/* ========================================
   BHUYAS — HAMBURGER MENU
   CAD Line Animations with Dimensions
   ======================================== */

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
  position: relative;
}

.hamburger::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  border: 1px solid rgba(92, 124, 153, 0.3);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.hamburger.active::before {
  opacity: 1;
}

.hamburger::after {
  content: '24px';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  color: var(--accent);
  opacity: 0;
  letter-spacing: 0.05em;
  transition: opacity 0.4s ease 0.2s;
}

.hamburger.active::after {
  opacity: 1;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

/* Only target the first 3 spans (hamburger bars) */
.hamburger span:nth-child(1),
.hamburger span:nth-child(2),
.hamburger span:nth-child(3) {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
}

/* CAD dimension lines on hover */
.hamburger span:nth-child(1)::before,
.hamburger span:nth-child(2)::before,
.hamburger span:nth-child(3)::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  width: 1px;
  height: 8px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hamburger span:nth-child(1)::after,
.hamburger span:nth-child(2)::after,
.hamburger span:nth-child(3)::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 1px;
  height: 8px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hamburger:hover span:nth-child(1)::before,
.hamburger:hover span:nth-child(1)::after,
.hamburger:hover span:nth-child(2)::before,
.hamburger:hover span:nth-child(2)::after,
.hamburger:hover span:nth-child(3)::before,
.hamburger:hover span:nth-child(3)::after {
  opacity: 1;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Dimension text indicators */
.hamburger-dimension {
  position: absolute;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  color: var(--accent);
  opacity: 0;
  letter-spacing: 0.08em;
  pointer-events: none;
}

.hamburger.active .hamburger-dimension {
  animation: dimension-fadeIn 0.5s ease forwards;
}

@keyframes dimension-fadeIn {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.hamburger-top-dimension {
  top: -15px;
  left: 0;
  animation-delay: 0.1s;
}

.hamburger-middle-dimension {
  top: 50%;
  right: -30px;
  transform: translateY(-50%);
  animation-delay: 0.15s;
}

.hamburger-bottom-dimension {
  bottom: -15px;
  left: 0;
  animation-delay: 0.2s;
}

/* ========================================
   MOBILE MENU — FROSTED GLASS OVERLAY
   ======================================== */

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: rgba(14, 20, 27, 0.75);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 24px;
  z-index: 999;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.mobile-menu.active {
  right: 0;
  pointer-events: auto;
}

.menu-link {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: color 0.3s ease, opacity 0.4s ease, transform 0.4s ease;
  opacity: 0;
  transform: translateX(20px);
  position: relative;
}

.menu-link::before {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.4s ease;
}

.mobile-menu.active .menu-link {
  opacity: 1;
  transform: translateX(0);
}

.mobile-menu.active .menu-link:hover::before {
  width: 100%;
}

.mobile-menu.active .menu-link:nth-child(1) {
  transition-delay: 0.1s;
}

.mobile-menu.active .menu-link:nth-child(2) {
  transition-delay: 0.15s;
}

.mobile-menu.active .menu-link:nth-child(3) {
  transition-delay: 0.2s;
}

.mobile-menu.active .menu-link:nth-child(4) {
  transition-delay: 0.25s;
}

.mobile-menu.active .menu-link:nth-child(5) {
  transition-delay: 0.3s;
}

.mobile-menu.active .menu-link:nth-child(6) {
  transition-delay: 0.35s;
}

.menu-link:hover,
.menu-link.active {
  color: var(--text);
}

/* ========================================
   ENHANCED: LINES → X → HAMBURGER
   God-level transformation animations
   ======================================== */

.hamburger span {
  will-change: transform;
}

.hamburger.x-mode span:nth-child(1) {
  animation: toX1 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.hamburger.x-mode span:nth-child(2) {
  animation: hideMiddle 0.4s ease forwards;
}

.hamburger.x-mode span:nth-child(3) {
  animation: toX2 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes toX1 {
  0% {
    transform: rotate(0) translate(0, 0);
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
  100% {
    transform: rotate(45deg) translate(11px, 11px) scaleX(1.1);
    opacity: 1;
  }
}

@keyframes toX2 {
  0% {
    transform: rotate(0) translate(0, 0);
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
  100% {
    transform: rotate(-45deg) translate(8px, -8px) scaleX(1.1);
    opacity: 1;
  }
}

@keyframes hideMiddle {
  0% {
    opacity: 1;
    transform: scaleY(1);
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 0;
    transform: scaleY(0);
  }
}

.hamburger.normal-mode span:nth-child(1),
.hamburger.normal-mode span:nth-child(3) {
  animation: backToHamburger 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.hamburger.normal-mode span:nth-child(2) {
  animation: showMiddle 0.4s ease 0.1s forwards;
}

@keyframes backToHamburger {
  0% {
    transform: var(--current-transform, rotate(0));
    opacity: 1;
  }
  100% {
    transform: rotate(0) translate(0, 0) scaleX(1);
    opacity: 1;
  }
}

@keyframes showMiddle {
  0% {
    opacity: 0;
    transform: scaleY(0);
  }
  100% {
    opacity: 1;
    transform: scaleY(1);
  }
}

/* Ripple effect on transformation */
@keyframes ripple {
  0% {
    box-shadow: 0 0 0 0 rgba(92, 124, 153, 0.4);
  }
  70% {
    box-shadow: 0 0 0 25px rgba(92, 124, 153, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(92, 124, 153, 0);
  }
}

.hamburger.transforming {
  animation: ripple 0.8s ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .mobile-menu,
  .menu-link,
  .hamburger span {
    transition: none !important;
    animation: none !important;
  }
}