* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'IBM Plex Sans Arabic', sans-serif;
            background: linear-gradient(135deg, #1A73E8, #34A853);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        
        .login-container {
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            width: 100%;
            max-width: 450px;
            padding: 40px;
            text-align: center;
        }
        
        .logo {
            margin-bottom: 30px;
        }
        
        .logo h1 {
            color: #1A73E8;
            font-weight: 700;
            font-size: 28px;
            margin-bottom: 8px;
        }
        
        .logo p {
            color: #5F6368;
            font-size: 16px;
        }
        
        .form-group {
            margin-bottom: 20px;
            text-align: right;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #202124;
        }
        
        .form-group input {
            width: 100%;
            padding: 14px 16px;
            border: 1px solid #DADCE0;
            border-radius: 8px;
            font-size: 16px;
            transition: all 0.3s ease;
            direction: ltr;
        }
        
        .form-group input:focus {
            outline: none;
            border-color: #1A73E8;
            box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
        }
        
        .btn-primary {
            background: #1A73E8;
            color: white;
            border: none;
            border-radius: 8px;
            padding: 14px 24px;
            font-size: 16px;
            font-weight: 500;
            width: 100%;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
        }
        
        .btn-primary:hover {
            background: #0d5cb9;
            transform: translateY(-2px);
        }
        
        .btn-primary:active {
            transform: translateY(0);
        }
        
        .error-message {
            background: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
            border-radius: 8px;
            padding: 12px;
            margin-bottom: 20px;
            text-align: right;
            display: none;
        }
        
        .loading {
            display: none;
            text-align: center;
            margin: 20px 0;
        }
        
        .spinner {
            border: 3px solid #f3f3f3;
            border-top: 3px solid #1A73E8;
            border-radius: 50%;
            width: 24px;
            height: 24px;
            animation: spin 1s linear infinite;
            margin: 0 auto 10px;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .footer {
            margin-top: 25px;
            color: #5F6368;
            font-size: 14px;
        }
        
        .footer a {
            color: #1A73E8;
            text-decoration: none;
        }
        
        .footer a:hover {
            text-decoration: underline;
        }
        
        @media (max-width: 480px) {
            .login-container {
                padding: 30px 20px;
            }
        }