/**
 * 汉堡菜单样式
 * 配合logo重叠修复功能使用
 * 版本: 1.0.0
 */

/* 汉堡菜单按钮基础样式 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: 10px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle:hover {
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

/* 汉堡菜单线条样式 */
.hamburger-line {
    display: block;
    width: 20px;
    height: 2px;
    background-color: #333;
    margin: 2px 0;
    transition: all 0.3s ease;
    transform-origin: center;
}

/* 菜单打开时的动画 */
.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

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

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* 移动端导航菜单样式 */
.primary-navigation.mobile-hidden {
    display: none !important;
}

.primary-navigation.mobile-visible {
    display: block !important;
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    right: 0 !important;
    background: white !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1) !important;
    border: 1px solid #ddd !important;
    border-top: none !important;
    z-index: 1000 !important;
    padding: 10px 0 !important;
}

.primary-navigation.mobile-visible .menu {
    flex-direction: column !important;
    align-items: stretch !important;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

.primary-navigation.mobile-visible .menu-item {
    margin: 0 !important;
    border-bottom: 1px solid #eee !important;
}

.primary-navigation.mobile-visible .menu-item:last-child {
    border-bottom: none !important;
}

.primary-navigation.mobile-visible .menu-item a {
    display: block !important;
    padding: 12px 20px !important;
    color: #333 !important;
    text-decoration: none !important;
    font-size: 14px !important;
    transition: background-color 0.2s ease !important;
    white-space: normal !important;
    max-width: none !important;
    overflow: visible !important;
    text-overflow: clip !important;
}

.primary-navigation.mobile-visible .menu-item a:hover {
    background-color: #f5f5f5 !important;
}

/* 确保主导航容器支持汉堡菜单 */
.main-navigation {
    position: relative;
}

/* 小屏幕时显示汉堡菜单 */
@media screen and (max-width: 480px) {
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .primary-navigation:not(.mobile-visible) {
        display: none !important;
    }
}

/* 中等屏幕的菜单调整 */
@media screen and (min-width: 481px) and (max-width: 768px) {
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .primary-navigation {
        display: block !important;
    }
}

/* 覆盖层，点击外部关闭菜单 */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 999;
    display: none;
}

.mobile-menu-overlay.active {
    display: block;
}

/* 菜单项图标支持 */
.menu-item-icon {
    width: 16px;
    height: 16px;
    margin-right: 8px;
    vertical-align: middle;
}

/* 多语言支持 */
.primary-navigation.mobile-visible .lang-content {
    display: block !important;
}

/* 深色主题支持 */
@media (prefers-color-scheme: dark) {
    .primary-navigation.mobile-visible {
        background: #333 !important;
        border-color: #555 !important;
    }
    
    .primary-navigation.mobile-visible .menu-item a {
        color: #fff !important;
    }
    
    .primary-navigation.mobile-visible .menu-item a:hover {
        background-color: #555 !important;
    }
    
    .primary-navigation.mobile-visible .menu-item {
        border-bottom-color: #555 !important;
    }
    
    .hamburger-line {
        background-color: #fff;
    }
}

/* 动画效果增强 */
.primary-navigation.mobile-visible {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 无障碍支持 */
.mobile-menu-toggle:focus {
    outline: 2px solid #007cba;
    outline-offset: 2px;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line {
    background-color: #007cba;
}

/* 针对特定设备的调整 */
/* iPhone SE */
@media screen and (max-width: 375px) and (max-height: 667px) {
    .mobile-menu-toggle {
        width: 36px;
        height: 36px;
    }
    
    .hamburger-line {
        width: 18px;
    }
}

/* iPhone 12/13/14 */
@media screen and (max-width: 390px) and (max-height: 844px) {
    .primary-navigation.mobile-visible {
        max-height: 60vh;
        overflow-y: auto;
    }
}

/* 超小屏幕优化 */
@media screen and (max-width: 320px) {
    .primary-navigation.mobile-visible .menu-item a {
        padding: 10px 15px !important;
        font-size: 13px !important;
    }
}