/* Black Dart Systems — Main Stylesheet */

:root {
  --black:        #0A0A0B;
  --black-soft:   #111113;
  --gunmetal:     #3D4045;
  --gunmetal-light:#1C1D1F;
  --titanium:     #8B9099;
  --silver:       #C7CBD1;
  --offwhite:     #F4F4F2;
  --red:          #B5482E;
  --line:         rgba(199,203,209,0.14);
  --line-strong:  rgba(199,203,209,0.28);
}

/* ── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html  { scroll-behavior:smooth; }
body  {
  background: var(--black);
  color: var(--offwhite);
  font-family: 'Inter', -apple-system, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: 'JetBrains Mono', monospace; }
a     { color:inherit; text-decoration:none; }
img, svg { display:block; }

::selection { background:var(--red); color:var(--offwhite); }
*:focus-visible { outline:1.5px solid var(--silver); outline-offset:3px; }

/* ── Layout ─────────────────────────────────────────────────────────────── */
.wrap { max-width:1180px; margin:0 auto; padding:0 32px; }

/* ── Navigation ─────────────────────────────────────────────────────────── */
.nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(10,10,11,0.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner {
  max-width:1180px; margin:0 auto; padding:0 32px;
  height:72px; display:flex; align-items:center; justify-content:space-between;
}
.nav-brand { display:flex; align-items:center; gap:12px; }
.nav-brand a { display:flex; align-items:center; gap:12px; }
.nav-brand svg { width:22px; height:23px; }
.nav-brand span {
  font-weight:700; font-size:14px; letter-spacing:0.12em; text-transform:uppercase;
}
.nav-links { display:flex; gap:40px; align-items:center; }
.nav-links a {
  font-size:13px; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--titanium); transition:color 0.2s;
}
.nav-links a:hover { color:var(--offwhite); }

/* WordPress menu resets */
.nav-links ul { list-style:none; display:flex; gap:40px; align-items:center; margin:0; padding:0; }
.nav-links ul li { margin:0; }
.nav-links ul li a {
  font-size:13px; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--titanium); transition:color 0.2s;
}
.nav-links ul li a:hover { color:var(--offwhite); }

.nav-cta {
  border:1px solid var(--line-strong);
  padding:10px 20px; font-size:12px; letter-spacing:0.1em; text-transform:uppercase;
  transition:all 0.2s; font-weight:500;
}
.nav-cta:hover { border-color:var(--silver); background:rgba(199,203,209,0.06); }

.nav-toggle {
  display:none; background:none; border:none; cursor:pointer;
  flex-direction:column; gap:5px; padding:4px;
}
.nav-toggle span {
  display:block; width:22px; height:1.5px; background:var(--offwhite); transition:all 0.2s;
}

/* Mobile nav open state */
.nav-open .nav-links { display:flex; flex-direction:column; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn-primary {
  background:var(--offwhite); color:var(--black);
  padding:15px 28px; font-size:13px; font-weight:600;
  letter-spacing:0.06em; text-transform:uppercase;
  transition:all 0.2s; border:1px solid var(--offwhite); display:inline-block;
}
.btn-primary:hover { background:transparent; color:var(--offwhite); }
.btn-secondary {
  padding:15px 28px; font-size:13px; font-weight:500;
  letter-spacing:0.06em; text-transform:uppercase;
  border:1px solid var(--line-strong); transition:all 0.2s; display:inline-block;
}
.btn-secondary:hover { border-color:var(--silver); }

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero {
  position:relative; min-height:100vh;
  display:flex; align-items:center;
  overflow:hidden; padding-top:72px;
}
.hero-scanline {
  position:absolute; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, rgba(199,203,209,0.35), transparent);
  animation:scan 9s linear infinite;
}
@keyframes scan {
  0%   { top:8%;  }
  50%  { top:88%; }
  100% { top:8%;  }
}
.hero-grid {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(199,203,209,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(199,203,209,0.05) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 60% 50% at 50% 40%, black 0%, transparent 75%);
}
.hero-inner {
  position:relative; z-index:2; width:100%;
  display:grid; grid-template-columns:1.1fr 0.9fr; gap:48px; align-items:center;
}
.hero-eyebrow {
  display:flex; align-items:center; gap:10px;
  font-family:'JetBrains Mono',monospace;
  font-size:12px; letter-spacing:0.1em; color:var(--titanium);
  margin-bottom:28px; text-transform:uppercase;
}
.hero-eyebrow .dot {
  width:6px; height:6px; border-radius:50%; background:var(--red); flex-shrink:0;
}
.hero h1 {
  font-size:clamp(40px,6vw,72px); font-weight:800;
  letter-spacing:-0.02em; line-height:1.02; margin-bottom:24px;
}
.hero h1 em { font-style:normal; color:var(--titanium); }
.hero > .wrap > div > p,
.hero p {
  font-size:18px; color:var(--titanium);
  max-width:480px; line-height:1.65; margin-bottom:36px;
}
.hero-actions { display:flex; gap:16px; align-items:center; flex-wrap:wrap; }

.hero-mark {
  position:relative;
  display:flex; align-items:center; justify-content:center;
  aspect-ratio:1;
}
.bearing-ring {
  position:absolute; inset:0; border-radius:50%; border:1px solid var(--line);
}
.bearing-ring.inner { inset:13%; border-color:var(--line-strong); }
.hero-dart  { width:23%; height:24%; position:relative; z-index:2; }
.bearing-label {
  position:absolute; font-family:'JetBrains Mono',monospace;
  font-size:11px; color:var(--titanium); letter-spacing:0.05em;
}
.bl-n { top:2%;    left:50%;  transform:translateX(-50%); }
.bl-e { right:2%;  top:50%;   transform:translateY(-50%); }
.bl-s { bottom:2%; left:50%;  transform:translateX(-50%); }
.bl-w { left:2%;   top:50%;   transform:translateY(-50%); }

@media (prefers-reduced-motion: reduce) {
  .hero-scanline { animation:none; top:8%; }
}

/* ── Sections shared ─────────────────────────────────────────────────────── */
section { padding:120px 0; border-bottom:1px solid var(--line); }
.section-tag {
  font-family:'JetBrains Mono',monospace;
  font-size:12px; color:var(--red); letter-spacing:0.1em;
  margin-bottom:18px; text-transform:uppercase; display:block;
}
.section-head {
  display:flex; justify-content:space-between; align-items:flex-end;
  gap:32px; margin-bottom:64px; flex-wrap:wrap;
}
.section-head h2 {
  font-size:clamp(28px,4vw,42px); font-weight:700;
  letter-spacing:-0.01em; max-width:560px;
}
.section-head p { color:var(--titanium); max-width:380px; font-size:15px; line-height:1.65; }

/* ── Product cards ───────────────────────────────────────────────────────── */
.programs {
  display:grid; grid-template-columns:repeat(3,1fr);
  gap:1px; background:var(--line); border:1px solid var(--line);
}
.program { background:var(--black); padding:40px 32px; transition:background 0.25s; }
.program:hover { background:var(--black-soft); }
.program-bearing {
  font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--titanium);
  letter-spacing:0.05em; margin-bottom:24px; display:block;
}
.program h3 { font-size:21px; font-weight:600; margin-bottom:14px; letter-spacing:-0.01em; }
.program p  { color:var(--titanium); font-size:14.5px; line-height:1.65; margin-bottom:24px; }
.program-spec {
  display:flex; justify-content:space-between;
  font-family:'JetBrains Mono',monospace; font-size:12px;
  padding-top:18px; border-top:1px solid var(--line); color:var(--titanium);
}
.program-spec b { color:var(--offwhite); font-weight:500; }

/* ── Capability strip ────────────────────────────────────────────────────── */
.specs { background:var(--black-soft); }
.specs-row { display:grid; grid-template-columns:repeat(4,1fr); }
.spec { padding:80px 32px; border-right:1px solid var(--line); }
.spec:last-child { border-right:none; }
.spec .num {
  font-family:'JetBrains Mono',monospace;
  font-size:clamp(32px,4vw,48px); font-weight:500;
  color:var(--offwhite); letter-spacing:-0.01em;
}
.spec .num span { color:var(--red); }
.spec .label {
  font-size:12px; color:var(--titanium); letter-spacing:0.08em; text-transform:uppercase; margin-top:8px;
}

/* ── About / Principles ──────────────────────────────────────────────────── */
.about-grid { display:grid; grid-template-columns:0.85fr 1.15fr; gap:80px; }
.about-left h2 {
  font-size:clamp(28px,4vw,40px); font-weight:700;
  letter-spacing:-0.01em; line-height:1.15; margin-bottom:24px;
}
.about-left p { color:var(--titanium); font-size:15.5px; line-height:1.7; }
.sdvosb-badge {
  display:inline-flex; align-items:center; gap:10px;
  margin-top:28px; padding:10px 18px;
  border:1px solid var(--line-strong);
  font-size:12px; letter-spacing:0.04em; color:var(--silver);
}
.sdvosb-dot { width:6px; height:6px; border-radius:50%; background:var(--red); flex-shrink:0; }
.principles { display:flex; flex-direction:column; }
.principle {
  display:grid; grid-template-columns:100px 1fr; gap:24px;
  padding:28px 0; border-top:1px solid var(--line);
}
.principle:first-child { border-top:none; }
.principle-bearing { font-family:'JetBrains Mono',monospace; font-size:13px; color:var(--red); padding-top:2px; }
.principle h4 { font-size:17px; font-weight:600; margin-bottom:8px; }
.principle p  { color:var(--titanium); font-size:14.5px; line-height:1.65; }

/* ── Contact ─────────────────────────────────────────────────────────────── */
.contact { display:grid; grid-template-columns:1.2fr 1fr; gap:64px; }
.contact-left h2 {
  font-size:clamp(32px,5vw,52px); font-weight:700;
  letter-spacing:-0.015em; line-height:1.05; margin-bottom:24px;
}
.contact-left p { color:var(--titanium); font-size:16px; max-width:420px; line-height:1.65; margin-bottom:32px; }
.coord-block {
  font-family:'JetBrains Mono',monospace; font-size:13px; color:var(--titanium);
  border:1px solid var(--line); padding:28px;
}
.coord-block .row {
  display:flex; justify-content:space-between;
  padding:8px 0; border-bottom:1px solid var(--line);
}
.coord-block .row:last-child { border-bottom:none; }
.coord-block .row b { color:var(--offwhite); font-weight:500; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
footer { padding:40px 0; }
.footer-row {
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px;
}
.footer-row .nav-brand span { font-size:12px; }
.footer-row .nav-brand a { display:flex; align-items:center; gap:12px; }
.footer-links { display:flex; gap:28px; }
.footer-links a { font-size:12px; color:var(--titanium); letter-spacing:0.05em; }
.footer-links a:hover { color:var(--offwhite); }

/* WordPress footer menu resets */
.footer-links ul { list-style:none; display:flex; gap:28px; margin:0; padding:0; }
.footer-links ul li { margin:0; }
.footer-links ul li a { font-size:12px; color:var(--titanium); letter-spacing:0.05em; }
.footer-links ul li a:hover { color:var(--offwhite); }

.footer-legal { font-size:12px; color:var(--titanium); font-family:'JetBrains Mono',monospace; }

/* ── WordPress admin bar offset ─────────────────────────────────────────── */
.admin-bar .nav { top:32px; }
@media (max-width:782px) { .admin-bar .nav { top:46px; } }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width:920px) {
  .nav-links   { display:none; position:absolute; top:72px; left:0; right:0;
                 background:var(--black); padding:20px 32px; border-bottom:1px solid var(--line);
                 flex-direction:column; align-items:flex-start; gap:20px; }
  .nav-links.open { display:flex; }
  .nav-toggle  { display:flex; }
  .hero-inner  { grid-template-columns:1fr; }
  .hero-mark   { order:-1; max-width:280px; margin:0 auto 16px; }
  .programs    { grid-template-columns:1fr; }
  .specs-row   { grid-template-columns:repeat(2,1fr); }
  .spec        { border-right:none; border-bottom:1px solid var(--line); padding:24px 32px; }
  .about-grid  { grid-template-columns:1fr; gap:48px; }
  .contact     { grid-template-columns:1fr; gap:40px; }
  .principle   { grid-template-columns:70px 1fr; }
}
@media (max-width:560px) {
  .wrap, .nav-inner { padding:0 20px; }
  section { padding:80px 0; }
  .hero p { font-size:16px; }
}