:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #212529;
    --light-color: #f8f9fa;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

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

.card-header {
    background-color: var(--light-color);
    border-bottom: 2px solid var(--primary-color);
    font-weight: bold;
}

.status-indicator {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 8px;
}

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

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

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

.metric-card {
    text-align: center;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: bold;
    margin: 10px 0;
}

.metric-label {
    font-size: 0.9rem;
    color: #6c757d;
}

.section-title {
    color: var(--dark-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.table th {
    background-color: var(--primary-color);
    color: white;
    border: none;
}

.table td {
    border-color: #dee2e6;
}

.machine-status {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
}

.machine-running {
    background-color: #d1e7dd;
    border-left: 4px solid var(--success-color);
}

.machine-stopped {
    background-color: #f8d7da;
    border-left: 4px solid var(--danger-color);
}

.temperature-gauge {
    position: relative;
    text-align: center;
}

.temperature-value {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
}

.progress-custom {
    height: 8px;
    border-radius: 4px;
}

.zone-indicator {
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
}

.zone-a {
    background-color: #e3f2fd;
    color: #1976d2;
}

.zone-b {
    background-color: #e8f5e8;
    color: #388e3c;
}

.zone-c {
    background-color: #fff3e0;
    color: #f57c00;
}

.zone-d {
    background-color: #fce4ec;
    color: #c2185b;
}

.loading-spinner {
    text-align: center;
    padding: 50px;
}

.alert-custom {
    border-radius: 10px;
    border: none;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .metric-value {
        font-size: 2rem;
    }
    
    .temperature-value {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 15px;
    }
}

/* Chart container responsive */
.chart-container {
    position: relative;
    height: 400px;
    margin: 20px 0;
}

@media (max-width: 576px) {
    .chart-container {
        height: 300px;
    }
}