body {
    font-family: Arial, sans-serif;
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
    background-color: #222222;
    color: white;
}

.horizontalLayout {
    display: flex;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
}

.verticalLayout {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

h1 {
    margin: 0;
}

hr {
    margin: 0;
    border: 1px solid #ddd;
}

a {
    color: goldenrod;
    text-decoration: none;
    font-weight: bold;
}

button {
    border: none;
    font-weight: bold;
    padding: 8px 16px;
    cursor: pointer;
    border-radius: 4px;
}

.primaryButton {
    background-color: #4CAF50;
    color: white;
}

.primaryButton:hover {
    background-color: #3E8E41;
}

.secondaryButton {
    background-color: #008CBA;
    color: white;
}

.secondaryButton:hover {
    background-color: #005F6B;
}

.tertiaryButton {
    background-color: #d32f2f;
    color: white;
}

.tertiaryButton:hover {
    background-color: #b71c1c;
}

#fileList {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}