html, body {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
}

.content-body {
    padding: 0;
    flex: 1 0 auto;
    display: flex;
    flex-direction: column;
}

.auth-page {
    display: flex;
    flex: 1 0 auto;
    flex-wrap: wrap;
    width: 100%;
}

.auth-brand {
    flex: 1 1 45%;
    min-width: 320px;
    background-image: linear-gradient(155deg, rgba(0, 0, 0, 0.78) 0%, rgba(20, 20, 20, 0.7) 55%, rgba(10, 10, 10, 0.8) 100%), url("/Images/operating-oil.jpg");
    /*background: linear-gradient(155deg, #000000 0%, #1a1a1a 55%, #262626 100%);*/
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 40px;
    position: relative;
    overflow: hidden;
}

    .auth-brand::before {
        content: "";
        position: absolute;
        width: 520px;
        height: 520px;
        border-radius: 50%;
        border: 1px solid rgba(255, 215, 0, 0.12);
        top: -180px;
        right: -180px;
    }

    .auth-brand::after {
        content: "";
        position: absolute;
        width: 360px;
        height: 360px;
        border-radius: 50%;
        border: 1px solid rgba(255, 215, 0, 0.1);
        bottom: -160px;
        left: -140px;
    }

    .auth-brand img {
        width: 400px;
        margin-bottom: 28px;
        position: relative;
        z-index: 1;
    }

    .auth-brand h1 {
        font-size: 30px;
        font-weight: 700;
        letter-spacing: 0.5px;
        margin-bottom: 14px;
        position: relative;
        z-index: 1;
    }

    .auth-brand p {
        color: rgba(255, 255, 255, 0.8);
        font-size: 17px;
        max-width: 360px;
        margin: 0;
        position: relative;
        z-index: 1;
    }

    .auth-brand .auth-brand-accent {
        color: gold;
    }

.auth-form-side {
    flex: 1 1 55%;
    min-width: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f7f7f8;
    padding: 40px 24px;
}

.auth-form-card {
    width: 100%;
    max-width: 380px;
}

    .auth-form-card h2 {
        font-size: 28px;
        font-weight: 700;
        color: #1f1f1f;
        margin-bottom: 6px;
    }

    .auth-form-card .auth-subtitle {
        color: #7a7a7a;
        font-size: 16px;
        margin-bottom: 28px;
    }

.auth-form-card .auth-validation-summary.validation-summary-valid {
    display: none;
}

.auth-form-card .auth-validation-summary.validation-summary-errors {
    font-size: 14px;
}

    .auth-form-card .auth-validation-summary.validation-summary-errors ul {
        list-style: none;
        margin: 0 0 18px;
        padding: 10px 14px;
        background-color: #fdecea;
        border: 1px solid #f3c6c2;
        border-radius: 6px;
        color: #b32318;
    }

    .auth-form-card .auth-validation-summary.validation-summary-errors li {
        margin: 0;
    }

        .auth-form-card .auth-validation-summary.validation-summary-errors li + li {
            margin-top: 4px;
        }

.auth-form-card .form-group {
    margin-bottom: 18px;
}

.auth-form-card .form-group .text-danger {
    display: block;
    font-size: 13px;
    margin-top: 4px;
}

.auth-form-card .auth-input-icon-group {
    position: relative;
}

    .auth-form-card .auth-input-icon-group .fa {
        position: absolute;
        top: 50%;
        left: 15px;
        transform: translateY(-50%);
        color: #b0b0b0;
        font-size: 15px;
    }

.auth-form-card .form-control {
    box-shadow: none;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    height: 48px;
    font-size: 16px;
    padding-left: 42px;
    background-color: #fff;
}

    .auth-form-card .form-control:focus {
        border-color: #1a1a1a;
        box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
    }

.auth-form-card .auth-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
    font-size: 15px;
}

    .auth-form-card .auth-checkbox {
        position: relative;
        display: flex;
        align-items: center;
        gap: 9px;
        margin: 0;
        font-weight: normal;
        color: #4a4a4a;
        cursor: pointer;
        user-select: none;
    }

    .auth-form-card .auth-checkbox-input {
        position: absolute;
        width: 19px;
        height: 19px;
        margin: 0;
        opacity: 0;
        cursor: pointer;
    }

    .auth-form-card .auth-checkbox-box {
        flex: 0 0 auto;
        position: relative;
        width: 19px;
        height: 19px;
        border: 1.5px solid #c9c9c9;
        border-radius: 4px;
        background-color: #fff;
        transition: background-color .15s ease, border-color .15s ease;
    }

        .auth-form-card .auth-checkbox-box::after {
            content: "";
            position: absolute;
            left: 6px;
            top: 2px;
            width: 5px;
            height: 9px;
            border: solid #fff;
            border-width: 0 2px 2px 0;
            transform: rotate(45deg);
            opacity: 0;
        }

    .auth-form-card .auth-checkbox-input:checked ~ .auth-checkbox-box {
        background-color: #000;
        border-color: #000;
    }

    .auth-form-card .auth-checkbox-input:checked ~ .auth-checkbox-box::after {
        opacity: 1;
    }

    .auth-form-card .auth-checkbox-input:hover ~ .auth-checkbox-box {
        border-color: #9a9a9a;
    }

    .auth-form-card .auth-checkbox-input:focus-visible ~ .auth-checkbox-box {
        box-shadow: 0 0 0 3px rgba(0, 0, 0, .15);
    }

    .auth-form-card .auth-options a {
        color: #4a4a4a;
        text-decoration: underline;
    }

        .auth-form-card .auth-options a:hover {
            color: #000;
        }

.auth-form-card .auth-submit-btn {
    background-color: #000;
    border: none;
    color: gold;
    font-weight: 600;
    letter-spacing: 0.3px;
    height: 46px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

    .auth-form-card .auth-submit-btn:hover,
    .auth-form-card .auth-submit-btn:focus {
        background-color: #262626;
        color: #fff;
    }

.auth-form-card .auth-links {
    margin-top: 18px;
    text-align: center;
    font-size: 15px;
}

    .auth-form-card .auth-links a {
        color: #4a4a4a;
        text-decoration: underline;
    }

        .auth-form-card .auth-links a:hover {
            color: #000;
        }

.auth-form-card .auth-footnote {
    margin-top: 20px;
    text-align: center;
    font-size: 13px;
    color: #b0b0b0;
}

@media (max-width: 767px) {
    .auth-page {
        align-content: flex-start;
    }

    .auth-brand {
        flex-grow: 1;
        padding: 40px 24px;
    }

        .auth-brand img {
            width: 110px;
            margin-bottom: 16px;
        }
}