/* ── Local Fonts ── */
@font-face { font-family: 'Inter'; font-weight: 300; font-style: normal; font-display: swap; src: url('../fonts/Inter-300.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 400; font-style: normal; font-display: swap; src: url('../fonts/Inter-400.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 500; font-style: normal; font-display: swap; src: url('../fonts/Inter-500.woff2') format('woff2'); }
@font-face { font-family: 'TT Octosquares'; font-weight: 400; font-style: normal; font-display: swap; src: url('../fonts/TTOctosquares-Regular.ttf') format('truetype'); }
@font-face { font-family: 'TT Octosquares'; font-weight: 500; font-style: normal; font-display: swap; src: url('../fonts/TTOctosquares-Medium.ttf') format('truetype'); }
@font-face { font-family: 'TT Octosquares'; font-weight: 700; font-style: normal; font-display: swap; src: url('../fonts/TTOctosquares-Bold.ttf') format('truetype'); }
@font-face { font-family: 'TT Octosquares'; font-weight: 900; font-style: normal; font-display: swap; src: url('../fonts/TTOctosquares-Black.ttf') format('truetype'); }

/* The Halverstone Group — Design System v1
   Tonal direction: cold corporate defense-contractor.
   Reference: Lockheed Martin, BAE Systems, Northrop Grumman, Bechtel. */

:root {
  /* Surfaces — dark dominant */
  --bg:        #0A0A0C;      /* near-black, the base */
  --bg-2:      #121217;      /* card / section alt */
  --bg-3:      #1A1A22;      /* elevated */
  --bg-rule:   #232330;      /* hairline boundary */
  --light:     #EAEAEC;      /* light section bg (rare, used for inverse moments) */
  --light-2:   #D5D5D9;

  /* Ink */
  --ink:       #F5F5F7;      /* primary white */
  --text:      #B4B4BC;      /* body */
  --dim:       #6B6B78;      /* muted */
  --dim-2:     #4A4A55;      /* very muted, labels */

  /* Brand — Halverstone palette */
  --crimson:   #C8102E;      /* primary red, upper half of mark */
  --wine:      #7A0E1E;      /* secondary, lower half of mark */
  --crimson-dim: rgba(200, 16, 46, 0.5);
  --crimson-faint: rgba(200, 16, 46, 0.15);

  /* Typography */
  --display:   'TT Octosquares', 'Inter', sans-serif;
  --body:      'Inter', system-ui, -apple-system, sans-serif;
  --mono:      'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;

  /* Layout */
  --container: 1320px;
  --container-wide: 1480px;
}

/* ── Reset / Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--body);
  font-weight: 400;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--crimson); }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.05;
  color: var(--ink);
  text-transform: uppercase;
}
h1 { font-size: clamp(2.4rem, 5vw, 4.8rem); font-weight: 900; letter-spacing: 0.03em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); font-weight: 900; letter-spacing: 0.03em; }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.5rem); font-weight: 700; letter-spacing: 0.04em; }
h4 { font-size: 1rem; font-weight: 500; letter-spacing: 0.1em; }

p { color: var(--text); font-size: 1rem; line-height: 1.7; max-width: 70ch; }
p + p { margin-top: 1rem; }

strong { color: var(--ink); font-weight: 500; }
em { color: var(--ink); font-style: italic; }

.eyebrow {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.62rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--crimson);
  display: block;
  margin-bottom: 1rem;
}
.eyebrow-mono {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
}

.accent-rule {
  width: 48px;
  height: 2px;
  background: var(--crimson);
  margin: 0 0 1.5rem 0;
  display: block;
}

/* ── Layout ── */
.container { max-width: var(--container); margin: 0 auto; padding: 0 2.5rem; }
.container-wide { max-width: var(--container-wide); margin: 0 auto; padding: 0 2.5rem; }
section { padding: 7rem 0; position: relative; }
section.tight { padding: 4rem 0; }

.section-header { margin-bottom: 4rem; max-width: 72ch; }
.section-header h2 { margin-bottom: 1.5rem; }

/* ── Nav ── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 10, 12, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bg-rule);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2.5rem; height: 72px;
}
.nav-logo { display: flex; align-items: center; gap: 0.85rem; }
.nav-mark { height: 36px; width: auto; }
.nav-wordmark {
  font-family: var(--display);
  font-weight: 900;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-transform: uppercase;
}
.nav-links { list-style: none; display: flex; gap: 0; align-items: center; }
.nav-item { position: relative; }
.nav-item > a {
  display: block;
  padding: 1.5rem 1.25rem;
  font-family: var(--display);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text);
}
.nav-item > a:hover { color: var(--ink); }
.nav-item .dropdown {
  position: absolute; top: 100%; left: 0; min-width: 240px;
  background: var(--bg-2);
  border: 1px solid var(--bg-rule);
  padding: 0.5rem 0;
  opacity: 0; visibility: hidden;
  transform: translateY(-6px);
  transition: all 0.15s;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a {
  display: block;
  padding: 0.7rem 1.25rem;
  font-family: var(--display);
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  border-left: 2px solid transparent;
}
.dropdown a:hover { background: var(--bg-3); color: var(--ink); border-left-color: var(--crimson); }

.nav-cta {
  padding: 0.65rem 1.25rem !important;
  border: 1px solid var(--crimson) !important;
  color: var(--crimson) !important;
  margin-left: 0.75rem;
}
.nav-cta:hover { background: var(--crimson); color: var(--ink) !important; }

.nav-ticker {
  display: inline-flex; align-items: baseline; gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--dim);
  border-left: 1px solid var(--bg-rule);
  padding-left: 1.25rem;
  margin-left: 1rem;
}
.nav-ticker .ticker-sym { color: var(--ink); font-weight: 500; letter-spacing: 0.16em; }
.nav-ticker .ticker-price { color: var(--ink); }
.nav-ticker .ticker-up { color: #4ADE80; }
.nav-ticker .ticker-down { color: var(--crimson); }

.nav-hamburger { display: none; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 1rem 1.75rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
  background: transparent;
}
.btn-primary { background: var(--crimson); color: var(--ink); }
.btn-primary:hover { background: var(--wine); color: var(--ink); }
.btn-outline { border: 1px solid var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--bg); }
.btn-ghost { color: var(--text); padding-left: 0; padding-right: 0; }
.btn-ghost:hover { color: var(--crimson); }
.btn-ghost::after { content: '→'; margin-left: 0.25rem; transition: transform 0.15s; }
.btn-ghost:hover::after { transform: translateX(4px); }

/* ── Hero ── */
.hero {
  min-height: 92vh;
  display: flex; align-items: center;
  background: var(--bg);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--bg-rule);
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(200, 16, 46, 0.15), transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(122, 14, 30, 0.1), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, #050507 100%);
}
.hero-grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.6;
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 880px;
}
.hero-content h1 { margin-bottom: 2rem; }
.hero-sub {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text);
  max-width: 64ch;
  margin-bottom: 3rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-system-strip {
  position: absolute; bottom: 0; left: 0; right: 0;
  border-top: 1px solid var(--bg-rule);
  background: rgba(0, 0, 0, 0.4);
  padding: 1.5rem 0;
}
.hero-system-strip .strip-inner {
  display: flex; justify-content: space-between; align-items: center; gap: 2rem;
  flex-wrap: wrap;
}
.strip-item {
  display: flex; flex-direction: column; gap: 0.2rem;
  font-family: var(--mono);
}
.strip-item .strip-lbl {
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim-2);
}
.strip-item .strip-val {
  font-size: 0.95rem;
  color: var(--ink);
  font-weight: 500;
}
.strip-item .strip-val.crimson { color: var(--crimson); }

/* ── Stat block ── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  background: var(--bg-2);
  border: 1px solid var(--bg-rule);
}
.stat-cell {
  padding: 3rem 2.5rem;
  border-right: 1px solid var(--bg-rule);
  position: relative;
}
.stat-cell:last-child { border-right: none; }
.stat-num {
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(2.4rem, 4vw, 3.5rem);
  color: var(--ink);
  letter-spacing: 0.01em;
  line-height: 1;
}
.stat-lbl {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  margin-top: 0.75rem;
}

/* ── Capability grid (divisions) ── */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--bg-rule);
  border: 1px solid var(--bg-rule);
}
.capability-cell {
  background: var(--bg);
  padding: 2.5rem 2rem;
  position: relative;
  transition: background 0.15s;
  display: flex; flex-direction: column;
  min-height: 280px;
}
.capability-cell:hover { background: var(--bg-2); }
.cap-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--crimson);
  margin-bottom: 1.5rem;
}
.cap-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 0.75rem;
  line-height: 1.15;
}
.cap-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--dim);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}
.cap-link {
  font-family: var(--display);
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text);
  align-self: flex-start;
  border-bottom: 1px solid var(--bg-rule);
  padding-bottom: 0.25rem;
}
.cap-link:hover { color: var(--crimson); border-bottom-color: var(--crimson); }

/* ── Two-col split ── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

/* ── Spec table (capability statement style) ── */
.spec-table {
  border-top: 1px solid var(--bg-rule);
}
.spec-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--bg-rule);
  gap: 2rem;
}
.spec-lbl {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  padding-top: 0.15rem;
}
.spec-val {
  font-size: 0.95rem;
  color: var(--ink);
  line-height: 1.65;
}

/* ── Program card ── */
.program-card {
  background: var(--bg-2);
  border: 1px solid var(--bg-rule);
  padding: 2.5rem;
  display: flex; flex-direction: column;
  position: relative;
}
.program-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 32px; height: 2px;
  background: var(--crimson);
}
.program-card .prog-cat {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--crimson);
  margin-bottom: 1rem;
}
.program-card h3 { margin-bottom: 1rem; font-size: 1.3rem; }
.program-card p { font-size: 0.92rem; color: var(--dim); margin-bottom: 1.5rem; }

/* ── News list ── */
.news-item {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: 3rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--bg-rule);
  align-items: baseline;
}
.news-item .news-date {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--dim);
}
.news-item h3 {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: none;
  font-family: var(--body);
  color: var(--ink);
  line-height: 1.45;
}
.news-item h3 a:hover { color: var(--crimson); }
.news-item .news-cat {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim-2);
}

/* ── Footer ── */
footer {
  background: #050507;
  border-top: 1px solid var(--bg-rule);
  padding: 5rem 0 2rem;
  margin-top: 6rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}
.footer-brand { display: flex; flex-direction: column; gap: 1.5rem; }
.footer-logo-row { display: flex; align-items: center; gap: 0.85rem; }
.footer-mark { height: 32px; width: auto; }
.footer-wordmark {
  font-family: var(--display);
  font-weight: 900;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--ink);
  text-transform: uppercase;
}
.footer-tag {
  font-size: 0.85rem;
  color: var(--dim);
  max-width: 36ch;
}
.footer-col h4 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--ink);
  margin-bottom: 1.5rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.7rem; }
.footer-col a {
  font-size: 0.82rem;
  color: var(--dim);
  font-family: var(--body);
}
.footer-col a:hover { color: var(--crimson); }
.footer-bottom {
  border-top: 1px solid var(--bg-rule);
  padding-top: 2rem;
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: 1.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--dim-2);
}
.footer-bottom .footer-legal { display: flex; gap: 2rem; }
.footer-bottom .footer-legal a { color: var(--dim-2); font-family: var(--mono); }
.footer-bottom .footer-legal a:hover { color: var(--ink); }

/* ── CTA band ── */
.cta-band {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
  border-top: 1px solid var(--crimson-dim);
  border-bottom: 1px solid var(--crimson-dim);
  padding: 6rem 0;
  text-align: center;
}
.cta-band h2 { margin-bottom: 1.25rem; }
.cta-band p { margin: 0 auto 2.5rem; color: var(--text); font-size: 1.05rem; max-width: 56ch; }

/* ── Page hero (subpages) ── */
.page-hero {
  background: var(--bg);
  border-bottom: 1px solid var(--bg-rule);
  padding: 8rem 0 6rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 30%, rgba(200, 16, 46, 0.08), transparent 60%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { margin-bottom: 1.5rem; }
.page-hero p { font-size: 1.15rem; line-height: 1.6; max-width: 64ch; color: var(--text); }

/* ── Mobile ── */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-hamburger {
    display: flex; flex-direction: column; gap: 5px;
    cursor: pointer;
  }
  .nav-hamburger span {
    width: 24px; height: 2px; background: var(--ink); display: block;
  }
  .nav.menu-open .nav-links {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--bg-rule);
    padding: 1rem 0;
  }
  .nav.menu-open .nav-item .dropdown { position: static; opacity: 1; visibility: visible; transform: none; border: none; background: var(--bg-2); }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .stat-cell:nth-child(2) { border-right: none; }
  .stat-cell:nth-child(1), .stat-cell:nth-child(2) { border-bottom: 1px solid var(--bg-rule); }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 3rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 0.5rem; }
  .spec-row { grid-template-columns: 1fr; gap: 0.5rem; }
}
@media (max-width: 640px) {
  .container, .container-wide { padding: 0 1.5rem; }
  .nav { padding: 0 1.5rem; }
  .stat-row { grid-template-columns: 1fr; }
  .stat-cell { border-right: none; border-bottom: 1px solid var(--bg-rule); }
  .stat-cell:last-child { border-bottom: none; }
  .capability-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 4.5rem 0; }
}

/* ── Fade-in animation ── */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }