/* ==========================================================================
   VoiceReach AI — Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-default);
  height: var(--nav-height);
}

.nav.scrolled {
  border-bottom-color: var(--color-gray-200);
  box-shadow: var(--shadow-nav);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.nav-logo img {
  height: 36px;
  width: auto;
}

.nav-logo-text {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

.nav-logo-text .logo-accent {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
  background: var(--color-primary);
  color: var(--color-white);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: var(--text-base);
  margin-left: 3px;
}

/* Center Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-navy);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

/* Right Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-signin {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}

.nav-signin:hover {
  color: var(--color-navy);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: all var(--transition-default);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile */
@media (max-width: 1024px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-white);
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-md);
    gap: var(--space-md);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: var(--space-sm) 0;
    font-size: var(--text-base);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-signin {
    display: none;
  }
}

@media (max-width: 480px) {
  .nav-logo-text {
    font-size: var(--text-lg);
  }

  .btn-nav {
    padding: 0.4rem 1rem;
    font-size: var(--text-xs);
  }
}