/* =========================================================
   Bleed for Speed — site.css
   Two worlds: the bench (navy) where the carburetor lives,
   and the counter (satin aluminum) where the paperwork is.
   ========================================================= */

:root {
  /* palette — navy and red come from the wordmark, satin from the vapor-blast finish, brass from the jets */
  --navy-950: #061223;
  --navy-900: #071a30;
  --navy-800: #0b2a4a;
  --navy-700: #003c7d;
  --navy-600: #0f4f9a;
  --red: #f01e23;
  --red-deep: #c0121a;
  --red-soft: rgba(240, 30, 35, .16);
  --brass: #cf9f3c;
  --satin-50: #f7f8fa;
  --satin-100: #eef1f4;
  --satin-200: #dfe4e9;
  --satin-300: #c9cfd6;
  --satin-500: #8e969e;
  --ink: #0e1a2b;
  --ink-2: #3f4d5e;
  --ink-3: #6b7786;
  --paper: #ffffff;
  --paper-2: rgba(255, 255, 255, .74);
  --paper-3: rgba(255, 255, 255, .5);
  --line-dark: rgba(255, 255, 255, .14);
  --line-light: rgba(14, 26, 43, .12);

  --font-display: "Big Shoulders Display", "Arial Narrow", "Franklin Gothic Medium", Impact, sans-serif;
  --font-body: "Barlow", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --container: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --section: clamp(72px, 9vw, 136px);
  --radius: 4px;
  --radius-lg: 12px;
  --header-h: 66px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--satin-100);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.container {
  width: min(100% - 2 * var(--gutter), var(--container));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

:focus-visible { outline: 3px solid var(--red); outline-offset: 3px; }

/* ---------- type ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  line-height: .92;
  letter-spacing: .005em;
  margin: 0;
}
.display--xl { font-size: clamp(52px, 6.4vw, 96px); }
.display--lg { font-size: clamp(44px, 5.4vw, 80px); }
.display--md { font-size: clamp(32px, 3.6vw, 52px); }
.display--sm { font-size: clamp(26px, 2.6vw, 34px); }

.lede {
  font-size: clamp(18px, 1.35vw, 21px);
  line-height: 1.5;
  max-width: 52ch;
}
.on-dark { color: var(--paper); }
.on-dark .lede, .on-dark p { color: var(--paper-2); }
.on-dark strong { color: var(--paper); }
.section-head { max-width: 900px; margin-bottom: clamp(36px, 5vw, 64px); }
.section-head .lede { margin-top: 18px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 24px;
  border-radius: var(--radius);
  font-weight: 600; font-size: 16px; letter-spacing: .01em;
  text-decoration: none; cursor: pointer;
  border: 2px solid transparent;
  transition: transform .18s var(--ease), background-color .18s, border-color .18s, color .18s;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--red); color: #fff; border-color: var(--red); }
.btn--primary:hover { background: var(--red-deep); border-color: var(--red-deep); }
.btn--ghost { background: transparent; color: var(--paper); border-color: rgba(255, 255, 255, .45); }
.btn--ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .06); }
.btn--navy { background: var(--navy-700); color: #fff; border-color: var(--navy-700); }
.btn--navy:hover { background: var(--navy-800); border-color: var(--navy-800); }
.btn--outline { background: transparent; color: var(--navy-700); border-color: var(--navy-700); }
.btn--outline:hover { background: var(--navy-700); color: #fff; }
.btn--sm { min-height: 42px; padding: 0 16px; font-size: 15px; }

/* ---------- pulse divider (the EKG line from the wordmark) ---------- */
.pulse {
  height: 22px;
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='22' viewBox='0 0 220 22'><path d='M0 11H120L128 3L140 20L148 11H220' fill='none' stroke='%23f01e23' stroke-width='2'/></svg>") repeat-x left center / 220px 22px;
  opacity: .9;
}
.pulse--dark { background-color: var(--navy-900); }
.pulse--light { background-color: var(--satin-100); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--line-light);
  transition: box-shadow .25s;
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(6, 18, 35, .12); }
.site-header__row {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  min-height: var(--header-h);
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { height: 34px; width: auto; display: block; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  text-decoration: none; font-weight: 600; font-size: 15px;
  padding: 10px 12px; border-radius: var(--radius);
  color: var(--ink-2);
}
.site-nav a:hover { color: var(--ink); background: var(--satin-100); }
.site-nav a.is-cta { margin-left: 8px; }
.site-nav .btn { min-height: 42px; padding: 0 18px; font-size: 15px; color: #fff; }
.site-nav .btn:hover { color: #fff; }
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
  border-radius: var(--radius);
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px auto;
  transition: transform .2s, opacity .2s;
}

@media (max-width: 880px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 10px var(--gutter) 18px;
    background: #fff; border-bottom: 1px solid var(--line-light);
    box-shadow: 0 16px 32px rgba(6, 18, 35, .14);
  }
  .site-nav a { padding: 14px 12px; font-size: 17px; }
  .site-nav a.is-cta { margin: 8px 0 0; }
  .nav-open .site-nav { display: flex; }
  .nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  background: radial-gradient(1200px 700px at 78% 45%, #0f3a6b 0%, var(--navy-900) 55%, var(--navy-950) 100%);
  color: var(--paper);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  min-height: calc(100vh - var(--header-h));
  padding: clamp(40px, 6vw, 80px) 0 clamp(32px, 4vw, 56px);
}
.hero__title { max-width: 15ch; }
.hero .lede { margin-top: 26px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero__visual { position: relative; }
.hero__visual .carb { width: 100%; height: auto; display: block; filter: drop-shadow(0 30px 40px rgba(0, 0, 0, .45)); }
.carb3d { position: relative; width: 100%; aspect-ratio: 1400 / 1100; }
.carb3d__poster, .carb3d__canvas {
  position: absolute; inset: 0; width: 100% !important; height: 100% !important; display: block;
  transition: opacity .7s var(--ease);
}
.carb3d__poster { object-fit: contain; z-index: 2; }
.carb3d__canvas { z-index: 3; opacity: 0; cursor: grab; }
.carb3d.is-live .carb3d__poster { opacity: 0; }
.carb3d.is-live .carb3d__canvas { opacity: 1; }
.carb3d.is-dragging .carb3d__canvas { cursor: grabbing; }
.carb3d__shadow {
  position: absolute; left: 22%; right: 22%; bottom: 3%; height: 9%; z-index: 1;
  background: radial-gradient(closest-side, rgba(0, 0, 0, .55), rgba(0, 0, 0, 0)); filter: blur(4px);
}
.carb3d__hint { margin: 8px 0 0; text-align: center; font-size: 14px; color: var(--paper-3); }
.throttle {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px;
  margin: 10px auto 0; max-width: 520px;
  font-size: 14px; color: var(--paper-3);
}
.throttle__bar { position: relative; height: 4px; background: rgba(255, 255, 255, .16); border-radius: 2px; overflow: visible; }
.throttle__fill { position: absolute; inset: 0 auto 0 0; width: calc(var(--t, 0) * 100%); background: var(--red); border-radius: 2px; }
.throttle__marker {
  position: absolute; top: 50%; left: calc(var(--t, 0) * 100%);
  width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--red);
  transform: translate(-50%, -50%);
}
.throttle__value { font-variant-numeric: tabular-nums; min-width: 4ch; text-align: right; color: var(--paper-2); }

.spec-strip {
  border-top: 1px solid var(--line-dark);
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.spec-strip li {
  padding: 18px 20px 18px 0; font-size: 15px; color: var(--paper-2);
  border-left: 1px solid var(--line-dark); padding-left: 20px;
}
.spec-strip li:first-child { border-left: 0; padding-left: 0; }
.spec-strip strong { display: block; color: var(--paper); font-weight: 600; }

@media (max-height: 780px) and (min-width: 981px) {
  .hero__grid { padding-top: 28px; padding-bottom: 24px; }
  .hero .display--xl { font-size: clamp(48px, 5.6vw, 84px); }
  .hero .lede { margin-top: 18px; }
  .hero__cta { margin-top: 22px; }
}
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; min-height: 0; }
  .hero__visual { order: -1; max-width: 640px; margin: 0 auto; width: 100%; }
  .hero__title { max-width: 14ch; }
  .spec-strip { grid-template-columns: 1fr 1fr; }
  .spec-strip li:nth-child(odd) { border-left: 0; padding-left: 0; }
  .spec-strip li:nth-child(n+3) { border-top: 1px solid var(--line-dark); }
}
@media (max-width: 520px) {
  .spec-strip { grid-template-columns: 1fr; }
  .spec-strip li { border-left: 0; padding-left: 0; border-top: 1px solid var(--line-dark); }
  .spec-strip li:first-child { border-top: 0; }
}

/* ---------- carburetor drawing ---------- */
.carb { display: block; --t: 0; }
.carb__slide, .carb__needle, .carb__slide-tint {
  transform: translateY(calc(var(--t) * -70px));
  transform-box: view-box;
  will-change: transform;
}
.carb__spring {
  transform-origin: 410px 100px;
  transform: scaleY(calc(1 - var(--t) * .9));
  transform-box: view-box;
}
.carb--anatomy, .carb--before, .carb--after { --t: .5; }
.carb--anatomy .part { transition: opacity .35s var(--ease), filter .35s var(--ease); }
.carb--anatomy.has-active .part:not(.is-active) { opacity: .7; }
.carb--anatomy .part.is-active {
  opacity: 1;
  filter: drop-shadow(0 0 2px #ff5a5e) drop-shadow(0 0 9px rgba(240, 30, 35, .85));
}
.pin { cursor: pointer; outline: none; }
.pin__leader { stroke: var(--red); stroke-width: 1.5; opacity: .55; transition: opacity .2s; }
.pin__anchor { fill: var(--red); }
.pin__hit { fill: transparent; }
.pin__dot {
  fill: var(--red); stroke: #fff; stroke-width: 1.5;
  transform-box: fill-box; transform-origin: center;
  transition: transform .2s var(--ease), fill .2s, stroke .2s;
}
.pin__num { fill: #fff; font-family: var(--font-body); font-weight: 700; font-size: 15px; pointer-events: none; }
.pin:hover .pin__dot, .pin.is-active .pin__dot { transform: scale(1.18); }
.pin.is-active .pin__dot { fill: #fff; stroke: var(--red); stroke-width: 2.5; }
.pin.is-active .pin__num { fill: var(--red); }
.pin.is-active .pin__leader { opacity: 1; }
.pin:focus-visible .pin__dot { stroke: #fff; stroke-width: 4; }
@media (max-width: 600px) {
  .pin__dot { r: 19; }
  .pin__hit { r: 30; }
  .pin__num { font-size: 20px; }
}

/* ---------- anatomy ---------- */
.anatomy { background: var(--navy-800); color: var(--paper); padding: var(--section) 0; }
.symptoms { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: clamp(28px, 4vw, 44px); }
.symptoms__label { width: 100%; font-size: 15px; color: var(--paper-2); margin-bottom: 2px; }
.chip {
  border: 1px solid rgba(255, 255, 255, .28); background: rgba(255, 255, 255, .04);
  color: var(--paper); border-radius: 999px; padding: 9px 16px; font-size: 15px; cursor: pointer;
  transition: background-color .18s, border-color .18s;
}
.chip:hover { border-color: #fff; background: rgba(255, 255, 255, .1); }
.chip.is-active { background: var(--red); border-color: var(--red); }

.anatomy__stage {
  position: relative;
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .9fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
.anatomy__carb .carb { width: 100%; height: auto; }
.anatomy__hint { font-size: 14px; color: var(--paper-3); margin: 6px 0 0; text-align: center; }
.leader { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.leader path { fill: none; stroke: var(--red); stroke-width: 1.5; stroke-dasharray: 4 5; opacity: .9; }
.leader circle { fill: var(--red); }

.panel {
  position: relative;
  background: rgba(6, 18, 35, .55);
  border: 1px solid rgba(255, 255, 255, .12);
  border-left: 4px solid var(--red);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: clamp(22px, 2.6vw, 34px);
  backdrop-filter: blur(6px);
}
.panel__anchor { position: absolute; left: -4px; top: 34px; width: 4px; height: 4px; }
.panel__num {
  display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 50%;
  background: var(--red); color: #fff; font: 700 17px var(--font-body); margin-right: 12px; vertical-align: middle;
}
.panel__title { display: flex; align-items: center; gap: 4px; margin: 0; font-size: clamp(30px, 2.6vw, 40px); }
.panel__symptom {
  margin: 16px 0 0; padding: 12px 14px; border-radius: var(--radius);
  background: var(--red-soft); border: 1px solid rgba(240, 30, 35, .35); font-size: 15px; color: var(--paper);
}
.panel__symptom[hidden] { display: none; }
.panel h4 { margin: 22px 0 6px; font-size: 13px; font-weight: 700; letter-spacing: .06em; color: var(--paper-3); text-transform: uppercase; }
.panel p { margin: 0; color: var(--paper-2); }
.panel__covered {
  margin-top: 22px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
}
.panel__covered a { color: var(--paper); text-decoration: none; border-bottom: 1px solid rgba(255, 255, 255, .4); }
.panel__covered a:hover { border-color: #fff; }
.panel__price { font-family: var(--font-display); font-weight: 800; font-size: 34px; line-height: 1; color: var(--paper); }

.parts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 18px; }
.parts button {
  display: flex; align-items: center; gap: 10px; text-align: left;
  padding: 10px 12px; border-radius: var(--radius); cursor: pointer;
  background: transparent; border: 1px solid rgba(255, 255, 255, .14); color: var(--paper-2);
  transition: background-color .18s, border-color .18s, color .18s;
}
.parts button:hover { border-color: rgba(255, 255, 255, .5); color: var(--paper); }
.parts button.is-active { background: rgba(240, 30, 35, .14); border-color: var(--red); color: var(--paper); }
.parts b { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; border: 1.5px solid currentColor; font-size: 13px; flex: none; }
.parts button.is-active b { background: var(--red); border-color: var(--red); color: #fff; }

@media (max-width: 980px) {
  .anatomy__stage { grid-template-columns: 1fr; }
  .leader { display: none; }
  .panel { border-radius: var(--radius-lg); border-left-width: 4px; }
}
@media (max-width: 520px) { .parts { grid-template-columns: 1fr; } }

/* ---------- vapor blast / compare ---------- */
.vapor { background: var(--navy-900); color: var(--paper); padding: var(--section) 0; }
.vapor .lede { margin-top: 18px; }
.vapor__grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.compare {
  position: relative; --pos: 50;
  border-radius: var(--radius-lg); overflow: hidden;
  background: radial-gradient(700px 400px at 50% 50%, #0f3a6b, var(--navy-950));
  border: 1px solid var(--line-dark);
  aspect-ratio: 820 / 640;
  user-select: none;
}
.compare .carb { position: absolute; inset: 0; width: 100%; height: 100%; }
.compare__after { position: absolute; inset: 0; clip-path: inset(0 0 0 calc(var(--pos) * 1%)); }
.compare__line {
  position: absolute; top: 0; bottom: 0; left: calc(var(--pos) * 1%); width: 2px; background: #fff;
  transform: translateX(-1px); pointer-events: none;
}
.compare__handle {
  position: absolute; top: 50%; left: calc(var(--pos) * 1%);
  width: 46px; height: 46px; border-radius: 50%; background: #fff; color: var(--navy-900);
  transform: translate(-50%, -50%); display: grid; place-items: center; pointer-events: none;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .4);
}
.compare__range {
  position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize;
  -webkit-appearance: none; appearance: none;
}
.compare__range:focus-visible + .compare__line { background: var(--red); }
.compare__label {
  position: absolute; top: 14px; padding: 6px 12px; border-radius: 999px; font-size: 13px; font-weight: 600;
  background: rgba(6, 18, 35, .75); color: var(--paper); pointer-events: none;
}
.compare__label--before { left: 14px; }
.compare__label--after { right: 14px; }
.checklist li { position: relative; padding: 8px 0 8px 30px; color: var(--paper-2); border-bottom: 1px solid var(--line-dark); }
.checklist li:last-child { border-bottom: 0; }
.checklist li::before {
  content: ""; position: absolute; left: 2px; top: 15px; width: 14px; height: 7px;
  border-left: 2.5px solid var(--red); border-bottom: 2.5px solid var(--red); transform: rotate(-45deg);
}
.on-light .checklist li { color: var(--ink-2); border-bottom-color: var(--line-light); }
.vapor__price { margin-top: 26px; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.vapor__price .display { font-size: 48px; }
.vapor__price span { color: var(--paper-2); }
.parts-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.parts-list li { border: 1px solid var(--line-dark); border-radius: 999px; padding: 7px 14px; font-size: 14px; color: var(--paper-2); }
@media (max-width: 900px) { .vapor__grid { grid-template-columns: 1fr; } }

/* ---------- pricing ledger ---------- */
.pricing { background: var(--satin-100); padding: var(--section) 0; }
.ledger { border-top: 2px solid var(--ink); }
.ledger__row {
  display: grid; grid-template-columns: minmax(0, 1.1fr) auto minmax(0, 1.4fr) auto;
  gap: clamp(18px, 3vw, 44px); align-items: start;
  padding: clamp(24px, 3vw, 40px) 0; border-bottom: 1px solid var(--line-light);
}
.ledger__name { margin: 0; }
.ledger__name small { display: block; font-family: var(--font-body); font-weight: 400; font-size: 16px; text-transform: none; letter-spacing: 0; color: var(--ink-2); margin-top: 8px; line-height: 1.45; }
.ledger__price { font-family: var(--font-display); font-weight: 800; font-size: clamp(56px, 6vw, 92px); line-height: .9; letter-spacing: .01em; color: var(--navy-700); white-space: nowrap; }
.ledger__price small { display: block; font-family: var(--font-body); font-weight: 500; font-size: 14px; color: var(--ink-3); margin-top: 8px; letter-spacing: 0; }
.ledger__includes { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 20px; align-self: center; }
.ledger__includes li { position: relative; padding: 4px 0 4px 24px; font-size: 15px; color: var(--ink-2); }
.ledger__includes li::before {
  content: ""; position: absolute; left: 0; top: 11px; width: 12px; height: 6px;
  border-left: 2px solid var(--red); border-bottom: 2px solid var(--red); transform: rotate(-45deg);
}
.ledger__cta { align-self: center; }
.ledger__row--featured { background: #fff; margin: 0 calc(-1 * clamp(16px, 2vw, 28px)); padding-inline: clamp(16px, 2vw, 28px); border-left: 4px solid var(--red); }
.ledger__row--featured .ledger__price { color: var(--red); }
.fineprint { margin-top: 26px; font-size: 15px; color: var(--ink-2); max-width: 78ch; }
.fineprint p { margin-bottom: 6px; }

@media (max-width: 1000px) {
  .ledger__row { grid-template-columns: minmax(0, 1fr) auto; }
  .ledger__includes, .ledger__cta { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .ledger__row { grid-template-columns: 1fr; }
  .ledger__includes { grid-template-columns: 1fr; }
}

/* ---------- beyond carbs ---------- */
.beyond { background: var(--satin-50); padding: var(--section) 0; border-top: 1px solid var(--line-light); }
.beyond__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); }
.beyond__col h3 { margin: 0 0 12px; }
.beyond__col p { color: var(--ink-2); }
.beyond__col .checklist li { color: var(--ink-2); border-bottom-color: var(--line-light); }
.machines { margin-top: clamp(36px, 5vw, 56px); padding-top: clamp(24px, 3vw, 36px); border-top: 1px solid var(--line-light); }
.machines p { color: var(--ink-2); margin-bottom: 14px; }
.machines ul { display: flex; flex-wrap: wrap; gap: 8px; }
.machines li { border: 1px solid var(--satin-300); background: #fff; border-radius: 999px; padding: 8px 16px; font-size: 15px; font-weight: 500; }
@media (max-width: 800px) { .beyond__grid { grid-template-columns: 1fr; } }

/* ---------- mobile SXS band ---------- */
.sxs-band { background: var(--navy-700); color: var(--paper); padding: clamp(48px, 6vw, 88px) 0; }
.sxs-band__grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(24px, 4vw, 64px); align-items: center; }
.sxs-band .lede { color: var(--paper-2); }
.sxs-band__facts { display: grid; gap: 12px; }
.sxs-band__facts li { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: baseline; padding: 12px 0; border-top: 1px solid rgba(255, 255, 255, .18); }
.sxs-band__facts li:last-child { border-bottom: 1px solid rgba(255, 255, 255, .18); }
.sxs-band__facts strong { font-family: var(--font-display); font-weight: 800; font-size: 34px; line-height: 1; letter-spacing: .01em; }
.sxs-band__facts span { color: var(--paper-2); }
.brands { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 18px 0 26px; font-weight: 600; }
.brands li { color: var(--paper); }
@media (max-width: 860px) { .sxs-band__grid { grid-template-columns: 1fr; } }

/* ---------- mail-in ---------- */
.mailin { background: var(--satin-100); padding: var(--section) 0; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 8px; }
.steps li { counter-increment: step; position: relative; padding: 26px 22px 24px; background: #fff; border: 1px solid var(--line-light); border-radius: var(--radius-lg); }
.steps li::before {
  content: counter(step);
  display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  background: var(--navy-700); color: #fff; font: 700 17px var(--font-body); margin-bottom: 14px;
}
.steps h3 { margin: 0 0 8px; font-size: 20px; font-weight: 700; }
.steps p { margin: 0; color: var(--ink-2); font-size: 15px; }
.steps li.is-warn { border-color: var(--red); }
.steps li.is-warn::before { background: var(--red); }
.callout {
  margin-top: 22px; padding: 16px 20px; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line-light); border-left: 4px solid var(--red);
  font-weight: 600;
}
@media (max-width: 960px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .steps { grid-template-columns: 1fr; } }

/* ---------- quote form ---------- */
.quote { background: var(--satin-100); padding: 0 0 var(--section); }
.quote__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, .8fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
.form-card { background: #fff; border: 1px solid var(--line-light); border-radius: var(--radius-lg); padding: clamp(22px, 3vw, 40px); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; }
.field { display: grid; gap: 6px; }
.field--full { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: 15px; }
.field label span { color: var(--red); }
.field input, .field select, .field textarea {
  font: inherit; color: var(--ink); background: var(--satin-50);
  border: 1px solid var(--satin-300); border-radius: var(--radius); padding: 12px 14px; min-height: 50px; width: 100%;
  transition: border-color .18s, box-shadow .18s;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--navy-700); box-shadow: 0 0 0 3px rgba(0, 60, 125, .18); }
.field.is-invalid input, .field.is-invalid select { border-color: var(--red); }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 22px; }
.form-status { font-weight: 600; font-size: 15px; margin: 0; }
.form-status.is-error { color: var(--red-deep); }
.form-status.is-ok { color: #166534; }
.form-note { margin: 18px 0 0; font-size: 14px; color: var(--ink-3); }
.contact-card { padding: 4px 0; }
.contact-card h3 { margin: 0 0 12px; }
.contact-card p { color: var(--ink-2); }
.contact-card dl { margin: 22px 0 0; display: grid; gap: 14px; }
.contact-card dt { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); font-weight: 700; }
.contact-card dd { margin: 2px 0 0; font-size: 20px; font-weight: 600; }
.contact-card dd a { text-decoration: none; color: var(--navy-700); }
.contact-card dd a:hover { text-decoration: underline; }
@media (max-width: 900px) { .quote__grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.site-footer { background: #fff; border-top: 1px solid var(--line-light); padding: clamp(36px, 5vw, 56px) 0 28px; }
.site-footer__grid { display: grid; grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, .7fr)); gap: 28px; align-items: start; }
.site-footer img { height: 30px; width: auto; }
.site-footer p { color: var(--ink-2); font-size: 15px; max-width: 42ch; margin: 14px 0 0; }
.site-footer h4 { margin: 0 0 10px; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); }
.site-footer li { padding: 4px 0; }
.site-footer li a { text-decoration: none; color: var(--ink); font-weight: 500; }
.site-footer li a:hover { color: var(--red); }
.site-footer__bottom { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--line-light); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; font-size: 14px; color: var(--ink-3); }
@media (max-width: 760px) { .site-footer__grid { grid-template-columns: 1fr 1fr; } .site-footer__grid > :first-child { grid-column: 1 / -1; } }

/* =========================================================
   SXS / mobile page
   ========================================================= */
.sxs-hero {
  background: radial-gradient(1000px 600px at 20% 30%, #0f3a6b 0%, var(--navy-900) 55%, var(--navy-950) 100%);
  color: var(--paper); padding: clamp(56px, 8vw, 120px) 0 clamp(40px, 5vw, 72px);
}
.sxs-hero .lede { margin-top: 22px; }
.sxs-hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.sxs-stats { display: grid; grid-template-columns: repeat(3, auto); gap: 32px; margin-top: 44px; justify-content: start; }
.sxs-stats li { border-left: 2px solid var(--red); padding-left: 16px; }
.sxs-stats strong { display: block; font-family: var(--font-display); font-weight: 800; font-size: 34px; line-height: 1; }
.sxs-stats span { color: var(--paper-2); font-size: 15px; }
@media (max-width: 560px) { .sxs-stats { grid-template-columns: 1fr; gap: 16px; } }

.menu { background: var(--satin-100); padding: var(--section) 0; }
.menu__list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 clamp(28px, 5vw, 72px); border-top: 2px solid var(--ink); }
.menu__list li { padding: 22px 0; border-bottom: 1px solid var(--line-light); }
.menu__list h3 { margin: 0 0 6px; font-size: 22px; font-weight: 700; }
.menu__list p { margin: 0; color: var(--ink-2); }
@media (max-width: 760px) { .menu__list { grid-template-columns: 1fr; } }

.area { background: var(--satin-50); padding: var(--section) 0; border-top: 1px solid var(--line-light); }
.area__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: start; }
.area .steps { grid-template-columns: 1fr 1fr; }
.cities { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.cities li { border: 1px solid var(--satin-300); background: #fff; border-radius: 999px; padding: 8px 16px; font-size: 15px; font-weight: 500; }
@media (max-width: 900px) { .area__grid { grid-template-columns: 1fr; } }

.tuneup { background: var(--satin-100); padding: var(--section) 0; border-top: 1px solid var(--line-light); }
.tuneup__grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, .8fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; border-bottom: 2px solid var(--ink); padding-bottom: 10px; margin-bottom: 18px; }
.tab { border: 1px solid transparent; background: transparent; border-radius: var(--radius); padding: 10px 16px; font-weight: 600; cursor: pointer; color: var(--ink-2); }
.tab:hover { background: #fff; }
.tab[aria-selected="true"] { background: var(--navy-700); color: #fff; }
.tabpanel[hidden] { display: none; }
.model { background: #fff; border: 1px solid var(--line-light); border-radius: var(--radius-lg); margin-bottom: 12px; }
.model summary {
  list-style: none; cursor: pointer; display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 12px 20px;
  padding: 18px 20px;
}
.model summary::-webkit-details-marker { display: none; }
.model summary h3 { margin: 0; font-size: 20px; font-weight: 700; }
.model summary small { display: block; font-size: 14px; color: var(--ink-3); font-weight: 500; margin-top: 2px; }
.model__total { font-family: var(--font-display); font-weight: 800; font-size: 34px; line-height: 1; color: var(--navy-700); white-space: nowrap; }
.model__total small { display: block; font-family: var(--font-body); font-size: 12px; font-weight: 600; color: var(--ink-3); letter-spacing: .04em; text-transform: uppercase; }
.model__chev { width: 12px; height: 12px; border-right: 2px solid var(--ink-2); border-bottom: 2px solid var(--ink-2); transform: rotate(45deg); transition: transform .2s; margin-top: -4px; }
.model[open] .model__chev { transform: rotate(-135deg); margin-top: 4px; }
.model__body { padding: 0 20px 20px; border-top: 1px solid var(--line-light); }
.parts-table { width: 100%; border-collapse: collapse; margin-top: 14px; font-size: 15px; }
.parts-table th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); padding: 10px 8px 8px 0; border-bottom: 1px solid var(--line-light); }
.parts-table td { padding: 9px 8px 9px 0; border-bottom: 1px solid var(--line-light); vertical-align: top; }
.parts-table td:last-child, .parts-table th:last-child { text-align: right; padding-right: 0; white-space: nowrap; }
.parts-table tfoot td { font-weight: 600; border-bottom: 0; }
.parts-table tfoot tr.is-total td { font-size: 18px; padding-top: 14px; color: var(--navy-700); }
.model__foot { margin: 12px 0 0; font-size: 13px; color: var(--ink-3); }
.includes-card { background: #fff; border: 1px solid var(--line-light); border-radius: var(--radius-lg); padding: clamp(20px, 2.6vw, 30px); position: sticky; top: calc(var(--header-h) + 20px); }
.includes-card h3 { margin: 0 0 6px; }
.includes-card p { color: var(--ink-2); font-size: 15px; }
.includes-card .checklist li { color: var(--ink-2); border-bottom-color: var(--line-light); font-size: 15px; }
.rate { display: flex; align-items: baseline; gap: 10px; margin: 14px 0 18px; }
.rate strong { font-family: var(--font-display); font-weight: 800; font-size: 44px; line-height: 1; color: var(--navy-700); }
.rate span { color: var(--ink-2); font-size: 15px; }
@media (max-width: 960px) { .tuneup__grid { grid-template-columns: 1fr; } .includes-card { position: static; } }
@media (max-width: 560px) { .model summary { grid-template-columns: minmax(0, 1fr) auto; } .model__chev { display: none; } }

.carb-band { background: var(--navy-900); color: var(--paper); padding: clamp(48px, 6vw, 88px) 0; }
.carb-band__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
.carb-band .carb { width: 100%; height: auto; filter: drop-shadow(0 24px 34px rgba(0, 0, 0, .45)); }
@media (max-width: 860px) { .carb-band__grid { grid-template-columns: 1fr; } .carb-band .carb { max-width: 560px; margin: 0 auto; } }