/* ============================================================
   Mountain CNC — Precision-Industrial Design System (light)
   Brand: Copper-Gold #CA974D · Accent Blue #507282 · Warm Black #231F20
   Type: Inter (Bold headlines / Regular body) — per Brand Style Guide Aug 2024
   Light-first: white/warm-gray body, accent-blue bands, warm-black
   reserved for header, heroes, and footer (metal-texture logo rule).
   ============================================================ */

:root {
  --copper: #CA974D;
  --copper-bright: #E0B36A;
  --copper-deep: #A87B3A;
  --copper-dim: rgba(202, 151, 77, 0.55);
  --hairline: rgba(202, 151, 77, 0.35);
  --hairline-dark: rgba(35, 31, 32, 0.12);
  --blue: #507282;
  --blue-deep: #3D5765;
  --blue-tint: #EDF2F4;
  --black: #231F20;
  --black-deep: #1A1718;
  --ink: #231F20;
  --ink-dim: #57514C;
  --ink-faint: #8A847E;
  --paper: #FAF8F5;
  --paper-alt: #F1EEE9;
  --white: #FFFFFF;
  --maxw: 1240px;
  --radius: 2px;
  --step-bg: var(--paper);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-weight: 400;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--copper-deep); text-decoration: none; }
a:hover { color: var(--copper); }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.15; color: var(--black); letter-spacing: -0.01em; }
h1 { font-size: clamp(2.4rem, 5vw, 3.9rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
h3 { font-size: 1.25rem; }
p  { color: var(--ink-dim); }
.num, .specbar, .stat-value, .spec-table dd { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
section { position: relative; }

/* ---------- eyebrow label ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--copper-deep); margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 34px; height: 1px; background: var(--copper); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; padding: 15px 34px;
  font-weight: 700; font-size: 0.92rem; letter-spacing: 0.06em; text-transform: uppercase;
  background: var(--copper); color: var(--black); border: 1px solid var(--copper);
  border-radius: var(--radius); transition: background .2s, color .2s, border-color .2s;
}
.btn:hover { background: var(--copper-bright); border-color: var(--copper-bright); color: var(--black); }
.btn-ghost { background: transparent; color: var(--copper-deep); border-color: var(--copper); }
.btn-ghost:hover { background: rgba(202,151,77,.1); color: var(--copper-deep); }
.btn-row { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- corner-tick cards ---------- */
.tick {
  position: relative;
  border: 1px solid var(--hairline-dark);
  background: var(--white);
  padding: 34px 30px;
  box-shadow: 0 1px 3px rgba(35,31,32,0.04);
}
.tick::before, .tick::after {
  content: ""; position: absolute; width: 14px; height: 14px; pointer-events: none;
}
.tick::before { top: -1px; left: -1px; border-top: 2px solid var(--copper); border-left: 2px solid var(--copper); }
.tick::after  { bottom: -1px; right: -1px; border-bottom: 2px solid var(--copper); border-right: 2px solid var(--copper); }
.tick h3 { margin-bottom: 10px; }
.tick p { font-size: 0.95rem; }
a.tick { display: block; }
a.tick:hover { border-color: var(--copper-dim); }
a.tick h3 { color: var(--black); }

/* ---------- header (dark — metal logo rule) ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(26, 23, 24, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--hairline);
  transition: background .25s;
}
.site-header.scrolled { background: rgba(26, 23, 24, 0.98); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.brand img { height: 48px; width: auto; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav > a, .nav-dd > button {
  font: inherit; font-size: 0.86rem; font-weight: 600; letter-spacing: 0.04em;
  color: #EDEAE6; padding: 28px 14px; background: none; border: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
}
.nav > a:hover, .nav-dd > button:hover { color: var(--copper); }
.nav-dd { position: relative; }
.nav-dd > button::after { content: "▾"; font-size: 0.65rem; color: var(--copper); }
/* dropdown: flush to trigger (no hover gap), copper rule on top */
.dd-menu {
  position: absolute; top: 100%; left: 0; min-width: 260px;
  background: var(--black-deep); border: 1px solid var(--hairline); border-top: 2px solid var(--copper);
  padding: 10px 0; display: none; z-index: 110;
}
.nav-dd:hover .dd-menu, .nav-dd:focus-within .dd-menu { display: block; }
.dd-menu a { display: block; padding: 10px 22px; font-size: 0.87rem; color: #B9B3AD; }
.dd-menu a:hover { color: var(--copper); background: rgba(202,151,77,.07); }
.nav .btn { padding: 11px 22px; margin-left: 14px; font-size: 0.8rem; }
.nav-toggle { display: none; background: none; border: 1px solid var(--hairline); color: var(--copper); font-size: 1.3rem; padding: 6px 12px; cursor: pointer; }

/* ---------- dark hero contexts ---------- */
.hero, .page-hero { color: #EDEAE6; }
.hero h1, .hero h2, .page-hero h1 { color: #fff; }
.hero p, .page-hero .lede { color: #C9C3BD; }
.hero .eyebrow, .page-hero .eyebrow { color: var(--copper); }

/* homepage hero: split layout with visible shop-tour video */
.hero {
  position: relative; padding: 170px 0 90px; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 88% -10%, rgba(80,114,130,0.30), transparent 60%),
    radial-gradient(900px 460px at -10% 115%, rgba(202,151,77,0.14), transparent 60%),
    var(--black-deep);
  border-bottom: 1px solid var(--hairline);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero-content .lede { font-size: 1.1rem; margin: 22px 0 32px; max-width: 600px; }
.hero-content h1 em { font-style: normal; color: var(--copper); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 38px; }
.hero-tags a {
  font-size: 0.76rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: #B9B3AD; border: 1px solid rgba(255,255,255,0.14); padding: 7px 14px; border-radius: 2px;
}
.hero-tags a:hover { color: var(--copper); border-color: var(--copper-dim); }
.hero-video { position: relative; border: 1px solid rgba(255,255,255,0.14); background: #000; box-shadow: 0 30px 70px rgba(0,0,0,0.45); }
.hero-video::before, .hero-video::after { content: ""; position: absolute; width: 18px; height: 18px; z-index: 2; pointer-events: none; }
.hero-video::before { top: -1px; left: -1px; border-top: 3px solid var(--copper); border-left: 3px solid var(--copper); }
.hero-video::after  { bottom: -1px; right: -1px; border-bottom: 3px solid var(--copper); border-right: 3px solid var(--copper); }
.hero-video video { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.hero-video figcaption {
  position: absolute; left: 0; right: 0; top: 0; z-index: 1; pointer-events: none;
  padding: 16px 18px 30px; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase;
  color: #fff; background: linear-gradient(180deg, rgba(26,23,24,0.8), transparent);
}
.hero-video figcaption span { color: var(--copper); }

.vid-sound {
  position: absolute; top: 12px; right: 12px; z-index: 3;
  font: 700 0.7rem/1 var(--font); letter-spacing: 0.14em; text-transform: uppercase;
  color: #fff; background: rgba(26,23,24,0.72); border: 1px solid var(--copper-dim);
  padding: 9px 14px; border-radius: 2px; cursor: pointer; transition: background .2s, border-color .2s;
}
.vid-sound:hover { background: rgba(26,23,24,0.92); border-color: var(--copper); }
.vid-sound.on { color: var(--copper-bright); border-color: var(--copper); }

/* ---------- industry photo cards (homepage) ---------- */
.ind-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ind-card {
  position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; aspect-ratio: 16/11; overflow: hidden; border: 1px solid var(--hairline-dark);
  background-size: cover; background-position: center; isolation: isolate;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.ind-card::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(0deg, rgba(26,23,24,0.78), rgba(26,23,24,0.38));
  transition: background .25s;
}
.ind-card::after {
  content: ""; position: absolute; top: -1px; left: -1px; width: 16px; height: 16px; z-index: 1;
  border-top: 2px solid var(--copper); border-left: 2px solid var(--copper);
}
.ind-card:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(35,31,32,0.22); border-color: var(--copper-dim); }
.ind-card:hover::before { background: linear-gradient(0deg, rgba(26,23,24,0.85), rgba(61,87,101,0.45)); }
.ind-card img, .ind-card svg { position: relative; z-index: 1; height: 58px; width: auto; }
.ind-card img { filter: brightness(0) invert(1) drop-shadow(0 2px 6px rgba(0,0,0,0.5)); }
.ind-card svg { filter: drop-shadow(0 2px 6px rgba(0,0,0,0.5)); }
.ind-card h3 { position: relative; z-index: 1; color: #fff; font-size: 1.18rem; text-align: center; padding: 0 14px; text-shadow: 0 2px 8px rgba(0,0,0,0.55); }
.ind-card p { position: relative; z-index: 1; color: rgba(255,255,255,0.88); font-size: 0.84rem; text-align: center; max-width: 86%; margin-top: -4px; text-shadow: 0 1px 6px rgba(0,0,0,0.6); }
@media (max-width: 1024px) { .ind-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 720px) { .ind-grid { grid-template-columns: 1fr; } .ind-card { aspect-ratio: 16/9; } }

/* interior page hero */
.page-hero { padding: 175px 0 70px; border-bottom: 1px solid var(--hairline); background:
  radial-gradient(1100px 480px at 85% -10%, rgba(80,114,130,0.24), transparent 60%),
  radial-gradient(900px 420px at -10% 110%, rgba(202,151,77,0.12), transparent 60%), var(--black-deep); }
.page-hero .lede { font-size: 1.1rem; max-width: 720px; margin-top: 20px; }
.crumbs { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 22px; }
.crumbs a { color: var(--ink-faint); } .crumbs a:hover { color: var(--copper); }
.crumbs span { color: var(--copper); }

/* ---------- cert spec bar (dark anchor under hero) ---------- */
.specbar { border-bottom: 1px solid var(--hairline); background: var(--black); }
.specbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 18px 28px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 28px;
}
.specbar .spec { display: flex; flex-direction: column; gap: 2px; }
.specbar .spec b { font-size: 0.95rem; color: #fff; font-weight: 700; letter-spacing: 0.04em; }
.specbar .spec span { font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--copper); }

/* ---------- sections ---------- */
.section { padding: 96px 0; --step-bg: var(--paper); }
.section-alt { background: var(--blue-tint); border-top: 1px solid var(--hairline-dark); border-bottom: 1px solid var(--hairline-dark); --step-bg: var(--blue-tint); }
.section-head { max-width: 780px; margin-bottom: 56px; }
.section-head p { font-size: 1.05rem; margin-top: 16px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- grids ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }

/* ---------- stats (accent-blue band) ---------- */
.stats-band { background: linear-gradient(120deg, var(--blue-deep), var(--blue)); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.stat { border-left: 1px solid rgba(255,255,255,0.25); padding: 8px 0 8px 26px; }
.stat-value { font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 700; color: #fff; line-height: 1; }
.stat-label { margin-top: 10px; font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.85); }

/* ---------- process steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.step { position: relative; border-top: 1px solid var(--hairline); padding-top: 26px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 0.85rem; font-weight: 700; color: var(--copper-deep); letter-spacing: 0.1em;
  position: absolute; top: -11px; left: 0; padding-right: 14px;
  background: var(--step-bg);
}
.step h3 { font-size: 1.05rem; margin-bottom: 10px; }
.step p { font-size: 0.93rem; }

/* ---------- capability / industry cards ---------- */
.card { position: relative; border: 1px solid var(--hairline-dark); background: var(--white); overflow: hidden; display: flex; flex-direction: column; transition: border-color .25s, transform .25s, box-shadow .25s; box-shadow: 0 1px 3px rgba(35,31,32,0.05); }
.card:hover { border-color: var(--copper-dim); transform: translateY(-4px); box-shadow: 0 14px 30px rgba(35,31,32,0.10); }
.card-img { aspect-ratio: 16/10; overflow: hidden; background: var(--paper-alt); }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.card:hover .card-img img { transform: scale(1.04); }
.card-body { padding: 26px 26px 30px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body h3 { font-size: 1.12rem; }
.card-body p { font-size: 0.92rem; flex: 1; }
.card-link { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--copper-deep); }
.card-link::after { content: " →"; }

/* ---------- spec tables (equipment) ---------- */
.machine { display: grid; grid-template-columns: 220px 1fr; gap: 26px; align-items: center; border: 1px solid var(--hairline-dark); background: var(--white); padding: 26px; box-shadow: 0 1px 3px rgba(35,31,32,0.04); }
.machine-img { background: var(--paper-alt); border-radius: var(--radius); padding: 10px; }
.machine-img img { width: 100%; height: 150px; object-fit: contain; mix-blend-mode: multiply; }
.machine h3 { margin-bottom: 8px; }
.machine .qty { color: var(--copper-deep); font-weight: 700; }
.spec-list { display: flex; flex-wrap: wrap; gap: 6px 22px; margin-top: 8px; padding: 0; list-style: none; }
.spec-list li { font-size: 0.88rem; color: var(--ink-dim); position: relative; padding-left: 14px; }
.spec-list li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 6px; height: 1px; background: var(--copper); }
.equip-group { margin-bottom: 64px; }
.equip-group > h2 { display: flex; align-items: center; gap: 18px; margin-bottom: 28px; font-size: 1.4rem; }
.equip-group > h2::after { content: ""; flex: 1; height: 1px; background: var(--hairline); }
.equip-stack { display: grid; gap: 18px; }

/* ---------- chips (materials / services) ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { font-size: 0.86rem; font-weight: 600; color: var(--ink); border: 1px solid var(--hairline); padding: 9px 18px; border-radius: 2px; background: var(--white); }
.chip small { color: var(--ink-faint); font-weight: 400; }

/* ---------- detail rows (alternating feature blocks) ---------- */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 64px 0; border-top: 1px solid var(--hairline-dark); }
.feature-row:first-of-type { border-top: none; padding-top: 0; }
.feature-row:last-of-type { padding-bottom: 0; }
.feature-row.flip > .feature-media { order: 2; }
.feature-media { border: 1px solid var(--hairline-dark); position: relative; background: var(--white); }
.feature-media::before { content: ""; position: absolute; top: -1px; left: -1px; width: 16px; height: 16px; border-top: 2px solid var(--copper); border-left: 2px solid var(--copper); z-index: 1; }
.feature-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.feature-copy h2 { margin-bottom: 16px; }
.feature-copy p + p { margin-top: 14px; }
.feature-copy h3 { margin-top: 8px; }
.feature-copy ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.feature-copy ul li { padding-left: 22px; position: relative; color: var(--ink-dim); font-size: 0.95rem; }
.feature-copy ul li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 10px; height: 1px; background: var(--copper); }
.feature-copy ul li b { color: var(--ink); }

/* ---------- client logos ---------- */
.clients { background: var(--white); border-top: 1px solid var(--hairline-dark); }
.clients-inner { max-width: var(--maxw); margin: 0 auto; padding: 64px 28px; }
.clients-label { text-align: center; font-size: 0.75rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 38px; font-weight: 700; }
.client-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 38px 44px; align-items: center; }
.client-grid img { max-height: 44px; width: auto; margin: 0 auto; filter: grayscale(1); opacity: 0.6; transition: filter .25s, opacity .25s; }
.client-grid img:hover { filter: none; opacity: 1; }
.client-grid img[src*="lasp"] { filter: grayscale(1) invert(1); }

/* ---------- CTA band (accent blue) ---------- */
.cta-band { background: linear-gradient(120deg, var(--blue-deep) 0%, var(--blue) 70%); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.cta-inner { max-width: var(--maxw); margin: 0 auto; padding: 84px 28px; display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-inner h2 { max-width: 560px; color: #fff; }
.cta-inner p { margin-top: 12px; max-width: 520px; color: rgba(255,255,255,0.85); }
.cta-band .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.6); }
.cta-band .btn-ghost:hover { background: rgba(255,255,255,0.1); color: #fff; }

/* ---------- gallery ---------- */
.gal-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gal-grid a { display: block; aspect-ratio: 1; overflow: hidden; border: 1px solid var(--hairline-dark); background: var(--white); }
.gal-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.gal-grid a:hover img { transform: scale(1.05); }

/* ---------- RFQ iframe ---------- */
.rfq-frame { border: 1px solid var(--hairline); background: #fff; width: 100%; height: 1150px; box-shadow: 0 10px 30px rgba(35,31,32,0.08); }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 40px; align-items: start; }
.contact-card { border: 1px solid var(--hairline-dark); background: var(--white); padding: 30px; margin-bottom: 18px; box-shadow: 0 1px 3px rgba(35,31,32,0.04); }
.contact-card h3 { font-size: 0.78rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--copper-deep); margin-bottom: 10px; }
.contact-card a, .contact-card p { font-size: 1.05rem; color: var(--ink); }
.map-frame { width: 100%; height: 320px; border: 1px solid var(--hairline-dark); }

/* ---------- certs page ---------- */
.cert-doc { border: 1px solid var(--hairline-dark); background: var(--white); padding: 18px; }
.cert-doc img { width: 100%; height: auto; aspect-ratio: auto; object-fit: contain; }
.feature-media:has(.cert-doc) { border: none; background: none; }
.feature-media:has(.cert-doc)::before { display: none; }

/* ---------- footer (dark — metal logo rule) ---------- */
.site-footer { background: var(--black-deep); border-top: 1px solid var(--hairline); padding: 76px 0 0; color: #B9B3AD; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 44px; padding-bottom: 56px; }
.footer-grid h4 { font-size: 0.74rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--copper); margin-bottom: 18px; }
.footer-grid ul { list-style: none; display: grid; gap: 10px; }
.footer-grid ul a { color: #B9B3AD; font-size: 0.92rem; }
.footer-grid ul a:hover { color: var(--copper); }
.footer-brand img { height: 60px; width: auto; margin-bottom: 20px; }
.footer-brand p { font-size: 0.92rem; max-width: 320px; color: #B9B3AD; }
.footer-badges { display: flex; gap: 16px; align-items: center; margin-top: 24px; }
.footer-badges img { height: 56px; width: auto; background: #fff; padding: 6px; border-radius: 2px; }
.footer-certline { font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: #8A847E; margin-top: 22px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 0.82rem; color: #8A847E; }
.footer-bottom a { color: #8A847E; } .footer-bottom a:hover { color: var(--copper); }
.footer-legal { display: flex; gap: 22px; }

/* ---------- reveal animations ----------
   Hidden state only applies when JS is running (html.js set by main.js),
   so content is always visible if JS fails or never fires. */
html.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
html.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html.js .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .grid-4, .stats, .steps { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .client-grid { grid-template-columns: repeat(4, 1fr); }
  .gal-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feature-row { grid-template-columns: 1fr; gap: 30px; padding: 48px 0; }
  .feature-row.flip > .feature-media { order: 0; }
  .contact-grid { grid-template-columns: 1fr; }
  .machine { grid-template-columns: 1fr; }
  .machine-img img { height: 180px; }
}
@media (max-width: 720px) {
  .nav { position: fixed; top: 80px; right: 0; left: 0; flex-direction: column; align-items: stretch;
         background: var(--black-deep); border-bottom: 1px solid var(--hairline); padding: 16px 24px 28px; display: none;
         max-height: calc(100dvh - 80px); overflow-y: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain;
         padding-bottom: calc(28px + env(safe-area-inset-bottom)); }
  .nav.open { display: flex; }
  .nav > a, .nav-dd > button { padding: 12px 14px; }
  .nav-dd .dd-menu { position: static; display: block; border: none; background: none; padding-left: 14px; }
  .nav .btn { margin: 14px 0 0; text-align: center; }
  .nav-toggle { display: block; }
  .grid-2, .grid-3, .grid-4, .stats, .steps { grid-template-columns: 1fr; }
  .client-grid { grid-template-columns: repeat(3, 1fr); }
  .gal-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 130px; }
  .section { padding: 64px 0; }
  .rfq-frame { height: 1300px; }
}