin: 0 0 0.8rem; color: var(--muted); font-size: 0.84rem; }
.provider-note-list { display: grid; gap: 0; margin: 0; }
.provider-note-list > div { padding: 0.8rem 0; border-top: 1px solid var(--line); }
.provider-note-list > div:first-child { border-top: 0; padding-top: 0.2rem; }
.provider-note-list dt {
  margin-bottom: 0.28rem;
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.67rem;
  font-weight: 850;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}
.provider-note-list dd { margin: 0; color: var(--muted); font-size: 0.84rem; }
.provider-link { font-size: 0.78rem; font-weight: 800; }

.scope-explainer {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.5fr);
  gap: 2rem;
  margin: 2.2rem 0 3.5rem;
  padding: 1.6rem;
  border: 1px solid #95a8b5;
  border-left: 6px solid var(--blue);
  background: rgba(255, 255, 255, 0.58);
}
.scope-explainer h3, .scope-explainer h4 { margin-bottom: 0.6rem; }
.scope-explainer h3 { font-size: 1.65rem; }
.scope-explainer h4 { color: var(--blue); font-size: 1rem; }
.scope-explainer p { margin-bottom: 0.75rem; color: var(--muted); }
.scope-explainer p:last-child { margin-bottom: 0; }
.scope-explainer code { padding: 0.05rem 0.25rem; background: var(--paper-deep); color: var(--ink); }
.scope-config-note { padding-top: 0.8rem; border-top: 1px solid var(--line); }
.provider-vocabulary { margin: 0 0 3.5rem; }
.vocabulary-heading { display: grid; grid-template-columns: 0.55fr 1.2fr 0.9fr; gap: 1.4rem; align-items: end; margin-bottom: 1.2rem; }
.vocabulary-heading h3, .vocabulary-heading p { margin-bottom: 0; }
.vocabulary-heading h3 { font-size: 1.65rem; }
.vocabulary-heading > p:last-child { color: var(--muted); font-size: 0.9rem; }
.vocabulary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.vocabulary-grid > div { min-height: 160px; padding: 1.15rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,0.45); }
.vocabulary-grid dt { margin-bottom: 0.45rem; color: var(--ink); font-family: var(--serif); font-size: 1.18rem; font-weight: 800; }
.vocabulary-grid dd { margin: 0; color: var(--muted); font-size: 0.84rem; }
.timeout-note {
  display: grid;
  grid-template-columns: minmax(210px, 0.6fr) minmax(0, 1.4fr);
  gap: 1.5rem;
  margin: 0 0 1.2rem;
  padding: 1.25rem 1.4rem;
  border: 1px solid #d6a57f;
  background: #fff6ed;
}
.timeout-note h3 { margin: 0; color: var(--red-dark); font-size: 1.25rem; }
.timeout-note p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.cost-chart { display: grid; gap: 1rem; }
.cost-row { display: grid; grid-template-columns: 120px minmax(0, 1fr) 118px; gap: 0.9rem; align-items: center; }
.cost-name { font-size: 0.84rem; font-weight: 780; }
.cost-track { height: 22px; background: var(--paper-deep); border-radius: 2px; }
.cost-bar { height: 100%; background: linear-gradient(90deg, var(--blue), var(--teal)); border-radius: 2px; }
.cost-total { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.74rem; text-align: right; }
.cost-note { grid-column: 2 / -1; margin: -0.65rem 0 0; color: var(--muted); font-size: 0.7rem; }
.cost-caveats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem 1.5rem;
  margin: 1.2rem 0 0;
  padding: 1.2rem 1.2rem 1.2rem 2.2rem;
  border: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.72);
  color: var(--muted);
  font-size: 0.78rem;
}
.cost-score-card { margin-top: 1rem; }

.method-section {
  width: 100%;
  max-width: none;
  padding-inline: max(1.25rem, calc((100vw - var(--max)) / 2));
  background: var(--navy);
  color: #f4f1e9;
}
.method-section .eyebrow { color: #ff9f5c; }
.method-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: #496278; }
.method-grid > div { padding: 1.5rem; background: var(--navy); }
.method-grid h3 { font-size: 1.35rem; }
.method-grid p { margin-bottom: 0; color: #cbd7df; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); margin: 4rem 0; border-block: 1px solid #557087; }
.timeline div { padding: 1.5rem 1.2rem; border-right: 1px solid #557087; }
.timeline div:last-child { border-right: 0; }
.timeline time { color: #ffae70; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.78rem; font-weight: 800; }
.timeline p { margin: 0.7rem 0 0; color: #d4dfe5; font-size: 0.86rem; }
.limitations, .sources { max-width: 920px; margin-top: 3rem; }
.limitations h3, .sources h3 { font-size: 1.5rem; }
.limitations li, .sources p { color: #d4dfe5; }
.sources { padding-top: 2rem; border-top: 1px solid #557087; }
.sources a { color: #c8e5ff; }

.decision-section { padding-top: 4.2rem; }
.decision-table-wrap { border: 1px solid var(--line); background: var(--card); }
.decision-table { min-width: 980px; table-layout: fixed; }
.decision-table th,
.decision-table td { vertical-align: top; text-align: left; white-space: normal; line-height: 1.45; }
.decision-table th:first-child { width: 130px; }
.decision-table th:nth-child(2) { width: 25%; }
.decision-table th:nth-child(3) { width: 34%; }
.decision-table th:nth-child(4) { width: 29%; }
.decision-table tbody tr:nth-child(-n+3) { background: rgba(45, 110, 163, 0.045); }
.production-boundary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  background: var(--line);
}
.production-boundary > div { padding: 1.35rem; background: var(--card); }
.production-boundary h3 { margin-bottom: 0.55rem; font-size: 1.3rem; }
.production-boundary p { margin: 0; color: var(--muted); }
.decision-close {
  margin: 1.5rem 0 0;
  padding: 1.25rem 1.4rem;
  border-left: 5px solid var(--teal);
  background: #e6f3f0;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 2.2rem;
  color: var(--muted);
  font-size: 0.78rem;
}
footer p { margin: 0; }
footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}
footer nav a {
  color: var(--muted);
  text-decoration: none;
}
footer nav a:hover { color: var(--red-dark); }

.noscript { position: fixed; right: 1rem; bottom: 1rem; max-width: 420px; padding: 1rem; background: var(--red-dark); color: white; }

@media (max-width: 900px) {
  /* scoped to the header: .mobile-nav carries these links below 900px, but the
     footer link row is not duplicated anywhere and has to stay visible */
  .site-header nav { display: none; }
  .mobile-nav { position: relative; display: block; }
  .mobile-nav summary { cursor: pointer; color: var(--muted); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase; }
  .mobile-nav > div {
    position: absolute;
    z-index: 30;
    top: calc(100% + 0.75rem);
    right: 0;
    display: grid;
    min-width: 210px;
    padding: 0.45rem;
    border: 1px solid var(--line);
    background: var(--card);
    box-shadow: var(--shadow);
  }
  .mobile-nav a { padding: 0.55rem 0.7rem; color: var(--ink); font-size: 0.82rem; font-weight: 750; text-decoration: none; }
  .early-guide { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .split-heading { grid-template-columns: 1fr; gap: 1.2rem; }
  .recommendation-grid, .case-grid, .conflict-definition-grid { grid-template-columns: 1fr; }
  .recommendation { min-height: auto; }
  .noise-note, .scope-explainer, .timeout-note, .vocabulary-heading, .top-safety { grid-template-columns: 1fr; gap: 0.8rem; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .timeline div:nth-child(2) { border-right: 0; }
  .benchmark-flow { grid-template-columns: 1fr; }
  .benchmark-flow li { grid-template-columns: auto 1fr; border-right: 0; border-bottom: 1px solid var(--line); }
  .benchmark-flow li:last-child { border-bottom: 0; }
}

@media (max-width: 720px) {
  .hero, .section, footer, .early-guide { width: min(calc(100% - 1.5rem), var(--max)); }
  .hero { padding: 2.6rem 0 2rem; }
  h1 { margin-bottom: 1rem; font-size: 2.2rem; }
  .hero-deck { margin-bottom: 1.35rem; font-size: 1rem; }
  .verdict, .depth-section, .method-section { width: 100%; padding-inline: 0.75rem; }
  .section { padding-block: 3.2rem; }
  .chart-grid, .session-grid, .provider-grid, .method-grid, .primer-columns, .scoring-intro, .metric-notes, .cost-caveats, .vocabulary-grid, .production-boundary { grid-template-columns: 1fr; }
  .vocabulary-grid > div { min-height: 0; }
  .outcome-definitions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chart-heading { align-items: flex-start; flex-direction: column; }
  .chart-card { overflow-x: auto; }
  .chart-card .chart-canvas-wrap { min-width: 0; }
  .outcome-row { grid-template-columns: 92px minmax(0, 1fr) 50px; gap: 0.45rem; }
  .outcome-name, .conflict-name { font-size: 0.72rem; }
  .conflict-row { grid-template-columns: 92px minmax(0, 1fr); }
  .cost-row { grid-template-columns: 85px minmax(0, 1fr) 92px; gap: 0.5rem; }
  .cost-note { grid-column: 1 / -1; }
  .timeline { grid-template-columns: 1fr; }
  .timeline div { border-right: 0; border-bottom: 1px solid #557087; }
  .timeline div:last-child { border-bottom: 0; }
  .decision-table-wrap { overflow: visible; }
  .decision-table { min-width: 0; table-layout: auto; }
  .decision-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }
  .decision-table,
  .decision-table tbody,
  .decision-table tr,
  .decision-table th,
  .decision-table td { display: block; width: 100% !important; }
  .decision-table caption { display: block; width: auto; padding: 0.9rem 1rem; }
  .decision-table tbody tr { padding: 1rem; border-bottom: 1px solid var(--line); }
  .decision-table tbody tr:last-child { border-bottom: 0; }
  .decision-table th,
  .decision-table td { position: static !important; padding: 0.4rem 0; border: 0; background: transparent !important; }
  .decision-table tbody th { color: var(--blue); font-family: var(--serif); font-size: 1.35rem; }
  .decision-table td::before {
    display: block;
    margin-bottom: 0.2rem;
    color: var(--muted);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 0.64rem;
    font-weight: 850;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .decision-table td:nth-child(2)::before { content: "Shortlist when"; }
  .decision-table td:nth-child(3)::before { content: "Main reason for caution"; }
  .decision-table td:nth-child(4)::before { content: "Tested configuration and workload"; }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media print {
  :root { --paper: white; --card: white; }
  body { background: white; font-size: 11pt; }
  .site-header { position: static; }
  nav { display: none; }
  .hero { min-height: auto; padding-top: 2rem; }
  .section { break-inside: avoid; padding-block: 2.2rem; }
  .verdict, .depth-section, .method-section { background: white !important; color: black !important; }
  .verdict p, .method-section p, .limitations li, .sources p { color: #333 !important; }
  .recommendation { background: white; color: black; border-color: #777; }
  .recommendation p:last-child { color: #333; }
  .chart-card, .case-card, .provider-card, .session-card { box-shadow: none; break-inside: avoid; }
  a { color: black; text-decoration: none; }
}