body {
    font-family: 'Arial', sans-serif;
    background-image: url('assets/background.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.calculator-container {
    background-color: rgba(170, 167, 167, 0.9);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(245, 235, 235, 0.2);
    max-width: 400px;
    width: 100%;
    text-align: center;
    transition: transform 0.3s ease;
}

.calculator-container:hover {
    transform: scale(1.05);
}

h1 {
    margin-bottom: 20px;
    color: #333333;
}

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

label {
    display: block;
    margin-bottom: 5px;
    color: #555555;
}

input, select {
    width: 100%;
    padding: 8px;
    margin-bottom: 9px;
    border: 1px solid #cccccc;
    border-radius: 7px;
}

button {
    padding: 10px 20px;
    background-color: #131213;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #69c2b6;
}

#result {
    margin-top: 20px;
    font-size: 1.2em;
    font-weight: bold;
    color: #faf608;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .calculator-container {
        max-width: 90%;
    }

    h1 {
        font-size: 1.5em;
    }

    input, select, button {
        font-size: 1em;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.2em;
    }

    input, select, button {
        font-size: 0.9em;
    }
}