:root {
  --ink: #0b0c0a;
  --black: #000000;
  --panel: #121310;
  --panel-2: #191a16;
  --line: #34362f;
  --muted: #a5a89d;
  --light: #f3f4ef;
  --signal: #ffb800;
  --danger: #ffb800;
  --header-height: 82px;
  --page: min(1360px, calc(100vw - 80px));
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body {
  margin: 0;
  background: var(--ink);
  color: var(--light);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
::selection { background: var(--signal); color: var(--black); }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 14px;
  background: var(--signal);
  color: var(--black);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }
.scroll-track { position: fixed; inset: 0 0 auto; z-index: 101; height: 3px; background: transparent; }
.scroll-track span { display: block; width: 0; height: 100%; background: var(--signal); }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 40px;
  border-bottom: 1px solid rgba(243, 244, 239, .16);
  background: rgba(11, 12, 10, .76);
  backdrop-filter: blur(18px);
  transition: background .25s ease, height .25s ease;
}
.site-header.scrolled { height: 68px; background: rgba(11, 12, 10, .96); }
.brand { display: inline-flex; align-items: center; gap: 12px; width: max-content; line-height: 1; }
.brand-mark { width: 40px; height: 40px; }
.brand-mark path:first-child { fill: var(--signal); stroke: none; }
.brand-mark path:not(:first-child) { fill: none; stroke: var(--ink); stroke-width: 2.2; }
.brand span { display: grid; gap: 4px; letter-spacing: -.06em; }
.brand b { font-size: 16px; }
.brand small { color: var(--signal); font-size: 11px; letter-spacing: .34em; }
.desktop-nav { display: flex; align-items: center; gap: 30px; }
.desktop-nav a { position: relative; color: #d3d5cc; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.desktop-nav a::after { content: ""; position: absolute; inset: auto 0 -9px; height: 2px; background: var(--signal); transform: scaleX(0); transform-origin: right; transition: transform .25s ease; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.header-cta { justify-self: end; padding: 11px 16px; border: 1px solid var(--signal); color: var(--signal); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; transition: background .2s, color .2s; }
.header-cta:hover { background: var(--signal); color: var(--black); }
.menu-toggle, .mobile-nav { display: none; }

.hero {
  position: relative;
  min-height: 760px;
  height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-media { position: absolute; inset: 0; z-index: -3; background: radial-gradient(circle at 78% 44%, rgba(255,184,0,.1), transparent 32%), linear-gradient(135deg, #121410, #050605 72%); }
.hero-heavy-visual { position: absolute; inset: 9% 1% 4% 35%; display: grid; place-items: center; opacity: .72; }
.hero-heavy-visual svg { width: min(100%, 1080px); fill: none; stroke: rgba(243,244,239,.38); stroke-width: 3; vector-effect: non-scaling-stroke; }
.hero-heavy-visual .truck-body { fill: rgba(255,255,255,.018); }
.hero-heavy-visual .truck-wheel { fill: rgba(11,12,10,.9); stroke: var(--signal); stroke-width: 5; }
.hero-heavy-visual .diesel-flow { stroke: var(--signal); stroke-width: 2; stroke-dasharray: 14 18; animation: diesel-flow 5s linear infinite; }
.hero-heavy-visual > span { position: absolute; right: 7%; bottom: 13%; padding: 8px 12px; border: 1px solid rgba(255,184,0,.55); color: var(--signal); font-size: 10px; letter-spacing: .2em; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(0,0,0,.94) 0%, rgba(0,0,0,.82) 28%, rgba(0,0,0,.38) 58%, rgba(0,0,0,.12) 100%), linear-gradient(0deg, rgba(11,12,10,.65), transparent 55%); }
.hero-grid { position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(rgba(255,184,0,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,184,0,.08) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, black, transparent 62%); }
.hero-content { width: var(--page); margin: var(--header-height) auto 0; }
.eyebrow { margin: 0 0 22px; color: var(--signal); font-size: 12px; font-weight: 700; letter-spacing: .14em; }
.eyebrow::before { content: ""; display: inline-block; width: 34px; height: 2px; margin: 0 12px 3px 0; background: var(--signal); }
.hero h1 { max-width: 930px; margin: 0; font-size: clamp(48px, 6.7vw, 112px); line-height: .93; letter-spacing: -.075em; text-transform: uppercase; }
.hero h1 span { color: transparent; -webkit-text-stroke: 1px rgba(243,244,239,.76); }
.hero-copy { max-width: 660px; margin: 30px 0 0; color: #d3d5cc; font-size: clamp(15px, 1.25vw, 20px); line-height: 1.7; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; }
.button { min-height: 52px; display: inline-flex; justify-content: center; align-items: center; gap: 10px; padding: 0 22px; border: 1px solid var(--line); border-radius: 0; cursor: pointer; font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-3px); }
.button:focus-visible, a:focus-visible, summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }
.button-primary { border-color: var(--signal); background: var(--signal); color: var(--black); }
.button-primary:hover { background: var(--signal); border-color: var(--signal); }
.button-ghost { border-color: #696c62; background: transparent; color: var(--light); }
.button-ghost:hover { border-color: var(--light); }
.hero-status { position: absolute; right: 40px; bottom: 40px; display: flex; align-items: center; gap: 12px; padding: 14px 18px; border: 1px solid rgba(243,244,239,.26); background: rgba(11,12,10,.75); font-size: 12px; line-height: 1.4; }
.hero-status small { display: block; color: var(--muted); font-size: 9px; letter-spacing: .18em; }
.status-light { width: 9px; height: 9px; background: var(--signal); animation: pulse 1.8s infinite; }
.scroll-cue { position: absolute; bottom: 38px; left: 50%; width: 20px; height: 42px; border: 1px solid rgba(243,244,239,.45); }
.scroll-cue span { position: absolute; top: 7px; left: 8px; width: 2px; height: 8px; background: var(--signal); animation: scroll-cue 1.8s infinite; }

.service-ticker { overflow: hidden; padding: 15px 0; border-bottom: 1px solid var(--line); background: var(--signal); color: var(--black); }
.service-ticker div { display: flex; align-items: center; width: max-content; animation: ticker 26s linear infinite; }
.service-ticker span { font-size: 12px; font-weight: 700; letter-spacing: .1em; white-space: nowrap; }
.service-ticker i { width: 5px; height: 5px; margin: 0 28px; background: var(--black); }

.section { width: var(--page); margin: 0 auto; padding: 130px 0; }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 60px; align-items: end; margin-bottom: 60px; }
.section-heading .eyebrow { grid-column: 1 / -1; margin-bottom: -28px; }
.section h2, .specialty h2, .quote-section h2, .contact-strip h2 { margin: 0; font-size: clamp(37px, 4.6vw, 76px); line-height: 1.02; letter-spacing: -.065em; text-transform: uppercase; }
.section-heading > p:last-child, .process-sticky > p:not(.eyebrow), .specialty-copy > p:not(.eyebrow), .quote-intro > p:not(.eyebrow) { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-card { position: relative; min-height: 390px; padding: 34px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; transition: background .3s ease, color .3s ease; }
.service-card::after { content: ""; position: absolute; inset: auto 0 0; height: 3px; background: var(--signal); transform: scaleX(0); transform-origin: left; transition: transform .35s ease; }
.service-card:hover { background: var(--signal); color: var(--black); }
.service-card:hover::after { transform: scaleX(1); }
.service-card > span { color: var(--muted); font-size: 11px; }
.service-card svg { width: 58px; height: 58px; margin: 52px 0 38px; fill: none; stroke: var(--signal); stroke-width: 1.7; transition: stroke .3s, transform .3s; }
.service-card:hover svg { stroke: var(--black); transform: scale(1.08); }
.service-card h3 { margin: 0 0 16px; font-size: 20px; letter-spacing: -.04em; text-transform: uppercase; }
.service-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; transition: color .3s; }
.service-card:hover p, .service-card:hover > span { color: rgba(0,0,0,.7); }

.diagnostic-band { position: relative; padding: 90px max(40px, calc((100vw - 1360px) / 2)); border-block: 1px solid var(--line); background: var(--panel); overflow: hidden; }
.diagnostic-line { position: absolute; top: 117px; right: 0; left: 0; height: 1px; background: var(--line); }
.diagnostic-line span { display: block; width: 0; height: 3px; margin-top: -1px; background: var(--signal); transition: width .1s linear; }
.diagnostic-items { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.diagnostic-items div { display: grid; grid-template-columns: 56px 1fr; align-items: start; gap: 15px; }
.diagnostic-items strong { display: grid; place-items: center; width: 56px; height: 56px; border: 1px solid var(--signal); background: var(--panel); color: var(--signal); font-size: 12px; }
.diagnostic-items span { padding-top: 10px; font-size: 11px; font-weight: 700; line-height: 1.45; }

.process { display: grid; grid-template-columns: .8fr 1.2fr; gap: 110px; align-items: start; }
.process-sticky { position: sticky; top: 120px; }
.process-sticky h2 { margin-bottom: 28px; }
.text-link { display: inline-flex; gap: 15px; align-items: center; margin-top: 32px; border-bottom: 1px solid var(--signal); color: var(--signal); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.text-link svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; transition: transform .2s ease; }
.text-link:hover svg { transform: translateX(6px); }
.process-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.process-list li { display: grid; grid-template-columns: 90px 1fr; gap: 30px; padding: 44px 0; border-bottom: 1px solid var(--line); }
.process-list > li > span { color: var(--signal); font-size: 12px; }
.process-list h3 { margin: 0 0 12px; font-size: clamp(20px, 2vw, 29px); line-height: 1.2; text-transform: uppercase; letter-spacing: -.045em; }
.process-list p { max-width: 600px; margin: 0; color: var(--muted); font-size: 14px; }

.specialty { display: grid; grid-template-columns: .8fr 1.2fr; min-height: 720px; border-block: 1px solid var(--line); background: var(--panel); }
.specialty-copy { display: flex; flex-direction: column; justify-content: center; padding: 90px max(40px, calc((100vw - 1360px) / 2)) 90px max(40px, calc((100vw - 1360px) / 2)); border-right: 1px solid var(--line); }
.specialty-copy h2 { max-width: 620px; margin-bottom: 28px; }
.specialty-copy > p:not(.eyebrow) { max-width: 580px; }
.specialty-copy ul { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 28px; margin: 36px 0 0; padding: 28px 0 0; border-top: 1px solid var(--line); list-style: none; }
.specialty-copy li { display: flex; align-items: center; gap: 10px; color: #d3d5cc; font-size: 12px; text-transform: uppercase; }
.specialty-copy li span { width: 7px; height: 7px; background: var(--signal); }
.specialty-panel { display: grid; place-items: center; min-width: 0; padding: 50px; overflow: hidden; background-image: linear-gradient(rgba(255,184,0,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,184,0,.06) 1px, transparent 1px); background-size: 42px 42px; }
.scanner { position: relative; width: min(100%, 740px); aspect-ratio: 1.6; border: 1px solid var(--line); background: rgba(11,12,10,.75); overflow: hidden; }
.scanner::before, .scanner::after { content: ""; position: absolute; z-index: 2; width: 32px; height: 32px; border-color: var(--signal); }
.scanner::before { top: 14px; left: 14px; border-top: 2px solid var(--signal); border-left: 2px solid var(--signal); }
.scanner::after { right: 14px; bottom: 14px; border-right: 2px solid var(--signal); border-bottom: 2px solid var(--signal); }
.scanner > svg { position: absolute; inset: 12% 5% 5%; width: 90%; height: 83%; fill: none; stroke: #71746a; stroke-width: 2; stroke-dasharray: 6 4; }
.scan-beam { position: absolute; z-index: 1; inset: 0 0 auto; height: 70px; background: linear-gradient(180deg, transparent, rgba(255,184,0,.18), var(--signal)); border-bottom: 1px solid var(--signal); animation: scan 4s ease-in-out infinite; }
.scan-label { position: absolute; z-index: 3; padding: 5px 7px; border: 1px solid var(--signal); background: var(--ink); color: var(--signal); font-size: 9px; }
.label-a { top: 31%; left: 27%; }.label-b { right: 19%; bottom: 21%; }.label-c { left: 38%; bottom: 13%; }

.faq .section-heading { grid-template-columns: 1fr; }
.accordion { border-top: 1px solid var(--line); }
.accordion details { border-bottom: 1px solid var(--line); }
.accordion summary { position: relative; padding: 28px 60px 28px 0; cursor: pointer; list-style: none; font-size: clamp(16px, 1.7vw, 22px); font-weight: 700; text-transform: uppercase; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary span::before, .accordion summary span::after { content: ""; position: absolute; top: 50%; right: 15px; width: 18px; height: 2px; background: var(--signal); transition: transform .2s ease; }
.accordion summary span::after { transform: rotate(90deg); }
.accordion details[open] summary span::after { transform: rotate(0); }
.accordion details p { max-width: 850px; margin: -5px 0 28px; color: var(--muted); font-size: 14px; }

.quote-section { display: grid; grid-template-columns: .75fr 1.25fr; gap: 90px; padding: 120px max(40px, calc((100vw - 1360px) / 2)); border-block: 1px solid var(--line); background: var(--panel); }
.quote-intro h2 { margin-bottom: 28px; }
.quote-assurances { display: grid; gap: 14px; margin-top: 36px; }
.quote-assurances span { display: flex; align-items: center; gap: 12px; color: #d3d5cc; font-size: 12px; }
.quote-assurances svg { width: 22px; height: 22px; fill: none; stroke: var(--signal); stroke-width: 1.7; }
.quote-form { padding: 42px; border: 1px solid var(--line); background: var(--ink); }
.form-progress { display: grid; grid-template-columns: auto 1fr auto 1fr auto; align-items: center; margin-bottom: 48px; }
.form-progress span { display: flex; align-items: center; gap: 8px; color: #70736a; font-size: 10px; text-transform: uppercase; }
.form-progress b { display: grid; place-items: center; width: 27px; height: 27px; border: 1px solid var(--line); font-size: 10px; }
.form-progress span.active { color: var(--light); }
.form-progress span.active b { border-color: var(--signal); background: var(--signal); color: var(--black); }
.form-progress i { height: 1px; margin: 0 12px; background: var(--line); }
.form-step { display: grid; gap: 22px; animation: form-in .3s ease; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.quote-form label, .quote-form legend { color: #d3d5cc; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.quote-form label em { color: #777a70; font-style: normal; font-weight: 400; text-transform: none; }
.quote-form input:not([type="radio"]):not([type="checkbox"]), .quote-form select, .quote-form textarea { width: 100%; margin-top: 8px; padding: 14px; border: 1px solid var(--line); border-radius: 0; background: var(--panel); color: var(--light); outline: 0; transition: border-color .2s; }
.quote-form input:focus, .quote-form select:focus, .quote-form textarea:focus { border-color: var(--signal) !important; }
.quote-form textarea { min-height: 140px; resize: vertical; }
.quote-form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--signal) 50%), linear-gradient(135deg, var(--signal) 50%, transparent 50%); background-position: calc(100% - 18px) 21px, calc(100% - 13px) 21px; background-size: 5px 5px; background-repeat: no-repeat; }
.quote-form fieldset { margin: 0; padding: 0; border: 0; }
.choice-row { display: flex; gap: 10px; margin-top: 9px; }
.choice { flex: 1; }
.choice input { position: absolute; opacity: 0; }
.choice span { display: grid; place-items: center; min-height: 48px; padding: 8px; border: 1px solid var(--line); cursor: pointer; color: var(--muted); text-align: center; transition: all .2s; }
.choice input:checked + span { border-color: var(--signal); background: rgba(255,184,0,.08); color: var(--signal); }
.choice input:focus-visible + span { outline: 2px solid var(--signal); outline-offset: 2px; }
.quote-form label small { display: none; margin-top: 5px; color: var(--danger); font-size: 10px; text-transform: none; }
.quote-form label.invalid small { display: block; }
.quote-form label.invalid input, .quote-form label.invalid select, .quote-form label.invalid textarea { border-color: var(--danger); }
.email-only-note { margin: 0; padding: 13px 15px; border-left: 2px solid var(--signal); background: rgba(255,184,0,.06); color: #b8baaf; font-size: 12px; line-height: 1.6; }
.char-count { display: block; margin-top: 5px; color: #777a70; font-size: 9px; text-align: right; }
.consent { display: grid; grid-template-columns: 20px 1fr; gap: 10px; align-items: start; font-weight: 400 !important; line-height: 1.6; text-transform: none !important; }
.consent input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--signal); }
.consent a { color: var(--signal); text-decoration: underline; }
.website-field { position: absolute; left: -10000px; }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 32px; }
.form-actions .form-back { margin-right: auto; }
.form-submit.loading span { opacity: .5; }
.form-submit i { display: none; width: 14px; height: 14px; border: 2px solid rgba(0,0,0,.35); border-top-color: var(--black); animation: spin .7s linear infinite; }
.form-submit.loading i { display: block; }
.form-error { margin-top: 20px; padding: 12px; border: 1px solid var(--danger); color: #ff8b84; font-size: 12px; }
.success-card { align-self: center; padding: 55px; border: 1px solid var(--signal); background: var(--ink); }
.success-card > svg { width: 76px; height: 76px; margin-bottom: 32px; fill: none; stroke: var(--signal); stroke-width: 2; }
.success-card h3 { margin: 0 0 16px; font-size: clamp(28px, 3vw, 46px); line-height: 1.05; text-transform: uppercase; }
.success-card > p:not(.eyebrow) { color: var(--muted); }
.success-card .text-link { padding: 0; background: none; cursor: pointer; }

.contact-strip { display: grid; grid-template-columns: 1fr auto auto; align-items: end; gap: 16px; padding: 80px max(40px, calc((100vw - 1360px) / 2)); background: var(--signal); color: var(--black); }
.contact-strip .eyebrow { color: var(--black); }
.contact-strip .eyebrow::before { background: var(--black); }
.contact-strip h2 { font-size: clamp(34px, 4vw, 64px); }
.button-dark { border-color: var(--black); background: var(--black); color: var(--signal); }
.button-dark:hover { background: transparent; color: var(--black); }

.site-footer { width: var(--page); margin: 0 auto; padding: 80px 0 24px; }
.footer-main { display: grid; grid-template-columns: 1.7fr repeat(3, 1fr); gap: 50px; padding-bottom: 70px; }
.footer-main > div { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.footer-main > div p { margin: 0 0 10px; color: var(--signal); font-size: 10px; font-weight: 700; letter-spacing: .1em; }
.footer-main > div a, .footer-main > div span { color: var(--muted); font-size: 12px; }
.footer-main > div a:hover { color: var(--signal); }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 24px; border-top: 1px solid var(--line); color: #777a70; font-size: 10px; }
.footer-bottom a { color: var(--muted); }
.toast { position: fixed; z-index: 200; right: 20px; bottom: 20px; max-width: 390px; padding: 14px 18px; border: 1px solid var(--signal); background: var(--ink); color: var(--light); font-size: 12px; transform: translateY(150%); transition: transform .3s ease; }
.toast.show { transform: translateY(0); }

.legal-header { grid-template-columns: 1fr auto; }
.legal { width: min(900px, calc(100vw - 40px)); margin: 0 auto; padding: 170px 0 80px; }
.legal h1 { max-width: 850px; margin: 0 0 28px; font-size: clamp(44px, 7vw, 86px); line-height: .95; letter-spacing: -.07em; text-transform: uppercase; }
.legal-lead { max-width: 720px; margin: 0 0 70px; color: var(--muted); font-size: 18px; }
.legal section { padding: 28px 0; border-top: 1px solid var(--line); }
.legal section h2 { margin: 0 0 12px; font-size: 19px; text-transform: uppercase; }
.legal section p { margin: 0; color: var(--muted); font-size: 14px; }
.legal > .button { margin-top: 35px; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes pulse { 50% { opacity: .25; } }
@keyframes scroll-cue { 0% { transform: translateY(0); opacity: 0; } 30% { opacity: 1; } 100% { transform: translateY(18px); opacity: 0; } }
@keyframes ticker { to { transform: translateX(-50%); } }
@keyframes scan { 0%, 100% { transform: translateY(-60px); } 50% { transform: translateY(390px); } }
@keyframes diesel-flow { to { stroke-dashoffset: -128; } }
@keyframes form-in { from { opacity: 0; transform: translateX(18px); } }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 1100px) {
  :root { --page: calc(100vw - 48px); }
  .site-header { padding: 0 24px; }
  .desktop-nav { display: none; }
  .site-header { grid-template-columns: 1fr auto auto; gap: 14px; }
  .menu-toggle { display: grid; place-items: center; gap: 6px; width: 46px; height: 44px; border: 1px solid var(--line); background: var(--ink); cursor: pointer; }
  .menu-toggle span { display: block; width: 20px; height: 1px; background: var(--light); transition: transform .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .mobile-nav { position: fixed; top: 68px; right: 0; left: 0; display: flex; flex-direction: column; padding: 20px 24px 34px; border-bottom: 1px solid var(--line); background: var(--ink); }
  .mobile-nav[hidden] { display: none; }
  .mobile-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); text-transform: uppercase; }
  .section-heading, .process, .quote-section { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .diagnostic-items { grid-template-columns: repeat(2, 1fr); gap: 44px; }
  .diagnostic-line { display: none; }
  .process { gap: 55px; }
  .process-sticky { position: static; }
  .specialty { grid-template-columns: 1fr; }
  .specialty-copy { border-right: 0; border-bottom: 1px solid var(--line); }
  .specialty-panel { min-height: 570px; }
  .quote-section { gap: 55px; }
  .contact-strip { grid-template-columns: 1fr auto; }
  .footer-main { grid-template-columns: 1.5fr repeat(3, 1fr); gap: 25px; }
}

@media (max-width: 720px) {
  :root { --header-height: 68px; --page: calc(100vw - 32px); }
  .site-header { padding: 0 16px; }
  .brand-mark { width: 34px; height: 34px; }
  .brand b { font-size: 13px; }.brand small { font-size: 9px; }
  .header-cta { display: none; }
  .hero { min-height: 720px; }
  .hero::before { background: linear-gradient(90deg, rgba(0,0,0,.94), rgba(0,0,0,.48)), linear-gradient(0deg, rgba(11,12,10,.82), transparent); }
  .hero-heavy-visual { inset: 18% -34% 16% 22%; opacity: .42; }
  .hero h1 { font-size: clamp(43px, 13vw, 68px); }
  .hero-content { margin-top: 20px; }
  .hero-copy { max-width: 92%; font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: stretch; max-width: 330px; }
  .hero-status { right: 16px; bottom: 22px; left: 16px; }
  .scroll-cue { display: none; }
  .section { padding: 90px 0; }
  .section-heading { gap: 22px; margin-bottom: 38px; }
  .section-heading .eyebrow { margin-bottom: 0; }
  .section h2, .specialty h2, .quote-section h2 { font-size: clamp(34px, 10vw, 51px); }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 340px; padding: 27px; }
  .service-card svg { margin: 42px 0 32px; }
  .diagnostic-band { padding: 70px 16px; }
  .diagnostic-items { grid-template-columns: 1fr; }
  .process { gap: 42px; }
  .process-list li { grid-template-columns: 48px 1fr; gap: 18px; padding: 35px 0; }
  .specialty-copy { padding: 80px 16px; }
  .specialty-copy ul { grid-template-columns: 1fr; }
  .specialty-panel { min-height: 360px; padding: 22px 16px; }
  .scanner { aspect-ratio: 1.2; }
  .quote-section { padding: 85px 16px; }
  .quote-form { padding: 25px 18px; }
  .form-progress span { font-size: 0; }
  .form-progress b { font-size: 10px; }
  .field-row { grid-template-columns: 1fr; }
  .choice-row { flex-direction: column; }
  .form-actions { flex-wrap: wrap; }
  .form-actions .button { flex: 1; }
  .success-card { padding: 34px 24px; }
  .contact-strip { grid-template-columns: 1fr; align-items: start; padding: 70px 16px; }
  .contact-strip .button { width: 100%; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-main > .brand { grid-column: 1 / -1; margin-bottom: 20px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}

@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; }
}