.guide-body {
  --guide-reading-width: 760px;
}

.guide-main {
  padding: 42px 0 96px;
}

.guide-shell {
  max-width: 1080px;
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 800;
}

.guide-breadcrumbs {
  margin-bottom: 54px;
  color: var(--muted);
  font-size: 0.78rem;
}

.guide-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.guide-breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--line-strong);
}

.guide-breadcrumbs a:hover,
.guide-breadcrumbs a:focus-visible {
  color: var(--blue);
  text-decoration: underline;
}

.guide-page-header {
  max-width: 880px;
  padding-bottom: 58px;
}

.guide-page-header h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(2.65rem, 7vw, 5.7rem);
  line-height: 1.02;
  letter-spacing: -0.055em;
}

.guide-page-header h1 strong {
  color: var(--blue);
}

.guide-lead {
  max-width: 710px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.guide-section,
.guide-principles {
  padding: 64px 0;
  border-top: 1px solid var(--line);
}

.guide-section-heading {
  margin-bottom: 28px;
}

.guide-section-heading h2 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.guide-heading-split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.guide-heading-split > p {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
}

.guide-topic-card,
.guide-roadmap a {
  display: grid;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.5);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.guide-topic-card {
  grid-template-columns: 100px minmax(0, 1fr) auto;
  gap: 28px;
  padding: 34px;
}

.guide-topic-card:hover,
.guide-topic-card:focus-visible,
.guide-roadmap a:hover,
.guide-roadmap a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--blue);
  background: var(--paper-blue);
}

.guide-topic-number {
  font-family: Georgia, serif;
  font-size: 3rem;
  color: var(--blue);
}

.guide-card-label,
.guide-aside-label {
  margin: 0 0 7px;
  color: var(--blue);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.guide-topic-card h3,
.guide-roadmap h3,
.guide-principle-grid h3 {
  margin: 0;
  font-size: 1.25rem;
}

.guide-topic-card p:last-child,
.guide-roadmap p,
.guide-principle-grid p {
  margin: 7px 0 0;
  color: var(--muted);
}

.guide-card-arrow {
  font-size: 1.7rem;
  color: var(--blue);
}

.guide-principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.guide-principle-grid article {
  padding: 26px;
  border-top: 2px solid var(--blue);
  background: rgba(255, 255, 255, 0.34);
}

.guide-principle-grid article > span {
  display: block;
  margin-bottom: 30px;
  color: var(--muted);
  font-family: Georgia, serif;
}

.guide-roadmap {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.guide-roadmap a {
  grid-template-columns: 68px minmax(0, 1fr) auto;
  gap: 20px;
  padding: 24px 28px;
}

.guide-roadmap-order {
  color: var(--blue);
  font-family: Georgia, serif;
  font-size: 1.45rem;
}

.guide-note {
  max-width: 780px;
  margin-top: 32px;
  padding: 24px 28px;
  border-left: 3px solid var(--blue);
  background: var(--blue-soft);
}

.guide-note p:last-child {
  margin: 0;
}

.guide-dates {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin: 34px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.guide-dates div {
  display: flex;
  gap: 9px;
}

.guide-dates dt {
  color: var(--muted);
}

.guide-dates dd {
  margin: 0;
  font-weight: 700;
}

.guide-article-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--guide-reading-width)) minmax(220px, 1fr);
  align-items: start;
  gap: clamp(38px, 6vw, 76px);
  padding: 58px 0;
  border-top: 1px solid var(--line);
}

.guide-prose {
  min-width: 0;
  font-size: 1.02rem;
}

.guide-prose h2 {
  margin: 3.2em 0 0.8em;
  font-size: clamp(1.55rem, 3vw, 2.15rem);
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.guide-prose h2:first-child {
  margin-top: 0;
}

.guide-prose p,
.guide-prose li {
  max-width: 72ch;
}

.guide-prose a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.guide-prose ol,
.guide-prose ul {
  padding-left: 1.4em;
}

.guide-prose li + li {
  margin-top: 0.45em;
}

.guide-system-figure {
  max-width: 980px;
  margin: 42px 0 54px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.5);
}

.guide-system-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: guide-system-step;
}

.guide-system-flow li {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: center;
  text-align: center;
  counter-increment: guide-system-step;
}

.guide-system-flow li:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 30px;
  right: -20px;
  color: var(--blue);
  font-size: 1.2rem;
  font-weight: 800;
}

.guide-system-icon {
  display: grid;
  width: 68px;
  height: 68px;
  margin-bottom: 14px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--paper);
  color: var(--blue);
}

.guide-system-icon svg {
  width: 44px;
  height: 44px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.guide-system-flow small {
  color: var(--blue);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.guide-system-flow strong {
  margin-top: 4px;
  line-height: 1.35;
}

.guide-system-flow li > span:last-child {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.guide-system-result .guide-system-icon {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.guide-system-figure figcaption {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.guide-domain-anatomy {
  display: flex;
  width: fit-content;
  max-width: 100%;
  align-items: end;
  gap: 8px;
  margin: 28px 0 36px;
  padding: 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.5);
}

.guide-domain-anatomy span {
  display: grid;
  gap: 5px;
}

.guide-domain-anatomy strong,
.guide-domain-anatomy b {
  color: var(--blue);
  font-size: clamp(1.65rem, 6vw, 2.65rem);
  line-height: 1;
}

.guide-domain-anatomy small {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.guide-verification-note,
.guide-pr-disclosure {
  margin: 32px 0;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius-sm);
  background: var(--blue-soft);
}

.guide-verification-note p,
.guide-pr-disclosure p {
  margin: 6px 0 0;
}

.guide-pr-disclosure strong {
  color: var(--blue);
  letter-spacing: 0.12em;
}

.guide-checkpoint-grid,
.guide-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0 36px;
}

.guide-checkpoint-grid article,
.guide-choice-grid section {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.42);
}

.guide-checkpoint-grid article > span {
  color: var(--blue);
  font-family: Georgia, serif;
  font-size: 1.3rem;
}

.guide-checkpoint-grid h3,
.guide-choice-grid h3 {
  margin: 12px 0 8px;
  font-size: 1.1rem;
}

.guide-checkpoint-grid p,
.guide-choice-grid p {
  margin: 0;
  color: var(--muted);
}

.guide-choice-grid p + p {
  margin-top: 10px;
}

.guide-hosting-grid {
  display: grid;
  gap: 18px;
  margin: 30px 0 42px;
}

.guide-hosting-card {
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.5);
}

.guide-hosting-card header {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.guide-hosting-card h3 {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
}

.guide-status {
  display: inline-block;
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 800;
}

.guide-hosting-card dl {
  margin: 0;
}

.guide-hosting-card dl > div {
  display: grid;
  grid-template-columns: minmax(130px, 0.33fr) minmax(0, 1fr);
  gap: 20px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.guide-hosting-card dt {
  font-weight: 800;
}

.guide-hosting-card dd {
  margin: 0;
  color: var(--muted);
}

.guide-hosting-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.guide-hosting-actions a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
}

.guide-hosting-actions a:hover,
.guide-hosting-actions a:focus-visible {
  border-color: var(--blue);
  color: var(--blue);
}

.guide-hosting-actions .guide-hosting-cta {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.guide-tracking-pixel {
  position: absolute;
  width: 1px;
  height: 1px;
}

.guide-aside {
  position: sticky;
  top: 108px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.42);
  color: var(--muted);
  font-size: 0.88rem;
}

.guide-aside p {
  margin-top: 0;
}

.guide-aside a {
  color: var(--blue);
  font-weight: 800;
}

.guide-article-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.guide-article-nav--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.guide-article-nav > * {
  display: flex;
  min-height: 104px;
  flex-direction: column;
  justify-content: center;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.guide-article-nav > :last-child {
  text-align: right;
}

.guide-article-nav a:hover,
.guide-article-nav a:focus-visible {
  border-color: var(--blue);
  background: var(--paper-blue);
}

.guide-article-nav small {
  color: var(--muted);
}

.guide-article-nav span {
  font-weight: 800;
}

.guide-article-nav .is-empty {
  opacity: 0.62;
}

@media (max-width: 980px) {
  .guide-article-layout {
    grid-template-columns: 1fr;
  }

  .guide-aside {
    position: static;
    max-width: var(--guide-reading-width);
  }

  .guide-system-flow {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .guide-system-flow li {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    align-items: center;
    gap: 0 16px;
    min-height: 82px;
    padding: 11px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    text-align: left;
  }

  .guide-system-flow li:not(:last-child)::after {
    content: "↓";
    top: auto;
    right: auto;
    bottom: -19px;
    left: 36px;
    z-index: 1;
  }

  .guide-system-icon {
    grid-column: 1;
    grid-row: 1 / span 3;
    width: 54px;
    height: 54px;
    margin: 0;
    border-radius: 14px;
  }

  .guide-system-icon svg {
    width: 36px;
    height: 36px;
  }

  .guide-system-flow small,
  .guide-system-flow strong,
  .guide-system-flow li > span:last-child {
    grid-column: 2;
  }

  .guide-system-flow li > span:last-child {
    margin-top: 2px;
  }
}

@media (max-width: 720px) {
  .guide-main {
    padding: 28px 0 72px;
  }

  .guide-breadcrumbs {
    margin-bottom: 38px;
  }

  .guide-page-header {
    padding-bottom: 44px;
  }

  .guide-page-header h1 {
    font-size: clamp(2.3rem, 12vw, 4.2rem);
  }

  .guide-heading-split,
  .guide-principle-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .guide-topic-card {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 16px;
    padding: 24px 20px;
  }

  .guide-card-arrow {
    display: none;
  }

  .guide-roadmap a {
    grid-template-columns: 44px minmax(0, 1fr);
    padding: 20px 16px;
  }

  .guide-roadmap a > :last-child {
    display: none;
  }

  .guide-dates,
  .guide-dates div {
    display: grid;
    gap: 2px;
  }

  .guide-article-layout {
    padding: 42px 0;
  }

  .guide-article-nav {
    grid-template-columns: 1fr;
  }

  .guide-article-nav > :last-child {
    text-align: left;
  }

  .guide-system-figure {
    margin-inline: -4px;
    padding: 16px;
  }

  .guide-checkpoint-grid,
  .guide-choice-grid {
    grid-template-columns: 1fr;
  }

  .guide-hosting-card dl > div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .guide-hosting-actions {
    display: grid;
  }

  .guide-hosting-actions a {
    justify-content: space-between;
    border-radius: var(--radius-sm);
  }
}