/* 
 * Professional Hamburger Menu Implementation
 * Features: Full-screen mobile menu with smooth animations, proper z-index management,
 * and enhanced accessibility features
 */

/* ==== MOBILE NAVIGATION LAYOUT ==== */

/* Theme toggle positioning for mobile - Top Left */
@media (max-width: 1199px) {
  #theme-toggle {
    position: fixed !important;
    top: 15px !important;
    left: 15px !important; /* Moved to left side */
    right: auto !important;
    z-index: 10001 !important; /* Higher than hamburger to ensure visibility */
    width: 45px !important;
    height: 45px !important;
    font-size: 1.1rem !important;
  }
  
  /* Smaller on very small screens */
  @media (max-width: 480px) {
    #theme-toggle {
      top: 12px !important;
      left: 12px !important;
      width: 40px !important;
      height: 40px !important;
      font-size: 1rem !important;
    }
  }
}

/* ==== HAMBURGER BUTTON ==== */

/* Enhanced hamburger button - Top Right */
@media (max-width: 1199px) {
  .header .header-toggle {
    display: flex !important;
    position: fixed !important;
    top: 15px !important;
    right: 15px !important;
    z-index: 10000 !important; /* High z-index but below theme toggle */
    width: 50px !important;
    height: 50px !important;
    border-radius: 12px !important; /* Modern rounded corners */
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    border: 2px solid var(--accent-color) !important;
    color: var(--accent-color) !important;
    font-size: 22px !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: 
      0 4px 20px rgba(0, 0, 0, 0.15),
      0 0 0 1px rgba(var(--accent-color-rgb), 0.2) !important;
  }

  /* Dark mode hamburger styling */
  [data-theme="dark"] .header .header-toggle {
    background: rgba(30, 30, 30, 0.95) !important;
    color: var(--dark-accent) !important;
    border-color: var(--dark-accent) !important;
    box-shadow: 
      0 4px 20px rgba(0, 0, 0, 0.4),
      0 0 0 1px rgba(var(--dark-accent-rgb), 0.3) !important;
  }

  /* Hover effects */
  .header .header-toggle:hover {
    transform: scale(1.05) !important;
    box-shadow: 
      0 6px 25px rgba(0, 0, 0, 0.2),
      0 0 0 2px rgba(var(--accent-color-rgb), 0.4) !important;
  }

  [data-theme="dark"] .header .header-toggle:hover {
    box-shadow: 
      0 6px 25px rgba(0, 0, 0, 0.5),
      0 0 0 2px rgba(var(--dark-accent-rgb), 0.5) !important;
  }

  /* Active state - when menu is open, show X */
  .header .header-toggle.active {
    background: var(--accent-color) !important;
    color: white !important;
    border-color: var(--accent-color) !important;
    transform: rotate(90deg) !important;
  }

  [data-theme="dark"] .header .header-toggle.active {
    background: var(--dark-accent) !important;
    color: var(--dark-background) !important;
    border-color: var(--dark-accent) !important;
  }

  /* Smaller screens adjustments */
  @media (max-width: 768px) {
    .header .header-toggle {
      top: 12px !important;
      right: 12px !important;
      width: 46px !important;
      height: 46px !important;
      font-size: 20px !important;
    }
  }

  @media (max-width: 480px) {
    .header .header-toggle {
      top: 12px !important;
      right: 12px !important;
      width: 42px !important;
      height: 42px !important;
      font-size: 18px !important;
    }
  }
}

/* ==== MOBILE MENU OVERLAY & CONTAINER ==== */

@media (max-width: 1199px) {
  /* Full-screen overlay */
  .mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    opacity: 0;
    visibility: hidden;
    z-index: 9998;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  [data-theme="dark"] .mobile-menu-overlay {
    background: rgba(0, 0, 0, 0.9);
  }

  /* Header - Full screen mobile menu */
  .header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100vh !important;
    background: linear-gradient(135deg, var(--background-color), var(--surface-color)) !important;
    transform: translateX(-100%) !important;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1) !important;
    z-index: 9999 !important;
    overflow-y: auto !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 0 !important;
  }

  /* Dark mode menu background */
  [data-theme="dark"] .header {
    background: linear-gradient(135deg, var(--dark-background), var(--dark-surface)) !important;
    box-shadow: inset 0 0 100px rgba(76, 201, 240, 0.03) !important;
  }

  /* Menu open state */
  .header.header-show {
    transform: translateX(0) !important;
  }

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

  /* Hide default header elements in mobile menu */
  .header .profile-img,
  .header .logo,
  .header .social-links {
    display: none !important;
  }
}

/* ==== NAVIGATION MENU STYLING ==== */

@media (max-width: 1199px) {
  .header .navmenu {
    display: block !important;
    width: 100% !important;
    text-align: center !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .header .navmenu ul {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    max-width: 400px !important;
    width: 100% !important;
  }

  .header .navmenu li {
    opacity: 0;
    transform: translateY(30px);
    animation: slideInUp 0.6s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
  }

  /* Stagger animation for menu items */
  .header.header-show .navmenu li:nth-child(1) { animation-delay: 0.1s; }
  .header.header-show .navmenu li:nth-child(2) { animation-delay: 0.15s; }
  .header.header-show .navmenu li:nth-child(3) { animation-delay: 0.2s; }
  .header.header-show .navmenu li:nth-child(4) { animation-delay: 0.25s; }
  .header.header-show .navmenu li:nth-child(5) { animation-delay: 0.3s; }
  .header.header-show .navmenu li:nth-child(6) { animation-delay: 0.35s; }
  .header.header-show .navmenu li:nth-child(7) { animation-delay: 0.4s; }
  .header.header-show .navmenu li:nth-child(8) { animation-delay: 0.45s; }
  .header.header-show .navmenu li:nth-child(9) { animation-delay: 0.5s; }
  .header.header-show .navmenu li:nth-child(10) { animation-delay: 0.55s; }
  .header.header-show .navmenu li:nth-child(11) { animation-delay: 0.6s; }
  .header.header-show .navmenu li:nth-child(12) { animation-delay: 0.65s; }

  @keyframes slideInUp {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Menu link styling */
  .header .navmenu a {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 16px 24px !important;
    font-size: 1.1rem !important;
    font-weight: 500 !important;
    color: var(--heading-color) !important;
    text-decoration: none !important;
    border-radius: 16px !important;
    background: rgba(255, 255, 255, 0.05) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    position: relative !important;
    overflow: hidden !important;
  }

  [data-theme="dark"] .header .navmenu a {
    color: var(--dark-default) !important;
    background: rgba(255, 255, 255, 0.03) !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
  }

  /* Menu link icons */
  .header .navmenu a i {
    font-size: 1.2rem !important;
    margin-right: 12px !important;
    width: 24px !important;
    text-align: center !important;
    color: var(--accent-color) !important;
  }

  [data-theme="dark"] .header .navmenu a i {
    color: var(--dark-accent) !important;
  }

  /* Hover effects */
  .header .navmenu a:hover {
    background: rgba(var(--accent-color-rgb), 0.15) !important;
    border-color: rgba(var(--accent-color-rgb), 0.3) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 25px rgba(var(--accent-color-rgb), 0.2) !important;
  }

  [data-theme="dark"] .header .navmenu a:hover {
    background: rgba(var(--dark-accent-rgb), 0.15) !important;
    border-color: rgba(var(--dark-accent-rgb), 0.3) !important;
    box-shadow: 0 8px 25px rgba(var(--dark-accent-rgb), 0.2) !important;
  }

  /* Active link styling */
  .header .navmenu a.active {
    background: linear-gradient(135deg, var(--accent-color), rgba(var(--accent-color-rgb), 0.8)) !important;
    color: white !important;
    border-color: var(--accent-color) !important;
    box-shadow: 0 8px 25px rgba(var(--accent-color-rgb), 0.4) !important;
  }

  .header .navmenu a.active i {
    color: white !important;
  }

  [data-theme="dark"] .header .navmenu a.active {
    background: linear-gradient(135deg, var(--dark-accent), rgba(var(--dark-accent-rgb), 0.8)) !important;
    color: var(--dark-background) !important;
    border-color: var(--dark-accent) !important;
  }

  [data-theme="dark"] .header .navmenu a.active i {
    color: var(--dark-background) !important;
  }

  /* Ripple effect on click */
  .header .navmenu a::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    transition: all 0.5s ease;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
  }

  .header .navmenu a:active::before {
    width: 300px;
    height: 300px;
  }
}

/* ==== BODY SCROLL LOCK ==== */

/* Prevent body scroll when mobile menu is open */
body.mobile-nav-active {
  overflow: hidden !important;
  position: fixed !important;
  width: 100% !important;
  height: 100% !important;
}

/* ==== CLOSE BUTTON ==== */

@media (max-width: 1199px) {
  /* Close button in menu */
  .mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--heading-color);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  [data-theme="dark"] .mobile-menu-close {
    color: var(--dark-default);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
  }

  .mobile-menu-close:hover {
    background: rgba(255, 0, 0, 0.1);
    border-color: rgba(255, 0, 0, 0.3);
    color: #ff4444;
    transform: rotate(90deg) scale(1.1);
  }
}

/* ==== ACCESSIBILITY ENHANCEMENTS ==== */

/* Focus indicators */
@media (max-width: 1199px) {
  .header .header-toggle:focus,
  .header .navmenu a:focus,
  .mobile-menu-close:focus {
    outline: 3px solid var(--accent-color) !important;
    outline-offset: 2px !important;
  }

  [data-theme="dark"] .header .header-toggle:focus,
  [data-theme="dark"] .header .navmenu a:focus,
  [data-theme="dark"] .mobile-menu-close:focus {
    outline-color: var(--dark-accent) !important;
  }
}

/* Screen reader only text */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ==== RESPONSIVE ENHANCEMENTS ==== */

/* Very small screens */
@media (max-width: 380px) {
  .header .navmenu a {
    padding: 14px 20px !important;
    font-size: 1rem !important;
  }
  
  .header .navmenu a i {
    font-size: 1.1rem !important;
    margin-right: 10px !important;
  }
}

/* Landscape phones */
@media (max-width: 1199px) and (orientation: landscape) and (max-height: 500px) {
  .header .navmenu ul {
    gap: 4px !important;
  }
  
  .header .navmenu a {
    padding: 12px 20px !important;
    font-size: 0.95rem !important;
  }
}

/* ==== PERFORMANCE OPTIMIZATIONS ==== */

/* Hardware acceleration for smooth animations */
@media (max-width: 1199px) {
  .header,
  .mobile-menu-overlay,
  .header .header-toggle,
  .header .navmenu li {
    will-change: transform, opacity;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
  }
}

/* Disable animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .header,
  .mobile-menu-overlay,
  .header .header-toggle,
  .header .navmenu li,
  .header .navmenu a {
    transition: none !important;
    animation: none !important;
  }
}