/* ============================================================
   PRECISIONEERING — Marketing Website shared styles
   Pairs with ../../colors_and_type.css
   ============================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--paper-050); color: var(--fg); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container { max-width: 1360px; margin: 0 auto; padding: 0 40px; }

/* ============================================
   SKIP-TO-CONTENT — keyboard a11y
   ============================================ */
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 100;
  padding: 12px 20px;
  background: var(--slate-900);
  color: var(--paper-050);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transform: translateY(-110%);
  transition: transform var(--dur-fast) var(--ease-out);
}
.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--rust-500);
  outline-offset: 2px;
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(239,238,236,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 80px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo img { height: 48px; width: auto; }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg);
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
  padding: 4px 0;
}
.nav-links a:hover { color: var(--rust-500); }
.nav-links a.active { color: var(--rust-500); }
.nav-links a.active::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -28px;
  height: 2px; background: var(--rust-500);
}
.nav-cta {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 12px 22px;
  background: var(--slate-800);
  color: var(--paper-050);
  border-radius: var(--r-md);
  transition: background var(--dur-fast) var(--ease-out);
}
.nav-cta:hover { background: var(--slate-900); }

/* Mobile nav toggle (hamburger) — hidden on desktop */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-xs);
  cursor: pointer;
  margin-left: 8px;
  padding: 0;
  color: var(--fg-strong);
}
.nav-toggle .bar {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: background var(--dur-fast) var(--ease-out);
}
.nav-toggle .bar::before,
.nav-toggle .bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur-fast) var(--ease-out);
}
.nav-toggle .bar::before { top: -6px; }
.nav-toggle .bar::after { top: 6px; }
.nav.is-open .nav-toggle .bar { background: transparent; }
.nav.is-open .nav-toggle .bar::before { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav-toggle .bar::after { transform: translateY(-6px) rotate(-45deg); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 16px 26px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}
.btn-primary { background: var(--rust-500); color: var(--paper-000); }
.btn-primary:hover { background: var(--rust-400); }
.btn-primary:active { background: var(--rust-700); transform: scale(0.98); }
.btn-ink { background: var(--slate-800); color: var(--paper-050); }
.btn-ink:hover { background: var(--slate-900); }
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--slate-800);
}
.btn-ghost:hover { background: var(--slate-800); color: var(--paper-050); }
.btn-ghost-light {
  background: transparent;
  color: var(--paper-050);
  border-color: var(--paper-050);
}
.btn-ghost-light:hover { background: var(--paper-050); color: var(--slate-800); }
.btn .arrow { font-family: var(--font-body); font-weight: 400; font-size: 16px; letter-spacing: 0; }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--rust-500);
  display: inline-flex; align-items: center; gap: 12px;
}
.eyebrow::before {
  content: ""; width: 28px; height: 1px; background: var(--rust-500);
}
.eyebrow.no-rule::before { display: none; }
.eyebrow.on-dark { color: var(--rust-300); }
.eyebrow.on-dark::before { background: var(--rust-300); }

/* ============================================
   PAGE BANNER (inner pages)
   ============================================ */
.page-banner {
  position: relative;
  min-height: 56vh;
  display: flex;
  align-items: flex-end;
  color: var(--paper-050);
  overflow: hidden;
  background: var(--slate-800);
}
.page-banner-img {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  filter: saturate(0.92);
}
.page-banner-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg,
    rgba(27,32,41,0.55) 0%,
    rgba(27,32,41,0.35) 40%,
    rgba(27,32,41,0.85) 100%);
}
.page-banner-content {
  position: relative; z-index: 2;
  width: 100%;
  padding: 0 40px 64px;
  max-width: 1360px;
  margin: 0 auto;
}
.page-banner h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 5vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--paper-050);
  margin: 24px 0 0;
  max-width: 16ch;
}
.page-banner h1 em {
  font-style: normal;
  color: var(--rust-300);
}
.page-banner p {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.5;
  color: var(--paper-100);
  max-width: 60ch;
  margin: 24px 0 0;
}
.crumbs {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-200);
  margin-bottom: 8px;
  display: flex; gap: 10px;
}
.crumbs a { color: var(--paper-200); }
.crumbs a:hover { color: var(--rust-300); }
.crumbs .sep { opacity: 0.4; }

/* ============================================
   SECTION
   ============================================ */
.section { padding: 120px 0; }
.section.tight { padding: 88px 0; }
.section-head {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  margin-bottom: 64px;
  align-items: end;
}
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 4.4vw, 64px);
  line-height: 1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--fg-strong);
  margin: 16px 0 0;
  max-width: 16ch;
}
.section-head .lead-col {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--fg-muted);
  padding-bottom: 8px;
}

/* ============================================
   FINAL CTA — used on every inner page
   ============================================ */
.final-cta {
  padding: 120px 0;
  background: var(--paper-050);
  border-top: 1px solid var(--border);
}
.final-cta .container {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 80px;
  align-items: center;
}
.final-cta h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 4.4vw, 64px);
  line-height: 1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--fg-strong);
  margin: 16px 0 24px;
}
.final-cta p {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.55;
  color: var(--fg-muted);
  margin: 0 0 36px;
  max-width: 50ch;
}
.final-cta-img {
  aspect-ratio: 4/3;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-2);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  background: var(--slate-900);
  color: var(--paper-200);
  padding: 64px 0 32px;
  border-top: 1px solid var(--slate-700);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--slate-700);
}
.footer-grid h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--rust-300);
  margin: 0 0 18px;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 2;
  color: var(--paper-300);
}
.footer-grid a:hover { color: var(--paper-050); }
.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 26px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--paper-050);
  margin-bottom: 16px;
}
.footer-brand-mark {
  display: inline-block;
  margin-bottom: 18px;
}
.footer-brand-mark img {
  height: 44px;
  width: auto;
  display: block;
  /* Inverts the slate-ink lockup to a paper-cream tone for the dark footer.
     Honors brand rule: logo is never recolored at the asset level — inversion is rendered, not stored. */
  filter: invert(1) brightness(0.97);
}
.footer-tagline {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.55;
  color: var(--paper-300);
  max-width: 36ch;
}
.footer-foot {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate-400);
  text-transform: uppercase;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============================================
   GENERIC INNER-PAGE PRIMITIVES
   ============================================ */
.prose {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg);
  max-width: 70ch;
}
.prose p { margin: 0 0 18px; }
.prose p:last-child { margin-bottom: 0; }

/* Two-column split — image / text */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.split.image-right { grid-template-columns: 1.05fr 1fr; }

.split-image {
  aspect-ratio: 4/5;
  background-size: cover;
  background-position: center;
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-2);
}
.split-image.wide { aspect-ratio: 4/3; }

/* Spec card — for capabilities and materials lists */
.spec-card {
  background: var(--paper-000);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out);
}
.spec-card:hover { border-color: var(--slate-300); }
.spec-card .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--rust-500);
}
.spec-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--fg-strong);
  margin: 0;
}
.spec-card p {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-muted);
  margin: 0;
}
.spec-card dl {
  margin: 8px 0 0;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.spec-card dt {
  text-transform: uppercase;
  color: var(--fg-subtle);
}
.spec-card dd {
  margin: 0;
  color: var(--fg);
}

/* Photo + caption block */
.photo-block {
  background-size: cover;
  background-position: center;
  border-radius: var(--r-sm);
  position: relative;
  overflow: hidden;
}
.photo-block::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(27,32,41,0) 55%, rgba(27,32,41,0.78) 100%);
}
.photo-block .caption {
  position: absolute; left: 24px; right: 24px; bottom: 22px;
  z-index: 2; color: var(--paper-100);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.photo-block .caption b {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--paper-050);
  letter-spacing: 0.18em;
  margin-bottom: 4px;
}

/* Stat cluster */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--paper-000);
  overflow: hidden;
}
.stat {
  padding: 32px 28px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat:last-child { border-right: 0; }
.stat .num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 44px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--fg-strong);
}
.stat .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}
.stat .desc {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.5;
  margin-top: 4px;
}

/* Insight band — slate */
.band-slate {
  background: var(--slate-800);
  color: var(--paper-100);
  padding: 96px 0;
}
.band-slate h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 3.6vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--paper-050);
  margin: 16px 0 0;
  max-width: 18ch;
}
.band-slate p {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.55;
  color: var(--paper-200);
  max-width: 60ch;
  margin: 24px 0 0;
}

/* Quote (case studies) */
.pull-quote {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 2.6vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--fg-strong);
  border-left: 2px solid var(--rust-500);
  padding-left: 28px;
  margin: 0;
}

/* Responsive */
@media (max-width: 1024px) {
  .section-head, .split, .footer-grid, .final-cta .container {
    grid-template-columns: 1fr; gap: 40px;
  }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
}
@media (max-width: 640px) {
  .container, .page-banner-content { padding-left: 20px; padding-right: 20px; }
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-cta { padding: 10px 14px; font-size: 11px; letter-spacing: 0.12em; }
  .nav.is-open .nav-links {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--paper-050);
    border-bottom: 1px solid var(--border);
    padding: 8px 0 16px;
    box-shadow: 0 12px 32px rgba(27,32,41,0.08);
  }
  .nav.is-open .nav-links a {
    padding: 14px 24px;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
  }
  .nav.is-open .nav-links a:last-child { border-bottom: 0; }
  .nav.is-open .nav-links a.active::after { display: none; }
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--border); }
  .section { padding: 72px 0; }
}