/* =============================
   NAVIGATION — sticky header partagé
============================= */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(13, 13, 13, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.nav-brand {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 1;
  min-width: 0;
  transition: color 0.2s;
}

.nav-brand:hover {
  color: var(--text);
}

.nav-links {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.5rem 0.9rem;
  white-space: nowrap;
  transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
}

.nav-cta {
  background: var(--accent);
  color: #fff !important;
  padding: 0.45rem 1rem;
  margin-left: 0.3rem;
  transition: background 0.2s;
}

.nav-cta:hover {
  background: var(--accent-soft);
}

@media (max-width: 640px) {
  .nav-brand {
    font-size: 0.78rem;
    max-width: 110px;
  }

  .nav-link {
    font-size: 0.65rem;
    padding: 0.5rem 0.55rem;
    letter-spacing: 0.06em;
  }

  .nav-cta {
    padding: 0.45rem 0.75rem;
  }
}
