/**
 * Navigation Styles
 *
 * Main navigation, dropdowns, mobile menu toggle, screen reader text,
 * and responsive navigation behavior.
 *
 * @package Mestariteema
 */

/* ============================================
   Desktop Navigation (non-hamburger)
   ============================================ */
@media screen and (min-width: 769px) {
    body:not(.nav-hamburger) .main-navigation {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    body:not(.nav-hamburger) .main-navigation ul {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        gap: 0;
    }

    body:not(.nav-hamburger) .main-navigation > ul {
        align-items: center;
    }

    body:not(.nav-hamburger) .main-navigation li {
        margin: 0;
        position: relative;
    }

    body:not(.nav-hamburger) .main-navigation > ul > li {
        display: flex;
        align-items: center;
    }

    body:not(.nav-hamburger) .main-navigation a {
        color: var(--nav-link-color);
        text-decoration: none;
        padding: 10px 18px;
        display: block;
        transition: color 0.3s ease;
        font-size: var(--nav-font-size, 15px);
        font-weight: var(--nav-font-weight, 500);
        text-transform: var(--nav-text-transform, uppercase);
        letter-spacing: 0.5px;
    }

    body:not(.nav-hamburger) .main-navigation > ul > li > a {
        display: inline-flex;
        align-items: center;
        line-height: 1.2;
    }

    body:not(.nav-hamburger) .main-navigation a:hover,
    body:not(.nav-hamburger) .main-navigation a:focus {
        color: var(--nav-hover-color);
    }

    body:not(.nav-hamburger) .main-navigation .current-menu-item > a,
    body:not(.nav-hamburger) .main-navigation .current-menu-parent > a {
        color: var(--nav-active-color);
    }

    /* Parent item chevron (desktop) */
    body:not(.nav-hamburger) .main-navigation > ul > .menu-item-has-children > a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    body:not(.nav-hamburger) .main-navigation > ul > .menu-item-has-children > a::after {
        content: '';
        display: inline-block;
        width: 5px;
        height: 5px;
        border-right: 2px solid currentColor;
        border-bottom: 2px solid currentColor;
        transform: translateY(-1px) rotate(-45deg);
        transform-origin: 50% 50%;
        transition: transform 0.25s ease;
    }

    body:not(.nav-hamburger):not(.mega-menu-click) .main-navigation > ul > .menu-item-has-children:hover > a::after,
    body:not(.nav-hamburger):not(.mega-menu-click) .main-navigation > ul > .menu-item-has-children:focus-within > a::after,
    body:not(.nav-hamburger):not(.mega-menu-click) .main-navigation > ul > .menu-item-has-children.toggled > a::after {
        transform: translateY(-1px) rotate(45deg);
    }

    /* Click-open mega menu mode: rotate chevron only when explicitly toggled. */
    body.mega-menu-click:not(.nav-hamburger) .main-navigation > ul > .menu-item-has-children.toggled > a::after {
        transform: translateY(-1px) rotate(45deg);
    }

    /* Dropdown menus */
    body:not(.nav-hamburger) .main-navigation .sub-menu {
        display: none;
        position: absolute;
        left: 0;
        top: calc(100% + var(--submenu-offset, 0px));
        min-width: var(--submenu-width, 220px);
        background: var(--submenu-bg);
        z-index: 1000;
        padding: 10px 0;
        border-radius: var(--submenu-radius, 0);
    }

    body:not(.nav-hamburger):not(.mega-menu-click) .main-navigation .menu-item-has-children:hover > .sub-menu,
    body:not(.nav-hamburger):not(.mega-menu-click) .main-navigation .menu-item-has-children.toggled > .sub-menu,
    body.mega-menu-click:not(.nav-hamburger) .main-navigation .menu-item-has-children.toggled > .sub-menu {
        display: block;
    }

    body:not(.nav-hamburger) .main-navigation .sub-menu li {
        display: block;
    }

    body:not(.nav-hamburger) .main-navigation .sub-menu a {
        padding: 10px 20px;
        white-space: nowrap;
        text-transform: none;
        font-size: var(--nav-font-size, 15px);
        color: var(--submenu-text);
    }

    body:not(.nav-hamburger) .main-navigation .sub-menu a .menu-item-description {
        display: block;
        margin-top: 4px;
        font-size: var(--menu-description-size, 13px);
        line-height: 1.35;
        font-weight: 400;
        letter-spacing: 0;
        text-transform: none;
        opacity: 0.9;
        white-space: normal;
    }

    body:not(.nav-hamburger) .main-navigation .sub-menu a:hover {
        background: var(--submenu-hover-bg, rgba(255, 255, 255, 0.1));
        color: var(--submenu-hover-text);
    }

    /* Nested dropdowns */
    body:not(.nav-hamburger) .main-navigation .sub-menu .sub-menu {
        left: 100%;
        top: 0;
    }
}

/* External link icon for target="_blank" nav items */
.nav-external-icon {
    display: inline-flex;
    align-items: center;
    margin-left: 5px;
    opacity: 0.75;
    vertical-align: middle;
}

.nav-external-icon svg {
    width: 0.8em;
    height: 0.8em;
}

/* Custom menu-item icons (image or class-based) */
.main-navigation a .menu-item-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1em;
    height: 1em;
    max-width: 20px;
    max-height: 20px;
    margin-right: 0.45em;
    vertical-align: -0.08em;
    flex-shrink: 0;
    overflow: hidden;
}

.main-navigation a .menu-item-icon img {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.main-navigation a .menu-item-icon-class {
    font-size: 1em;
    line-height: 1;
}

/* Dropdown toggle button (for mobile and touch) */
.dropdown-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
}

.dropdown-toggle:focus-visible {
    outline: 2px solid var(--scheme-1-accent);
    outline-offset: 2px;
    border-radius: 2px;
}

.dropdown-toggle .dropdown-icon {
    display: block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid var(--header-text);
    margin: 0 auto;
}

.dropdown-toggle[aria-expanded="true"] .dropdown-icon {
    border-top: none;
    border-bottom: 4px solid var(--header-text);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    position: relative;
    z-index: 1001;
    box-sizing: border-box;
}

.mobile-menu-toggle:focus-visible {
    outline: 2px solid var(--scheme-1-accent);
    outline-offset: 2px;
    border-radius: 2px;
}

.menu-toggle-icon {
    display: block;
    width: 28px;
    height: 20px;
    position: relative;
}

.menu-toggle-icon .line {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--header-text);
    position: absolute;
    left: 0;
    transition: all 0.3s ease;
}

.menu-toggle-icon .line:nth-child(1) {
    top: 0;
}

.menu-toggle-icon .line:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.menu-toggle-icon .line:nth-child(3) {
    bottom: 0;
}

/* Mobile menu toggle active state */
.mobile-menu-toggle.toggled .menu-toggle-icon .line:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.mobile-menu-toggle.toggled .menu-toggle-icon .line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.toggled .menu-toggle-icon .line:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
    overflow-wrap: normal !important;
}

.screen-reader-text:focus {
    background-color: #f1f1f1;
    border-radius: 3px;
    box-shadow: 0 0 2px 2px rgba(0, 0, 0, 0.6);
    clip: auto !important;
    color: #21759b;
    display: block;
    font-size: 14px;
    font-weight: bold;
    height: auto;
    left: 5px;
    line-height: normal;
    padding: 15px 23px 14px;
    text-decoration: none;
    top: 5px;
    width: auto;
    z-index: 100000;
}

/* ============================================
   Responsive — Mobile (max-width: 768px)
   ============================================ */
@media screen and (max-width: 768px) {
    /* Mobile header-right inside navigation */
    body:not(.nav-hamburger) .main-navigation .mobile-header-right {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0;
        padding: 0;
        margin-top: 0;
        border-top: none;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow-x: hidden;
    }
    
    body:not(.nav-hamburger) .main-navigation .mobile-header-social {
        display: flex;
        align-items: center;
        gap: 20px;
    }
    
    body:not(.nav-hamburger) .main-navigation .mobile-header-cta {
        display: inline-block;
        padding: var(--header-cta-padding, 12px 32px);
        background: var(--header-cta-bg);
        color: var(--header-cta-color);
        text-decoration: none;
        font-weight: var(--header-cta-font-weight, 600);
        font-size: var(--header-cta-font-size, 14px);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        transition: all 0.3s ease;
        border-style: solid;
        border-width: var(--header-cta-border-width, 0);
        border-color: var(--header-cta-border-color);
        border-radius: var(--header-cta-border-radius, 4px);
        white-space: nowrap;
        width: calc(100% - 24px);
        max-width: calc(100% - 24px);
        margin: 10px 12px 14px;
        box-sizing: border-box;
        text-align: center;
    }
    
    body:not(.nav-hamburger) .main-navigation .mobile-header-cta:hover {
        background: var(--header-cta-hover-bg);
        border-color: var(--header-cta-hover-bg);
        color: var(--header-cta-hover-color);
    }

    /* ============================================
       Mobile Drilldown Navigation (normal mode)
       ============================================ */
    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-source {
        display: none !important;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown {
        overflow-x: hidden;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-drilldown {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        position: relative;
        box-sizing: border-box;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-track {
        position: relative;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-panel {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        box-sizing: border-box;
        transform: translateX(100%);
        transition: transform 0.32s cubic-bezier(0.32, 0.72, 0, 1);
        pointer-events: none;
        visibility: hidden;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-panel.is-panel-active {
        position: relative;
        transform: translateX(0);
        pointer-events: auto;
        visibility: visible;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-panel.is-panel-behind {
        transform: translateX(0);
        visibility: hidden;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-panel-list {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-row {
        display: flex;
        align-items: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-panel-link {
        flex: 1;
        min-height: 44px;
        display: block;
        padding: var(--mobile-link-spacing, 10px) 20px;
        color: var(--header-text);
        text-decoration: none;
        font-size: var(--mobile-link-size, 16px);
        text-transform: var(--mobile-link-transform, none);
        white-space: normal;
        text-align: left;
        box-sizing: border-box;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-panel-link .menu-item-description {
        display: block;
        margin-top: 4px;
        font-size: var(--menu-description-size, 13px);
        line-height: 1.35;
        font-weight: 400;
        letter-spacing: 0;
        text-transform: none;
        opacity: 0.9;
        white-space: normal;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-chevron {
        width: 44px;

        border: none;
        border-left: 1px solid rgba(255, 255, 255, 0.1);
        background: transparent;
        color: var(--header-text);
        cursor: pointer;
        flex-shrink: 0;
        align-self: stretch;
        position: relative;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-chevron::before {
        content: '';
        display: block;
        width: 8px;
        height: 8px;
        border-top: 2px solid currentColor;
        border-right: 2px solid currentColor;
        transform: rotate(45deg);
        margin: 0 auto;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-back {
        width: 100%;
        min-height: 44px;
        border: none;
        background: rgba(255, 255, 255, 0.06);
        color: var(--header-text);
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 10px 15px;
        cursor: pointer;
        text-align: left;
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-back::before {
        content: '';
        width: 8px;
        height: 8px;
        border-left: 2px solid currentColor;
        border-bottom: 2px solid currentColor;
        transform: rotate(45deg);
    }

    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-panel-link:hover,
    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-panel-link:focus,
    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-chevron:hover,
    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-chevron:focus,
    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-back:hover,
    body:not(.nav-hamburger) .main-navigation.is-mobile-drilldown .mobile-nav-back:focus {
        background: transparent;
        outline: none;
    }

    /* Show dropdown toggles on mobile (legacy fallback only) */
    body:not(.nav-hamburger) .main-navigation .menu-item-has-children {
        position: relative;
    }
    
    body:not(.nav-hamburger) .main-navigation:not(.is-mobile-drilldown) .dropdown-toggle {
        display: block;
    }
    
    /* Mobile dropdowns -- legacy accordion fallback (non-drilldown only) */
    body:not(.nav-hamburger) .main-navigation:not(.is-mobile-drilldown) .sub-menu {
        position: static;
        display: block;
        max-height: 0;
        overflow: hidden;
        box-shadow: none;
        background: rgba(255, 255, 255, 0.05);
        padding: 0;
        margin-left: 10px;
        border-top: none;
        transition: max-height 0.2s ease;
    }
    
    body:not(.nav-hamburger) .main-navigation:not(.is-mobile-drilldown) .menu-item-has-children.toggled > .sub-menu {
        max-height: 2000px;
    }
    
    body:not(.nav-hamburger) .main-navigation:not(.is-mobile-drilldown) .sub-menu li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    body:not(.nav-hamburger) .main-navigation:not(.is-mobile-drilldown) .sub-menu a {
        padding: 10px 15px;
        font-size: var(--nav-font-size, 15px);
        color: rgba(255, 255, 255, 0.85);
    }

    body:not(.nav-hamburger) .main-navigation:not(.is-mobile-drilldown) .sub-menu a .menu-item-description {
        display: block;
        margin-top: 4px;
        font-size: var(--menu-description-size, 13px);
        line-height: 1.35;
        font-weight: 400;
        letter-spacing: 0;
        text-transform: none;
        opacity: 0.9;
        white-space: normal;
    }
    
    body:not(.nav-hamburger) .main-navigation:not(.is-mobile-drilldown) .sub-menu .sub-menu {
        margin-left: 10px;
        background: rgba(255, 255, 255, 0.03);
    }

    /* Mobile search form */
    body:not(.nav-hamburger) .main-navigation .mobile-search-form {
        display: flex;
        width: 100%;
        max-width: 100%;
        position: relative;
        padding: 10px 15px;
        box-sizing: border-box;
    }

    body:not(.nav-hamburger) .main-navigation .mobile-search-input {
        width: 100%;
        max-width: 100%;
        padding: 10px 40px 10px 14px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 6px;
        color: var(--header-text);
        font-size: 14px;
        outline: none;
        box-sizing: border-box;
        -webkit-appearance: none;
        appearance: none;
    }

    body:not(.nav-hamburger) .main-navigation .mobile-search-input::placeholder {
        color: rgba(255, 255, 255, 0.45);
    }

    body:not(.nav-hamburger) .main-navigation .mobile-search-input:focus {
        border-color: var(--scheme-1-accent);
    }

    body:not(.nav-hamburger) .main-navigation .mobile-search-submit {
        position: absolute;
        right: 22px;
        top: 50%;
        transform: translateY(-50%);
        background: none;
        border: none;
        color: rgba(255, 255, 255, 0.5);
        cursor: pointer;
        padding: 4px;
    }

    body:not(.nav-hamburger) .main-navigation .mobile-search-submit:hover {
        color: var(--scheme-1-accent);
    }
}

/* Tablet and up - hide dropdown toggles and mobile header elements (normal mode only) */
@media screen and (min-width: 769px) {
    body:not(.nav-hamburger) .dropdown-toggle {
        display: none !important;
    }
    
    /* Hide mobile header-right on desktop (normal mode only) */
    body:not(.nav-hamburger) .main-navigation .mobile-header-right {
        display: none !important;
    }
}

/* Responsive - Smaller Desktop */
@media screen and (max-width: 992px) and (min-width: 769px) {
    .header-social {
        gap: 12px;
    }

    .header-cta {
        padding: 8px 20px;
        font-size: 0.85em;
    }
}