html,
    body {
        min-height: 100%;
    }

    body {
        margin: 0;
        /*background: #f4f7fa;*/
        background: linear-gradient(150deg, #26054d, #2b51b2);
        color: #334155;
        font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    }

    .login-page {
        min-height: calc(100vh - 70px);
        display: flex;
        align-items: center;
        padding: 45px 15px;
    }

    .login-wrapper {
        max-width: 1050px;
        margin: 0 auto;
    }

    .login-panel {
        overflow: hidden;
        background: #ffffff;
        border: 1px solid #e4eaf0;
        border-radius: 16px;
        box-shadow: 0 18px 50px rgba(15, 23, 42, 0.10);
    }

    /*
     * Bootstrap 3 utiliza float en las columnas.
     * Flexbox permite que ambos lados tengan la misma altura.
     */
    .login-panel-row {
        display: flex;
        flex-wrap: wrap;
    }

    .login-panel-row > div {
        float: none;
    }

    .login-form-section {
        min-height: 590px;
        padding: 55px 55px 45px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .login-logo {
        display: block;
        width: 100%;
        max-width: 250px;
        height: auto;
        margin: 0 auto 28px;
    }

    .login-title {
        margin: 0 0 8px;
        color: #172033;
        font-size: 26px;
        font-weight: 600;
        text-align: center;
    }

    .login-subtitle {
        margin: 0 0 30px;
        color: #718096;
        font-size: 15px;
        line-height: 1.6;
        text-align: center;
    }

    .login-error {
        border: 0;
        border-left: 4px solid #d9534f;
        border-radius: 6px;
        background: #fff2f1;
        color: #a94442;
        margin-bottom: 24px;
    }

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

    .login-form label {
        margin-bottom: 7px;
        color: #42526a;
        font-size: 13px;
        font-weight: 600;
    }

    .login-input-group {
        width: 100%;
    }

    .login-input-group .input-group-addon {
        min-width: 48px;
        background: #f8fafc;
        border-color: #dce3ea;
        color: #2e6da4;
    }

    .login-input-group .form-control {
        height: 48px;
        border-color: #dce3ea;
        box-shadow: none;
        font-size: 15px;
    }

    .login-input-group .form-control:focus {
        border-color: #4d8dcc;
        box-shadow: 0 0 0 3px rgba(51, 122, 183, 0.10);
    }

    .login-help {
        margin: 3px 0 24px;
        color: #7b8794;
        font-size: 12px;
        line-height: 1.5;
    }

    .btn-login {
        height: 48px;
        border: 0;
        border-radius: 6px;
        font-size: 15px;
        font-weight: 600;
        letter-spacing: 0.2px;
        transition: all 0.2s ease;
    }

    .btn-login:hover,
    .btn-login:focus {
        transform: translateY(-1px);
        box-shadow: 0 7px 16px rgba(51, 122, 183, 0.25);
    }

    .login-security {
        margin-top: 22px;
        color: #94a3b8;
        font-size: 11px;
        text-align: center;
    }

    .login-security .glyphicon {
        margin-right: 4px;
    }

    .product-section {
        position: relative;
        min-height: 590px;
        padding: 50px;
        overflow: hidden;
        background:
            radial-gradient(
                circle at top right,
                rgba(253, 217, 24, 0.18),
                transparent 32%
            ),
            linear-gradient(145deg, #13263b 0%, #1d4568 100%);
        color: #ffffff;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .product-section:after {
        position: absolute;
        right: -80px;
        bottom: -100px;
        width: 260px;
        height: 260px;
        content: "";
        border: 45px solid rgba(255, 255, 255, 0.035);
        border-radius: 50%;
    }

    .product-content {
        position: relative;
        z-index: 2;
    }

    .product-badge {
        display: inline-block;
        margin-bottom: 18px;
        padding: 7px 13px;
        background: rgba(253, 217, 24, 0.13);
        border: 1px solid rgba(253, 217, 24, 0.32);
        border-radius: 20px;
        color: #fdd918;
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 1px;
        text-transform: uppercase;
    }

    .product-title {
        margin: 0 0 18px;
        font-size: 34px;
        font-weight: 300;
        line-height: 1.2;
    }

    .product-title strong {
        color: #fdd918;
        font-weight: 700;
    }

    .product-description {
        max-width: 450px;
        margin-bottom: 25px;
        color: rgba(255, 255, 255, 0.78);
        font-size: 15px;
        line-height: 1.7;
    }

    .product-features {
        margin: 0 0 30px;
        padding: 0;
        list-style: none;
    }

    .product-features li {
        margin-bottom: 13px;
        color: rgba(255, 255, 255, 0.90);
        font-size: 14px;
    }

    .product-features .glyphicon {
        width: 25px;
        color: #fdd918;
    }

    .video-box {
        position: relative;
        overflow: hidden;
        border: 1px solid rgba(255, 255, 255, 0.15);
        border-radius: 10px;
        background: #0c1723;
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
    }

    .whatsapp-link {
        display: inline-block;
        margin-top: 20px;
        color: #ffffff;
        font-size: 13px;
        font-weight: 600;
        text-decoration: none;
    }

    .whatsapp-link:hover,
    .whatsapp-link:focus {
        color: #fdd918;
        text-decoration: none;
    }

    .whatsapp-icon {
        display: inline-block;
        margin-right: 7px;
        color: #25d366;
        font-size: 17px;
        vertical-align: middle;
    }

    .login-footer {
        padding: 22px 15px 0;
        color: #94a3b8;
        font-size: 12px;
        text-align: center;
    }

    @media (max-width: 991px) {
        .login-page {
            display: block;
            padding-top: 25px;
        }

        .login-panel-row {
            display: block;
        }

        .login-form-section,
        .product-section {
            min-height: auto;
        }

        .login-form-section {
            padding: 45px 35px;
        }

        .product-section {
            padding: 45px 35px;
        }

        .product-title {
            font-size: 29px;
        }
    }

    @media (max-width: 480px) {
        .login-page {
            padding: 15px 8px 30px;
        }

        .login-panel {
            border-radius: 10px;
        }

        .login-form-section,
        .product-section {
            padding: 35px 22px;
        }

        .login-logo {
            max-width: 210px;
        }

        .login-title {
            font-size: 23px;
        }

        .product-title {
            font-size: 26px;
        }
    }