/* =============================================================================
   MOBILE NAVIGATION SYSTEM - INERCIA THEME
   Responsive mobile-first navigation with slide-out drawer
   ============================================================================= */

/* =============================================================================
   HEADER RESPONSIVE LAYOUT
   ============================================================================= */

.site-header {
  position: relative;
  background: var(--color-neutral-950, #ffffff);
  border-bottom: 1px solid var(--color-neutral-200, #efeae7);
  z-index: 1000;
  width: 100%;
}

.header-main {
  width: 100%;
}

.header-container {
  width: var(--container-mobile);
  max-width: 100%;
  margin: 0 auto;
  padding: 12px 16px;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* =============================================================================
   LOGO/BRANDING RESPONSIVE
   ============================================================================= */

.site-branding {
  flex-shrink: 0;
  z-index: 1001;
}

.custom-logo {
  display: block;
  height: auto;
  max-height: 32px;
  width: auto;
}

/* =============================================================================
   DESKTOP NAVIGATION (Hidden on Mobile)
   ============================================================================= */

.main-navigation {
  display: none;
}

.header-cta {
  display: none;
}

/* =============================================================================
   MOBILE MENU TOGGLE BUTTON
   ============================================================================= */

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--color-primary-600, #093855);
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
  z-index: 1002;
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus {
  background: var(--color-neutral-200, #efeae7);
  outline: none;
}

.mobile-menu-toggle:active {
  background: var(--color-primary-300, #6a97b9);
  color: var(--color-neutral-950, #ffffff);
  transform: scale(0.95);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
}

/* Mobile menu toggle animation when active */
.mobile-menu-toggle.active svg {
  transform: rotate(90deg);
}

/* =============================================================================
   MOBILE NAVIGATION OVERLAY
   ============================================================================= */

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(9, 56, 85, 0.8);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1003;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* =============================================================================
   MOBILE NAVIGATION DRAWER
   ============================================================================= */

.mobile-navigation {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--color-neutral-950, #ffffff);
  box-shadow: -4px 0 24px rgba(9, 56, 85, 0.15);
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1004;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-navigation.active {
  right: 0;
}

/* Mobile navigation header */
.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-neutral-200, #efeae7);
  background: var(--color-neutral-50, #faf7f5);
}

.mobile-nav-logo {
  height: 28px;
  width: auto;
}

.mobile-nav-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--color-primary-600, #093855);
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.mobile-nav-close:hover,
.mobile-nav-close:focus {
  background: var(--color-neutral-200, #efeae7);
}

.mobile-nav-close svg {
  width: 20px;
  height: 20px;
}

/* Mobile navigation content */
.mobile-nav-content {
  padding: 24px 0;
}

/* Mobile navigation menu */
.mobile-nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-menu li {
  margin: 0;
}

.mobile-nav-menu a {
  display: flex;
  align-items: center;
  padding: 16px 24px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary-600, #093855);
  text-decoration: none;
  border-bottom: 1px solid var(--color-neutral-200, #efeae7);
  transition: all 0.2s ease;
  min-height: 56px;
}

.mobile-nav-menu a:hover,
.mobile-nav-menu a:focus {
  background: var(--color-neutral-50, #faf7f5);
  color: var(--color-accent-400, #eb6929);
}

.mobile-nav-menu a:active {
  background: var(--color-neutral-200, #efeae7);
  transform: scale(0.98);
}

/* Current page styling */
.mobile-nav-menu .current-menu-item a,
.mobile-nav-menu .current-menu-ancestor a {
  background: var(--color-accent-50, #fff7ed);
  color: var(--color-accent-400, #eb6929);
  font-weight: 600;
  border-left: 4px solid var(--color-accent-400, #eb6929);
}

/* Mobile CTA Button */
.mobile-nav-cta {
  margin: 24px;
  margin-bottom: 40px;
}

.mobile-nav-cta .btn-figma-cta {
  display: block;
  width: 100%;
  padding: 16px 24px;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  background: var(--color-accent-400, #eb6929);
  color: var(--color-neutral-950, #ffffff);
  text-decoration: none;
  border-radius: var(--border-radius-medium, 32px);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-medium);
  min-height: var(--touch-target-min, 44px);
}

.mobile-nav-cta .btn-figma-cta:hover {
  background: #d55a20;
  transform: translateY(-1px);
  box-shadow: var(--shadow-heavy);
}

.mobile-nav-cta .btn-figma-cta:active {
  transform: translateY(0) scale(0.98);
}

/* =============================================================================
   TABLET RESPONSIVE (768px+)
   ============================================================================= */

@media (min-width: 768px) {
  .header-container {
    width: var(--container-tablet);
    padding: 16px 32px;
  }

  .header-content {
    gap: 24px;
  }

  .custom-logo {
    max-height: 36px;
  }

  /* Show desktop navigation on tablet */
  .main-navigation {
    display: block;
    flex: 1;
  }

  .header-cta {
    display: block;
  }

  /* Hide mobile menu toggle on tablet */
  .mobile-menu-toggle {
    display: none;
  }

  /* Ensure mobile navigation is hidden on tablet+ */
  .mobile-navigation,
  .mobile-menu-overlay {
    display: none !important;
  }
}

/* =============================================================================
   DESKTOP RESPONSIVE (1024px+)
   ============================================================================= */

@media (min-width: 1024px) {
  .header-container {
    width: var(--container-desktop);
    padding: 20px 0;
  }

  .header-content {
    gap: 48px;
  }

  .custom-logo {
    max-height: 40px;
  }
}

/* =============================================================================
   LARGE DESKTOP (1440px+)
   ============================================================================= */

@media (min-width: 1440px) {
  .header-container {
    width: var(--container-large);
  }
}

/* =============================================================================
   MOBILE MENU ANIMATION STATES
   ============================================================================= */

/* Body scroll lock when mobile menu is open */
body.mobile-menu-open {
  overflow: hidden;
  height: 100vh;
}

/* Safe area adjustments for iOS devices */
@supports (padding: max(0px)) {
  .mobile-navigation {
    padding-bottom: max(24px, env(safe-area-inset-bottom));
  }
  
  .mobile-nav-header {
    padding-top: max(16px, env(safe-area-inset-top));
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .mobile-menu-toggle svg,
  .mobile-navigation,
  .mobile-menu-overlay,
  .mobile-nav-menu a {
    transition: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .mobile-navigation {
    border: 2px solid;
  }
  
  .mobile-nav-menu a {
    border-bottom-width: 2px;
  }
}

/* Focus visible for keyboard navigation */
.mobile-menu-toggle:focus-visible,
.mobile-nav-close:focus-visible,
.mobile-nav-menu a:focus-visible {
  outline: 2px solid var(--color-accent-400, #eb6929);
  outline-offset: 2px;
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .mobile-nav-menu a {
    min-height: 60px;
    font-size: 17px;
  }
  
  .mobile-menu-toggle {
    width: 48px;
    height: 48px;
  }
}