/* ═══════════════════════════════════════════════════════════════════════════
   DNS Panopticon — Guides
   Shared styles for the support hub sidebar layout and guide article pages.
   ═══════════════════════════════════════════════════════════════════════════ */

.docs-layout {
  flex: 1;
  display: grid;
  grid-template-columns: 240px 1fr;
  width: 100%;
  align-items: start;
}

.docs-sidebar {
  position: sticky;
  top: var(--nav-height);
  height: calc(100vh - var(--nav-height));
  overflow-y: auto;
  padding: 36px 20px 36px 28px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.docs-sidebar-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.docs-sidebar-header h1 {
  font-size: 15px;
  font-weight: 800;
  color: var(--txt);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.docs-sidebar-header p {
  font-size: 11.5px;
  color: var(--txt-3);
  line-height: 1.5;
}

.toc-nav-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--txt-4);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.toc-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--txt-2);
  text-decoration: none;
  transition: background var(--t-fast), color var(--t-fast);
  cursor: pointer;
}

.toc-link:hover { background: var(--surface2); color: var(--txt); }
.toc-link.active {
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  color: var(--primary);
  font-weight: 600;
}

.toc-link-icon {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}

.docs-content {
  padding: 36px 48px 64px 40px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.guide-section-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.guide-section-panel-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  border-bottom: 1px solid transparent;
  transition: background var(--t-fast);
}

.guide-section-panel-summary::-webkit-details-marker { display: none; }

.guide-section-panel[open] .guide-section-panel-summary {
  border-bottom-color: var(--border);
  background: var(--surface);
}

.guide-section-panel-summary:hover { background: var(--surface2); }
.guide-section-panel-summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

.support-card-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
}

.guide-section-panel-summary h2 {
  font-size: 15px;
  font-weight: 700;
  color: var(--txt);
  flex: 1;
  margin: 0;
}

.guide-summary-chevron {
  color: var(--txt-3);
  flex-shrink: 0;
  transition: transform var(--t-base);
}

.guide-section-panel[open] .guide-summary-chevron { transform: rotate(180deg); }

.guide-section-panel-body {
  padding: 24px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.guide-section-panel p {
  font-size: 13.5px;
  color: var(--txt-2);
  line-height: 1.75;
  margin-bottom: 14px;
}

.guide-section-panel p:last-child { margin-bottom: 0; }

.guide-section-panel a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.guide-section-panel a:hover { text-decoration: underline; }

.guide-overview-section .guide-section-panel-body {
  gap: 0;
}

.guide-hub-layout {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.guide-hub-header {
  margin-bottom: 0;
}

.guide-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px 28px;
  box-shadow: 0 12px 30px color-mix(in srgb, var(--txt) 4%, transparent);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section-heading h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--txt);
}

.section-heading p {
  max-width: 54ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--txt-3);
}

.section-kicker {
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 10px;
}

.guide-grid--single {
  grid-template-columns: minmax(0, 420px);
}

.guide-grid--two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.guide-card,
.related-guide {
  text-decoration: none;
}

.guide-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 100%;
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface2) 84%, white) 0%, var(--surface) 100%);
  transition: transform .12s, border-color .12s, box-shadow .12s;
}

.guide-card:hover,
.related-guide:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--primary) 34%, var(--border));
  box-shadow: 0 14px 28px color-mix(in srgb, var(--txt) 8%, transparent);
  text-decoration: none;
}

.related-guide:hover {
  transform: none;
  border-color: var(--border);
  box-shadow: none;
  color: var(--primary);
}

.related-guide:hover::after {
  color: var(--primary);
  transform: translateX(3px);
}

.guide-card-tag {
  display: inline-flex;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.guide-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--txt);
  line-height: 1.3;
  margin: 0;
}

.guide-card p,
.guide-card code {
  font-size: 14px;
  line-height: 1.7;
  color: var(--txt-3);
}

.guide-card-meta {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}

.breadcrumb-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 12px;
  color: var(--txt-4);
}

.breadcrumb-row a {
  color: var(--primary);
  text-decoration: none;
}

.breadcrumb-row a:hover {
  text-decoration: underline;
}

.guide-shell {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.guide-header {
  margin-bottom: 0;
}

/* Flatten support article eyebrow so it reads like editorial metadata. */
.guide-shell .page-eyebrow {
  display: block;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  margin-bottom: 10px;
  font-size: 10.5px;
  letter-spacing: 0.11em;
}

.guide-article .prose-section h2,
.related-guides-wrap h2 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: normal;
  text-transform: none;
  color: var(--txt);
  margin-bottom: 14px;
}

.guide-article .prose-section h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--txt);
  margin: 14px 0 8px;
}

/* Remove rounded/boxed highlight treatments inside support articles. */
.guide-article .prose-section--highlight {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.guide-article .prose-section--highlight h2 {
  margin-bottom: 12px;
}

.guide-article .callout-box,
.guide-article .callout-box--tip {
  margin-top: 14px;
  padding: 0 0 0 14px;
  border: 0;
  border-left: 2px solid color-mix(in srgb, var(--primary) 36%, var(--border));
  border-radius: 0;
  background: transparent;
}

.guide-article .callout-box--tip {
  border-left-color: color-mix(in srgb, #059669 42%, var(--border));
}

.command-block {
  margin-top: 12px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #09111f;
  color: #e5eefb;
  overflow-x: auto;
  font-family: ui-monospace, 'Cascadia Code', monospace;
  font-size: 12px;
  line-height: 1.8;
}

.callout-box {
  margin-top: 14px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--primary) 20%, var(--border));
  background: color-mix(in srgb, var(--primary) 7%, var(--surface));
}

.callout-box--tip {
  border-color: color-mix(in srgb, #059669 25%, var(--border));
  background: color-mix(in srgb, #059669 7%, var(--surface));
}

.callout-box strong {
  display: block;
  margin-bottom: 6px;
  color: var(--txt);
}

.callout-box p { margin: 0; }

.guide-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  font-size: 14px;
}

.guide-table th,
.guide-table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.guide-table thead th {
  background: var(--surface2);
  color: var(--txt);
  font-weight: 700;
}

.guide-table tbody tr:last-child td { border-bottom: none; }

.diagram-card,
.diagram-stack {
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface2);
  padding: 16px;
}

.diagram-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.diagram-step {
  flex: 1 1 160px;
  min-width: 160px;
  padding: 14px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
  line-height: 1.5;
  color: var(--txt-2);
}

.diagram-arrow {
  color: var(--primary);
  font-weight: 800;
}

.diagram-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.diagram-stack-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.diagram-stack-row span {
  color: var(--txt-3);
  font-size: 13px;
}

.diagram-stack-row strong {
  color: var(--txt);
  font-size: 13px;
}

.faq-list details {
  border-top: 1px solid var(--border);
  padding: 14px 0;
}

.faq-list details:first-of-type {
  padding-top: 0;
  border-top: none;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--txt);
}

.faq-list summary + p {
  margin-top: 10px;
}

.related-guides {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--border);
}

.related-guide {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  color: var(--txt);
  font-weight: 600;
  transition: color .12s ease;
}

.related-guide::after {
  content: '→';
  color: var(--txt-4);
  transition: transform .12s ease, color .12s ease;
}

.related-guide:last-child { border-bottom: 0; }

@media (max-width: 960px) {
  .guide-grid,
  .related-guides {
    grid-template-columns: 1fr 1fr;
  }

  .guide-grid--single,
  .guide-grid--two-up {
    grid-template-columns: 1fr 1fr;
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .docs-layout { grid-template-columns: 1fr; }

  .docs-sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 20px 20px 16px;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
  }

  .docs-sidebar-header { display: none; }
  .toc-nav-label { display: none; }

  .toc-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
  }

  .docs-content { padding: 24px 20px 40px; }
}

@media (max-width: 640px) {
  .guide-grid,
  .related-guides,
  .guide-grid--single,
  .guide-grid--two-up {
    grid-template-columns: 1fr;
  }

  .guide-section,
  .prose-section,
  .page-header,
  .guide-section-panel-body,
  .guide-section-panel-summary {
    padding-left: 20px;
    padding-right: 20px;
  }

  .guide-section,
  .prose-section,
  .page-header {
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .diagram-card,
  .diagram-stack {
    padding: 14px;
  }

  .guide-table {
    display: block;
    overflow-x: auto;
  }
}

/* Scoring section — dynamic loading state */
.scoring-loading {
  color: var(--txt-4);
  font-style: italic;
  font-size: 13px;
  padding: 10px 12px;
}

.scoring-subheading {
  margin-top: 20px !important;
}