body {
    font-family: 'Arial', sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
}

form {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

label {
    display: block;
    margin-bottom: 15px;
}

input[type="number"],
select,
textarea {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

textarea {
    height: 80px;
    resize: vertical;
}

button {
    background-color: #3498db;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    display: block;
    margin: 20px auto 0;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #2980b9;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.container {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.result {
    white-space: pre-wrap;
    line-height: 1.6;
    color: #333;
}