/*
 * Solar Inverters single-control progressive navigation — V3.3.10.
 * Scope: the structurally marked Products > Solar Inverters subtree only.
 * No extra square controls are created. The existing menu row and its one
 * theme chevron disclose the next level; models occupy the panel to the right.
 */

nav.menu.tsi-nav-enhanced .tsi-nav-disclosure-link {
  cursor: pointer;
}

nav.menu.tsi-nav-enhanced .tsi-nav-disclosure-link::after {
  display: inline-block;
  transition: transform .18s ease;
  transform-origin: center;
}

nav.menu.tsi-nav-enhanced .tsi-nav-expanded > .tsi-nav-disclosure-link::after {
  transform: rotate(180deg);
}

@media (min-width: 1101px) {
  /* Keep the accepted connected Products panel and 980px geometry. */
  nav.menu .tsi-nav-products > .sub-menu {
    width: min(980px, calc(100vw - 240px));
    min-height: 326px;
  }

  nav.menu .tsi-nav-products > .sub-menu > li {
    width: 300px;
    max-width: 300px;
  }

  /* Static retains the accepted Products-panel containing block. */
  nav.menu.tsi-nav-enhanced .tsi-nav-inverters-root {
    position: static;
  }

  /* Stage 1: Products shows categories only. */
  nav.menu.tsi-nav-enhanced .tsi-nav-inverters-root > .sub-menu {
    position: absolute;
    inset: 10px 10px 10px 320px;
    width: auto;
    margin: 0;
    padding: 4px 4px 4px 18px;
    display: none;
    grid-template-columns: 190px minmax(0, 1fr);
    grid-auto-rows: minmax(48px, auto);
    align-content: start;
    overflow: auto;
    background: transparent;
    border: 0;
    border-left: 1px solid var(--line, #e3e9ec);
    border-radius: 0;
    box-shadow: none;
    opacity: 0;
    visibility: hidden;
    transform: none;
    pointer-events: none;
  }

  /* Stage 2: clicking the Solar Inverters row reveals the brand rail only. */
  nav.menu.tsi-nav-enhanced .tsi-nav-inverters-root.tsi-nav-expanded > .sub-menu {
    display: grid;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  nav.menu .tsi-nav-inverters-root > .sub-menu::before,
  nav.menu .tsi-nav-brand > .sub-menu::before {
    display: none;
  }

  /* Four brands form one clean vertical rail; there is no second button. */
  nav.menu.tsi-nav-enhanced .tsi-nav-inverters-root > .sub-menu > .tsi-nav-brand {
    position: static;
    grid-column: 1;
    width: auto;
    max-width: none;
    min-width: 0;
    align-self: start;
  }

  nav.menu.tsi-nav-enhanced .tsi-nav-brand > a {
    width: 100%;
    min-width: 0;
    font-weight: 850;
  }

  nav.menu.tsi-nav-enhanced .tsi-nav-inverters-root.tsi-nav-expanded > a,
  nav.menu.tsi-nav-enhanced .tsi-nav-brand.tsi-nav-expanded > a {
    color: var(--green, #389653);
    background: #f3f7f5;
    border-radius: 9px;
  }

  /* Stage 2 keeps every model panel hidden. */
  nav.menu.tsi-nav-enhanced .tsi-nav-brand > .sub-menu {
    position: absolute;
    inset: 4px 4px 4px 214px;
    width: auto;
    margin: 0;
    padding: 4px 8px 4px 18px;
    display: none;
    overflow: auto;
    background: transparent;
    border: 0;
    border-left: 1px solid var(--line, #e3e9ec);
    border-radius: 0;
    box-shadow: none;
    opacity: 0;
    visibility: hidden;
    transform: none;
    pointer-events: none;
  }

  /* Stage 3: clicking one brand row reveals only its models on the right. */
  nav.menu.tsi-nav-enhanced .tsi-nav-brand.tsi-nav-expanded > .sub-menu {
    display: block;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  nav.menu .tsi-nav-brand > .sub-menu > li {
    width: auto;
    max-width: none;
  }

  nav.menu .tsi-nav-brand > .sub-menu a {
    padding: 10px 12px !important;
    font-size: 13px;
    font-weight: 650;
  }
}

@media (max-width: 1100px) {
  /* The row itself discloses its submenu; no injected square control exists. */
  nav.menu.tsi-nav-enhanced .tsi-nav-products,
  nav.menu.tsi-nav-enhanced .tsi-nav-products li.menu-item-has-children {
    position: relative;
    display: block;
    align-items: initial;
  }

  nav.menu.tsi-nav-enhanced .tsi-nav-products > a,
  nav.menu.tsi-nav-enhanced .tsi-nav-products li.menu-item-has-children > a {
    width: 100%;
  }

  nav.menu.tsi-nav-enhanced .tsi-nav-products > .sub-menu,
  nav.menu.tsi-nav-enhanced .tsi-nav-products li.menu-item-has-children > .sub-menu {
    position: static;
    z-index: auto;
    width: 100%;
    display: none;
  }

  nav.menu.tsi-nav-enhanced .tsi-nav-products.tsi-nav-expanded > .sub-menu,
  nav.menu.tsi-nav-enhanced .tsi-nav-products li.tsi-nav-expanded > .sub-menu {
    display: block;
  }

  nav.menu.tsi-nav-enhanced .tsi-nav-inverters-root.tsi-nav-expanded > a,
  nav.menu.tsi-nav-enhanced .tsi-nav-brand.tsi-nav-expanded > a {
    color: var(--green, #389653);
    background: #f3f7f5;
    border-radius: 9px;
  }

  nav.menu.tsi-nav-enhanced .tsi-nav-brand > .sub-menu {
    margin-left: 10px;
    padding-left: 10px;
    border-left: 1px solid var(--line, #e3e9ec);
  }

  nav.menu.tsi-nav-enhanced .tsi-nav-disclosure-link:focus-visible {
    outline: 3px solid rgba(22, 152, 79, .28);
    outline-offset: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  nav.menu.tsi-nav-enhanced .tsi-nav-disclosure-link::after {
    transition: none;
  }
}