/* Research-to-Artifact System — page-specific component styles.
   Shared section/button/prose/card/triad/timeline rules live in core.css's
   SHARED section; this file only holds what's genuinely unique to this page. */

.hero h1 {
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.status-line {
  max-width: 560px;
  margin: 0 auto var(--space-5);
}

/* Representative-study cards (compact in the carousel, full in the
   overlay-card.wide — both reuse shared .diagram-card / .overlay-card) */

.overlay-card.wide h3 {
  font-size: 18px;
  margin: 0 0 var(--space-3);
}

.study-status-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  margin-bottom: var(--space-4);
}

.study-status-row .state-badge {
  margin-bottom: 0;
}

.study-status-note {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin: 0;
}

.study-hero {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  margin: 0 0 var(--space-4);
}

.study-stats {
  display: flex;
  gap: var(--space-5);
  margin: 0 0 var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.study-stat {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 22px;
  color: var(--accent);
  line-height: 1.2;
}

.stat-label {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.study-field {
  margin-bottom: var(--space-4);
}

.study-field-label {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.study-field p {
  font-size: 13.5px;
  color: var(--text-primary);
  line-height: 1.55;
  margin: 0;
}

.study-enabled {
  margin-top: var(--space-5);
  background: var(--code-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.se-label {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.study-enabled p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

/* Operating-model diagram */

.om-diagram {
  margin: 0;
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}

.om-diagram svg {
  display: block;
  width: 100%;
  height: auto;
  color: var(--text-primary);
}

.om-diagram figcaption {
  text-align: center;
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-top: var(--space-3);
}

.om-node-box {
  fill: var(--surface);
  stroke: var(--border);
  stroke-width: 1.5;
}

.om-node-label {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  fill: currentColor;
}

.om-loop-zone {
  fill: var(--code-bg);
  stroke: none;
}

.om-flow-line {
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
}

.om-loop-line {
  stroke: var(--accent);
  stroke-width: 1.75;
  fill: none;
}

.om-loop-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  fill: var(--accent);
  font-weight: 500;
}

.om-plain-label {
  font-family: var(--font-mono);
  font-size: 10px;
  fill: var(--text-secondary);
}

/* Failure-mode grid */

.failure-grid {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
}

.failure-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
  flex: 1;
  min-width: 220px;
  max-width: 280px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  text-align: left;
}

/* Method-selection gate labels */

.decision-card .dc-condition {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-2);
}

/* Evidence & claim discipline */

.grade-row {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin: var(--space-5) 0;
}

.grade-badge {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-3) var(--space-4);
  min-width: 190px;
  max-width: 220px;
  text-align: left;
}

.grade-badge .grade-letter {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 13px;
  color: var(--accent);
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 24px;
  height: 24px;
  line-height: 22px;
  text-align: center;
  margin-bottom: var(--space-2);
}

.grade-badge p {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
}

.rule-list {
  max-width: var(--reading-width);
  margin: 0 auto;
  padding-left: 18px;
}

.rule-list li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

/* Decision authority hierarchy + blocker standard */

.authority-block {
  max-width: 640px;
  margin: var(--space-7) auto 0;
}

.authority-label {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-3);
  text-align: center;
}

.authority-ladder {
  list-style: none;
  counter-reset: authority;
  margin: 0 0 var(--space-6);
  padding: 0;
}

.authority-ladder li {
  counter-increment: authority;
  position: relative;
  padding: 8px 0 8px 38px;
  font-size: 14px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
}

.authority-ladder li:last-child { border-bottom: none; }

.authority-ladder li::before {
  content: counter(authority);
  position: absolute;
  left: 0;
  top: 7px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  text-align: center;
  line-height: 20px;
}

.blocker-callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}

.blocker-callout .bc-label {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-2);
}

.blocker-callout p {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0 0 var(--space-3);
}

.blocker-callout p:last-child { margin-bottom: 0; }

/* Placeholder / pending-content marker */

.pending-block {
  max-width: 640px;
  margin: 0 auto;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}

.pending-block p {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}