body {
        background: linear-gradient(135deg, #4a5db3 0%, #0e0e0e 100%);
        min-height: 100vh;
        display: flex;
        align-items: center;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

    .login-container {
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        border-radius: 20px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        padding: 0;
        overflow: hidden;
        max-width: 900px;
        width: 100%;
    }

    .login-left {
        background: linear-gradient(45deg, #4a63d4 0%, #000000 100%);
        color: white;
        padding: 3rem;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .login-left::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
        animation: float 20s linear infinite;
    }

    @keyframes float {
        0% {
            transform: translate(0, 0) rotate(0deg);
        }

        100% {
            transform: translate(-50px, -50px) rotate(360deg);
        }
    }

    .login-left h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
        font-weight: 700;
        z-index: 1;
        position: relative;
    }

    .login-left p {
        font-size: 1.1rem;
        opacity: 0.9;
        z-index: 1;
        position: relative;
    }

    .login-right {
        padding: 3rem;
    }

    .login-form {
        max-width: 400px;
        margin: 0 auto;
    }

    .form-control {
        border: 2px solid #e9ecef;
        border-radius: 10px;
        padding: 12px 16px;
        font-size: 1rem;
        transition: all 0.3s ease;
    }

    .form-control:focus {
        border-color: #667eea;
        box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    }

    .input-group {
        margin-bottom: 1.5rem;
    }

    .input-group-text {
        background: #f8f9fa;
        border: 2px solid #e9ecef;
        border-right: none;
        border-radius: 10px 0 0 10px;
        color: #667eea;
    }

    .input-group .form-control {
        border-left: none;
        border-radius: 0 10px 10px 0;
    }

    .btn-login {
        background: linear-gradient(45deg, #4a63d4 0%, #000000 100%);
        border: none;
        border-radius: 10px;
        padding: 12px 24px;
        font-size: 1rem;
        font-weight: 600;
        color: white;
        width: 100%;
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .btn-login:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
        color: #fff;
    }

    .btn-login:active {
        transform: translateY(0);
    }

    .btn-login.loading {
        pointer-events: none;
    }

    .btn-login .spinner-border {
        width: 1rem;
        height: 1rem;
        display: none;
    }

    .btn-login.loading .spinner-border {
        display: inline-block;
    }

    .btn-login.loading .btn-text {
        display: none;
    }

    .login-header {
        text-align: center;
        margin-bottom: 2rem;
    }

    .login-header h2 {
        color: #2c3e50;
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .login-header p {
        color: #6c757d;
        font-size: 0.95rem;
    }

    .forgot-password {
        text-align: center;
        margin-top: 1.5rem;
    }

    .forgot-password a {
        color: #667eea;
        text-decoration: none;
        font-size: 0.9rem;
    }

    .forgot-password a:hover {
        text-decoration: underline;
    }

    .demo-credentials {
        background: #f8f9fa;
        border: 1px solid #e9ecef;
        border-radius: 10px;
        padding: 1rem;
        margin-bottom: 1.5rem;
        font-size: 0.85rem;
    }

    .demo-credentials h6 {
        color: #495057;
        margin-bottom: 0.5rem;
    }

    .demo-credentials .credential-item {
        margin-bottom: 0.25rem;
    }

    .demo-credentials .credential-item strong {
        color: #667eea;
    }

    .alert {
        border-radius: 10px;
        border: none;
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .integration-icon {
        font-size: 4rem;
        margin-bottom: 1rem;
        opacity: 0.8;
    }

    @media (max-width: 768px) {
        .login-left {
            padding: 2rem;
        }

        .login-right {
            padding: 2rem;
        }

        .login-left h1 {
            font-size: 2rem;
        }
    }

    .feature-list {
        list-style: none;
        padding: 0;
        margin-top: 2rem;
    }

    .feature-list li {
        padding: 0.5rem 0;
        opacity: 0.9;
    }

    .feature-list li i {
        margin-right: 0.5rem;
        width: 16px;
    }

    .toast-container {
        position: fixed;
        top: 20px;
        right: 20px;
        z-index: 1050;
    }