:root {
  --white: #FFFFFF;
  --ink: #0A0A0A;
  --red: #DA0E15;
  --green: #00903E;
  --green-ink: #007A35;
  --line: #E6E6E6;
  --muted: #555555;
  --ink-muted: #CCCCCC;
  --field-border: #8A8A8A;
  --error-bg: #FDECEC;
  --paper: #F7F7F7;
  --font-display: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif;
  --font-body: 'Titillium Web', Helvetica, Arial, sans-serif;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
  --header-h: 68px;
}

@font-face { font-family: 'Barlow Condensed'; font-style: italic; font-weight: 600; font-display: swap; src: url('/assets/fonts/barlow-condensed-latin-600-italic.woff2') format('woff2'); }
@font-face { font-family: 'Barlow Condensed'; font-style: italic; font-weight: 800; font-display: swap; src: url('/assets/fonts/barlow-condensed-latin-800-italic.woff2') format('woff2'); }
@font-face { font-family: 'Titillium Web'; font-style: normal; font-weight: 400; font-display: swap; src: url('/assets/fonts/titillium-web-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Titillium Web'; font-style: normal; font-weight: 600; font-display: swap; src: url('/assets/fonts/titillium-web-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Titillium Web'; font-style: normal; font-weight: 700; font-display: swap; src: url('/assets/fonts/titillium-web-latin-700-normal.woff2') format('woff2'); }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-tap-highlight-color: transparent; }
body { margin: 0; background: var(--white); color: var(--ink); font: 400 17px/1.6 var(--font-body); -webkit-font-smoothing: antialiased; }
img, svg, picture { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-color: var(--green); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--red); outline-offset: 3px; }
h1, h2, h3 { margin: 0; line-height: 1.05; }
p { margin: 0 0 1em; }
.h-display { font-family: var(--font-display); font-style: italic; font-weight: 800; text-transform: uppercase; letter-spacing: 0.005em; }
.h1 { font-size: clamp(40px, 7vw, 76px); line-height: 0.95; }
.h2 { font-size: clamp(30px, 4.5vw, 48px); line-height: 1; margin-bottom: 0.5em; }
.h3 { font-size: 20px; font-family: var(--font-body); font-weight: 700; }
.accent { color: var(--red); }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--ink); max-width: 60ch; }
.muted { color: var(--muted); }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--white); padding: 12px 16px; z-index: 100; }
.skip-link:focus { left: 16px; top: 16px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(56px, 8vw, 104px) 0; }
.section--line { border-top: 1px solid var(--line); }
.section--paper { background: var(--paper); }

.site-header { position: sticky; top: 0; z-index: 50; background: var(--white); border-bottom: 1px solid var(--line); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.site-logo img { height: 28px; width: auto; }
.nav { display: flex; gap: 28px; }
.nav a { font-weight: 600; font-size: 15px; text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a[aria-current="page"] { border-bottom-color: var(--red); }
.menu-toggle { display: none; background: none; border: 0; padding: 10px; margin-right: -10px; cursor: pointer; }
.menu-toggle__bar { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; }

@media (hover: hover) and (pointer: fine) {
  .nav a:hover { border-bottom-color: var(--ink); }
}

@media (max-width: 999px) {
  .site-logo img { height: 22px; }
  .menu-toggle { display: block; }
  .nav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--white); border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 20px; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity 150ms var(--ease-out), transform 150ms var(--ease-out), visibility 0s linear 150ms; }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; transition: opacity 240ms var(--ease-out), transform 240ms var(--ease-out), visibility 0s; }
  .nav a { font-size: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav a[aria-current="page"] { color: var(--red); border-bottom-color: var(--line); }
}

.site-footer { border-top: 1px solid var(--line); padding: 56px 0 32px; font-size: 15px; }
.site-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.site-footer__logo { height: 24px; width: auto; margin-bottom: 16px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { text-decoration: none; }
.site-footer__legal { margin-top: 40px; color: var(--muted); font-size: 13px; }
@media (max-width: 767px) { .site-footer__grid { grid-template-columns: 1fr; } }

.wa-float { display: none; }
@media (max-width: 899px) {
  .wa-float { display: flex; position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); z-index: 60; width: 56px; height: 56px; border-radius: 50%; background: var(--green); color: var(--white); align-items: center; justify-content: center; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18); transition: transform 160ms var(--ease-out); }
  .wa-float:active { transform: scale(0.97); }
  .wa-float svg { width: 28px; height: 28px; }
}

.eyebrow { font-family: var(--font-display); font-style: italic; font-weight: 600; font-size: 15px; letter-spacing: 0.14em; text-transform: uppercase; margin: 0 0 14px; }

.btn { display: inline-flex; align-items: center; gap: 8px; font: 700 14px/1 var(--font-body); letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none; padding: 16px 24px; border: 0; cursor: pointer; transition: transform 160ms var(--ease-out), background-color 160ms ease, color 160ms ease; -webkit-tap-highlight-color: transparent; }
.btn--primary { background: var(--ink); color: var(--white); transform: skewX(-12deg); }
.btn--primary > span { display: inline-block; transform: skewX(12deg); }
.btn--primary:active { transform: skewX(-12deg) scale(0.97); }
.btn--outline { color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }
.btn--outline:active { transform: scale(0.97); }
.btn--link { color: var(--green-ink); padding-left: 0; padding-right: 0; }
.btn--link:active { transform: scale(0.97); }
.btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
@media (hover: hover) and (pointer: fine) {
  .btn--primary:hover { background: var(--red); }
  .btn--outline:hover { background: var(--ink); color: var(--white); }
  .btn--link:hover { color: var(--ink); }
}

.points { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 32px; }
.point__num { display: block; font-family: var(--font-display); font-style: italic; font-weight: 800; font-size: 30px; line-height: 1; color: var(--red); margin-bottom: 10px; }
.point h3 { font-size: 20px; margin-bottom: 8px; }
.point p { color: var(--muted); margin: 0; }

.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero__inner { position: relative; z-index: 1; padding-top: clamp(56px, 9vw, 112px); padding-bottom: clamp(48px, 7vw, 88px); }
.hero__content { max-width: min(680px, 58%); }
.hero__bars { position: absolute; top: 0; bottom: 0; right: 0; width: clamp(180px, 26vw, 360px); pointer-events: none; }
.hero__bar { position: absolute; top: 0; bottom: 0; width: 38%; transform: skewX(-24deg); transform-origin: bottom left; }
.hero__bar--red { background: var(--red); right: 52%; }
.hero__bar--green { background: var(--green); right: 0; }
.hero .lead { margin-top: 20px; }
.hero .btn-row { margin-top: 32px; }
.hero--compact .hero__inner { padding-top: clamp(48px, 7vw, 80px); padding-bottom: clamp(40px, 5vw, 64px); }
.hero--compact .hero__bars { width: clamp(120px, 16vw, 220px); }
@media (max-width: 899px) {
  .hero__content { max-width: none; }
  .hero__bars, .hero--compact .hero__bars { bottom: auto; height: 96px; width: 112px; }
  .hero__inner, .hero--compact .hero__inner { padding-top: 128px; }
}

.cta-band { background: var(--ink); color: var(--white); }
.cta-band .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; padding-top: 48px; padding-bottom: 48px; }
.cta-band .h2 { margin: 0; }
.cta-band p { margin: 8px 0 0; color: var(--ink-muted); }
.cta-band .btn--primary { background: var(--red); }
@media (hover: hover) and (pointer: fine) { .cta-band .btn--primary:hover { background: var(--white); color: var(--ink); } }

.kartshop-cta { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.kartshop-cta__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 32px; padding-top: 48px; padding-bottom: 48px; }
.kartshop-cta__logo { display: block; width: min(420px, 100%); transition: transform 160ms var(--ease-out); }
.kartshop-cta__logo img { width: 100%; height: auto; }
.kartshop-cta__logo:active { transform: scale(0.97); }
@media (hover: hover) and (pointer: fine) { .kartshop-cta__logo:hover { opacity: 0.9; } }

.brand-strip { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.brand-strip li + li { border-left: 1px solid var(--line); }
.brand-strip a { display: flex; align-items: center; justify-content: center; height: 96px; padding: 18px; text-decoration: none; }
.brand-strip__logo { max-height: 44px; width: auto; filter: grayscale(1); opacity: 0.85; transition: filter 200ms ease, opacity 200ms ease; }
.brand-strip__name { font-family: var(--font-display); font-style: italic; font-weight: 800; font-size: 24px; text-transform: uppercase; }
@media (hover: hover) and (pointer: fine) { .brand-strip a:hover .brand-strip__logo { filter: none; opacity: 1; } }
@media (max-width: 767px) {
  .brand-strip { grid-template-columns: repeat(3, 1fr); }
  .brand-strip li:nth-child(3n + 1) { border-left: 0; }
  .brand-strip li:nth-child(n + 4) { border-top: 1px solid var(--line); }
  .brand-strip a { height: 76px; }
}

.form { max-width: 860px; }
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 24px; margin-bottom: 24px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--wide { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: 15px; }
.field input, .field select, .field textarea { font: 400 16px/1.4 var(--font-body); color: var(--ink); background: var(--white); border: 1px solid var(--field-border); border-radius: 0; padding: 12px 14px; min-height: 48px; width: 100%; }
.field textarea { resize: vertical; }
.field input:user-invalid, .field select:user-invalid, .field textarea:user-invalid { border-color: var(--red); }
.form__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__error { border-left: 4px solid var(--red); background: var(--error-bg); padding: 12px 16px; margin-bottom: 24px; }
.cf-turnstile { margin-bottom: 24px; min-height: 65px; }
@media (max-width: 767px) { .form__grid { grid-template-columns: 1fr; } }

.brakes-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.steps { list-style: none; margin: 0 0 48px; padding: 0; display: grid; gap: 24px; }
.steps h3 { font-size: 20px; margin-bottom: 4px; }
.steps p { margin: 0; color: var(--muted); }
.cert--large { position: sticky; top: calc(var(--header-h) + 24px); }
@media (max-width: 899px) { .brakes-intro { grid-template-columns: 1fr; } .cert--large { position: static; } }
.brakes-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 40px); }
@media (max-width: 899px) { .brakes-gallery { grid-template-columns: 1fr; } }

.photo { margin: 0; }
.photo img { width: 100%; height: auto; display: block; }
.photo figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; }
.photo--wide img { aspect-ratio: 16 / 9; object-fit: cover; }
.gallery { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.gallery a { display: block; }
.gallery img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; display: block; transition: opacity 200ms var(--ease-out); }
@media (hover: hover) and (pointer: fine) { .gallery a:hover img { opacity: 0.9; } }

.hero--home .h1 { max-width: 12ch; }
.feature-brakes__grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.feature-brakes__media { display: grid; gap: 24px; justify-items: end; }
.cert { margin: 0; }
.cert a { display: block; border: 1px solid var(--line); background: var(--white); transition: transform 200ms var(--ease-out); }
.cert figcaption { margin-top: 12px; font-size: 14px; color: var(--muted); }
.cert--thumb { max-width: 420px; justify-self: end; }
@media (hover: hover) and (pointer: fine) { .cert a:hover { transform: translateY(-3px); } }
.philosophy { text-align: left; }
.philosophy__grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.philosophy__quote { font-size: clamp(48px, 9vw, 112px); line-height: 0.9; margin: 0 0 16px; }
.audiences__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.audience { border: 1px solid var(--line); padding: clamp(24px, 4vw, 40px); }
.audience p { color: var(--muted); max-width: 44ch; margin-bottom: 24px; }
.kartshop-band .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.kartshop-band .lead { margin: 0; }
@media (max-width: 899px) {
  .feature-brakes__grid, .audiences__grid, .philosophy__grid { grid-template-columns: 1fr; }
  .cert--thumb { justify-self: start; }
  .feature-brakes__media { justify-items: start; }
}

.brand-status { display: inline-block; font-family: var(--font-display); font-style: italic; font-weight: 800; text-transform: uppercase; font-size: 18px; letter-spacing: 0.04em; padding: 8px 14px; border-left: 4px solid var(--red); background: var(--paper); margin-bottom: 40px; }
.tag-list { list-style: none; margin: 0 0 40px; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.tag-list li { border: 1px solid var(--line); padding: 8px 14px; font-weight: 600; }
.tag-list li:has(a) { border: none; padding: 0; }
.tag-list a { display: inline-block; border: 1px solid var(--line); padding: 8px 14px; font-weight: 600; color: inherit; text-decoration: none; }
.tag-list a:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
@media (hover: hover) and (pointer: fine) {
  .tag-list a:hover { text-decoration: underline; }
}
.breadcrumb { font-size: 14px; color: var(--muted); padding: 16px 0 0; }
.breadcrumb a { color: inherit; text-decoration: none; }
@media (hover: hover) and (pointer: fine) {
  .breadcrumb a:hover { text-decoration: underline; }
}
.table-scroll { overflow-x: auto; margin: 0 0 24px; }
.kit-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.kit-table th, .kit-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.kit-table thead th { font-weight: 700; }
.kit-table code { white-space: nowrap; }
@media (max-width: 599px) {
  .kit-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .kit-table tr { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .kit-table td { display: grid; grid-template-columns: 7.5em 1fr; gap: 8px; padding: 2px 0; border-bottom: 0; }
  .kit-table td::before { content: attr(data-label); font-weight: 700; }
}
.list-plain { margin: 0 0 40px; padding-left: 20px; }
.list-plain li { margin-bottom: 8px; }
.swatches { list-style: none; margin: 0 0 40px; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px 16px; }
.swatch img { width: 100%; height: auto; aspect-ratio: 4 / 1; object-fit: cover; border: 1px solid var(--line); }
.swatch__name { display: block; font-size: 14px; font-weight: 600; margin-top: 6px; }
.faq { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq summary { font-weight: 700; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; float: right; }
.faq[open] summary::after { content: '\2013'; }
.faq p { margin: 8px 0 0; color: var(--muted); }
.aim-grid { list-style: none; margin: 0 0 40px; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 24px; }
.aim-cat { border: 1px solid var(--line); padding: 16px; }
.aim-cat picture, .aim-cat img { aspect-ratio: 4 / 3; object-fit: contain; width: 100%; background: var(--white); margin-bottom: 12px; }
.aim-cat h3 { font-size: 18px; margin-bottom: 6px; }
.aim-cat p { font-size: 14px; color: var(--muted); margin: 0; }
.engine-grid { list-style: none; margin: 0 0 40px; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 20px; }
.engine-card a { display: block; border: 1px solid var(--line); padding: 16px; text-decoration: none; color: inherit; transition: border-color 200ms ease; }
.engine-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; }
.engine-card__name { display: block; font-weight: 700; margin-top: 8px; }
.engine-card__cta { display: block; font-size: 14px; color: var(--green-ink); }
@media (hover: hover) and (pointer: fine) {
  .engine-card a:hover { border-color: var(--ink); }
}
.brand-group + .brand-group { margin-top: 64px; }
.brand-cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.brand-card a { display: flex; flex-direction: column; gap: 8px; border: 1px solid var(--line); padding: 24px; text-decoration: none; height: 100%; transition: border-color 200ms ease; }
.brand-card__logo { height: 64px; display: flex; align-items: center; }
.brand-card__logo img { max-height: 56px; width: auto; }
.brand-card__name { font-weight: 700; font-size: 20px; }
.brand-card__status { font-size: 14px; color: var(--muted); }
@media (hover: hover) and (pointer: fine) { .brand-card a:hover { border-color: var(--ink); } }
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.about-grid p { max-width: 62ch; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 24px; }
.contact-list li { display: flex; flex-direction: column; gap: 4px; }
.contact-list__label { font-family: var(--font-display); font-style: italic; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; font-size: 14px; color: var(--muted); }
.contact-list a { font-weight: 700; font-size: 18px; }
.contact-list + .photo { margin-top: 32px; max-width: 360px; }
@media (max-width: 899px) { .about-grid, .contact-grid { grid-template-columns: 1fr; } }
.hel-banner { margin: 0 auto 40px; }
.hel-banner img { width: 100%; height: auto; border-radius: 0; }
.model-list { list-style: none; margin: 0 0 40px; padding: 0; }
.model-list li { border-bottom: 1px solid var(--line); padding: 12px 0; }

.js [data-reveal] { opacity: 0; transform: translateY(8px); transition: opacity 300ms var(--ease-out), transform 300ms var(--ease-out); transition-delay: var(--reveal-delay, 0ms); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

.hero__bar { animation: bar-in 500ms var(--ease-out) both; }
.hero__bar--green { animation-delay: 60ms; }
@keyframes bar-in { from { opacity: 0; transform: skewX(-24deg) translateX(48px); } }

.lightbox { border: 0; padding: 0; max-width: min(1100px, 94vw); background: transparent; }
.lightbox::backdrop { background: rgba(10, 10, 10, 0.8); }
.lightbox img { width: 100%; height: auto; max-height: 88vh; object-fit: contain; background: var(--white); }
.lightbox[open] { animation: lightbox-in 200ms var(--ease-out); }
@keyframes lightbox-in { from { opacity: 0; transform: scale(0.96); } }
.lightbox__close { position: absolute; top: 8px; right: 8px; width: 44px; height: 44px; border: 0; background: var(--ink); color: var(--white); font-size: 28px; line-height: 1; cursor: pointer; }

@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { transform: none; transition: opacity 200ms ease; }
  .hero__bar, .lightbox[open] { animation: none; }
  .btn, .cert a, .wa-float, .brand-strip__logo, .brand-card a, .kartshop-cta__logo, .engine-card a { transition: none; }
  .btn:active, .btn--primary:active { transform: skewX(-12deg); }
  .btn--outline:active, .btn--link:active { transform: none; }
  .nav, .nav.is-open { transition: opacity 150ms ease, visibility 0s; transform: none; }
  .cert a:hover { transform: none; }
  .wa-float:active { transform: none; }
}