/* ==========================================================================
   LAYOUT — header, navigation, footer, inner-page hero
   ========================================================================== */

/* ---------- Scroll progress bar ---------- */
.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: 0.1875rem;
  background: var(--pine);
  transform-origin: 0 50%;
  transform: scaleX(0);
}

/* ---------- Header ---------- */
#site-header { height: var(--header-h); }

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid transparent;
  backdrop-filter: saturate(160%) blur(0.75rem);
  -webkit-backdrop-filter: saturate(160%) blur(0.75rem);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.4s var(--ease);
}
.header.is-scrolled { border-bottom-color: var(--line); box-shadow: 0 0.375rem 1.5rem -1.125rem rgba(0, 0, 0, 0.35); }
.header.is-hidden { transform: translateY(-100%); }
.header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }

.brand { display: flex; align-items: center; gap: 0.625rem; }
.brand__logo { height: 2.5rem; width: auto; flex: none; transition: transform 0.6s var(--ease); }
.brand:hover .brand__logo { transform: rotate(-8deg) scale(1.05); }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font-family: var(--font-display); font-weight: 900; font-size: 1.125rem; letter-spacing: -0.01em; color: var(--ink); }
.brand__sub { margin-top: 0.25rem; font-size: 0.6875rem; font-weight: 700; color: var(--ink-soft); }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.25rem); }
.nav a { white-space: nowrap; }
.nav a {
  position: relative;
  font-size: 0.8438rem;
  font-weight: 600;
  color: var(--ink);
  padding: 0.375rem 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1.5px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}
.nav a:hover::after,
.nav a.is-active::after { transform: scaleX(1); transform-origin: left; }
.nav a.is-active { color: var(--ink); }
.nav .nav__cta {
  padding: 0.625rem 1.125rem;
  border-radius: 62.4375rem;
  background: var(--ink);
  color: #fff;
  transition: background 0.3s;
}
.nav .nav__cta::after { display: none; }
.nav .nav__cta:hover, .nav .nav__cta.is-active { background: var(--pine); color: #fff; }

.nav-toggle {
  display: none;
  width: 2.75rem; height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 1.125rem; height: 2px; background: var(--ink); position: relative;
  transition: transform 0.35s var(--ease), background 0.2s;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -0.375rem; }
.nav-toggle span::after { top: 0.375rem; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translateY(0.375rem) rotate(45deg); }
.nav-open .nav-toggle span::after { transform: translateY(-0.375rem) rotate(-45deg); }

@media (max-width: 1080px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem var(--gutter) 1.5rem;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    clip-path: inset(0 0 100% 0);
    transition: clip-path 0.5s var(--ease);
  }
  .nav-open .nav { clip-path: inset(0 0 0 0); }
  .nav a { font-size: 1.125rem; padding: 0.875rem 0; border-bottom: 1px solid var(--line); }
  .nav a::after { display: none; }
  .nav a.is-active { color: var(--pine); }
  .nav .nav__cta { margin-top: 1rem; text-align: center; border-bottom: 0; }
}

/* ---------- Inner page hero (Products, Capabilities, Quality …) ---------- */
.page-hero {
  position: relative;
  padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3rem, 7vw, 5rem);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.page-hero::after {
  /* faint engineering grid */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 3rem 3rem;
  mask-image: radial-gradient(ellipse at 80% 20%, #000 0%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse at 80% 20%, #000 0%, transparent 65%);
  opacity: 0.7;
}
.page-hero h1 { margin-top: 1.125rem; max-width: 62rem; }
.page-hero .lead { margin-top: 1.375rem; max-width: 48rem; }
.breadcrumb { display: flex; gap: 0.5rem; font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); margin-bottom: 1.75rem; }
.breadcrumb a:hover { color: var(--pine); }

/* ---------- Footer ---------- */
.footer { background: var(--coal); color: rgba(255, 255, 255, 0.6); padding: 5rem 0 2rem; position: relative; overflow: hidden; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2.5rem; }
.footer .brand__name { color: #fff; }
.footer .brand__logo { height: 2.75rem; padding: 0.25rem 0.375rem; background: #fff; border-radius: 0.5rem; box-sizing: content-box; }
.footer .brand__sub { color: rgba(255, 255, 255, 0.55); }
.footer__about { margin-top: 1.25rem; max-width: 20rem; font-size: 0.875rem; }
.footer h4 { color: #fff; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600; margin-bottom: 1.125rem; }
.footer li { margin-bottom: 0.625rem; font-size: 0.875rem; }
.footer a { transition: color 0.25s; }
.footer a:hover { color: var(--pine); }
.footer__contact li { display: flex; gap: 0.625rem; align-items: flex-start; }
.footer__contact svg { width: 1rem; height: 1rem; margin-top: 0.25rem; color: var(--pine); flex: none; }
.footer__big {
  margin-top: 4rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3rem, 13vw, 11rem);
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.14);
  white-space: nowrap;
  user-select: none;
}
.footer__bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem;
  font-size: 0.8125rem;
}
.to-top { display: inline-flex; align-items: center; gap: 0.375rem; }
.to-top svg { width: 0.875rem; height: 0.875rem; }

@media (max-width: 900px) { .footer__top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__top { grid-template-columns: 1fr; } }