/* hamburger icon + animation */
.hamburger {
  height: 40px;
  width: 40px;
  margin-right: -8px;
  border-radius: 50%;
  background: none;
  border: none;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all 0.5s ease-in-out;
  transition: background-color 0s;

  touch-action: manipulation;

  &:active {
    background-color: rgb(from var(--mb) r g b / 0.2);
  }
}

.hamburger-patty {
  width: 20px;
  height: 2px;
  border-radius: 1px;
  background-color: var(--shw);
  transition: all 0.25s ease-in-out;
  transform: translateX(2px);
}

.hamburger-patty::before,
.hamburger-patty::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  border-radius: 1px;
  background-color: var(--shw);
  transition: all 0.25s ease-in-out;
}

.hamburger-patty::before {
  transform: translateY(-10px) translateX(-4px);
}

.hamburger-patty::after {
  transform: translateY(8px) translateX(-4px);
}

.hamburger.open {
  .hamburger-patty {
    background: transparent;
  }

  .hamburger-patty::before {
    transform: rotate(45deg) translate(-2px, 3px);
    width: 24px;
  }

  .hamburger-patty::after {
    transform: rotate(-45deg) translate(-2px, -3px);
    width: 24px;
  }
}

/* New hamburger menu button with three bars */
.hamburger-btn {
  height: 40px;
  width: 40px;
  margin-right: -8px;
  border-radius: 50%;
  background: none;
  border: none;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
  touch-action: manipulation;
  font-family: var(--font-sans);
  letter-spacing: 0.08em;

  &:active {
    background-color: rgb(from var(--mb) r g b / 0.2);
  }
}

.hamburger-btn .bar {
  width: 24px;
  height: 2px;
  background-color: var(--mb);
  border-radius: 1px;
  position: absolute;
  transition: all 0.3s ease-in-out;
  transform-origin: center;
}

.hamburger-btn .bar:nth-child(1) {
  transform: translateY(-8px);
}

.hamburger-btn .bar:nth-child(2) {
  /* Middle bar - centered */
}

.hamburger-btn .bar:nth-child(3) {
  transform: translateY(8px);
}

.hamburger-btn.open .bar:nth-child(1) {
  transform: translateY(0) rotate(45deg);
}

.hamburger-btn.open .bar:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.hamburger-btn.open .bar:nth-child(3) {
  transform: translateY(0) rotate(-45deg);
}

/* the hamburger menu itself */
.hamburger-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  height: calc(100vh - var(--header-height));
  width: 100vw;
  background-color: rgb(from var(--mb) r g b / 0.4);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--shw);
  transition: transform 150ms ease-out;
  transform: translateX(100%);
  transform: translateX(100%);
  z-index: 50;

  &[hidden] {
    transform: translateX(100%);
    transform: translateX(100%);
    display: block;
  }
}

/* Ensure exact alignment under the header on small screens */
@media only screen and (max-width: 640px) {
  .hamburger-menu {
    top: var(--header-height) !important;
    height: calc(100vh - var(--header-height)) !important;
    border-top: 0;
    /* avoid a visible line that can look like a gap */
  }
}

.hamburger-menu-ul {
  padding-top: var(--crotchet);
  list-style-type: none;
  height: calc(100svh - var(--header-height));
  overflow-y: scroll;
  display: flex;
  flex-direction: column;
}

.hamburger-menu-li {
  width: 100%;
}

.hamburger-menu-li>a,
.hamburger-menu-li>a:visited {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--crotchet);
  line-height: 1;
  font-weight: 500;
  padding: var(--crotchet) var(--minim);
  color: var(--shw);
  text-decoration: none;
  background: none;
  cursor: pointer;

  &:hover {
    background-color: rgb(from var(--mb) r g b / 0.2);
  }

  &:active {
    background-color: var(--fg-lighter);
  }
}

.hand-icon {
  height: 30px;
  color: var(--shw);
}

.hamburger-menu-bottom {
  margin-top: auto;
  border-top: 1px solid var(--shw);
  padding: var(--crotchet) 0;
}

.hamburger-subsection {
  margin-left: var(--minim);
  border-left: 1px solid var(--shw);
}

/* Mobile/Tablet Menu Styles */
.mobile-tablet-menu-overlay {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100vw;
  height: calc(100vh - var(--header-height));
  background: var(--shw);
  z-index: 9999;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  display: block;
}

.mobile-tablet-menu-overlay:not(.hidden) {
  transform: translateX(0);
}

.mobile-tablet-menu-container {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.mobile-tablet-menu-content {
  flex: 1;
  padding: var(--minim);
}

.mobile-tablet-menu-section {
  margin-bottom: var(--semibreve);
}

.mobile-tablet-menu-section:last-child {
  margin-bottom: 0;
}

.mobile-tablet-menu-section h3 {
  margin: 0 0 var(--minim) 0;
  font-size: 1em;
  font-weight: 600;
  color: var(--fg);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mobile-tablet-menu-category {
  margin-bottom: var(--minim);
}

.mobile-tablet-menu-category:last-child {
  margin-bottom: 0;
}

.mobile-tablet-menu-category h4 {
  margin: 0 0 var(--crotchet) 0;
  font-size: 0.875em;
  font-weight: 500;
  color: var(--mb-lightest);
}

.mobile-tablet-menu-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-tablet-menu-section li {
  margin-bottom: var(--crotchet);
}

.mobile-tablet-menu-section li:last-child {
  margin-bottom: 0;
}

.mobile-tablet-menu-section a {
  display: block;
  padding: var(--crotchet) var(--minim);
  color: var(--mb-lightest);
  text-decoration: none;
  border-radius: var(--quaver);
  transition: background-color 0.2s;
  font-size: 0.875em;
}

.mobile-tablet-menu-section a:hover {
  background-color: rgb(from var(--mb) r g b / 0.1);
}

.mobile-tablet-menu-section a:active {
  background-color: rgb(from var(--mb) r g b / 0.2);
}

/* Accordion Styles */
.mobile-tablet-accordion {
  margin-bottom: var(--crotchet);
}

.accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--crotchet) var(--minim);
  background: none;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--mb);
  font-family: var(--font-sans);
  font-size: 1em;
  font-weight: 540;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color 0.2s;
  text-align: left;
}

.accordion-header button span {
  letter-spacing: 0.08em;
}

.accordion-arrow {
  transition: transform 0.3s ease;
  display: inline-flex;
  align-items: center;
}

.accordion-icon {
  width: auto;
  height: 8px;
  color: var(--mb);
  transition: transform 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
  transform-origin: center;
}

.accordion-icon.rotated {
  transform: rotate(90deg);
}

.accordion-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s cubic-bezier(0.4, 0.0, 0.2, 1),
    padding 0.4s cubic-bezier(0.4, 0.0, 0.2, 1),
    opacity 0.3s ease;
  opacity: 0;
}

.accordion-content.collapsed {
  max-height: 0;
  padding: 0;
  opacity: 0;
}

.accordion-content:not(.collapsed) {
  max-height: 500px;
  padding: var(--crotchet) 0;
  overflow: visible;
  opacity: 1;
}

.accordion-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.accordion-content li {
  margin-bottom: var(--crotchet);
}

.accordion-content li:last-child {
  margin-bottom: 0;
}

.accordion-content a {
  display: block;
  padding: var(--crotchet) var(--minim);
  color: var(--mb-lightest);
  text-decoration: none;
  border-radius: var(--quaver);
  transition: background-color 0.2s;
  font-size: 0.875em;
  font-weight: 500;
}

.accordion-content a:hover {
  background-color: rgb(from var(--mb) r g b / 0.1);
}

.accordion-content a:active {
  background-color: rgb(from var(--mb) r g b / 0.2);
}

/* Mobile/Tablet Menu Footer Styles */
.mobile-tablet-menu-footer {
  padding: var(--minim) 0;
  border-top: 1px solid var(--mb);
  text-align: right;
}

.mobile-tablet-menu-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-tablet-menu-footer li {
  margin-bottom: 0;
}

.mobile-tablet-menu-footer a {
  display: block;
  padding: 6px var(--minim);
  color: var(--mb);
  text-decoration: none;
  border-radius: var(--quaver);
  transition: background-color 0.2s;
  font-size: 0.875em;
  font-weight: 540;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Desktop-only menu (hidden on mobile/tablet) */
.desktop-only {
  display: block;
}

/* Mobile/Tablet-specific responsive behavior */
@media only screen and (max-width: 1023px) {
  .desktop-only {
    display: none !important;
  }

  /* Hide desktop menu on mobile/tablet */
  #menu-overlay.search-overlay {
    display: none !important;
  }

  /* Show mobile/tablet menu */
  .mobile-tablet-menu-overlay {
    display: block;
  }

  /* Tablet-specific adjustments (640px - 1023px) */
  @media only screen and (min-width: 640px) {
    .mobile-tablet-menu-overlay {
      width: 400px;
      left: auto;
      right: 0;
    }

    .mobile-tablet-menu-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--minim);
    }

    .mobile-tablet-menu-section {
      margin-bottom: 0;
    }

    .mobile-tablet-menu-section:last-child {
      grid-column: 1 / -1;
    }
  }

  /* Mobile-specific adjustments (<= 640px) */
  @media only screen and (max-width: 640px) {
    .mobile-tablet-menu-overlay {
      width: 100vw;
    }

    .mobile-tablet-menu-container {
      height: 100%;
    }

    .mobile-tablet-menu-content {
      padding: var(--minim-dotted);
    }
  }
}

/* Desktop-specific responsive behavior (>= 1024px) */
@media only screen and (min-width: 1024px) {

  /* Hide mobile/tablet menu on desktop */
  .mobile-tablet-menu-overlay {
    display: none !important;
  }

  /* Show desktop menu */
  #menu-overlay.search-overlay {
    display: block;
  }
}

/* Hide hamburger on desktop (since we keep the existing menu for desktop) */
@media only screen and (min-width: 1024px) {
  .hamburger-wrapper {
    display: none;
  }
}

/* Show hamburger on mobile and tablet */
@media only screen and (max-width: 1023px) {
  .header-right-nav-ul {
    display: none;
  }
}