/* A quiet editorial layout, scoped to the public GEO guide. */
.guide {
  max-width: 1120px;
  padding-block: 30px 64px;
}
.guide-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: #747a92;
  font-size: 12px;
}
.guide-breadcrumb a:hover { color: #4148ed; }
.guide-breadcrumb [aria-current] { color: #454c72; }
.guide-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 210px;
  align-items: end;
  gap: 48px;
  padding-block: 32px 38px;
}
.guide-hero .eyebrow {
  color: #6066a6;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.8px;
}
.guide-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(30px, 3.5vw, 44px);
  font-weight: 600;
  line-height: 1.42;
  letter-spacing: -1.2px;
  white-space: nowrap;
}
.guide-hero h1 em { color: #4148ed; font-style: normal; }
.guide-lead {
  max-width: 40em;
  color: #676e86;
  font-size: 15px;
  line-height: 1.95;
  text-wrap: pretty;
}
.guide-meta {
  padding: 6px 0 4px 24px;
  border-left: 1px solid #d8ddec;
}
.guide-meta-label {
  margin-bottom: 14px;
  color: #363e65;
  font-size: 12px;
  font-weight: 600;
}
.guide-byline { color: #787e95; font-size: 11px; line-height: 1.9; }
.guide-byline p + p { margin-top: 4px; }
.guide-start {
  display: inline-flex;
  align-items: center;
  gap: 26px;
  margin-top: 22px;
  color: #4148ed;
  font-size: 12px;
  font-weight: 600;
}
.guide-start span { transition: transform .2s; }
.guide-start:hover span { transform: translateY(3px); }
.guide-layout {
  display: grid;
  grid-template-columns: 196px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}
.guide-toc {
  position: sticky;
  top: 112px;
  display: grid;
  gap: 5px;
  padding-top: 14px;
  font-size: 12px;
}
.guide-toc > p {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 12px 14px;
  color: #4c5375;
  font-size: 11px;
  font-weight: 600;
}
.guide-toc > p span {
  color: #8a90a6;
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 1px;
}
.guide-toc a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 42px;
  padding: 8px 12px;
  border-radius: 7px;
  color: #646b85;
  transition: color .2s, background .2s;
}
.guide-toc a > span { color: #9399b0; font-size: 10px; font-variant-numeric: tabular-nums; }
.guide-toc a:hover,
.guide-toc a:focus-visible { background: #e6e9f5; color: #353d9c; }
.guide-layout:not(:has(.guide-content :target)) .guide-toc a[href="#definition"],
.guide-layout:has(#definition:target) .guide-toc a[href="#definition"],
.guide-layout:has(#comparison:target) .guide-toc a[href="#comparison"],
.guide-layout:has(#workflow:target) .guide-toc a[href="#workflow"],
.guide-layout:has(#measurement:target) .guide-toc a[href="#measurement"],
.guide-layout:has(#service-facts:target) .guide-toc a[href="#service-facts"],
.guide-layout:has(#sources:target) .guide-toc a[href="#sources"] {
  background: #e3e7fc;
  color: #3c44be;
  font-weight: 600;
}
.guide-toc a:hover > span,
.guide-layout:has(:target) .guide-toc a > span { color: inherit; }
.guide-content {
  min-width: 0;
  padding: 34px 40px 36px;
  border: 1px solid #e0e4ef;
  border-radius: 18px;
  background: #fff;
  font-size: 15px;
}
.guide-content section { max-width: 680px; margin-inline: auto; scroll-margin-top: 24px; }
.guide-content section + section { margin-top: 36px; padding-top: 34px; border-top: 1px solid #e8eaf2; }
.guide-section-index {
  margin-bottom: 9px;
  color: #797fa1;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 1.35px;
}
.guide-content h2 { color: #242b59; font-size: 25px; font-weight: 600; line-height: 1.5; letter-spacing: -.5px; }
.guide-content h3 { color: #30375f; font-size: 16px; font-weight: 600; line-height: 1.65; }
.guide-content p:not(.guide-section-index) { margin-top: 15px; color: #606780; line-height: 2; }
.guide-content strong { color: #343b65; font-weight: 600; }
.guide-content ul,
.guide-content ol { margin: 20px 0; padding-left: 21px; color: #606780; line-height: 2; }
.guide-content li { padding-left: 4px; }
.guide-content li + li { margin-top: 13px; }
.guide-content li::marker { color: #9ba1bc; }
.guide-content a:not(.button) { color: #3d46c8; text-decoration: underline; text-underline-offset: 4px; }
.guide-content a:not(.button):hover { color: #232ba0; text-decoration-thickness: 2px; }
.guide-note {
  margin-top: 22px;
  padding: 18px 22px;
  border-left: 3px solid #757bec;
  border-radius: 0 10px 10px 0;
  background: #f5f6fb;
}
.guide-note > strong { font-size: 14px; }
.guide-note p:not(.guide-section-index) { margin-top: 8px; font-size: 13px; line-height: 1.95; }
.guide-table {
  overflow-x: auto;
  margin: 22px 0 18px;
  border: 1px solid #e1e5f0;
  border-radius: 10px;
  scrollbar-width: thin;
  scrollbar-color: #b6bce0 #f5f6fb;
}
.guide-table table { width: 100%; min-width: 500px; border-collapse: collapse; color: #606780; font-size: 13px; line-height: 1.85; }
.guide-table caption { padding: 13px 18px; background: #f5f6fb; color: #363d68; font-size: 12px; font-weight: 600; text-align: left; }
.guide-table th,
.guide-table td { padding: 14px 16px; border-top: 1px solid #e6e8f1; text-align: left; vertical-align: top; }
.guide-table thead th { color: #3b426e; font-size: 12px; font-weight: 600; }
.guide-table tbody th { width: 96px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.guide-table tr > :nth-child(3) { background: #f5f6ff; }
.guide-table thead th:nth-child(3) { color: #4148ce; }
.guide-content .guide-table-hint { display: none; }
.guide-content .guide-steps { margin-block: 22px 0; padding-left: 28px; list-style-type: decimal-leading-zero; }
.guide-steps li { padding-left: 10px; }
.guide-steps li::marker { color: #555dd6; font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; }
.guide-steps li + li { margin-top: 20px; padding-top: 20px; border-top: 1px solid #edeef5; }
.guide-steps li p:not(.guide-section-index) { margin-top: 7px; font-size: 14px; }
.guide-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid #e8eaf2;
}
.guide-actions .button { gap: 16px; }
.guide-actions .text-link { margin: 0; font-size: 13px; }
.guide-sources { font-size: 13px; }
.guide-sources ol { margin-bottom: 22px; }
.guide-sources li p:not(.guide-section-index) { margin-top: 5px; font-size: 12px; }
.guide-sources a { overflow-wrap: anywhere; }
.guide-sources li { scroll-margin-top: 24px; }
.guide-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  max-width: 1120px;
  padding-block: 24px;
  border-top: 1px solid #dce0ee;
  color: #767d96;
  font-size: 11px;
}
@media (max-width: 1000px) {
  .guide-hero { grid-template-columns: minmax(0, 1fr) 190px; gap: 30px; }
  .guide-layout { grid-template-columns: 166px minmax(0, 1fr); gap: 24px; }
  .guide-toc a { gap: 10px; padding-inline: 10px; }
  .guide-toc > p { gap: 10px; margin-inline: 10px; }
  .guide-content { padding: 30px 28px; }
}
@media (max-width: 760px) {
  .guide { padding-block: 24px 42px; }
  .guide-hero { grid-template-columns: minmax(0, 1fr); gap: 24px; padding-block: 28px 26px; }
  .guide-hero h1 { font-size: clamp(16px, 5.1vw, 38px); letter-spacing: -.8px; }
  .guide-lead { max-width: 40em; font-size: 14px; }
  .guide-meta { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 0 0; border-left: 0; border-top: 1px solid #d8ddec; }
  .guide-meta-label { display: none; }
  .guide-byline p + p { margin-top: 0; }
  .guide-start { flex: none; gap: 14px; margin-top: 0; }
  .guide-layout { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .guide-toc { position: static; display: flex; gap: 7px; overflow-x: auto; padding: 2px 1px 10px; scrollbar-width: thin; scrollbar-color: #bec5e2 transparent; }
  .guide-toc > p { display: none; }
  .guide-toc a { flex: none; gap: 8px; min-height: 40px; padding: 8px 12px; border: 1px solid #e0e4ef; background: #f8f9fd; }
  .guide-content { padding: 28px 24px; border-radius: 14px; font-size: 14px; }
  .guide-content h2 { font-size: 23px; }
  .guide-content h3 { font-size: 15px; }
  .guide-content section + section { margin-top: 30px; padding-top: 28px; }
  .guide-note { padding: 16px 18px; }
  .guide-table { margin-bottom: 0; }
  .guide-content .guide-table-hint { display: flex; justify-content: space-between; margin-top: 8px; color: #848ba4; font-size: 10px; }
  .guide-actions { align-items: stretch; gap: 16px; }
  .guide-actions .button { width: 100%; }
  .guide-actions .text-link { margin-inline: auto; }
}
@media (max-width: 420px) {
  .guide-content { padding: 24px 18px; }
  .guide-content h2 { font-size: 21px; }
  .guide-content .guide-steps { padding-left: 24px; }
  .guide-steps li { padding-left: 6px; }
  .guide-steps li p:not(.guide-section-index) { font-size: 13px; }
  .guide-note { padding: 15px 16px; }
  .guide-footer { gap: 10px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .guide-toc a,
  .guide-start span { transition: none; }
}