body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.calculator {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 400px; /* Lebar formulir */
    text-align: center;
}

.calculator h2 {
    margin-bottom: 20px;
}

.calculator label {
    display: block;
    margin-top: 10px;
    text-align: left;
    font-weight: bold;
}

.calculator input, .calculator button {
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    width: calc(100% - 20px);
    box-sizing: border-box;
}

.calculator button {
    background-color: #28a745;
    color: #fff;
    cursor: pointer;
}

.calculator button:hover {
    background-color: #218838;
}

.result {
    margin-top: 20px;
    font-size: 1.2em;
}

.inventory {
    margin-top: 20px;
    text-align: left;
}

.inventory p {
    margin: 5px 0;
}

.result {
    margin-top: 20px;
    font-size: 1.2em;
    border-top: 1px solid #000; /* Garis atas hitam di atas Calculation Status */
    padding-top: 10px; /* Ruang antara garis atas dan isi */
}

.instagram-link {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 1000; /* Mengatur lapisan untuk tetap di atas konten lain */
}

.instagram-logo {
    width: 40px; /* Ukuran gambar logo Instagram */
    height: 40px; /* Ukuran gambar logo Instagram */
    display: block;
}

/* Optional: Styling for responsive design */
@media (max-width: 768px) {
    .instagram-link {
        top: 20px;
        left: 20px;
    }
}

/* Untuk layar kecil (misalnya smartphone) */
@media only screen and (max-width: 600px) {
    .calculator {
        width: 100%;
        padding: 10px;
    }

    .form-container {
        flex-direction: column;
    }

    .left-form, .right-form {
        width: 100%;
        margin-bottom: 10px;
    }

    .calculator input, .calculator button {
        width: 100%;
    }
}

/* Untuk layar sedang dan besar */
@media only screen and (min-width: 601px) {
    .calculator {
        width: 80%;
        max-width: 800px; /* Maksimum lebar untuk desktop */
    }

    .form-container {
        flex-direction: row;
    }

    .left-form, .right-form {
        width: calc(50% - 10px);
        margin-bottom: 0;
    }
}