body {

    margin: 0;

    font-family: Arial, sans-serif;
}

.main-content {

    padding: 15px;

    margin-bottom: 70px;
}

.app-footer {

    width: 100%;

    background: #1f2937;

    color: white;

    padding: 12px;

    position: fixed;

    bottom: 0;

    left: 0;

    z-index: 999;

    display: flex;

    justify-content: space-between;

    align-items: center;

    font-size: 13px;

    box-shadow: 0 -2px 5px rgba(0,0,0,0.2);
}