* { margin: 0; padding: 0; box-sizing: border-box; 
font-family: 'Vazirmatn', Tahoma, sans-serif;}
        body {
            font-family: 'Vazirmatn', Tahoma, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        .login-container {
            background: white;
            border-radius: 30px;
            padding: 40px;
            width: 100%;
            max-width: 450px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
        }
        .login-container h1 {
            text-align: center;
            color: #333;
            margin-bottom: 10px;
        }
        .login-container p {
            text-align: center;
            color: #666;
            margin-bottom: 30px;
            font-size: 14px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: #333;
        }
        .form-group input {
            width: 100%;
            padding: 12px;
            border: 2px solid #e9ecef;
            border-radius: 12px;
            font-size: 14px;
            font-family: 'Vazirmatn', Tahoma;
            transition: all 0.3s;
        }
        .form-group input:focus {
            outline: none;
            border-color: #667eea;
        }
        .btn {
            width: 100%;
            padding: 12px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-family: 'Vazirmatn', Tahoma;
            cursor: pointer;
            margin-bottom: 10px;
        }
        .btn-secondary {
            background: #6c757d;
        }
        .message {
            padding: 10px;
            border-radius: 10px;
            margin-top: 15px;
            text-align: center;
            font-size: 13px;
        }
        .error { background: #f8d7da; color: #721c24; }
        .success { background: #d4edda; color: #155724; }
        .tabs {
            display: flex;
            gap: 10px;
            margin-bottom: 30px;
            border-bottom: 2px solid #e9ecef;
            padding-bottom: 10px;
        }
        .tab {
            flex: 1;
            text-align: center;
            padding: 10px;
            cursor: pointer;
            background: none;
            border: none;
            font-family: 'Vazirmatn', Tahoma;
            font-size: 16px;
            transition: all 0.3s;
        }
        .tab.active {
            color: #667eea;
            border-bottom: 3px solid #667eea;
        }
        .form-panel {
            display: none;
        }
        .form-panel.active {
            display: block;
        }