/* navbar.css - 可折叠导航栏样式 */

/* 导航栏容器 */
.navbar-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(90deg, #1a2a3a, #2c3e50);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 2000;
    transition: all 0.3s ease;
}

/* 折叠状态 */
.navbar-container.collapsed {
    height: 50px;
    overflow: hidden;
}

/* 展开状态 */
.navbar-container.expanded {
    height: 60px;
}

/* 导航栏主体 */
.navbar {
    display: flex;
    align-items: center;
    height: 60px;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 折叠按钮 */
.collapse-btn {
    background: transparent;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    margin-right: 15px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}

.collapse-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.collapse-btn::after {
    content: '≡';
    font-weight: bold;
}

.collapsed .collapse-btn::after {
    content: '≡';
}

/* 导航项容器 */
.nav-items {
    display: flex;
    align-items: center;
    gap: 30px;
    flex: 1;
    transition: opacity 0.3s ease;
}

.collapsed .nav-items {
    opacity: 0;
    pointer-events: none;
}

/* 导航项样式 */
.nav-item {
    color: #ecf0f1;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-size: 1rem;
    position: relative;
}

.nav-item:hover {
    background: rgba(52, 152, 219, 0.2);
    color: #3498db;
    transform: translateY(-2px);
}

/* 当前活动项指示器 */
.nav-item.active {
    color: #20a53a;
    background: rgba(32, 165, 58, 0.15);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: #20a53a;
    border-radius: 50%;
}

/* 任意门按钮在导航栏中的特殊样式 */
.nav-item.anydoor-nav-btn {
    background: linear-gradient(90deg, #20a53a, #3a86ff);
    color: white;
    font-weight: bold;
    padding: 8px 20px;
}

.nav-item.anydoor-nav-btn:hover {
    background: linear-gradient(90deg, #188830, #2a76e0);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(32, 165, 58, 0.3);
}

/* 占位项（未来的搜索和用户） */
.nav-item.placeholder {
    opacity: 0.3;
    cursor: not-allowed;
}

.nav-item.placeholder:hover {
    background: transparent;
    transform: none;
    color: #ecf0f1;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        padding: 0 15px;
    }
    
    .nav-items {
        gap: 15px;
    }
    
    .nav-item {
        padding: 6px 12px;
        font-size: 0.9rem;
    }
    
    .nav-item.anydoor-nav-btn {
        padding: 6px 15px;
    }
}

/* 折叠按钮消失动画 */
.collapse-btn-hiding {
    animation: hideButton 2s ease forwards;
}

@keyframes hideButton {
    0% { opacity: 1; }
    70% { opacity: 1; }
    100% { opacity: 0; visibility: hidden; }
}

/* 折叠区域（点击展开） */
.collapse-zone {
    position: absolute;
    top: 0;
    left: 0;
    width: 60px;
    height: 60px;
    z-index: 2001;
    cursor: pointer;
    display: none;
}

.collapsed .collapse-zone {
    display: block;
}

/* === 修复：折叠按钮功能 === */
.collapse-btn {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: all !important;
    animation: none !important;
}
/* === 修复：手机端布局优化 (完全替换原有的 media query) === */
@media (max-width: 768px) {
    .navbar {
        padding: 0 10px !important;
        height: 50px !important;
        /* 确保内容不溢出 */
        overflow: hidden; 
    }
    
    /* 让导航项容器占满剩余空间 */
    .nav-items {
        flex: 1;
        gap: 0 !important; /* 移除固定间距，改用 space-between */
        justify-content: space-between; /* 均匀分布 */
        margin-left: 10px; /* 和左边的折叠按钮拉开一点距离 */
        display: flex;
    }
    
    .nav-item {
        /* 减小内边距，确保一行能放下 */
        padding: 6px 8px !important;
        font-size: 0.85rem !important;
        white-space: nowrap !important;
        /* 移除可能的特殊样式影响 */
        background: transparent !important;
        color: inherit !important;
    }
    
    /* 针对手机端的任意门按钮做微调（不再需要特殊大按钮样式） */
    .nav-item#navbarAnydoorBtn {
        padding: 6px 8px !important;
        font-size: 0.85rem !important;
        background: none !important;
        color: inherit !important;
    }
    
    .collapse-btn {
        width: 32px !important;
        height: 32px !important;
        font-size: 18px !important;
        padding: 0 !important;
    }
}