/* ============================================================
   Middlebelt Technologies LLC — shared stylesheet
   Design system: "Operational Readiness"
   ============================================================ */

:root {
  /* Palette */
  --navy-900: #0a1628;   /* deepest base */
  --navy-800: #0f2038;
  --navy-700: #16304f;
  --slate-600: #2a3f5c;
  --slate-400: #64748b;
  --slate-300: #94a3b8;
  --paper: #f4f6f9;
  --paper-warm: #eef1f5;
  --white: #ffffff;
  --signal: #ff6a2b;     /* readiness accent, used sparingly */
  --signal-dim: #c9541f;
  --steel: #3d7dca;      /* secondary cool accent */
  --line: rgba(148, 163, 184, 0.22);
  --line-strong: rgba(148, 163, 184, 0.4);

  /* Type */
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', ui-monospace, monospace;

  --maxw: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: var(--font-body);
  color: var(--navy-900);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- Utility / labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--signal);
  display: inline-block;
}
.eyebrow.on-dark { color: var(--signal); }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.08; letter-spacing: -0.01em; }

/* ============================================================
   Header / nav
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(148,163,184,0.14);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex; align-items: center; gap: 11px;
  text-decoration: none;
}
.brand-mark {
  width: 30px; height: 30px; flex: none;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--white);
  letter-spacing: 0.01em;
  line-height: 1;
}
.brand-name span { color: var(--signal); }
.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  color: var(--slate-300);
  text-transform: uppercase;
  display: block;
  margin-top: 3px;
}
.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav-links a {
  color: var(--slate-300);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.18s;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--white); }
.nav-cta {
  background: var(--signal);
  color: var(--navy-900) !important;
  padding: 9px 18px;
  border-radius: 4px;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  transition: background 0.18s, transform 0.18s;
}
.nav-cta:hover { background: #ff7d45; transform: translateY(-1px); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--white); margin: 4px 0; transition: 0.2s; }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--navy-800);
    border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height 0.28s ease;
  }
  .nav-links.open { max-height: 420px; }
  .nav-links li { border-top: 1px solid rgba(148,163,184,0.1); }
  .nav-links a { display: block; padding: 15px 28px; }
  .nav-cta { margin: 12px 28px; text-align: center; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  color: var(--white);
  overflow: hidden;
  border-bottom: 1px solid rgba(148,163,184,0.12);
}
/* readiness grid signature */
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(148,163,184,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 70% at 70% 20%, #000 0%, transparent 75%);
  pointer-events: none;
}
.hero-coord {
  position: absolute; top: 0; right: 0; bottom: 0; width: 44%;
  pointer-events: none; opacity: 0.5;
}
.hero-inner {
  position: relative; z-index: 2;
  padding: 108px 0 96px;
  max-width: 720px;
}
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.3rem);
  color: var(--white);
  margin: 22px 0 0;
}
.hero h1 .accent { color: var(--signal); }
.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  color: var(--slate-300);
  margin: 24px 0 0;
  max-width: 620px;
  font-weight: 400;
}
.hero-actions { display: flex; gap: 14px; margin-top: 40px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 26px;
  border-radius: 5px;
  font-weight: 600;
  font-size: 0.94rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.16s, background 0.18s, border-color 0.18s;
}
.btn-primary { background: var(--signal); color: var(--navy-900); }
.btn-primary:hover { background: #ff7d45; transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--white); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--white); transform: translateY(-2px); }
.btn-arrow { transition: transform 0.18s; }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* status strip */
.status-strip {
  position: relative; z-index: 2;
  border-top: 1px solid rgba(148,163,184,0.14);
  background: rgba(10,22,40,0.4);
}
.status-strip .wrap {
  display: flex; flex-wrap: wrap; gap: 8px 40px;
  padding: 18px 28px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--slate-300);
}
.status-strip b { color: var(--white); font-weight: 500; }
.status-dot { color: var(--signal); }

/* ============================================================
   Sections
   ============================================================ */
section { padding: 88px 0; }
.section-head { max-width: 640px; margin-bottom: 52px; }
.section-head h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.7rem);
  margin-top: 16px;
}
.section-head p { color: var(--slate-600); margin-top: 16px; font-size: 1.05rem; }
.section-dark { background: var(--navy-900); color: var(--white); }
.section-dark .section-head p { color: var(--slate-300); }
.section-alt { background: var(--paper-warm); }

/* ---------- Pillars grid ---------- */
.pillars { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
@media (max-width: 720px) { .pillars { grid-template-columns: 1fr; } }
.pillar {
  background: var(--white);
  padding: 34px 30px;
  transition: background 0.2s;
  position: relative;
}
.pillar:hover { background: var(--paper); }
.pillar-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--signal);
  letter-spacing: 0.1em;
}
.pillar h3 { font-size: 1.3rem; margin: 14px 0 10px; }
.pillar p { color: var(--slate-600); font-size: 0.96rem; }
.pillar ul { list-style: none; margin-top: 14px; }
.pillar li {
  font-size: 0.88rem; color: var(--slate-600);
  padding-left: 18px; position: relative; margin-top: 6px;
}
.pillar li::before {
  content: "▸"; position: absolute; left: 0; color: var(--signal); font-size: 0.8rem;
}

/* ---------- Differentiators / feature rows ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
@media (max-width: 820px) { .features { grid-template-columns: 1fr; } }
.feature {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}
.section-dark .feature { background: var(--navy-800); border-color: rgba(148,163,184,0.16); }
.feature-ico {
  width: 42px; height: 42px; border-radius: 6px;
  background: rgba(255,106,43,0.12);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feature h3 { font-size: 1.14rem; margin-bottom: 8px; }
.section-dark .feature h3 { color: var(--white); }
.feature p { font-size: 0.92rem; color: var(--slate-600); }
.section-dark .feature p { color: var(--slate-300); }

/* ---------- Vehicles table ---------- */
.vehicle-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.vehicle {
  display: grid; grid-template-columns: 190px 1fr auto; gap: 24px; align-items: center;
  background: var(--white); padding: 22px 26px;
}
@media (max-width: 720px) { .vehicle { grid-template-columns: 1fr; gap: 8px; } }
.vehicle-name { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.vehicle-desc { color: var(--slate-600); font-size: 0.92rem; }
.vehicle-status {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 5px 11px; border-radius: 20px; white-space: nowrap;
}
.st-target { background: rgba(61,125,202,0.14); color: var(--steel); }
.st-progress { background: rgba(255,106,43,0.14); color: var(--signal-dim); }

/* ---------- Stat band ---------- */
.stat-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: left; }
@media (max-width: 720px) { .stat-band { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; } }
.stat-num { font-family: var(--font-display); font-size: 2.4rem; font-weight: 600; color: var(--white); }
.stat-num .u { color: var(--signal); }
.stat-lbl { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--slate-300); text-transform: uppercase; margin-top: 6px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(140deg, var(--navy-800), var(--navy-700));
  border-radius: 12px;
  padding: 56px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  flex-wrap: wrap;
  border: 1px solid rgba(148,163,184,0.16);
}
.cta-band h2 { color: var(--white); font-size: 1.9rem; max-width: 560px; }
.cta-band p { color: var(--slate-300); margin-top: 10px; max-width: 520px; }

/* ============================================================
   Page hero (interior)
   ============================================================ */
.page-hero {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-800));
  color: var(--white); padding: 76px 0 62px;
  border-bottom: 1px solid rgba(148,163,184,0.12);
  position: relative; overflow: hidden;
}
.page-hero .hero-grid { mask-image: radial-gradient(ellipse 70% 90% at 85% 30%, #000, transparent 72%); }
.page-hero-inner { position: relative; z-index: 2; max-width: 720px; }
.page-hero h1 { font-size: clamp(2.1rem, 4.5vw, 3.2rem); margin: 18px 0 0; color: var(--white); }
.page-hero p { color: var(--slate-300); margin-top: 18px; font-size: 1.1rem; max-width: 600px; }

/* ============================================================
   About
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: start; }
@media (max-width: 820px) { .about-grid { grid-template-columns: 1fr; gap: 34px; } }
.prose p { color: var(--slate-600); margin-bottom: 18px; font-size: 1.02rem; }
.prose p strong { color: var(--navy-900); }
.founder-card {
  border: 1px solid var(--line); border-radius: 10px; padding: 30px;
  background: var(--white); position: sticky; top: 92px;
}
.founder-card .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.mini-badge {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 5px 10px; border-radius: 4px; background: var(--navy-900); color: var(--white);
}
.founder-card h3 { font-size: 1.2rem; margin-bottom: 4px; }
.founder-role { font-family: var(--font-mono); font-size: 0.78rem; color: var(--signal-dim); letter-spacing: 0.06em; margin-bottom: 16px; }
.founder-card p { font-size: 0.92rem; color: var(--slate-600); }
.founder-card ul li::before { content: "▸"; position: absolute; left: 0; color: var(--signal); font-size: 0.8rem; }
.founder-card ul li { list-style: none; }

.values { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 8px; }
@media (max-width: 620px) { .values { grid-template-columns: 1fr; } }
.value { padding: 24px; border-left: 2px solid var(--signal); background: var(--white); border-radius: 0 8px 8px 0; box-shadow: 0 1px 0 var(--line); }
.value h3 { font-size: 1.08rem; margin-bottom: 8px; }
.value p { color: var(--slate-600); font-size: 0.92rem; }

/* ============================================================
   Contact
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: start; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; gap: 36px; } }
.contact-info .info-block { margin-bottom: 26px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.contact-info .info-block:last-child { border-bottom: 0; }
.info-label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--signal-dim); margin-bottom: 8px; }
.info-value { font-size: 1.05rem; color: var(--navy-900); }
.info-value a { color: var(--steel); text-decoration: none; }
.info-value a:hover { text-decoration: underline; }
.info-note { font-size: 0.82rem; color: var(--slate-400); margin-top: 5px; }

.form-card { background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: 32px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.82rem; font-weight: 600; margin-bottom: 7px; color: var(--navy-800); }
.field label .req { color: var(--signal); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; font-family: var(--font-body); font-size: 0.94rem;
  border: 1px solid var(--line-strong); border-radius: 6px; background: var(--paper);
  color: var(--navy-900); transition: border-color 0.16s, box-shadow 0.16s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--signal); box-shadow: 0 0 0 3px rgba(255,106,43,0.14); background: var(--white);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.8rem; color: var(--slate-400); margin-top: 14px; }
.form-msg { display: none; padding: 14px 16px; border-radius: 6px; margin-top: 16px; font-size: 0.9rem; }
.form-msg.show { display: block; }
.form-msg.ok { background: rgba(61,125,202,0.12); color: var(--steel); border: 1px solid rgba(61,125,202,0.3); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--navy-900); color: var(--slate-300); padding: 60px 0 30px; border-top: 1px solid rgba(148,163,184,0.12); }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(148,163,184,0.12); }
@media (max-width: 720px) { .footer-top { grid-template-columns: 1fr; gap: 28px; } }
.footer-brand .brand-name { color: var(--white); }
.footer-brand p { font-size: 0.9rem; margin-top: 14px; max-width: 320px; color: var(--slate-400); }
.footer-col h4 { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--slate-300); margin-bottom: 16px; }
.footer-col a { display: block; color: var(--slate-400); text-decoration: none; font-size: 0.9rem; margin-bottom: 10px; transition: color 0.16s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 26px; font-size: 0.8rem; color: var(--slate-400); }
.footer-bottom .mono { font-family: var(--font-mono); letter-spacing: 0.04em; }
.footer-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.footer-badge { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 10px; border: 1px solid rgba(148,163,184,0.24); border-radius: 4px; color: var(--slate-300); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }