/* menu.css - 菜单样式，包含暗黑模式支持 */

/* 导航菜单 - 默认(浅色)模式 */
.header-nav {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 15px;
}

.dropbtn {
    background-color: #5e35b1; 
    color: white; 
    border: none; 
    padding: 10px 20px; 
    border-radius: 20px; 
    cursor: pointer; 
    font-size: 15px; 
    display: flex; 
    align-items: center; 
    gap: 10px;
}

.btn-icon {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1); /* 白色图标 */
}

/* 导航下拉菜单 */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    margin-top: 8px;
    background-color: rgba(255, 255, 255, 0.8); /* 半透明背景 */
    backdrop-filter: blur(8px); /* 磨砂效果 */
    -webkit-backdrop-filter: blur(8px); /* Safari 兼容 */
    width: 100%; /* 与按钮宽度一致 */
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.1);
    z-index: 1;
    border-radius: 16px; /* 大圆角 */
    overflow: hidden; /* 确保内容不溢出圆角 */
    border: 1px solid rgba(255, 255, 255, 0.2); /* 细微边框增强立体感 */
}

.dropdown-content a {
    color: #333;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: center; /* 水平居中 */
    transition: all 0.2s ease; /* 平滑过渡效果 */
    font-size: 15px; /* 加大字号 */
    font-weight: 500; /* 适度加粗 */
}

.dropdown-content a:hover {
    background-color: rgba(94, 53, 177, 0.1); /* 与按钮颜色协调的hover效果 */
    text-decoration: none; /* 移除下划线 */
    color: #333; /* 保持黑色文字 */
}

.show {
    display: block;
}

/* 主题切换按钮样式 */
.theme-toggle {
    margin-right: 10px;
}

.theme-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.theme-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.theme-icon {
    width: 24px;
    height: 24px;
}

/* 暗黑模式样式 */
body.dark-mode .dropdown-content {
    background-color: rgba(33, 33, 33, 0.85); /* 暗色半透明背景 */
    border: 1px solid rgba(70, 70, 70, 0.3); /* 暗色边框 */
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.3);
}

body.dark-mode .dropdown-content a {
    color: #e0e0e0; /* 浅灰色文字，增强可读性 */
}

body.dark-mode .dropdown-content a:hover {
    background-color: rgba(94, 53, 177, 0.2); /* 更深的紫色，适合暗色背景 */
    color: #ffffff; /* 悬停时文字变白色 */
}

body.dark-mode .theme-btn:hover {
    background-color: rgba(255, 255, 255, 0.1); /* 暗模式下的悬停效果 */
}

/* 项目保存弹窗样式适配暗黑模式 */
body.dark-mode #project-save-dialog,
body.dark-mode #project-save-popup {
    background-color: #212121;
    color: #e0e0e0;
}

body.dark-mode .project-item {
    border-bottom-color: #444;
}

body.dark-mode .project-item:hover {
    background-color: #333;
}

body.dark-mode .project-item.selected {
    background-color: #3c2e63;
}

body.dark-mode input[type="text"],
body.dark-mode textarea,
body.dark-mode select {
    background-color: #333;
    border-color: #555;
    color: #e0e0e0;
}

body.dark-mode .popup-btn-secondary {
    background-color: #424242;
    border-color: #555;
    color: #e0e0e0;
}