.faq-hero { padding-block: clamp(28px, 3vw, 40px) clamp(24px, 3vw, 36px); }
.faq-hero h1 { font-family: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif; font-size: clamp(2.7rem, 4vw, 4rem); line-height: 1; letter-spacing: -.025em; text-wrap: balance; }
.faq-hero .product-breadcrumbs { margin-bottom: 18px; }
.faq-layout { display: grid; grid-template-columns: minmax(180px, 220px) minmax(0, 1fr); gap: clamp(44px, 6vw, 88px); align-items: start; padding-block: clamp(32px, 4vw, 48px) clamp(70px, 8vw, 110px); border-top: 1px solid var(--line); }
.faq-toc, .faq-content { min-width: 0; }
.faq-toc { position: sticky; top: 110px; }
.faq-toc .eyebrow { margin-bottom: 18px; }
.faq-toc nav { display: grid; gap: 0; border-left: 1px solid #3a4a48; }
.faq-toc nav a { display: flex; align-items: center; min-height: 44px; margin-left: -1px; padding: 9px 0 9px 16px; border-left: 2px solid transparent; color: #b5c2c1; font-size: .95rem; }
.faq-toc nav a:hover, .faq-toc nav a:focus-visible { border-left-color: var(--mint); color: var(--text); }
.faq-toc-note { max-width: 25ch; margin-top: 35px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.faq-toc-note a, .faq-answer a { color: var(--mint); text-decoration: underline; text-underline-offset: .2em; }
.faq-group, #can-wiring { scroll-margin-top: 110px; }
.faq-group + .faq-group { margin-top: clamp(62px, 6vw, 88px); }
.faq-group-header { margin-bottom: 22px; }
.faq-group-header h2 { font-family: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif; font-size: clamp(2.5rem, 3.5vw, 3.5rem); line-height: 1; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item[open] > summary { background: #10191a; box-shadow: inset 2px 0 0 var(--mint); }
.faq-item summary { display: grid; grid-template-columns: 32px minmax(0, 1fr) 30px; align-items: center; gap: 16px; padding: 18px; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: rgba(112, 233, 193, .045); }
.faq-item[open] > summary:hover { background: #152322; }
.faq-item summary:focus-visible { outline-offset: -3px; }
.faq-item summary:hover .faq-question { color: var(--mint); }
.faq-number { color: #a6b5b3; font-family: Consolas, 'Courier New', monospace; font-size: .75rem; }
.faq-item[open] .faq-number { color: var(--mint); }
.faq-question { font-size: clamp(1.12rem, 1.4vw, 1.35rem); font-weight: 600; line-height: 1.3; }
.faq-toggle { position: relative; width: 30px; height: 30px; border: 1px solid #5b706c; color: var(--mint); }
.faq-toggle::before, .faq-toggle::after { position: absolute; top: 13px; left: 7px; width: 14px; height: 2px; background: currentColor; content: ''; }
.faq-toggle::after { transform: rotate(90deg); }
.faq-item[open] .faq-toggle::after { transform: none; }
.faq-answer { max-width: 78ch; padding: 18px 52px 30px 66px; color: #c1cecc; overflow-wrap: anywhere; }
.faq-item#what-is-race15 .faq-answer > p:first-child { color: #eef5f3; font-size: 1.06rem; }
.faq-answer p + p, .faq-answer ul + p, .faq-answer p + ul { margin-top: 15px; }
.faq-answer strong { color: var(--text); font-weight: 600; }
.faq-answer ul { padding-left: 1.2rem; line-height: 1.65; }
.faq-answer li + li { margin-top: 5px; }
.faq-answer li::marker { color: var(--mint); }
.faq-table-wrap { overflow-x: auto; margin: 18px 0; }
.faq-table { width: 100%; border-collapse: collapse; text-align: left; font-size: .95rem; }
.faq-table th, .faq-table td { padding: 12px 15px 12px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.faq-table th { color: var(--text); font-weight: 600; }
.faq-end { margin-bottom: clamp(65px, 8vw, 105px); }
@media (max-width: 800px) {
  .faq-layout { grid-template-columns: minmax(0, 1fr); gap: 34px; }
  .faq-toc { position: static; }
  .faq-toc nav { display: flex; flex-wrap: wrap; gap: 0 22px; border-left: 0; }
  .faq-toc nav a { margin-left: 0; padding: 8px 0; border-left: 0; border-bottom: 2px solid transparent; }
  .faq-toc-note { max-width: none; margin-top: 18px; padding-top: 16px; }
}
@media (max-width: 480px) {
  .faq-hero { padding-block: 24px 28px; }
  .faq-hero .product-breadcrumbs { margin-bottom: 16px; }
  .faq-hero h1 { font-size: clamp(2.6rem, 10vw, 3.2rem); }
  .faq-layout { gap: 24px; }
  .faq-toc nav { gap: 0 16px; }
  .faq-toc nav a { min-height: 44px; font-size: .88rem; }
  .faq-toc-note { display: none; }
  .faq-group, #can-wiring { scroll-margin-top: 88px; }
  .faq-item summary { grid-template-columns: 25px minmax(0, 1fr) 30px; gap: 11px; padding: 16px 12px; }
  .faq-answer { padding: 16px 14px 24px 48px; }
  .faq-table { min-width: 480px; }
}