/*container header*/
/*default .container-header*/
/*
    .container-header {
    z-index: 10;
    background-color: var(--cassiopeia-color-primary);
    background-image: linear-gradient(135deg, var(--cassiopeia-color-primary) 0%, var(--cassiopeia-color-hover) 100%);
    position: relative;
    box-shadow: inset 0 5px 5px #00000008;
}
*/



/*create a css grid like the one in use for the main part of the website and order the different elements of the header inside the grid. */
.container-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas: "top below" 
                         "logo logo" 
                         "nav nav";
}
.container-header .container-topbar {
    padding: .5em;
}
.container-header .container-topbar {
    grid-area: top;
}
.container-header .container-below-top {
    grid-area: below;
    justify-content: flex-end;
}
.container-header .grid-child:has(.navbar-brand) {
    grid-area: logo;
}
.container-header .container-nav {
    grid-area: nav;
}
@media (width >= 991.98px) {
    .container-header {
        grid-template-columns: 
            [full-start] minmax(0,1fr) 
            [main-start] repeat(4,minmax(0,19.875rem))
            [main-end] minmax(0,1fr)[full-end];
        grid-template-areas: ". logo nav nav nav .";
        gap: 0 1rem;
    }
    .container-header:has(.container-below-top, .container-topbar) {
        grid-template-areas: ". top top below below ." 
                             ". logo nav nav nav .";
    }
}

/* ===== 右上角语言切换器 ===== */
.language-switcher-top-right {
    position: fixed !important;
    right: 30px !important;
    top: 30px !important;
    z-index: 1000 !important;
    background: rgba(255, 255, 255, 0.95) !important;
    border-radius: 8px !important;
      margin: 0 !important;
    padding: 0 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    backdrop-filter: blur(5px) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    max-width: 200px !important;
    min-width: 120px !important;
    transition: all 0.3s ease !important;
}

/* 按钮样式 */
.language-switcher-top-right .mod-languages .btn {
    border-radius: 6px !important;
    width: 100% !important;
    padding: 8px 12px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    background: rgba(255, 255, 255, 0.8) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    color: #333 !important;
    font-size: 14px !important;
    transition: all 0.3s ease !important;
}

/* 按钮悬停效果 */
.language-switcher-top-right .mod-languages .btn:hover {
    background: rgba(255, 255, 255, 1) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1) !important;
}


/* 确保下拉菜单向下展开 */
.language-switcher-top-right .dropdown-menu {
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    right: auto !important;
    transform: none !important;
    margin-top: 5px !important;
    border-radius: 6px !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(5px) !important;
    padding: 5px 0 !important;
    width: 100% !important;
    min-width: 100% !important;
    max-width: 100vw !important;
    box-sizing: border-box !important;
}

/* 如果下拉菜单在右侧超出屏幕，让它向左对齐 */
.language-switcher-top-right .dropdown-menu.dropdown-menu-end {
    left: auto !important;
    right: 0 !important;
}

/* 下拉菜单项样式 */
.language-switcher-top-right .mod-languages ul {
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

.language-switcher-top-right .mod-languages li {
    margin: 0 !important;
}

.language-switcher-top-right .mod-languages a {
    display: block !important;
    padding: 8px 12px !important;
 /*   color: #333 !important; */
    text-decoration: none !important;
    font-size: 14px !important;
    transition: all 0.2s ease !important;
    border-radius: 4px !important;
    margin: 2px 5px !important;
}

/* 菜单项悬停效果 */
/*.language-switcher-top-right .mod-languages a:hover {
    background: rgba(0, 123, 255, 0.1) !important;
    color: #007bff !important;
}
*/
/* 当前语言高亮 */
.language-switcher-top-right .mod-languages .lang-active a {
    background: #109647 !important;
    color: white !important;
    font-weight: 500 !important;
}


/* 下拉箭头样式 */
.language-switcher-top-right .mod-languages .dropdown-toggle::after {
    margin-left: 8px !important;
    border-top-color: #666 !important;
    transition: transform 0.2s ease !important;
}

/* 右上角移动设备调整 */
@media (max-width: 768px) {
    .language-switcher-top-right {
        right: 20px !important;
        top: 20px !important;
        max-width: 180px !important;
        min-width: 140px !important;
        padding: 8px 12px !important;
    }
    
    .language-switcher-top-right .mod-languages .btn {
        padding: 6px 10px !important;
        font-size: 13px !important;
    }
    
    .language-switcher-top-right .mod-languages a {
        padding: 6px 10px !important;
        font-size: 13px !important;
    }
}

@media (max-width: 576px) {
    .language-switcher-top-right {
        right: 10px !important;
        top: 10px !important;
        max-width: 160px !important;
        min-width: 130px !important;
        padding: 6px 10px !important;
    }
    
    /* 在移动设备上确保下拉菜单不会太宽 */
    .language-switcher-top-right .dropdown-menu {
        max-width: 90vw !important;
    }
}

/* ===== 左下角语言切换器 ===== */
.language-switcher-bottom-left {
    position: fixed !important;
    left: 30px !important;
    bottom: 30px !important;
    z-index: 1000 !important;
    background: rgba(255, 255, 255, 0.95) !important;
    border-radius: 8px !important;
     margin: 0 !important;
    padding: 0 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    backdrop-filter: blur(5px) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    max-width: 200px !important;
    min-width: 120px !important;
    transition: all 0.3s ease !important;
}

/* 按钮样式 */
.language-switcher-bottom-left .mod-languages .btn {
    border-radius: 6px !important;
    width: 100% !important;
    padding: 8px 12px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    background: rgba(255, 255, 255, 0.8) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    color: #333 !important;
    font-size: 14px !important;
    transition: all 0.3s ease !important;
}

/* 按钮悬停效果 */
.language-switcher-bottom-left .mod-languages .btn:hover {
    background: rgba(255, 255, 255, 1) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1) !important;
}

/* 确保下拉菜单向上展开 */
.language-switcher-bottom-left .dropdown-menu {
    position: absolute !important;
    top: auto !important;
    bottom: 100% !important;
    left: 0 !important;
    transform: none !important;
    margin-bottom: 5px !important;
    border-radius: 6px !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(5px) !important;
    padding: 5px 0 !important;
    width: 100% !important;
    min-width: 100% !important;
}
/* 下拉菜单项样式 */
.language-switcher-bottom-left .mod-languages ul {
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

.language-switcher-bottom-left .mod-languages li {
    margin: 0 !important;
}

.language-switcher-bottom-left .mod-languages a {
    display: block !important;
    padding: 8px 12px !important;
    /*color: #333 !important;*/
    text-decoration: none !important;
    font-size: 14px !important;
    transition: all 0.2s ease !important;
    border-radius: 4px !important;
    margin: 2px 5px !important;
}
/* 菜单项悬停效果 */
/*.language-switcher-bottom-left .mod-languages a:hover {
    background: rgba(0, 123, 255, 0.1) !important;
    color: #007bff !important;
}
*/
/* 当前语言高亮 */
.language-switcher-bottom-left .mod-languages .lang-active a {
    background: #109647 !important;
    color: white !important;
    font-weight: 500 !important;
}


/* 下拉箭头样式 */
.language-switcher-bottom-left .mod-languages .dropdown-toggle::after {
    margin-left: 8px !important;
    border-top-color: #666 !important;
    transition: transform 0.2s ease !important;
}

/* 左下角移动设备调整 */
@media (max-width: 768px) {
    .language-switcher-bottom-left {
        left: 20px !important;
        bottom: 20px !important;
        max-width: 180px !important;
        min-width: 140px !important;
        padding: 8px 12px !important;
    }
    
    .language-switcher-bottom-left .mod-languages .btn {
        padding: 6px 10px !important;
        font-size: 13px !important;
    }
    
    .language-switcher-bottom-left .mod-languages a {
        padding: 6px 10px !important;
        font-size: 13px !important;
    }
}

@media (max-width: 576px) {
    .language-switcher-bottom-left {
        left: 10px !important;
        bottom: 10px !important;
        max-width: 160px !important;
        min-width: 130px !important;
        padding: 6px 10px !important;
    }
}

/* ===== 通用样式（两个版本共享） ===== */

/* 修复按钮行高 */
div.mod-languages .btn-group .btn {
    line-height: 1.5 !important;
}

/* 下拉箭头旋转动画 */
.language-switcher-bottom-left .dropdown-toggle.show::after,
.language-switcher-top-right .dropdown-toggle.show::after {
    transform: rotate(180deg) !important;
}

/* 悬停效果增强 */
.language-switcher-bottom-left:hover,
.language-switcher-top-right:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2) !important;
    transform: translateY(-2px) !important;
}


/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.language-switcher-bottom-left {
    animation: fadeInUp 0.5s ease-out;
}

.language-switcher-top-right {
    animation: fadeInDown 0.5s ease-out;
}