/**
 * Public knowledge base (?m=924)
 */
@import url('landing-app-shared.css');

.ph-knowledge-base-page {
  overflow: visible !important;
  padding: var(--ph-header-content-gap) 45px 64px;
  background: var(--ph-bg);
}

main.ph-main-public:has(.ph-knowledge-base-page) {
  background: var(--ph-bg) !important;
  overflow: visible !important;
}

.ph-knowledge-base-page .kb-page {
  max-width: 1100px;
  margin: 0 auto;
}

.ph-knowledge-base-page .kb-header {
  margin-bottom: 28px;
}

.ph-knowledge-base-page .kb-title {
  margin: 0 0 8px;
  font-family: 'Syne', sans-serif;
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--ph-text-body) !important;
}

.ph-knowledge-base-page .kb-lead {
  margin: 0;
  max-width: 42rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--ph-text-muted);
}

.ph-knowledge-base-page .kb-layout {
  display: grid;
  grid-template-columns: minmax(168px, 200px) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.ph-knowledge-base-page .kb-nav {
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding-right: 4px;
}

.ph-knowledge-base-page .kb-nav-inner {
  padding: 14px 12px 16px;
  border: 1px solid var(--ph-border);
  border-radius: var(--ph-rl);
  background: var(--ph-card);
}

.ph-knowledge-base-page .kb-nav-group + .kb-nav-group {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--ph-border);
}

.ph-knowledge-base-page .kb-nav-group-title {
  margin: 0 0 6px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ph-accent-purple);
}

.ph-knowledge-base-page .kb-nav-list {
  display: block;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ph-knowledge-base-page .kb-nav-link {
  display: block;
  padding: 5px 0 5px 10px;
  margin-left: -10px;
  border-left: 2px solid transparent;
  font-size: 0.82rem;
  line-height: 1.35;
  color: var(--ph-text-muted);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.ph-knowledge-base-page .kb-nav-link:hover {
  color: var(--ph-text-body);
}

.ph-knowledge-base-page .kb-nav-link.is-active {
  color: var(--ph-accent);
  border-left-color: var(--ph-accent);
  font-weight: 600;
}

.ph-knowledge-base-page .kb-content {
  min-width: 0;
}

.ph-knowledge-base-page .kb-group-block + .kb-group-block {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--ph-border);
}

.ph-knowledge-base-page .kb-group-heading {
  margin: 0 0 18px;
  font-family: 'Syne', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ph-text-body);
  scroll-margin-top: 16px;
}

.ph-knowledge-base-page .kb-section {
  margin-bottom: 22px;
  padding: 20px 22px;
  border: 1px solid var(--ph-border);
  border-radius: var(--ph-rl);
  background: var(--ph-surface);
  scroll-margin-top: 16px;
}

.ph-knowledge-base-page .kb-section:last-child {
  margin-bottom: 0;
}

.ph-knowledge-base-page .kb-section-title {
  margin: 0 0 12px;
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ph-text-body);
}

.ph-knowledge-base-page .kb-section-body {
  /* base typography handled by .kb-info-content rules below */
}

.ph-knowledge-base-page .kb-info-content p {
  margin: 0 0 0.85em;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--ph-text-muted);
}

.ph-knowledge-base-page .kb-info-content p:last-child {
  margin-bottom: 0;
}

.ph-knowledge-base-page .kb-info-content ul,
.ph-knowledge-base-page .kb-info-content ol {
  display: block !important;
  margin: 0 0 0.85em !important;
  padding-left: 1.25rem !important;
  list-style: disc !important;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--ph-text-muted);
}

.ph-knowledge-base-page .kb-info-content ol {
  list-style: decimal !important;
}

.ph-knowledge-base-page .kb-info-content li {
  display: list-item !important;
  margin-bottom: 0.35em !important;
}

.ph-knowledge-base-page .kb-info-content h2 {
  margin: 1.25em 0 0.6em;
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ph-text-body);
}

.ph-knowledge-base-page .kb-info-content h2:first-child {
  margin-top: 0;
}

.ph-knowledge-base-page .kb-info-content h2.ph-info-stage {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ph-knowledge-base-page .kb-info-content strong {
  color: var(--ph-text-body);
  font-weight: 600;
}

.ph-knowledge-base-page .kb-info-content a {
  color: var(--ph-accent-blue);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.ph-knowledge-base-page .kb-info-content a:hover {
  color: var(--ph-accent);
}

.ph-knowledge-base-page .kb-info-content code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--ph-card);
  border: 1px solid var(--ph-border);
  color: var(--ph-text-body);
}

.ph-knowledge-base-page .kb-info-content .highlight {
  background: var(--ph-accent-dim);
  border-left: 3px solid var(--ph-accent);
  padding: 12px 16px;
  margin: 14px 0;
  border-radius: 0 var(--ph-r) var(--ph-r) 0;
  color: var(--ph-text-muted);
}

.ph-knowledge-base-page .kb-info-content .warning {
  background: rgba(240, 160, 32, 0.08);
  border-left: 3px solid var(--ph-amber);
  padding: 12px 16px;
  margin: 14px 0;
  border-radius: 0 var(--ph-r) var(--ph-r) 0;
  color: var(--ph-text-muted);
}

.ph-knowledge-base-page .kb-info-content .box {
  background: var(--ph-card);
  border: 1px solid var(--ph-border);
  border-radius: var(--ph-r);
  padding: 14px 16px;
  margin: 14px 0;
}

.ph-knowledge-base-page .kb-info-content .box-cyan { border-left: 3px solid var(--ph-accent); }
.ph-knowledge-base-page .kb-info-content .box-orange { border-left: 3px solid var(--ph-amber); }
.ph-knowledge-base-page .kb-info-content .box-red { border-left: 3px solid var(--ph-red); }

.ph-knowledge-base-page .kb-info-content .label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  font-weight: 600;
}

.ph-knowledge-base-page .kb-info-content .label-cyan { color: var(--ph-accent); }
.ph-knowledge-base-page .kb-info-content .label-orange { color: var(--ph-amber); }
.ph-knowledge-base-page .kb-info-content .label-red { color: var(--ph-red); }

.ph-knowledge-base-page .kb-info-content .stage-num {
  background: var(--ph-accent);
  color: var(--ph-bg);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  flex-shrink: 0;
}

.ph-knowledge-base-page .kb-info-content h2.stage-2 .stage-num { background: var(--ph-amber); }
.ph-knowledge-base-page .kb-info-content h2.stage-3 .stage-num { background: var(--ph-red); }

.ph-knowledge-base-page .kb-info-content .formula {
  background: var(--ph-surface);
  border: 1px solid var(--ph-border);
  border-radius: var(--ph-r);
  padding: 10px 14px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--ph-amber);
  margin: 10px 0;
  white-space: pre-wrap;
}

/* Data tables — override legacy global `table` rules from css.css (light zebra theme) */
.ph-knowledge-base-page .kb-table-wrap {
  margin: 12px 0 16px;
  border: 1px solid var(--ph-border);
  border-radius: var(--ph-r);
  background: var(--ph-card);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.ph-knowledge-base-page .kb-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse !important;
  margin: 0 !important;
  font-family: 'DM Sans', sans-serif !important;
  font-size: 0.85rem !important;
  background: transparent !important;
  box-shadow: none !important;
}

.ph-knowledge-base-page .kb-table thead tr {
  background: var(--ph-surface) !important;
}

.ph-knowledge-base-page .kb-table th {
  padding: 10px 12px !important;
  border: none !important;
  border-bottom: 1px solid var(--ph-border) !important;
  background: var(--ph-surface) !important;
  color: var(--ph-text-label) !important;
  font-family: 'IBM Plex Mono', monospace !important;
  font-size: 0.68rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.06em !important;
  text-transform: uppercase !important;
  text-align: left !important;
  vertical-align: bottom !important;
}

.ph-knowledge-base-page .kb-table td {
  padding: 10px 12px !important;
  border: none !important;
  border-bottom: 1px solid var(--ph-border) !important;
  background: transparent !important;
  color: var(--ph-text-muted) !important;
  text-align: left !important;
  vertical-align: top !important;
  line-height: 1.5 !important;
}

.ph-knowledge-base-page .kb-table tbody tr {
  background: transparent !important;
  transition: background-color 0.15s ease;
}

.ph-knowledge-base-page .kb-table tbody tr:last-child td {
  border-bottom: none !important;
}

.ph-knowledge-base-page .kb-table tbody tr:hover {
  background: var(--ph-accent-dim) !important;
}

.ph-knowledge-base-page .kb-table tbody tr:hover td {
  color: var(--ph-text-body) !important;
}

.ph-knowledge-base-page .kb-table .kb-table-mode {
  color: var(--ph-text-body) !important;
  font-family: 'Syne', sans-serif !important;
  font-weight: 700 !important;
  font-size: 0.88rem !important;
  white-space: nowrap;
}

.ph-knowledge-base-page .kb-table td strong {
  color: var(--ph-text-body);
  font-weight: 600;
}

.ph-knowledge-base-page .kb-info-content .muted {
  color: var(--ph-text-label) !important;
  font-size: 0.85rem;
}

.ph-knowledge-base-page .kb-info-content .legend {
  background: var(--ph-surface);
  border: 1px solid var(--ph-border);
  border-radius: var(--ph-r);
  padding: 10px 14px;
  margin: 12px 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
}

.ph-knowledge-base-page .kb-info-content .legend .row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 3px 0;
}

.ph-knowledge-base-page .kb-info-content .legend .key {
  color: var(--ph-text-label);
}

.ph-knowledge-base-page .kb-info-content .accent { color: var(--ph-accent); }
.ph-knowledge-base-page .kb-info-content .orange { color: var(--ph-amber); }
.ph-knowledge-base-page .kb-info-content .red { color: var(--ph-red); }
.ph-knowledge-base-page .kb-info-content .green { color: var(--ph-accent); }

.ph-knowledge-base-page .kb-section-body p {
  margin: 0 0 0.85em;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--ph-text-muted);
}

.ph-knowledge-base-page .kb-section-body p:last-child {
  margin-bottom: 0;
}

.ph-knowledge-base-page .kb-section-body ul,
.ph-knowledge-base-page .kb-section-body ol {
  margin: 0 0 0.85em;
  padding-left: 1.25rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--ph-text-muted);
}

.ph-knowledge-base-page .kb-section-body li {
  margin-bottom: 0.35em;
}

.ph-knowledge-base-page .kb-section-body strong {
  color: var(--ph-text-body);
  font-weight: 600;
}

.ph-knowledge-base-page .kb-section-body a {
  color: var(--ph-accent-blue);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.ph-knowledge-base-page .kb-section-body a:hover {
  color: var(--ph-accent);
}

@media (max-width: 820px) {
  .ph-knowledge-base-page {
    padding: var(--ph-header-content-gap) 24px 48px;
  }

  .ph-knowledge-base-page .kb-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .ph-knowledge-base-page .kb-nav {
    position: static;
    max-height: none;
  }

  .ph-knowledge-base-page .kb-nav-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    padding: 12px;
  }

  .ph-knowledge-base-page .kb-nav-group {
    flex: 1 1 140px;
    min-width: 130px;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
  }

  .ph-knowledge-base-page .kb-nav-group-title {
    margin-bottom: 4px;
  }
}