body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #6a0dad; /* Odcień fioletu */
    color: white;
    padding: 10px 0;
    text-align: center;
}

nav {
    background-color: #8a2be2; /* Jaśniejszy odcień fioletu */
    padding: 10px;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-right: 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

main {
    padding: 20px;
}

footer {
    text-align: center;
    padding: 10px 0;
    background-color: #6a0dad;
    color: white;
    position: relative;
    bottom: 0;
    width: 100%;
}

form {
    margin: 20px 0;
}

form label {
    display: block;
    margin: 10px 0 5px;
}

form input {
    padding: 8px;
    width: 100%;
    max-width: 300px;
}

form button {
    padding: 10px;
    background-color: #6a0dad;
    color: white;
    border: none;
    cursor: pointer;
}

form button:hover {
    background-color: #8a2be2;
}

#costList {
    list-style: none;
    padding: 0;
}