/* Mega-menu motion: flyout, drawer, accordion */

/* Desktop / tablet: subcategory flyout beside the rail */
@media (min-width: 769px) {
  .mega-menu:not([hidden]) .mega-menu__dialog {
    -webkit-animation: mega-flyout-in var(--dur) var(--ease-out);
    animation: mega-flyout-in var(--dur) var(--ease-out);
  }

  .mega-menu__panel[data-mega-panel="category"] .mega-menu__subs.is-active {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: var(--mega-rail-w);
    display: block;
    -webkit-animation: mega-subs-in var(--dur) var(--ease-out);
    animation: mega-subs-in var(--dur) var(--ease-out);
  }
}

@-webkit-keyframes mega-flyout-in {
  from {
    opacity: 0;
    -webkit-transform: translate3d(0, -0.45rem, 0);
    transform: translate3d(0, -0.45rem, 0);
  }
  to {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
}

@keyframes mega-flyout-in {
  from {
    opacity: 0;
    -webkit-transform: translate3d(0, -0.45rem, 0);
    transform: translate3d(0, -0.45rem, 0);
  }
  to {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
}

@-webkit-keyframes mega-subs-in {
  from {
    opacity: 0;
    -webkit-transform: translate3d(0, 0.35rem, 0);
    transform: translate3d(0, 0.35rem, 0);
  }
  to {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
}

@keyframes mega-subs-in {
  from {
    opacity: 0;
    -webkit-transform: translate3d(0, 0.35rem, 0);
    transform: translate3d(0, 0.35rem, 0);
  }
  to {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
  }
}

/* Mobile / touch drawer */
@media (max-width: 768px) {
  .mega-menu {
    position: fixed;
    inset: 0;
    top: 0;
    z-index: calc(var(--z-drawer) + 2);
    padding: 0;
    display: flex;
    justify-content: flex-start;
    width: 100%;
    height: 100%;
    height: 100dvh;
    max-height: 100dvh;
    min-height: 0;
    pointer-events: none;
  }

  .mega-menu[hidden] {
    display: none;
  }

  .mega-menu:not([hidden]) {
    pointer-events: none;
  }

  body.is-mega-open .mega-menu:not([hidden]) {
    pointer-events: auto;
  }

  .mega-menu__dialog {
    width: min(100%, 26rem);
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    min-height: 0;
    margin: 0;
    border-radius: 0;
    border: 0;
    border-right: 1px solid var(--color-border);
    box-shadow: var(--shadow-lift);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    overflow: hidden;
    -webkit-transform: translate3d(-100%, 0, 0);
    transform: translate3d(-100%, 0, 0);
    opacity: 0.92;
    transition:
      transform 0.52s cubic-bezier(0.16, 1, 0.3, 1),
      opacity 0.42s cubic-bezier(0.23, 1, 0.32, 1);
  }

  .mega-menu:not([hidden]) .mega-menu__dialog {
    will-change: transform, opacity;
  }

  /* transform: none when open — kept transform breaks iOS touch scroll */
  body.is-mega-open .mega-menu:not([hidden]) .mega-menu__dialog {
    -webkit-transform: none;
    transform: none;
    opacity: 1;
    will-change: auto;
  }

  .mega-menu__top {
    display: flex;
    flex-shrink: 0;
  }

  .mega-menu__tabs {
    padding-top: var(--sp-2);
    flex-shrink: 0;
  }

  /* Single scroll root (cart-drawer pattern) — nested tree scroll fails on iOS */
  .mega-menu__body {
    flex: 1 1 0%;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
  }

  .mega-menu__panel.is-active {
    display: block;
    flex: none;
    height: auto;
    min-height: 0;
    overflow: visible;
  }

  .mega-menu__panel[data-mega-panel="brand"].is-active {
    display: flex;
    flex-direction: column;
  }

  .mega-menu__panel[data-mega-panel="category"].is-active {
    --mega-rail-w: 100%;
  }

  .mega-menu__tree {
    flex: none;
    width: 100%;
    max-width: none;
    height: auto;
    max-height: none;
    min-height: 0;
    overflow: visible;
    border-right: 0;
    background: var(--color-surface);
  }

  .mega-menu__branch {
    border-bottom: 1px solid var(--color-border);
  }

  .mega-menu__branch.is-open {
    background: var(--color-surface-soft);
  }

  .mega-menu__cat {
    border-left-width: 0;
    border-left-style: none;
  }

  .mega-menu__cat.is-active {
    background: var(--color-surface);
    border-left-color: transparent;
    box-shadow: inset 3px 0 0 var(--color-coral);
  }

  .mega-menu__cat-chevron {
    transform: rotate(90deg);
  }

  .mega-menu__cat.is-active .mega-menu__cat-chevron {
    transform: rotate(-90deg);
  }

  .mega-menu__panel[data-mega-panel="category"] .mega-menu__subs,
  .mega-menu__panel[data-mega-panel="category"] .mega-menu__subs.is-active {
    position: static;
    inset: auto;
    display: block;
    padding: 0;
    background: var(--color-surface);
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition:
      max-height 0.48s cubic-bezier(0.16, 1, 0.3, 1),
      opacity 0.36s cubic-bezier(0.23, 1, 0.32, 1);
  }

  .mega-menu__panel[data-mega-panel="category"] .mega-menu__subs-inner {
    overflow: hidden;
    min-height: 0;
    padding-bottom: var(--sp-2);
  }

  .mega-menu__panel[data-mega-panel="category"] .mega-menu__link {
    padding-inline: 3.05rem var(--sp-4);
  }

  .mega-menu__panel[data-mega-panel="category"] .mega-menu__footer-link {
    margin: var(--sp-2) var(--sp-4) var(--sp-3);
    margin-inline-start: 3.05rem;
  }

  .mega-menu__content {
    flex: none;
    height: auto;
    max-height: none;
    min-height: 0;
    overflow: visible;
  }

  .mega-menu__sidebar {
    flex: 0 0 auto;
    max-width: none;
    max-height: none;
    overflow: visible;
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .mega-menu__sidebar--letters {
    flex-direction: row;
    flex-wrap: wrap;
    max-width: none;
    max-height: none;
    padding: var(--sp-2);
    gap: 0.25rem;
  }

  .mega-menu__letter {
    width: auto;
    min-width: 2.5rem;
    border-left-width: 0;
    border-radius: var(--radius-sm);
  }

  .mega-menu__letter.is-active {
    background: var(--color-coral-soft);
    color: var(--color-coral-deep);
  }

  .mega-menu__cols {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .mega-menu__link {
    min-height: 2.75rem;
    display: flex;
    align-items: center;
    padding-block: 0.55rem;
    border-bottom: 1px solid var(--color-border);
  }

  .mega-menu__backdrop {
    z-index: calc(var(--z-drawer) + 1);
  }
}

@media (max-width: 480px) {
  .mega-menu__dialog {
    width: 100%;
    border-right: 0;
  }

  .mega-menu__cat-name {
    font-size: 0.9375rem;
  }
}

/* iPhone / iOS Safari: touch momentum on the real scroll root */
@supports (-webkit-touch-callout: none) {
  @media (max-width: 768px) {
    .mega-menu {
      height: -webkit-fill-available;
      max-height: -webkit-fill-available;
    }

    .mega-menu__body {
      -webkit-overflow-scrolling: touch;
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  .mega-menu__dialog,
  .mega-menu__backdrop,
  .mega-menu__cat-chevron,
  .mega-menu__panel[data-mega-panel="category"] .mega-menu__subs {
    transition: none;
  }

  .mega-menu:not([hidden]) .mega-menu__dialog,
  .mega-menu__panel[data-mega-panel="category"] .mega-menu__subs.is-active {
    -webkit-animation: none;
    animation: none;
  }

  @media (max-width: 768px) {
    body.is-mega-open .mega-menu:not([hidden]) .mega-menu__dialog {
      opacity: 1;
      -webkit-transform: none;
      transform: none;
      will-change: auto;
    }
  }
}