.container {
        max-width: 600px;
        margin: 20px auto;
        padding: 20px;
        background: white;
        border-radius: 20px;
        background-image: linear-gradient(0deg, #fbfbfb, #ffffff);
        border: 2px solid #ffffff;
        box-shadow: 0 0px 8px rgba(0, 0, 0, 0.1);
        display: flex;
        flex-direction: column;
        align-items: center; /* Center content */
        box-sizing: border-box; /* Include padding and border in element's total width/height */
    }
    h1 {
        text-align: center;
    }
    .container input[type="text"] {
        width: calc(100% - 22px);
        padding: 10px;
        margin-bottom: 10px;
        border: 1px solid #ccc;
        border-radius: 4px;
        font-size: 16px;
        box-shadow: none;
        box-sizing: border-box; /* Ensure padding is included in width */
    }
    .whbutton {
        width: calc(100% - 22px);
        padding: 10px;
        background-color: #2655ff;
        color: white;
        text-align: center;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-size: 16px;
        box-sizing: border-box; /* Ensure padding is included in width */
    }
    .whbutton:hover {
        background-color: #001d80;
    }
    .result {
        margin-top: 20px;
        border-top: 1px solid #eee;
        padding-top: 10px;
        width: 100%; /* Ensure result div takes full width */
    }
    .alert {
        margin: auto;
        width: calc(100% - 22px); /* Ensure alert box width matches input/button */
        padding: 1rem 1.25rem;
        margin-bottom: 1rem;
        text-align: center;
        border: 1px solid transparent;
        border-radius: 10px; /* Slightly smaller radius for alerts */
        box-shadow: none;
        box-sizing: border-box; /* Ensure padding is included in width */
    }
    .alert-info {
        color: #0c5460;
        background-color: #d1ecf1;
        border-color: #bee5eb;
    }