body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: auto;
    background: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1, h2 {
    text-align: center;
    color: #333;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
}

input {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
    margin-bottom: 10px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

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

.expenses-container {
    margin-top: 30px;
}

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

li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
}

li button {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
}

li button:hover {
    background-color: #c82333;
}