/* 三相新能源监控门户 - 主样式表 */

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --dark-text: #1e293b;
    --light-text: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
    line-height: 1.6;
}

/* 导航栏 */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 64px;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    height: 100%;
}

.nav-logo h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#current-user {
    color: var(--secondary-color);
    font-weight: 500;
}

/* 主内容区域 */
.main-content {
    margin-top: 64px;
    min-height: calc(100vh - 64px);
    padding: 2rem;
}

.page {
    display: none;
    max-width: 1200px;
    margin: 0 auto;
}

.page.active {
    display: block;
}

.page-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-text);
}

.page-header p {
    color: var(--light-text);
    margin-top: 0.5rem;
}

/* 按钮 */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #1d4ed8;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: #475569;
}

.btn-success {
    background-color: var(--success-color);
    color: var(--white);
}

.btn-warning {
    background-color: var(--warning-color);
    color: var(--white);
}

.btn-danger {
    background-color: var(--danger-color);
    color: var(--white);
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    font-size: 2rem;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
}

.stat-icon.online {
    background-color: rgba(5, 150, 105, 0.1);
}

.stat-icon.warning {
    background-color: rgba(217, 119, 6, 0.1);
}

.stat-icon.power {
    background-color: rgba(37, 99, 235, 0.1);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-text);
}

.stat-label {
    color: var(--light-text);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* 图表区域 */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-container {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.chart-container h3 {
    margin-bottom: 1rem;
    color: var(--dark-text);
    font-size: 1.125rem;
    font-weight: 600;
}

.chart-placeholder {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-bg);
    border-radius: 0.375rem;
    position: relative;
}

/* 近期告警 */
.recent-alerts {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.recent-alerts h3 {
    margin-bottom: 1rem;
    color: var(--dark-text);
    font-size: 1.125rem;
    font-weight: 600;
}

.alert-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-left: 4px solid;
    margin-bottom: 0.75rem;
    background-color: var(--light-bg);
    border-radius: 0 0.375rem 0.375rem 0;
}

.alert-item.high {
    border-left-color: var(--danger-color);
}

.alert-item.medium {
    border-left-color: var(--warning-color);
}

.alert-item.low {
    border-left-color: var(--success-color);
}

.alert-time {
    color: var(--light-text);
    font-size: 0.875rem;
    min-width: 120px;
}

.alert-message {
    flex: 1;
    color: var(--dark-text);
}

.alert-status {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.alert-status.active {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--danger-color);
}

.alert-status.acknowledged {
    background-color: rgba(217, 119, 6, 0.1);
    color: var(--warning-color);
}

/* 设备管理 */
.device-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.device-filters select,
.device-filters input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background: var(--white);
}

.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.device-card {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid;
}

.device-card.online {
    border-left-color: var(--success-color);
}

.device-card.offline {
    border-left-color: var(--danger-color);
}

.device-card.fault {
    border-left-color: var(--warning-color);
}

.device-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.device-name {
    font-weight: 600;
    color: var(--dark-text);
    font-size: 1.125rem;
}

.device-status {
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.device-status.online {
    background-color: rgba(5, 150, 105, 0.1);
    color: var(--success-color);
}

.device-status.offline {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--danger-color);
}

.device-status.fault {
    background-color: rgba(217, 119, 6, 0.1);
    color: var(--warning-color);
}

.device-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.device-info-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.device-info-label {
    color: var(--light-text);
    font-size: 0.875rem;
}

.device-info-value {
    color: var(--dark-text);
    font-weight: 500;
    font-size: 0.875rem;
}

.device-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

/* 监控数据 */
.monitoring-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.monitoring-card {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    text-align: center;
}

.monitoring-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.monitoring-label {
    color: var(--light-text);
    font-size: 0.875rem;
}

.monitoring-unit {
    font-size: 1rem;
    color: var(--secondary-color);
    margin-left: 0.25rem;
}

/* 告警表格 */
.alerts-table-container {
    background: var(--white);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.alerts-table {
    width: 100%;
    border-collapse: collapse;
}

.alerts-table th {
    background-color: var(--light-bg);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--dark-text);
    border-bottom: 1px solid var(--border-color);
}

.alerts-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.alerts-table tr:hover {
    background-color: var(--light-bg);
}

/* 报表区域 */
.report-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.report-controls input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    background: var(--white);
}

.report-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-card {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    text-align: center;
}

.summary-card h4 {
    color: var(--light-text);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.summary-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.report-chart {
    background: var(--white);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 0;
    border-radius: 0.5rem;
    width: 90%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
}

.close {
    color: var(--light-text);
    float: right;
    font-size: 28px;
    font-weight: bold;
    padding: 1rem;
    cursor: pointer;
}

.close:hover {
    color: var(--dark-text);
}

#modal-body {
    padding: 1.5rem;
}

/* 加载动画 */
.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    z-index: 3000;
}

.loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 0.5rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .device-grid {
        grid-template-columns: 1fr;
    }
    
    .device-filters {
        flex-direction: column;
    }
    
    .monitoring-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .report-controls {
        flex-direction: column;
        align-items: stretch;
    }
}