body {
    background-color: #1a1a1a;
    color: #f0f0f0;
    font-family: 'Arial', sans-serif;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin-top:100px;
    margin-bottom:100px;
}

.container {
    background-color: #2c2c2c;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    max-width:900px;
    width:100%;
}

h1 {
    text-align: center;
    color: #d4af37;
    font-size: 36px;
    margin-bottom: 20px;
}

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

label {
    display: block;
    font-size: 18px;
    margin-bottom: 5px;
}

input, select {
    width: calc(100% - 22px);
    padding: 10px;
    margin: 5px 0;
    font-size: 16px;
    border: 1px solid #555;
    border-radius: 5px;
    background-color: #333;
    color: #f0f0f0;
}

input[type="number"] {
    width: calc(48% - 22px);
}

button {
    width: 100%;
    padding: 10px;
    font-size: 18px;
    color: #1a1a1a;
    background-color: #d4af37;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #c7a035;
}

#result {
    margin-top: 20px;
    font-size: 18px;
    text-align: center;
}