/**
 * Simple Main Menu Module - Frontend styles
 * 
 * BEM naming: .wh-mainmenu__*
 * Desktop: horizontal bar with dropdown
 * Mobile:  hamburger → drawer with accordion
 *
 * @author    Woohoo.pl
 * @copyright 2025 Woohoo.pl
 * @license   https://opensource.org/licenses/AFL-3.0
 */

/* ═══════════════════════════════════════════
   Reset & base
   ═══════════════════════════════════════════ */
.wh-mainmenu,
.wh-mainmenu *,
.wh-mainmenu *::before,
.wh-mainmenu *::after {
    box-sizing: border-box;
}

.wh-mainmenu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.wh-mainmenu a {
    text-decoration: none;
    color: inherit;
}

.wh-mainmenu button {
    border: none;
    background: none;
    cursor: pointer;
    font: inherit;
    color: inherit;
    padding: 0;
}

/* ═══════════════════════════════════════════
   Desktop menu
   ═══════════════════════════════════════════ */
.wh-mainmenu__desktop {
    display: none;
    position: relative;
}

.wh-mainmenu__list {
    display: flex;
    align-items: stretch;
    gap: var(--wh-menu-gap, 0px);
    margin: 0;
    padding: 0;
}

.wh-mainmenu__item {
    position: static;
    display: flex;
    align-items: stretch;
}

.wh-mainmenu__link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    font-size: var(--wh-menu-font-size, 12px);
    font-weight: var(--wh-menu-font-weight, 500);
    color: var(--wh-menu-color, #40362E);
    line-height: 1.4;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}

.wh-mainmenu__link:hover,
.wh-mainmenu__link:focus-visible {
    color: var(--wh-menu-hover-color, #000);
    border-bottom-color: var(--wh-menu-hover-border, #40362E);
}

.wh-mainmenu__link--label {
    cursor: default;
}

.wh-mainmenu__item--active > .wh-mainmenu__link {
    color: var(--wh-menu-active-color, #000);
    border-bottom-color: var(--wh-menu-active-border, #40362E);
}

.wh-mainmenu__chevron {
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    transition: transform 0.25s ease;
    opacity: 0.6;
}

/* Dropdown – full-width (Hummingbird style) */
.wh-mainmenu__dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--wh-menu-dropdown-bg, #fff);
    border-top: 1px solid var(--wh-menu-dropdown-border, #e8e4df);
    border-bottom: 1px solid var(--wh-menu-dropdown-border, #e8e4df);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
    opacity: 0;
    visibility: hidden;
    transform: translateY(4px);
    transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
    pointer-events: none;
    /* Performance: skip layout/paint while hidden */
    contain: layout style;
    content-visibility: auto;
}

/* Open state */
.wh-mainmenu__item--open > .wh-mainmenu__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
    content-visibility: visible;
}

.wh-mainmenu__item--open > .wh-mainmenu__link .wh-mainmenu__chevron {
    transform: rotate(180deg);
}

/* Submenu row – 2-column layout */
.wh-mainmenu__submenu-row {
    display: flex;
    gap: 0;
    min-height: 100px;
}

/* Left column – menu links (vertical) */
.wh-mainmenu__submenu-left {
    display: flex;
    flex-direction: column;
    flex: 0 0 25%;
    max-width: 25%;
    padding: 12px 0;
    border-right: 1px solid var(--wh-menu-dropdown-border, #e8e4df);
}

.wh-mainmenu__submenu-link {
    display: block;
    padding: 9px 24px;
    font-size: var(--wh-menu-font-size, 12px);
    font-weight: var(--wh-menu-font-weight, 500);
    color: var(--wh-menu-color, #40362E);
    white-space: nowrap;
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: color 0.15s, background-color 0.15s, border-color 0.15s;
}

.wh-mainmenu__submenu-link:hover,
.wh-mainmenu__submenu-link:focus-visible {
    background-color: var(--wh-menu-dropdown-hover-bg, #f7f5f3);
    color: var(--wh-menu-hover-color, #000);
    border-left-color: var(--wh-menu-hover-border, #40362E);
}

.wh-mainmenu__submenu-link--active {
    color: var(--wh-menu-active-color, #000);
    font-weight: 600;
    background-color: var(--wh-menu-dropdown-active-bg, #f7f5f3);
    border-left-color: var(--wh-menu-active-border, #40362E);
}

.wh-mainmenu__submenu-link--label {
    cursor: default;
    color: var(--wh-menu-label-color, #888);
}

/* Right column – reserved for future content */
.wh-mainmenu__submenu-right {
    flex: 1;
    min-width: 0;
    padding: 12px 24px;
}

/* ═══════════════════════════════════════════
   Mobile: hamburger
   ═══════════════════════════════════════════ */
.wh-mainmenu__mobile {
    display: block;
}

.wh-mainmenu__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
}

.wh-mainmenu__hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background-color: currentColor;
    border-radius: 1px;
    transition: transform 0.3s, opacity 0.3s;
}

/* Hamburger → X animation */
.wh-mainmenu__hamburger[aria-expanded="true"] .wh-mainmenu__hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.wh-mainmenu__hamburger[aria-expanded="true"] .wh-mainmenu__hamburger-line:nth-child(2) {
    opacity: 0;
}
.wh-mainmenu__hamburger[aria-expanded="true"] .wh-mainmenu__hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ═══════════════════════════════════════════
   Mobile: overlay
   ═══════════════════════════════════════════ */
.wh-mainmenu__overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.wh-mainmenu__overlay--visible {
    opacity: 1;
    visibility: visible;
}

/* ═══════════════════════════════════════════
   Mobile: drawer
   ═══════════════════════════════════════════ */
.wh-mainmenu__drawer {
    position: fixed;
    top: 0;
    z-index: 9999;
    width: 300px;
    max-width: 85vw;
    height: 100%;
    background: var(--wh-menu-drawer-bg, #fff);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transition: transform 0.3s ease;
}

.wh-mainmenu__drawer--left {
    left: 0;
    transform: translateX(-100%);
}

.wh-mainmenu__drawer--right {
    right: 0;
    transform: translateX(100%);
}

.wh-mainmenu__drawer--open {
    transform: translateX(0);
}

/* Drawer header */
.wh-mainmenu__drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--wh-menu-drawer-border, #e5e5e5);
}

.wh-mainmenu__drawer-title {
    font-size: 16px;
    font-weight: 600;
}

.wh-mainmenu__drawer-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.wh-mainmenu__drawer-close:hover {
    background-color: var(--wh-menu-drawer-close-hover-bg, #f0f0f0);
}

/* Drawer list */
.wh-mainmenu__drawer-list {
    padding: 8px 0;
}

.wh-mainmenu__drawer-item {
    border-bottom: 1px solid var(--wh-menu-drawer-border, #f0f0f0);
}

.wh-mainmenu__drawer-row {
    display: flex;
    align-items: center;
}

.wh-mainmenu__drawer-link {
    display: block;
    flex: 1;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.15s, background-color 0.15s;
}

.wh-mainmenu__drawer-link:hover,
.wh-mainmenu__drawer-link:focus-visible {
    color: var(--wh-menu-hover-color, #2fb5d2);
}

.wh-mainmenu__drawer-link--label {
    cursor: default;
    color: var(--wh-menu-label-color, #888);
}

.wh-mainmenu__drawer-link--sub {
    padding-left: 36px;
    font-size: 14px;
    font-weight: 400;
}

.wh-mainmenu__drawer-item--active > .wh-mainmenu__drawer-row > .wh-mainmenu__drawer-link,
.wh-mainmenu__drawer-subitem--active > .wh-mainmenu__drawer-link {
    color: var(--wh-menu-active-color, #2fb5d2);
    font-weight: 600;
}

/* Accordion toggle */
.wh-mainmenu__accordion-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    transition: background-color 0.2s;
}

.wh-mainmenu__accordion-toggle:hover {
    background-color: var(--wh-menu-drawer-close-hover-bg, #f0f0f0);
}

.wh-mainmenu__accordion-toggle .wh-mainmenu__chevron {
    transition: transform 0.25s ease;
}

.wh-mainmenu__accordion-toggle[aria-expanded="true"] .wh-mainmenu__chevron {
    transform: rotate(180deg);
}

/* Accordion panel */
.wh-mainmenu__accordion-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.wh-mainmenu__accordion-panel[aria-hidden="false"] {
    max-height: 500px;
}

.wh-mainmenu__drawer-subitem {
    border-top: 1px solid var(--wh-menu-drawer-border, #f5f5f5);
}

/* ═══════════════════════════════════════════
   Body scroll lock
   ═══════════════════════════════════════════ */
body.wh-mainmenu-noscroll {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* ═══════════════════════════════════════════
   Responsive breakpoint
   ═══════════════════════════════════════════ */
@media (min-width: 769px) {
    .wh-mainmenu__desktop {
        display: block;
    }

    .wh-mainmenu__mobile {
        display: none;
    }
}

@media (max-width: 768px) {
    .wh-mainmenu__desktop {
        display: none;
    }

    .wh-mainmenu__mobile {
        display: block;
    }
}