.sdlc-content {
  --sdlc-accent: #4568f9;
  --sdlc-border: #e7e7ee;
  --sdlc-muted: #61616f;
  color: #20202a;
  font-size: 18px;
  line-height: 1.7;
  margin-inline: auto;
  max-width: 920px;
}

.sdlc-content__header {
  margin-block-end: 3rem;
}

.sdlc-content__header h1 {
  font-size: clamp(2.25rem, 5vw, 4rem);
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin-block: 0 1rem;
}

.sdlc-content__updated {
  color: var(--sdlc-muted);
  font-size: 0.9rem;
}

.sdlc-content__intro {
  font-size: 1.08em;
  margin-block-end: 4rem;
}

.sdlc-section {
  scroll-margin-top: 2rem;
}

.sdlc-section + .sdlc-section {
  margin-block-start: 4rem;
}

.sdlc-section > h2 {
  font-size: clamp(1.65rem, 3vw, 2.4rem);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-block-end: 1.5rem;
}

.sdlc-marker {
  color: var(--sdlc-accent);
}

.sdlc-accordion {
  border-block-start: 1px solid var(--sdlc-border);
  margin-block-start: 1.75rem;
}

.sdlc-item {
  border-block-end: 1px solid var(--sdlc-border);
  scroll-margin-top: 2rem;
}

.sdlc-item summary {
  align-items: flex-start;
  cursor: pointer;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  list-style: none;
  padding-block: 1.4rem;
}

.sdlc-item summary::-webkit-details-marker {
  display: none;
}

.sdlc-item summary::after {
  color: var(--sdlc-accent);
  content: "+";
  flex: 0 0 auto;
  font-size: 1.65rem;
  line-height: 1;
  margin-block-start: 0.15rem;
}

.sdlc-item[open] summary::after {
  content: "−";
}

.sdlc-item h3 {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.35;
  margin: 0;
}

.sdlc-item__answer {
  padding: 0 3.25rem 1.75rem 0;
}

.sdlc-item__answer > :first-child,
.sdlc-section > :first-child {
  margin-block-start: 0;
}

.sdlc-content a {
  color: var(--sdlc-accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.14em;
}

.sdlc-content--empty {
  border: 1px dashed var(--sdlc-border);
  color: var(--sdlc-muted);
  padding: 1rem;
}

@media (max-width: 640px) {
  .sdlc-content {
    font-size: 16px;
  }

  .sdlc-item__answer {
    padding-inline-end: 0;
  }
}