body {
    margin: 0;
    font-family: Arial, sans-serif;
}

.container {
    margin: 20px;
    padding: 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, .25);
}

h2 {
    text-align: center;
    color: #34495e;
}

.filter {
	position: absolute;
	top:20px;
	right: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.filter input {
    width: 90px;
    padding: 8px;
    border: 1px solid #c7d0dd;
    border-radius: 8px;
}

.filter button,
.zurueck {
    display: inline-block;
    padding: 10px 20px;
    background: #34495e;
    color: white;
    border: none;
    border-radius: 10px;
    text-decoration: none;
    cursor: pointer;
}

canvas {
    max-height: 600px;
}

.zurueck {
    margin-top: 20px;
}