/* Vanguard B2G Systems LLC — corporate site
   Single shared stylesheet, matches the SignalPulse site convention (no build step). */

:root {
  --navy: #0F172A;
  --navy-surface: #1E293B;
  --cyan: #0EA5E9;
  --emerald: #10B981;
  --slate: #F8FAFC;
  --surface: #FFFFFF;
  --border: #E2E8F0;
  --muted: #475569;
  --muted-light: #94A3B8;
  --divider-dark: #334155;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--navy);
  background: var(--slate);
}

a { color: var(--cyan); text-decoration: none; }
a:hover { color: #0369A1; text-decoration: underline; }

img { max-width: 100%; display: block; }

.serif { font-family: 'Source Serif 4', serif; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
}
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-surface); color: #fff; text-decoration: none; }
.btn-outline { border: 1px solid #fff; color: #fff; background: transparent; }
.btn-outline:hover { background: rgba(255,255,255,0.08); color: #fff; text-decoration: none; }
.btn-accent { background: var(--cyan); color: var(--navy); }
.btn-accent:hover { background: #38BDF8; color: var(--navy); text-decoration: none; }

/* Nav */
.navbar { background: var(--surface); border-bottom: 1px solid var(--border); }
.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 64px;
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.logo-flex { display: flex; align-items: center; gap: 14px; }
.logo-mark { flex: 0 0 auto; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: 'Source Serif 4', serif; font-weight: 700; font-size: 19px; color: var(--navy); }
.brand-tagline { font-weight: 600; font-size: 10px; letter-spacing: .14em; color: var(--muted); }
.nav-links { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.nav-link { font-size: 14px; font-weight: 600; color: var(--navy); }
.nav-link:hover { color: var(--navy); text-decoration: underline; }

/* Hero */
.hero {
  padding: 76px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 64px;
  max-width: 1280px;
  margin: 0 auto;
}
.hero-copy { max-width: 660px; display: flex; flex-direction: column; gap: 22px; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .14em; color: var(--cyan); }
.hero h1 { margin: 0; font-weight: 700; font-size: 50px; line-height: 1.15; color: var(--navy); }
.hero .lede { margin: 0; font-size: 18px; line-height: 1.6; color: var(--muted); }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 6px; flex-wrap: wrap; }
.hero-trust { margin: 8px 0 0; font-size: 13px; font-style: italic; color: var(--muted); }

.hero-card {
  width: 420px;
  flex: 0 0 420px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}
.hero-card-stat { font-weight: 700; font-size: 64px; color: var(--cyan); line-height: 1; margin-top: 6px; }
.hero-card-label { font-size: 16px; font-weight: 600; color: var(--navy); }
.hero-card-divider { width: 48px; height: 2px; background: var(--border); margin: 8px 0; }
.hero-card-sub { font-size: 14px; color: var(--muted); }

/* Stat strip */
.stat-strip {
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 40px 64px;
  flex-wrap: wrap;
  gap: 24px;
}
.stat { text-align: center; }
.stat-number { font-weight: 700; font-size: 30px; color: var(--cyan); }
.stat-label { font-size: 12.5px; letter-spacing: .08em; color: var(--muted-light); margin-top: 6px; }
.stat-divider { width: 1px; height: 52px; background: var(--divider-dark); }

/* About */
.about { padding: 80px 64px; display: flex; justify-content: center; }
.about-inner { max-width: 820px; display: flex; flex-direction: column; gap: 20px; text-align: center; }
.about h2 { margin: 0; font-weight: 700; font-size: 36px; color: var(--navy); }
.pull-quote { margin: 12px 0 0; font-style: italic; font-size: 22px; line-height: 1.55; color: var(--navy-surface); }
.about-copy { margin: 12px 0 0; font-size: 16.5px; line-height: 1.7; color: var(--muted); }

/* Pillars */
.pillars { padding: 70px 64px; background: var(--surface); display: flex; flex-direction: column; gap: 36px; align-items: center; }
.pillars h2 { margin: 0; font-weight: 700; font-size: 32px; color: var(--navy); text-align: center; }
.pillars-grid { display: flex; gap: 32px; width: 100%; max-width: 1200px; flex-wrap: wrap; }
.pillar-card { flex: 1 1 320px; padding: 40px; display: flex; flex-direction: column; gap: 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.pillar-card h3 { margin: 0; font-weight: 700; font-size: 22px; color: var(--navy); }
.pillar-card p { margin: 0; font-size: 15.5px; line-height: 1.65; color: var(--muted); }
.pillar-link { font-size: 14.5px; font-weight: 600; }
.signalpulse-logo { width: 80px; height: auto; }

/* Capabilities */
.capabilities { background: #F1F5F9; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; padding: 60px 64px; text-align: center; }
.capabilities h2 { margin: 0; font-weight: 700; font-size: 26px; color: var(--navy); }
.capabilities p { margin: 0; max-width: 640px; font-size: 15.5px; line-height: 1.6; color: var(--muted); }

/* CTA banner */
.cta-banner { background: var(--navy); color: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; text-align: center; padding: 60px 64px; }
.cta-banner h2 { margin: 0; font-weight: 700; font-size: 28px; }
.cta-banner p { margin: 0; font-size: 15.5px; color: #CBD5E1; }
.cta-actions { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; }

/* Footer */
.site-footer { background: var(--navy-surface); color: var(--muted-light); padding: 40px 64px; }
.footer-inner { max-width: 1280px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand-name { font-family: 'Source Serif 4', serif; font-weight: 700; font-size: 16px; color: #fff; }
.footer-nav { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-nav a { font-size: 13.5px; color: #CBD5E1; }
.footer-copy { margin: 0; font-size: 12.5px; color: #64748B; }

/* Responsive */
@media (max-width: 900px) {
  .navbar-inner, .hero, .stat-strip, .about, .pillars, .capabilities, .cta-banner, .site-footer {
    padding-left: 24px;
    padding-right: 24px;
  }
  .hero { flex-direction: column; align-items: stretch; }
  .hero-card { width: 100%; flex: 1 1 auto; }
  .pillars-grid { flex-direction: column; }
  .stat-strip { flex-direction: column; }
  .stat-divider { width: 80%; height: 1px; }
  .hero h1 { font-size: 36px; }
}