/* ============================================================
   LandingPageCSS.css
   Nav bar, logo, and hero section.
   The entry point — first thing a visitor sees.
   ============================================================ */

/* ── NAV — height 64px (8×8), padding 0 48px (8×6) ── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 48px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--text);
  text-decoration: none;
}

/* Ring — 32×32 (8×4), concentric circles via box-shadow */
.logo-ring {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 3px solid var(--blue);
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 4.5px var(--blue);
  flex-shrink: 0;
  background: transparent;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 400;
  transition: color 0.18s;
}
.nav-links a:hover { color: var(--text); }

/* ── HERO — top 96px (8×12), bottom 80px (8×10) ── */
.hero {
  text-align: center;
  padding: 96px 16px 80px;
  max-width: 720px;
  margin: 0 auto;
  animation: fadeUp 0.65s ease both;
}

/* Eyebrow pill — height 32px (8×4), H pad 16px (8×2) */
.eyebrow {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 16px;
  background: var(--blue-bg);
  color: var(--blue);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: var(--r-pill);
  margin-bottom: 24px;
}

h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 24px;
}

.hero-body {
  font-size: 15px;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.6;
  max-width: 520px;
  margin: 0 auto 16px;
}

.hero-note {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* ── RESPONSIVE ── */
@media (max-width: 680px) {
  nav { padding: 0 16px; }
  h1  { font-size: 36px; }
}

#navBookDemo {
    color: white;
}