:root {
  --guide-border: rgba(99, 102, 241, 0.28);
  --guide-card-bg: rgba(2, 6, 23, 0.45);
}

.callout {
  margin: 1.25rem 0;
  padding: 0.95rem 1rem;
  border-radius: 16px;
  border: 1px solid var(--guide-border);
  background: rgba(99, 102, 241, 0.12);
  color: rgba(209, 213, 219, 0.95);
}

.callout strong {
  color: rgba(226, 232, 240, 0.96);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.guide-card {
  display: block;
  border-radius: 20px;
  padding: 1.25rem 1.25rem 1.1rem;
  border: 1px solid var(--guide-border);
  background: var(--guide-card-bg);
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.guide-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 45px rgba(99, 102, 241, 0.18);
  border-color: rgba(129, 140, 248, 0.55);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  border: 1px solid rgba(99, 102, 241, 0.35);
  background: rgba(99, 102, 241, 0.12);
  color: rgba(165, 180, 252, 0.95);
  font-size: 0.8rem;
  font-weight: 700;
}

.guide-card h2 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: rgba(248, 250, 252, 0.95);
}

.guide-card p {
  margin: 0.65rem 0 0;
  color: rgba(209, 213, 219, 0.95);
  font-size: 0.95rem;
}

.cta-row {
  margin-top: 1rem;
  color: rgba(165, 180, 252, 0.95);
  font-weight: 800;
  letter-spacing: -0.01em;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(99, 102, 241, 0.22);
}

th,
td {
  text-align: left;
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid rgba(99, 102, 241, 0.18);
}

th {
  background: rgba(2, 6, 23, 0.55);
  color: rgba(226, 232, 240, 0.96);
  font-weight: 800;
  font-size: 0.9rem;
}

td {
  color: rgba(209, 213, 219, 0.95);
  font-size: 0.95rem;
}

tr:last-child td {
  border-bottom: none;
}

.toc {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  border: 1px solid rgba(99, 102, 241, 0.22);
  background: rgba(2, 6, 23, 0.35);
}

.toc-title {
  margin: 0 0 0.5rem;
  font-weight: 900;
  color: rgba(226, 232, 240, 0.96);
}

.toc a {
  color: rgba(165, 180, 252, 0.95);
  text-decoration: none;
}

.toc a:hover {
  text-decoration: underline;
  color: rgba(248, 250, 252, 0.95);
}