body {
            background: linear-gradient(135deg, #0a4d5c 0%, #0d6478 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .login-card {
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            max-width: 400px;
            width: 100%;
        }
        .login-header {
            background: linear-gradient(135deg, #0a4d5c 0%, #0d6478 100%);
            color: white;
            padding: 30px;
            text-align: center;
        }
        .login-header i {
            font-size: 3rem;
            margin-bottom: 15px;
        }
        .login-body {
            padding: 30px;
        }
        .form-control:focus {
            border-color: #0d6478;
            box-shadow: 0 0 0 0.2rem rgba(13, 100, 120, 0.25);
        }
        .btn-login {
            background: linear-gradient(135deg, #0a4d5c 0%, #0d6478 100%);
            border: none;
            color: white;
            padding: 12px;
            width: 100%;
            border-radius: 10px;
            font-weight: 600;
        }
        .btn-login:hover {
            background: linear-gradient(135deg, #083d4a 0%, #0b5563 100%);
            color: white;
        }
        .alert {
            border-radius: 10px;
        }