/*
 * 头部专用样式 - 1HPCS
 * 包含所有导航栏和头部警告相关样式
 * 此文件替代了原有的navbar.css
 * 最后更新: 2023-06-16
 */

.navbar {
    background-color: white !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.04) !important;
    padding: 0.75rem 0 !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 1000 !important;
    border-bottom: 1px solid var(--gray-200) !important;
}

.navbar .container {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    width: 100% !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
}

.navbar-brand {
    display: flex !important;
    align-items: center !important;
    margin-right: 2rem !important;
}

.navbar-brand img {
    height: 40px !important;
    width: auto !important;
    object-fit: contain !important;
    transition: all 0.2s ease !important;
}

.navbar-brand:hover img {
    transform: scale(1.05) !important;
}

.navbar-toggler {
    border: none !important;
    padding: 0.5rem !important;
    font-size: 1.25rem !important;
    color: var(--gray-600) !important;
    background-color: transparent !important;
}

.navbar-toggler:focus {
    box-shadow: none !important;
    outline: none !important;
}

.navbar-collapse {
    flex-grow: 1 !important;
}

.navbar-nav {
    margin-left: auto !important;
    align-items: center !important;
    gap: 0.25rem !important;
}

.nav-item {
    position: relative !important;
    display: flex !important;
    align-items: center !important;
}

.nav-link {
    color: var(--gray-700) !important;
    font-weight: 500 !important;
    padding: 0.5rem 0.75rem !important;
    border-radius: 0.5rem !important;
    transition: all 0.2s !important;
    white-space: nowrap !important;
}

.nav-link:hover {
    color: var(--primary) !important;
    background-color: var(--gray-50) !important;
}

.nav-link.active {
    color: var(--primary) !important;
    background-color: var(--gray-50) !important;
}

/* 用户下拉菜单 */
.dropdown-toggle {
    padding: 0.5rem 0.75rem !important;
    border-radius: 0.5rem !important;
    background: transparent !important;
    border: none !important;
    color: var(--gray-700) !important;
}

.dropdown-toggle::after {
    display: none !important;
}

.dropdown-toggle:hover {
    background-color: var(--gray-50) !important;
    color: var(--primary) !important;
}

.dropdown-toggle:focus {
    box-shadow: none !important;
}

.dropdown-menu {
    border: none !important;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1) !important;
    border-radius: 0.5rem !important;
    padding: 0.5rem !important;
    min-width: 200px !important;
}

.dropdown-item {
    border-radius: 0.375rem !important;
    padding: 0.5rem 1rem !important;
    font-weight: 500 !important;
    color: var(--gray-700) !important;
    transition: all 0.2s !important;
}

.dropdown-item:hover {
    background-color: var(--gray-50) !important;
    color: var(--primary) !important;
}

.dropdown-item.text-danger:hover {
    background-color: #fee2e2 !important;
    color: #dc2626 !important;
}

.dropdown-divider {
    margin: 0.5rem 0 !important;
    border-color: var(--gray-200) !important;
}

.user-name {
    font-weight: 500 !important;
    margin: 0 0.25rem !important;
}

.fa-chevron-down {
    font-size: 0.75rem !important;
    color: var(--gray-500) !important;
    transition: transform 0.2s !important;
}

.dropdown-toggle[aria-expanded="true"] .fa-chevron-down {
    transform: rotate(180deg) !important;
}

/* 警告提示 */
.alert {
    border: none !important;
    border-radius: 0 !important;
    margin-bottom: 0 !important;
    padding: 0.75rem 1.25rem !important;
    transition: opacity 0.3s ease-out !important;
    display: flex !important;
    align-items: center !important;
}

.alert-danger {
    background-color: #fee2e2 !important;
    color: #b91c1c !important;
}

.alert-success {
    background-color: #dcfce7 !important;
    color: #15803d !important;
}

.alert i {
    margin-right: 0.5rem !important;
}

.alert.hide {
    opacity: 0 !important;
}

/* 响应式调整 */
@media (max-width: 991.98px) {
    .navbar-collapse {
        position: absolute !important;
        top: 100% !important;
        left: 0 !important;
        right: 0 !important;
        background-color: white !important;
        padding: 1rem !important;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1) !important;
        z-index: 1000 !important;
    }
    
    .navbar-nav {
        margin-left: 0 !important;
        width: 100% !important;
    }
    
    .nav-item {
        width: 100% !important;
    }
    
    .dropdown-menu {
        box-shadow: none !important;
        padding-left: 1rem !important;
    }
}