body {
    background-color: #f4f6f9;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar {
    min-height: 50px;
    font-size: 16px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.sekcja1 {
    height: auto;
    width: auto;
    text-align: left;
    background-color: #ffffff;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin-top: 70px;
    margin-left: 15px;
    margin-right: 15px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.page-footer {
    height: 40px;
    width: auto;
    font-size: 13px;
    color: #495057;
    border-top: 2px solid #0d6efd;
    padding-top: 10px;
    text-align: center;
    margin-top: auto;
}