/* cache-bust */
body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
}

.container {
    width: 60%;
    margin: 60px auto;
    padding: 20px;
    background: white;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

label {
    display: block;
    margin-bottom: 12px;
}

input {
    width: 100%;
    padding: 6px;
    margin-top: 4px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 8px;
    margin-top: 10px;
    cursor: pointer;
}

.result {
    margin-top: 15px;
    font-weight: bold;
}