/* Navigation Component */
.header {
  background-color: white;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: transform var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header.hidden {
  transform: translateY(-100%);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: 40px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  transition: opacity var(--transition-normal);
}

.logo img:hover {
  opacity: 0.8;
}

/* Responsive logo sizing */
@media (max-width: 480px) {
  .logo img {
    height: 32px;
    max-width: 140px;
  }
}

/* Desktop Navigation */
.nav-menu {
  display: none;
  gap: var(--space-xs);
  align-items: center;
}

@media (min-width: 768px) {
  .nav-menu {
    display: flex;
  }
}

/* Pill-style nav links (reference look) */
.nav-link {
  font-weight: 500;
  color: var(--text);
  transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
  padding: 0.8rem 1.8rem;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
}

.nav-link:hover,
.nav-link.active {
  color: var(--secondary);
  border-color: rgba(var(--primary-rgb), 0.35);
  background-color: var(--mint-surface);
}

/* Focus styles for keyboard navigation */
.nav-link:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 4px;
  border-radius: 2px;
}

.mobile-nav-link:focus-visible {
  background-color: var(--primary-light);
  outline: 2px solid var(--primary);
  outline-offset: -2px;
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  cursor: pointer;
  background: var(--mint-surface);
  border: 1px solid rgba(var(--primary-rgb), 0.25);
  border-radius: 50%;
  position: fixed;
  top: 16px;
  right: 20px;
  z-index: 1002;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
    position: relative;
    top: auto;
    right: auto;
  }
}

.hamburger,
.hamburger::before,
.hamburger::after {
  width: 24px;
  height: 2px;
  background-color: var(--text-dark);
  transition: all var(--transition-normal);
}

.hamburger {
  position: relative;
  display: block;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

/* Mobile Menu Active State */
.mobile-menu-btn[aria-expanded="true"] .hamburger {
  background-color: transparent;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: white;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  padding: 8rem var(--container-padding) var(--space-2xl);
  overflow-y: auto;
  overflow-x: hidden;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-nav-menu {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.mobile-nav-link {
  font-size: 2.4rem;
  font-weight: 500;
  color: var(--text-dark);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  transition: color var(--transition-fast);
}

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

.mobile-menu-footer {
  margin-top: auto;
  text-align: center;
  color: var(--text-light);
}

/* CTA Button in Navigation */
.nav-cta {
  margin-left: var(--space-md);
}

@media (max-width: 767px) {
  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-lg);
  }
  
  .nav-cta .btn {
    width: 100%;
  }
}

/* Prevent scroll when mobile menu is open */
body.menu-open {
  overflow: hidden;
}