/* ============================================
   WICFLOW — Navigation
   ============================================ */

/* ---- Header shell ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-primary);
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.25s var(--ease-out),
    box-shadow 0.25s var(--ease-out);
}

.nav.scrolled {
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
}

/* ---- Inner row ---- */
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

/* ---- Logo ---- */
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  font-style: italic;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.04em;
  line-height: 1;
  flex-shrink: 0;
  position: relative;
}

.nav__logo::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--text-primary);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.nav__logo:hover::after {
  opacity: 0.3;
}

.nav__logo:hover {
  opacity: 1;
}

/* ---- Center links ---- */
.nav__links {
  display: flex;
  align-items: center;
  gap: 2.75rem;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav__link {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  opacity: 0.7;
  letter-spacing: 0.01em;
  transition: opacity var(--transition-fast);
}

.nav__link:hover {
  opacity: 1;
}

/* ---- CTA button ---- */
.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.5rem;
  background: var(--text-primary);
  color: var(--bg-primary);
  border-radius: 2rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.01em;
  flex-shrink: 0;
  transition:
    background var(--transition-fast),
    transform var(--transition-fast);
}

.nav__cta-arrow {
  display: inline-block;
  transition: transform 0.2s var(--ease-out);
  font-size: 0.85em;
}

.nav__cta:hover {
  background: #2a2a2c;
  transform: translateY(-1px);
}

.nav__cta:hover .nav__cta-arrow {
  transform: translateX(3px);
}

/* ---- Hamburger (hidden on desktop) ---- */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.nav__hamburger-line {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.2s var(--ease-out), opacity 0.2s ease;
}

/* ---- Mobile overlay ---- */
.nav__overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg-primary);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out);
}

.nav__overlay--open {
  opacity: 1;
  pointer-events: all;
}

.nav__overlay-close {
  position: absolute;
  top: 1.25rem;
  right: var(--container-padding);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-primary);
  cursor: pointer;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.nav__overlay-close:hover {
  opacity: 1;
}

.nav__overlay-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.nav__overlay-link {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
  opacity: 0.85;
  transition: opacity var(--transition-fast);
}

.nav__overlay-link:hover {
  opacity: 1;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 767px) {
  /* Hide center links and CTA */
  .nav__links,
  .nav__cta {
    display: none;
  }

  /* Show hamburger */
  .nav__hamburger {
    display: flex;
  }
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  .nav,
  .nav__logo,
  .nav__link,
  .nav__cta,
  .nav__overlay,
  .nav__overlay-link,
  .nav__overlay-close {
    transition: none;
  }
}