:root {
  --ink: #0f1720;
  --steel-900: #16212c;
  --steel-800: #1f2d3a;
  --steel-700: #2b3d4e;
  --steel-500: #5c7183;
  --steel-200: #d3dce4;
  --steel-100: #e9eef2;
  --bg: #f6f8fa;
  --white: #ffffff;
  --text: #1b2430;
  --muted: #4a5868;
  --accent: #e8781e;
  --accent-light: #f5a05a;
  --accent-dark: #a94e08;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(15, 23, 32, 0.08);
  --font-head: "Barlow Semi Condensed", "Arial Narrow", Arial, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 0.6em;
  letter-spacing: 0.01em;
}

p { margin: 0 0 1em; }

a { color: inherit; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
}

.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;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
}
.skip-link:focus { top: 12px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(22, 33, 44, 0.97);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: saturate(140%) blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--white);
  line-height: 1.1;
  padding-left: 14px;
  border-left: 4px solid var(--accent);
}
.brand-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
}
.brand-sub {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-light);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.site-nav a {
  display: block;
  padding: 10px 14px;
  color: var(--steel-100);
  text-decoration: none;
  font-weight: 500;
  border-radius: 6px;
}
.site-nav a:hover { color: var(--white); background: rgba(255, 255, 255, 0.07); }
.site-nav .nav-cta {
  background: var(--accent);
  color: var(--ink);
  font-weight: 600;
}
.site-nav .nav-cta:hover { background: var(--accent-light); color: var(--ink); }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  position: relative;
}
.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  margin-left: -10px;
  background: var(--white);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle-bar { top: 50%; margin-top: -1px; }
.nav-toggle-bar::before,
.nav-toggle-bar::after { content: ""; left: 0; margin-left: 0; }
.nav-toggle-bar::before { top: -6px; }
.nav-toggle-bar::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-6px) rotate(-45deg); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border-radius: 8px;
  border: 2px solid transparent;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-primary { background: var(--accent); color: var(--ink); }
.btn-primary:hover { background: var(--accent-light); }
.btn-ghost { border-color: rgba(255, 255, 255, 0.45); color: var(--white); }
.btn-ghost:hover { border-color: var(--white); background: rgba(255, 255, 255, 0.08); }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px) 0 0 / 40px 40px,
    radial-gradient(ellipse at 80% 20%, rgba(232, 120, 30, 0.18), transparent 55%),
    linear-gradient(160deg, var(--steel-800) 0%, var(--steel-900) 55%, var(--ink) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  align-items: center;
  gap: 48px;
  padding-top: 96px;
  padding-bottom: 96px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-light);
}
.eyebrow-dark { color: var(--accent-dark); margin-bottom: 10px; }

.hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  max-width: 14ch;
}

.lead {
  font-size: 1.125rem;
  color: var(--steel-100);
  max-width: 56ch;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

.hero-facts {
  list-style: none;
  margin: 0;
  padding: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}
.hero-facts li { display: flex; flex-direction: column; }
.hero-facts strong {
  font-family: var(--font-head);
  font-size: 1.6rem;
  line-height: 1.1;
  color: var(--white);
}
.hero-facts span { font-size: 0.875rem; color: var(--steel-200); }

/* Decorative machined flange, pure CSS */
.hero-visual { display: flex; justify-content: center; }
.flange {
  position: relative;
  width: min(100%, 380px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    repeating-conic-gradient(from 0deg, rgba(255, 255, 255, 0.16) 0deg 6deg, transparent 6deg 15deg);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
}
.flange::before {
  content: "";
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  background:
    repeating-radial-gradient(circle, rgba(255, 255, 255, 0.05) 0 2px, transparent 2px 9px),
    linear-gradient(135deg, #8a9aa8 0%, #4f6171 45%, #2b3d4e 100%);
  box-shadow: inset 0 2px 6px rgba(255, 255, 255, 0.25), inset 0 -8px 20px rgba(0, 0, 0, 0.35);
}
.flange-ring {
  position: absolute;
  inset: 26%;
  border-radius: 50%;
  border: 3px solid rgba(232, 120, 30, 0.85);
  box-shadow: 0 0 0 10px rgba(15, 23, 32, 0.25);
}
.flange-core {
  position: absolute;
  inset: 38%;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, var(--steel-700), var(--ink) 70%);
  box-shadow: inset 0 4px 12px rgba(0, 0, 0, 0.6);
}

/* Sections */
.section { padding: 88px 0; }
.section-alt { background: var(--bg); border-top: 1px solid var(--steel-100); border-bottom: 1px solid var(--steel-100); }

.section-head { max-width: 680px; margin-bottom: 44px; }
.section h2 { font-size: clamp(1.9rem, 3.5vw, 2.6rem); color: var(--steel-900); }
.section-intro { color: var(--muted); font-size: 1.0625rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  position: relative;
  padding: 32px 28px 28px;
  background: var(--white);
  border: 1px solid var(--steel-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--steel-500));
}
.card-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--white);
  background: var(--steel-800);
  border-radius: 8px;
}
.card h3 { font-size: 1.4rem; color: var(--steel-900); }
.card p { color: var(--muted); margin: 0; }

/* About */
.about {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: start;
}
.about-text p { color: var(--muted); font-size: 1.0625rem; max-width: 60ch; }

.facts {
  margin: 0;
  padding: 8px 28px;
  background: var(--white);
  border: 1px solid var(--steel-200);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.facts div {
  padding: 16px 0;
  border-bottom: 1px solid var(--steel-100);
}
.facts div:last-child { border-bottom: 0; }
.facts dt {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel-500);
}
.facts dd { margin: 4px 0 0; font-weight: 500; color: var(--text); }

/* Contact */
.contact {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 28px;
  align-items: stretch;
}
.contact-card {
  padding: 32px 28px;
  color: var(--white);
  background: linear-gradient(160deg, var(--steel-800), var(--steel-900));
  border-radius: var(--radius);
}
.contact-card h3 { font-size: 1.6rem; margin-bottom: 4px; }
.contact-company { color: var(--accent-light); font-weight: 600; margin-bottom: 18px; }
.contact-card address {
  font-style: normal;
  font-size: 1.0625rem;
  color: var(--steel-100);
  margin-bottom: 26px;
}
.map {
  min-height: 360px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--steel-200);
  background: var(--steel-100);
}
.map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 0;
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: var(--steel-200);
  padding: 56px 0 28px;
  font-size: 0.9375rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 32px;
  align-items: start;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--white);
  margin: 0;
}
.footer-sub {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-light);
}
.footer-address { margin: 0; }
.footer-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 20px;
}
.footer-nav a { color: var(--steel-200); text-decoration: none; }
.footer-nav a:hover { color: var(--white); text-decoration: underline; }
.footer-legal { padding-top: 24px; font-size: 0.8125rem; color: #a9b6c2; }
.footer-legal p { margin: 0 0 6px; max-width: 90ch; }

/* Responsive */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; padding-top: 72px; padding-bottom: 72px; }
  .hero-visual { display: none; }
  .cards { grid-template-columns: 1fr 1fr; }
  .cards .card:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .about { grid-template-columns: 1fr; gap: 36px; }
  .contact { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-top nav { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    background: var(--steel-900);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; padding: 12px 20px 20px; gap: 4px; }
  .site-nav a { padding: 12px 14px; }
  .site-nav .nav-cta { text-align: center; margin-top: 6px; }
  .cards { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .footer-top { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  .hero-actions .btn { width: 100%; }
  .hero-facts { gap: 16px 28px; }
  .facts { padding: 4px 20px; }
  .contact-card { padding: 28px 22px; }
  .contact-card .btn { width: 100%; }
}