html, body {
    height: 100%;
}

body {
    min-height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    margin: 0;
}

#popup {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #022148;
}

    #popup.show {
        display: block !important;
    }

    #popup .popup-container {
        margin: 30px auto;
        max-width: 600px;
    }

        #popup .popup-container .logo {
            margin-bottom: 10px;
            max-width: 200px;
        }

        #popup .popup-container .box {
            background-color: #fff;
            padding: 30px;
            border-radius: 5px;
            margin: 0 15px;
            box-shadow: 0 0 1px 0 rgba(61,119,180,0.12), 0 0.25rem 12px 0 rgba(91,139,199,0.24);
        }

/* --- Estilização moderna para a mensagem informativa --- */
.info-message {
    max-width: 570px;
    margin: 20px auto;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(245,245,245,0.9));
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    text-align: center;
    font-family: 'Segoe UI', Tahoma, sans-serif;
}

    .info-message p {
        margin: 0;
        font-size: 1rem;
        line-height: 1.4;
        color: #333;
    }

        .info-message p::before {
            content: "ℹ️ ";
            font-size: 1.1rem;
            vertical-align: middle;
        }

.input-group {
    position: relative;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -ms-flex-align: stretch;
    align-items: stretch;
    width: 100%;
}

    .input-group .form-control {
        position: relative;
        -ms-flex: 1 1 auto;
        flex: 1 1 auto;
        width: 1%;
        margin-bottom: 0;
        padding: 20px;
        font-size: 18px;
        font-weight: 700;
        letter-spacing: 1px;
        border-radius: 5px 0 0 5px;
        border: 1px solid #e2e2e2;
        border-right: 0;
    }

    .input-group .input-group-append {
        display: flex;
    }

        .input-group .input-group-append .btn {
            padding-left: 15px;
            padding-right: 15px;
            text-transform: uppercase;
            font-weight: 800;
            font-size: 14px;
            letter-spacing: .5px;
            background-color: #ff9023;
            color: #fff;
            border-radius: 0 5px 5px 0;
            border: 0;
            cursor: pointer;
            transition: all .4s;
        }

            .input-group .input-group-append .btn:hover {
                background-color: #ffcc29;
            }

            .input-group .input-group-append .btn:disabled {
                opacity: .7;
                cursor: not-allowed;
            }

.message-error {
    display: none;
    font-size: 12px;
    font-weight: bold;
    color: #fff;
    margin-top: 15px;
    background-color: rgb(247, 66, 66);
    padding: 5px 10px;
    border-radius: 4px;
    cursor: default;
    position: relative;
}

    .message-error:after {
        content: "";
        width: 0;
        height: 0;
        position: absolute;
        border-left: 6px solid transparent;
        border-right: 6px solid transparent;
        border-bottom: 6px solid rgb(247, 66, 66);
        top: -6px;
        left: 10px;
    }

    .message-error.show {
        display: block;
    }