styles.css

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #0c0c0c;
    color: #fff;
}

header {
    background-color: #001f3f;
    padding: 1rem;
    text-align: center;
    border-bottom: 3px solid #0074D9;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2.5rem;
    margin: 0;
}

main {
    padding: 2rem;
}

form {
    margin-bottom: 1rem;
    text-align: center;
}

#csvFile {
    display: none;
}

#csvFileLabel {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: #0074D9;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

#csvFileLabel:hover {
    background-color: #0056b3;
}

#grafanaContainer {
    border: 1px solid #0074D9;
    border-radius: 10px;
    min-height: 300px;
    background-color: #001f3f;
    padding: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}