body {
            min-height: 100vh;
            margin: 0;
            background: linear-gradient(135deg, #eef2ff, #f8fafc, #e0f2fe);
            font-family: 'Nunito', sans-serif;
        }

        .page-wrapper {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 25px 15px;
        }

        .login-card {
            width: 100%;
            max-width: 490px;
            overflow: hidden;
            border: none;
            border-radius: 20px;
            background: #fff;
            box-shadow: 0 18px 50px rgba(31, 41, 55, .13);
        }

        .login-header {
            padding: 30px 22px;
            text-align: center;
            color: #fff;
            background: linear-gradient(135deg, #78791f, #d6cd25);
        }

        .login-header .header-icon {
            font-size: 34px;
            margin-bottom: 12px;
        }

        .login-header h1 {
            font-size: 22px;
            line-height: 1.5;
            font-weight: 800;
            margin: 0 0 8px;
        }

        .login-header p {
            margin: 0;
            font-size: 14px;
            opacity: .92;
        }

        .login-content {
            padding: 30px;
        }

        .login-content h2 {
            color: #1e293b;
            font-size: 22px;
            font-weight: 800;
        }

        .login-label {
            display: block;
            margin-bottom: 8px;
            color: #334155;
            font-size: 13px;
            font-weight: 800;
        }

        .login-content .form-control-user {
            height: 50px;
            border: 1px solid #dbe2ea;
            border-radius: 10px;
            padding: 12px 15px;
            font-size: 15px;
            box-shadow: none;
        }

        .login-content .form-control-user:focus {
            border-color: #2563eb;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
        }

        .captcha-container {
            display: flex;
            justify-content: center;
            margin: 22px 0;
            overflow-x: auto;
        }

        .login-button {
            min-height: 49px;
            border: none;
            border-radius: 10px;
            background: linear-gradient(135deg, #78791f, #d6cd25);
            font-size: 16px;
            font-weight: 800;
            transition: .2s ease;
        }

        .login-button:hover {
            background: linear-gradient(135deg, #d6cd25, #78791f);
            box-shadow: 0 6px 15px rgba(37, 99, 235, .22);
        }

        .back-portal-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            width: 100%;
            min-height: 46px;
            margin-top: 13px;
            border: 1px solid #cbd5e1;
            border-radius: 10px;
            color: #334155;
            background: #fff;
            font-size: 14px;
            font-weight: 800;
            text-decoration: none !important;
            transition: .2s ease;
        }

        .back-portal-btn:hover {
            color: #1d4ed8;
            background: #eff6ff;
            border-color: #93c5fd;
        }

        .login-footer {
            padding: 18px 24px;
            background: #f8fafc;
            border-top: 1px solid #edf0f5;
        }

        .login-footer img {
            max-width: 100%;
            height: 35px;
            object-fit: contain;
        }

        @media (max-width: 480px) {
            .login-content {
                padding: 24px 18px;
            }

            .login-header h1 {
                font-size: 19px;
            }

            .login-card {
                border-radius: 16px;
            }
        }