/* ============================================
   TimrX Apple-Style 2-Line Burger Menu
   Minimalist dark design with cyan glow
   ============================================ */

/* === Burger Button - Top Right === */
#burgerBtn {
  display: none;
  position: fixed;
  top: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border: none;
  background: transparent;
  cursor: pointer;
  z-index: 10001;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0;
}

#burgerBtn:hover {
  transform: scale(1.08);
  filter: drop-shadow(0 0 12px rgba(0, 255, 255, 0.4));
}

#burgerBtn:active {
  transform: scale(0.95);
}

/* Burger icon - 2 lines only */
.burger-icon {
  position: relative;
  width: 28px;
  height: 20px;
  margin: auto;
}

.burger-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: linear-gradient(90deg, #ffffff, #00FFFF);
  border-radius: 3px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px rgba(0, 255, 255, 0.3);
}

/* Top line */
.burger-line:nth-child(1) {
  top: 4px;
}

/* Bottom line */
.burger-line:nth-child(2) {
  bottom: 4px;
}

/* Animated X when open */
#burgerBtn.active .burger-line:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  background: linear-gradient(90deg, #00FFFF, #00CCFF);
  box-shadow: 0 0 16px rgba(0, 255, 255, 0.6);
}

#burgerBtn.active .burger-line:nth-child(2) {
  bottom: 50%;
  transform: translateY(50%) rotate(-45deg);
  background: linear-gradient(90deg, #00FFFF, #00CCFF);
  box-shadow: 0 0 16px rgba(0, 255, 255, 0.6);
}

/* === Glassmorphism Backdrop === */
#burgerOverlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#burgerOverlay.active {
  opacity: 1;
  visibility: visible;
}

/* === Burger Menu Panel - Slide Down from Top === */
#burgerMenu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: linear-gradient(180deg,
    rgba(10, 10, 10, 0.98) 0%,
    rgba(18, 18, 18, 0.96) 100%);
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  border-bottom: 1px solid rgba(0, 255, 255, 0.2);
  padding: 100px 40px 60px;
  max-height: 100vh;
  overflow-y: auto;
  transform: translateY(-100%);
  transition: transform 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.8),
              0 2px 40px rgba(0, 255, 255, 0.15);
}

#burgerMenu.active {
  transform: translateY(0);
  animation: slideDownBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideDownBounce {
  0% { transform: translateY(-100%); }
  60% { transform: translateY(8px); }
  100% { transform: translateY(0); }
}

/* Glowing accent line at bottom */
#burgerMenu::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent,
    rgba(0, 255, 255, 0.6) 20%,
    rgba(0, 204, 255, 0.6) 50%,
    rgba(0, 255, 255, 0.6) 80%,
    transparent
  );
  opacity: 0.8;
}

/* Menu items container */
.burger-menu__items {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 600px;
  margin: 0 auto;
}

/* Individual menu item */
.burger-menu__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: transparent;
  border: none;
  border-left: 3px solid transparent;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-family: 'Inter', 'Poppins', -apple-system, sans-serif;
  font-weight: 500;
  font-size: 20px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  position: relative;
  cursor: pointer;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Staggered fade-up animation */
#burgerMenu.active .burger-menu__item {
  animation: fadeUpItem 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  animation-delay: calc(0.08s * var(--item-index, 0));
}

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

/* Hover glow effect */
.burger-menu__item:hover {
  color: #00FFFF;
  border-left-color: #00FFFF;
  background: linear-gradient(90deg,
    rgba(0, 255, 255, 0.05),
    transparent
  );
  text-shadow: 0 0 20px rgba(0, 255, 255, 0.4);
}

/* Item icon */
.burger-menu__icon {
  font-size: 24px;
  color: rgba(0, 255, 255, 0.7);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 30px;
  text-align: center;
  filter: drop-shadow(0 0 8px rgba(0, 255, 255, 0.3));
}

.burger-menu__item:hover .burger-menu__icon {
  color: #00FFFF;
  transform: scale(1.2) translateX(4px);
  filter: drop-shadow(0 0 16px rgba(0, 255, 255, 0.6));
}

/* Item text */
.burger-menu__text {
  flex: 1;
  margin-left: 20px;
  transition: all 0.3s ease;
}

/* Emphasized item (Contact) */
.burger-menu__item--emphasis {
  margin-top: 20px;
  padding-top: 32px;
  border-top: 1px solid rgba(0, 255, 255, 0.15);
  color: rgba(0, 255, 255, 0.9);
}

.burger-menu__item--emphasis .burger-menu__icon {
  color: #00FFFF;
  filter: drop-shadow(0 0 12px rgba(0, 255, 255, 0.5));
}

.burger-menu__item--emphasis:hover {
  color: #ffffff;
  border-left-color: #00FFFF;
  background: linear-gradient(90deg,
    rgba(0, 255, 255, 0.1),
    transparent
  );
}

/* Custom scrollbar */
#burgerMenu::-webkit-scrollbar {
  width: 6px;
}

#burgerMenu::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 10px;
}

#burgerMenu::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg,
    rgba(0, 255, 255, 0.6),
    rgba(0, 204, 255, 0.6)
  );
  border-radius: 10px;
}

#burgerMenu::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg,
    rgba(0, 255, 255, 0.8),
    rgba(0, 204, 255, 0.8)
  );
}

/* === Media Queries === */
/* Show burger on mobile/tablet */
@media (max-width: 980px) {
  #burgerBtn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Hide desktop navigation */
  .nav-links,
  .nav-cta,
  .menu,
  .login,
  .signup,
  .btn-logout {
    display: none !important;
  }

  #burgerMenu {
    padding: 90px 24px 40px;
  }

  .burger-menu__item {
    font-size: 18px;
    padding: 18px 20px;
  }
}

/* Ensure burger is hidden on desktop */
@media (min-width: 981px) {
  #burgerBtn,
  #burgerMenu,
  #burgerOverlay {
    display: none !important;
  }
}

/* Mobile optimization */
@media (max-width: 640px) {
  #burgerBtn {
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }

  .burger-icon {
    width: 24px;
    height: 18px;
  }

  #burgerMenu {
    padding: 80px 20px 30px;
  }

  .burger-menu__item {
    font-size: 16px;
    padding: 16px 18px;
  }

  .burger-menu__icon {
    font-size: 20px;
  }

  .burger-menu__text {
    margin-left: 16px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  #burgerMenu,
  #burgerBtn,
  .burger-line,
  .burger-menu__item,
  #burgerOverlay {
    animation: none !important;
    transition-duration: 0.05s !important;
  }
}