* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: #f0f0f0;
    display: flex;
    justify-content: center;
    padding-top: 40px;
}

.container {
    background: white;
    padding: 25px;
    width: 350px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

label {
    font-weight: bold;
    margin-top: 10px;
    display: block;
}

input, select {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid #aaa;
}

.btn {
    width: 100%;
    padding: 10px;
    background: #4c6ef5;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.btn:hover {
    background: #364fc7;
}

#result {
    margin-top: 20px;
    padding: 15px;
    background: #e2f0d9;
    border-radius: 6px;
    display: none;
}