.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding-top: 22px;
  color: var(--muted);
  font-size: .78rem;
}

.breadcrumbs a:hover { color: var(--accent); }

.guide-hero {
  padding: 46px 0 26px;
}

.guide-hero h1 {
  max-width: 920px;
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -2px;
}

.guide-hero p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.68;
}

.guide-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
  color: var(--muted);
  font-size: .78rem;
}

.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(250px, .5fr);
  gap: 24px;
  align-items: start;
  padding: 18px 0 54px;
}

.guide-article,
.guide-sidebar,
.guides-card,
.glossary-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(18,28,46,.8);
  box-shadow: var(--shadow);
}

.guide-article {
  padding: 28px;
}

.guide-article h2 {
  margin: 34px 0 10px;
  font-size: 1.5rem;
  letter-spacing: -.4px;
}

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

.guide-article h3 {
  margin: 24px 0 8px;
  font-size: 1.08rem;
}

.guide-article p,
.guide-article li {
  color: var(--muted);
  line-height: 1.78;
}

.guide-article strong { color: var(--text); }

.formula {
  margin: 18px 0;
  padding: 17px 18px;
  border: 1px solid rgba(84,214,140,.3);
  border-radius: 13px;
  background: rgba(84,214,140,.07);
  font-weight: 850;
  color: var(--text);
  overflow-x: auto;
}

.guide-example {
  margin: 18px 0;
  padding: 18px;
  border-radius: 14px;
  border: 1px solid rgba(248,193,92,.28);
  background: rgba(248,193,92,.07);
}

.guide-example h3 { margin-top: 0; }

.guide-cta {
  margin: 24px 0;
  padding: 20px;
  border-radius: 15px;
  border: 1px solid rgba(84,214,140,.3);
  background: rgba(84,214,140,.07);
}

.guide-cta h3 { margin-top: 0; }

.guide-sidebar {
  padding: 20px;
  position: sticky;
  top: 92px;
}

.guide-sidebar h2 {
  margin-top: 0;
  font-size: 1.05rem;
}

.guide-sidebar nav,
.guide-links {
  display: grid;
  gap: 8px;
}

.guide-sidebar a,
.guide-links a {
  padding: 10px 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: .82rem;
  font-weight: 750;
}

.guide-sidebar a:hover,
.guide-links a:hover {
  color: var(--accent);
  border-color: rgba(84,214,140,.42);
}

.faq-block {
  margin-top: 30px;
  border-top: 1px solid var(--border);
}

.faq-block .faq-item {
  padding: 18px 0;
}

.guides-hero {
  padding: 66px 0 38px;
  text-align: center;
}

.guides-hero h1 {
  margin: 0 auto 14px;
  max-width: 820px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  letter-spacing: -2px;
}

.guides-hero p {
  max-width: 720px;
  margin: 0 auto;
  color: var(--muted);
  line-height: 1.65;
}

.guides-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 18px 0 54px;
}

.guides-card {
  padding: 22px;
  transition: transform .18s ease, border-color .18s ease;
}

.guides-card:hover {
  transform: translateY(-3px);
  border-color: rgba(84,214,140,.45);
}

.guides-card h2 {
  margin: 0 0 9px;
  font-size: 1.14rem;
}

.guides-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.55;
  font-size: .88rem;
}

.glossary-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 30px;
}

.glossary-index a {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--muted);
  font-weight: 800;
}

.glossary-index a:hover {
  color: var(--accent);
  border-color: rgba(84,214,140,.4);
}

.glossary-list {
  display: grid;
  gap: 12px;
}

.glossary-card {
  padding: 18px;
}

.glossary-card h2 {
  margin: 0 0 8px;
  font-size: 1.06rem;
}

.glossary-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

@media (max-width: 880px) {
  .guide-layout { grid-template-columns: 1fr; }
  .guide-sidebar { position: static; }
}

@media (max-width: 680px) {
  .guides-grid { grid-template-columns: 1fr; }
  .guide-article { padding: 20px; }
  .guide-hero h1, .guides-hero h1 { letter-spacing: -1.2px; }
}