:root {
  --carbon: #111318;
  --carbon-deep: #090c0f;
  --gray: #6b6f76;
  --off: #f4f5f2;
  --accent: #c7f000;
  --line-dark: rgba(244,245,242,.16);
  --line-light: rgba(17,19,24,.18);
  --pad: clamp(1.25rem, 4.3vw, 5rem);
  --ease: cubic-bezier(.2,.75,.2,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--carbon-deep); }
body { margin: 0; background: var(--carbon); color: var(--off); font-family: Inter, "Helvetica Neue", Arial, sans-serif; font-size: 1rem; line-height: 1.5; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
button, a { color: inherit; }
button { font: inherit; }
a { text-decoration: none; }
img { display: block; max-width: 100%; }
em { color: var(--accent); font-style: normal; }
::selection { color: var(--carbon); background: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

.scroll-progress { position: fixed; z-index: 120; inset: 0 0 auto; height: 3px; pointer-events: none; }
.scroll-progress span { display: block; width: 0; height: 100%; background: var(--accent); box-shadow: 0 0 1.3rem rgba(199,240,0,.6); }

.site-header { position: fixed; z-index: 90; inset: 0 0 auto; min-height: 5.25rem; padding: 0 var(--pad); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid transparent; transition: min-height .35s, background .35s, border-color .35s; }
.site-header.scrolled { min-height: 4.5rem; background: rgba(9,12,15,.88); border-color: var(--line-dark); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.brand-lockup { display: inline-flex; align-items: center; width: max-content; font-family: "Arial Black", Impact, sans-serif; font-size: 1.05rem; font-style: italic; letter-spacing: -.04em; }
.brand-lockup strong { font-weight: 950; }
.brand-lockup i { width: .6rem; height: .6rem; margin-left: .25rem; background: var(--accent); clip-path: polygon(0 0,100% 0,35% 100%); }
.desktop-nav { display: flex; gap: clamp(1.6rem, 3vw, 3.8rem); }
.desktop-nav a { position: relative; color: rgba(244,245,242,.78); font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .14em; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -.55rem; height: 2px; background: var(--accent); transition: right .3s var(--ease); }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { right: 0; }
.header-action { justify-self: end; padding: .72rem .95rem; border: 1px solid rgba(244,245,242,.35); font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; transition: color .25s, background .25s, border-color .25s; }
.header-action:hover { color: var(--carbon); background: var(--off); border-color: var(--off); }
.header-action span { margin-left: .45rem; color: var(--accent); }

.hero { min-height: 100svh; position: relative; display: grid; grid-template-columns: 1.25fr .75fr; grid-template-rows: 1fr auto; padding: 8rem var(--pad) 2.4rem; overflow: hidden; isolation: isolate; }
.hero-media { position: absolute; z-index: -4; inset: 0 0 0 36%; overflow: hidden; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; filter: contrast(1.05) saturate(.85); transform: scale(1.025); }
.hero-shade { position: absolute; z-index: -3; inset: 0; background: linear-gradient(90deg, var(--carbon-deep) 0%, rgba(9,12,15,.98) 27%, rgba(9,12,15,.68) 53%, rgba(9,12,15,.15) 100%), linear-gradient(0deg, rgba(9,12,15,.88) 0%, transparent 36%); }
.hero-grid { position: absolute; z-index: -2; inset: 0; background-image: linear-gradient(rgba(244,245,242,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(244,245,242,.045) 1px, transparent 1px); background-size: 6rem 6rem; mask-image: linear-gradient(to bottom, #000, transparent 92%); }
.hero::after { content: ""; position: absolute; z-index: -1; width: 18rem; height: 40rem; top: 18%; left: 48%; background: var(--accent); opacity: .08; filter: blur(6rem); transform: rotate(18deg); }
.hero-copy { align-self: center; max-width: 62rem; }
.eyebrow, .section-index { margin: 0 0 clamp(1.7rem, 3vw, 3.5rem); font: 700 .75rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow { display: flex; gap: 1.25rem; color: rgba(244,245,242,.74); }
.eyebrow b { color: var(--accent); }
.hero-wordmark { display: flex; align-items: center; width: max-content; margin-bottom: clamp(1.3rem, 2vw, 2rem); font-family: "Arial Black", Impact, sans-serif; font-size: clamp(2rem, 4vw, 4.75rem); font-weight: 950; font-style: italic; line-height: 1; letter-spacing: -.055em; }
.hero-wordmark i { width: clamp(.8rem, 1.5vw, 1.5rem); height: clamp(.8rem, 1.5vw, 1.5rem); margin-left: .4rem; background: var(--accent); clip-path: polygon(0 0,100% 0,35% 100%); }
.hero h1 { margin: 0; font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif; font-size: clamp(4rem, 8.6vw, 10rem); font-weight: 900; line-height: .79; letter-spacing: -.07em; text-transform: uppercase; }
.hero h1 em { text-shadow: 0 0 3.5rem rgba(199,240,0,.16); }
.hero-detail { display: flex; align-items: center; justify-content: space-between; gap: 2rem; max-width: 40rem; margin-top: clamp(2.5rem, 6vh, 5rem); padding-top: 1.15rem; border-top: 1px solid rgba(244,245,242,.5); }
.hero-detail p { margin: 0; max-width: 27rem; color: rgba(244,245,242,.76); font-size: clamp(1rem, 1.25vw, 1.18rem); }
.hero-detail a { flex: 0 0 5.25rem; width: 5.25rem; height: 5.25rem; display: grid; place-items: center; border: 1px solid rgba(244,245,242,.6); border-radius: 50%; font-size: .64rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; transition: color .3s, background .3s, transform .3s var(--ease); }
.hero-detail a b { font-size: 1rem; line-height: .2; color: var(--accent); }
.hero-detail a:hover { color: var(--carbon); background: var(--off); transform: rotate(-7deg); }
.hero-side { align-self: start; justify-self: end; margin-top: 1rem; padding-left: 1.1rem; border-left: 1px solid rgba(244,245,242,.32); display: flex; flex-direction: column; gap: .35rem; font: 600 .68rem ui-monospace, monospace; letter-spacing: .2em; text-transform: uppercase; }
.hero-side i { width: 1.1rem; height: 2px; margin-top: .65rem; background: var(--accent); }
.hero-promise { grid-column: 2; align-self: end; justify-self: end; margin: 0; text-align: right; font-size: clamp(1rem, 1.45vw, 1.35rem); font-weight: 600; }
.hero-promise strong { color: var(--accent); }

.concept { background: var(--off); color: var(--carbon); padding: clamp(6rem, 11vw, 11rem) var(--pad); }
.concept-lead { display: grid; grid-template-columns: .55fr 1.45fr; gap: 6vw; align-items: start; padding-bottom: clamp(3.5rem, 7vw, 7rem); border-bottom: 1px solid var(--carbon); }
.concept-lead h2, .system-title h2, .engine-copy h2, .applications-head h2, .closing h2 { margin: 0; font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif; font-size: clamp(3.4rem, 7vw, 8.2rem); font-weight: 900; line-height: .87; letter-spacing: -.06em; text-transform: uppercase; }
.concept-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 4vw; width: 68%; margin: 3rem 0 5rem auto; }
.concept-copy p { margin: 0; font-size: clamp(1.1rem, 1.5vw, 1.35rem); }
.concept-copy p:last-child { color: var(--gray); }
.principles { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.principle { position: relative; min-height: 21rem; padding: 1.7rem clamp(1rem, 2vw, 2rem); border-right: 1px solid var(--line-light); overflow: hidden; transition: color .4s, background .4s var(--ease); }
.principle:first-child { border-left: 1px solid var(--line-light); }
.principle::after { content: ""; position: absolute; inset: auto 0 0; height: .35rem; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease); }
.principle:hover { color: var(--off); background: var(--carbon); }
.principle:hover::after { transform: scaleX(1); }
.principle-number { font: 700 .68rem ui-monospace, monospace; }
.principle svg { display: block; width: 3rem; height: 3rem; margin: 2.5rem 0 5.5rem auto; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.principle h3 { margin: 0 0 .55rem; font-size: .85rem; text-transform: uppercase; letter-spacing: .15em; }
.principle p { margin: 0; max-width: 14rem; color: var(--gray); font-size: .94rem; }
.principle:hover p { color: rgba(244,245,242,.65); }

.statement { overflow: hidden; padding: 1.15rem 0; color: var(--carbon); background: var(--accent); transform: rotate(-1deg) scale(1.02); position: relative; z-index: 3; }
.statement-track { display: flex; align-items: center; width: max-content; animation: marquee 26s linear infinite; }
.statement-track span { white-space: nowrap; font-family: "Arial Black", Impact, sans-serif; font-size: clamp(1.8rem, 3.3vw, 3.7rem); font-style: italic; letter-spacing: -.03em; }
.statement-track i { width: 3.8rem; height: .8rem; margin: 0 2rem; background: var(--carbon); clip-path: polygon(22% 0,100% 0,78% 100%,0 100%); }
@keyframes marquee { to { transform: translateX(-50%); } }

.visual-system { padding: clamp(7rem, 11vw, 11rem) var(--pad); display: grid; grid-template-columns: .78fr 1.35fr; gap: clamp(4rem, 8vw, 9rem); background: var(--carbon); }
.system-title { position: sticky; top: 8rem; align-self: start; }
.muted { color: rgba(244,245,242,.48); }
.system-title > p:last-child, .engine-copy > p:last-of-type, .applications-head > p { max-width: 29rem; margin: 2.4rem 0 0; color: rgba(244,245,242,.64); font-size: clamp(1rem, 1.35vw, 1.2rem); }
.system-panel { border-top: 1px solid var(--line-dark); }
.block-heading { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; border-bottom: 1px solid var(--line-dark); font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .14em; }
.block-heading small { color: rgba(244,245,242,.45); font: 600 .67rem ui-monospace, monospace; }
.swatches { display: grid; grid-template-columns: repeat(4, 1fr); min-height: 25rem; }
.swatch { border: 0; border-right: 1px solid rgba(244,245,242,.13); padding: 1rem; display: flex; flex-direction: column; justify-content: flex-end; text-align: left; cursor: pointer; transition: transform .35s var(--ease), filter .35s; }
.swatch:first-child { border-left: 1px solid rgba(244,245,242,.13); }
.swatch:hover, .swatch:focus-visible { transform: translateY(-.75rem); filter: saturate(1.1); }
.swatch span, .swatch b { font-size: .66rem; text-transform: uppercase; letter-spacing: .08em; }
.swatch b { margin-top: .35rem; font-family: ui-monospace, monospace; }
.swatch-carbon { color: var(--off); background: #111318; }
.swatch-gray { color: var(--off); background: #6b6f76; }
.swatch-white { color: var(--carbon); background: #f4f5f2; }
.swatch-accent { color: var(--carbon); background: #c7f000; }
.type-block, .icon-block { margin-top: 4.5rem; border-top: 1px solid var(--line-dark); }
.type-specimen { display: grid; grid-template-columns: .65fr 1.35fr; gap: 3rem; padding: 2.1rem 0; align-items: end; border-bottom: 1px solid var(--line-dark); }
.type-specimen small { display: block; color: rgba(244,245,242,.45); font-size: .68rem; text-transform: uppercase; letter-spacing: .14em; }
.type-specimen strong { display: block; font-size: clamp(4rem, 8vw, 8.5rem); line-height: .8; letter-spacing: -.08em; }
.type-specimen h3 { margin: 0 0 .4rem; font-size: clamp(1.5rem, 2.6vw, 2.8rem); }
.type-specimen p { margin: 0; color: rgba(244,245,242,.5); }
.type-display strong, .type-display h3 { font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif; font-weight: 900; }
.type-text strong, .type-text h3 { font-weight: 400; }
.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.icon-grid > div { min-height: 11rem; padding: 1.5rem .7rem; border-right: 1px solid var(--line-dark); display: flex; flex-direction: column; justify-content: space-between; align-items: center; }
.icon-grid > div:first-child { border-left: 1px solid var(--line-dark); }
.icon-grid svg { width: 3rem; height: 3rem; fill: none; stroke: var(--off); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; transition: stroke .25s, transform .25s; }
.icon-grid div:hover svg { stroke: var(--accent); transform: translateY(-.3rem); }
.icon-grid span { color: rgba(244,245,242,.55); font-size: .67rem; text-transform: uppercase; letter-spacing: .08em; }

.brand-engine { min-height: 100svh; padding: clamp(6rem, 10vw, 10rem) var(--pad); display: grid; grid-template-columns: 1.15fr .85fr; gap: 7vw; align-items: center; background: var(--carbon-deep); overflow: hidden; }
.engine-mark { position: relative; min-height: 38rem; display: flex; align-items: center; justify-content: center; border: 1px solid var(--line-dark); isolation: isolate; }
.engine-mark::before { content: ""; position: absolute; width: 75%; height: 75%; background: radial-gradient(circle, rgba(199,240,0,.14), transparent 67%); filter: blur(2rem); z-index: -1; }
.engine-mark span, .engine-mark strong { font-family: "Arial Black", Impact, sans-serif; font-size: clamp(13rem, 26vw, 30rem); line-height: .65; letter-spacing: -.16em; font-style: italic; }
.engine-mark span { color: transparent; -webkit-text-stroke: 1px rgba(244,245,242,.4); }
.engine-mark strong { color: var(--accent); text-shadow: 0 0 6rem rgba(199,240,0,.2); transform: translateX(-.08em); }
.engine-copy h2 { font-size: clamp(3.5rem, 6.2vw, 7rem); }
.engine-tags { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 3rem; }
.engine-tags span { border: 1px solid var(--line-dark); padding: .7rem .85rem; color: rgba(244,245,242,.65); font: 700 .67rem ui-monospace, monospace; text-transform: uppercase; letter-spacing: .12em; }

.applications { padding: clamp(7rem, 11vw, 11rem) var(--pad); color: var(--carbon); background: var(--off); }
.applications-head { display: grid; grid-template-columns: 1.35fr .65fr; gap: 6vw; align-items: end; padding-bottom: 4rem; }
.applications-head > p { color: var(--gray); }
.application-layout { display: grid; grid-template-columns: 1.35fr .65fr; gap: 1rem; }
.board-card { position: relative; min-height: 47rem; padding: 0; border: 0; background: var(--carbon); cursor: zoom-in; overflow: hidden; perspective: 1200px; }
.tilt-surface { display: block; width: 100%; height: 100%; transition: transform .25s ease-out; transform-style: preserve-3d; }
.board-card img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: filter .5s, transform .9s var(--ease); }
.board-card:hover img { transform: scale(1.018); filter: contrast(1.04); }
.board-action { position: absolute; z-index: 2; right: 1.25rem; bottom: 1.25rem; padding: .9rem 1.1rem; color: var(--carbon); background: var(--accent); font-size: .7rem; font-weight: 900; text-transform: uppercase; letter-spacing: .1em; }
.board-action b { margin-left: .7rem; }
.application-notes { display: grid; grid-template-rows: repeat(3, 1fr); gap: 1rem; }
.note-card { min-height: 15rem; padding: clamp(1.4rem, 2.4vw, 2.4rem); color: var(--off); background: var(--carbon); display: flex; flex-direction: column; justify-content: space-between; }
.note-card > span { font: 700 .66rem ui-monospace, monospace; text-transform: uppercase; letter-spacing: .12em; }
.note-card h3 { max-width: 19rem; margin: 2rem 0 auto; font-size: clamp(1.4rem, 2vw, 2rem); line-height: 1.04; }
.note-card p { max-width: 19rem; margin: 1.4rem 0 0; color: rgba(244,245,242,.52); font-size: .92rem; }
.note-accent { color: var(--carbon); background: var(--accent); }
.note-accent p { color: rgba(17,19,24,.64); }

.closing { position: relative; padding: clamp(8rem, 13vw, 13rem) var(--pad) clamp(4rem, 7vw, 7rem); background: var(--carbon-deep); overflow: hidden; isolation: isolate; }
.closing::after { content: "MOTORIX"; position: absolute; z-index: -2; right: -3vw; top: 10%; color: transparent; -webkit-text-stroke: 1px rgba(244,245,242,.055); font-family: "Arial Black", Impact, sans-serif; font-size: clamp(8rem, 22vw, 27rem); font-style: italic; letter-spacing: -.08em; white-space: nowrap; }
.closing-glow { position: absolute; z-index: -1; width: 28rem; height: 28rem; right: 8%; top: 20%; background: var(--accent); opacity: .08; filter: blur(7rem); }
.closing h2 { max-width: 90rem; font-size: clamp(4rem, 9vw, 10.5rem); }
.closing-bottom { margin-top: clamp(5rem, 10vw, 9rem); padding-top: 1.4rem; border-top: 1px solid var(--line-dark); display: flex; align-items: end; justify-content: space-between; gap: 2rem; }
.closing-bottom p { margin: 0; color: rgba(244,245,242,.55); font: 600 .74rem ui-monospace, monospace; letter-spacing: .16em; text-transform: uppercase; }
.primary-button { border: 0; padding: 1.15rem 1.35rem; color: var(--carbon); background: var(--accent); cursor: pointer; font-size: .72rem; font-weight: 900; text-transform: uppercase; letter-spacing: .11em; transition: transform .3s var(--ease), box-shadow .3s; }
.primary-button:hover { transform: translateY(-.25rem); box-shadow: 0 1rem 3rem rgba(199,240,0,.16); }
.primary-button span { margin-left: 1rem; }

footer { padding: 2rem var(--pad); display: grid; grid-template-columns: 1fr auto 1fr; gap: 2rem; align-items: center; color: var(--off); background: var(--carbon-deep); border-top: 1px solid var(--line-dark); }
footer p { margin: 0; color: rgba(244,245,242,.48); font-size: .74rem; }
footer .mono { justify-self: end; font-family: ui-monospace, monospace; }

.board-dialog { width: min(95vw, 78rem); height: 92vh; padding: 0; border: 1px solid rgba(244,245,242,.15); background: var(--carbon-deep); overflow: hidden; box-shadow: 0 2rem 9rem rgba(0,0,0,.65); }
.board-dialog::backdrop { background: rgba(0,0,0,.86); backdrop-filter: blur(8px); }
.dialog-close { position: absolute; z-index: 3; top: 1rem; right: 1rem; padding: .75rem 1rem; border: 1px solid rgba(244,245,242,.25); color: var(--off); background: rgba(9,12,15,.9); cursor: pointer; font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.dialog-close span { margin-left: .5rem; color: var(--accent); font-size: 1rem; }
.dialog-scroll { height: 100%; overflow: auto; overscroll-behavior: contain; }
.dialog-scroll img { width: 100%; height: auto; }
.toast { position: fixed; z-index: 130; left: 50%; bottom: 2rem; padding: .85rem 1.1rem; color: var(--off); background: var(--carbon-deep); border-left: .35rem solid var(--accent); opacity: 0; pointer-events: none; transform: translate(-50%, 1rem); transition: opacity .25s, transform .25s var(--ease); font: 700 .7rem ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.reveal { opacity: 0; transform: translateY(2rem); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.principles .reveal:nth-child(2), .application-notes .reveal:nth-child(2) { transition-delay: .08s; }
.principles .reveal:nth-child(3), .application-notes .reveal:nth-child(3) { transition-delay: .16s; }
.principles .reveal:nth-child(4) { transition-delay: .24s; }

@media (max-width: 1020px) {
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav { display: none; }
  .hero { grid-template-columns: 1fr .55fr; }
  .hero-media { left: 29%; opacity: .72; }
  .concept-lead { grid-template-columns: .45fr 1.55fr; }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .visual-system { grid-template-columns: 1fr; }
  .system-title { position: static; }
  .brand-engine { grid-template-columns: 1fr; }
  .engine-mark { min-height: 30rem; }
  .application-layout { grid-template-columns: 1fr; }
  .application-notes { grid-template-columns: repeat(3, 1fr); grid-template-rows: none; }
}

@media (max-width: 700px) {
  .site-header { min-height: 4.5rem; }
  .header-action { padding: .65rem .7rem; font-size: .63rem; }
  .header-action span { display: none; }
  .hero { min-height: 100svh; grid-template-columns: 1fr; padding-top: 7rem; }
  .hero-media { left: 0; opacity: .43; }
  .hero-shade { background: linear-gradient(90deg, rgba(9,12,15,.96), rgba(9,12,15,.38)), linear-gradient(0deg, rgba(9,12,15,.92), transparent 45%); }
  .hero h1 { font-size: clamp(4rem, 18vw, 7rem); }
  .hero-detail { align-items: center; }
  .hero-detail a { width: 4.35rem; height: 4.35rem; flex-basis: 4.35rem; }
  .hero-side { display: none; }
  .hero-promise { grid-column: 1; justify-self: start; text-align: left; }
  .concept-lead { grid-template-columns: 1fr; }
  .concept-lead h2, .system-title h2, .engine-copy h2, .applications-head h2 { font-size: clamp(3.3rem, 14vw, 5.8rem); }
  .concept-copy { width: 100%; grid-template-columns: 1fr; margin-top: 2.5rem; }
  .principles { grid-template-columns: 1fr; }
  .principle { min-height: 16rem; border-left: 1px solid var(--line-light); }
  .principle svg { margin-bottom: 3rem; }
  .swatches { grid-template-columns: repeat(2, 1fr); min-height: 31rem; }
  .type-specimen { grid-template-columns: 1fr; }
  .icon-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-engine { min-height: auto; }
  .engine-mark { min-height: 22rem; }
  .engine-mark span, .engine-mark strong { font-size: clamp(10rem, 45vw, 16rem); }
  .applications-head { grid-template-columns: 1fr; gap: 1rem; }
  .board-card { min-height: 30rem; }
  .application-notes { grid-template-columns: 1fr; }
  .closing h2 { font-size: clamp(3.8rem, 16vw, 7rem); }
  .closing-bottom { flex-direction: column; align-items: start; }
  footer { grid-template-columns: 1fr; }
  footer .mono { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}