/* Temel stiller */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
#app {
    width: 80%;
    max-width: 500px;
    background-color: #fff;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}
#girisEkrani, #hesaplamaEkrani {
    display: none;
}
#hesaplamaEkrani {
    display: none;
}
.form-group {
    margin-bottom: 15px;
}
.form-group label {
    display: block;
    margin-bottom: 5px;
}
.form-group input {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
}
#girisEkrani {
    display: block;
}
table {
    width: 100%;
    border-collapse: collapse;
    padding: 8px;
    margin-top: 20px;
}
table, th, td {
    border: 1px solid #ddd;
}
th, td {
    padding: 8px;
    text-align: center;
}
th {
    background-color: #f2f2f2;
}
#sonuc {
    padding: 15px;
    background-color: #f8f8f8;
    border: 1px solid #ddd;
    margin-top: 20px;
    text-align: center;
    display: flex;
    align-items: center;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
button:hover {
    background-color: #0056b3;
}
.input-group {
    margin-bottom: 10px;
}
label {
    display: inline-block;
    width: 100px;
}

table, th, td {
    border: 1px solid black;
    border-collapse: collapse;
    padding: 5px;
    text-align: center;
}
.discount-section {
    margin-top: 20px;
}