:root {
  --navy: #00376F;
  --navy-dark: #00264D;
  --charcoal: #3A3B3F;
  --paper: #F3EEE4;
  --paper-dark: #E8E1D2;
  --card: #FBF9F4;
  --brass: #B8793B;
  --brass-dark: #8F5B27;
  --line: #D8D0C0;

  --font-display: 'Zilla Slab', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--charcoal);
  font-family: var(--font-body);
  line-height: 1.6;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--navy);
  margin: 0 0 16px;
  line-height: 1.15;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; }

p { margin: 0 0 16px; color: var(--charcoal); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass-dark);
  margin-bottom: 10px;
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 14px 26px;
  border-radius: 3px;
  border: 1.5px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--navy);
  color: var(--paper);
}
.btn-primary:hover { background: var(--navy-dark); }

.btn-ghost {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-ghost:hover { background: var(--navy); color: var(--paper); }

.btn-small { padding: 10px 18px; font-size: 0.78rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand { display: flex; align-items: center; }
.brand-logo { height: 96px; width: auto; display: block; }

.site-nav {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  color: var(--charcoal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover { border-bottom-color: var(--brass); }

/* Hero */
.hero {
  padding: 90px 0 0;
  position: relative;
}

.hero-inner {
  max-width: 760px;
  text-align: left;
  padding-bottom: 56px;
}

.hero-sub {
  font-size: 1.08rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero-line {
  display: flex;
  align-items: center;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px 48px;
}

.dim-line {
  flex: 1;
  height: 1px;
  background: var(--line);
  position: relative;
}

.tick {
  width: 1px;
  height: 16px;
  background: var(--line);
}

/* Value props */
.value-props {
  background: var(--paper-dark);
  padding: 56px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.value-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--brass-dark);
  letter-spacing: 0.06em;
}

.value-item h3 { margin-top: 8px; }
.value-item p { font-size: 0.95rem; }

/* Products */
.products { padding: 88px 0; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.product-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 26px 22px;
}

.part-no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--paper);
  background: var(--navy);
  padding: 3px 8px;
  border-radius: 3px;
  margin-bottom: 14px;
}

.product-card p { font-size: 0.92rem; margin-bottom: 0; }

/* About */
.about { 
  padding: 88px 0;
  background: var(--navy);
  color: var(--paper);
}

.about .eyebrow { color: #E8B47A; }
.about h2 { color: var(--paper); }
.about p { color: #C9D6E4; font-size: 0.92rem; margin-bottom: 0; }


.about-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: start;
}

.about-inner p { max-width: 520px; }

.systems {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 26px;
}

.systems-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass-dark);
  margin-bottom: 14px;
}

.systems-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.systems-tags span {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 6px 12px;
  color: var(--navy);
}

/* Contact */
.contact {
  background: var(--paper-dark);
  border-top: 1px solid var(--line);
  padding: 88px 0;
  text-align: center;
}

.contact-inner { max-width: 620px; margin: 0 auto; }
.contact-sub { font-size: 1.02rem; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 18px;
}

.footer-logo { height: 56px; width: auto; opacity: 0.85; }
.footer-inner p { margin: 0; font-size: 0.85rem; color: var(--charcoal); }

/* Responsive */
@media (max-width: 900px) {
  .site-nav { display: none; }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .value-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}