/**
 * 国际化相关样式
 * 语言切换按钮和多语言界面样式
 */

/* 语言切换按钮 */
.language-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    padding: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.language-switcher:hover {
    opacity: 1;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(var(--brand-accent-rgb), 0.2);
    border-radius: 25px;
    color: #6c5ce7;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(var(--brand-accent-rgb), 0.1);
}

.language-btn:hover {
    background: rgba(var(--brand-accent-rgb), 0.1);
    border-color: #6c5ce7;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--brand-accent-rgb), 0.2);
}

.language-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(var(--brand-accent-rgb), 0.2);
}

.language-btn i {
    font-size: 16px;
    color: #6c5ce7;
}

.language-btn span {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    letter-spacing: 0.5px;
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
    .language-btn {
        background: rgba(30, 30, 30, 0.95);
        border-color: rgba(var(--brand-accent-rgb), 0.3);
        color: #a29bfe;
    }
    
    .language-btn:hover {
        background: rgba(var(--brand-accent-rgb), 0.2);
        border-color: #a29bfe;
    }
    
    .language-btn i {
        color: #a29bfe;
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .language-switcher {
        top: 15px;
        right: 15px;
    }
    
    .language-btn {
        padding: 8px 12px;
        font-size: 13px;
        border-radius: 20px;
    }
    
    .language-btn i {
        font-size: 14px;
    }
}

/* 小屏幕设备 */
@media (max-width: 480px) {
    .language-switcher {
        top: 10px;
        right: 10px;
    }
    
    .language-btn {
        padding: 6px 10px;
        font-size: 12px;
        gap: 6px;
    }
    
    .language-btn span {
        display: none; /* 在小屏幕上只显示图标 */
    }
}

/* 语言切换动画 */
.language-switching {
    opacity: 0.7;
    pointer-events: none;
}

.language-switching .language-btn {
    transform: scale(0.95);
}

/* RTL语言支持 */
[dir="rtl"] .language-switcher {
    left: 20px;
    right: auto;
}

[dir="rtl"] .language-btn {
    flex-direction: row-reverse;
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    .language-btn {
        background: var(--bg-secondary);
        border: 2px solid #6c5ce7;
        color: #6c5ce7;
    }
    
    .language-btn:hover {
        background: #6c5ce7;
        color: #ffffff;
    }
}

/* 减少动画模式 */
@media (prefers-reduced-motion: reduce) {
    .language-btn {
        transition: none;
    }
    
    .language-btn:hover {
        transform: none;
    }
}

/* 语言切换提示 */
.language-tooltip {
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.language-btn:hover .language-tooltip {
    opacity: 1;
}

/* 语言选择下拉菜单（可选功能） */
.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-secondary);
    border: 1px solid rgba(var(--brand-accent-rgb), 0.2);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    min-width: 120px;
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    font-size: 14px;
    color: #333;
}

.language-option:hover {
    background: rgba(var(--brand-accent-rgb), 0.1);
}

.language-option.active {
    background: rgba(var(--brand-accent-rgb), 0.15);
    color: #6c5ce7;
    font-weight: 500;
}

.language-option .flag {
    width: 20px;
    height: 15px;
    border-radius: 2px;
    background-size: cover;
    background-position: center;
}

.language-option .flag.zh {
    background-image: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjAiIGhlaWdodD0iMTUiIHZpZXdCb3g9IjAgMCAyMCAxNSIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KPHJlY3Qgd2lkdGg9IjIwIiBoZWlnaHQ9IjE1IiBmaWxsPSIjREUyOTEwIi8+CjxwYXRoIGQ9Ik0zIDNMMy41IDQuNUw1IDRMNCAxTDMgM1oiIGZpbGw9IiNGRkRFMDAiLz4KPHA+');
}

.language-option .flag.en {
    background-image: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjAiIGhlaWdodD0iMTUiIHZpZXdCb3g9IjAgMCAyMCAxNSIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj4KPHJlY3Qgd2lkdGg9IjIwIiBoZWlnaHQ9IjE1IiBmaWxsPSIjMDEyMTY5Ii8+CjxyZWN0IHk9IjEiIHdpZHRoPSIyMCIgaGVpZ2h0PSIxIiBmaWxsPSJ3aGl0ZSIvPgo8L3N2Zz4=');
}