/* Mobilmenü: Panel-Animation, Hamburger → X */

.mobile-menu-btn {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.hamburger-bars {
  position: relative;
  display: block;
  width: 20px;
  height: 14px;
}

.hamburger-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition:
    transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.22s ease,
    top 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger-line:nth-child(1) {
  top: 0;
}

.hamburger-line:nth-child(2) {
  top: 6px;
}

.hamburger-line:nth-child(3) {
  top: 12px;
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

.mobile-menu-panel {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-10px) scale(0.98);
  transform-origin: top center;
  transition:
    opacity 0.2s ease-out,
    transform 0.26s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0.26s linear;
}

.mobile-menu-panel.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
  .mobile-menu-panel,
  .hamburger-line {
    transition-duration: 0.01ms !important;
  }

  .mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(1),
  .mobile-menu-btn[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transition-duration: 0.01ms !important;
  }
}

.mobile-menu-panel.is-open .mobile-menu-links > a,
.mobile-menu-panel.is-open .mobile-menu-links > div {
  animation: mobile-nav-item-in 0.32s cubic-bezier(0.22, 1, 0.36, 1) backwards;
}

.mobile-menu-panel.is-open .mobile-menu-links > *:nth-child(1) {
  animation-delay: 0.03s;
}
.mobile-menu-panel.is-open .mobile-menu-links > *:nth-child(2) {
  animation-delay: 0.06s;
}
.mobile-menu-panel.is-open .mobile-menu-links > *:nth-child(3) {
  animation-delay: 0.09s;
}
.mobile-menu-panel.is-open .mobile-menu-links > *:nth-child(4) {
  animation-delay: 0.12s;
}
.mobile-menu-panel.is-open .mobile-menu-links > *:nth-child(5) {
  animation-delay: 0.15s;
}
.mobile-menu-panel.is-open .mobile-menu-links > *:nth-child(6) {
  animation-delay: 0.18s;
}

@keyframes mobile-nav-item-in {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .mobile-menu-panel.is-open .mobile-menu-links > * {
    animation: none !important;
  }
}