/* ==========================================================
   Шапка и навигация сайта
   ========================================================== */

/*
|--------------------------------------------------------------------------
| Цвета: тёмная тема
|--------------------------------------------------------------------------
*/

:root[data-theme="dark"] .site-header {
    --header-bg: #111a29;
    --header-border: rgba(148, 163, 184, 0.18);
    --header-text: #eaf2ff;
    --header-muted: #a8b7cc;
    --header-hover: rgba(96, 165, 250, 0.14);
    --header-active: rgba(59, 130, 246, 0.22);
    --header-dropdown-bg: #162235;
    --header-shadow: rgba(0, 0, 0, 0.30);
}

/*
|--------------------------------------------------------------------------
| Цвета: светлая тема
|--------------------------------------------------------------------------
*/

:root[data-theme="light"] .site-header {
    --header-bg: #ffffff;
    --header-border: rgba(15, 23, 42, 0.12);
    --header-text: #172033;
    --header-muted: #5d6b80;
    --header-hover: rgba(37, 99, 235, 0.09);
    --header-active: rgba(37, 99, 235, 0.14);
    --header-dropdown-bg: #ffffff;
    --header-shadow: rgba(15, 23, 42, 0.16);
}

/*
|--------------------------------------------------------------------------
| Шапка
|--------------------------------------------------------------------------
*/

.site-header {
    position: relative;
    z-index: 10000;

    overflow: visible;

    color: var(--header-text);
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
}

.header-inner {
    position: relative;
    z-index: 10001;

    display: flex;
    align-items: center;
    gap: 20px;

    min-height: 68px;

    overflow: visible;
}

.site-logo {
    flex: 0 0 auto;

    color: var(--header-text);

    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.03em;
    text-decoration: none;
}

/*
|--------------------------------------------------------------------------
| Главное меню: компьютер
|--------------------------------------------------------------------------
*/

.main-navigation {
    position: relative;
    z-index: 10002;

    display: flex;
    flex: 1 1 auto;
    align-items: center;
    gap: 3px;

    margin-right: auto;

    overflow: visible;
}

.main-navigation > a,
.main-navigation-dropdown > summary {
    display: inline-flex;
    align-items: center;
    gap: 7px;

    min-height: 38px;
    padding: 8px 10px;

    cursor: pointer;

    color: var(--header-muted);
    background: transparent;
    border: 0;
    border-radius: 9px;

    font-family: inherit;
    font-size: 14px;
    font-weight: 650;
    line-height: 1;
    text-decoration: none;
    list-style: none;

    transition:
        color 0.18s ease,
        background 0.18s ease;
}

.main-navigation-dropdown > summary::-webkit-details-marker {
    display: none;
}

.main-navigation > a:hover,
.main-navigation-dropdown > summary:hover,
.main-navigation > a.is-active,
.main-navigation-dropdown > summary.is-active {
    color: var(--header-text);
    background: var(--header-hover);
}

.main-navigation > a.is-active,
.main-navigation-dropdown > summary.is-active {
    background: var(--header-active);
}

/*
|--------------------------------------------------------------------------
| Dropdown: компьютер
|--------------------------------------------------------------------------
*/

.main-navigation-dropdown {
    position: relative;
    z-index: 10003;

    overflow: visible;
}

.main-navigation-dropdown[open] {
    z-index: 10010;
}

.main-navigation-dropdown-arrow {
    display: inline-block;

    color: currentColor;

    font-size: 12px;

    transition: transform 0.18s ease;
}

.main-navigation-dropdown[open]
.main-navigation-dropdown-arrow {
    transform: rotate(180deg);
}

.main-navigation-dropdown-menu {
    position: absolute;
    z-index: 10020;
    top: 100%;
    left: 0;

    display: grid;
    grid-template-columns: minmax(260px, 320px);
    gap: 4px;

    min-width: 260px;
    padding: 8px;

    background: var(--header-dropdown-bg);
    border: 1px solid var(--header-border);
    border-radius: 14px;

    box-shadow:
        0 18px 38px var(--header-shadow);
}

.main-navigation-dropdown-menu a {
    display: flex;
    align-items: flex-start;
    gap: 10px;

    padding: 10px;

    color: var(--header-text);
    border-radius: 10px;

    text-decoration: none;

    transition: background 0.18s ease;
}

.main-navigation-dropdown-menu a:hover,
.main-navigation-dropdown-menu a.is-active {
    background: var(--header-hover);
}

.main-navigation-dropdown-icon {
    display: grid;
    flex: 0 0 auto;
    place-items: center;

    width: 30px;
    height: 30px;

    color: var(--header-text);
    background: var(--header-active);
    border-radius: 8px;
}

.main-navigation-dropdown-menu strong,
.main-navigation-dropdown-menu small {
    display: block;
}

.main-navigation-dropdown-menu strong {
    font-size: 13px;
    line-height: 1.35;
}

.main-navigation-dropdown-menu small {
    margin-top: 2px;

    color: var(--header-muted);

    font-size: 12px;
    line-height: 1.35;
}

/*
|--------------------------------------------------------------------------
| Контент страницы всегда ниже меню
|--------------------------------------------------------------------------
*/

main,
.site-main,
.page-content,
.site-content,
.site-footer {
    position: relative;
    z-index: 1;
}

/*
|--------------------------------------------------------------------------
| Кнопка мобильного меню
|--------------------------------------------------------------------------
*/

.menu-toggle {
    display: none;
}

/*
|--------------------------------------------------------------------------
| Мобильное меню
|--------------------------------------------------------------------------
*/

@media (max-width: 900px) {
    .header-inner {
        flex-wrap: wrap;
        gap: 12px;

        min-height: 62px;
    }

    .menu-toggle {
        display: inline-flex;
        flex: 0 0 auto;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;

        width: 42px;
        height: 42px;
        margin-left: auto;
        padding: 0;

        cursor: pointer;

        color: var(--header-text);
        background: transparent;
        border: 1px solid var(--header-border);
        border-radius: 10px;
    }

    .menu-toggle span {
        display: block;

        width: 19px;
        height: 2px;

        background: currentColor;
        border-radius: 99px;

        transition:
            transform 0.18s ease,
            opacity 0.18s ease;
    }

    .menu-toggle.is-open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .menu-toggle.is-open span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.is-open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .main-navigation {
        position: absolute;
        z-index: 10030;
        top: calc(100% + 8px);
        right: 0;
        left: 0;

        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 3px;

        box-sizing: border-box;
        width: 100%;
        margin: 0;
        padding: 10px;

        background: var(--header-dropdown-bg);
        border: 1px solid var(--header-border);
        border-radius: 14px;

        box-shadow:
            0 18px 38px var(--header-shadow);
    }

    .main-navigation.is-open {
        display: flex;
    }

    .main-navigation > a,
    .main-navigation-dropdown > summary {
        display: flex;
        justify-content: space-between;

        box-sizing: border-box;
        width: 100%;
        min-height: 42px;
        padding: 10px 12px;
    }

    .main-navigation-dropdown {
        width: 100%;
    }

    .main-navigation-dropdown-menu {
        position: static;

        grid-template-columns: minmax(0, 1fr);

        min-width: 0;
        margin: 3px 0 5px;
        padding: 5px;

        background: rgba(127, 127, 127, 0.05);
        border: 0;
        border-radius: 10px;
        box-shadow: none;
    }
}

/* ==========================================================
   Финальное исправление слоёв меню поверх всех модулей
   ========================================================== */

/*
|--------------------------------------------------------------------------
| Шапка всегда самый верхний слой сайта
|--------------------------------------------------------------------------
*/

.site-header {
    position: relative !important;
    z-index: 2147483647 !important;

    overflow: visible !important;
}

.site-header .container,
.site-header .header-inner {
    position: relative !important;
    z-index: 2147483647 !important;

    overflow: visible !important;
}

.site-header .main-navigation {
    position: relative !important;
    z-index: 2147483647 !important;

    overflow: visible !important;
}

.site-header .main-navigation-dropdown {
    position: relative !important;
    z-index: 2147483647 !important;

    overflow: visible !important;
}

.site-header .main-navigation-dropdown[open] {
    z-index: 2147483647 !important;
}

.site-header .main-navigation-dropdown-menu {
    position: absolute !important;
    z-index: 2147483647 !important;

    overflow: visible !important;
}

/*
|--------------------------------------------------------------------------
| Основное содержимое не должно создавать слой выше шапки
|--------------------------------------------------------------------------
*/

main,
.site-main,
.page-content,
.site-content,
.site-footer,
.wall-feed,
.wall-post,
.wall-create-card,
.wall-detail-main,
.wall-detail-post,
.wall-comments,
.home-section,
.home-article-card,
.home-wall-card,
.home-review-card {
    z-index: auto !important;
}

/*
|--------------------------------------------------------------------------
| Если у карточек есть transform, filter или opacity,
| они могут создавать собственный stacking context.
|--------------------------------------------------------------------------
*/

.wall-post,
.wall-create-card,
.wall-detail-post,
.wall-comments,
.home-article-card,
.home-wall-card,
.home-review-card {
    position: relative;
}

/*
|--------------------------------------------------------------------------
| На телефоне мобильное меню также поверх всего
|--------------------------------------------------------------------------
*/

@media (max-width: 900px) {
    .site-header .main-navigation {
        z-index: 2147483647 !important;
    }
}