/**
 * 主题: 纸鸢图床ZIH
 * 开发者: 白木
 * 开发者的博客: https://gl.baimu.live/
 *
 * 左侧竖排导航样式
 *
 * @package Zhiyuan_Imgzus
 */

/* 🧭 为左侧导航预留页面空间 */
body.cyber-theme {
    padding-left: calc(
        var(--nav-rail-offset-inline) +
        var(--nav-rail-width) +
        var(--nav-content-gap)
    );
}

/* 🪟 左侧毛玻璃导航栏 */
.site-header {
    top: var(--nav-rail-offset-block);
    right: auto;
    bottom: var(--nav-rail-offset-block);
    left: var(--nav-rail-offset-inline);
    width: var(--nav-rail-width);
    padding: 0;
    overflow: visible;
    background: var(--nav-rail-bg);
    border: 0.0625rem solid var(--nav-rail-border);
    border-radius: var(--radius-2xl);
    box-shadow: 0 0.75rem 2rem var(--nav-shadow);
    backdrop-filter: blur(1rem) saturate(160%);
    -webkit-backdrop-filter: blur(1rem) saturate(160%);
}

.site-header .header-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    width: 100%;
    max-width: none;
    height: 100%;
    padding: 0.75rem 0.5rem;
    gap: 0.75rem;
    overflow: visible;
}

.site-header .site-branding {
    flex: 0 0 auto;
}

.site-header .site-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
}

.site-header .site-logo-img {
    width: 2.75rem;
    height: 2.75rem;
    object-fit: contain;
}

.site-header .site-name {
    display: none;
}

.main-navigation {
    position: relative;
    z-index: 1;
    display: flex;
    flex: 1 1 auto;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-width: 0;
    min-height: 0;
    padding: 0;
    overflow: visible;
    background: oklch(0 0 0 / 0);
    border: 0;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.main-navigation .nav-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-height: calc(100vh - 1.5rem);
    margin: 0;
    padding: 0;
    gap: 0.625rem;
    overflow: visible;
    list-style: none;
    background: oklch(0 0 0 / 0);
    border: 0;
}

.main-navigation .nav-menu > li {
    position: relative;
    display: block;
    width: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
}

.main-navigation .nav-menu > li::before {
    display: none;
}

.main-navigation .nav-menu > li > a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.875rem;
    height: 2.875rem;
    margin: 0 auto;
    padding: 0;
    color: var(--nav-item-color);
    text-decoration: none;
    text-shadow: none;
    background: oklch(0 0 0 / 0);
    border: 0.0625rem solid var(--nav-item-border);
    border-radius: var(--radius-lg);
    transition:
        color var(--transition-fast),
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
}

.main-navigation .nav-menu > li > a:hover,
.main-navigation .nav-menu > li > a:focus-visible,
.main-navigation .nav-menu > .current-menu-item > a,
.main-navigation .nav-menu > .current_page_item > a,
.main-navigation .nav-menu > .current-menu-ancestor > a {
    color: var(--nav-item-active);
    background: var(--nav-item-hover-bg);
    border-color: var(--nav-item-active);
    box-shadow:
        0 0 0 0.1875rem var(--nav-focus),
        0 0.5rem 1.25rem var(--nav-shadow);
    transform: translateY(-0.0625rem);
}

.main-navigation .nav-menu > li > a:focus-visible {
    outline: 0.125rem solid var(--nav-item-active);
    outline-offset: 0.1875rem;
}

.main-navigation .nav-menu-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    font-family: dashicons;
    font-size: 1.375rem;
    line-height: 1;
}

.main-navigation .nav-menu-icon--image {
    overflow: hidden;
    border-radius: var(--radius-sm);
}

.main-navigation .nav-menu-icon--image img {
    display: block;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
}

.main-navigation .nav-menu-icon::before {
    display: block;
    width: auto;
    height: auto;
    font-size: inherit;
    line-height: 1;
}

/* ♿ 保留菜单名称供屏幕阅读器读取 */
.main-navigation .nav-menu-label {
    position: absolute;
    width: 0.0625rem;
    height: 0.0625rem;
    margin: -0.0625rem;
    padding: 0;
    overflow: hidden;
    white-space: nowrap;
    border: 0;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
}

/* 💬 菜单名称气泡 */
.main-navigation .nav-menu > li > a::before,
.main-navigation .nav-menu > li > a::after {
    position: absolute;
    top: 50%;
    z-index: 104;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
        opacity var(--transition-fast),
        transform var(--transition-fast),
        visibility var(--transition-fast);
}

.main-navigation .nav-menu > li > a::before {
    content: '';
    left: calc(100% + 0.4375rem);
    width: 0.5rem;
    height: 0.5rem;
    background: var(--nav-tooltip-bg);
    transform: translate(-0.25rem, -50%) rotate(45deg);
}

.main-navigation .nav-menu > li > a::after {
    content: attr(data-label);
    left: calc(100% + 0.6875rem);
    max-width: min(
        16rem,
        calc(100vw - var(--nav-rail-offset-inline) - var(--nav-rail-width) - 2rem)
    );
    padding: 0.5rem 0.75rem;
    color: var(--nav-tooltip-text);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: 0.02em;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    background: var(--nav-tooltip-bg);
    border-radius: var(--radius-md);
    box-shadow: 0 0.5rem 1.5rem var(--nav-shadow);
    transform: translate(-0.25rem, -50%);
}

.main-navigation .nav-menu > li > a:hover::before,
.main-navigation .nav-menu > li > a:hover::after,
.main-navigation .nav-menu > li > a:focus-visible::before,
.main-navigation .nav-menu > li > a:focus-visible::after {
    opacity: 1;
    visibility: visible;
}

.main-navigation .nav-menu > li > a:hover::before,
.main-navigation .nav-menu > li > a:focus-visible::before {
    transform: translate(0, -50%) rotate(45deg);
}

.main-navigation .nav-menu > li > a:hover::after,
.main-navigation .nav-menu > li > a:focus-visible::after {
    transform: translate(0, -50%);
}

/* ⚠️ 未配置菜单时显示原始提示文案 */
.main-navigation .nav-menu-notice {
    position: absolute;
    top: 50%;
    left: calc(100% + 1rem);
    z-index: 104;
    width: max-content;
    max-width: min(
        18rem,
        calc(100vw - var(--nav-rail-offset-inline) - var(--nav-rail-width) - 2.5rem)
    );
    padding: 0.625rem 0.875rem;
    color: var(--nav-tooltip-text);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.4;
    white-space: normal;
    background: var(--nav-tooltip-bg);
    border: 0.0625rem solid var(--nav-rail-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 0.5rem 1.5rem var(--nav-shadow);
    transform: translateY(-50%);
}

.main-navigation .nav-menu-notice::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -0.3125rem;
    width: 0.625rem;
    height: 0.625rem;
    background: var(--nav-tooltip-bg);
    border-bottom: 0.0625rem solid var(--nav-rail-border);
    border-left: 0.0625rem solid var(--nav-rail-border);
    transform: translateY(-50%) rotate(45deg);
}

/* 🎛️ 左侧导航底部操作区 */
.site-header .header-actions {
    display: flex;
    flex: 0 0 auto;
    flex-direction: column;
    align-items: center;
    width: 100%;
    gap: 0.625rem;
}

.site-header .action-btn,
.site-header .user-avatar {
    width: 2.875rem;
    height: 2.875rem;
}

/* 💬 上传 / 搜索按钮悬停气泡，与菜单名称气泡一致 */
.site-header .upload-btn,
.site-header .search-toggle,
.site-header .category-rail-toggle {
    position: relative;
    overflow: visible;
}

.site-header .upload-btn::before,
.site-header .upload-btn::after,
.site-header .search-toggle::before,
.site-header .search-toggle::after,
.site-header .category-rail-toggle::before,
.site-header .category-rail-toggle::after {
    position: absolute;
    top: 50%;
    z-index: 104;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
        opacity var(--transition-fast),
        transform var(--transition-fast),
        visibility var(--transition-fast);
}

.site-header .upload-btn::before,
.site-header .search-toggle::before,
.site-header .category-rail-toggle::before {
    content: '';
    left: calc(100% + 0.4375rem);
    width: 0.5rem;
    height: 0.5rem;
    background: var(--nav-tooltip-bg);
    transform: translate(-0.25rem, -50%) rotate(45deg);
}

.site-header .upload-btn::after,
.site-header .search-toggle::after,
.site-header .category-rail-toggle::after {
    content: attr(data-label);
    left: calc(100% + 0.6875rem);
    max-width: min(
        16rem,
        calc(100vw - var(--nav-rail-offset-inline) - var(--nav-rail-width) - 2rem)
    );
    padding: 0.5rem 0.75rem;
    color: var(--nav-tooltip-text);
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: 0.02em;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
    background: var(--nav-tooltip-bg);
    border-radius: var(--radius-md);
    box-shadow: 0 0.5rem 1.5rem var(--nav-shadow);
    transform: translate(-0.25rem, -50%);
}

.site-header .upload-btn:hover::before,
.site-header .upload-btn:hover::after,
.site-header .upload-btn:focus-visible::before,
.site-header .upload-btn:focus-visible::after,
.site-header .search-toggle:hover::before,
.site-header .search-toggle:hover::after,
.site-header .search-toggle:focus-visible::before,
.site-header .search-toggle:focus-visible::after,
.site-header .category-rail-toggle:hover::before,
.site-header .category-rail-toggle:hover::after,
.site-header .category-rail-toggle:focus-visible::before,
.site-header .category-rail-toggle:focus-visible::after {
    opacity: 1;
    visibility: visible;
}

.site-header .upload-btn:hover::before,
.site-header .upload-btn:focus-visible::before,
.site-header .search-toggle:hover::before,
.site-header .search-toggle:focus-visible::before,
.site-header .category-rail-toggle:hover::before,
.site-header .category-rail-toggle:focus-visible::before {
    transform: translate(0, -50%) rotate(45deg);
}

.site-header .upload-btn:hover::after,
.site-header .upload-btn:focus-visible::after,
.site-header .search-toggle:hover::after,
.site-header .search-toggle:focus-visible::after,
.site-header .category-rail-toggle:hover::after,
.site-header .category-rail-toggle:focus-visible::after {
    transform: translate(0, -50%);
}

.site-header .btn-login {
    display: grid;
    place-items: center;
    width: 2.875rem;
    height: 2.875rem;
    padding: 0;
    font-size: 0.6875rem;
    letter-spacing: 0;
}

.site-header .user-dropdown {
    top: auto;
    right: auto;
    bottom: 0;
    left: calc(100% + 0.75rem);
    margin: 0;
    z-index: 105;
    transform: translateX(-0.625rem) scale(0.95);
    transform-origin: left bottom;
}

.site-header .user-menu::before {
    top: 0;
    right: auto;
    bottom: 0;
    left: 100%;
    width: 0.75rem;
    height: auto;
}

.site-header .user-menu:hover .user-dropdown,
.site-header .user-dropdown.active {
    transform: translateX(0) scale(1);
}

/* 🎯 管理轮盘与页脚触发按钮共用底部偏移，保持平齐 */
.admin-wheel {
    bottom: var(--fab-offset-bottom);
    left: calc(
        var(--nav-rail-offset-inline) +
        var(--nav-rail-width) +
        1.5rem
    );
}

.footer-trigger,
.footer-ripple-bg {
    bottom: var(--fab-offset-bottom);
}

@media (max-width: 768px) {
    body.cyber-theme {
        --nav-rail-width: var(--nav-rail-width-mobile);
        --nav-rail-offset-inline: var(--nav-rail-offset-mobile);
        --nav-rail-offset-block: var(--nav-rail-offset-mobile);
        --nav-content-gap: 0.5rem;
    }

    .site-header .header-inner {
        padding: 0.625rem 0.375rem;
        gap: 0.5rem;
    }

    .site-header .site-logo {
        width: 2.5rem;
        height: 2.5rem;
    }

    .site-header .site-logo-img {
        width: 2.375rem;
        height: 2.375rem;
    }

    .main-navigation .nav-menu {
        gap: 0.5rem;
    }

    .main-navigation .nav-menu > li > a {
        width: 2.5rem;
        height: 2.5rem;
    }

    .main-navigation .nav-menu-icon {
        font-size: 1.25rem;
    }

    .site-header .action-btn,
    .site-header .user-avatar,
    .site-header .btn-login {
        width: 2.5rem;
        height: 2.5rem;
    }

    .admin-wheel {
        bottom: var(--fab-offset-bottom-mobile);
        left: calc(
            var(--nav-rail-offset-inline) +
            var(--nav-rail-width) +
            1rem
        );
    }

    .footer-trigger,
    .footer-ripple-bg {
        bottom: var(--fab-offset-bottom-mobile);
    }
}