.manual-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
}

.manual-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border-accent) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-accent) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.22;
}

.manual-hero-grid {
  position: relative;
  min-height: 650px;
  padding-top: 72px;
  padding-bottom: 72px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(480px, 1.1fr);
  align-items: center;
  gap: 70px;
}

.manual-hero-copy {
  position: relative;
  z-index: 2;
}

.manual-hero-copy .badge {
  margin-bottom: 22px;
}

.manual-hero-copy .kicker {
  margin-bottom: 8px;
}

.manual-hero-copy .lead {
  max-width: 660px;
}

.manual-hero-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.manual-fact-row {
  margin: 34px 0 0;
  padding: 22px 0 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  border-top: 1px solid var(--color-border);
  list-style: none;
}

.manual-fact-row li {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.manual-fact-row strong {
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 15px;
}

.manual-fact-row span {
  color: var(--color-ink-muted);
  font-size: 11px;
}

.diagnostic-board {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border: 1px solid var(--color-terminal-border);
  border-radius: var(--radius-md);
  background: var(--color-terminal);
  color: var(--color-terminal-text);
  box-shadow: var(--shadow-deep);
  transform: rotate(-0.35deg);
}

.diagnostic-board::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: 76px;
  height: 76px;
  border-right: 1px solid var(--color-terminal-border);
  border-bottom: 1px solid var(--color-terminal-border);
  pointer-events: none;
}

.diagnostic-board-head {
  min-height: 54px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--color-terminal-border);
  background: var(--color-terminal-bar);
}

.diagnostic-board-head strong {
  margin-left: 10px;
  color: var(--color-terminal-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.diagnostic-light {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
}

.diagnostic-light.is-error {
  background: var(--color-error);
}

.diagnostic-light.is-warning {
  background: var(--color-warning);
}

.diagnostic-light.is-success {
  background: var(--color-success);
}

.diagnostic-board-body {
  padding: 26px;
  font-family: var(--font-mono);
}

.diagnostic-root,
.diagnostic-result {
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 1px solid var(--color-terminal-border);
  border-radius: var(--radius-sm);
}

.diagnostic-root {
  background: var(--color-terminal-bar);
}

.diagnostic-root span,
.diagnostic-result span {
  color: var(--color-terminal-muted);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.diagnostic-root strong,
.diagnostic-result strong {
  color: var(--color-terminal-text);
  font-size: 12px;
}

.diagnostic-branch {
  position: relative;
  padding: 28px 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.diagnostic-branch::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--color-terminal-border);
}

.diagnostic-branch > div {
  position: relative;
  min-height: 112px;
  padding: 15px;
  display: grid;
  align-content: start;
  gap: 7px;
  border: 1px solid var(--color-terminal-border);
  border-radius: var(--radius-sm);
  background: var(--color-terminal-bar);
}

.diagnostic-key {
  width: fit-content;
  padding: 2px 6px;
  border: 1px solid var(--color-terminal-border);
  border-radius: var(--radius-xs);
  color: var(--color-terminal-blue);
  font-size: 9px;
  font-weight: 800;
}

.diagnostic-branch strong {
  color: var(--color-terminal-text);
  font-size: 12px;
}

.diagnostic-branch small {
  color: var(--color-terminal-muted);
  font-size: 9px;
}

.diagnostic-result {
  border-color: var(--color-success);
}

.diagnostic-result strong {
  color: var(--color-terminal-green);
}

.manual-intro {
  padding-top: 48px;
}

.manual-intro-panel {
  padding: 28px 32px;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  background: var(--wash-accent);
}

.manual-intro-panel p {
  max-width: var(--reading-max);
  margin-inline: auto;
  color: var(--color-ink-muted);
}

.manual-intro-panel p:last-child {
  margin-bottom: 0;
}

.manual-intro-panel a {
  color: var(--color-accent-deep);
  font-weight: 780;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.manual-layout {
  padding-top: 36px;
  padding-bottom: var(--space-section);
}

.manual-layout > .toc-tabs {
  margin-bottom: 52px;
}

.manual-article {
  width: 100%;
  max-width: var(--reading-max);
  margin-inline: auto;
}

.manual-section {
  padding-top: 16px;
  padding-bottom: 82px;
  border-bottom: 1px solid var(--color-border);
}

.manual-section + .manual-section {
  padding-top: 82px;
}

.manual-section h2 {
  font-size: clamp(32px, 4vw, 46px);
}

.manual-section h3 {
  margin-top: 46px;
  font-size: 25px;
}

.manual-section p {
  color: var(--color-ink-muted);
  line-height: 1.9;
}

.manual-section p strong,
.manual-section li strong {
  color: var(--color-ink);
}

.manual-section .table-scroll {
  margin: 34px 0;
}

.manual-section pre {
  margin: 24px 0;
}

.ticket-template {
  margin: 34px 0;
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel-soft);
}

.ticket-template h3 {
  margin-top: 0;
}

.ticket-template pre {
  margin-bottom: 0;
}

.manual-summary {
  margin-top: 74px;
  padding: 32px;
  display: grid;
  grid-template-columns: minmax(180px, 0.55fr) minmax(0, 1.45fr);
  gap: 36px;
  border: 1px solid var(--color-terminal-border);
  border-radius: var(--radius-md);
  background: var(--color-terminal);
  color: var(--color-terminal-text);
  box-shadow: var(--shadow-panel);
}

.manual-summary h2 {
  margin-bottom: 0;
  color: var(--color-terminal-text);
  font-size: 32px;
}

.manual-summary .kicker {
  color: var(--color-terminal-blue);
}

.resolution-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  list-style: none;
}

.resolution-list li {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--terminal-rule);
  color: var(--color-terminal-muted);
}

.resolution-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.resolution-list strong {
  color: var(--color-terminal-text);
}

@media (max-width: 1050px) {
  .manual-hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }

  .diagnostic-board {
    width: min(720px, 100%);
    transform: none;
  }
}

@media (max-width: 768px) {
  .manual-hero-grid {
    min-height: auto;
    padding-top: 48px;
    padding-bottom: 56px;
  }

  .manual-fact-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .manual-layout > .toc-tabs {
    margin-bottom: 34px;
  }

  .manual-section {
    padding-bottom: 62px;
  }

  .manual-section + .manual-section {
    padding-top: 62px;
  }

  .manual-section h3 {
    margin-top: 38px;
  }

  .manual-summary {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .manual-hero::before {
    background-size: 28px 28px;
  }

  .manual-hero-actions .button {
    width: 100%;
  }

  .diagnostic-board-body {
    padding: 16px;
  }

  .diagnostic-root,
  .diagnostic-result {
    align-items: flex-start;
    flex-direction: column;
  }

  .diagnostic-branch {
    grid-template-columns: minmax(0, 1fr);
  }

  .diagnostic-branch::before {
    left: 18px;
  }

  .diagnostic-branch > div {
    min-height: 0;
  }

  .manual-intro-panel {
    padding: 22px 18px;
  }

  .manual-section h2 {
    font-size: 30px;
  }

  .manual-section h3 {
    font-size: 22px;
  }

  .ticket-template,
  .manual-summary {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .diagnostic-board {
    transform: none;
  }
}