body {
    font-family: 'Poppins', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f4f4f4;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
    text-align: center;
}

h1 {
    color: #333;
    margin-bottom: 25px;
}

.input-group {
    margin-bottom: 18px;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: bold;
}

.input-group input[type="number"],
.input-group select {
    width: calc(100% - 22px);
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    box-sizing: border-box;
}

.input-group select {
    width: auto;
    margin-left: 10px;
}

button {
    background-color: #fd7e14;
    color: #fff;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-top: 15px;
}

button:hover {
    background-color: #e66a00;
}

.results {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    text-align: left;
}

.results h2 {
    color: #333;
    margin-bottom: 15px;
}

.results p {
    font-size: 17px;
    margin-bottom: 10px;
    color: #444;
}

.results span {
    font-weight: bold;
    color: #fd7e14;
}

.info {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    text-align: left;
    font-size: 14px;
    color: #666;
}

.info h2 {
    color: #333;
    margin-bottom: 10px;
}

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

.info ul li {
    margin-bottom: 5px;
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

    button {
        width: 100%;
        padding: 15px;
    }

    .input-group input[type="number"],
    .input-group select {
        width: 100%;
        margin-left: 0;
        margin-top: 5px;
    }
}