/* Globální stylování */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #1e1e1e;
    color: white;
}

header {
    background-color: #000;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
}

.header-container h1 {
    margin: 0;
    font-size: 24px;
}

.date-filter {
    display: flex;
    gap: 10px;
}

.date-filter input,
.date-filter select {
    padding: 5px;
    font-size: 14px;
    border: none;
    border-radius: 5px;
}

.logo {
    font-size: 20px;
    font-weight: bold;
}

main {
    padding: 20px;
}

/* Sekce s metrikami */
.metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.metric {
    background: #333;
    padding: 20px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
}

.metric h2 {
    margin: 0 0 10px 0;
    font-size: 18px;
    color: #ffc107;
}

.metric-value {
    font-size: 24px;
    font-weight: bold;
}

/* Sekce grafů */
.charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.chart-container {
    background: #333;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
}

.chart-container h3 {
    margin: 0 0 20px 0;
    font-size: 16px;
    text-align: center;
    color: #ffc107;
}

canvas {
    max-width: 100%;
    height: 200px;
}