body {
            background-color: #f8f9fa;
            background-image: linear-gradient(to bottom, #e3f2fd, #bbdefb);
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        .auth-container {
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            max-width: 900px;
            margin: 20px auto;
        }
        .auth-image {
            background-color: #0d6efd;
            background-image: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 400px;
            color: white;
            text-align: center;
            padding: 20px;
        }
        .auth-form {
            padding: 30px;
        }
        .form-toggle {
            display: flex;
            border-bottom: 1px solid #dee2e6;
            margin-bottom: 20px;
        }
        .toggle-btn {
            flex: 1;
            padding: 10px;
            text-align: center;
            background: none;
            border: none;
            cursor: pointer;
            font-weight: 500;
            color: #6c757d;
            transition: all 0.3s;
        }
        .toggle-btn.active {
            color: #0d6efd;
            border-bottom: 3px solid #0d6efd;
        }
        .form-container {
            position: relative;
        }
        .auth-form-content {
            display: none;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .auth-form-content.active {
            display: block;
            opacity: 1;
        }
        .form-icon {
            color: #0d6efd;
            font-size: 1.2rem;
        }
        .alert {
            display: none;
        }
        .plane-icon {
            font-size: 4rem;
            margin-bottom: 20px;
        }