/* ==========================================================================
   Navigation — sticky top bar.
   ========================================================================== */

.wfs-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--c-line);
}
.wfs-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-7);
  height: 72px;
  padding-inline: clamp(20px, 4vw, 40px);
  max-width: var(--container-wide);
  margin-inline: auto;
}

.wfs-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--c-brand);
}
.wfs-brand:hover { color: var(--c-brand); text-decoration: none; }
.wfs-brand__mark {
  width: 38px; height: 38px;
  color: var(--c-accent);
  flex: 0 0 38px;
}
.wfs-brand__wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.wfs-brand__name {
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  color: var(--c-brand);
}
.wfs-brand__tagline {
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--wfs-ink-300);
  margin-top: 4px;
}

.wfs-nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.wfs-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  font-size: var(--fs-15);
  font-weight: var(--fw-medium);
  color: var(--c-fg);
  text-decoration: none;
  border-radius: var(--r-2);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.wfs-nav__link:hover { background: var(--wfs-cream-50); color: var(--c-brand); text-decoration: none; }
.wfs-nav__link[aria-current="page"] {
  color: var(--c-brand);
  background: var(--wfs-cream-100);
}

.wfs-nav__cta { display: flex; align-items: center; gap: 12px; }

.wfs-nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--r-2);
  padding: 8px;
  cursor: pointer;
}
.wfs-nav__toggle svg { width: 20px; height: 20px; color: var(--c-fg); display: block; }

@media (max-width: 960px) {
  .wfs-nav__links, .wfs-nav__cta .btn-wfs--ghost { display: none; }
  .wfs-nav__toggle { display: inline-flex; }
}