.faq-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--line-hairline) solid var(--color-border);
}

.faq-hero::before {
  position: absolute;
  top: 34px;
  right: max(var(--gutter), calc((100vw - var(--page-width)) / 2));
  width: clamp(120px, 20vw, 280px);
  height: clamp(120px, 20vw, 280px);
  border: var(--line-hairline) solid var(--color-accent-soft);
  content: "";
  background:
    linear-gradient(90deg, var(--color-transparent) 49%, var(--color-accent-faint) 50%, var(--color-transparent) 51%),
    linear-gradient(0deg, var(--color-transparent) 49%, var(--color-accent-faint) 50%, var(--color-transparent) 51%);
  transform: rotate(45deg);
  pointer-events: none;
}

.faq-hero .content-wrap {
  position: relative;
  z-index: 1;
}

.faq-hero h1 {
  max-width: 980px;
  margin-top: 22px;
  font-size: clamp(52px, 7vw, 96px);
}

.faq-hero .lead {
  max-width: 850px;
}

.faq-diagnostic {
  display: grid;
  margin-top: 48px;
  grid-template-columns: minmax(220px, 0.65fr) minmax(0, 1.35fr);
  gap: 40px;
  align-items: start;
}

.faq-diagnostic h2 {
  margin-top: 12px;
  margin-bottom: 0;
  font-size: clamp(29px, 3.2vw, 42px);
}

.diagnostic-steps {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  counter-reset: diagnostic-step;
}

.diagnostic-steps li {
  position: relative;
  min-width: 0;
  min-height: 126px;
  padding: 22px 20px 20px 58px;
  border-top: var(--line-hairline) solid var(--color-border);
  border-left: var(--line-hairline) solid var(--color-border);
  counter-increment: diagnostic-step;
}

.diagnostic-steps li::before {
  position: absolute;
  top: 20px;
  left: 18px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 13px;
  content: "0" counter(diagnostic-step);
  letter-spacing: var(--tracking-mono);
}

.diagnostic-steps strong,
.diagnostic-steps span {
  display: block;
}

.diagnostic-steps strong {
  margin-bottom: 6px;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 19px;
}

.diagnostic-steps span {
  color: var(--color-text-muted);
  font-size: 13px;
  line-height: 1.7;
}

.faq-category {
  scroll-margin-top: calc(var(--header-height) + 18px);
}

.faq-category + .faq-category {
  border-top: var(--line-hairline) solid var(--color-accent-soft);
}

.faq-category-head {
  display: grid;
  margin-bottom: 32px;
  grid-template-columns: minmax(230px, 0.65fr) minmax(0, 1.35fr);
  gap: 44px;
  align-items: end;
}

.faq-category-head h2 {
  margin-top: 10px;
  margin-bottom: 0;
}

.faq-category-head > p {
  max-width: 720px;
  margin-bottom: 7px;
  color: var(--color-text-muted);
}

.faq-category .faq-list {
  position: relative;
  padding-left: 28px;
}

.faq-category .faq-list::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 3px;
  width: var(--line-hairline);
  content: "";
  background: var(--color-border);
}

.faq-category .faq-item::before {
  position: absolute;
  top: 27px;
  left: -29px;
  width: 9px;
  height: 9px;
  border: var(--line-hairline) solid var(--color-accent);
  content: "";
  background: var(--color-bg);
  transform: rotate(45deg);
}

.faq-category .faq-item {
  position: relative;
}

.faq-category .faq-item[open] {
  border-color: var(--color-accent-dark);
  box-shadow:
    10px 10px 0 var(--color-shadow-soft),
    inset 0 1px 0 var(--color-highlight);
}

.faq-category .faq-item[open]::before {
  background: var(--color-accent);
}

.faq-category .faq-answer {
  padding: 24px clamp(20px, 4vw, 34px);
  line-height: 1.9;
}

.faq-category .faq-answer p {
  max-width: 940px;
}

.faq-follow-up {
  margin-top: 38px;
  margin-bottom: 0;
}

.faq-links {
  display: grid;
  margin-top: 54px;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
}

.faq-links h2 {
  margin-top: 10px;
  font-size: clamp(30px, 3.8vw, 46px);
}

.faq-links p {
  max-width: 700px;
  margin-bottom: 0;
}

@media (max-width: 760px) {
  .faq-diagnostic,
  .faq-category-head,
  .faq-links {
    grid-template-columns: minmax(0, 1fr);
  }

  .faq-diagnostic,
  .faq-category-head {
    gap: 24px;
  }

  .faq-links {
    gap: 24px;
  }

  .faq-hero::before {
    top: 54px;
    right: -56px;
  }
}

@media (max-width: 640px) {
  .faq-hero h1 {
    font-size: clamp(45px, 14vw, 64px);
  }

  .faq-diagnostic {
    margin-top: 36px;
  }

  .diagnostic-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .diagnostic-steps li {
    min-height: 0;
  }

  .faq-category .faq-list {
    padding-left: 16px;
  }

  .faq-category .faq-list::before {
    left: 0;
  }

  .faq-category .faq-item::before {
    left: -20px;
  }

  .faq-category .faq-item summary {
    min-height: 68px;
    padding-right: 48px;
  }

  .faq-category .faq-answer {
    padding: 20px;
  }

  .faq-links .button-row,
  .faq-links .button {
    width: 100%;
  }
}