/* 
 * Navigation Styles
 * Professional navigation component with mobile-first approach
 */

/* ==========================================
   NAVIGATION HEADER
   ========================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(139, 69, 19, 0.1);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-fixed);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.navbar {
  padding: var(--space-md) 0;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================
   LOGO
   ========================================== */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-secondary);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.navbar-brand:hover {
  color: var(--color-secondary);
  transform: scale(1.05);
}

.navbar-brand-icon {
  font-size: var(--font-size-3xl);
  filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.1));
}

/* ==========================================
   NAVIGATION MENU
   ========================================== */
.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--space-sm) 0;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transition: width var(--transition-normal);
}

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

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

.nav-link.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

/* ==========================================
   MOBILE MENU TOGGLE
   ========================================== */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-sm);
  background: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.navbar-toggle:hover {
  transform: scale(1.1);
}

.navbar-toggle-line {
  width: 25px;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  transform-origin: center;
}

.navbar-toggle.active .navbar-toggle-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.navbar-toggle.active .navbar-toggle-line:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.navbar-toggle.active .navbar-toggle-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ==========================================
   MOBILE NAVIGATION
   ========================================== */
@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }

  .navbar-nav {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    gap: 0;
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    border-top: 1px solid var(--color-gray-200);
  }

  .navbar-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-item {
    width: 100%;
    text-align: center;
  }

  .nav-link {
    display: block;
    padding: var(--space-lg);
    font-size: var(--font-size-lg);
    border-bottom: 1px solid var(--color-gray-100);
    transition: all var(--transition-normal);
  }

  .nav-link:hover {
    background: var(--color-bg-secondary);
    color: var(--color-primary);
  }

  .nav-link::after {
    display: none;
  }

  .nav-item:last-child .nav-link {
    border-bottom: none;
  }
}

/* ==========================================
   NAVIGATION ANIMATIONS
   ========================================== */
@keyframes slideInFromTop {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.site-header {
  animation: slideInFromTop 0.6s ease-out;
}

/* ==========================================
   NAVIGATION UTILITIES
   ========================================== */
.navbar-spacer {
  height: 80px; /* Matches navbar height */
}

/* Smooth scroll offset for fixed header */
html {
  scroll-padding-top: 80px;
}

/* ==========================================
   ACCESSIBILITY IMPROVEMENTS
   ========================================== */
.navbar-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-link:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .site-header {
    background: var(--color-white);
    border-bottom: 2px solid var(--color-primary);
  }

  .nav-link {
    border: 1px solid transparent;
  }

  .nav-link:hover,
  .nav-link:focus {
    border-color: var(--color-primary);
    background: var(--color-bg-secondary);
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .site-header,
  .navbar-toggle,
  .navbar-toggle-line,
  .nav-link,
  .navbar-nav {
    transition: none;
    animation: none;
  }
}