/* 全局样式 */
body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: 600;
}

.navbar-brand i {
    margin-right: 8px;
}

/* 页面内容 */
.page-content {
    min-height: calc(100vh - 100px);
}

/* 主容器样式 - 添加左右内边距 */
.container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

/* 响应式内边距 */
@media (max-width: 1200px) {
    .container-fluid {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (max-width: 768px) {
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

@media (max-width: 576px) {
    .container-fluid {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
}

/* 统计卡片 */
.stat-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-icon {
    font-size: 2rem;
    opacity: 0.7;
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #e9ecef;
    border-radius: 12px 12px 0 0 !important;
    font-weight: 600;
}

/* 节点列表样式 */
.node-item {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 10px;
    background: white;
    transition: all 0.2s ease;
}

.node-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transform: translateY(-1px);
}

.node-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    gap: 12px;
}

.node-name {
    font-weight: 600;
    color: #333;
    flex: 1;
    margin-right: 8px;
}

.node-status {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.node-status.online {
    background-color: #d4edda;
    color: #155724;
}

.node-status.offline {
    background-color: #f8d7da;
    color: #721c24;
}

.node-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
    font-size: 0.85rem;
    color: #666;
}

.node-info-item.last-test {
    grid-column: 1 / -1;
    padding-top: 0;
}

.latency-info {
    font-weight: 500;
}

.latency-value {
    margin-left: 4px;
    font-weight: 600;
    color: #007bff;
}

.latency-separator {
    margin: 0 8px;
    color: #ccc;
    font-weight: normal;
}

.node-info-item {
    display: flex;
    align-items: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-info-item i {
    margin-right: 4px;
    width: 14px;
    flex-shrink: 0;
}

/* 测速结果样式 */
.result-item {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 10px;
    background: white;
}

.result-success {
    border-left: 4px solid #28a745;
}

.result-failure {
    border-left: 4px solid #dc3545;
}

.result-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: 10px;
}

.result-node {
    font-weight: 600;
    color: #333;
}

.result-time {
    color: #666;
    font-size: 0.9rem;
}

.result-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
    font-size: 0.9rem;
}

.result-detail {
    display: flex;
    align-items: center;
}

.result-detail i {
    margin-right: 5px;
    width: 16px;
}

/* 通知样式 */
.notification-item {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 10px;
    background: white;
}

.notification-sent {
    border-left: 4px solid #28a745;
}

.notification-pending {
    border-left: 4px solid #ffc107;
}

.notification-failed {
    border-left: 4px solid #dc3545;
}

/* 按钮样式 */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-success {
    background-color: #198754;
    border-color: #198754;
}

.btn-info {
    background-color: #0dcaf0;
    border-color: #0dcaf0;
}

.btn-warning {
    background-color: #ffc107;
    border-color: #ffc107;
    color: #000;
}

.btn-danger {
    background-color: #dc3545;
    border-color: #dc3545;
}

/* 表单样式 */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #ced4da;
    transition: border-color 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* 分页样式 */
.pagination {
    justify-content: center;
    margin-top: 20px;
}

.page-link {
    border-radius: 6px;
    margin: 0 2px;
    border: 1px solid #dee2e6;
}

.page-link:hover {
    background-color: #e9ecef;
}

.page-item.active .page-link {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

/* 加载覆盖层 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    text-align: center;
    color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .node-info {
        grid-template-columns: 1fr;
        gap: 6px;
        font-size: 0.8rem;
    }
    
    .result-details {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        margin-bottom: 15px;
    }
    
    .node-info-item {
        white-space: normal;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* 状态指示器 */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.status-indicator i {
    font-size: 0.8rem;
}

/* 工具提示 */
.tooltip {
    font-size: 0.8rem;
}

/* 徽章样式 */
.badge {
    border-radius: 12px;
    font-weight: 500;
}

/* 进度条样式 */
.progress {
    border-radius: 10px;
    height: 8px;
}

.progress-bar {
    border-radius: 10px;
}

/* 表格样式 */
.table {
    border-radius: 8px;
    overflow: hidden;
}

.table th {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
}

.table td {
    vertical-align: middle;
}

/* 模态框样式 */
.modal-content {
    border-radius: 12px;
    border: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.modal-header {
    border-bottom: 1px solid #e9ecef;
    border-radius: 12px 12px 0 0;
}

.modal-footer {
    border-top: 1px solid #e9ecef;
    border-radius: 0 0 12px 12px;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}