/* ═══════════════════
   NAV — Navigation fixe
   ═══════════════════ */

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  background: rgba(6,24,46,0.6);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--line);
  transition: background var(--t-base);
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 1px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.04em;
  color: var(--text);
  text-decoration: none;
  text-transform: lowercase;
  line-height: 1;
}

.logo-i {
  position: relative;
  display: inline-block;
}

.logo-i::before {
  content: '★';
  position: absolute;
  top: -0.42em;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.5em;
  color: var(--gold);
  line-height: 1;
  font-weight: 400;
}

.logo .logo-plus {
  color: var(--gold);
  font-weight: 800;
  margin-left: 1px;
  line-height: 1;
}

/* Liens nav */
.nav-links {
  display: flex;
  gap: 40px;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  transition: color var(--t-base);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 100%;
  height: 1px;
  background: var(--gold);
  transform-origin: center;
  transition: transform 0.35s ease;
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: translateX(-50%) scaleX(1); }

/* CTA nav */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--navy);
  background: var(--gold);
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  transition: background var(--t-base), transform var(--t-fast), box-shadow var(--t-base);
}

.nav-cta:hover {
  background: var(--gold-soft);
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold);
}

.nav-cta::after {
  content: '→';
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
}