:root {
    --primary-color: #2196F3;
    --secondary-color: #03A9F4;
    --danger-color: #F44336;
    --warning-color: #FF9800;
    --success-color: #4CAF50;
    --dark-blue: #0D47A1;
    --light-bg: #F5F7FA;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--light-bg);
    color: #333;
}

.container {
    padding: 20px;
}

header {
    background-color: var(--dark-blue);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo i {
    font-size: 2rem;
}

.dashboard-title {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #333;
    padding: 10px 0;
    border-bottom: 2px solid var(--primary-color);
}

.system-status {
    background: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
}

.indicator {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: var(--success-color);
}

.last-updated {
    color: #666;
    font-size: 0.9rem;
}

.dashboard-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 20px;
}

.card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.card-title {
    font-size: 1.2rem;
    color: #333;
    display: flex;
    align-items: center;
    gap: 8px;
}

.parameter-value {
    font-size: 2rem;
    font-weight: bold;
    margin: 10px 0;
    color: var(--primary-color);
}

.parameter-unit {
    font-size: 1rem;
    color: #666;
}

.status-normal {
    color: var(--success-color);
}

.status-warning {
    color: var(--warning-color);
}

.status-danger {
    color: var(--danger-color);
}

.chart-container {
    width: 100%;
    height: 220px;
    position: relative;
    overflow: hidden;
    padding: 0;
    margin: 0 auto 10px auto;
    display: flex;
    align-items: center;
    justify-content: center;
}
.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
    display: block;
}

.parameter-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: #666;
    margin-top: 10px;
}

.maintenance-card {
    grid-column: 1 / -1;
}

.maintenance-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.maintenance-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.maintenance-table th,
.maintenance-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.maintenance-table th {
    background-color: #f5f5f5;
    color: #333;
}

.progress-bar {
    height: 8px;
    background-color: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background-color: var(--primary-color);
}

.priority-high {
    color: var(--danger-color);
}

.priority-medium {
    color: var(--warning-color);
}

.priority-low {
    color: var(--success-color);
}

.action-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: background-color 0.3s;
}

.action-button:hover {
    background-color: var(--dark-blue);
}

.data-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0;
    align-items: initial;
}

.main-parameter-card {
    max-width: 600px;
}

.historical-data {
    grid-column: 1 / -1;
}

.historical-data .chart-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tabs {
    display: flex;
    margin-bottom: 15px;
    border-bottom: 1px solid #ddd;
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}

.tab.active {
    border-bottom: 2px solid var(--primary-color);
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .data-cards {
        grid-template-columns: 1fr;
    }
}

.historical-chart-container {
    height: 1500px;
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
}
.historical-chart-container canvas {
    flex: 1 1 0;
    width: 100% !important;
    height: 0 !important;
    min-height: 0;
    display: block;
}