.guide-body {
  background:
    radial-gradient(circle at 12% 6%, rgba(137, 220, 235, 0.16), transparent 26rem),
    linear-gradient(180deg, #111322 0%, #10121f 34rem, #0d0f19 100%);
}

.guide-shell {
  width: min(1320px, calc(100% - 2rem));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 18rem minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(4rem, 8vw, 6rem);
  overflow: visible;
}

.guide-sidebar {
  position: sticky;
  top: 5rem;
  display: block;
  max-height: calc(100vh - 6rem);
  overflow: auto;
  padding: 1rem;
  border: 1px solid rgba(49, 50, 68, 0.92);
  border-radius: 8px;
  background: rgba(24, 24, 37, 0.88);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

.guide-sidebar h2 {
  margin: 1.1rem 0 0.45rem;
  color: var(--cyan);
  font-size: 0.78rem;
  line-height: 1.2;
  text-transform: uppercase;
}

.guide-sidebar ul {
  display: grid;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.guide-sidebar a {
  display: block;
  padding: 0.45rem 0.55rem;
  border-radius: 6px;
  color: var(--muted);
  text-decoration: none;
  line-height: 1.35;
}

.guide-sidebar a:hover,
.guide-sidebar a[aria-current="page"] {
  background: rgba(49, 50, 68, 0.72);
  color: #f7f8ff;
}

.back-link,
.guide-index-link {
  color: var(--text) !important;
  font-weight: 800;
}

.guide-article {
  min-width: 0;
  padding: clamp(1.25rem, 4vw, 3rem);
  border: 1px solid rgba(49, 50, 68, 0.92);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(30, 30, 46, 0.94), rgba(24, 24, 37, 0.94)),
    var(--panel);
  box-shadow: var(--shadow);
}

.guide-article h1 {
  max-width: 24ch;
  margin-bottom: 1.4rem;
  font-size: clamp(2.1rem, 4vw, 3.8rem);
  line-height: 1.05;
}

.guide-title-lockup {
  display: flex;
  gap: clamp(1rem, 3vw, 1.6rem);
  align-items: center;
  margin-bottom: 1.4rem;
}

.guide-title-lockup h1 {
  margin-bottom: 0;
}

.guide-title-icon {
  flex: 0 0 auto;
  width: clamp(5.25rem, 12vw, 8.5rem);
  height: clamp(5.25rem, 12vw, 8.5rem);
  object-fit: contain;
  filter: drop-shadow(0 18px 32px rgba(0, 0, 0, 0.28));
}

.guide-article h2 {
  margin-top: 2.4rem;
  font-size: clamp(1.6rem, 3vw, 2.7rem);
}

.guide-article h3 {
  margin-top: 1.8rem;
}

.guide-article p,
.guide-article li {
  max-width: 76ch;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.75;
}

.guide-article ul,
.guide-article ol {
  display: grid;
  gap: 0.35rem;
  padding-left: 1.2rem;
}

.guide-article a {
  color: var(--cyan);
}

.guide-article code {
  color: var(--green);
  font-size: 0.94em;
}

.guide-article p code,
.guide-article li code {
  padding: 0.08rem 0.28rem;
  border: 1px solid rgba(49, 50, 68, 0.92);
  border-radius: 4px;
  background: rgba(17, 17, 27, 0.74);
}

.guide-article pre {
  max-width: 76ch;
  margin: 1rem 0 1.35rem;
  padding: 1rem;
  overflow: auto;
  border: 1px solid rgba(137, 220, 235, 0.22);
  border-radius: 8px;
  background: #11111b;
}

.guide-article pre code {
  white-space: pre;
}

.article-toc {
  width: min(100%, 42rem);
  margin: 0 0 1.8rem;
  padding: 1rem;
  border: 1px solid rgba(49, 50, 68, 0.92);
  border-radius: 8px;
  background: rgba(17, 17, 27, 0.58);
}

.article-toc h2 {
  margin: 0 0 0.7rem;
  color: var(--yellow);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.article-toc ul {
  gap: 0.25rem;
  padding: 0;
  list-style: none;
}

.article-toc a {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.article-toc a:hover {
  color: var(--cyan);
}

.article-toc .level-3 {
  padding-left: 0.8rem;
}

.guide-index-hero {
  max-width: 58rem;
  margin-bottom: 2rem;
}

.guide-index-hero h1 {
  max-width: 13ch;
}

.guide-lede {
  max-width: 48rem !important;
  color: #dfe4ff !important;
  font-size: 1.18rem !important;
}

.guide-section {
  margin-top: 2.2rem;
}

.guide-section > h2 {
  margin-bottom: 0.7rem;
}

.guide-group {
  margin-top: 1.3rem;
}

.guide-group h3 {
  margin-bottom: 0.8rem;
  color: var(--yellow);
  font-size: 1rem;
  text-transform: uppercase;
}

.guide-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.guide-card {
  display: block;
  min-height: 8rem;
  padding: 1.15rem;
  border: 1px solid rgba(49, 50, 68, 0.92);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(37, 37, 53, 0.9), rgba(24, 24, 37, 0.9)),
    var(--panel);
  text-decoration: none;
}

.guide-card--with-icon {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 0.9rem;
  align-items: center;
}

.guide-card-icon {
  grid-row: span 2;
  width: 4.4rem;
  height: 4.4rem;
  object-fit: contain;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.24));
}

.guide-card:hover {
  border-color: rgba(137, 220, 235, 0.72);
}

.guide-card span {
  display: block;
  margin-bottom: 0.45rem;
  color: #f7f8ff;
  font-weight: 800;
}

.guide-card small {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

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

  .guide-sidebar {
    position: static;
    max-height: none;
  }

  .article-toc {
    width: auto;
    margin: 0 0 1.4rem;
  }
}

@media (max-width: 680px) {
  .guide-title-lockup {
    align-items: flex-start;
  }

  .guide-title-icon {
    width: 4.5rem;
    height: 4.5rem;
  }

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