* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: #f7f7f7;
    font-family: 'Poppins', sans-serif;
}

.container {
    margin: 30px auto;
    width: 350px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h2 {
    text-align: center;
    margin-bottom: 20px;
}

.balance {
    margin: 20px 0;
    text-align: center;
}

.inc-exp-container {
    display: flex;
    justify-content: space-between;
    margin: 20px 0;
    padding: 10px;
    background-color: #f2f2f2;
    border-radius: 5px;
}

.inc-exp-container > div {
    flex: 1;
    text-align: center;
}

.money {
    font-size: 20px;
    margin-top: 5px;
}

.money.plus {
    color: green;
}

.money.minus {
    color: red;
}

.list {
    list-style-type: none;
    padding: 0;
    margin-bottom: 40px;
}

.list li {
    background-color: #f2f2f2;
    padding: 10px;
    border-right: 5px solid;
    margin-top: 10px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
}

.list li.plus {
    border-color: green;
}

.list li.minus {
    border-color: red;
}

.form-control {
    margin-bottom: 10px;
}

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

.form-control input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.btn {
    width: 100%;
    background-color: #9c88ff;
    color: white;
    padding: 10px;
    border: none;
    margin-top: 10px;
    border-radius: 5px;
    cursor: pointer;
}

.btn:hover {
    background-color: #7f74d7;
}