/* =========================================================================
   APEX PERFORMANCE — styles.css
   Cinematic dark tuning-house demo. Mobile-first.
   Token architecture: primitive -> semantic -> component.
   ========================================================================= */

/* ---------- PRIMITIVE TOKENS ---------- */
:root {
  --ink-950:#060607;  --ink-900:#0a0a0b;  --ink-850:#0d0d10;
  --ink-800:#141417;  --ink-750:#191920;  --carbon-700:#202027;
  --carbon-600:#2a2a31; --carbon-500:#3a3a42; --steel-400:#5e5e68;
  --steel-300:#8b8b95; --fog-300:#a9a9b3; --fog-200:#cfcfd6;
  --fog-100:#ebebef;  --white:#f7f7f9;

  --amber-300:#ff8a4d; --amber-400:#ff7a3d; --amber-500:#ff5e1a;
  --amber-600:#e84e10; --amber-700:#c23f0a;

  /* ---------- SEMANTIC TOKENS ---------- */
  --bg:var(--ink-900);
  --bg-2:var(--ink-850);
  --surface:var(--ink-800);
  --surface-2:var(--carbon-700);
  --text:var(--fog-100);
  --text-dim:var(--fog-300);
  --text-mute:var(--steel-300);
  --accent:var(--amber-500);
  --accent-2:var(--amber-400);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.17);
  --glow:rgba(255,94,26,.55);

  /* ---------- TYPE ---------- */
  --font-display:'Archivo Expanded','Archivo',system-ui,sans-serif;
  --font-body:'Archivo',system-ui,-apple-system,sans-serif;
  --font-mark:'Syncopate','Archivo Expanded',sans-serif;
  --font-mono:'Space Mono',ui-monospace,monospace;

  /* ---------- MOTION ---------- */
  --ease-out:cubic-bezier(0.23,1,0.32,1);
  --ease-in-out:cubic-bezier(0.77,0,0.175,1);
  --ease-drawer:cubic-bezier(0.32,0.72,0,1);

  /* ---------- COMPONENT ---------- */
  --nav-h:74px;
  --pad-x:clamp(20px,5vw,72px);
  --maxw:1320px;
  --radius:14px;
  --z-menu:90; --z-nav:95; --z-tach:100; --z-cursor:120; --z-intro:130;
}

/* ---------- RESET ---------- */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; color-scheme:dark; }
section[id], [id] { scroll-margin-top:calc(var(--nav-h) + 12px); }
@media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }

body {
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.is-locked { overflow:hidden; }

img,svg,model-viewer { display:block; max-width:100%; }
a { color:inherit; text-decoration:none; }
button { font:inherit; color:inherit; background:none; border:none; cursor:pointer; }
a, button { touch-action:manipulation; -webkit-tap-highlight-color:transparent; }
h1, h2, h3 { text-wrap:balance; }

::selection { background:var(--accent); color:var(--ink-950); }

:focus-visible { outline:2px solid var(--accent); outline-offset:3px; border-radius:3px; }

.skip-link {
  position:fixed; top:-60px; left:16px; z-index:200;
  background:var(--accent); color:var(--ink-950); font-weight:700;
  padding:10px 16px; border-radius:8px; transition:top .2s var(--ease-out);
}
.skip-link:focus { top:16px; }

/* ---------- SHARED TYPE ELEMENTS ---------- */
.eyebrow {
  font-family:var(--font-mark);
  font-size:clamp(10px,1.1vw,12px);
  letter-spacing:.34em; text-transform:uppercase;
  color:var(--text-mute); font-weight:700;
}
.eyebrow::before {
  content:""; display:inline-block; width:26px; height:1px;
  background:var(--accent); vertical-align:middle; margin-right:14px;
  transform:translateY(-3px);
}
.section-title {
  font-family:var(--font-display);
  font-weight:800; line-height:.98; letter-spacing:-.01em;
  font-size:clamp(2.4rem,6.5vw,5.2rem);
  text-transform:uppercase;
}
em { font-style:normal; color:var(--accent); }

/* =========================================================================
   TACH — scroll progress bar
   ========================================================================= */
.tach {
  position:fixed; top:0; left:0; right:0; height:3px;
  background:rgba(255,255,255,.06); z-index:var(--z-tach);
}
.tach__fill {
  display:block; height:100%; width:100%;
  transform:scaleX(0); transform-origin:0 50%;
  background:linear-gradient(90deg,var(--steel-300),var(--fog-100));
  transition:background .35s ease;
}
.tach.is-redline .tach__fill {
  background:linear-gradient(90deg,var(--amber-500),#ff2d2d);
  box-shadow:0 0 14px var(--glow);
}

/* =========================================================================
   INTRO
   ========================================================================= */
.intro {
  position:fixed; inset:0; z-index:var(--z-intro);
  background:radial-gradient(120% 100% at 50% 50%,#101015 0%,var(--ink-950) 70%);
  display:grid; place-items:center; overflow:hidden;
}
.intro.is-done { pointer-events:none; }
.intro__stage { position:relative; width:min(92vw,640px); height:240px; display:grid; place-items:center; }

.intro__bar {
  position:absolute; top:50%; height:2px; width:42%;
  background:linear-gradient(90deg,transparent,var(--accent),var(--white));
  box-shadow:0 0 22px 2px var(--glow);
  opacity:0;
}
.intro__bar--l { left:0;  transform:translate(-60%,-50%) scaleX(.2); }
.intro__bar--r { right:0; transform:translate(60%,-50%) scaleX(.2);
  background:linear-gradient(270deg,transparent,var(--accent),var(--white)); }

.intro__flash {
  position:absolute; inset:-40%;
  background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.95),rgba(255,138,77,.35) 22%,transparent 48%);
  opacity:0; mix-blend-mode:screen; pointer-events:none;
}
.intro__word {
  font-family:var(--font-mark); font-weight:700;
  font-size:clamp(3.2rem,13vw,8rem); letter-spacing:.22em;
  color:var(--white); opacity:0; filter:blur(14px);
  text-shadow:0 0 40px var(--glow);
}
.intro__tag {
  position:absolute; bottom:34px;
  font-family:var(--font-mono); font-size:clamp(11px,1.4vw,14px);
  letter-spacing:.18em; color:var(--text-dim); text-transform:uppercase; opacity:0;
}
.intro__skip {
  position:absolute; bottom:26px; right:26px;
  font-family:var(--font-mono); font-size:11px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--text-mute);
  padding:10px 14px; border:1px solid var(--line); border-radius:30px;
  transition:color .2s var(--ease-out),border-color .2s var(--ease-out);
}
.intro__skip:hover { color:var(--text); border-color:var(--line-strong); }

/* =========================================================================
   NAV
   ========================================================================= */
.nav {
  position:fixed; top:0; left:0; right:0; z-index:var(--z-nav);
  height:var(--nav-h);
  transition:background .4s var(--ease-out),backdrop-filter .4s var(--ease-out),border-color .4s var(--ease-out);
  border-bottom:1px solid transparent;
}
.nav.is-scrolled {
  background:rgba(10,10,11,.72);
  backdrop-filter:blur(14px) saturate(1.2);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  border-bottom-color:var(--line);
}
.nav__inner {
  height:100%; max-width:var(--maxw); margin:0 auto;
  padding:0 var(--pad-x);
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.nav__brand {
  font-family:var(--font-mark); font-weight:700;
  font-size:18px; letter-spacing:.22em; color:var(--white);
  display:inline-flex; align-items:center; gap:11px;
}
.nav__mark {
  width:13px; height:15px; display:inline-block;
  background:var(--accent);
  clip-path:polygon(50% 0,100% 100%,66% 100%,50% 52%,34% 100%,0 100%);
}
.nav__links { display:none; }
.nav__links a {
  font-family:var(--font-mono); font-size:13px; letter-spacing:.06em;
  color:var(--text-dim); position:relative; padding:6px 2px;
  transition:color .25s var(--ease-out);
}
.nav__links a::after {
  content:""; position:absolute; left:0; bottom:-2px; height:1px; width:100%;
  background:var(--accent); transform:scaleX(0); transform-origin:0 50%;
  transition:transform .3s var(--ease-out);
}
.nav__links a:hover { color:var(--text); }
.nav__links a:hover::after { transform:scaleX(1); }
.nav__inner .nav__cta { display:none; }

/* burger */
.nav__burger {
  width:46px; height:46px; display:inline-flex; flex-direction:column;
  align-items:center; justify-content:center; gap:6px; border-radius:10px;
  border:1px solid var(--line); margin-right:-6px;
}
.nav__burger span {
  width:20px; height:2px; background:var(--text); border-radius:2px;
  transition:transform .35s var(--ease-out),opacity .25s var(--ease-out);
}
.nav__burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(4px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2){ transform:translateY(-4px) rotate(-45deg); }

/* mobile menu — OPAQUE per Summit rule */
.navmenu {
  position:fixed; inset:0; z-index:var(--z-menu);
  background:var(--ink-950);
  display:flex; flex-direction:column; justify-content:center;
  padding:var(--pad-x);
  opacity:0; visibility:hidden; transform:translateY(-8px);
  transition:opacity .4s var(--ease-out),transform .4s var(--ease-out),visibility .4s;
  overscroll-behavior:contain;
}
.navmenu[hidden]{ display:flex; } /* keep transitionable; JS toggles .is-open */
.navmenu.is-open { opacity:1; visibility:visible; transform:none; }
.navmenu__links { display:flex; flex-direction:column; gap:6px; }
.navmenu__links a {
  font-family:var(--font-display); font-weight:800; text-transform:uppercase;
  font-size:clamp(2rem,11vw,3.4rem); line-height:1.05; color:var(--text);
  padding:10px 0; border-bottom:1px solid var(--line);
  display:flex; align-items:center; gap:14px;
  transition:color .25s var(--ease-out),padding-left .3s var(--ease-out);
}
.navmenu__links a:hover { color:var(--accent); padding-left:10px; }
.navmenu__foot {
  margin-top:40px; font-family:var(--font-mono); font-size:12px;
  letter-spacing:.16em; text-transform:uppercase; color:var(--text-mute);
}

/* =========================================================================
   BUTTONS
   ========================================================================= */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-family:var(--font-mono); font-size:13px; font-weight:700;
  letter-spacing:.1em; text-transform:uppercase;
  padding:15px 26px; border-radius:40px; min-height:48px;
  transition:transform .18s var(--ease-out),background .25s var(--ease-out),
             color .25s var(--ease-out),border-color .25s var(--ease-out),box-shadow .25s var(--ease-out);
}
.btn:active { transform:scale(.97); }
.btn--solid { background:var(--accent); color:var(--ink-950); }
.btn--ghost { border:1px solid var(--line-strong); color:var(--text); }
@media (hover:hover){
  .btn--solid:hover { background:var(--amber-400); box-shadow:0 8px 30px -8px var(--glow); }
  .btn--ghost:hover { border-color:var(--accent); color:var(--accent); }
}

/* =========================================================================
   HERO
   ========================================================================= */
.hero {
  position:relative; min-height:100svh;
  display:flex; flex-direction:column; justify-content:flex-end;
  padding:calc(var(--nav-h) + 18px) var(--pad-x) clamp(28px,6vh,64px);
  overflow:hidden;
  background:
    radial-gradient(120% 80% at 50% 30%,#16161c 0%,var(--ink-900) 55%,var(--ink-950) 100%);
}
.hero__stage { position:absolute; inset:0; z-index:0; will-change:transform; }
.hero__video {
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; object-position:50% 56%;
  opacity:0; transition:opacity 1s var(--ease-out);
}
.hero__video.is-playing { opacity:1; }
.hero__static {
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; object-position:50% 56%;
  display:none;
}
.hero__floor {
  position:absolute; left:0; right:0; bottom:0; height:42%;
  background:linear-gradient(to top,var(--ink-950) 4%,rgba(10,10,11,.4) 50%,transparent);
  pointer-events:none;
}
.hero__grain { position:absolute; inset:0; z-index:1; pointer-events:none; opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.045'/%3E%3C/svg%3E");
}
.hero__copy { position:relative; z-index:2; max-width:760px; }
.eyebrow--hero { color:var(--text-dim); }
.hero__title {
  font-family:var(--font-display); font-weight:900; text-transform:uppercase;
  font-size:clamp(3.2rem,12vw,9rem); line-height:.86; letter-spacing:-.015em;
  margin:18px 0 22px;
}
.hero__title .line { display:block; overflow:hidden; }
.hero__title .line > span { display:block; }
.hero__sub {
  max-width:46ch; color:var(--text-dim);
  font-size:clamp(1rem,1.5vw,1.18rem); line-height:1.55;
}
.hero__actions { display:flex; align-items:center; gap:16px; flex-wrap:wrap; margin-top:30px; }

/* ---- HERO: phone polish (legibility + typography) ---- */
@media (max-width:680px){
  .hero { padding-bottom:clamp(40px,8vh,64px); }
  /* frame the full side profile: enough zoom to trim the studio ceiling, not so much the car crops to a slice */
  .hero__video, .hero__static { object-position:50% 50%; transform:scale(1.14); transform-origin:50% 62%; }
  /* strong bottom scrim so copy is crisp over the video */
  .hero__floor { height:70%;
    background:linear-gradient(to top,var(--ink-950) 6%,rgba(10,10,11,.86) 32%,rgba(10,10,11,.42) 60%,transparent 100%); }
  /* one-line eyebrow, brighter, sits on the scrim */
  .eyebrow--hero { font-size:9.5px; letter-spacing:.13em; color:var(--fog-200); }
  .eyebrow--hero::before { width:18px; margin-right:9px; }
  .eb-tail { display:none; }
  /* kill the negative tracking that crams BUILT PAST; give words air */
  .hero__title { font-size:clamp(2.75rem,12.2vw,4rem); letter-spacing:0; word-spacing:.06em; line-height:.9; margin:14px 0 18px; }
  .hero__sub { font-size:1.02rem; max-width:34ch; line-height:1.5; }
  /* panel titles: a touch more air between words */
  .panel__title { letter-spacing:0; word-spacing:.03em; }
}

.scrollcue {
  position:absolute; right:var(--pad-x); bottom:clamp(28px,6vh,64px); z-index:2;
  display:none; flex-direction:column; align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:10px; letter-spacing:.22em;
  text-transform:uppercase; color:var(--text-mute);
}
.scrollcue__line { width:1px; height:54px; background:linear-gradient(var(--accent),transparent); position:relative; overflow:hidden; }
.scrollcue__line::after { content:""; position:absolute; top:-50%; left:0; width:100%; height:50%;
  background:var(--white); animation:cue 1.8s var(--ease-in-out) infinite; }
@keyframes cue { 0%{transform:translateY(-100%)} 60%,100%{transform:translateY(300%)} }
@media (min-width:760px){ .scrollcue{ display:flex; } }

/* =========================================================================
   MANIFESTO
   ========================================================================= */
.manifesto { position:relative; padding:clamp(80px,12vh,150px) 0 clamp(60px,9vh,120px); border-top:1px solid var(--line); }
.marquee { overflow:hidden; border-block:1px solid var(--line); padding:14px 0; margin-bottom:clamp(50px,8vh,100px); -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent); }
.marquee__row { display:inline-flex; gap:34px; align-items:center; white-space:nowrap; will-change:transform; }
.marquee__row span {
  font-family:var(--font-display); font-weight:800; text-transform:uppercase;
  font-size:clamp(1.6rem,4vw,3rem); letter-spacing:.02em; color:var(--carbon-500);
}
.marquee__row .dot { color:var(--accent); font-family:var(--font-body); }
.manifesto__inner { max-width:var(--maxw); margin:0 auto; padding:0 var(--pad-x); }
.manifesto__head {
  font-family:var(--font-display); font-weight:800; text-transform:uppercase;
  font-size:clamp(2rem,5.5vw,4.4rem); line-height:1.0; letter-spacing:-.01em;
  margin:22px 0; max-width:18ch;
}
.manifesto__body { max-width:54ch; color:var(--text-dim); font-size:clamp(1.05rem,1.6vw,1.32rem); line-height:1.6; }

/* =========================================================================
   BUILD SEQUENCE
   ========================================================================= */
.build { position:relative; background:var(--ink-950); padding-top:clamp(60px,9vh,110px); }
.build__intro { max-width:var(--maxw); margin:0 auto; padding:0 var(--pad-x) clamp(40px,6vh,70px); }
.build__intro .section-title { margin:18px 0 16px; }
.build__lead { max-width:42ch; color:var(--text-dim); font-size:1.06rem; }

/* MOBILE-FIRST: vertical stack of full-bleed panels (no pin) */
.build__track { display:flex; flex-direction:column; gap:14px; padding:0 var(--pad-x) clamp(50px,8vh,90px); }
.panel {
  position:relative; min-height:74svh; border-radius:var(--radius); overflow:hidden;
  display:flex; align-items:flex-end; isolation:isolate;
  border:1px solid var(--line);
}
.panel__media {
  position:absolute; inset:0; z-index:-2;
  background-image:var(--img); background-size:cover; background-position:center;
  transform:scale(1.06); transition:transform 1.2s var(--ease-out);
}
.panel::after {
  content:""; position:absolute; inset:0; z-index:-1;
  background:linear-gradient(to top,rgba(6,6,7,.94) 0%,rgba(6,6,7,.55) 38%,rgba(6,6,7,.1) 70%,transparent 100%);
}
@media (hover:hover){ .panel:hover .panel__media { transform:scale(1.12); } }
.panel__body { padding:clamp(22px,4vw,42px); max-width:560px; }
.panel__index {
  font-family:var(--font-mono); font-size:13px; letter-spacing:.2em; color:var(--accent);
}
.panel__kicker {
  font-family:var(--font-mark); font-weight:700; font-size:11px; letter-spacing:.32em;
  text-transform:uppercase; color:var(--text-mute); margin:10px 0 14px;
}
.panel__title {
  font-family:var(--font-display); font-weight:800; text-transform:uppercase;
  font-size:clamp(1.5rem,3.4vw,2.5rem); line-height:1.02; letter-spacing:-.01em;
}
.panel__copy { color:var(--fog-200); margin:14px 0 18px; max-width:42ch; font-size:1rem; }
.panel__spec {
  display:inline-block; font-family:var(--font-mono); font-size:12px; letter-spacing:.08em;
  color:var(--text); padding:9px 15px; border:1px solid var(--line-strong); border-radius:30px;
  background:rgba(255,255,255,.03);
}
.panel--final .panel__spec { border-color:var(--accent); color:var(--accent); box-shadow:0 0 24px -6px var(--glow); }

/* =========================================================================
   DYNO
   ========================================================================= */
.dyno { max-width:var(--maxw); margin:0 auto; padding:clamp(80px,12vh,150px) var(--pad-x); }
.dyno__head { text-align:center; margin-bottom:clamp(46px,7vh,80px); }
.dyno__head .eyebrow { display:inline-block; }
.dyno__head .eyebrow::before{ display:none; }
.dyno__head .section-title { margin:16px 0 12px; }
.dyno__lead { color:var(--text-mute); font-family:var(--font-mono); font-size:13px; letter-spacing:.06em; }
.dyno__grid { display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
.gauge {
  position:relative; background:linear-gradient(180deg,var(--surface),var(--bg-2));
  border:1px solid var(--line); border-radius:var(--radius);
  padding:clamp(20px,3vw,34px); text-align:center; overflow:hidden;
}
.gauge::before { content:""; position:absolute; inset:0;
  background:radial-gradient(80% 60% at 50% 0%,rgba(255,94,26,.08),transparent 70%); }
.gauge__svg { width:100%; max-width:188px; margin:0 auto 6px; display:block; }
.gauge__track { fill:none; stroke:var(--carbon-600); stroke-width:9; stroke-linecap:round; }
.gauge__arc { fill:none; stroke:url(#apexGrad); stroke-width:9; stroke-linecap:round;
  filter:drop-shadow(0 0 6px var(--glow)); }
.gauge__num {
  font-family:var(--font-mono); font-weight:700; color:var(--white);
  font-size:clamp(1.9rem,5vw,2.9rem); line-height:1; letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.gauge__unit { font-family:var(--font-mono); font-size:12px; color:var(--accent); letter-spacing:.08em; }
.gauge__label {
  margin-top:12px; font-family:var(--font-mark); font-weight:700; font-size:10px;
  letter-spacing:.26em; text-transform:uppercase; color:var(--text-mute);
}

/* =========================================================================
   GARAGE / CARBON PARALLAX
   ========================================================================= */
.garage { position:relative; overflow:hidden; padding:clamp(90px,14vh,170px) 0; border-top:1px solid var(--line); }
.garage__layer { position:absolute; inset:-12% 0; z-index:0; will-change:transform; pointer-events:none; }
.garage__layer--carbon {
  background-image:
    repeating-linear-gradient(45deg,rgba(255,255,255,.020) 0 6px,transparent 6px 12px),
    repeating-linear-gradient(-45deg,rgba(255,255,255,.020) 0 6px,transparent 6px 12px),
    repeating-linear-gradient(45deg,rgba(0,0,0,.4) 0 12px,rgba(20,20,23,.4) 12px 24px);
  opacity:.5;
}
.garage__layer--carbon2 {
  background-image:
    repeating-linear-gradient(-45deg,rgba(255,94,26,.05) 0 14px,transparent 14px 60px);
  opacity:.6;
}
.garage__inner {
  position:relative; z-index:2; max-width:var(--maxw); margin:0 auto; padding:0 var(--pad-x);
  display:grid; gap:clamp(34px,5vw,64px); align-items:center;
}
.garage__head {
  font-family:var(--font-display); font-weight:800; text-transform:uppercase;
  font-size:clamp(2.4rem,6.5vw,5rem); line-height:.96; letter-spacing:-.01em; margin-bottom:22px;
}
.garage__body { max-width:46ch; color:var(--text-dim); font-size:1.08rem; margin-bottom:28px; }
.garage__plate { position:relative; border-radius:var(--radius); overflow:hidden; border:1px solid var(--line-strong); will-change:transform; }
.garage__plate::after { content:""; position:absolute; inset:0; box-shadow:inset 0 0 80px rgba(0,0,0,.6); }
.garage__plate img { width:100%; height:100%; object-fit:cover; aspect-ratio:16/10; }

/* =========================================================================
   CTA — EXHAUST FLAME
   ========================================================================= */
.cta { position:relative; text-align:center; padding:clamp(100px,16vh,200px) var(--pad-x); overflow:hidden; }
.cta::before { content:""; position:absolute; inset:0;
  background:radial-gradient(60% 70% at 50% 120%,rgba(255,94,26,.16),transparent 70%); }
.cta__inner { position:relative; max-width:760px; margin:0 auto; }
.cta__inner .eyebrow { display:inline-block; }
.cta__inner .eyebrow::before { display:none; }
.cta__head {
  font-family:var(--font-display); font-weight:900; text-transform:uppercase;
  font-size:clamp(2.6rem,8vw,6rem); line-height:.94; letter-spacing:-.015em; margin:18px 0 20px;
}
.cta__body { max-width:48ch; margin:0 auto 40px; color:var(--text-dim); font-size:clamp(1.05rem,1.6vw,1.25rem); }
.cta__fine { margin-top:26px; font-family:var(--font-mono); font-size:12px; letter-spacing:.06em; color:var(--text-mute); }

.flamebtn {
  position:relative; display:inline-flex; align-items:center; justify-content:center;
  padding:20px 46px; min-height:60px; border-radius:50px;
  background:var(--accent); color:var(--ink-950);
  font-family:var(--font-mono); font-weight:700; font-size:15px;
  letter-spacing:.08em; text-transform:uppercase; isolation:isolate;
  transition:transform .18s var(--ease-out),box-shadow .3s var(--ease-out);
  box-shadow:0 10px 40px -12px var(--glow);
}
.flamebtn:active { transform:scale(.97); }
.flamebtn__label { position:relative; z-index:2; }
.flamebtn__flames {
  position:absolute; left:0; right:0; bottom:100%; height:60px; z-index:1;
  display:flex; justify-content:center; gap:10px; align-items:flex-end;
  opacity:0; transition:opacity .25s var(--ease-out);
}
.flamebtn__flames span {
  width:16px; height:30px; border-radius:50% 50% 46% 46%;
  background:linear-gradient(to top,#ffd24d,var(--amber-500) 55%,#ff2d2d);
  filter:blur(2px); transform-origin:50% 100%; transform:scaleY(.3);
}
@media (hover:hover){
  .flamebtn:hover { box-shadow:0 14px 50px -10px var(--glow),0 0 0 1px rgba(255,138,77,.5); }
  .flamebtn:hover .flamebtn__flames { opacity:1; }
  .flamebtn:hover .flamebtn__flames span { animation:flame .5s var(--ease-in-out) infinite alternate; }
  .flamebtn__flames span:nth-child(1){ animation-delay:0s; height:24px; }
  .flamebtn__flames span:nth-child(2){ animation-delay:.08s; height:36px; }
  .flamebtn__flames span:nth-child(3){ animation-delay:.02s; height:44px; }
  .flamebtn__flames span:nth-child(4){ animation-delay:.12s; height:34px; }
  .flamebtn__flames span:nth-child(5){ animation-delay:.06s; height:26px; }
}
@keyframes flame {
  0% { transform:scaleY(.5) translateY(2px); opacity:.7; }
  100%{ transform:scaleY(1.05) translateY(-4px); opacity:1; }
}

/* =========================================================================
   FOOTER
   ========================================================================= */
.footer { border-top:1px solid var(--line); padding:clamp(50px,8vh,90px) var(--pad-x) 50px; }
.footer__inner { max-width:var(--maxw); margin:0 auto; display:grid; gap:30px; }
.footer__brand { font-family:var(--font-mark); font-weight:700; font-size:20px; letter-spacing:.22em; color:var(--white); display:inline-flex; align-items:center; gap:11px; }
.footer__nav { display:flex; flex-wrap:wrap; gap:22px; }
.footer__nav a { font-family:var(--font-mono); font-size:13px; color:var(--text-dim); transition:color .2s var(--ease-out); }
.footer__nav a:hover { color:var(--accent); }
.footer__fine { display:grid; gap:4px; font-size:13px; color:var(--text-mute); line-height:1.6; }
.footer__fine a { color:var(--text-dim); border-bottom:1px solid var(--line); }
.footer__fine a:hover { color:var(--accent); }

/* =========================================================================
   CURSOR (magnetic ring)
   ========================================================================= */
.cursor {
  position:fixed; top:0; left:0; width:34px; height:34px; border-radius:50%;
  border:1px solid var(--line-strong); z-index:var(--z-cursor); pointer-events:none;
  transition:width .25s var(--ease-out),height .25s var(--ease-out),
    border-color .25s var(--ease-out),background .25s var(--ease-out),opacity .3s var(--ease-out); display:none;
  opacity:0; mix-blend-mode:difference;
}
.cursor.is-ready { opacity:1; }
.cursor.is-active { width:64px; height:64px; border-color:var(--accent); background:rgba(255,94,26,.12); }
@media (hover:hover) and (pointer:fine){ .cursor{ display:block; } }

/* =========================================================================
   REVEAL (scroll-in)
   ========================================================================= */
.reveal { opacity:0; transform:translateY(26px); transition:opacity .8s var(--ease-out),transform .8s var(--ease-out); }
.reveal.is-in { opacity:1; transform:none; }

/* =========================================================================
   RESPONSIVE — TABLET + DESKTOP
   ========================================================================= */
@media (min-width:760px){
  .dyno__grid { grid-template-columns:repeat(4,1fr); gap:18px; }
  .garage__inner { grid-template-columns:1fr 1fr; }
}

@media (min-width:1000px){
  .nav__links { display:flex; gap:34px; }
  .nav__inner .nav__cta { display:inline-flex; }
  .nav__burger { display:none; }

  /* HORIZONTAL PINNED BUILD TRACK */
  .build__viewport { height:100vh; display:flex; align-items:center; overflow:hidden; }
  .build__track {
    flex-direction:row; flex-wrap:nowrap; gap:30px;
    padding:0 0 0 var(--pad-x); width:max-content; will-change:transform;
  }
  .panel {
    flex:0 0 auto; width:min(70vw,860px); min-height:78vh; border-radius:18px;
  }
  .panel__body { max-width:520px; }
  /* spacer so the last panel can fully arrive */
  .build__track::after { content:""; flex:0 0 var(--pad-x); }
}

@media (min-width:1280px){
  .panel { width:760px; }
}

/* =========================================================================
   REDUCED MOTION
   ========================================================================= */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after { animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.12s !important; }
  .reveal { opacity:1 !important; transform:none !important; }
  .panel__media { transform:none !important; }
  .scrollcue__line::after { animation:none !important; }
  .intro { display:none !important; }
  /* swap the orbit video for a still */
  .hero__video { display:none !important; }
  .hero__static { display:block !important; }
}