:root {
            --primary-blue: #007BFF;
            --primary-blue-dark: #005FCC;
            --text-gray: #333;
            --border-gray: #ccc;
            --border-focus-blue: #007BFF;
            --background-neutral: #F9F9F9;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: 'Poppins', sans-serif;
            background-color: var(--background-neutral);
            color: var(--text-gray);
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            padding: 20px;
        }

        .login-container {
            display: flex;
            width: 100%;
            max-width: 1100px;
            min-height: 650px;
            background-color: #fff;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }
        
        .form-panel {
            flex: 1;
            padding: 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        
        .brand-logo {
            position: absolute;
            top: 40px;
            left: 40px;
            text-decoration: none;
            color: #1A1A1A;
            font-weight: 700;
            font-size: 24px;
        }
        
        .form-content {
            width: 100%;
            max-width: 380px;
        }

        .form-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 30px;
            text-align: center;
        }
        
        .auth-btn {
            width: 100%; height: 48px; border: none; border-radius: 50px;
            font-size: 16px; font-weight: 600; cursor: pointer;
            transition: all 0.2s ease; display: flex; align-items: center;
            justify-content: center; gap: 12px; margin-bottom: 20px;
        }

        .google-btn {
            background-color: #fff;
            color: #444;
            border: 2px solid var(--primary-blue);
            font-weight: 500;
        }
        .google-btn:hover { background-color: #f7faff; }
        .google-btn img { width: 20px; height: 20px; }
        
        .login-btn { background-color: var(--primary-blue); color: #fff; }
        .login-btn:hover { background-color: var(--primary-blue-dark); }
        
        .divider {
            display: flex; align-items: center; text-align: center;
            color: var(--border-gray); margin: 30px 0; font-size: 14px;
        }
        .divider::before, .divider::after {
            content: ''; flex: 1; border-bottom: 1px solid var(--border-gray);
        }
        .divider:not(:empty)::before { margin-right: .5em; }
        .divider:not(:empty)::after { margin-left: .5em; }

        .form-group { margin-bottom: 25px; position: relative; }
        .form-input {
            width: 100%; border: none; border-bottom: 2px solid var(--border-gray);
            background-color: transparent; padding: 10px 0; font-size: 16px;
            font-family: 'Poppins', sans-serif; color: var(--text-gray);
            transition: border-color 0.2s ease;
        }
        .form-input:focus { outline: none; border-bottom-color: var(--border-focus-blue); }
        .form-input::placeholder { color: #999; }
        .error-message {
            color: #D32F2F; font-size: 12px; margin-top: 4px; display: none;
            position: absolute; left: 0;
        }

        .password-toggle {
            position: absolute; top: 50%; right: 0;
            transform: translateY(-50%); background: none; border: none;
            cursor: pointer; padding: 4px; display: flex; color: #888;
        }
        .password-toggle svg { width: 20px; height: 20px; }
        
        .forgot-password { text-align: right; margin-top: -15px; margin-bottom: 30px; }
        .forgot-password a { font-size: 14px; color: var(--primary-blue); text-decoration: none; }
        .forgot-password a:hover { text-decoration: underline; }

        .redirect-link {
            text-align: center; margin-top: 20px; font-size: 15px; color: #555;
        }
        .redirect-link a {
            color: var(--primary-blue); text-decoration: none; font-weight: 500;
        }
        .redirect-link a:hover { text-decoration: underline; }

        .image-panel {
            flex: 1.2;
            background-color: #f0f4f8;
            display: flex; justify-content: center; align-items: center;
            overflow: hidden;
        }
        .image-panel img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        @media (max-width: 900px) {
            .image-panel { display: none; }
            .form-panel { flex: 1; }
            .brand-logo { left: 24px; top: 24px; }
        }
        @media (max-width: 480px) {
            body { padding: 0; }
            .login-container { border-radius: 0; box-shadow: none; min-height: 100vh; }
        }