/**
 * Public Navigation Component
 * Based on Studio Cosmic North Design System
 */

.public-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--text-h4);
  font-weight: var(--font-bold);
  background: linear-gradient(135deg, var(--purple-600) 0%, var(--indigo-500) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  transition: var(--transition-opacity);
}

.nav-logo:hover {
  opacity: 0.8;
}

.nav-menu {
  display: flex;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: var(--font-medium);
  transition: color var(--duration-base);
  position: relative;
  padding: var(--space-2) 0;
}

.nav-menu a:hover {
  color: var(--purple-400);
}

/* Underline animation */
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple-600), var(--indigo-500));
  transition: width var(--duration-base);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-menu a.active {
  color: var(--purple-400);
}

.nav-actions {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--duration-base), opacity var(--duration-base);
  border-radius: 2px;
}

.mobile-menu-toggle.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.mobile-menu-toggle.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-container {
    padding: var(--space-3) var(--space-4);
  }
  
  .nav-menu {
    position: fixed;
    top: 65px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 65px);
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-8) var(--space-6);
    gap: var(--space-4);
    transition: left var(--duration-medium);
    border-right: 1px solid var(--border-subtle);
  }
  
  .nav-menu.open {
    left: 0;
  }
  
  .nav-menu a {
    font-size: var(--text-lg);
    padding: var(--space-3) 0;
  }
  
  .nav-menu a::after {
    bottom: var(--space-1);
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav-actions {
    display: none;
  }
  
  .nav-menu.open + .nav-actions {
    display: flex;
    position: fixed;
    bottom: var(--space-8);
    left: var(--space-6);
    right: var(--space-6);
    flex-direction: column;
    z-index: 101;
  }
}

@media (max-width: 480px) {
  .nav-logo {
    font-size: var(--text-h5);
  }
}